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AGRMT NO KRGSA 20-001
KRGSA 20-001 Kern County Subbasin Coordination Agreement THIS COORDINATION AGREEMENT (the "Agreement") is made effective as of a�NjAAQY ZT =by and among the Groundwater Sustainability Agencies ("GSA") within the Kern County Subbasin that are developing a Groundwater Sustainability Plan ("GSP") (each a "Party" and collectively the "Parties"), each of which is identified in Appendix 1 and is made with reference to the following facts: WHEREAS, on September 16, 2014, Governor Jerry Brown signed into law Senate Bills 1168 and 1319 and Assembly Bill 1739, known collectively as the Sustainable Groundwater Management Act ("SGMA"); and WHEREAS, SGMA requires all groundwater basins designated as high or medium priority by the Department of Water Resources ("DWR") to manage groundwater in a sustainable manner; and WHEREAS, the Kern County Subbasin (Basin Number 5-22. 14, DWR Bulletin 118) ("Basin") within the San Joaquin Valley Groundwater Basin, has been designated as a high-priority basin by DWR; and WHEREAS, the Basin includes eleven (11) GSAs that are managing the Basin through five (5) different-GSPs; and WHEREAS, SGMA allows local agencies to engage in the sustainable management of groundwater, but requires GSAs intending to develop and implement multiple GSPs within a basin to enter into a coordination agreement; WHEREAS, the Agreement does not prevent any Party from providing comments on a GSP, or otherwise coordinating among parties with regard to specific items in a GSP outside this Agreement, on issues including but not limited to specific border conditions between GSP's and/or the timing and/or effect of projects and management actions contained within another GSP; and WHEREAS, nothing in this Agreement represents or should be construed as the determination of any claim or assertion of a groundwater right; specifically, the coordinated water budget information or data does not amount to an allocation, or otherwise represent a determination, validation, or denial of any claimed or asserted groundwater right. THEREFORE, in consideration of the facts recited above and of the covenants, terms and conditions set forth herein, the Parties agree as follows: SECTION 1— PURPOSE The purpose of this Agreement is to comply with SGMA coordination agreement requirements and ensure that the multiple GSPs within the Basin are developed and implemented utilizing the same methodologies and assumptions as required under SGMA and Title 23 of the California Code of Regulations, and that the elements of the GSPs are appropriately coordinated to support sustainable management. The Parties intend that this Agreement be a description of how the multiple GSPs, developed by the individual GSAs, are implemented together to satisfy the requirements of SGMA. The Parties intend this Agreement to be incorporated as part of each individual GSP developed by the Parties. SECTION 2 -GENERAL GUIDELINES 2.1 Res onsibilitiesof the Parties The Parties shall work collaboratively to comply with SGMA and this Agreement. Each Party to this Agreement is a GSA and acknowledges it is bound by the terms of the Agreement. This Agreement does not otherwise affect each Party's responsibility to implement the terms of their respective GSP. Rather, this Agreement is the mechanism through which the Parties will coordinate portions of the multiple GSPs to ensure such GSP coordination complies with SGMA. 2.2 No Ad'udication or Alternative Plans in the Basin As of the date of this Agreement, there are no portions of the Basin that have been adjudicated or have submitted for DWR approval an alternative to a GSP pursuant to Water Code Section 10733.6. SECTION 3 - GOVERNANCE 3.1 Basin Coordination Committee The Basin Coordination Committee (BCC) will oversee the activities described in section 3.1.5 of this Agreement. The Basin Coordination Committee will consist of one representative appointed from each GSP. 3.1.1 Each Basin Coordination Committee member's compensation for service on the Basin Coordination Committee, if any, is the responsibility of the appointing Pa rty. 3.1.2 Each Basin Coordination Committee member shall serve at the pleasure of the appointing GSP and may be removed or substituted from the Basin Coordination Committee by the appointing GSP at any time. 3.1.3 The Basin Coordination Committee will meet periodically as it deems necessary to carry out the activities described in this Agreement 3.1.4 The Basin Coordination Committee may suggest subcommittees, workgroups, or otherwise request staff of the Parties to develop technical data, supporting information and/or recommendations. 3.1.5 The purposes of the Basin Coordination Committee are to (1) recommend to their respective GSAs the appointment of a Plan Manager who will act in accordance with this Agreement, and (2) provide a forum wherein the Parties may discuss basin coordination activities, which may include the development, planning, financing, environmental review, permitting, implementation, and long-term monitoring of the multiple GSPs in the Basin, pursuant to SMGA requirements ("Coordination Activities"). 3.2 Plan Manager The Plan Manager shall be appointed by unanimous agreement by the Parties for a term of one calendar year, and annually thereafter, and may be removed by unanimous agreement of the Parties with or without cause. The Plan Manager shall serve as the point of contact for DWR as specified in 23 CCR § 357.4, subd. (b)(1). The Plan Manager shall submit or assist with the submittal of all GSPs, plan amendments, supporting information, monitoring data and other pertinent information, Annual Reports, and periodic evaluations to DWR when required. The Plan Manager has no authority to take any action or represent the Basin Coordination Committee or a particular GSA without the specific direction and authority of the Basin Coordination Committee or the particular GSA, respectively. The Plan Manager is obligated to immediately disclose all communications he/she receives in his/her capacity as Plan Manager to the Basin Coordination Committee and the affected GSA, as appropriate under the circumstances. SECTION 4 - EXCHANGE OF DATA AND INFORMATION 4.1 Procedure for Exchan a of Information 4.1.1 The Parties may exchange information through collaboration and/or informal requests made at the Basin Coordination Committee level or through subcommittees suggested by the Basin Coordination Committee. However, to the extent it is necessary to make a written request for information to another Party, each Party shall designate a representative to respond to information requests and provide the name and contact information of the designee to the Basin Coordination Committee. Requests may be communicated in writing and transmitted in person or by mail, facsimile machine or other electronic means to the appropriate representative as named in this agreement. 4.1.2 Nothing in this Agreement shall be construed to prohibit any Party from voluntarily exchanging information with any other Party by any other mechanism separate from the Basin Coordination Committee. 4.2 Non -Disclosure of Confidential Information Pursuant to Section 4.1 of this Agreement, a Party may provide one or more of the other Parties with confidential information. To ensure the protection of such confidential information and in consideration of the agreement to exchange said information, appropriate arrangements may be made to restrict or prevent further disclosure. SECTION 5 - METHODOLOGIES & ASSUMPTIONS Pursuant to California Water Code section 10727.6 and 23 CCR, § 357.4, the Parties will meet and agree upon the methodologies used in their respective GSPs with respect to utilizing the same data and methodologies for the following assumptions: 1) groundwater elevation data; 2) groundwater extraction data; 3) surface water supply; 4) total water use; 5) change in groundwater storage; 6) water 3 budget; and 7) sustainable yield, and that such methodologies and assumptions will continue to be used in the future development and implementation of such GSPs, except to the extent modified by the Parties in the future. Information regarding the agreed upon Basin methodologies and assumptions shall be attached as Appendix 2 to this Agreement when approved by all Parties. SECTION 6 -MONITORING NETWORK 6.1 The Parties shall develop a monitoring network and monitoring network objectives for the Basin in accordance 23 CCR, §§ 354.32 — 354.40. Each network shall facilitate the collection of data in order to characterize groundwater and related surface water conditions in the Basin and evaluate changing conditions that occur from implementation of the individual GSPs. The individual GSPs shall include monitoring objectives, protocols, and data reporting requirements as necessary under SGMA and SGMA Regulations. 6.2 The monitoring network(s) will demonstrate short-term, seasonal, and long-term trends in groundwater and related surface water conditions. Each Party's GSP will describe the monitoring network's objectives for the Basin, including an explanation of how the network will be developed and implemented to monitor groundwater and related surface water conditions, and the interconnection of surface water and groundwater, with sufficient temporal frequency and spatial density to evaluate the affects and effectiveness of GSP implementation. The Parties shall implement the monitoring network objectives to accomplish the following: a) demonstrate progress toward achieving measurable objectives described in the GSPs; b) monitor impacts to the beneficial uses or users of groundwater; c) monitor changes in groundwater conditions relative to measurable objectives and minimum thresholds; and d) quantify annual changes in water budget components. Information regarding the agreed upon Basin monitoring network shall be attached as Appendix 3 to this Agreement when approved by all Parties. 6.3 The Parties shall design a monitoring network that will achieve the following for the enumerated sustainability indicators: 6.3.1 Chronic Lowering of Groundwater Levels: The network shall collect information sufficient to demonstrate groundwater occurrence, flow directions, and hydraulic gradients between principal aquifers and surface water features by the following methods: a) density of monitoring wells to collect measurements through depth -discrete perforated intervals to characterize the groundwater table or potentiometric surface for each principal aquifer; and b) take static groundwater elevation measurements, at least two times a year, representing seasonal low and high conditions. 6.3.2 Change in Groundwater Storage: The network will provide sufficient data for the GSAs to estimate the change in annual groundwater in storage. 6.3.3 Degraded Water Quality: 4 The network will collect sufficient spatial and temporal data from each GSA to determine groundwater quality trends for water quality indicators, as determined by the GSA, to address known water quality issues. 6.3.4 Land Subsidence: The network will identify the location, rate and extent of land subsidence, which may be measured by extensometers, surveying, remote sensing technology, or any other appropriate method. 6.3.5 Seawater Intrusion/Depletion of Interconnected Surface Water: The network will not be designed to monitor Seawater Intrusion and/or Depletion of Interconnected Surface Water because these issues are not applicable to the Basin. 6.4 The Parties shall determine the density of monitoring sites and frequency of measurements required to demonstrate short-term, seasonal, and long-term trends based upon the following factors: a) the amount of current and projected groundwater use; b) aquifer characteristics, including confined or unconfined aquifer conditions or other physical characteristics that affect groundwater flow; c) impacts to beneficial uses and users of groundwater and land uses and property interests affected by groundwater production, and adjacent basins that could affect the ability of that basin to meet the sustainability goal; d) whether individual GSAs have adequate long-term existing monitoring results or other technical information to demonstrate an understanding of aquifer response. 6.5 Parties may designate a subset of monitoring sites as representative of conditions in the Basin or a portion of the Basin. 6.6 The Parties shall identify data gaps where the Basin does not contain sufficient monitoring sites, where the frequency of monitoring is insufficient, or sites are unreliable. If such gaps are identified, the Parties shall describe the reason for the gap and describe actions that may be taken to remedy such gaps. 6.7 The Parties shall share information necessary to create a Basin map displaying the location and type of each monitoring site within the Basin, and a report in tabular format, including information regarding the monitoring site type, frequency of measurement, and purpose for which the monitoring site is being used. SECTION 7 - COORDINATED WATER BUDGET 7.1 In accordance with 23 CCR, § 357.4 subd. (b) the Parties shall prepare a coordinated water budget for the Basin as described in this sub -section, as required by 23 CCR, § 354.18. The water budget will provide an accounting and assessment of the total annual volume of groundwater and surface water entering and leaving the Basin, including historical, current, and projected water budget conditions, and the change in the volume of water stored. Information regarding the agreed upon coordinated water budget shall be attached as Appendix 4 to this Agreement when approved by all Parties. 5 7.2 Each Party for its respective GSP shall endeavor to provide the information required by 23 CCR, § 356.2 to the Basin Coordination Committee by March 1 for the preceding calendar year. 7.3 The Parties shall use the projected water budgets to estimate future baseline conditions of supply, demand, and aquifer response to their GSP implementation, and to identify the uncertainties of these projected water budget components. The Parties shall use the following methodologies and assumptions to estimate future baseline conditions concerning hydrology, water demand and surface water supply availability or reliability over the planning and implementation horizon for the projected water budget. 7.3.1 To the extent available, use 50 years of historical precipitation, evapotranspiration, and streamflow information as the baseline condition for estimating future hydrology. The projected hydrology information shall also be applied as the baseline condition used to evaluate future scenarios of hydrologic uncertainty associated with projections of climate change and sea level rise. 7.3.2 Projected water demand shall utilize the most recent reliable land use, population growth, evapotranspiration, and crop coefficient information as the baseline condition for estimating future water demand. The projected water demand information shall also be applied as the baseline condition used to evaluate future scenarios of water demand uncertainty associated with projected changes in local land use planning, population growth, and climate. 7.3.3 Projected surface water supply shall utilize the most recent reliable water supply information as the baseline condition for estimating future surface water supply. The projected surface supply shall also be applied as the baseline condition used to evaluate future scenarios of surface water supply availability and reliability as a function of the historical surface water supply as identified in the historical water budget and the projected changes in local land use planning, population growth, and climate. SECTION 8 -COORDINATED DATA MANAGEMENT SYSTEM The Parties will develop and will maintain a data management system that is capable of storing and reporting information relevant to the development and/or implementation of the GSPs and monitoring network of the Basin as required by SGMA and the SGMA Regulations. Information regarding the agreed upon coordinated data management system shall be attached as Appendix 5 to this Agreement when approved by all Parties. SECTION 9 - ADOPTION AND USE OF THE COORDINATION AGREEMENT 9.1 Cooerative Im lementation of GSPs The Parties intend that their individual GSPs will be implemented together in order to satisfy the requirements of SGMA. The collective GSPs in a coordinated manner will utilize the groundwater models, a description of the physical setting and characteristics of the separate aquifer systems within the Basin, the methodologies and assumptions as specified in Water Code section 10727.6, a description of the undesirable results, the minimum thresholds, the measurable objectives, and monitoring protocols that together provide a description of the sustainable yield of the Basin(s) as a whole, and how it will be sustainably managed. 9.2 GSP and Coordination AriEement Submission The Parties shall submit their respective GSPs to DWR through the Plan Manager in accordance with SGMA and SGMA Regulations. The Parties intend that this Agreement suffice to fulfill the requirements of providing an explanation of how the GSPs implemented together satisfy Water Code sections 10727.2, 10727.4 and 10727.6 for the entire Basin. 9.3 In Event Entire Basin Not Covered by GSP In the event it appears that the entire Basin may not be covered by one or more GSPs as of January 31, 2020, each Party may take such action as deemed necessary or appropriate by such Party with respect to filing its GSP and/or other documents with DWR. 9.4 Duration of Coordination Agreement This Coordination Agreement shall be reopened for amendment at the at the submission of the next round of GSP's covering the Kern Subbasin (no later than 5 years from January 31, 2020). Unless amended at that time, the Coordination Agreement shall be automatically renewed every 5 years. The parties may agree to unanimously amend this Coordination Agreement at any time. SECTION 10 — Modification and Termination of the Agreement 10.1 Modification This Agreement shall be reviewed as part of each five year assessment and may be supplemented, amended, or modified only by the written agreement of all the Parties. No supplement, amendment, or modification of this Agreement shall be binding unless it is in writing and signed by all Parties. 10.2 Withdrawal,,Termination Adding Parties 10.2.1 A Party may unilaterally withdraw from this Agreement without causing or requiring termination of this Agreement, effective upon 30 days' notice to the other Parties. 10.2.2 Anew GSA or group of GSA's maybe added as a Party to this Agreement if such entity or entities is submitting a GSP within the Basin. 10.2.3 This Agreement maybe rescinded by unanimous written consent of all the Parties. Nothing in this Agreement shall prevent the Parties from entering into another coordination agreement. SECTION 11— Dispute Resolution 11.1 Procedures for Resolving Conflicts 7 In the event that any dispute arises among the Parties relating to the rights and obligations arising from this Agreement, the aggrieved Party or Parties shall provide written notice to the other Parties of the dispute. Within thirty (30) days after such written notice, the Parties shall attempt in good faith to resolve the dispute through informal means. if the Parties cannot agree upon a resolution of the dispute within thirty (30) days from the providing of written notice specified above, the dispute will be elevated to the BCC for consideration, along with the notice of dispute and any other relevant supporting documentation produced and shared by the disputing parties pursuant to their informal meet and confer process. The BCC may issue a recommendation concerning resolution of the dispute. If the Parties cannot agree upon a resolution of the dispute following the input of the BCC, the disputing Parties will meet and confer to determine if other alternative dispute resolution methods are agreeable, including voluntary non-binding mediation, which may include the Department of Water Resources dispute resolution process, arbitration, or appointment of a panel of technical experts prior to commencement of any legal action. The cost of alternative dispute resolution shall be paid in equal proportion among the Parties to the dispute, otherwise the Parties shall bear their own costs. Upon completion of alternative dispute resolution, if any, and if the controversy has not been resolved, any Party may exercise any and all rights to bring a legal action relating to the dispute. 11.2 Litigation In the event a dispute or claim is not resolved by a mutually agreeable settlement through informal negotiation or voluntary mediation, the aggrieved Party may file suit in a County Superior Court with juris'iction to provide a binding decision on the matter. ,� II HenryII er Wates District Date Prifit Name, Position" � KernGroundwater Authority �Date Jason Selvidge, Vice Chair p - Bu/r'o Vista Water Storage District Date Prin Name, Positioq, Kern River Groundwater Sustainability Agency Date Print Name, Position Olcese Water ...Dist i..........r...waaa_ ct Groundwater Sustainability Agency Date Print Name, Position In the event that any dispute arises among the Parties relating to the rights and obligations arising from this Agreement, the aggrieved Party or Parties shall provide written notice to the other Parties of the dispute. Within thirty (30) days after such written notice, the Parties shall attempt in good faith to resolve the dispute through informal means. If the Parties cannot agree upon a resolution of the dispute within thirty (30) days from the providing of written notice specified above, the dispute will be elevated to the BCC for consideration, along with the notice of dispute and any other relevant supporting documentation produced and shared by the disputing parties pursuant to their informal meet and confer process. The BGC may issue a recommendation concerning resolution of the dispute. If the Parties cannot agree upon a resolution of the dispute following the input of the BCC, the disputing Parties will meet and confer to determine if other alternative dispute resolution methods are agreeable, including voluntary non-binding mediation, which may include the Department of Water Resources dispute resolution process, arbitration, or appointment of a panel of technical experts prior to commencement of any legal action. The cost of alternative dispute resolution shall be paid in equal proportion among the Parties to the dispute, otherwise the Parties shall bear their own costs. Upon completion of alternative dispute resolution, if any, and if the controversy has not been resolved, any Party may exercise any and all rights to bring a legal action relating to the dispute. 11.2 Litt ag tion In the event a dispute or claim is not resolved by a mutually agreeable settlement through informal negotiation or voluntary mediation, the aggrieved Party may file suit in a County Superior Court with jurisdiction to provide a binding decision on the matter. Henry Miller Water District Date Print Name, Position Kern Groundwater Authority Jason Selvidge, Vice Chair Buena Vista Water Storage District Print Name, Position Kern River Groundwater Sustainabiiity Agency Print Name, Position Ot ater District Groundwater Sustainability Agency Print Name, Positionels pm1deillt games L. Date Date Date 1 '6 Date 8 GROUNDWATER SUSTAINABILITY AGENCIES NOT SUBMITTING A GROUNDWATER SUSTAINABILITY PLAN Greenfield County Water District Print Name, Position, MacFarland County Water District Prm a , P sition, Cawelo Water District ep 41,g5 Print Name, Position, HE u 9 agul 0 APPENDIX 1 Buena Vista Water Storage District Henry Miller Water District Kern Groundwater Authority Groundwater Sustainability Agency Kern River Groundwater Sustainability Agency Olcese Water District Groundwater Sustainability Agency u 9 agul 9 #All 11M., oil ,G ROU WY u E January 7, 2020 111111' M 0 1 To: Mark Mulkay, Kern River GSA Patty Poire, Kern Groundwater Authority GSA From: Michael Maley, Todd Groundwater Charles Brush, Hydrolytics LLC Re: SGMA Water Budget Development using C2VSimFG-Kern in support of the Kern County Subbasin Groundwater Sustainability Plans (GSPs) 1. INTRODUCTION In compliance with the Sustainable Groundwater Management Act (SGMA), the multiple Groundwater Sustainability Agencies (GSAs) of the Kern County Subbasin (Figure 1) have successfully coordinated on the development of Groundwater Sustainability Plans (GSPs). The Kern County Subbasin, the largest in the State, was designated as critical ly-overdrafted by the California Department of Water Resources (DWR). Water management in the Kern County Subbasin is complex. It involves more than 30 water districts/systems, contains large groundwater banking projects of State-wide importance, and provides large quantities of groundwater to support both large urban centers and one of the top agricultural - producing areas in the country. In addition, most agencies are involved in conjunctive management of local surface water, imported state and federal water, and groundwater. Within this complex water management setting, GSAs recognized that a numerical modeling tool would be needed to meet GSP regulations for assessment of historical, current, and future projected water budgets that are developed on a Subbasin-wide basis (§357.4(b)(3)). The California Central Valley Groundwater -Surface Water Simulation Model (C2VSim) is anticipated to be DWR's primary tool for evaluating water management in the Central Valley and is specifically referenced in the GSP regulations for application to GSP water budgets (§354.18(f)); therefore, C2VSim was selected by the GSAs for GSP compliance. This technical memorandum describes the process and approach for selection, revisions, and application of the C2VSim to the Kern County Subbasin. The memorandum documents the development of Subbasin water budgets and presents the results. This document is being prepared as an attachment to Subbasin GSPs and as an attachment to the Kern County Subbasin GSAs' coordination agreement. 2490 Mariner Square Loop, Suite 215 1 Alameda, CA 94501 1 510 747 6920 1 toddgroundwater.com 1.1 Background During late 2016 and 2017, Subbasin GSAs held a series of meetings and workshops to evaluate potential modeling tools for GSP application. Although numerous existing models had been developed by various entities in the Subbasin over time, none of those models covered the entire Subbasin or incorporated all of the local water budget components necessary to meet GSP requirements. During the time that the Subbasin was evaluating various modeling alternatives, DWR was in the process of updating the regional C2VSim model through water year (WY) 2015. In particular, the GSP regulations stated that DWR would provide the C2VSim model "for use by Agencies in developing the water budget." Todd Groundwater developed an approach for review, revisions, and application of the C2VSim model to the Kern County Subbasin. In March 2017, the Kern River GSA (KRGSA), on behalf of the Subbasin GSAs, entered into a contract with Todd Groundwater to conduct the proposed scope of work. The Kern Groundwater Authority (KGA), on behalf of the Subbasin GSAs, also retained Woodard & Curran to conduct a peer review of the Todd Groundwater C2VSim model revisions and application for the Kern County Subbasin. DWR released the C2VSim Fine Grid Public Beta model (C2VSimFG-Beta) on May 18, 2018 (CNRA, 2018). An initial model review indicated that the C2VSimFG-Beta generally had good historical precipitation, streamflow, land use and crop acreage for the entire Central Valley. Historical water supply and demand data were also generally good in the Sacramento Valley and San Joaquin River hydrologic regions; however, data were considered less reliable in the Tulare Lake hydrologic region including Kern County. To address this concern, Todd Groundwater — working with all Subbasin GSAs —revised the Kern County portion of C2VSimFG-Beta for WY1985 to WY2015. This revised version of C2VSim for the Kern County Subbasin, referred to herein as the C2VSimFG-Kern model, was used to develop historical, current and projected -future water budgets in accordance with the requirements in the GSP regulations. The Central Valley portion of Kern County contains two groundwater subbasins, the Kern County Subbasin (5-022.14) and the White Wolf Subbasin (5-22.18) based on DWR Bulletin 118 (DWR, 2016A). All of the agencies that deliver water in White Wolf Subbasin also deliver water in the Kern County Subbasin and participated in the C2VSim revision. The White Wolf Subbasin portion of C2VSimFG-Beta model was included in this update to ensure coordination of groundwater conditions between the two subbasins. These are considered separate groundwater basins under SGMA with the Kern County Subbasin listed by DWR as critical ly-overdrafted with a GSP deadline of January 30, 2020, whereas the White Wolf Subbasin is listed as medium priority with a GSP deadline of January 30, 2022. Therefore, only the model results for the Kern County Subbasin are evaluated and reported here. 1.2 General Approach The current C2VSim model has a detailed finite element mesh that closely follows local hydrologic features. As a regional model, the C2VSimFG-Beta may over -generalize local conditions within the Kern County Subbasin so as to be inconsistent with local site-specific data and knowledge. To address this concern, the managed water supply and demand inputs were updated to better represent the local water balance. To do this, the more general assumptions in C2VSimFG-Beta were replaced with local data and knowledge that are regionally or locally significant over the WY1995 to WY2015 Hydrology Period. Local managed water supply input data (e.g., surface water deliveries, land use, irrigation demand, return flows, and groundwater banking) were collected and applied to C2VSim. Improvement of Kern County data focused on incorporating: C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 2 TODD GROUNDWATER • Surface water delivery volumes, application areas and use by water district, • Groundwater banking recharge, recovery and application of recovered water, • Irrigation demand from recent analyses of remote sensing data of evapotranspiration in the Kern County Subbasin based (ITRC, 2017), • Urban demand for the Subbasin focusing on Metropolitan Bakersfield, and • Data on other water sources and demands of local significance to individual districts/GSAs. Compiling the data needed for the model revision required a coordinated effort from the Subbasin GSAs (Figure 1) to provide locally derived data on managed water supply and demand that was used to revise the C2VSimFG-Beta for the Kern County Subbasin. The Subbasin GSAs also coordinated on selection of consistent study periods for the C2VSimFG-Kern water budget analyses. Based on technical considerations and a review of regional data, the following study periods were selected: • Historical Water Budget - WY1995 through WY2014 (Section 3.2), and • Current Water Budget - WY2015 (Section 3.2), • Projected Water Budget - WY2021 through WY2070 using 50 years of hydrologic data based on historical data (Section 6.1). Todd Groundwater also coordinated data collection and model revision efforts with a Technical Peer Review Team and local agencies to ensure input data were accurately represented in the model. Tabulated input data, model files and model -derived water budgets were provided to the Technical Peer Review Team for review of accuracy and appropriateness. Model input data and results were also provided to Kern County Subbasin water districts and local water purveyors for their review. Comments and data issues were reconciled and incorporated into the revised C2VSimFG-Kern model. 1.3 Acknowledgements These regional model revisions were enhanced by the participation of the many agencies that provided local water budget input data. Todd Groundwater worked with the member agencies, and their consultants, including the Kern River GSA, Kern Groundwater Authority GSA, Henry Miller Water District GSA, Olcese Water District GSA, and Buena Vista GSA to coordinate acquisition of input data from other agencies in formats that could be easily incorporated into the C2VSim model. On-going review of interim model results by these agencies, including local zonal water budgets, groundwater hydrographs and other model results, helped ensure that the revised model reproduced local mass balance estimates across the Subbasin. Woodard & Curran conducted an on-going peer review of model input files at the request of the GSAs in the Kern County Subbasin. Todd Groundwater worked with Woodard & Curran throughout the historical model revision process. The C2VSimFG-Kern input files for the Kern County Subbasin revised historical simulation were provided to DWR for incorporation into future C2VSim public releases. Dr. Charles Brush of Hydrolytics LLC was added to the Todd Groundwater modeling team. As an early developer of C2VSim for DWR, he provided his experience and expertise with the C2VSim. This collaborative effort provided further assurance that the significant model revisions could be managed in an efficient manner to meet the expedited schedule for water budget development. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 3 TODD GROUNDWATER 2. CMim C2VSim uses DWR's modeling code Integrated Water Flow Model (IWFM) and covers the entire California Central Valley. Kern County is located at the far southern end of the Central Valley (Figure 2). C2VSim simulates the full hydrologic cycle, calculating water demands and tracking water movement through surface water and groundwater systems, and is therefore well suited to support GSP development. 2.1 C2VSim Background DWR developed C2VSim to simulate water demands and supplies in the Central Valley. C2VSim is an application of DWR's IWFM software. IWFM is an integrated hydrologic model that simulates water flows on the linked land surface, unsaturated zone, groundwater, and surface water flow systems. A key feature of IWFM is DWR's agricultural and urban water supply and demand management module that dynamically simulates the delivery of both surface water and groundwater supplies based on both water availability and calculated water demands, as affected by usage and climatic conditions. The C2VSim is derived from a series of Central Valley hydrologic models developed by DWR and other agencies beginning in the early 1990s. Each model in this series has incorporated significant improvements over the previous version (Brush, Dogru) and Kadir, 2013). The groundwater flow system is modeled in IWFM using the finite element method and uses a highly efficient solver developed at UC Davis. The IWFM Demand Calculator (IDC) and land surface simulation process were developed with input from California irrigation management professionals. Given DWR's emphasis on water management, detailed water budgets produced by C2VSim provide strong representations of the surface water and groundwater flow systems and make it a preferred platform for developing water budgets. 2.2 C2VSImFG-Beta Model DWR's 2018 release of C2VSimFG-Beta includes historical input data for WY1922 to WY2015. C2VSimFG-Beta includes historical precipitation, stream inflow, land use and crop acreage for the entire Central Valley. These data include monthly precipitation and annual land use for each model element and estimated monthly evapotranspiration for each modeled land use type and agricultural crop. Historical surface water data include monthly surface water inflow for each river entering the model boundary and monthly surface water diversions and deliveries. The C2VSimFG-Beta finite element grid divides the Central Valley into 32,537 model elements (Figure 2). Element areas are small near streams and in developed areas and expand to larger sizes in undeveloped areas. Element sizes average 407 acres and range from 4 to 1,770 acres. Central Valley rivers and streams are represented with a network of 110 stream reaches. Surface water and groundwater inflows from uplands along the model boundary are simulated with 1,033 small watersheds. Within the Kern County Subbasin, the land surface elevation varies from 208 feet above mean sea level (msl) in the north to 3,922 feet above msl in the foothills. The groundwater aquifer system is represented with four aquifer layers and one regional confining layer. The aquifer thickness in the Kern County Subbasin varies from 857 to 9,054 feet and the deepest aquifer location is 8,752 feet below msl. The Central Valley aquifer is simulated with the following hydrostratigraphic layers, listed from top to bottom: C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 4 TODD GROUNDWATER • Shallow, unconfined aquifer, • Regional confining layer, • Active confined aquifer (contains high level of pumping), • Inactive confined aquifer (contains limited pumping), and • Saline confined aquifer. C2VSimFG-Beta includes annual land use and crop acreages and monthly precipitation, evapotranspiration, stream inflows, surface water deliveries and specified groundwater pumping rates for WY1922 to WY2015. C2VSimFG-Beta uses IDC to dynamically calculate distributed monthly water demands, allocate available water supplies to meet these demands, and calculate unmetered groundwater pumping necessary to satisfy unmet demands. C2VSimFG-Beta produces detailed monthly water budgets for arbitrary sets of elements grouped into zones. Water demands are calculated dynamically for each model element using the IWFM Demand Calculator (IDC) for agricultural, urban, native and riparian land use types. Agricultural demand is calculated based on annual crop type distribution mapping and user-specified evapotranspiration rates for 20 irrigated crop types and managed seasonal wetlands at the Kern National Wildlife Refuge. Agricultural water demand is determined based on a soil moisture balance that uses local soil properties to assess the amount of applied water (precipitation and specified surface water applications) available to meet the crop demand. If water demands in an element are not satisfied from these sources, the C2VSim model calculates the groundwater pumping needed to eliminate any deficit. Urban demands are calculated based on population and per -capita water demands. Water demands for native, undeveloped, fallow or riparian settings are calculated from monthly evapotranspiration rates and the amount of precipitation. If water demands in an element are not satisfied, no applied water is provided to these areas, and the vegetation is assumed to be in a stressed state. Runoff of precipitation in developed and undeveloped areas within the Subbasin and surrounding small watersheds is calculated using methodology included in IWFM that is based on the Soil Conservation Service Curve Method (NRCS, 2004). C2VSimFG-Beta was released after a preliminary model calibration. The distribution of aquifer parameters was based on a texture analysis of lithologic well logs compiled by the US Geological Survey (USGS, 2009) from Well Completion Reports submitted to DWR by well drillers. The texture analysis interpolated the percentage of coarse-grained material at each well location and depth of the C2VSimFG-Beta mesh. Aquifer parameters were then calculated for the model mesh based on the percentage of coarse-grained material and estimated properties for pure coarse- and fine-grained materials. Transmissivities were estimated using specific capacity tests, where available. Soil properties for each model element were derived from digitized soil maps published by the US Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS, 2018). C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 5 TODD GROUNDWATER 3. KERN COUNTY REVISIONS C2VSimFG-Beta input files were revised to incorporate locally -derived managed water supply and demand data to better represent the local water budgets for the Kern County Subbasin. Additional revisions were made to C2VSimFG-Beta model to address issues that were identified with the physical representation of the Kern County Subbasin. The result of these Kern County specific modifications is a local version of C2VSimFG-Beta that is referred to here as C2VSimFG-Kern. The following provides a summary of the model modifications. 3.1 C2VSimFG-Kern Model C2VSimFG-Kern input files incorporate locally -derived historical data for the Kern County and White Wolf subbasins to better represent local water conditions. These are two separate groundwater subbasins in the Kern County portion of the San Joaquin Groundwater Basin. The Kern County Subbasin is listed as critically-overdrafted by DWR with a GSP deadline of January 30, 2020, whereas the White Wolf Subbasin is listed as medium priority by DWR with a GSP deadline of January 30, 2022. C2VSimFG- Kern was not changed for areas outside of the Kern County Subbasin. Historical surface water diversion, water bank recharge and water bank withdrawal information were collected from local GSAs, management areas, water agencies and purveyors. Urban land use was restricted to developed areas, and urban populations and per -capita water demands were updated. Model structure (elements, streams, stratigraphy, etc.) was not modified. Model parameters were not calibrated, although some model parameters were adjusted to improve model performance in specific geographic areas. 3.2 Simulation Time Period GSP requirements indicate a need to identify an average hydrologic study period for purposes of the groundwater analyses in the basin -wide water budgets. In order to select a consistent study period, the Kern County Subbasin GSAs agreed upon an historical hydrologic study period covering WY1995 through WY2014 (October 1, 1994 through September 30, 2014). The selection of the historical hydrologic study period was based on a variety of technical criteria including: • Covers at least 10 years consistent with GSP regulations (§354.18(c)(2)(B)), • Contains 10 years characterized as above normal or wet years based on precipitation; also contains 10 years of below normal or dry years, including four critically dry years, • 100 percent of the long-term average streamflow conditions on the Kern River, as indicated by an average annual Kern River Index of 100 percent (Figure 4), • About 104 percent of long-term average precipitation (NOAA Bakersfield Meadows Field Airport Station), • Widely -available high-quality data available across the Subbasin, • Time period with current water management practices, intensive groundwater banking operations, and more recent land use patterns, • Begins in a time of relatively stable water levels (October 1994), and • Overlaps a time period with consistently developed basin -wide contour maps by Kern County Water Agency (KCWA). C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 6 TODD GROUNDWATER For the historical water budget, it is desirable to define a base period when natural hydrology represents average conditions. C2VSimFG-Kern incorporates this 20 -year base period of WY1995 through WY2014 with a 10 -year spin -up period (WY1985 to WY1994). Kern County water agencies provided locally -derived water budget data for WY1993 to WY2015 for this study so that data input extended beyond the historical base period. Additional water budget data prior to WY1993 were also collected where available and input into the model. The simulation period for C2VSimFG-Kern was set to WY1986 to WY2015 (October 1, 1985 through September 30, 2015), allowing a 10 -year spin -before the start of the historical base period. The C2VSimFG-Beta simulation period ran from October 1973 through September 2015 (WY1974 to WY2015). The period from October 1973 to September 1985 was not included in the simulation due to concerns about lack of comparable data from these earlier periods. 3.3 Data Compilation Participating agencies compiled water budget input data sets (using their staff, consultants or other resources) and provided them to Todd Groundwater. Where appropriate, Todd Groundwater developed data templates that conformed to IWFM model data needs and used them to facilitate obtaining input data from local agencies. This included monthly data for the following: • Surface water imports and diversions (inflows and outflows) by source, conveyance and application area, • Groundwater banking and managed aquifer recharge by water district or agency, • Groundwater recovery pumping of groundwater bank recharge for export from the basin, • Groundwater recovery pumping of managed aquifer recharge for local use, • Urban area population and per capita water use, and • Crop evapotranspiration (ET) rates based an analysis of satellite data (ITRC, 2017). In addition, groundwater banking data were compiled for the large Kern Fan banking projects. Recently developed crop ET rates derived from remote sensing data were used to develop monthly crop ET rates for agricultural crops. Urban land use was restricted to developed areas, urban populations and per - capita water demands were updated, and urban wastewater recharge operations were added. 3.4 Surface Water Kern County surface water diversions in C2VSimFG-Beta were grouped by project or water source, and some surface water deliveries were applied to large regions rather than to individual districts. In addition, some local surface water deliveries were missing from C2VSimFG-Beta. For C2VSimFG-Kern, the 43 Kern County surface water diversions from C2VSimFG-Beta were replaced with 113 surface water diversions developed with data provided by local agencies. The Arvin -Edison WSD, Wheeler Ridge-Maricopa WSD and Tejon-Castaic WD overlie both the Kern County and White Wolf subbasins. Surface water deliveries for these districts were apportioned to either the Kern County and White Wolf subbasins, based on data provided by Arvin -Edison WSD and Wheeler Ridge-Maricopa WSD, so that surface water deliveries to those areas could be tracked separately for the water budgets. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 7 TODD GROUNDWATER 3.4.1 River and Stream Inflow Inflows to the Kern River and Poso Creek at the Subbasin boundary are based on historical gauge data. Kern River inflows at the First Point gauge and downstream gauges were verified and updated based on the annual Kern River Hydrographic Reports produced by the City of Bakersfield (COB, 1985-2015). C2VSimFG-Beta contained Poso Creek inflows for WY1961 to WY1986. Poso Creek inflows for WY1987 to WY2015, based from flow records for the Coffee Canyon and Trenton stream gauges, were added to C2VSimFG-Kern based on data provided by the local agencies. 3.4.2 Surface Water Diversions Monthly surface water diversion data for WY1995 to WY2015 were collected for 21 agencies and recharge projects in Kern County. The data from each water district or agency included monthly surface water inflow by source and monthly surface water outflow by destination. The monthly surface water inflow and outflow data collected for this study did not have sufficient detail to track this water and create an accurate historical water budget for each canal for each month. The data did provide sufficient information to identify monthly surface water diversions from each source and deliveries to each end use. Therefore, • All diversions from the Kern River were exported from the model and treated as imports at delivery locations, • Diversions from Poso Creek and the Kern River Flood Channel (or Main Drain) were diverted from the appropriate stream nodes, and • All other surface water deliveries (State Water Project (SWP), Central Valley Project (CVP), oil field recovery water, etc.) were treated as imports. Each C2VSim surface water diversion is linked to two groups of model elements: the elements of the end use and the elements receiving the recoverable losses. A single set of elements was used for both purposes in C2VSimFG-Kern. Model elements for agricultural, urban and refuge deliveries were selected by overlaying the model grid on delivery areas maps. Model elements for recharge diversions were selected by overlaying the model grid on recharge basin maps. Monthly water delivery data for the SWP, CVP and Kern River were also provided by the agencies. Monthly turnout -level deliveries for the SWP were also compiled from the monthly SWP Report of Operations published by DWR. Monthly CVP deliveries were compiled from the USBR Report of Operations. Monthly Kern River flow and diversions were compiled from Kern River Hydrographic Reports. Water agencies in the Kern County Subbasin trade and wheel water in real time to maximize water utilization, minimize waste and energy consumption, and meet immediate water needs. Water delivery reports from water suppliers (such as the CVP and SWP) generally identify the owner of delivered water, not where it was actually delivered. Some surface water conveyances discharge water into stream or river channels for re -diversion downstream. A key part of the surface water system in Kern County is the Kern River. Kern River operations data were reviewed for calendar years 1970 to 2015. While Table 1 summarizes surface water deliveries, Table 2 summarizes Kern River diversions by turnout location as applied in C2VSimFG- Kern. 3.4.3 Surface Water Deliveries Water flow through the Kern River and its associated canal system is very complex. Water is diverted from the Kern River into a parallel canal system at several locations, with some diverted water flowing C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 8 TODD GROUNDWATER back to the river. Some water from the CVP and SWP are discharged into the Kern River for diversion downstream. Some water agencies are served from multiple diversion points along the Kern River. Several canals that receive water diverted from the Kern River also exchange water with other canals and receive some water from groundwater pump -in, so deliveries from many canals cannot be attributed to a single source. Figure 5 shows the locations of the primary streams, regional surface water canals, and groundwater recharge locations in the Kern County Subbasin. Each surface water diversion in C2VSim is allocated to a specified destination and water use. Five water use types are simulated in C2VSimFG-Kern: agricultural, urban, refuge, recharge and export. Agricultural and refuge diversions are applied to a group of model elements that corresponds to a surface water service area within a specific water agency or refuge. Urban diversions are allocated to an urban service area. Groundwater recharge diversions are allocated to the model element or elements where the receiving recharge basin is located. Three delivery fractions apportion each surface water diversion to application, loss to groundwater (recoverable loss), and loss to evaporation (non-recoverable loss). Table 1 summarizes the annual surface water deliveries for agricultural use by water district in Kern County. Table 3 summarizes surface water diversions for urban use, wastewater land disposal and wildlife refuge management in Kern County. 3.5 Groundwater Banking and Managed Aquifer Recharge Operations In our preliminary discussions with the C2VSim developers at DWR, it was revealed that significant model uncertainty was related to incomplete data regarding groundwater banking and other managed aquifer recharge (MAR) operations in the Kern County Subbasin. Recognizing the importance of these groundwater banking projects for simulating groundwater conditions, the groundwater banking and MAR operations data was updated using the earliest available records. 3.5.1 Recharge and Recovery Data A monthly time -series of recharge rates was determined for each recharge project. Recharge rates were allocated to individual recharge basins using the initial data whenever possible or were shared proportionally between basins based on historical rates. All Kern County recharge basin surface water deliveries were simulated as imports. Recharge basin locations and recovery well locations were provided by each agency or project (Figure 6). The C2VSim finite element grid was overlaid onto a map of recharge basins to determine the model elements for each recharge location. Well location coordinates were added to C2VSimFG-Kern. Monthly volumes for recharge at groundwater banking and managed aquifer recharge facilities were compiled for 16 agencies and projects (Table 4). This information originated from multiple sources, and included data provided by agencies, compiled from agency reports, and compiled from Kern River Hydrographic Reports. The data includes monthly recharge for years prior to 1995 for many projects. Several agencies and projects provided data for multiple recharge basins. Some groundwater wells used for recovery of banked water are also used for other purposes such as supplementing agricultural or urban surface water deliveries. Recognizing that several of the large groundwater banking projects (especially those on the Kern Fan) pre -date the 20 -year base period, and that future studies might simulate periods prior to 1985, all available historical data for groundwater banking operations was reviewed and updated. This included incorporating pre -1985 data for banking operations at C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 9 TODD GROUNDWATER • Arvin -Edison WSD (1966-2015), • Berrenda Mesa Project (1977-2015), • Buena Vista WSD (1963-2015), • City of Bakersfield 2800 Recharge Facilities (1973-2015), • North Kern WSD (1956-2017), and • Rosedale -Rio Bravo WSD (1980-2015). 3.5.2 Groundwater Recovery Two types of recovery wells were added to the C2VSimFG-Kern. These include district -operated water wells that were used for out -of -district transfers or out -of -basin exports of groundwater, and wells used for recovering banked groundwater and distributing the pumped groundwater via the district's water conveyance system to provide water supply, typically for agricultural use, within the district. The locations of the specified groundwater recovery wells are shown on Figure 6. The specified groundwater recovery pumping input into C2VSimFG-Kern is summarized as follows: • 229 time series for Kern County groundwater banking withdrawals were added, • 313 simulated pumping wells and 225 pumping time series for local groundwater pumping by district -operated recovery wells were added, and • Elemental agricultural, refuge and urban pumping was eliminated in areas where it has not historically occurred. Recharge and withdrawal data for the Kern Fan banking projects, including the Kern Water Bank, Berrenda Mesa Project, Pioneer Project, and the City of Bakersfield 2800 Recharge Facilities were shared with the local banking authorities for verification. Banking data for district -specific groundwater banking projects were provided by these districts. A summary of the data input for groundwater recovery pumpage added to C2VSimFG-Kern is provided in Table S. 3.5.3 Model Application A separate diversion was created to deliver surface water to each recharge basin or set of geographically close jointly managed basins. A diversion time series of monthly application rates was then created for each recharge diversion from the available data. Each recharge diversion delivers water to the model elements coinciding with the receiving recharge basin(s). Recharge basins were simulated in C2VSimFG- Kern by setting the application delivery fraction to zero, the recoverable loss fraction to 94% and the evaporation loss to 6%. Monthly groundwater recovery was generally provided by well field and destination (e.g., agriculture, urban, canal pump -in, or export). This information was used to develop a pumping time series for each well field and destination. Groundwater pumped for export from the Kern County Subbasin is summarized in Table 6. Recovery well locations and screen intervals were used to enter each recovery well into C2VSimFG-Kern. Recovery pumping time series were then allocated equally to all of the wells in each field. Some well fields supply water to two different end uses, for example supplementing surface water deliveries within the district in some months and exporting water from the district in other months. This is handled in C2VSimFG-Kern by entering the well two times. Each entry is associated with a separate time series of pumping rates and delivery destination. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 10 TODD GROUNDWATER 3.5.4 Groundwater Banking Obligations The general operation of groundwater banking facilities is to recharge excess available surface water supplies during wet years by recharging to the groundwater and recovering this water by pumping in dry years when surface water supplies are limited. Groundwater banking programs store water in the Kern County Subbasin for use by local agencies and for export to out -of -basin entities. For evaluating the groundwater sustainability, any water stored in the Kern County Subbasin that is contractually obligated to an out -of -basin entity does not contribute to the long-term groundwater sustainability because the owner of that water could call for its return at any time. However, this can be difficult to track because a common practice is to recover groundwater for local use to replace imported surface water that was sent to the out -of -basin entity. C2VSimFG-Kern does not have a mechanism to track these complex contractual exchanges, so the tracking is done as a post processing step by assigning the portion of the groundwater recharge as an out -of -basin banking obligation. The Kern County Subbasin GSAs provided the total out -of -basin banking obligation for their operations as of September 2014 for the historical assessment. As of September 2014, the out -of -basin banking obligation for the Kern County Subbasin totaled of 1,719,307 acre-feet, which, when averaged over the 20 -year period, was 85,965 acre-feet per year (AFY). The 85,965 AFY is applied during post -processing of C2VSimFG-Kern historical water budget results. 3.6 Urban Water Demand C2VSim calculates urban water demands for specified urban delivery zones, allocates specified surface water and groundwater supplies to meet these demands, and can optionally pump additional groundwater to satisfy unmet urban demands in each zone. Urban demands were represented with nine urban zones in C2VSimFG-Beta. These zones were reconfigured, and a tenth urban zone was added representing Metropolitan Bakersfield in C2VSimFG-Kern. Historical urban populations and per capita water use rates were reviewed and updated. 3.6.1 Urban Zones C2VSimFG-Kern dynamically calculates urban water demands for urban zones using time -series data of urban populations and monthly per capita water use. The urban delivery zones of C2VSimFG-Beta were modified to better represent Kern County population centers, jurisdictional boundaries and urban water sources. Although Kern County urban water delivery systems are operated by many diverse entities, their water generally comes from two sources: surface water deliveries and agency -operated groundwater wells. The nine Kern County urban zones in C2VSimFG-Beta for Kern County were numbered 97-105. The Urban Zone boundaries were adjusted, as shown on Figure 7, as follows: • Portions of Urban Zones 97, 99, 100, and 102 in C2VSimFG-Beta were used to create Urban Zone 106 representing the Metropolitan Bakersfield area, Urban Zone 98 was extended southeast to near the Stockdale Highway to include unincorporated urban areas, • The boundary of Urban Zone 99 was extended eastward to California State Route 65 to include small communities in this area, removing them from Urban Zone 100, and C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 11 TODD GROUNDWATER • The northern boundary of Urban Zone 104 was moved north to correspond to the West Kern WD service area. 3.6.2 Urban Population and Per Capita Use Historical annual urban populations for the urban zones were estimated using United States Census total population data from 1990, 2000 and 2010 (US Department of Commerce, 2018). Tabular historical census data and census block shapefiles were obtained from the IPUMS National Historical Geographic Information System Database (IPUMS 2018). These data were combined to produce maps of the geographic distributions of populations within Kern County. The historical populations for each Urban Zone were estimated by mapping census block centroids to the ten Urban Zones using ArcGIS. The 1990, 2000 and 2010 populations of each Urban Zone were then estimated as the sum of the populations of the associated census blocks. Populations for other years were estimated using interpolation and extrapolation. The population values by Urban Zone used for C2VSimFG-Kern are listed in Table 7. 3.6.3 Urban Water Use Specifications Monthly historical urban water demands for Urban Zone 106 were calculated using water delivery data from the water purveyors in the Metropolitan Bakersfield area. Monthly historical urban water demands for the other urban zones in the Kern County Subbasin were estimated using available water use data from published urban water management plans for the communities served in those zones. The historical monthly water use in each zone was then divided by the historical population to obtain the monthly per capita urban water demand. Monthly historical per capita water demands for zones without urban water management data were estimated using the per capita water demand from zones with similar demographics. The urban water use specifications indicate the portion of total urban water that is used indoors. In C2VSimFG-Kern, the portion used indoors becomes urban return flow, and the remainder is added to the urban root zone where it contributes to evapotranspiration and deep percolation. C2VSimFG-Beta included monthly urban water use specifications for each model subregion. The urban per capita water use was based on local water supply data and urban water management plans. Table 8 lists the per capita water use data used for C2VSimFG-Kern. 3.6.4 Urban Wastewater Urban wastewater for the Metropolitan Bakersfield area is treated at local wastewater treatment plants; however, wastewater disposal is primarily evaporation ponds or land disposal at locations outside of the Metropolitan Bakersfield area. C2VSimFG-Beta does not have a direct means to redirect wastewater to an outside location. Urban wastewater, based as the indoor use, is applied uniformly within the urban zone. To get around this limitation, application of wastewater for the Metropolitan Bakersfield area was turned off in C2VSimFG-Kern. The wastewater deliveries to evaporation ponds and land disposal areas from the wastewater treatment plants was assigned to the appropriate location using data provided by the plants. This conserved the water balance by not double counting wastewater, and it was applied at the appropriate locations for evaluating groundwater levels. 3.6.5 Model Application Historical annual urban population estimates were placed in the C2VSimFG-Kern urban population input file. Historical monthly urban per capita water demand estimates for each urban zone were placed in the C2VSimFG-Kern urban per capita water use file. Urban demand was calculated by C2VSimFG-Kern and the water supply to meet these demands was met first by specified surface water and groundwater C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 12 TODD GROUNDWATER pumping deliveries for urban use. The remaining water demand in each model element was met with groundwater pumped from the aquifer portion of that element. 3.7 Agricultural Crop Water Demand C2VSim dynamically calculates agricultural crop water demands and allocates supplies to meet these demands for each model element. Agricultural demands are calculated for 20 crops using historical crop acreage data and crop evapotranspiration (ETc) rates. Crop water demands in each model element are first met with stored soil moisture, surface water deliveries and specified groundwater deliveries. If the agricultural demands are not satisfied, the model can optionally calculate the additional groundwater pumping required to satisfy the unmet demands and extract that water from the groundwater component of the model element. C2VSimFG-Beta contained one set of monthly ETc rates for each model subregion that were applied to all years despite climatic variation. New monthly ETc rates for three model subregions (northeast, northwest, south) in Kern County were calculated for 1993-2015 using monthly remote sensing imagery and detailed annual crop maps. ETc for 1974-1992 were estimated from 1993-2015 values by using the values for similar water year types based on the San Joaquin Index. Satellite data were not available for 2012, so ITRC was unable to provide METRIC data for 2012. In C2VSimFG-Kern, 2013 was applied as an appropriate proxy for ETc data in 2012 because of their hydrologic similarity. A remote sensing study of historical ETc rates across the entire Kern County Subbasin by the Irrigation and Training Research Center (ITRC, 2017) provided detailed basin -wide agricultural demands that corresponded to the WY1995 to WY2014 base period. These data were used to develop monthly ETc rates for the Kern County portion of the model. 3.7.1 ET Rates The Irrigation Training and Research Center (ITRC) at California Polytechnic State University, San Luis Obispo, has developed a procedure to use remote sensing imagery from Landsat satellites to calculate historic ETc rates (ITRC, 2017). The Mapping of Evapotranspiration with Internal Calibration (METRIC) method was originally developed by Richard Allen of the University of Idaho. ITRC made several modifications to the original METRIC method to better match California data and conditions (named the ITRC-METRIC method). These modifications include using grass for reference evapotranspiration (ETo), incorporating a semi -automated calibration procedure and spatially interpolating ETo rates. An example of the METRIC ET data for the total annual ET in 2013 is provided in Figure 8. ITRC used Landsat imagery for 1994-2015 (except 2012 when no imagery was available) and the ITRC- METRIC method to develop monthly raster maps of ETc at 30 x 30 -meter resolution for the Kern County portion of the Central Valley (ITRC, 2017). The monthly ETc raster maps were used with annual DWR crop maps to calculate the average ETc by crop type for the three Kern County C2VSim subregions. ITRC-METRIC raster data were used to determine the exact areas of applied irrigation and total annual ETc. A raster pixel was assumed to be irrigated if the total annual ETc was greater than 20 inches. The following data processing steps were used to determine monthly ETc rates for each crop and C2VSim subregion: • Create irrigation coverages — ITRC-METRIC monthly ETc raster data were summed to calculate total annual ETc for each year for each raster location. The ArcGIS Reclassify tool was then used on each annual ETc raster to create a binary polygon coverage for each year for 1994-2015 C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 13 TODD GROUNDWATER (except 2012), setting the attribute "IRR" to 1 if total annual ETc was over 20 in/year, and to 0 if total annual ETc was equal to or less than 20 in/year. Create land use coverages — Annual DWR land use rasters were converted to polygon coverages with the attribute "Crop" set to the corresponding integer crop value used in C2VSimFG-Kern. The land use rasters were checked against GIS maps produced by the Kern County Agricultural Commissioner and errors in the DWR land use rasters were corrected. DWR land use maps for 1994-1997 were missing large areas of data, so the 1998 land use map was used to approximate the land use for 1994-1997. • Create monthly zone maps — One zone shapefile was created for each month by using the ArcGIS Union tool to combine a shapefile of the three C2VSim subregions with the irrigation coverage (produced in step 1) and the land use coverage (produced in step 2). Each monthly zone polygon shapefile has three attributes: C2VSim subregion, binary irrigation indicator, and a land use crop value. The dissolve function was used to combine zones with identical parameters. • Calculate average monthly ETc for each zone —The ArcGIS Zonal Statistics by Table tool was used to calculate the average ETc value for each zone for each month. The individual pixels in each monthly ETc raster were averaged within each zone (produced in step 3). ITRC-METRIC data for 2013 were used in place of missing data for 2012. • Combine tables — The MS Access Append function was used to combine the monthly ETc tables into a master table of monthly ETc by crop and C2VSim subregion. • Output data — Data from the Access database was exported in a form consistent with the C2VSimFG-Kern input files. The output was also summarized to show the average monthly ETc for the irrigated area of each crop type in each model subregion. The monthly ETc rates for the three Kern County subregions for WY 1993-2015 were then replaced with the monthly ETc rates calculated using ITRC-METRIC data. The annual ETc rates applied to C2VSimFG- Kern by crop are listed in Table 9. 3.7.2 Irrigation Periods The C2VSim Irrigation Periods file contains monthly parameters for each crop and subregion that indicate whether or not the crop is irrigated in that month. C2VSimFG-Beta irrigation periods for the three Kern County subregions were adjusted to match crop irrigation practices from ITRC-METRIC water usage. Refuge irrigation periods for the three Kern County subregions were also adjusted to match Kern NWR practices. Simulated irrigation water usage for the C2VSimFG-Kern better reflects observed irrigation practices. 3.8 Model Modifications In general, the scope of work was to revise the managed water supply and demand for the Kern County Subbasin. During the course of this revision, several issues were identified with the hydrogeological conceptual model and simulation parameters that affected the historical water budget. The following summarizes modifications made in C2VSimFG-Kern to improve the model performance. Other issues identified regarding the hydrogeological conceptual model, model setup and simulation parameters that were not addressed in C2VSimFG-Kern but are recommended to be modified for future model updates, are listed in Section 8.5. A summary of the changes that were made in C2VSimFG-Kern are provided below. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 14 TODD GROUNDWATER 3.8.1 Streambed Parameters In the Kern County Subbasin, the Kern River and Poso Creek are the two largest streams. Both have multiple stream gauges along their courses including ones near where they enter the Kern County Subbasin from the Sierra Nevada. These are the only two streams that are simulated in the model using the IWFM stream module. Both are predominantly losing streams where surface water recharges groundwater, except during limited periods near the major groundwater banking operations west of Bakersfield when multi-year periods of recharge operations produce high groundwater levels. As a part of the C2VSimFG-Kern update, the simulated recharge from the Kern River and Poso Creek were compared to changes in stream gauge measurements and estimated streambed losses to evaluate how well the model was simulating streambed seepage. For much of the Kern River, the amount of streambed seepage is estimated based on daily weir information and is documented in the annual Kern River Hydrographic Reports. The streambed parameters used in C2VSimFG-Beta were not providing a comparable volume and distribution of seepage along the Kern River streambed. In dry years, streamflow as not getting far enough downstream whereas in wet years the seepage was too low. Similarly, the Poso Creek streambed seepage showed similar issues based on comparisons to differences in stream gauge data along its course. To address this, the Kern River and Poso Creek streambed parameters were manually modified until a reasonable approximation of the measured streambed seepage was achieved by C2VSimFG-Kern. In general, the streambed conductance was lowered whereas the stream wetted perimeter was increased. This provided the best balance in matching the measured dry, average and wet years flows in both streams. Part of this issue is that C2VSimFG-Beta uses a simple form of the stream module in the simulation. This approach appears to work sufficiently well for the continuously flowing streams in the northern parts of the Central Valley but is not sufficient for simulating the highly variable flows that occur on the Kern River and Poso Creek. It is recommended that future revisions to C2VSimFG-Kern further evaluate issues in simulating streamflow and seepage in the Kern River and Poso Creek (see Section 8.5). This may include incorporating more advanced streamflow simulation features that are available in IWFM but that have not been utilized in C2VSimFG. 3.8.2 Small Watershed Runoff In reviewing the small watershed contributions, it was determined that the runoff was not representing the variable nature of runoff in an arid region. Although this was not part of the originally planned model revisions, it affected the model results. Todd Groundwater revised the corresponding model parameters to be more representative of the local arid conditions in Kern County. Runoff of precipitation from the surrounding small watersheds was calculated within C2VSimFG-Kern using methodology included in IWFM that is based on the SCS Curve Method (NRCS, 2004). The C2VSimFG-Beta results showed a steady baseflow that contributed water to the Kern County Subbasin continuously and did not show the appropriate variation in runoff expected between wet, average and dry years in the arid environment. Two major issues were identified and revised. First, the SCS curve number was changed to allow a higher percentage of runoff in wet years to capture the flashy nature of runoff from these watersheds during differing climatic conditions. Second, IWFM uses a localized soil moisture water budget; however, soil, ET and other parameters were set that allowed for the continuous outflow from the C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 15 TODD GROUNDWATER basins. These were changed to more appropriate values that limited baseflow from the very small watersheds while allowing baseflow from the larger watersheds. Parameters were varied to better match estimated watershed runoff from a local USGS study (Nady and Larragueta, 1983). 3.8.3 Root Zone Parameters Areas of overly high root zone hydraulic parameters led to high volumes of deep percolation that required additional groundwater pumping to meet the overall water demand for irrigation. This issue was noted by local water district staff who recognized that the groundwater pumping and deep percolation from preliminary model results were significantly higher than what was found in practice. A review found areas of overlying hydraulic conductivity and other hydraulic parameters that caused this high percolation rate. Two types of issues were found. First, very high parameters were found in parts of the basin that were not consistent with local soil data. Second, the root zone parameters for lakebed and other heavy clay soil areas were too high. These areas were manually adjusted to be more in line with observed conditions. A more rigorous development of root zone parameters should be considered in the future as this issue demonstrates that it is a sensitive parameter. 3.8.4 Land Use Modifications The agricultural land use and crop type distribution in the model for early period (1974-1990 and 1992-1996) from C2VSimFG-Beta used a regional distribution and did not accurately represent historical practices. This resulted in agricultural water use being distributed across the entire Kern County Subbasin including areas that did not have irrigated agriculture. To correct for this, land use and crop type data were modified to conform with irrigated agricultural areas in the early 1990s. The crop types were adjusted to be consistent with the Kern County Agricultural Commissioner reports for these years. This included capturing the appropriate crop types present in the Kern County Subbasin in the periods from 1974 through 1996. For example, there was a higher percentage of cotton produced during that period and a lower percentage of nut trees, which became one of the major crop types in the 2010s. 3.8.5 Westside Pumping Limits Western Kern County contains large areas with poor groundwater quality. As a result, little or no agricultural or urban groundwater pumping occurs in this area. To simulate this, groundwater pumping was turned off in C2VSim-Kern in most of the area with poor groundwater quality. However, in the Westside District Water Authority Management Area, limited groundwater pumping does occur. The poor -quality water is mixed with surface water to supplement the imported water supply. To simulate this condition, the groundwater pumping rate in the Westside District Water Authority Management Area was estimated to be 10% of the surface water deliveries, and the automated groundwater pumping adjustment in C2VSimFG-Kern was turned off for these areas. Subsequent to the completion of the historical model, GSP developers in the Westside area refined their estimate of pumping used to mix with delivered surface water to about 3,000 AFY, which is considerably lower than that used in the historical model. The Westside GSP developers included a management action to further refine the estimated groundwater use in the Westside GSP water districts. Therefore, the original assumption was left in this version of the historical model. The Westside District Water Authority Management Area GSP identifies a management action to further evaluate the groundwater pumping in their area. The results of their evaluation will be included in in future model updates. 3.8.6 Kern Wildlife Refuge pumping C2VSimFG-Beta enabled groundwater pumping in the model elements representing the Kern National Wildlife Refuge. The Kern National Wildlife Refuge Water Management Plan (USBR, 2011) indicates that C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 16 TODD GROUNDWATER during the simulation time period, the refuge was sustained entirely on imported surface water and occasional diversions of Poso Creek flood waters. No groundwater was pumped at the refuge during the simulation period 1985-2015. Groundwater pumping was used at some time in the past. Groundwater pumping and automated groundwater pumping adjustment were turned off for all model elements in the Kern National Wildlife Refuge. In addition to the Kern National Wildlife Refuge, former rice fields and other areas are currently used for sustaining ponds at private duck hunting clubs in the northwestern portion of the Kern County Subbasin. Water use data for these operations were not available during the development of the historical model. This water includes a combination of surface water and groundwater, and this volume is considered to be very small relative to the overall basin water use. GSP developers included a management action to further refine the estimated water use for these facilities that will be addressed in future updates. 3.9 C2VSimFG-Beta Modifications Minor changes were made to the C2VSimFG-Kern hydrogeological conceptual model and natural water budget components and are listed in Table 10. The architecture of the model including layering, discretization, boundary conditions, and aquifer properties was not revised. Aquifer parameters were adjusted in several areas to better match observed historical conditions, especially in areas with high historic recharge volumes such as the Kern Fan. Extremely high soil hydraulic conductivities in a small set of elements were reduced to more reasonable values. Stream -bed conductance values were modified in some stream reaches to better match simulated stream gains and losses to observed values. Minor adjustments to small watershed parameters were also made to match surface runoff to observed values. Due to the number of modifications that were identified with the hydrogeological conceptual model and aquifer parameters during the C2VSimFG-Kern update, it is recommended that a more rigorous model update be conducted that will update the hydrogeological conceptual model and aquifer parameters to be consistent with that presented in the Kern County Subbasin GSPs. In addition, further calibration of C2VSimFG-Kern is recommended to update aquifer parameters in the Kern County Subbasin. Future calibration is further discussed in Section 8.5. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 17 TODD GROUNDWATER 4. HISTORICAL AND CURRENT WATER BUDGETS FROM C2VSIMFG-KERN C2VSimFG-Kern was used to develop historical (WY1995 to WY2014) and current (WY2015) water budgets for the Kern County Subbasin. The following summarizes the simulated water budgets from C2VSimFG-Kern. A summary of these results is provided below. 4.1 Historical and Current Water Budget The simulated historical and current water budgets based on C2VSimFG-Kern are presented in Tables 11A and 11B and are presented graphically on Figures 9. Figure 10 presents the average annual historical water budget for the Kern County Subbasin. The results for the historical water budget are summarized under the following categories that are defined as: Deep Percolation — Precipitation and applied water that reaches the groundwater after simulated transport across the unsaturated zone. The simulated historical 20 -year average is a net inflow of 669,398 AFY. Managed Recharge and Canal Seepage- Combined groundwater recharge from managed aquifer recharge operations, groundwater banking, and seepage from canals and other conveyance. The simulated historical 20 -year average for Managed Recharge and Canal Seepage is a net inflow of 583,598 AFY. On Figure 10, this total is subdivided between out -of - basin groundwater banking obligations (85,965 AFY) and the remaining local recharge of 497,633 AFY. • Net Groundwater -Surface Water (GW/SW) Interactions - Net volumetric exchange of surface water and groundwater between the aquifer and streams: Positive represents a net groundwater recharge, and negative represents a net groundwater discharge to the stream. The simulated historical 20 -year average is a net inflow of 98,606 AFY. • Small Watershed Inflow — Runoff, small stream inflow and subsurface inflow from the small watersheds and areas surrounding the groundwater basin. The simulated historical 20 -year average is a net inflow of 48,760 AFY. • Groundwater (GW) Pumping - Total groundwater pumping by wells. Groundwater banking recovery pumping is specified as fixed input values and agricultural and municipal pumping is calculated by C2VSimFG-Kern based on demand minus surface water diversions. The simulated historical 20 -year average is a net outflow of 1,590,373 AFY. • Subsurface Flow with Adjacent Groundwater (GW) Basins - Net subsurface groundwater flow to and from the Kern County Subbasin with adjoining groundwater basins: negative is a net flow out of the Subbasin and positive is a net flow into the Subbasin. The simulated historical 20 -year average is a net outflow of 87,102 AFY. • Change in Groundwater Storage - Sum of the inflow components (positive numbers) plus the outflow components (negative numbers): positive is an increase in storage typified by a rise in groundwater levels whereas a negative is a decrease in storage typified by a decline in groundwater levels. The simulated historical 20 -year average is a decline in groundwater storage of 277,114 AFY. The simulated change in groundwater storage varies over the 20 -year historical period and is closely related to climatic conditions and surface water supply availability (Figure 11). During the periods C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 18 TODD GROUNDWATER WY1995 to WY1999, WY2005 to WY2006 and WY2011, the groundwater storage volume was stable to increasing and correlates to the above average rainfall and surface water availability during these times. During the periods WY2000 to WY2004, WY2007 to WY2010 and Y2012 to WY2015, groundwater storage volume decreased, correlated to periods of drought and low surface water availability. The simulated historical groundwater recharge also reflects this climatic pattern with high deep percolation to groundwater and steep increases in managed aquifer recharge and canal seepage during the above average rainfall periods and lower groundwater recharge during the drought years (Figure 12). Groundwater pumping for agriculture shows a general increasing trend from WY1995 to WY2014; however, groundwater pumping is lower in above average rainfall years and higher during droughts (Figure 13). This general increasing trend follows a comparable decreasing trend in surface water deliveries over this same period. As shown on Figure 14, surface water deliveries show a general decreasing trend from WY1995 to WY2014; however, the surface water deliveries are higher in the above average rainfall years and lower during the droughts. 4.2 Sustainable Yield Section 354.18(b)(7) of the GSP Regulations requires that an estimate of the basin's sustainable yield be provided in the GSP (or in the coordination agreement for basins with multiple GSPs). SGMA defines "sustainable yield" as: "the maximum quantity of water, calculated over a base period representative of long- term conditions in the basin and including any temporary surplus, that can be withdrawn annually from a groundwater supply without causing an undesirable result." SGMA does not incorporate sustainable yield estimates directly into sustainable management criteria. Sustainable yield is referenced in SGMA as part of the estimated basinwide water budget and as the outcome of avoiding undesirable results. Basinwide pumping within the sustainable yield estimate is neither a measure of, nor proof of, sustainability. Sustainability under SGMA is only demonstrated by avoiding undesirable results for the six sustainability indicators. 4.2.1 Determination of Sustainable Yield To determine the sustainable yield for the Kern County Subbasin, the results of the C2VSimFG-Kern model were used with two methods to estimate the amount of groundwater pumping that would avoid the undesirable result of a reduction in groundwater storage over the historical base period 1995 to 2014. The results are shown in Table 12 and are summarized below: • Sustainable Yield from Groundwater Pumping—The model results produced an average annual groundwater pumping in the Kern County Subbasin of 1,590,373 AFY with a decline in groundwater storage of 277,114 AFY. Subtracting the groundwater storage decline from groundwater pumping produced a sustainable yield of approximately 1,313,000 AFY. • Sustainable Yield from Groundwater Recharge —The model results produced an average annual groundwater recharge in the Kern County Subbasin of 1,400,362 AFY. The subsurface outflow from the GSA was estimated to be 87,102 AFY. Subtracting these outflow losses from the groundwater recharge produced a sustainable yield of approximately 1,313,000 AFY. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 19 TODD GROUNDWATER Sustainable yield estimates are part of SGMA's required basinwide water budget. In general, the sustainable yield of a basin is the amount of groundwater that can be withdrawn annually without causing undesirable results. This sustainable yield estimate can be helpful for evaluating the projects and programs needed to achieve sustainability. Although the SGMA regulations require a single value of sustainable yield calculated basinwide, it should be noted that the sustainable yield can be changed by implementation of recharge projects, variations in climate, or changes in stream flow conditions. Using WY1995 to WY2014 as the base period, C2VSimFG-Kern results show declining groundwater levels and long-term reduction of groundwater storage. During this period, average annual inflow to the aquifer is 1,400,362 AFY, and outflow is 1,677,476 AFY (Table 11A). This yields an average annual deficit of 277,114 AFY. Based on these historical C2VSimFG-Kern results, the sustainable yield of the basin is approximately 1,313,000 AFY, with an estimated level of uncertainty on the order of plus or minus 10% to 20%. 4.2.2 Native Yield Although not a SGMA requirement, the native yield is being used by Kern County GSAs for determining a portion of the groundwater allocation within the basin. The native yield is comparable to the sustainable yield except that the only recharge that is included in the calculation is the natural, unallocated portion of the groundwater recharge. For the Kern County Subbasin, this includes the groundwater recharge derived from precipitation and runoff from unallocated streams. The Kern River and Poso Creek, however, are allocated streams where specific agencies or parties have rights to specific volumes of flow. The C2VSimFG-Kern model results over the historical base period WY1995 to WY2014 was again used for estimation of native yield. The model results were used to determine the amount of precipitation recharge over irrigated agricultural areas and the native/urban/undeveloped areas. The total and average annual volume of precipitation that percolates to groundwater during the WY1995 to WY2014 base period are listed in Table 13. The basinwide contribution is the relative proportion of the runoff along the basin margins from small, unallocated watersheds and inflow from the surrounding basin margin (from areas not defined as DWR groundwater basins). The results of this assessment based on the C2VSimFG-Kern results are shown in Table 13 and are summarized below: • The volume of precipitation that recharges the groundwater in the irrigated agricultural areas is 77,780 AFY. • The volume of precipitation that recharges groundwater in the other areas is 132,981 AFY. The volume of inflow from unallocated small watersheds that recharges the groundwater in the irrigated agricultural areas is 48,760 AFY. Totaling these inputs results in a native yield for the Kern County Subbasin of 259,520 AFY. The annual contribution per acre of approximately 0.144 acre-feet per acre is estimated by dividing the average annual contribution by the total area of the Kern County Subbasin (Table 13). Similar to the sustainable yield, the native yield at this time is based on the available data. However, as data gaps are eliminated and management actions/plans are implemented, the native yield could change, and any changes to native yield will be included in future GSP amendments. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 20 TODD GROUNDWATER 4.2.3 Application of Sustainable and Native Yield In general, the sustainable yield of a basin is the amount of groundwater that can be withdrawn annually without causing undesirable results. The native yield is comparable to the sustainable yield except that the only recharge that is included in the calculation is the natural, unallocated portion of the groundwater recharge. The following estimates of the Kern County Subbasin sustainable and native yields are derived from the C2VSimFG-Kern historical model results for the purpose of supporting GSP assessment of the types and magnitude of projects and programs needed to achieve sustainability. The C2VSimFG-Kern estimates of sustainable and native yield presented here are based on available data and the current level of model calibration. Therefore, these estimates are considered appropriate as guides to SGMA planning. However, the C2VSimFG-Kern sustainable and native yield estimates are initial water budget estimates that are not intended for determination of individual landowner allocations or groundwater rights. Additional technical and legal analysis, along with stakeholder involvement, is necessary to fully quantify the sustainable and native yields. 5. APPROACH FOR PROJECTED FUTURE WATER BUDGETS Projected future Baseline water budgets for the Kern County Subbasin were developed using the C2VSimFG-Kern. These projected water budgets establish expected Baseline conditions to evaluate the impacts of GSP implementation. Three predictive scenarios were developed for the Kern County Subbasin, each representing a different expected future hydrologic condition, by adapting C2VSimFG- Kern as follows: • Future Baseline Conditions: Repeat historical hydrology with expected future water supply, • 2030 Climate Conditions: Adjust historical hydrology for 2030 climatic conditions and expected water supply, and • 2070 Climate Conditions: Adjust historical hydrology for 2070 climatic conditions and expected water supply. Projected future water budgets were developed for Baseline conditions and expected 2030 Climate Conditions and 2070 Climate Conditions over a 50 -year planning and implementation horizon. These scenario models provide a basis of comparison for evaluating proposed sustainability management actions and projects over the SGMA planning and implementation horizon. 5.1 Assumptions C2VSimFG-Kern was modified to incorporate projected future hydrology and land use using analog data from the historical C2VSimFG-Kern model. This approach meets GSP requirements using: • A 50 -year time -series of historical precipitation, evapotranspiration and stream flow information as the future Baseline hydrology conditions, • The most recent land use, METRIC -based evapotranspiration, crop coefficient and urban population growth information as the Baseline condition for estimating future water demands, The most recent water supply projections as the Baseline condition for estimating future surface water supply, C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 21 TODD GROUNDWATER • DWR Climate Change Guidance and Data Sets to incorporate estimated climate change conditions for the Kern County Subbasin, • Specialized analysis of the Kern River watershed and estimated runoff volumes under climate change conditions, • Specialized analysis of CVP deliveries to Kern County under climate change conditions incorporating implementation of the San Joaquin River Restoration Program, and • Specialized analysis of SWP deliveries to Kern County under climate change conditions incorporating implementation of the OCAP Biological Opinion and recent changes in Table A and Article 21 allocations. 5.2 Projected Future SGMA Projects Projected water budgets for the Kern County Subbasin were developed using the C2VSimFG-Kern to evaluate the performance of proposed management actions with respect to achieving groundwater sustainability. Participating agencies provided a list of projected future management actions to be implemented between WY2021 and WY2040. These projects were simulated under Baseline conditions, 2030 Climate Conditions and 2070 Climate Conditions through WY2070 using the C2VSimFG-Kern. Proposed future projects and management actions were provided by GSAs. The types of proposed SGMA projects and management actions are summarized as follows: • Demand Reduction is the volume of water reduced by changing the land use; these include: o Agricultural demand reduction projects through incentives or actions to reduce crop water use, o Fallowing of agricultural land and conversion of agricultural land to recharge basins, and o Conversion of agricultural land to urban land. New Supply groups together planned increases in imported water supplies; these include: o Increased surface water imports generally resulting from projected water purchases, o New water conveyance facilities including pipelines and reservoirs to increase flexibility, and o Expansion of surface water delivery areas to reduce groundwater usage. • Other Supply groups together proposed projects to increase local water supplies; these include: o Recharging treated waste waters derived from both urban areas and oil production operations; increased recharge occurs in both existing and new locations, o Increased stream flow diversions; these include exercising riparian water rights and diverting flood flows, o Reallocation of water; generally reducing sales of surface water and banked groundwater and using this water within the agency, and o Brackish groundwater in areas not currently overdrafted will be treated and mixed with surface water to augment surface water supplies. Some management actions are implemented gradually over many years, with savings increasing each year over the implementation period. Some management actions are implemented only in certain years (wet years, for example). The anticipated average -annual water supply benefit of the proposed SGMA projects and management actions steadily increases over the 20 -year period from WY2021 to WY2040 to represent the implementation of the Kern County Subbasin GSPs. This increasing trend, as shown as C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 22 TODD GROUNDWATER the average -annual water supply benefit over five-year increments on Figure 15, is summarized as follows: • about 116,000 AFY over the first five-year period (WY2021-WY2025), • about 216,000 AFY over the second five-year period (WY2026-WY2030), • about 343,000 AFY over the third five-year period (WY2031-WY2035), and • about 361,000 AFY over the fourth five-year period (WY2036-WY2040). The anticipated water supply benefit of the proposed SGMA projects and management actions included in the C2VSimFG-Kern projected future simulations is 422,000 AFY over the period from WY2041 to WY2070. Benefits of implementing these projects and management actions over the 20 -year implementation period are summarized in Figure 15. 6. PROJECTED FUTURE BASELINE DEVELOPMENT Projected water budgets are required by GSP regulations to represent future conditions over a 50 -year GSP planning and implementation horizon. A Baseline condition was developed that projects water supply, demand and operations based on current land use and expected water supply availability over 50 years. The Baseline then serves as a basis of comparison for evaluating proposed sustainability management actions and projects for achieving sustainability over the planning and implementation horizon. Each predictive scenario model simulates the 50 -year planning and implementation period WY2021 to WY2070. Development of the projected future Baseline conditions is summarized below. 6.1 Projected Future Time Period Development WY1995 to WY2014 was chosen as a historical hydrology period because detailed demand and supply data are available for this period, and most Subbasin water delivery infrastructure was fully developed by the middle of this period. The average Kern River inflow for this period is also very close to the long- term average Kern River inflow. The projected future simulation period is based on repeating the WY1995 to WY2014 historical study period. This period is only 20 years long, so a 50 -year sequence of historical hydrology was developed by repeating data from this period in the sequence as shown in Table 14. The development of this sequence is summarized as follows: • Simulation period WY2021 to WY2032 used the historical period WY2003 to WY2014, • Simulation period WY2033 to WY2052 used the historical period WY1995 to WY2014, and • Simulation period WY2053 to WY2070 used the historical period WY1995 to WY2012. This sequence was developed to match long-term average flows on the Kern River, and to ensure that the Baseline does not end in an extreme drought or extreme wet year. By starting the projected future simulation time sequence with WY2003, the 50 -year hydrology period has approximately 100 percent of the long-term average streamflow conditions on the Kern River, as indicated by an average annual Kern River Index of 100 percent. The sequence includes the appropriate range of hydrologic conditions including extremely wet years and extended periods of drought. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 23 TODD GROUNDWATER C2VSimFG-Kern simulation results for the last timestep of the historical simulation (September 30, 2015) were used as initial conditions for all projected future simulations, including initial conditions for the root zone, saturated and unsaturated aquifer zones, and small watersheds. Since the historical C2VSimFG-Kern simulation period ends with WY2015, all projected future scenarios also include estimated hydrology for WY2016 to WY2020. Model input data for WY2016 to WY2020 was developed by repeating model input data for recent years based on correlation with the San Joaquin Index (DWR, 2019). 6.2 Development of Key Baseline Data Sets Key required components for the Projected Future Baseline, as summarized in the DWR Water Budget Best Management Practices guidance document (DWR, 2016B) include the following: • The projected Baseline hydrology conditions were developed using 50 -years of historical precipitation and streamflow following the sequence outlined in Section 6.1. • Surface water supplies are based on available information from DWR and others to project future water imports from the SWP, CVC - Friant-Kern Canal (FKC) and Kern River diversions. For the Kern River, recent diversion practices based on entitlements were used to develop water use consistent with the Baseline hydrology. • WY2013 land use was used as current land use for all scenarios as drought conditions likely reduced agricultural production in WY2014 and WY2015. • Consumptive use for agriculture and undeveloped lands was based on the recent land use and METRIC -based evapotranspiration. Following DWR guidance, METRIC data over the Baseline period was varied according to varying hydrologic conditions (e.g., water year type). • Urban water demand was based on projections from recent urban water management plans to meet regulations for future water use. Urban demand was estimated in the model based on projected urban population growth and per capita water demand information (including recent regulatory guidance). • Small watershed inflows used the same parameters as the historical C2VSimFG-Kern model; however, volumes varied based on changes in the precipitation and ET under the 2030 and 2070 climate change conditions. Time -series input data were first developed for the Baseline scenario model for WY2021 to WY2070. Development of this time -series input data generally involved repeating time -series data from the historical C2VSimFG-Kern in the appropriate sequence. The following time -series data were developed for each scenario: • Precipitation rates, • Evapotranspiration rates, • Surface water inflow rates, • Surface water diversion and delivery rates, and • Specified groundwater pumping rates. Baseline scenario model time -series data files were then modified following DWR guidelines to produce time -series input data for the 2030 Climate Conditions and 2070 Climate Conditions scenario models. C2VSim input data were modified only in Kern County. C2VSim input data for areas outside of Kern County were not modified. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 24 TODD GROUNDWATER The baseline data sets were incorporated into the model files to develop the projected future water demand and supply under Baseline, 2030 Climate and 2070 Climate conditions. A summary of the development of the projected future water demand and supply is discussed below. 6.3 Projected Future Water Demand The projected future water demand was developed using fixed WY2013 land use areas with historical evapotranspiration rates for the Baseline and modified evapotranspiration rates for the 2030 and 2070 climate scenarios and increasing urban populations. 6.3.1 Agricultural Water Demand Evapotranspiration rates for the Baseline scenario model were developed by repeating input evapotranspiration rates from C2VSimFG-Kern in the appropriate sequence. DWR provided monthly change factors for ETo values under 2030 and 2070 central tendency climatic conditions on a 6 km x 6 km VIC grid for calendar years 1915 through 2011. The VIC grid IDs for each C2VSim subregion in the Kern County Subbasin Zone of Interest were identified and area weighted monthly ETo change factors were calculated for each subregion. Baseline scenario ETc rates for each subregion were then multiplied by the appropriate area -weighted ETo change factors to produce time -series ETc rates for the 2030 Climate Conditions and 2070 Climate Conditions scenarios. Factors for calendar years 1959-1961 were used as analogs for calendar years 2012-2014. 6.3.2 Urban Water Demand Urban water demand calculations include an indoor component and an outdoor component. Indoor urban water demands are based on the urban population and monthly per capita water demand. Future urban populations for Kern County urban areas were estimated using California Department of Finance population projections. Future per capita urban water demands were estimated using projections from urban water management plans and California urban water conservation regulations, including SB 606 and AB 1668. Future outdoor urban water demands are based on ETc rates, which were modified as described in the Agricultural Water Demand section above. 6.3.3 Groundwater Banking Recovery Future groundwater banking recovery rates were developed by repeating historical recovery rates in the appropriate sequence. No adjustments were made to Baseline rates or to rates for 2030 and 2070 climatic conditions. 6.4 Projected Future Water Supply Projected future precipitation, stream inflow and surface water import time series were developed following DWR guidelines. Baseline future water supplies were developed by repeating historical values in the appropriate sequence. Surface water diversions were then adjusted to account for operational changes. Baseline water supplies were then modified to simulate 2030 and 2070 central tendency climatic conditions. 6.4.1 Precipitation Rates Precipitation rates for the Baseline scenario model were developed by repeating input precipitation rates from C2VSimFG-Kern in the appropriate sequence. DWR provided monthly change factors for precipitation under 2030 and 2070 central tendency climatic conditions on a 6 km x 6 km VIC grid for calendar years 1915 through 2011. The VIC grid ID for each C2VSim element in the Kern County Subbasin Zone of Interest was identified and the Baseline scenario precipitation rates were multiplied by C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 25 TODD GROUNDWATER the appropriate factors to produce time -series precipitation rates for the 2030 Climate Conditions and 2070 Climate Conditions scenarios. Factors for calendar years 1959-1961 were used as analogs for calendar years 2012-2014. 6.4.2 Surface Water Inflow Rates Surface water inflow rates for Poso Creek and White River for the Baseline scenario model were developed by repeating input inflow rates from C2VSimFG-Kern in the appropriate sequence. DWR provided unimpaired streamflow change factor datasets for Central Valley streams, and an Excel spreadsheet tool to modify basin unimpaired streamflow using these change factors. The unimpaired streamflow change factors and spreadsheet were used to modify Baseline inflows to produce 2030 Climate Conditions and 2070 Climate Conditions scenario time series inflows for Poso Creek and White River. Surface water inflow rates for Kern River at First Point for the Baseline scenario model were developed by repeating historical inflow rates from C2VSimFG-Kern in the appropriate sequence. Flows on the Kern River are regulated, so the unimpaired streamflow method was not appropriate for estimating future flows under 2030 and 2070 climatic conditions. Projected Kern River flows at First Point under 2030 and 2070 central tendency conditions were estimated by GEI (2018) for calendar years 1956-2010 hydrology. This analysis considered the impacts of changed runoff in each sub -watershed contributing to the Kern River to develop revised streamflow estimates for Kern River at First Point. Future scenario Kern River at First Point flows for calendar years 2011-2014 were estimated using flows for analog years with similar annual flows and monthly flow pattern. Analog years 1986, 1991, 1990 and 1961 respectively were used for 2011-2014 in the future scenarios. 6.4.3 Surface Water Deliveries Surface water delivery rates for the Baseline scenario model were developed by first repeating input surface water delivery rates from the C2VSimFG-Kern in the appropriate sequence, and then modifying selected data sets. Surface water deliveries from in -basin sources such as Oil Field Recovery were held constant at WY2015 rates for all future scenarios. The Kern County Subbasin is served by both the CVP and the SWP. Recent changes in CVP and SWP operations and their impacts on future surface water supplies are reflected in surface water diversion rates for the three scenarios. Future CVP deliveries will be affected by implementation of the San Joaquin River Restoration Program (SJRRP) that included the 2008 U.S. Fish & Wildlife Service biological opinion (BO) on the Long -Term Operational Criteria and Plan (OCAP) for coordination of the CVP and SWP. Future SWP deliveries will be affected by operational changes implemented between 2004 and 2008 including the OCAP BO, reduced Table A contract amounts and reduced Article 21 deliveries. DWR provided projected future deliveries from the CVP and SWP for WY1922 to WY2003, derived from CalSim-II modeling conducted for the Water Supply Investment Program (WSIP) (California Water Commission, 2016). DWR's CVP projections as provided do not fully incorporate these SJRRP operational changes. DWR's SWP delivery projections do not include the OCAP BO operational constraints, the reduced Table A amounts and reduced Article 21 water. Future CVP delivery projections developed by the Friant Water Authority (FWUA) were used in place of DWR's CVP projections. FWUA (2018) used CalSim-II to develop projected surface water deliveries with SJRRP implementation under hydrological conditions representing the Current Baseline, 2030 and 2070 climate conditions by delivery class for WY1922 to WY2003, and estimated allocations to each CVP contractor. The 2015.c data set was used for Baseline scenario CVP deliveries, the 2030.c data set was C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 26 TODD GROUNDWATER used for 2030 Climate Conditions scenario CVP deliveries, and the 2070.c data set was used for the 2070 Climate Conditions scenario CVP deliveries. CVP deliveries for WY2004 to WY2014 were estimated using deliveries for analog years WY1951 to WY1961; these analog years have a similar distribution of water availability. The SWP projections provided by DWR for WY1995 to WY2003 and historical deliveries for WY2004 to WY2014 were modified to incorporate the impacts of SWP operational changes in the three scenarios. 2019 SWP Table A contract amounts were used to allocate these SWP deliveries to individual districts. In summary: Baseline Hydrologic Conditions o WY1995 to WY2003 conditions are based on 2030 -Level CALSIM increased by 3.03 o WY2004 to WY2007 conditions are based on historical data adjusted for OCAP BO, and o WY2008 to WY2014 conditions are based on historical data with the assumption that OCAP BO adjustments are already factored into the data. • 2030 Climate Change Hydrologic Conditions o WY1995 to WY2003 conditions are based on the 2030 -Level CALSIM Projection, o WY2004 to WY2007 conditions are based on OCAP BO adjustment reduced by 3.03 and o WY2008 to WY2014 conditions are based on historical data reduced by 3.03%. • 2070 Climate Change Hydrologic Conditions o WY1995 to WY2003 conditions are based on the 2070 -Level CALSIM Projection, o WY2004 to WY2007 conditions are based on OCAP BO adjustment reduced by 8.09%, and o WY2008 to WY2014 conditions are based on historical data reduced by 8.09%. Within the Kern County Subbasin, water users engage in complex real-time water trading and wheeling activities to maximize water utilization, minimize waste and energy consumption, and meet immediate water needs. It would be difficult to project future surface water deliveries in the Kern County Subbasin without the use of a surface water allocation model that simulates these water trading and wheeling activities. Therefore, for this modeling effort, monthly future scenario agricultural, urban and recharge deliveries from sources originating outside the basin were estimated by adjusting historical deliveries by the ratio of (total scenario inflows)/(total historical inflows) for each month, where total inflows are the sum of CVP deliveries, SWP deliveries and Kern River at First Point. In addition, Kern River at First Point flows above historical flows under the 2030 Climate Conditions and 2070 Climate Conditions scenarios were proportionally added to selected recharge deliveries. This method is deemed adequate for subbasin-level future scenario analyses. Some future scenario data sets did not cover the entire period from October 1994 through September 2014. In these cases, data from an analog historical period with similar water availability was used to fill in the missing data. The analog years for each data type are summarized as: • For CVP deliveries (CalSim-II data), WY1951 to WY1961 were used as analogs for missing WY2004 to WY2014 data; these analog years have a similar distribution of water availability. • Projected future Kern River at First Point flows for calendar years 1986, 1991, 1990 and 1961 were used as analogs to missing calendar years 2011 through 2014; each of these analog years had a similar historical annual flow volume and monthly distribution. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 27 TODD GROUNDWATER • For climatic data adjustment factors, calendar years 1959-1961 were used as analogs to missing calendar years 2012-2014. 6.5 Development of Climate Change Conditions Input data for the C2VSimFG-Kern were modified to simulate three future climatic scenarios. Historical precipitation, evapotranspiration, land use, population, surface water inflow and surface water delivery rates were replaced with projected future values for WY2016 to WY2070 for Future Baseline Conditions. The Future Baseline Conditions for WY2021 to WY2070 were then modified to simulate 2030 Climate Conditions and 2070 Climate Conditions. Water management agencies in the Kern County Subbasin provided a broad suite of proposed water management and conservation projects to increase water supplies and reduce water management demands. These projects are added to the C2VSimFG-Kern to assess the long-term impacts of these projects under the Baseline, 2030 Climate Conditions and 2070 Climate Conditions scenarios. Projected water budgets under Future Baseline Conditions, 2030 and 2070 Climate conditions are used to evaluate the potential effects of future Baseline and extended dry conditions with respect to achieving sustainability. DWR published a Modeling Best Management Practices Guidance Document (DWR, 2016B) that outlines DWR recommendations for developing and running predictive scenarios. The C2VSimFG-Kern was modified following these recommendations to develop the Baseline scenario model. DWR also issued the Guidance for Climate Change Data Use During Sustainability Plan Development Guidance Document (DWR 2018A) that outlines how DWR recommends that climate change be addressed under SGMA. Baseline scenario data sets were modified using DWR climate change data sets for Kern County following procedures outlined in the guidance documents to develop the 2030 Climate Conditions and 2070 Climate Conditions scenario models. The adjustment factors for Baseline, 2030 Climate Change and 2070 Climate Change for SWP deliveries were developed based on consistent CalSim operations studies at current, 2030 and 2070 climate levels developed for Bay Delta Conservation Plan evaluation and provided by DWR Bay Delta Office staff. The WSIP studies provided on DWR's SGMA web site were not used due to the unavailability of a Baseline study with assumptions consistent with the 2030 and 2070 climate change studies. 6.6 Groundwater Banking Assumptions Groundwater banking operations are simulated in the C2VSimFG-Kern with surface water diversions to recharge basins and specified pumping rates for groundwater extractions. All surface water deliveries were adjusted under the Baseline, 2030 Climate Conditions and 2070 Climate Conditions scenarios. Surface water deliveries to recharge basins were first adjusted by the same ratio as other surface water deliveries, then increased if Kern River flows were greater than historical flows. Specified pumping rates for groundwater extraction were not modified. The out -of -basin banking obligations were assumed to follow a similar pattern where groundwater banking recharge would be affected by the limitation on surface water deliveries, but that banking recovery would remain similar to historical volumes. Therefore, the historical groundwater banking obligations were adjusted under the Baseline, 2030 Climate Conditions and 2070 Climate Conditions scenarios by the same percentage as the surface water deliveries; however, the groundwater banking recovery was assumed to remain the same. Based on the historical banking obligations and using that as a foundation going forward, no banking partner has ever requested the full amount of the water banked at any particular time even in the most recent drought years. All the banking obligation C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 28 TODD GROUNDWATER agreements require limitations on amounts to be requested and delivered as well as "leave in" amounts that remain in the Kern County Subbasin. This historical management of banking obligations provides the Kern County Subbasin more flexibility for use of water as well as delivery of the obligations. For the projected future scenarios, the out -of -basin banking obligations were calculated as follows: • For the Baseline scenarios, the out -of -basin banking obligations were calculated as 69,632 AFY based on surface water deliveries of about 81% of historical deliveries. • For the 2030 Climate scenarios, the out -of -basin banking obligations were calculated as 67,913 AFY based on surface water deliveries of about 79% of historical deliveries. • For the 2070 Climate scenarios, the out -of -basin banking obligations were calculated as 64,474 AFY based on surface water deliveries of about 75% of historical deliveries. Tracking of banked groundwater obligations was done using the same post processing process as applied to the historical groundwater assessment by assigning the portion of the groundwater recharge as an out -of -basin banking obligation. 7. PROJECTED FUTURE C2VSIMFG-KERN SIMULATION RESULTS The C2VSimFG-Kern was run for three scenarios that estimate hydrologic conditions of Baseline, 2030 Climate Conditions and 2070 Climate Conditions scenarios both with and without the proposed SGMA projects and management actions for a total of six projected future scenarios. 7.1 Projected Future Water Budgets C2VSimFG-Kern calculates water budget components each month of the simulation period for each future scenario. Projected future water budgets developed based on the C2VSImFG-Kern simulation results with the proposed SGMA management actions were then compared to results for the future scenarios without the management actions to assess how these changes enhance groundwater sustainability within the Kern County Subbasin. The average annual value of each water budget component summarizes the impacts over 50 years with current water demands. The water budget results for the six Projected Future Scenarios are presented in Tables 16 through 21, and include averages over three different periods, which include: • WY2021 to WY2040 — Implementation Period representing the 20 -year period required by the SGMA regulations to implement projects and management actions to achieve sustainability. • WY2041 to WY2070 — Sustainability Period representing the 30 -year hydrologic period following the Implementation Period to assess the long-term sustainability of the proposed projects and management actions with variable climatic conditions including periods with above average rainfall and extended droughts. • WY2021 to WY2070 — Simulation Period representing the entire 50 -year projected future hydrologic conditions. Changes to surface water diversions under the proposed projects and management actions included monthly increases or reductions to 37 model diversions and the addition of 7 new diversions. Ten new groundwater pumping wells were added to simulate a new groundwater pumping program. Agricultural C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 29 TODD GROUNDWATER land use was converted to native vegetation in ten management areas, and to urban land use in three management areas. The projects and management actions included in the C2VSimFG-Kern scenarios with SGMA projects are described in the individual GSPs and management area plans. These changes were applied to a series of six C2VSimFG-Kern scenarios for Baseline, 2030 Climate Conditions and 2070 Climate Conditions both with and without SGMA projects. The results of these simulations are summarized in Table 15 below. Baseline simulation results indicate that the Kern County Subbasin has an average annual overdraft of 324,326 AFY. By implementing the proposed projects and management actions, the Subbasin is forecasted to achieve sustainability by 2040 with an estimated 42,144 AFY of annual surplus. With adjustments to account for limitations in the simulation (discussed in Section 7.2.1), the adjusted change in storage increases to 85,578 AFY. Collectively, the C2VSimFG-Kern simulation results indicate that the currently proposed SGMA projects and management actions, once fully implemented, provide a reasonable approach to achieve sustainable management of the groundwater basin and can be adaptively managed to meet future challenges as necessary. A brief summary of each of the six projected future water budgets from C2VSimFG-Kern is provided below. Table 15: Summary of Simulated Change in Groundwater Storage Results over the 2041 to 2070 Sustainability Period Historic -277,114 -277,114 Baseline -324,326 -324,326 Baseline with Projects 42,144 85,578 2030 Climate Change -380,900 -372,120 2030 Climate with Projects -12,861 46,829 2070 Climate Change -489,828 -472,336 2070 Climate with Projects -118,273 -45,969 7.1.1 Baseline Condition Water Budgets The Baseline Scenarios simulate how the Kern County Subbasin aquifer would respond if the recent hydrology were repeated with current expected surface water availability and current land use. The Baseline Scenarios were run both with and without SGMA projects. For the Baseline Scenario without SGMA Projects, the groundwater budget for WY2021 to WY2040 (Table 16) repeats the 20 -year historical hydrologic period so it provides a direct comparison of the differences between the projected future Baseline without SGMA Projects and the historical condition. The primary difference between historical conditions and the projected future Baseline is a nearly 20% decrease in imported surface water deliveries primarily from the SWP due to the OCAP Biological C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 30 TODD GROUNDWATER Opinion. This is replaced with additional groundwater pumping. As a result, total net aquifer outflows increase by about 20,200 AFY and total net aquifer inflows decrease by about 76,500 AFY. This is mostly because of increased groundwater pumping and decreased managed aquifer recharge due to a decline in imported SWP water. Over this period, the average groundwater pumping is 1,581,000 AFY, which includes agricultural pumping, urban pumping and exported water. This results in an additional loss of groundwater storage of about 56,300 AFY over the 50 -year projected future Baseline period. The Baseline Scenario with SGMA Projects simulates the proposed SGMA projects and management actions (Section 5.2) applied to the Baseline Scenario. No other changes were made except for the addition of the SGMA projects to provide a direct comparison of the relative benefits of about 422,000 AFY of proposed SGMA projects and management actions. The groundwater budget for the Baseline Scenario with SGMA Projects is provided in Table 17. Comparing the groundwater budget for WY2041 to WY2070 (Table 17) with the same period from the Baseline Scenario (Table 16) provides an evaluation of groundwater conditions after the SGMA projects and management actions have been fully implemented. As a result, total net aquifer inflows increase about 135,400 AFY due to increased managed aquifer recharge and deep percolation. The total net aquifer outflows decrease about 231,100 AFY due mostly to decreased groundwater pumping with agricultural demand reduction management actions. The change in groundwater storage for the Baseline Scenario with SGMA Projects improves by about 366,500 AFY compared to the Baseline Scenario without SGMA Projects. This change results in a net gain in groundwater in aquifer storage over the WY2041 to WY2070 sustainability period of about 42,100 AFY. A comparison of the annual change in groundwater storage over the 50 -year hydrologic period is presented in Figure 16. The time series shows that change in groundwater storage has stabilized to slightly increasing over the period from WY2041 to WY2070. A comparison of the average annual water budget components for the two different Baseline Scenarios is presented in Figure 17. Over the WY2041 to WY2070 period, the average groundwater pumping of 1,354,000 AFY for the Baseline Scenario with SGMA Projects (which includes agricultural pumping, urban pumping and exported water) is over 270,000 AFY less than in the Baseline Scenario. 7.1.2 2030 Climate Change Water Budgets The 2030 Scenarios simulate how the Kern County Subbasin aquifer would respond assuming hydrologic conditions representing a potentially drier climate and are based on the DWR Climate Change Guidance and Resource Guide (DWR, 2018A and 2018B). The 2030 DWR climate change factors were applied to the Baseline Scenario conditions. Additional adjustments were made to the imported surface water supplies from the SWP, CVP and Kern River, accounting for about an additional 2% decrease from the Baseline Conditions. The 2030 Climate Change Scenarios were run both with and without SGMA projects. Results for climate change budgets are illustrated in Figures 18, 19, and 20. The groundwater budget for the 2030 Climate Scenario without SGMA Projects for WY2041 to WY2070 (Table 18) is compared the same period for the Baseline Scenario without SGMA Projects to assess the relative change due to the climate change assumptions. The results show a net increase in aquifer inflows of about 44,700 AFY, however, the aquifer net outflows increase by about 101,200 AFY. This is mostly attributed to the climate shift to earlier rainfall making more surface water available for managed aquifer recharge during the winter but less available for irrigation in the summer, resulting in higher groundwater pumping. The net change in groundwater storage is an additional decline of about 56,600 AFY due to the climate change impacts. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 31 TODD GROUNDWATER The 2030 Climate Scenario with SGMA Projects simulates the proposed SGMA projects and management actions (Section 5.2) applied to the 2030 climate change conditions. No other changes were made to this scenario. The groundwater budget for the 2030 Climate Scenario with SGMA Projects is provided in Table 19. Comparing the groundwater budget for WY2041 to WY2070 (Table 18) between the two 2030 Climate Scenarios, the total net aquifer inflows increase about 118,700 AFY due to increased managed aquifer recharge and deep percolation. The total net aquifer outflows decrease about 249,300 AFY due mostly to decreased groundwater pumping with agricultural demand reduction management actions. The change in groundwater storage for the 2030 Climate Scenario with SGMA Projects improves by about 368,000 AFY. This change results in a net decline in groundwater in aquifer storage over WY2041 to WY2070 of about 12,900 AFY. A comparison of the annual change in groundwater storage over the 50 -year hydrologic period is presented in Figure 20. The time series shows that change in groundwater storage has stabilized to slightly increasing over the period from WY2041 to WY2070, but at a level below the results for the Baseline Scenario with SGMA Projects. A comparison of the average annual water budget components for the two 2030 Climate Scenarios is presented in Figure 18. Over this period, the average groundwater pumping of 1,444,000 AFY for the 2030 Climate Scenario with SGMA Projects, which includes agricultural pumping, urban pumping and exported water, is over 290,000 AFY less than in the 2030 Climate Scenario without SGMA Projects. 7.1.3 2070 Climate Change Water Budgets The 2070 Scenarios simulate how the Kern County Subbasin aquifer would respond assuming hydrologic conditions representing a potentially very dry climate and are based on the DWR Climate Change Guidance (DWR, 2018A and 2018B). The 2070 DWR climate change factors were applied to the Baseline Scenario Conditions. Additional adjustments were made to the imported surface water supplies from the SWP, CVP and Kern River, and these accounted for an additional 6% decrease from the Baseline Conditions. The 2070 Climate Change Scenarios were run both with and without SGMA Projects. The groundwater budget for the 2070 Climate Scenario without SGMA Projects over WY2041 to WY2070 (Table 20) is compared the same period for the Baseline Scenario without SGMA Projects to assess the relative change due to the climate change assumptions. The results show a net increase in aquifer inflows of about 66,100 AFY, however, the net aquifer outflows increase by about 231,600 AFY. This is mostly attributed to an even greater climate shift to earlier rainfall making more surface water available for managed aquifer recharge during the winter but less available for irrigation in the summer resulting in higher groundwater pumping. The net change in groundwater storage is an additional decline of about 165,500 AFY due to the climate change assumptions. The 2070 Climate Scenario with SGMA Projects simulates the proposed SGMA projects and management actions (Section 5.2) applied to the 2070 climate change conditions. No other changes were made to this scenario. The groundwater budget for the 2070 Climate Scenario with SGMA Projects is provided in Table 21. Comparing the groundwater budget for WY2041 to WY2070 (Table 20) between the two 2070 Climate Scenarios, the total net aquifer inflows increase about 106,300 AFY due to increased managed aquifer recharge and deep percolation. The total net aquifer outflows decrease about 265,300 AFY due mostly to decreased groundwater pumping due to agricultural demand reduction management actions. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 32 TODD GROUNDWATER The change in groundwater storage for 2070 Climate Scenario with SGMA Projects improves by about 371,600 AFY. This change results in a net decline of groundwater in aquifer storage over WY2041 to WY2070 of about 118,300 AFY. A comparison of the annual change in groundwater storage over the 50 -year hydrologic period is presented in Figure 20. The time series shows that change in groundwater storage has stabilized to slightly increasing over the period from WY2041 to WY2070, but at a level below the results for the Baseline and 2030 Scenarios with SGMA Projects. A comparison of the average annual water budget components for the two different 2070 Climate Scenarios is presented in Figure 19. Over this period, the average groundwater pumping of 1,559,000 AFY for the 2070 Climate Scenario with SGMA Projects, which includes agricultural pumping, urban pumping and exported water, is over 307,000 AFY less than in the 2070 Climate Scenario without SGMA Projects. 7.2 Projected Future Sustainability Assessment To assess the sustainability of the proposed GSP plans, the C2VSimFG-Kern model future scenario input files were modified to incorporate all the proposed SGMA projects and management actions. 7.2.1 Change in groundwater storage Groundwater sustainability for the Kern County Subbasin was assessed using annual changes in groundwater storage. As discussed in Section 7.1, the decline in groundwater storage of the three future Baseline scenarios is significantly mitigated by the implementation of the proposed SGMA projects and management actions. An assessment of the projected future groundwater storage change for the six projected future scenarios is summarized in Table 22. The Change in Groundwater Storage presented in Table 22 provides the net difference in aquifer inflows and outflows without consideration of subsurface flow to and from adjacent groundwater basins. This provides a measure of the natural and managed water supply within the groundwater basin without being influenced either positively or negatively by the subsurface flow. For the Kern County Subbasin, the net operational flow differs from the change in groundwater storage by about 50,000 to 75,000 AFY for the scenarios without SGMA projects, indicating that most of the groundwater storage change is due to conditions within the basin. The Adjustments to Groundwater (GW) Storage Change are made to account for limitations in either the underlying conceptual model of C2VSimFG-Kern or the setup of the projected future scenarios. The two adjustments made to the projected future water budgets include: Adjustment for Excess Basin Outflows is the difference in simulated basin outflow that is attributed to addition of SGMA projects in Kern County without comparable SGMA projects added to adjacent basins. Adjustment assumes that this difference is due to limitation of the simulation, and that this difference would remain in Kern County Subbasin when SGMA projects from adjacent basins are included in the simulation. • Adjustment for Excess Kern River Outflow is the increase in simulated groundwater outflows to the Kern River relative to Baseline condition that are attributed to SGMA projects and climate change. The model is not optimized for river management. Because the Kern River is a highly managed system, the assumption is that in practice this water would be recovered for beneficial use and not allowed to flow from the basin. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 33 TODD GROUNDWATER These adjustments resulted in an overall improvement in the change in groundwater storage for the projected future water budgets. For the scenarios that include the SGMA Projects, the change in groundwater storage improves by 43,400 AFY (Baseline), 59,700 AFY (2030 Climate Change), and 72,300 AFY (2070 Climate Change). As a result of these adjustments, the adjusted change in groundwater storage for the three scenarios with SGMA Projects varied as follows: • the Baseline Scenario with SGMA Projects changes from an increase of 42,100 AFY to an increase of 85,600 AFY. • the 2030 Climate Scenario with SGMA Projects changes from a decline of 12,900 AFY to an increase of 46,800 AFY. • the 2070 Climate Scenario with SGMA Projects changes from a decline of 118,000 AFY to a decline of 46,000 AFY. These adjustments indicate areas of improvement for C2VSimFG-Kern. Future updates to the model will address how to better simulate these conditions directly to limit the use of post -simulation adjustments. 7.2.2 Sustainability Assessment As defined by SGMA, the sustainable yield of a basin is the amount of groundwater that can be withdrawn annually without causing undesirable results. Although the SGMA regulations require that a single value of sustainable yield must be calculated basinwide, it should be noted that the sustainable yield can be changed with implementation of recharge projects, variations in climate, or changes in stream flow conditions. For the projected future scenarios, both the climate and the managed water supply operations are significantly affected which would lead to a change in the sustainable yield for the basin. For the sustainability assessment, the sustainable yield was recalculated using the method described in Section 4.2, and the results are presented in Table 23. Without the SGMA projects and management actions, the percentage of the Average Annual Difference to the total groundwater pumping provides context to compare the significance of the level of groundwater pumping for the basin. For the scenarios without SGMA projects and management actions, the groundwater pumping exceeds the sustainable yield on the order of 25% to 34% (Table 23). However, with the proposed SGMA projects and management actions, the groundwater pumping is less than the sustainable yield of the Subbasin for the Baseline and 2030 climate scenarios and is within 3% of the sustainable yield for the 2070 climate scenario (Table 23). This assessment indicates that the proposed SGMA projects and management actions for the Kern County Subbasin are of sufficient magnitude that, if fully implemented, would lead to groundwater sustainability for the Kern County Subbasin after WY2040. 7.2.3 Minimum Thresholds and Measurable Objectives Another requirement of SGMA is for groundwater levels not to cross their minimum thresholds to the extent that undesirable results would occur in the basin, and moreover, that proposed SGMA projects and management actions would lead to meeting the measurable objectives. The Kern County Subbasin GSAs have defined 186 representative monitoring well (RMW) locations spread across the Kern County Subbasin. A minimum threshold and measurable objective have been assigned each of the 186 locations, and the hydrographs for all 186 locations are provided in Attachment A. The RMW locations are shown on Figure 21. The C2VSimFG-Kern results were used to assess whether the simulated groundwater levels would meet the minimum threshold and measurable objective for each monitoring well. Because C2VSimFG-Kern is C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 34 TODD GROUNDWATER not fully calibrated, the results are presented as relative change (which does not require calibration) instead of simulated groundwater levels using the superposition method. Future change in groundwater level was determined for each of the 186 locations for each of the six projected future simulations. The change was calculated from the simulated March 2015 groundwater levels from the model. The change in groundwater level was then applied to the measured March 2015 groundwater level at the monitoring location. The result was to superimpose the simulated change in groundwater levels from the projected future C2VSimFG-Kern scenarios relative to the measured March 2015 groundwater level. Figure 22 provides four representative examples of the simulated hydrographs using this method. Hydrographs of the simulated groundwater levels relative to the minimum thresholds and measurable objectives for all 186 locations were provided to the various GSAs and water districts for inclusion in their respective GSPs. In general, across most areas of the basin, groundwater levels fall near or below the minimum thresholds without the SGMA projects but are typically above the minimum threshold for the simulations that include the SGMA projects. The groundwater hydrographs for some locations, especially along the eastern and western basin margins, show an unusual pattern that is likely influenced by issues with the hydrogeological conceptual model incorporated into C2VSimFG-Kern for these locations. The hydrographs for these areas are not considered to be representative of actual conditions that would physically occur. This is a limitation to the model. It is recommended that a more rigorous model update be conducted to revise the hydrogeological conceptual model to be consistent with that presented in the Kern County Subbasin GSPs. In addition, further calibration of C2VSimFG-Kern is recommended to update aquifer parameters in the Kern County Subbasin. The recommendations for revisions to the hydrogeological conceptual model and additional calibration are further discussed in Section 8.5. S. VALIDATION OF C2VSIMFG-KERN PERFORMANCE The C2VSimFG-Kern performs well within the central part the Kern County Subbasin. The model does not perform as well east of the Friant-Kern Canal or west of the California Aqueduct. The geologic and hydrogeologic conceptual models within the central part of the Kern County Subbasin appear to be generally realistic. The geologic and hydrogeologic conceptual models appear to be very poor in the areas where the model does not perform well. 8.1 C2VSimFG-Kern Validation One of the concerns for the modeling is the overall calibration of C2VSimFG-Beta in Kern County. As discussed above, the assumption is that C2VSimFG-Beta was developed using reasonable care in developing the geologic framework and developing a consistent regional methodology for determining aquifer properties. An identified weakness of the C2VSimFG-Beta is the quality of data used in developing the overall water balance such as the extent of the groundwater banking operations in Kern County. The issues with the water balance are considered the primary contributing factor affecting the calibration of the C2VSimFG-Beta; the hydrogeologic conceptualization is reasonably accurate for a regional planning analysis. To address these concerns, a validation analysis was performed for C2VSimFG-Kern by comparing simulations results to field measured groundwater level data collected during the Study Period and comparing those to a similar set of residuals from the C2VSimFG-Beta model. The statistical results of C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 35 TODD GROUNDWATER this analysis should be comparable, if not better, for C2VSimFG-Kern compared to the C2VSimFG-Beta results. The analysis used 42,058 groundwater levels measurements collected from 558 monitoring wells in the Kern County Subbasin. The data were collected by Kern County Water Agency, the Kern Fan Monitoring Committee, the DWR Water Data Library, and local agencies. For each location, the residual was calculated as the simulated groundwater level minus the measured groundwater level based on the well measurement data. A brief summary of the statistical measures used to evaluate the calibration results (shown on Table 24) is provided below: • The residual mean is computed by dividing the sum of the residuals by the number of residual data values. The closer this value is to zero, the better the calibration especially as related to the water balance and estimating the change in aquifer storage. The residual mean of 17.3 feet for C2VSimFG-Kern is an improvement of 47% over the 32.6 feet from C2VSimFG-Beta. • The absolute residual mean is the arithmetic average for the absolute value of the residual, so it provides a measure of the overall error in the model. The absolute residual mean of 37.4 feet for C2VSimFG-Kern is an improvement of 34% over the 56.8 feet from C2VSimFG-Beta. • The residual standard deviation evaluates the scatter of the data. A lower standard deviation indicates a closer fit between the simulated and observed data. The standard deviation is 45.5 feet for C2VSimFG-Kern, which is an improvement of 16% over the 54.0 feet from C2VSimFG-Beta. • The Root Mean Square (RMS) Error is the square root of the arithmetic mean of the squares of the residuals and provides another measure of the overall error in the model. The RMS Error is 50.0 feet for C2VSimFG-Kern, which is an improvement of 32% over the 73.5 feet from C2VSimFG-Beta. • The correlation coefficient ranges from 0 to 1 and is a measure of the closeness of fit of the data to a 1 to 1 correlation. A correlation of 1 is a perfect correlation. The correlation coefficient of 0.76 for C2VSimFG-Kern is an improvement of 47% over the 0.52 from C2VSimFG-Beta. • Another statistical measure is the ratio of the standard deviation of the mean error divided by the range of observed groundwater elevations. This ratio shows how the model error relates to the overall hydraulic gradient across the model. The ratio for C2VSimFG-Kern is 0.061 feet, which is an improvement of 34% over the 0.092 from C2VSimFG-Beta. Considering these results in context with the overall range of measurements of 616 feet, the residual mean of 17.3 feet represents a relative percentage difference of less than 3%. For the absolute residual mean of 37.4 feet, the relative percentage difference is about 6%. Despite this improvement in model performance, the model is not considered fully calibrated. However, C2VSimFG-Kern is reasonably validated for assessing groundwater level changes on the subbasin scale for the purposes of SGMA planning. 8.2 Sensitivity Analysis The C2VSimFG-Kern model was not formally calibrated. Some physical parameters were adjusted to improve model performance in specific areas. A sensitivity analysis was conducted on the adjusted model to understand how variations in model parameters affect model results. Eight physical parameter sets were systematically varied, and model results compared to the base model for a C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 36 TODD GROUNDWATER selected group of groundwater hydrographs. C2VSimFG-Kern parameter sensitivities evaluated for Kern County Subbasin include: • Horizontal hydraulic conductivity of aquifer (Kh) • Vertical hydraulic conductivity of aquifer (Kv) • Vertical hydraulic conductivity of Corcoran Clay aquitard (Kcorc) • Streambed conductance of Kern River (Cstm) • Specific storage of aquifer (Ss) • Specific yield of aquifer (Sy) • Soil hydraulic conductivity in root zone (Ksoil) • Soil pore size distribution index in root zone (X) The Root Mean Squared Error between observed and simulated values was calculated for the original parameter set and after varying each parameter set upward and downward by a set factor. Results are presented in Figure 23. This sensitivity analysis shows that the hydrologic parameter values in the C2VSimFG-Kern model are generally within an acceptable range. A full model calibration would likely improve model performance. 8.3 Peer Review Process Todd Groundwater worked with Woodard and Curran (W&C) throughout the model development process as W&C conducted an on-going peer review of model input files. W&C staff have developed several IWFM-based models and worked with DWR to develop C2VSimFG-Beta. Their reviews helped ensure that the model update used best practices when incorporating new data. The peer review process was documented in a series of meeting summaries to the KGA and KRGSA. The updated C2VSimFG-Kern input files for the Kern County Subbasin were shared with DWR for incorporation into future C2VSim public releases. The more general assumptions in C2VSimFG-Beta were replaced with local data and knowledge that are regionally or locally significant for WY1995 to WY2015. This update employed a phased approach with regular peer reviews. 1) Phase 1 revisions address components of Regional Significance that require significant changes to the overall model input file structure. These include: a) Surface water delivery volumes, application areas and use by water district, b) Groundwater banking recharge, recovery and application of recovered water, c) Evapotranspiration rates and irrigation demand based on ITRC METRIC data (ITRC 2017), d) Urban population and per capita demand, including addition of an urban zone for Metropolitan Bakersfield, and e) Addition of groundwater extraction wells for groundwater banking projects. 2) Interim Review a) The Woodard & Curran Peer Review Team b) Kern County Subbasin water districts and purveyor's local data review c) Stakeholder input 3) Phase 2 revisions address components of Local Significance that generally require modifications of input data and parameters within the existing C2VSim model input file structure. These include: C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 37 TODD GROUNDWATER a) Local water sources and demands of significance to individual Districts/GSAs, b) District pumping for in -district delivery via surface water canals where significant, c) District recharge operations utilizing canals, stream channels, and basins, d) Wastewater disposal and land application, and e) Review and limited adjustment of model parameters. 4) Interim Review by same reviewers listed in item 2 5) Phase 3 revisions include addressing comments and incorporating new data from the Interim Reviews 6) Interim Review by same reviewers listed in item 2 7) Tabulate model -derived water budgets for Peer -Review and GSP Use In each update phase, historical and current water budgets for zones representing water agency service areas were produced with the revised C2VSimFG-Kern model incorporating corrected local data. These water budgets were shared with participating agencies for review, to ensure that C2VSimFG-Kern correctly represented local water balances. Where necessary, participating agencies provided additional data which was incorporated into C2VSimFG-Kern. 8.4 Internal Review Process Todd Groundwater and Hydrolytics LLC worked collaboratively on this model revision, water budget development and the projected future scenarios. Throughout this work, efforts were applied to improve data management to develop a systematic process for generating model input files. Using this approach, internal review could be conducted with each firm reviewing the contributions from the other. The goal was to accurately represent the data provided by the Kern County agencies in the model. Due to schedule constraints, a thorough internal review of the projected future model scenarios was not completed prior to the submission of the Public Review Draft of the model results in August 30, 2019. A thorough review of all input for the projected future scenarios was conducted in September and October 2019. During this review, several issues were identified and corrected. As a result, the results in this report vary from those provided in the August 2019 Public Review Draft. Although the numbers changed, the overall conclusions from the C2VSimFG-Kern simulations remained essentially the same. 8.5 Recommendations for Future Improvements to C2VSimFG-Kern The C2VSimFG-Kern performs well in the Kern County Subbasin, producing simulated water budget components that generally match historical values compiled by local agencies. C2VSimFG-Kern simulated groundwater levels provide a reasonable approximation of observed groundwater levels in the central part of the Kern County Subbasin. The model is well suited for estimating the impacts of management actions on the Subbasin groundwater storage and is also well suited as a planning tool in meeting compliance of SGMA. During the model update, several outstanding issues were identified that should be addressed in future updates to C2VSimFG-Kern. The following actions and model improvements are recommended: • Improve streamflow simulations of the Kern River and Poso Creek. Flows in the Kern River channel, including local stream -groundwater interactions, are not well replicated and surface water diversions are not dynamically simulated. Some rejected recharge occurs in the Kern Fan C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 38 TODD GROUNDWATER area in very wet years, with significant outflow of groundwater to the Kern River especially in the Kern Fan banking area (i.e., rejected recharge). This has been an ongoing issue and needs to be addressed for the projected future water budgets so that banking recharge volumes can be better matched in the model. It is recommended that future revisions to C2VSimFG-Kern further evaluate issues in simulating streamflow and seepage in the Kern River and Poso Creek (see Section 8.5). This may include incorporating more advanced streamflow simulation features that are available in IWFM but that have not been previously utilized in developing C2VSim models by DWR. Changing the stream simulation feature may require development of a local Kern County Subbasin model. Improve the geologic and hydrogeologic conceptual model of the Kern County portion of the Central Valley. A hydrogeologic conceptual model is a framework for understanding where groundwater exists, where it flows, and how groundwater interacts with surface water bodies and the land surface. A geologic conceptual model provides a framework for understanding the geologic features that control groundwater movement. Quantitative analysis of Kern County Subbasin groundwater flow is severely hampered by the lack of detailed geologic and hydrogeologic conceptual models of the areas outside the central alluvial basin. Geologic and hydrogeologic conceptual models will provide a foundation for the quantitative analysis of the groundwater flow system, and the framework for modeling the system. Key steps are: o Develop detailed geologic and hydrogeologic conceptual models of the Kern County Subbasin. o Differentiate the four Principal Aquifers that have been identified in the Kern County Subbasin based on definitions from local management area GSPs. o Identify the locations and characteristics of natural features that affect groundwater recharge and movement (faults, ridges, clays). o Understand water occurrence and movement in areas outside the central Kern County Subbasin. o Develop water quality maps (natural constituents and anthropogenic constituents). o Modify the Kern County Subbasin model to conform to the updated conceptual models. • Simulation of deep percolation and small watersheds. Unreasonably high deep percolation (return flows) of the applied water in some areas has led to unreasonably elevated pumping rates to compensate. One problem is high root zone hydraulic parameter values in certain areas that were identified and corrected to better reflect local soil conditions. Because the excess pumping was returning to groundwater, the change has little effect on the basin change in storage, but the pumping and deep percolation are now more in line with local estimates. Root zone hydraulic parameters should be redeveloped throughout the subbasin to assure model values are representative of actual values. Root Zone Parameters, Areas of overly high root zone hydraulic parameters led to high volumes of deep percolation that required additional groundwater pumping to meet the overall water demand for irrigation. A review found areas of overlying high soil hydraulic conductivity and other soil parameters produced percolation rate that were too high. These areas were manually adjusted to be more in line with observed conditions. A more rigorous development of root zone parameters should be considered in the future as this issue demonstrates that it is a sensitive parameter. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 39 TODD GROUNDWATER Investigate development of a stand-alone Kern County Subbasin model. The C2VSim model provided by DWR and updated with local data is adequate for GSP preparation. However, this model may not meet all of the groundwater modeling needs of Kern County Subbasin stakeholders. In addition, running a full Central Valley simulation model imposes longer model run times and reduces model flexibility. Stakeholders should undertake a comprehensive study to develop a list of their integrated (groundwater and surface water) modeling needs, and then decide whether further improving C2VSimFG-Kern or developing a new integrated hydrologic model is the best way to address the Subbasin modeling needs. This decision should be made before the end of 2020 to allow sufficient time to develop a new model or improve C2VSimFG- Kern in time for use in development of the 2025 GSP. • Adjust the finite element grid to honor water management boundaries. The C2VSimFG-Kern model grid is a randomly generated grid that does not conform to any local features other than natural surface water channels. This limits the spatial accuracy of model inputs and the precision and flexibility of water budget outputs. Adjusting the grid to match district and agency boundaries, historical delivery areas, water management units within districts, and geologic and hydrologic features would greatly enhance model capabilities. Quantify boundary flows. Significant uncertainty exists regarding the rates and timing of groundwater flows into the Kern County Subbasin from surrounding watersheds, and groundwater flows from the Kern County Subbasin to Kings and Tulare counties to the north. Reliable estimates of boundary flows will improve model performance in boundary areas. • Kern County Subbasin Boundary. The GSAs in the basin should consider when DWR updates the Bulletin 118 in 2020 to investigate the "actual" Kern County Subbasin and to remove those peripheral lands where aquifer connectivity does not exist. Utilize more complex water management features of IWFM. The Kern Update process modified information within the existing C2VSimFG-Beta model structure to improve model performance within the Kern County Subbasin. The IWFM application has several features that could be further utilized to improve model performance. o Adjust the agricultural crops to better match the Kern County crop mix (for example, create separate crop categories for carrots, young and mature almonds, young and mature pistachios, etc.). o Implement multi -cropping with semiannual or quarterly land use. o Some C2VSim data are organized by DWR subregions, which represent heterogeneous areas with homogeneous data. Developing Kern County Subbasin subregions and organizing model input data by these subregions may provide a better representation of local hydrologic conditions. Calibrate the improved model for the Kern County Subbasin. DWR did not fully calibrate the Kern County portion of the C2VSim model, owing to both poor historical input data and a lack of calibration data sets. The Kern Update process significantly improved the historical data in the model, developed some calibration data sets, and included limited adjustment of model parameters. The updated model performs adequately in the central part of the Kern County Subbasin and poorly in areas outside the central part of the basin. Once the above improvements are completed, the Kern County portion of the resulting model should be fully calibrated to ensure that it performs well throughout the Kern County Subbasin. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 40 TODD GROUNDWATER 9. CONCLUSIONS This brief summary provides an overview of the findings and conclusions of the modeling results for the Kern County Subbasin using C2VSimFG-Kern. 9.1 Findings of the C2VSimFG-Kern Application and Results The subbasin-wide update of C2VSimFG-Kern incorporated data from many local agencies. Each participating agency provided data for their jurisdiction for use in improving the model. This included managed water supply data (e.g., surface water deliveries, land use, irrigation demand, return flows, and groundwater banking), stream and groundwater monitoring data, geologic data, and other relevant data. This information was compiled and used to improve C2VSimFG-Kern performance in the Kern County Subbasin. The historical water budget analysis indicates that the Kern County Subbasin was in a state of overdraft equivalent to the long-term decline in groundwater storage from WY1995 to WY2014 of 277,144 AFY. Projected Future simulations indicate that the proposed SGMA projects and management actions in the Kern County GSPs are sufficient for the Kern County Subbasin to achieve sustainability under Baseline and 2030 Climate Change conditions. C2VSimFG-Kern was used to evaluate the change in groundwater in storage for projected future conditions using a baseline condition that projects current water supply, water demand and land use over a 50 -year period based on historical hydrology. The baseline was adapted following DWR climate change guidance to develop 2030 and 2070 climate change simulations. The proposed SGMA projects and management actions were compiled from all of the Kern County Subbasin GSAs and management areas. The total projects total about 421,000 AFY after implementation. This assessment indicates that the proposed SGMA projects and management actions for the Kern County Subbasin are of sufficient magnitude that, if fully implemented, would lead to groundwater sustainability for the Kern County Subbasin after WY2040. The historical C2VSimFG-Kern performs well in the Kern County Subbasin, producing simulated water budget components and groundwater levels that generally match historical values compiled by local agencies. C2VSimFG-Kern simulated groundwater levels provide a reasonable statistical approximation of observed groundwater levels in the Kern County Subbasin that show significant improvement relative to C2VSimFG-Beta. Therefore, C2VSimFG-Kern is well suited as a planning tool to estimate the impacts of the proposed SGMA projects and management actions on groundwater conditions in the Kern County Subbasin. The C2VSimFG-Kern model development and the water budget analysis were designed to fulfill the GSP requirement for a coordinated subbasin-wide water budget analysis, while also providing information required to fulfill other GSP requirements. The C2VSimFG-Kern was provided to DWR so the Kern County Subbasin revisions can be incorporated into their master version of the C2VSim model. 9.2 C2VSimFG-Kern Compliance with Coordination Agreement Requirements Subbasin GSAs coordinated on the development and application of the C2VSimFG-Kern to ensure that the model was incorporating comparable data sets and the best available information; as such, the model meets numerous technical requirements for Subbasin-wide coordination, including for C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 41 TODD GROUNDWATER Coordination Agreements in §357.4. As demonstrated throughout this memorandum, the C2VSimFG- Kern model documents the use of "the same data and methodologies" for water budget development. Specifically, groundwater extraction data were coordinated through the use of ET METRIC data for all irrigated lands over the entire Subbasin to estimate private irrigation pumping. Monthly metered data from District, municipal, and banking pumping were incorporated as available. Surface water supply data were provided in similar units and formats using consistent templates for data collection and management in the model. Total water use and change in groundwater in storage were developed through consistent methodologies as applied in the C2VSimFG-Kern model. Calibration targets also incorporated consistent data sets for groundwater elevation data throughout the Subbasin as compiled in the DWR Water Data Library, KCWA water level database, and supplemented with local data, as needed. This memorandum documents coordination efforts in subsequent sections that demonstrates compliance with GSP requirements in §354.18, §357.4, and other portions of the regulations. 9.3 Limitations and Uncertainty of C2VSimFG-Kern The C2VSimFG-Kern performs well in the Kern County Subbasin, producing simulated water budget components that generally match historical values compiled by local agencies. C2VSimFG-Kern simulated groundwater levels provide a reasonable approximation of observed groundwater levels in the central part of the Kern County Subbasin. The model is well suited to estimating the impacts of management actions on subbasin groundwater storage. The C2VSimFG-Kern update was limited in scope, and some model components do not perform well. These components do not reduce model capabilities with respect to GSP development but limit the usefulness of the model for other types of studies. Flows in the Kern River channel, including local stream -groundwater interactions, are not well replicated and surface water diversions are not dynamically simulated. The Kern County Subbasin portion of the C2VSimFG-Kern is not calibrated, and although the land surface water budget components are generally accurate, groundwater conditions and stream flows are poorly simulated in much of the Subbasin. Some rejected recharge occurs in the Kern Fan area in very wet years, but this is not significant as it is a very small volume. The C2VSimFG-Kern is a reliable and defensible tool to support planning future groundwater conditions and estimating the potential hydrological impacts of future climate conditions and management actions at the subbasin level. It is currently the best available quantitative tool for assessing projected future groundwater conditions under SGMA. DWR recommends updating and refining models used in GSPs to incorporate new data including that in annual GSP updates. Refining Kern County Subbasin hydrologic modelling tools to replicate district -level historical conditions will provide a reliable means of assessing future effects of management actions at the district level for future GSP development. 9.4 Applicability of C2VSimFG-Kern Simulation Results Based on the model validation, C2VSimFG-Kern provides a useful planning tool to evaluate potential future trends in groundwater in the Kern County Subbasin. The model validation demonstrated the capability of C2VSimFG-Kern to reasonably simulate the groundwater elevations and trends during the period from WY1995 through WY2015 based on the comparison to measured data. The ability to reasonably simulate historical conditions provides confidence that C2VSimFG-Kern can be used to simulate potential future conditions. The model has the capability to simulate the most beneficial application of water projects that would provide the long-term benefit to the area. For the C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 42 TODD GROUNDWATER future case scenarios, the general practice is to evaluate model results with respect to long-term trends. Therefore, as a planning tool, it is most beneficial to run the model in relation to a base case and to evaluate the relative difference between the model scenario and the base case. The base case would assume a selected set of climatic, hydrologic and pumping conditions. Commonly, the calibration base period is assumed to repeat; however, any number of variations can be constructed. It is important to note that in some cases the model results may vary from those measured in individual wells due to the geologic complexity of the Kern County Subbasin. However, the model is capable of evaluating the impacts of changes in pumping and water use practices in the Kern County Subbasin that are useful for SMGA planning purposes. The conclusions and recommendations presented herein are professional opinions based on the C2VSimFG-Kern revisions and simulations as described herein. The findings and professional opinions presented in this letter are presented within the limits prescribed by the client contract, in accordance with generally accepted professional engineering, geologic and modeling practices, to support development of GSPs within the Kern County Subbasin. There is no other warranty, either expressed or implied, regarding the conclusions, recommendations, and opinions presented in this report. 10. REFERENCES Brush, CF, EC Dogru) and TN Kadir. 2016. Development and Calibration the California Central Valley Groundwater -Surface Water Simulation Model (C2VSim), Version 3.02 -CG. California, California Department of Water Resources Technical Memorandum. California Department of Water Resources (DWR). 2016A. California's Groundwater, Bulletin 118 Interim Update 2016. Sacramento, CA: Technical Memorandum. California Department of Water Resources (DWR). 2016B. Management Practices for the Sustainable Management of Groundwater, Modeling BMP. Sacramento, CA: Technical Memorandum. California Department of Water Resources (DWR). 2018A. Guidance for Climate Change Data Use During Groundwater Sustainability Plan Development. Sacramento, CA: Technical Memorandum. California Department of Water Resources (DWR). 2018B. Resource Guide, DWR-Provided Climate Change Data and Guidance for Use During Groundwater Sustainability Plan Development. Sacramento, CA: Technical Memorandum. California Department of Water Resources (DWR). 2019. Chronological Reconstructed Sacramento and San Joaquin Valley Water Year Hydrologic Classification Indices, accessed California Data Exchange Center database: http://cdec.water.ca.gov/reportapp/*avareports?name=WSIHIST last accessed in July 2019. California Natural Resources Agency (CNRA), 2018, C2VSimFG Beta model, model files and data sets downloaded from https://data.cnra.ca.gov/dataset/c2vsimfg-beta-model on May 25, 2018. California Water Commission. 2016. Water Storage Investment Program Technical Reference. Sacramento, CA: Technical Memorandum. City of Bakersfield (COB), 1985-2015, Annual Kern River Hydrographic Reports from 1985 through 2015. Water Resources Department. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 43 TODD GROUNDWATER Friant Water Users Authority (FWUA). 2018. Estimate of Future Friant Division Supplies for use in Groundwater Sustainability Plans. Fresno, CA. GEI Consultants. 2018. Kern River Hydrology Under Climate Change. Bakersfield, CA. IPUMS National Historical Geographic Information System Database, 2018, accessed and download population data for Kern County from http://www.ipums.org, last accessed April 2018. Irrigation Training and Research Center (ITRC). 2017. 1993-2015 ITRC-METRIC ETc for Kern County. California Polytechnic State University, San Luis Obispo, CA. Nady, P, and LL Larragueta. 1983. Estimated average annual streamflow into the Central Valley of California. USGS Hydrologic Atlas HA-657. Natural Resources Conservation Service (NRCS). 2018. Published Soil Surveys for California. https://www.nres. usda.gov/wps/portal/nres/surveyl ist/soi Is/survey/state/?stateid-CA. Natural Resources Conservation Service (NRCS), 2004, Part 630 Hydrology, National Engineering Handbook, Chapters 9, 10 and 20. Washington, DC. US Bureau of Reclamation (USBR). 2011. Kern National Wildlife Refuge Water Management Plan. https://www.usbr.gov/mp/watershare/docs/2010/refuges/kern-national-wildlife-refuge.pdf US Department of Commerce, 2018, Assessed online population database using census data for 1990, 2000 and 2010. https://www.census.gov/data/developers/data-sets/decennial-census.html, last accessed April 2018. US Geologic Survey (USGS). 2009. Central Valley Hydrologic Model: Texture Model. https://ca.water.usgs.gov/projects/central-val ley/cvhm-texture-model.html. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 44 TODD GROUNDWATER Table 1 Summary of data input for surface water diversion to agriculture by water district applied to C2VSimFG-Kern Historical Simulation Table 2 Summary input for surface water diversion from Kern River at different diversion and turnouts applied to C2VSimFG-Kern Historical Simulation Table 3 Summary of data input for surface water diversions for various purposes applied to C2VSimFG-Kern Historical Simulation Table 4 Summary of data input for surface water diversions to groundwater banking and managed aquifer recharge for different facilities applied to C2VSimFG-Kern Historical Simulation Table 5 Summary of data input for groundwater recovery pumping for local water supply by water district applied to C2VSimFG-Kern Historical simulation Table 6 Summary of data input for groundwater pumping for basin export by water district applied to C2VSimFG-Kern Historical Simulation Table 7 Summary of population data input by Urban Zone applied to C2VSimFG-Kern Historical Simulation Table 8 Summary of data input of per -capita water use by urban zone applied to C2VSimFG- Kern Historical simulation Table 9 Summary of data input for crop evapotranspiration (ET) by crop type based on METRIC satellite data applied to C2VSimFG-Kern Historical Simulation Table 10 Summary of C2VSimFG-Beta modifications in the Kern County Revision applied to C2VSimFG-Kern by IWFM model input file Table 11A Historical Groundwater Budget for the Kern County Subbasin for Water Years 1995 to 2014 based on C2VSimFG-Kern Historical Simulation Table 1113 Current Groundwater Budget for the Kern County Subbasin for Water Year 2015 based on C2VSimFG-Kern Historical Simulation Table 12 Estimated sustainable yield for Kern County Subbasin for WY1995 to WY2014 Base Period based on C2VSimFG-Kern Historical Simulation Table 13 Estimate of potential native yield for Kern County Subbasin for WY1995 to WY2014 based on C2VSimFG-Kern Historical Simulation Table 14 Hydrologic Year Correlation with relevant river Indices for projected -future simulation period Table 15 Summary of Simulated Change in Groundwater Storage Results over the 2041 to 2070 Sustainability Period (in text) Table 16 Projected Future Groundwater Budget for Kern County Subbasin under Baseline Conditions with NO SGMA Projects based on C2VSimFG-Kern Simulation Table 17 Projected Future Groundwater Budget for Kern County Subbasin under Baseline Conditions WITH SGMA Projects based on C2VSimFG-Kern Simulation Table 18 Projected Future Groundwater Budget for Kern County Subbasin under 2030 Climate Conditions with NO SGMA Projects based on C2VSimFG-Kern Simulation Table 19 Projected Future Groundwater Budget for Kern County Subbasin under 2030 Climate Conditions WITH SGMA Projects based on C2VSimFG-Kern Simulation Table 20 Projected Future Groundwater Budget for Kern County Subbasin under 2070 Climate Conditions with NO SGMA Projects based on C2VSimFG-Kern Simulation Table 21 Projected Future Groundwater Budget for Kern County Subbasin under 200 Climate Conditions WITH SGMA Projects based on C2VSimFG-Kern Simulation C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 45 TODD GROUNDWATER Table 22 Assessment of change in groundwater storage from C2VSimFG-Kern model results for historical and future scenarios for the Kern County Subbasin Table 23 Evaluation of Sustainable Yield for Projected -Future scenarios based on C2VSimFG-Kern Model Results for Kern County Subbasin Table 24 Summary of Statistical Analysis for Validation of C2VSimFG-Kern Historical Simulation Figure 1 GSAs in Kern County Subbasin Figure 2 C2VSimFG Simulation Grid for Central Valley Showing Kern County Subbasin Figure 3 C2VSimFG-Kern Simulation Grid with Kern County Subbasin GSAs Figure 4 Annual Kern River Index used to Define 20 -Year Historical Study Period Figure 5 Surface Water Features Kern County Subbasin Figure 6 Recharge Facilities and Recovery Wells used in C2VSimFG-Kern Figure 7 C2VSimFG-Kern Urban Zones with City Limits Figure 8 ITRC METRIC Data for Evapotranspiration 2013 Annual Example Figure 9 C2VSimFG-Kern Historical Groundwater Budget for Kern County Subbasin Figure 10 C2VSimFG-Kern Average Annual Water Budget for Kern County Subbasin Figure 11 Simulated Historical Change in Groundwater Storage for Kern County Subbasin Figure 12 Simulated Historical Recharge Operations for Kern County Subbasin Figure 13 Simulated Historical Groundwater Pumping for Kern County Subbasin Figure 14 Simulated Historical Surface Water Deliveries for Kern County Subbasin Figure 15 Average Annual Benefit of Proposed SGMA Projects and Management Action Figure 16 Projected Future Change in Groundwater Storage for Baseline Conditions Figure 17 Baseline Projected Future Average Annual Groundwater Budget for WY2041-2070 Figure 18 2030 Climate Projected Future Average Annual Groundwater Budget for WY2041-2070 Figure 19 2070 Climate Projected Future Average 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Ln m 0 0 0 I -i m Ln lzt 00 Ci -t C'� ci -t Ci I -R to lzt N-1 00 m 1.0 rq m 1.0 00 rl m a) Ul m M 00 0 1.0 00 ct —t Cli lyi rIq 00 r4 1.0 (14 Q1 U . . . . . . . . . . . . . . r, r4 -1 00 rl rl a) rl� lR 00 00 Cr C� rl� r, ct Ln to rl rq al z aCi 00 m r" a) m 0 a) 0 Ul r -i 0 00 M r4 Ln 1.0 0 r -i -1 -i Ln a) Cli ct "'i Lr al I -R to C� rl� C� C� r -t r -t m rl rq m to Ul 1.0 -i 0 -i Ln -i Ln r, V to 00 r, 00 00 00 al 00 O m a) N m m a) 't m ul a) to m r, a) 00 a) a) a) 0 0 ci 0 r4 0 m 0 ct 0 Ln 0 to 0 r, 0 00 0 cr) 0 0 -1 r4 m "t -i r -I -i r -I -i r -I -i r -I -i r -I -i r -I -i r14 (14 r14 N r1i (14 r14 N r14 (14 r14 N r14 N rq R W MJ W V M ci 00 l0 I' lD lD Lfl I' I' M M N N ci O Cl 00 I- n <0 Lfl Lfl I' I' N N N N N f0 Ck; 'I'' C LnLni i i N N N N N N N N N N M N N N N N N N N N ci ci ci ci ci Li Q M ci F I7 Ln M N ci ci O Ol 00 I, n 3 Ln I, F ci M 3 00 O N zi' 3 N M 00 N O Ol lzl' 00 M 00 M O n lzl' ci I, lzl' ci 00 Ln N lzl' lD Ol ci M LA 00 O N lzl' 00 ci Ln O L(1 O `: `: ll ll N N Lfl I� O M LA 00 ci M l0 Ol O N `: Lfl l0 I� Ol O `: Ol `: ci 00 '.M, l0 �t N O 00 lD n 00 O ci N M Lfl l0 I, 00 Lfl ci I, M Ol LA ci I, lzl' O 00 lD Lfl lzl' N @ M M Ln M I, M Ol M O N M lzl' lD n 00 Ol O Lf) ci Ln N Ln M Ln Ln Ln I, Ln 00 Lf) O l0 ci l0 M l0 Ln l0 l0 l0 00 l0 O I, O n ci n N n M n d' n H..., Q O a Ln Ln Ln N O 00 l0 'zT N O 00 l0 lzl' M M 00 N I, N lD ci Ln O l0 ci Ln ci Ol y 00 Ol O ci N M M M N N N N N ci ci ci O O M M 00 00 I, n lD lD 00 M I, lzl' 00 G O O O Lfl Ol ll I, ci Lfl Ol ll `: n Ol N Lfl 00 I� O ll n N 00 d' m Lfl ci I, M m l0 M ci 00 l0 M O 00 Lfl M Lfl I, m N zi l0 m ci M l0 N 00 Lfl ci 00 C f6 N N lzl' N lD N n N M N O M ci M N M M M M M 'zT M Lf) M l0 M l0 M I, M 00 M Ol M O lzl' ci lzl' M lzl' lzl' lzl' Lf) 'zT l0 lzl' 00 lzl' Ol lzl' O Ln ci Ln ci Ln N Ln M Ln M L(1 D L 0i 0 D M M M N N N Ln r, O N LA I, O N Ln I, N n N n M 00 M 00 M 00 Ol ci N M L(1 Q1 lzl' lzl' lzl' lzl' lzl' lzl' n n O M n O M lD lzl' ci M l0 lzl' ci M l0 lzl' ci ci N N N N 0 lzl' �' �' �' �' �' �' Lfl Lfl Lfl l0 l0 l0 I� n n n n lD lD lD <0 Lfl Lfl Lfl Lfl Lfl Lfl Lfl Lfl Ill C r4 L 0i l0 I, 00 Ql O ci O 00 Ln 'zT M ci O 00 I, Ol O N lzl' lD n Ql ci N M I, ci Ill y M N M l0 ci I, N 00 O l0 N 00 M Ol O N M lzl' Ln l0 Ol O ci I, M Ol l0 N GO n c -I `' 00 N l0 Lfl Lfl 00 N l0 O `: Ol ll `: lD n Ol rl N ';, Lfl l0 l0 l0 I, n n n n n n n n n n n n 00 00 00 Ol Ol O O O rI ci ci ci -1 N C....r4 _@ ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N N =3 0i �... L 0 D Lfl00 N Lfl Ol N M l0 00 CT) O ci N M ci 00 l0 M ci 00 l0 M ci 00 N I, ci LnO Q1 l* lD - ci M l0 (N �' O <0 N CT) l Lnci I, O N Ln 00 ci M l0 Ol N lzl' lD n Ol O N O 00 00 00 Ol Ol Ol O O ci N N M M M M l0 l0 l0 l0 I, n n n 00 00 00 00 00 M M ... N N N N N N N N N N N N N N N N N N N �C....r4 0i L O_ Ql ci M Lfl 00 O O ci ci N N N M M lzl' lzl' M N N ci O M 00 00 I, lD M lzl' O n lD y 00 M I, ci M O M 00 I, lD M lzl' M N ci O ci N M M M l0 I, 00 M M N M M N G O Lfl l0 l0 I� n 00 ci Lfl Ol M r ci Lfl Ol ll I� ll Ol Lfl ci I� M Ol Lfl ci r, a ci N `: lD N , ci ci ci ci ci ci N N N M M M M l0 l0 I, 00 00 M M O ci ci ci N N N N f6 ci ci ci ci ci ci ci ci ci ci c -I ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N L d m lzl' O Ln ci l0 N 00 lzl' O l0 ci I" M m Ln M O 00 Ln M O 00 Ln M O ci ci N M M Q1 M CO I, Ln lzl' N M M m' Ln LA l0 l0 I" n 00 m O O ci N M M �t Ln l0 l0 l0 l0 l0 l0 0 c -I ci ci ci ci ci ci ci ci ci c -I ci ci ci ci ci ci N N N N N N N N N N N N N N .... 8. EL 0i � l0ci I" N 00 M O 00 Ln L M O I" Ln N O I" ci lzl' 00 N l0 m M Il O �' M ci Il ci Ln y l0 N I" M 00 �' ci I" �' ci 00 �t ci 00 Ln -1 �t lD 00 ci M Ln00 O M LnO I" Ln l0 00 G O n O N Lnrl O ci ci N M M lzl' Ln Ln l0 I" ci Ln m �t 00 N lD ci Ln m �t 00 M 00 M I-, 00 m r- O M l0 Ol N Lfl 00 00 ci M l0 00 ci M Lfl r- 00 O ci M @ M M M M M l0 l0 l0 Il, n n n 00 00 00 M M M M O O O O ci ci ci ci -1 N N N C p�j � 0i ci ci ci ci ci ci ci ci ci ci ci ci L D d Ln Ln l0 Il- n 00 N l0 O N l0 O 00 I" Lfl lzl' N ci m 00 l0 Lfl M N -1 O m m lzl' lD 00 O N l0 I, M O ci M lzl' lD n 00 00 00 00 00 00 I, n n n n O M lD 00 r1 Lfl Lfl Lfl l0 l0 l0 l0 l0 l0 I� n n n n n n 00 Ql O ci N M �' v! l0 I- 00 00 00 00 Ol .O a" a" a" a" a" �' a" a" a" a" a" a" a" Lfi Lfi Lfi Lfi Lfi Lfi Lfi Lfi Lfi Lfi Lfi Lfi Ln to E >z l0 l0 I� n n n 00 O N r' Lfl O O Ql M Lfl Ql �' O 00 Q1 l0 O �' 00 N l0 O Lfl Ql M M I, ci Lfl M Ql M M M 00 Lfl M N O I, Lfl (N N O r, I� N ci O O O O1 GO N Lfl I� mN �' 00 00 ci Lfl 00 ci Lfl 00 Ol N Lfl 00 O M l0 00 O N L(1 N 'd=, 00 00 00 CO M M M O O O ci ci N N N M M M M �t �t Ln Ln Ln Ln l0 l0 l0 l0 _@ d d d d d d d N N N N N N N N N N N N N N N N N N N N N N N N m L 0 D....:.. 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'6 Irl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl vl : C � ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N S2' L 00 Im C U l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 l0 L�.J1. -� Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Q1 Ol C :. � c -I ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci Im C U 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -0 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Q� Ill O IO 00 O1 O N M O N M Ill l0 n 00 O1 O ci N M �i Ill y:.. u �' 00 Q1 00 Q1 00 Q1 00 Q1 00 Q1 Ql Q1 Ql M Q1 Ql Q1 Ql Q1 Ql M Q1 Ql M Q1 Ql M Q1 Ql M Q1 Ql M O1 Ol M O1 O O O 0 O O O O O O 0 O O O O O O O O O O O 0 O 0 O 0 O 0 O 0 O 0 O ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N N N N N N N N N rvNmmmmrvmrvNry oNom...,rvOrvm �^� c ro rvNmmmmrvmrvNrvmrvNrvmmmrvmrvNrvNrvNrvNrvNN�M� � ry N ry N ro N n n n o ro n ro N o N ro o 0 �NrvNrvN�Nrv�m�oN���N m m mm mNmmmm mmmmmmmmmmmmNMM�, n' ,c rvNmmmmrvmrvNrvmrvNrvNrvmmmrvNrvNmmmmmmmM �, o s T � c m o� mmNrvmmmmmmmmM �, 4,' 0 o m v m v .. m .61 Is m yy 4 �O j N m m m m- m- n V V W N- V- m N m V m C M v1 .-i .yHT W M of 4 L (7 T 111, 111, 111, c V T n n V m m V m O O W �,r yy 1� N T W W N N of W N N c0 1� N N W W N N n of N N N W m N of 1� N N N m m N of N N m N N N N N N N N N m N N N ti s C,� . 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Nmmmmomrvm..omN �., m m cl A W of W of W m of m of m of m of m 0 0 0 0 0 TABLE 10 - Summary of C2VSimFG-Beta modifications in the Kern County Revision applied to C2VSimFG-Kern by IWFM model input file File Name I Change to Model Input File C2VSimFG.in * IChange simulation starting time to 09/30/1985_24:00 C2VSimFG Unsat.dat *I Replaced initial condition values with more representative values for revised starting C2VSimFG SWatersheds.dat *I Modified parameters to improve stream discharge match to historical values C2VSimFG Groundwater1985.dat * Added hydrologic flow barrier at White Wolf Fault * Set Corcoran Clay thickness to 0 ft in areas where it is not present * New 10/1/1985 initial condition * Modified hydraulic conductivity and specific storage in Layer 1 in the Kern Water Bank * Kern County observation wells C2VSimFG ElemPump.dat *I FRACSK and DSTSK modified for Kern County elements with limited pumping C2VSimFG WellSpec.dat * jAdded Kern County groundwater water bank recovery wells * Added Kern County In -District and Urban wells C2VSimFG PumpRates.dat * jAdded Kern County groundwater water bank recovery pumping * Added Kern County In -District and Urban pumping C2VSimFG Streaminflow.dat *I Exteneded Poso Creek inflow through WY2015 C2VSimFG DiverionSpec.dat * Removed all Kern County diversions and renumbered remaining diversions to 1-371 * jAdded Kern County diersions 372-484 C2VSimFG Diverions.dat * Removed all Kern County diversions and renumbered remaining diversions to 1-371 * Added Kern County diersions 372-484 * Updated diversion data for all diversions to Kern County C2VSimFG_BypassSpecs.dat IRemoved bypass #17 C2VSimFG RootZone.dat *I Native return flow is sent to either nearby stream nodes as runoff or out -of -model as ET C2VSimFG IrrPeriod.dat * lAdjusted Kern County irrigation periods C2VSimFG ReturnFlowFrac.dat *I Modified Kern County Ag return flow fraction C2VSimFG Urban.dat * jAdded zone 106 for Metro Bakersfield and adjusted other Kern County zone areas * 1APPlied estimated September 1985 initial condition C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER TABLE 10 - Summary of C2VSimFG-Beta modifications in the Kern County Revision applied to C2VSimFG-Kern by IWFM model input file File Name I Change to Model Input File C2VSimFG Urban Area.dat * Changed Kern County oil fields from urban to native vegetation C2VSimFG Urban PerCapWaterUse.dat * Updated population for Kern County Urban Zones based on 1990, 2000, 2010 Census * Developed demands from historical data and water management plans C2VSimFG Urban_Population.dat IUpdated population for Kern County Urban Zones based on 1990, 2000, 2010 Census C2VSimFG Urban WaterUseSpecs.dat * Set fractions for SRs 19-21 based on local info C2VSimFG NonPondedCrop.dat *I Return flow = 0 for Kern County C2VSimFG NonPondedCrop_Area.dat IRevided crop distributions to match historical distribution C2VSimFG PondedCrop_Area.dat *I Modified distribution of rice to be limited to areas in northwest Kern County with C2VSimFG_NativeVeg_Area.dat *I Rebalanced native veg distribution after redistribution of non-ponded crop area to C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER Table 11A - Historical Groundwater Budget for the Kern County Subbasin for Water Years 1995 to 2014 based on the C2VSimFG-Kern Historical Simulation Water Year Precipitation and applied water that reaches the groundwater after simulated transport across the Deep Percolation Managed Recharge and Canal Seepage Net GW/SW Interactions GW Pumping Small ! Watershed Inflow Subsurface Flow with Adjacent GW Basins Change in Groundwater Storage Units Managed Acre -ft Acre -ft Acre -ft Acre -ft Acre -ft Acre -ft Acre -ft Recharge and 1995 880,480 944,800 185,777 -946,782 122,287 -75,299 1,111,263 Interactions 1996 801,572 926,537 106,692 -1,247,471 41,190 -84,675 543,845 Acre -ft 1997 766,667 771,510 126,405 -1,068,169 50,548 -87,372 559,587 0 1998 1,034,867 1,097,180 121,413 -884,593 155,312 -87,515 1,436,665 1999 755,674 633,676 39,704 -1,109,310 32,155 -85,211 266,692 2000 617,018 462,522 91,454 -1,375,733 25,956 -83,759 -262,541 2001 551,880 222,131 66,647 -1,839,000 24,633 -81,896 -1,055,605 2002 466,463 202,687 76,147 -1,760,186 18,882 -83,943 -1,079,950 2003 502,831 297,019 118,149 -1,492,816 34,003 -85,638 -626,452 2004 488,327 284,862 83,294 -1,860,344 27,959 -89,250 -1,065,153 2005 799,614 1,147,287 132,785 -1,108,382 93,557 -89,912 974,946 2006 839,390 1,125,277 44,657 -1,149,877 40,846 -96,591 803,702 2007 560,860 403,611 26,260 -2,099,953 17,882 -91,566 -1,182,908 2008 463,721 146,763 78,841 -2,341,780 36,058 -86,260 -1,702,659 2009 485,234 186,548 73,848 -2,206,377 21,586 -85,764 -1,524,923 2010 599,434 467,683 141,715 -1,470,205 58,145 -94,664 -297,892 2011 1,073,963 1,530,123 259,404 -984,968 118,303 -94,981 1,901,842 2012 713,826 580,590 88,581 -1,583,369 19,020 -93,041 -274,395 2013 538,356 156,704 59,483 -2,447,479 19,043 -83,619 -1,757,511 2014 447,782 84,456 50,857 -2,830,674 17,832 -81,081 -2,310,831 Total 1 13,387,9591 11,671,9661 1,972,113 -31,807,470 975,198 -1,742,039 -5,542,280 Average 1 669,3981 583,5981 98,606 -1,590,373 48,760 -87,102 -277,114 Table 11B - Current Groundwater Budget for the Kern County Subbasin for Water Year 2015 based on the C2VSimFG-Kern Historical Simulation NOTES: Deep Percolation Precipitation and applied water that reaches the groundwater after simulated transport across the unsaturated zone Managed Recharge and Canal Combined groundwater recharge from managed aquifer recharge operations, groundwater Subsurface banking, and seepage from canals and other conveyance Net GW/SW Interactions Net volumetric exchange of surface water and groundwater from streams: Positive represents a net Managed groundwater recharge, and negative represents a net groundwater discharge to the stream Subsurface Flow with Change in Subsurface Flow within GW Basin Deep , Recharge and Net GUI//SW Subsurface Flow with Adjacent Flow within Adjacent GW Groundwater Water Year Percolation Canal Seepage Interactions GW Pumping GW Basin Basins Storage Units Acre -ft Acre -ft Acre -ft Acre -ft Acre -ft Acre -ft Acre -ft 2015j 429,983 j 89,744 j 46,344 -2,740,237 0 -51,201 j -2,225,366 NOTES: Deep Percolation Precipitation and applied water that reaches the groundwater after simulated transport across the unsaturated zone Managed Recharge and Canal Combined groundwater recharge from managed aquifer recharge operations, groundwater Seepage banking, and seepage from canals and other conveyance Net GW/SW Interactions Net volumetric exchange of surface water and groundwater from streams: Positive represents a net groundwater recharge, and negative represents a net groundwater discharge to the stream Total groundwater pumping by wells. Groundwater banking recovery pumping is specified input GW Pumping whereas agricultural and municipal pumping is calculated by C2VSim based on demand Subsurface Flow within GW Basin Net subsurface groundwater flow into a neighboring water district or area within the Kern County Subbasin: negative is a net flow out of the district and positive is a net flow into the district Subsurface Flow with Adjacent Net subsurface groundwater flow from the Kern County Subbasin with an adjoining groundwater GW Basins basin: negative is a net flow out of the Basin and positive is a net flow into the Basin Sum of the inflow components (positive numbers) plus the outflow components (negative Change in Groundwater Storage numbers): positive is an increase in storage typified by a rise in GW levels whereas a negative is a decrease in storage typified by a decline in GW levels C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER R' 0 N 0 Ln rn Gl Y _0 G m N 4a 0 V G Y 4- .T B m m 4a ulul .0 4a m E N W N W J m N G m 75 iz L 0 G Y l7 LL E N V 0 m 0 d a m m E 0 lD o N o M M n M N O `i m ^ Ln (n O0 � Ln (n Ln ll�Ln �Ln OM M Ln Ln M 6 'tc-I Ln -I -* 'a v N c N a _ C C � a rn 00 rl 00 0 0 0) r+ 0 0 V7 N M N O M O N O N .--i O N C v CL >0 a o M o O ti o _ f0 y Cil O o O 00 m W Ln O 000 N M an lD M l0' = c -I ri MlG C ' N O N O N y O N Q 0 i = N � L m 4 Q > c m Mc} 01 V o c N NV O V O Ln 1-4 'O 1-4 w M c -I N N N M N N } OI� M N O/ O I- M N O/ D1 V7 I� N N M N•y N O W .-i Nftp: 4) `u p r a -i > f° Q m .0 _ N = m tom+ _ a, p 0 N v v 0 = _ to y to i aJ i O ,C Y C y UiA 4/ Q E E -c E = O u s 0 = O u 0 0 c 0 = aVi _ 0 0 > _ v0 > _ a`j N 0 w N C Y N Nbn C to v D ,aj C ar OA = r cVo A ice+ = u u ate+ '�- u O .n ate+ u R. .ate+ O a r0 V a in O7 Q O 60 .O in ai 47 Q =5l7 �n ow. vOi a� E 0 C v:. 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C L c 3 ca u v n Y Y m� Eu° m m n 3 W 0 c N v tau z r ux Table 14 - Hydrologic year correlation with relevant river indices for projected -future simulation period Project Year Hydrology Year Annual Kern River Index San Joaquin River Index 2021 2003 71 Below Normal 2022 2004 56 Dry 2023 2005 159 Wet 2024 2006 147 Wet 2025 2007 35 Critical 2026 2008 71 Critical 2027 2009 65 Below Normal 2028 2010 126 Above Normal 2029 2011 201 Wet 2030 2012 45 Dry 2031 2013 28 Critical 2032 2014 24 Critical 2033 1995 191 Wet 2034 1996 136 Wet 2035 1997 162 Wet 2036 1998 236 Wet 2037 1999 60 Above Normal 2038 2000 66 Above Normal 2039 2001 54 Dry 2040 2002 58 Dry 2041 2003 71 Below Normal 2042 2004 56 Dry 2043 2005 159 Wet 2044 2006 147 Wet 2045 2007 35 Critical 2046 2008 71 Critical 2047 2009 65 Below Normal 2048 2010 126 Above Normal 2049 2011 201 Wet 2050 2012 45 Dry 2051 2013 28 Critical 2052 2014 24 Critical 2053 1995 191 Wet 2054 1996 136 Wet 2055 1997 162 Wet 2056 1998 236 Wet 2057 1999 60 Above Normal 2058 2000 66 Above Normal 2059 2001 54 Dry 2060 2002 58 Dry 2061 2003 71 Below Normal 2062 2004 56 Dry 2063 2005 159 Wet 2064 2006 147 Wet 2065 2007 35 Critical 2066 2008 71 Critical 2067 2009 65 Below Normal 2068 2010 126 Above Normal 2069 2011 201 Wet 2070 2012 45 Dry C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER Table za'Projected Future Groundwater Budget for Kern County suubaoinunder Baseline conumvnswuxmmmsrwxpmjectsuaseuvn C2VSimFG-Kern Simulation WaterYear Deep Percolation ManagedRecharge and Canal Seepage NetStreamGw/SW krteraction Net Small Watershed �Recharge L Pumping Subsurface Flow With Adjacent GW Basins Changein Groundwater Storage Units Acre -ft Acre -ft I Acre -ft I Acre-tt I Acre -ft Acre -ft Acre -ft Total 31,276,6681 27,591,2181 6,284,6361 2,457,8051 -80,359,2271 -3,647,9961 -16,396,918 Average 625,5331 551,8241 125,6931 49,1561 -1,607,1851 -72,9601 -327,938 SUMMARY: WY2021 to WY2040 Implementation Period Total 1 12,059,1571 10,900,9301 2,570,0481 948,2391 -31,618,4031 -1,527,1021 -6,667,151 Average 602,9581 545,0461 128,502 47,4121 -1,580,9201 -76,3551 -333,35! SUMMARY: WY2041 to WY2070 Sustainability Period Total 1 19,217,5101 16,690,2881 3,714,5881 1,509,5661 -48,740,8231 -2,120,8941 -9,729,767 Average 1 640,5841 556,3431 123,8201 50,3191 -1,624,6941 -70,6961 -324,326 Annual Simulation Results for WY2021 to WY2070 Simulation Period 2021 421,248 253,922 124,080 38,770 -1,605,058 -83,845 -850,883 2022 466,065 311,661 80,807 28,596 -1,881,001 -79,540 -1,073,415 2023 670,267 894,337 186,631 97,803 -1,082,942 -77,289 688,801 2024 782,933 971,636 250,700 67,141 -1,004,008 -81,747 986,650 2025 487,829 334,264 74,696 18,060 -1,956,094 -78,483 -1,119,730 2026 440,342 154,936 78,551 36,473 -2,258,997 -69,511 -1,618,207 20271 522,430 255,426 73,629 21,942 -1,995,091 -69,397 -1,191,063 2028 569,509 496,227 141,957 35,496 -1,490,383 -70,383 -317,575 2029 1,025,597 1,528,921 110,823 119,558 -891,968 -80,187 1,812,744 2030 692,430 587,522 63,468 19,157 -1,382,783 -79,634 -99,841 2031 550,146 164,041 109,295 19,161 -2,366,434 -73,780 -1,597,574 2032 459,496 111,528 66,581 18,134 -2,763,485 -65,268 -2,173,015 2033 742,600 875,129 188,075 126,420 -1,059,514 -71,675 801,034 2034 617,059 786,754 201,477 42,156 -1,422,316 -78,762 146,370 2035 691,055 727,363 294,732 52,652 -1,120,121 -82,586 563,094 2036 848,018 1,151,100 175,108 103,683 -890,760 -84,597 1,302,552 2037 617,636 539,499 102,463 32,114 -1,230,808 -82,549 -21,645 2038 517,060 379,550 106,226 26,241 -1,390,747 -77,398 -439,070 2039 495,144 190,829 65,868 25,370 -1,883,912 -72,405 -1,179,106 2040 442,293 186,285 74,884 19,311 -1,941,979 -68,067 -1,287,273 2041 466,980 254,002 124,912 34,980 -1,621,935 -66,834 -807,894 2042 519,154 311,722 81,095 28,467 -1,928,066 -66,378 -1,054,007 2043 723,193 894,377 183,602 100,835 -1,131,893 -66,724 703,389 2044 829,429 971,656 217,998 68,630 -1,055,212 -73,234 959,267 2045 520,072 334,263 67,722 18,136 -2,005,971 -71,742 -1,137,519 2046 465,742 154,936 78,954 36,599 -2,308,492 -64,094 -1,636,355 2047 542,433 255,426 73,991 22,117 -2,044,767 -65,020 -1,215,821 2048 587,534 496,227 142,442 35,645 -1,539,937 -66,665 -344,754 2049 1,038,285 1,528,924 111,871 121,871 -940,873 -77,190 1,782,886 2050 704,906 587,522 63,577 19,216 -1,430,758 -77,175 -132,713 2051 567,160 164,041 109,977 19,218 -2,411,967 -71,447 -1,623,019 2052 480,958 111,528 66,775 18,007 -2,776,754 -63,069 -2,162,556 2053 756,460 875,129 189,903 127,393 -1,105,182 -69,591 774,112 2054 629,422 786,754 203,667 42,236 -1,466,597 -76,937 118,546 2055 697,412 727,363 297,238 52,738 -1,163,909 -81,081 529,760 2056 955,260 1,151,202 186,248 169,221 -887,932 -83,323 1,490,676 2057 663,489 539,499 104,143 33,376 -1,272,005 -81,579 -13,077 2058 543,714 379,550 107,428 26,454 -1,432,264 -76,504 -451,623 2059 516,904 190,829 65,982 25,586 -1,924,204 -71,122 -1,196,025 2060 461,832 186,285 75,033 19,353 -1,923,734 -66,838 -1,248,069 2061 483,873 254,002 125,183 34,990 -1,662,322 -65,509 -829,782 2062 535,495 311,722 81,199 28,658 -1,968,451 -64,883 -1,076,261 2063 747,374 894,377 185,862 103,344 -1,173,248 -65,287 692,423 2064 797,596 971,656 227,478 42,092 -1,131,322 -72,135 835,365 2065 518,644 334,263 69,814 18,276 -2,046,917 -70,907 -1,176,825 2066 472,700 154,936 79,262 36,483 -2,350,004 -63,321 -1,669,944 2067 550,095 255,426 74,266 22,151 -2,087,215 -64,426 -1,249,703 2068 654,126 496,227 142,653 60,396 -1,488,744 -65,173 -200,5 2069 1'267 2 112,385 M: 251 -984,856 -76,3021 99 58:2 oVSirnFG«ern Water Budgets Table zr'Projected Future Groundwater Budget for Kern County suuuasnunder Baseline Conditions WITH msrwxProjects based vn C2VSimFG-Kern Simulation WaterYear Deep Percolation Managed Recharge and Canal Seepage Net GW/SW krteractions Small Watershed inflow L Pumping Subsurface Flow With Adjacent GW Basins Changeln Groundwater Storage Units Acre -ft Acre -ft I Acre -ft Acre -ft I Acre -ft Acre -ft Acre -ft Total 33,771,5271 32,630,9311 5,233,6431 2,457,8051 -69,157,7081 -5,025,6011 -89,422 Average 675,4311 652,6191 104,6731 49,1561 -1,383,1541 -100,5121 -1,788 SUMMARY: WY2021 to WY2040 Implementation Period Total 1 13,100,5481 12,612,7301 2,239,1601 948,2391 -28,535,0551 -1,719,3401 -1,353,732 Average 655,0271 630,6371 111,958 47,4121 -1,426,7531 -85,9671 -67,68Z SUMMARY: WY2041 to WY2070 Sustainability Period Total 1 20,670,9791 20,018,2001 2,994,4831 1,509,5661 -40,622,6531 -3,306,2611 1,264,311 Average 689,0331 667,2731 99,8161 50,3191 -1,354,0881 -110,2091 42,144 Annual Simulation Results for WY2021 to WY2070 Simulation Period 2021 430,153 302,373 123,650 38,770 -1,594,606 -83,189 -782,849 2022 475,303 349,553 80,614 28,596 -1,862,120 -78,565 -1,006,617 2023 770,374 1,002,929 168,647 97,803 -1,009,264 -78,404 952,085 2024 855,058 1,086,448 198,849 67,141 -944,665 -84,319 1,178,512 2025 503,643 350,298 70,663 18,060 -1,861,303 -81,925 -1,000,565 2026 440,243 214,542 77,894 36,473 -2,187,564 -73,190 -1,491,603 20271 518,989 316,584 73,092 21,942 -1,919,158 -73,183 -1,061,733 2028 578,749 623,230 137,529 35,496 -1,407,567 -75,335 -107,901 2029 1,194,895 1,696,947 83,255 119,558 -744,743 -87,273 2,262,638 2030 750,668 608,048 58,365 19,157 -1,257,759 -87,531 90,947 2031 555,404 180,833 107,613 19,161 -2,187,295 -83,584 -1,407,869 2032 453,293 125,476 66,634 18,134 -2,567,449 -76,460 -1,980,378 2033 824,902 1,059,059 172,274 126,420 -840,738 -84,135 1,257,782 2034 653,828 917,135 178,991 42,156 -1,197,621 -93,181 501,309 2035 827,370 931,556 238,868 52,652 -872,560 -98,679 1,079,205 2036 1,116,969 1,381,739 113,563 103,683 -633,072 -102,650 1,980,231 2037 725,584 594,384 63,749 32,114 -1,023,020 -100,141 292,669 2038 511,919 433,966 84,887 26,241 -1,154,051 -95,834 -192,873 2039 489,540 224,450 65,153 25,370 -1,627,860 -92,035 -915,382 2040 423,665 213,184 74,871 19,311 -1,642,642 -89,729 -1,001,340 2041 445,485 305,376 122,807 34,980 -1,354,885 -89,185 -535,423 2042 498,858 354,364 80,832 28,467 -1,639,112 -89,772 -766,363 2043 812,155 1,090,304 140,266 100,835 -882,848 -92,437 1,168,274 2044 892,628 1,153,766 138,151 68,630 -836,920 -100,949 1,315,306 2045 524,833 355,672 49,525 18,136 -1,730,147 -100,070 -882,051 2046 454,216 218,616 78,021 36,599 -2,055,875 -92,126 -1,360,549 2047 532,454 320,562 73,425 22,117 -1,809,154 -93,438 -954,033 2048 593,653 668,774 137,874 35,645 -1,324,186 -97,255 14,505 2049 1,234,198 1,750,812 79,492 121,871 -710,054 -110,080 2,366,239 2050 768,780 619,092 54,500 19,216 -1,197,582 -110,438 153,567 2051 578,825 192,400 107,098 19,218 -2,110,155 -106,461 -1,319,074 2052 479,637 135,929 66,695 18,007 -2,470,952 -99,536 -1,870,221 2053 850,038 1,095,469 170,484 127,393 -813,603 -107,867 1,321,915 2054 682,383 948,274 168,655 42,236 -1,143,633 -117,748 580,168 2055 858,469 966,141 223,989 52,738 -849,900 -123,451 1,127,986 2056 1,291,577 1,415,721 105,108 169,221 -638,704 -126,824 2,216,098 2057 807,949 600,599 52,465 33,376 -1,027,113 -123,865 343,411 2058 541,774 439,164 78,391 26,454 -1,146,168 -119,115 -179,499 2059 503,264 229,194 64,724 25,586 -1,627,673 -114,273 -919,179 2060 435,869 217,320 75,042 19,353 -1,597,610 -111,590 -961,617 2061 449,783 308,906 122,761 34,990 -1,363,117 -110,530 -557,207 2062 501,922 357,723 80,757 28,658 -1,643,414 -110,538 -784,892 2063 820,754 1,111,099 135,039 103,344 -898,437 -113,406 1,158,393 2064 871,279 1,174,447 124,818 42,092 -868,913 -122,551 1,221,172 2065 511,277 358,753 43,942 18,276 -1,750,481 -120,972 -939,204 2066 454,845 222,078 77,969 36,483 -2,077,330 -112,479 -1,398,433 2067 531,138 323,961 73,264 22,151 -1,832,363 -113,339 -995,189 2068 672,372 689,792 138,150 60,396 -1,265,870 -116,258 178,5 2451 -733,283 -129,909 2,326 076 �6 oVSimFG«ern Water Budgets Table zo'Projected Future Groundwater Budget for Kern County Subbasin under 2030 Climate Conditions with NO SGIVIA Projects based on C2VSimFG-Kern Simulation WaterYear Deep Percolation Managed Recharge and Canal Seepage Net GW/SW krteractions Small Watershed inflow L Pumping Subsurface Flow With Adjacent GW Basins Changeln Groundwater Storage Units Acre -ft Acre -ft I Acre -ft Acre -ft I Acre -ft Acre -ft Acre -ft Total 30,885,1591 30,404,9981 6,083,3821 2,517,3931 -85,792,9961 -3,318,6181 -19,220,714 Average 617,7031 608,1001 121,6681 50,3481 -1,715,8601 -66,3721 -384,414 SUMMARY: WY2021 to WY2040 Implementation Period Total 1 11,956,3601 12,006,3821 2,488,9421 967,0111 -33,772,9591 -1,439,4201 -7,793,706 Average 1 597,8181 600,3191 124,447 48,3511 -1,688,6481 -71,9711 -389,682 SUMMARY: WY2041 to WY2070 Sustainability Period Total 1 18,928,7991 18,398,6171 3,594,4401 1,550,3821 -52,020,0371 -1,879,1981 -11,427,008 Average 630,9601 613,2871 119,8151 51,6791 -1,734,0011 -62,6401 -380,900 Annual Simulation Results for WY2021 to WY2070 Simulation Period 2021 422,205 264,773 147,393 42,134 -1,686,375 -82,161 -892,031 2022 486,382 352,708 97,994 31,229 -1,966,104 -77,718 -1,075,519 2023 670,731 968,807 192,300 100,122 -1,194,263 -75,163 662,531 2024 724,438 1,015,022 177,313 64,551 -1,153,552 -78,823 748,944 2025 451,579 327,176 67,822 18,068 -2,002,002 -75,206 -1,212,569 2026 443,127 213,524 132,483 37,800 -2,325,127 -67,041 -1,565,234 20271 508,495 246,268 115,977 23,732 -2,151,549 -65,434 -1,322,507 2028 572,490 566,005 191,408 39,445 -1,651,430 -65,956 -348,038 2029 1,218,648 1,901,727 112,842 122,295 -1,104,305 -76,600 2,174,607 2030 553,673 532,639 51,185 19,641 -1,476,524 -74,857 -394,243 2031 521,194 199,452 76,829 18,143 -2,339,207 -68,717 -1,592,305 2032 453,699 143,631 46,557 17,968 -2,788,464 -60,558 -2,187,167 2033 743,629 915,198 182,822 122,210 -1,190,116 -67,058 706,686 2034 615,276 872,000 147,377 45,764 -1,543,359 -73,439 63,619 2035 736,533 843,258 281,587 55,297 -1,297,450 -77,197 542,029 2036 863,933 1,264,065 123,884 102,926 -1,044,324 -79,069 1,231,416 2037 542,139 510,531 72,919 32,384 -1,342,279 -75,848 -260,154 2038 507,189 428,732 81,591 27,413 -1,503,202 -70,781 -529,059 2039 482,914 213,280 87,387 26,084 -2,017,703 -65,709 -1,273,748 2040 438,087 227,586 101,273 19,804 -1,995,626 -62,086 -1,270,964 2041 462,417 263,946 147,623 39,151 -1,702,404 -60,765 -850,032 2042 532,326 354,460 98,221 31,228 -2,012,621 -59,960 -1,056,345 2043 717,292 967,381 179,212 103,193 -1,243,088 -59,869 664,119 2044 766,402 1,015,346 117,742 65,724 -1,204,632 -65,643 694,939 2045 477,463 326,770 51,863 18,138 -2,051,621 -63,896 -1,241,282 2046 465,642 213,337 132,843 37,870 -2,374,509 -57,074 -1,581,891 2047 526,192 246,482 116,132 23,946 -2,201,023 -56,606 -1,344,877 2048 584,963 564,936 191,656 39,636 -1,700,745 -57,895 -377,449 2049 1,218,687 1,904,385 99,805 124,949 -1,152,654 -69,447 2,125,726 2050 560,761 533,577 47,140 19,693 -1,524,426 -68,362 -431,617 2051 531,733 199,452 76,920 18,193 -2,385,216 -62,565 -1,621,483 2052 469,853 139,904 46,651 17,931 -2,807,543 -54,827 -2,188,030 2053 748,982 916,702 183,503 123,682 -1,235,658 -61,582 675,628 2054 618,472 870,588 145,806 45,880 -1,587,472 -68,329 24,946 2055 736,517 843,485 279,382 55,392 -1,341,090 -72,519 501,167 2056 954,438 1,263,249 134,078 169,164 -1,037,331 -74,710 1,408,888 2057 579,927 508,121 73,014 33,640 -1,384,414 -71,487 -261,199 2058 532,403 431,547 81,726 27,628 -1,544,662 -66,368 -537,727 2059 503,820 214,669 87,386 26,299 -2,057,978 -61,126 -1,286,930 2060 456,299 228,154 101,178 19,792 -1,984,645 -57,872 -1,237,094 2061 478,968 264,126 147,695 39,158 -1,742,970 -56,708 -869,739 2062 546,856 353,554 98,263 31,426 -2,052,889 -55,984 -1,078,775 2063 740,448 969,075 181,599 104,939 -1,284,313 -56,141 655,606 2064 735,683 1,013,851 124,774 41,649 -1,277,235 -62,203 576,518 2065 478,349 327,088 54,630 18,289 -2,092,701 -60,730 -1,275,076 2066 473,836 213,074 132,845 37,782 -2,406,519 -57,164 -1,606,144 2067 537,374 246,454 116,277 23,923 -2,231,035 -58,641 -1,365,648 2068 660,267 565,258 192,661 65,542 -1,647,974 -59,014 -223,2 oVSimFG«ern Water Budgets Table zy'Projected Future Groundwater Budget for Kern County Subbasin under 2030 Climate Conditions WITH SGIVIA Projects based on C2VSimFG-Kern Simulation WaterYear Deep Percolation Managed Recharge and Canal Seepage Net GW/SW krteractions Small Watershed inflow L Pumping Subsurface Flow With Adjacent GW Basins Changeln Groundwater Storage Units Acre -ft Acre -ft I Acre -ft Acre -ft I Acre -ft Acre -ft Acre -ft Total 32,838,9791 35,447,2991 4,941,6071 2,517,3931 -73,869,5181 -4,735,9361 -2,860,202 Average 656,7801 708,9461 98,8321 50,3481 -1,477,3901 -94,7191 -57,204 SUMMARY: WY2021 to WY2040 Implementation Period Total 1 12,873,1601 13,719,3061 2,153,0211 967,0111 -30,545,1881 -1,641,6661 -2,474,378 Average 1 643,6581 685,9651 107,651 48,3511 -1,527,2591 -82,0831 -123,712 SUMMARY: WY2041 to WY2070 Sustainability Period Total 1 19,965,8181 21,727,9941 2,788,5861 1,550,3821 -43,324,3311 -3,094,2711 -385,823 Average 1 665,5271 724,2661 92,9531 51,6791 -1,444,1441 -103,1421 -12,861 Annual Simulation Results for WY2021 to WY2070 Simulation Period 2021 436,607 313,191 146,335 42,134 -1,676,044 -81,420 -819,196 2022 495,680 391,450 97,863 31,229 -1,947,388 -76,701 -1,007,874 2023 777,040 1,077,709 179,601 100,122 -1,117,722 -76,444 940,302 2024 808,215 1,130,101 141,980 64,551 -1,088,738 -81,861 974,238 2025 462,701 343,315 61,517 18,068 -1,906,220 -78,953 -1,099,574 2026 439,400 273,084 131,767 37,800 -2,253,887 -70,713 -1,442,550 20271 504,308 306,757 115,891 23,732 -2,068,551 -69,760 -1,187,619 2028 576,402 692,833 189,187 39,445 -1,565,005 -71,313 -138,447 2029 1,371,389 2,070,178 67,647 122,295 -932,879 -84,094 2,614,536 2030 584,511 553,212 37,888 19,641 -1,345,295 -83,321 -233,371 2031 528,715 216,234 76,879 18,143 -2,159,236 -78,674 -1,397,939 2032 447,278 157,578 46,694 17,968 -2,586,970 -72,132 -1,989,585 2033 822,633 1,099,092 179,078 122,210 -954,120 -79,949 1,188,943 2034 642,235 1,002,883 120,224 45,764 -1,314,339 -88,379 408,386 2035 882,067 1,046,864 225,239 55,297 -1,036,291 -94,244 1,078,932 2036 1,079,981 1,496,375 67,732 102,926 -748,234 -98,400 1,900,379 2037 618,298 565,459 31,639 32,384 -1,137,009 -94,427 16,344 2038 503,029 481,733 53,082 27,413 -1,262,856 -89,986 -287,584 2039 473,864 246,867 81,296 26,084 -1,751,020 -86,330 -1,009,239 2040 418,807 254,393 101,481 19,804 -1,693,383 -84,564 -983,462 2041 444,811 315,197 147,563 39,151 -1,429,438 -83,810 -566,526 2042 514,255 397,576 97,317 31,228 -1,723,016 -83,907 -766,546 2043 816,698 1,163,940 134,478 103,193 -969,015 -86,356 1,162,938 2044 847,571 1,197,675 50,668 65,724 -949,162 -94,611 1,117,864 2045 471,125 348,281 32,446 18,138 -1,769,470 -93,309 -992,789 2046 446,314 276,979 132,424 37,870 -2,116,321 -86,037 -1,308,771 2047 507,943 310,952 116,190 23,946 -1,951,408 -86,246 -1,078,625 2048 570,746 737,315 190,434 39,636 -1,454,664 -89,846 -6,380 2049 1,365,299 2,126,760 34,358 124,949 -846,645 -103,976 2,700,745 2050 579,883 565,192 23,802 19,693 -1,287,166 -103,007 -201,604 2051 538,250 227,799 76,822 18,193 -2,083,539 -98,472 -1,320,948 2052 464,011 164,305 46,977 17,931 -2,493,990 -92,183 -1,892,949 2053 839,476 1,136,728 177,834 123,682 -921,588 -100,638 1,255,494 2054 659,537 1,032,674 98,253 45,880 -1,258,249 -110,065 468,030 2055 903,882 1,081,677 208,421 55,392 -1,002,340 -116,311 1,130,721 2056 1,216,310 1,529,332 56,914 169,164 -718,274 -120,237 2,133,209 2057 673,501 569,268 16,245 33,640 -1,122,622 -115,686 54,346 2058 522,020 489,739 44,186 27,628 -1,253,276 -110,474 -280,179 2059 481,112 252,996 77,161 26,299 -1,749,204 -105,946 -1,017,581 2060 429,670 259,054 101,488 19,792 -1,652,713 -103,828 -946,537 2061 447,419 318,905 147,790 39,158 -1,437,034 -102,731 -586,494 2062 515,397 400,090 96,110 31,426 -1,726,653 -102,439 -786,068 2063 822,203 1,186,122 125,545 104,939 -982,407 -105,263 1,151,138 2064 812,383 1,217,000 39,194 41,649 -986,296 -114,017 1,009,913 2065 461,447 351,690 27,964 18,289 -1,789,318 -112,105 -1,042,033 2066 449,867 280,211 132,607 37,782 -2,125,316 -106,826 -1,331,675 2067 511,035 314,307 116,486 23,923 -1,960,796 -107,878 -1,102,923 2068 651,081 758,626 191,836 65,542 -1,393,447 -109,878 163,7 1 20701 585:T21 0641 8�811 , 5 -123,42271 -2 :23861 oVSimFG«ern Water Budgets Table zo'Projected Future Groundwater Budget for Kern County Subbasin under 2070 Climate Conditions with NO SGIVIA Projects based on C2VSimFG-Kern Simulation WaterYear Deep Percolation Managed Recharge and Canal Seepage Net GW/SW krteractions Small Watershed inflow L Pumping Subsurface Flow With Adjacent GW Basins Changeln Groundwater Storage Units Acre -ft Acre -ft I Acre -ft Acre -ft I Acre -ft Acre -ft Acre -ft Total 30,266,9071 32,824,2181 5,541,0961 2,495,1221 -92,372,5221 -3,271,4631 -24,516,680 Average 605,3381 656,4841 110,8221 49,9021 -1,847,4501 -65,4291 -490,334 SUMMARY: WY2021 to WY2040 Implementation Period Total 1 11,792,9181 12,994,5271 2,263,1921 960,5861 -36,385,3581 -1,447,6721 -9,821,843 Average 589,6461 649,7261 113,160 48,0291 -1,819,2681 -72,3841 -491,09� SUMMARY: WY2041 to WY2070 Sustainability Period Total 1 18,473,9881 19,829,6911 3,277,9041 1,534,5361 -55,987,1641 -1,823,7911 -14,694,837 Average 615,8001 660,9901 109,2631 51,1511 -1,866,2391 -60,7931 -489,828 Annual Simulation Results for WY2021 to WY2070 Simulation Period 2021 408,652 250,550 140,163 38,275 -1,842,475 -83,663 -1,088,499 2022 472,102 369,832 95,673 30,903 -2,096,387 -78,608 -1,206,496 2023 673,989 1,058,910 189,890 97,206 -1,367,109 -76,560 576,325 2024 744,177 1,122,749 154,523 64,640 -1,269,966 -81,123 734,995 2025 434,940 339,216 62,383 18,095 -2,093,637 -77,242 -1,316,253 2026 469,752 316,670 142,130 42,165 -2,392,400 -68,542 -1,490,227 20271 468,805 219,342 111,136 22,713 -2,302,101 -66,245 -1,546,351 2028 565,266 622,490 194,932 37,491 -1,777,664 -66,172 -423,661 2029 1,232,895 2,021,954 94,628 120,391 -1,272,882 -75,969 2,121,016 2030 512,383 510,545 46,067 18,406 -1,606,048 -73,952 -592,602 2031 514,885 217,243 80,080 18,510 -2,404,879 -69,108 -1,643,271 2032 420,919 109,243 41,157 17,864 -2,961,316 -59,737 -2,431,871 2033 717,704 983,283 185,465 124,666 -1,366,638 -66,770 577,711 2034 636,472 1,011,310 124,135 48,403 -1,629,020 -73,691 117,609 2035 742,442 926,830 240,059 52,829 -1,506,120 -76,785 379,255 2036 840,589 1,369,821 66,325 95,355 -1,236,377 -78,889 1,056,824 2037 511,349 550,855 51,377 33,462 -1,460,435 -75,693 -389,084 2038 525,422 516,749 68,512 30,839 -1,615,455 -70,944 -544,878 2039 486,185 261,453 84,925 29,526 -2,078,540 -66,064 -1,282,515 2040 413,990 215,482 89,632 18,846 -2,105,907 -61,915 -1,429,871 2041 434,872 249,759 141,456 34,801 -1,861,023 -59,685 -1,059,819 2042 506,082 371,490 95,431 30,811 -2,143,228 -58,424 -1,197,837 2043 701,042 1,057,536 164,332 99,819 -1,415,545 -58,898 548,287 2044 765,882 1,123,035 84,872 65,709 -1,321,033 -65,596 652,868 2045 457,199 338,796 43,022 18,140 -2,143,265 -63,760 -1,349,868 2046 491,322 316,422 142,576 42,210 -2,441,728 -56,475 -1,505,673 2047 486,516 219,663 111,300 22,758 -2,350,989 -55,383 -1,566,136 2048 575,922 621,390 195,292 37,553 -1,826,869 -56,367 -453,078 2049 1,207,108 2,024,646 76,576 122,702 -1,321,171 -67,189 2,042,673 2050 516,604 511,479 41,647 18,437 -1,653,603 -66,049 -631,485 2051 524,249 217,243 80,184 18,541 -2,450,881 -61,709 -1,672,374 2052 436,390 105,521 41,256 17,846 -2,980,914 -52,973 -2,432,875 2053 721,385 984,833 185,983 125,947 -1,412,037 -60,560 545,551 2054 637,035 1,010,015 122,314 48,546 -1,673,215 -67,888 76,808 2055 739,029 926,775 240,837 53,236 -1,549,608 -71,550 338,718 2056 916,865 1,369,239 78,789 163,750 -1,223,884 -73,970 1,230,789 2057 542,683 548,446 53,332 34,610 -1,503,509 -70,686 -395,124 2058 550,193 519,512 70,081 31,051 -1,656,729 -65,944 -551,837 2059 506,313 262,783 85,481 29,722 -2,118,584 -60,956 -1,295,243 2060 434,143 216,084 89,721 18,987 -2,098,596 -57,233 -1,396,893 2061 453,048 249,994 141,478 34,761 -1,901,319 -55,229 -1,077,267 2062 522,814 370,621 95,685 30,984 -2,183,537 -54,157 -1,217,590 2063 725,002 1,059,135 169,499 100,139 -1,456,460 -54,936 542,379 2064 737,845 1,121,596 96,738 41,720 -1,390,161 -62,039 545,700 2065 456,525 339,078 47,370 18,277 -2,183,880 -60,597 -1,383,226 2066 498,361 316,005 142,585 41,907 -2,483,011 -53,520 -1,537,673 2067 496,804 219,419 111,431 22,808 -2,393,461 -52,693 -1,595,690 2068 655,939 621,712 196,418 66,128 -1,787,044 -52,309 -299,1 2069 3:K8 1 53 996 45:11651 �8 6 7: 2221 -62,98271 -249 8051 oVSimFG«ern Water Budgets Table zz'Projected Future Groundwater Budget for Kern County Subbasin under 2070 Climate Conditions WITH SGIVIA Projects based on C2VSimFG-Kern Simulation WaterYear Deep Percolation Managed Recharge and Canal Seepage Net GW/SW krteractions Small Watershed inflow L Pumping Subsurface Flow With Adjacent GW Basins Changeln Groundwater Storage Units Acre -ft Acre -ft I Acre -ft Acre -ft I Acre -ft Acre -ft Acre -ft Total 31,799,1291 37,863,2621 4,293,9321 2,495,1221 -79,755,6741 -4,729,6411 -8,033,910 Average 635,9831 757,2651 85,8791 49,9021 -1,595,1131 -94,5931 -160,678 SUMMARY: WY2021 to WY2040 Implementation Period Total 1 12,589,6331 14,705,7371 1,891,0431 960,5861 -32,975,3951 -1,657,2871 -4,485,720 Average 1 629,4821 735,2871 94,552 48,0291 -1,648,7701 -82,8641 -224,28t SUMMARY: WY2041 to WY2070 Sustainability Period Total 1 19,209,4961 23,157,5251 2,402,8891 1,534,5361 -46,780,2791 -3,072,3541 -3,548,190 Average 640,3171 771,9171 80,0961 51,1511 -1,559,3431 -102,4121 -118,273 Annual Simulation Results for WY2021 to WY2070 Simulation Period 2021 416,859 299,174 140,033 38,275 -1,829,917 -83,068 -1,018,646 2022 482,771 408,716 95,545 30,903 -2,075,055 -77,724 -1,134,857 2023 778,119 1,167,829 176,974 97,206 -1,283,726 -78,065 858,337 2024 824,224 1,237,834 116,452 64,640 -1,201,267 -84,296 957,582 2025 444,081 355,471 55,004 18,095 -1,995,258 -81,218 -1,203,834 2026 466,475 376,346 141,087 42,165 -2,313,156 -72,774 -1,359,861 20271 464,976 279,425 111,024 22,713 -2,213,764 -70,681 -1,406,307 2028 569,538 749,332 192,740 37,491 -1,685,558 -71,949 -208,410 2029 1,366,993 2,190,420 41,284 120,391 -1,077,423 -84,620 2,557,045 2030 534,178 531,150 29,555 18,406 -1,464,690 -82,917 -434,320 2031 519,704 234,003 79,675 18,510 -2,224,205 -79,250 -1,451,562 2032 415,122 123,188 41,020 17,864 -2,750,519 -71,829 -2,225,156 2033 783,412 1,166,531 179,799 124,666 -1,109,329 -80,416 1,064,663 2034 658,731 1,142,196 88,031 48,403 -1,395,221 -89,128 453,011 2035 863,103 1,130,070 184,994 52,829 -1,232,204 -94,328 904,464 2036 1,029,800 1,602,138 12,470 95,355 -917,373 -98,485 1,723,905 2037 570,198 605,678 8,505 33,462 -1,243,785 -94,402 -120,345 2038 523,835 569,446 34,689 30,839 -1,363,512 -90,407 -295,110 2039 479,164 294,676 72,792 29,526 -1,805,973 -86,949 -1,016,764 2040 398,352 242,115 89,372 18,846 -1,793,459 -84,780 -1,129,554 2041 414,818 301,192 141,646 34,801 -1,568,913 -83,592 -760,049 2042 491,990 414,742 93,845 30,811 -1,840,528 -83,323 -892,462 2043 790,613 1,254,107 115,429 99,819 -1,116,588 -86,323 1,057,057 2044 836,403 1,305,369 17,905 65,709 -1,045,824 -95,401 1,084,162 2045 449,154 360,429 22,817 18,140 -1,852,116 -93,998 -1,095,574 2046 471,989 380,169 142,402 42,210 -2,176,184 -86,568 -1,225,983 2047 471,984 283,737 111,550 22,758 -2,085,163 -85,737 -1,280,870 2048 554,428 793,776 194,145 37,553 -1,568,985 -88,857 -77,939 2049 1,321,092 2,246,987 3,572 122,702 -987,606 -102,881 2,603,867 2050 524,857 543,145 12,030 18,437 -1,398,511 -101,367 -401,409 2051 526,155 245,563 79,307 18,541 -2,147,741 -98,008 -1,376,184 2052 430,658 129,919 41,236 17,846 -2,649,533 -91,211 -2,121,085 2053 792,109 1,204,216 177,747 125,947 -1,064,253 -100,431 1,135,335 2054 668,348 1,172,104 66,220 48,546 -1,336,993 -110,282 507,943 2055 860,469 1,164,599 170,576 53,236 -1,194,626 -115,992 938,261 2056 1,144,616 1,635,346 2,390 163,750 -873,811 -120,178 1,952,112 2057 610,598 609,490 -6,003 34,610 -1,226,393 -115,425 -93,124 2058 546,965 577,365 26,400 31,051 -1,353,145 -110,712 -282,076 2059 486,798 300,706 68,354 29,722 -1,802,615 -106,347 -1,023,382 2060 409,456 246,809 89,277 18,987 -1,751,495 -103,792 -1,090,757 2061 418,628 304,951 141,821 34,761 -1,574,579 -102,407 -776,824 2062 495,173 417,295 92,534 30,984 -1,842,095 -101,824 -907,934 2063 793,354 1,276,196 108,214 100,139 -1,128,328 -105,241 1,044,334 2064 805,281 1,324,749 9,903 41,720 -1,082,528 -114,909 984,217 2065 440,536 363,793 19,730 18,277 -1,870,357 -113,021 -1,141,042 2066 471,618 383,251 141,837 41,907 -2,193,139 -104,993 -1,259,519 2067 473,770 286,942 111,773 22,808 -2,105,041 -103,867 -1,313,616 2068 625,100 815,113 195,615 66,128 -1,516,065 -105,894 79,9 2069 3: 2,�2466 123881 1,701 171 5: -121,01 2,46i149:328 i oVSimFG«ern Water Budgets Z O Y � LL 3 E !/) T N 3 u 0 O i � Y to d L +O+ L L h 4J 0 3 L fC G G d � h 0 lb,O 3 i +� bb C r_ m m ci u O 0 a+ r G yl d s E L N r a � N i N w J m C 0a0 S '.. O C O) 01�D T LL N N n M M ^!1 t1 M 00 rq 't N M 01 w M N n 00 t!1 V 0 S0 = O O 00 O cl' N I, O 00 rn lD m rlj N CO N YJ 0 4 Y Ji O 4 N NO E+ c u,' O O n O�D O n m O O 3 E C `00 m Q LL Q rlj N N CO Q Q o N' 0 Z z', O lO t!1 M w N 00 N M O w 01 Cl N (UN �0 LL ODi 111 Ln ClD q�, C N N N M 40 0 _ m 3 ° tsl a in �^ m 0 Y u5 Q1 78 � to V O N 00 M f} L N N 01 N ORiOf Cl 001 rl 01 O LL N M M N O vy t7 N N v N C '= N v v 'o ,v o ,v O fA v O a U ti (J a- 0 O 2 m m O O C14 O C14 OC14 H O z M. Y 0v O E Y N � .O Q Y (6 C C Q o Y `o C: 4- O v O O Y E 3 Y E _ °O_ Y O Y O 'y � V O N O 'O 'O . O O 4t � O N V Y C C v 3 u O N E p y O U O E Y yv O N O � � C aj Y C O (0 u - O E N o O o Ev j o Y c v c O O V(7 0 6 .� an E N _ O O O ° V Y_ C cn N bD L O v O Y a 2 E'c •_ Y�6 m a.. w v O- 0 v F N Y i_N U E v n'M C Y Y u N u y.2 N O c E Y •'= v ° H C =�o•vv> aj 0 Q C m twv y a O f0 Y O N E ° > E -° O ='a tY6 > 0 0 3 a v .� 3 TABLE 23: Evaluation of Sustainable Yield for Projected -Future scenarios based on C2VSimFG-Kern Model Results for Kern County Subbasin Scenario Total groundwater pumping by wells. Groundwater banking recovery pumping is specified input whereas C2VSlmFG-Kern 2041-2070 Model Results Sustainability Period , Change in Sum of the inflow components (positive numbers) plus the outflow components (negative numbers): positive Change In Groundwater Groundwater in Pumping Storage ! GW Storage Adjustments Average Annual Sustainable i Difference of Yield Pumping to Yield Percent Difference of Pumping to Sustainable Yield units AFY AFY AFY AFY AFY AFY Historic 1,590,373 -277,114 0 1,313,259 -277,114 -21% The percentage of the Average Annual Difference to the total groundwater pumping to provide context and a Percent Difference method to compare the significance of the difference in the pumping copmared to the sustainable yield. Baseline 1,624,694 -324,326 0 1,300,369 -324,326 -25% Baseline Projects 1,354,088 42,144 43,434 1,439,666 85,578 6% 2030 Climate 1,734,001 -380,900 8,780 1,361,881 -372,120 -271/6 2030 Projects 1,444,144 -12,861 59,690 1,490,974 46,829 3% 2070 Climate 1,866,239 -489,828 17,492 1,393,902 -472,336 -34% 2070 Projects 1 1,559,343 1 -118,273 1 72,304 1 1,513,373 1 -45,969 1 -3% NOTES: Groundwater Total groundwater pumping by wells. Groundwater banking recovery pumping is specified input whereas Pumping agricultural and municipal pumping is calculated by C2VSim based on demand Change in Sum of the inflow components (positive numbers) plus the outflow components (negative numbers): positive Groundwater in is an increase in storage typified by a rise in GW levels whereas a negative is a decrease in storage typified by Storage a decline in GW levels Adjusted Banking Adjustment that assumes that recharge operations are affected by reductions in imported water sources, but GW Storage Adjustment to GW Storage that reflect artifacts of the simulation. For Kern County, adjustments made to Adjustments reflect no SGMA projects simulated north of Kern County, and that Kern River operations are not optimized to Sustainable yield is defined is the amount of pumping that can be sustained in the groundwater basin without Sutainable Yield the undesirable effect of a decline in groundwater storage that serves as a proxy for other undesirable effects Average Annual The difference between the sustainable yield and the simulated groundwater pumping. A negative value is Difference pumping in excess of the sustainable yield The percentage of the Average Annual Difference to the total groundwater pumping to provide context and a Percent Difference method to compare the significance of the difference in the pumping copmared to the sustainable yield. C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER TABLE 24: Summary of Statistical Analysis for Validation of C2VSimFG-Kern Historical Simulation Validation Measure CZVSimFG-Kern CZVSImFG-Beta Percent Change Units Feet Feet Percent Residual Mean 17.3 ft 32.6 ft 47% Residual Standard Deviation 45.5 ft 54.0 ft 16% Absolute Residual Mean 37.4 ft 56.8 ft 34% Root Mean Square (RMS) Error 50 ft 73.5 ft 32% Scaled Absolute Residual Mean 0.061 0.092 34% Correlation Coefficient 0.76 0.52 47% Number of Monitor Wells 558 558 same Number of Observations 42,075 42,075 same Notes Observation Point Location in the model where measured data from well is compared to simulated model results Residual Difference between measured and simulated groundwater elevations at an observation point Statistical measure of fit of simulated to measured data using sum of the residuals divided by Residual Mean the number of residual data values Residual Standard Deviation Statistical evaluation of the scatter of the data by calculating standard deviation of residuals Statistical measure of fit of simulated to measured data using sum of the absolute value Absolute Residual Mean residuals divided by the number of residual data values Statistical measure of fit of simulated to measured data using square root of the quotient of Root Mean Square (RMS) Error sum of squares of residuals by the number of observations Statisical measure to provide scale of validation using ratio of the absolute residual mean Scaled Absolute Residual Mean divided by the range of observed groundwater elevations Scaled measure of the closeness of fit of simulated to measured data from -1 to 1 correlation Correlation Coefficient with 1.0 a perfect correlation Number of wells where measured groundwater level data was compared to C2VSimFG-Kern Number of Monitor Wells simulation results for model validation Number of groundwater level measurements that were compared to C2VSimFG-Kern simulation Number of Observations results for model validation C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER G C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA TODD GROUNDWATER o FZ Na �Q " Y I r to Q LU LI o o N co a LL d�I t9 1 z � cif r caz� r° m f Qi -IJ �b y / C , k� Ir. 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Y'M. ,,. ,_. ..._ m ........ r.._ ....-. 30 1L 5. c rc i� w wb,w 7z" 38 semi w'w S Myy w x, 32 M't .'.., dam' o 30 8 36 Sy 13 35 ci, M 34 ✓yy,r ppb 3,per 3 '15 32 CO 01.8 to 1 a,, Parameter Change Notes: Sensitivity parameters modified and evaluated for Kern County Subbasin Kh — horizontal hydraulic conductivity of aquifer Kv —vertical hydraulic conductivity of aquifer Kcorc - horizontal hydraulic conductivity of Corcoran Clay aquitard or equivalent Cstm — streambed conductance of Kern River and Poso Creek Ss — specific storage of aquifer Sy — specific yield of aquifer Ksoil —soil hydraulic conductivity in root zone A -soil pore size distribution index in root zone December 2019 Figure 23 TODDIM C2VSimFG-Kern Sensitivity Analysis Results R 0 U IN DWA,r ATTACII I MIllfllllr UVSimFG-11(ern IIA h ,,, l Monitoring ll in I111(ern CountySubbasin for Projected Future Water Budget Simulations C2VSimFG-Kern Water Budgets Kern County Subbasin SGMA 1 TODD GROUNDWATER 0 V r QpY "0 N N o z z o o o o l to to M M C\ C\ o o o o II �> I II II 0.0 r jo u I I I I I y � II II II ... ... .... .... ,... ... .... .... , IIr 'y II II II f I I I n IIS II II II If I I I I I I O O O O O O In O Ln O M N N r -I r -I I O r- 0 N rall O Ln O N N O O N O M O N O N O N 0 _... ____ ------U-------- 7 ... ... ... ... ... ... ... ... ... �... ... ... ... | � 1 1 � o 0 o o m o oo u0 nn nn nn nn m m (|SUUzU PgDH 11 o Ln o N m m-� � -�o �� m C:C:oo �m m Q) C: m m CL_CL /� � m C:� m m m oo \0, /� � - |- ' -- -- -- .�mm � — �mm0000 m m 0000 nn nn r, r, m _... ____ ------U-------- 7 ... ... ... ... ... ... ... ... ... �... ... ... ... | � 1 1 � o 0 o o m o oo u0 nn nn nn nn m m (|SUUzU PgDH 11 o Ln o N 0 LU Q M O O Q f6 L L i= Ul O Q L Q L 4 LL U O L L v LL Ln N U i V 70N N I 0 V O C O a = a a� c c CO m ~ a) a)- o o o o o 0 o o r 0 ay ' 1 'I I O O O O O Ln O Ln O Ln ICII ICII M M N O r- 0 N 1 O Ln O N O M O N O N O N 0 tl') LU Q O O Q f6 L O L O Ul O Q L Q L LL 1 ^6 W a -J ^U W O L L U - i!) 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Critical Infrastructure shall mean facilities which are utilized to provide public services such as water utilities and or transportation service for a re ion. Prolonged Drought — The undesirable results herein take into account the accommodation of a prolonged drought as defined in DWR's BMP. Chronic Lowering of Water Levels — The point at which significant and unreasonable impacts over the planning and implementation horizon, as determined by depth/elevation of water, affect the reasonable and beneficial use of, and access to, groundwater by overlying users. This is determined when the minimum threshold for groundwater levels are exceeded in at least three(3) adjacent management areas that represent at least 15% of the subbasin or greater than 30% of the subbasin (as measured by each Management Area). Minimum thresholds shall be set by each of the management areas through their respective Groundwater Sustainability Plans. Groundwater Stora e — The point at which significant and unreasonable impacts, as determined by the amount of groundwater in the basin, affect the reasonable and beneficial use of, and access to, groundwater by overlying users over an extended drought period. (10 -years?) This is determined when the volume of storage (above the groundwater level minimum thresholds) is depleted to an elevation lower than the groundwater level minimum threshold in at least three(3) adjacent management areas that represent at least 15% of the subbasin or greater than 30% of the subbasin (as measured by the acreage of each Management Area). Minimum thresholds shall be set by each of the management areas through their respective Groundwater Sustainability Plans. Degraded Water ua1A Trends — The point at which significant and unreasonable impacts over the planning and implementation horizon, as caused by water management actions, that affect the reasonable and beneficial use of, and access to, groundwater by overlying users. This is determined when the minimum threshold for a groundwater quality constituent of concern is exceeded in at least three(3) adjacent management areas that represent at least 15% of the subbasin or greater than 30% of the designated monitoring points within the basin. Minimum thresholds shall be set by each of the management areas through their respective Groundwater Sustainability Plans. Land Subsidence Trends — The point at which significant and unreasonable impacts, as determined by a subsidence rate and extent in the basin, that affects the surface land uses or critical infrastructure. This is determined when subsidence results in significant and unreasonable impacts to critical infrastructure as indicated by monitoring points established by a basin wide coordinated GSP subsidence monitoring plan. Monitoring Network & Protocols Monitoring Network shall be developed to be capable of collecting sufficient data to demonstrate short-term, seasonal, and long-term trends in groundwater and related surface conditions, and yield representative information about groundwater conditions as necessary to evaluate Plan implementation. The monitoring network objectives shall be implemented to accomplish the following: 1) Demonstrate progress toward achieving measurable objectives described in the Plan 2) Monitor impacts to the beneficial uses and users of groundwater 3) Monitor changes in groundwater conditions relative to measurable objectives and minimum thresholds 4) Quantify annual changes in water budget components Monitoring Network shall be designed to ensure adequate coverage of sustainability indicators. If management areas are established, the quantity and density of monitoring sites in those areas shall be sufficient to evaluate conditions of the basin setting and sustainable management criteria specific to that area. To the extent possible, the use of existing monitoring data and infrastructure should be utilized to meet the needs for characterization, historical record documentation and continued monitoring requirements. Monitoring Network shall describe the scientific rationale for the monitoring site selection and for each sustainability indicator, the quantitative values for the minimum threshold, measurable objective and interim milestones shall be indicated at each monitoring site. Monitoring Protocols developed shall include a description of technical standards, data collection methods, and other procedures or protocols for monitoring sites or other data collection facilities to ensure that the monitoring network utilizes comparable data and methodologies. There is no definitive rule for the density of groundwater monitoring points needed in a basin. The table below provides guidance for the density of monitoring wells per hundred square miles. One important item to consider is how the definitions of undesirable results will be impacted to provide the necessary information to indicate compliance. Reference Monitoring Well Density (wells per 100 miles2 ) Heath (1976) 0.2-10 Sophocleous (1983) 6.3 Basins pumping more than 10,000 acrefeet/year per 100 miles 4.0 Basins pumping between 1,000 and 10,000 acre-feet/year per 2.0 100 miles Basins pumping between 250 and 1,000 acre-feet/year per 100 1.0 miles Basins pumping between 100 and 250 acre-feet/year per 100 0.7 miles Measuring Groundwater Levels Given the significant variations in groundwater elevations throughout the Kern subbasin which are due to variations in hydrologic conditions, no single groundwater elevation surface should be considered a representation of groundwater flow directions in this basin. Requirements for well selections: A long-term access agreement that includes year-round site access to allow for increased monitoring frequency A unique identifier that includes a general written description of the site location, date established, access instructions and point of contact, type of information to be collected, latitude, longitude and elevation Monitoring location should also track all modifications to the site in a modification log The following data collection protocols are to be followed within the Kern subbasin: • Groundwater level data shall be sufficient to produce seasonal maps of potentiometric surfaces or water table surfaces throughout the basin that clearly identify changes in groundwater flow direction and gradient. • Use the Well Data form provided (see attached) • Groundwater level data shall be collected from each principal aquifer in the basin • Collection of data between the approved time frames only o January 15th to March 301h o September 15th to November 15th • A weighted water level meter or other CASGEM approved measuring device will be used to measure the depth to groundwater • Depth to groundwater must be measured relative to an established Reference Point on the well casing. If no mark or reference point is apparent, the person performing the measurement should measure the depth to groundwater from the north side of the top of the well casing • The elevation of the Reference Point of the well must be referenced to the North American Vertical Datum of 1988. The accuracy of the reference point should be consistent with CASGEM established guidelines. • Each well's Reference Point will be cataloged to ensure identical procedures are followed for subsequent measurements. • The data collector should remove the appropriate cap, lid or plug that covers the monitoring access point listening for pressure release. If a release is observed, the measurement should follow a period of time to allow the water level to equilibrate. • Depth to groundwater must be measured to the accuracy associated with the approved monitoring method or device. • The water level meter shall be decontaminated after measuring each well. • The data collector shall calculate the groundwater elevation as: o GWE = RPE — DTW o GWE = Groundwater Elevation o RPE = Reference Point Elevation o DTW = Depth to Water • The data collector must ensure that all measurements are consistent units of feet, tenths of feet or hundredths of feet. Measurements and Reference Point Elevations should not be recorded in feet and inches. Groundwater Quality Groundwater quality monitoring networks shall be designed to demonstrate that the degraded water quality sustainability indicator is being observed for the purpose of meeting the definition of the sustainability goal. Requirements for well selections: • A long-term access agreement that includes year-round site access to allow for increased monitoring frequency • A unique identifier that includes a general written description of the site location, date established, access instructions and point of contact, type of information to be collected, latitude, longitude and elevation • Monitoring location should also track all modifications to the site in a modification log • The use of existing water quality data within the basin should be done to the greatest extent possible • Monitoring network should consist largely as a supplemental monitoring locations where known groundwater contamination plumes are under existing regulatory management The following data collection protocols are to be followed within the Kern subbasin: • Monitor groundwater quality data from each principal aquifer in the basin • Data should be sufficient for mapping movement of degraded water quality • Data should be sufficient to assess groundwater quality impacts to beneficial uses and users • Data should be sufficient to evaluate whether management activities are contributing to water quality degradation. • All analyses should be performed by a laboratory certified under the State Environmental Laboratory Accreditation Program • Samples will be collected according to the standards listed in the Standard Methods for the Examination of Water and Wastewater, USGS National Field Manual for the Collection of Water Quality Data • Prior to sampling, the sampler must contact the laboratory to schedule laboratory time, obtain appropriate sampler containers, and clarify any sample holding times or sample preservation requirements • Each well used for groundwater quality monitoring must have a unique identifier. This identifier must appear on the well housing or the well casing to avoid confusion • In the case of wells with dedicated pumps, samples should be collected at or near the wellhead. Samples are not to be taken/collected from storage tanks, at the end of long pipe runs or after any water treatment infrastructure • Samples will be taken/collected only after the appropriate volume of water has been purged from the casing and field parameters have stabilized • Sampler will clean the sampling port and/or sampling equipment. The sampling port and/or sampling equipment must be free of any contaminants • Groundwater elevation in the well should be measured following the protocols described in the groundwater level measuring protocols • Field parameters of pH, electrical conductivity and temperature should be collected for each sample. Lab pH analysis are typically unachievable due to short hold times. • All field instruments should be calibrated daily and evaluated for drift throughout the day • Sample containers should be labeled prior to sample collection. The sample label must include: o Sample ID (well ID) o Sample date and time o Sample personnel o Sample location o Preservative used o Analytes and analytical method • Samples shall be collected under laminar flow conditions. This may require reducing pumping rates prior to sample collection • Samples requiring preservation must be preserved as soon as practically possible • Samples to be analyzed for metals should be field -filtered prior to preservation. Do not collect an unfiltered sample in a preserved container • Samples will be chilled and maintained at 4 C to prevent degradation of the sample • Samples will be shipped under a chain of custody documentation to the appropriate laboratory promptly to avoid violating holding time restrictions • Custody Seal will be used by the field technician if a third -party transportation service is used • A Field Sampling Log will include: o Sampler's identification o Well identification o Climatic conditions o Depth to water prior to purging o Type of purging and sampling device o Purging rate and volume o Relative well yield volume o Field parameter measurements (pH, temperature, EC, DO) o Type and number of samples collected o Date and time collected Change in Groundwater Storage Since the groundwater storage is not a directly measurable condition, it does rely heavily on the collection of accurate groundwater levels. The changes in groundwater levels reflect changes in storage and can thus be estimated with assumptions of thickness of units, porosity, and connectivity. These observations will be essential for use in calculating the water budget. A water budget is a foundational tool used to compile water flows (supplies) and outflows (demands). It is an accounting of the total groundwater and surface water entering and leaving a basin or user - defined area. The difference between flows and outflows is a change in the amount of water stored. Coordination of Water Budget Data to comply with groundwater storage: • Surface water supply • Total water use • Water budget • Sustainable yield The change in the annual volume of groundwater storage between seasonal high conditions shall be quantified in the water budget. Land Subsidence Land subsidence protocols are to be set up to identify the rate and extent of land subsidence, which maybe measured by extensometers, surveying, remote sensing technology, or other appropriate method. To the extent possible, the use of existing data should be utilized. Prior to development of a specific subsidence monitoring network a screening level analysis should be conducted. The screening of subsidence occurrence should include: • Review of the HCM and understanding of grain -size distributions and potential for subsidence to occur • Review of any known regional or correlative geologic conditions where subsidence has been observed. • Review of historic range of groundwater levels in the principal aquifers of the basin • Review of historic records of infrastructure impacts, including but not limited to damage to pipelines, canals, roadways or bridges or well collapse potentially associated with land surface elevation changes • Review of remote sending results such as InSAR or other land surface monitoring data • Review of existing CGPS surveys This basin has decided to work together on this protocol with a consultant to obtain the required data. 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I ST. IRu SBZlI 58u I SO. InfU RflI A Nnl I I — INSW ioaH oxw mi.mm�i wom�auuoui nnn nwiui nnnacn�,�c� Hwawnnai.�svalm,�o mmuerm. TECH N I CAL M EM ORAN D U M TO: Kern County Subbasin GSAs FROM: GEI Consultants, Inc. DATE: October 25, 2019 RE: IMPROVEMENTS TO REGIONAL SUBSIDENCE MONITORING IN THE KERN COUNTY SUBBASIN This memorandum was prepared, in coordination with the Kern County Subbasin GSAs, to fill data gaps in the Kern County Subbasin subsidence monitoring network. It prioritizes areas of interest, at a subbasin- level, that require additional subsidence monitoring. It also includes the design approach and parameters to be monitored, and references DWR guidelines regarding subsidence monitoring design. Background and Purpose The development of a network to monitor sustainability indicators, including subsidence, is one of the requirements of the Groundwater Sustainability Plans (GSPs) to be submitted to the Department of Water Resources (DWR) for compliance with the Sustainable Groundwater Management Act (SGMA). To achieve and comply with the requirements of SGMA as it pertains to subsidence and knowing that in the Kern County Subbasin there lacks sufficient data, this memo was generated for the benefit of the entire Kern Subbasin GSAs as a coordinated effort. In each individual GSPs of the Kern Subbasin, existing land surface elevation and land subsidence monitoring is identified, along with data gaps within the existing network. This memo describes the process and rationale for identifying subsidence areas of interest (AOIs) to address data gaps, the current monitoring network, and the location of future monitoring points. The memo includes the following objectives for monitoring, which are applicable to land subsidence: 1. Demonstrate progress toward achieving measurable objectives described in the management area and throughout the Subbasin; 2. Monitor impacts to the beneficial uses and users of groundwater, surface land uses, and critical infrastructure; and 3. Monitor changes in groundwater conditions (or land subsidence) relative to measurable objectives and minimum thresholds. The monitoring network is designed to monitor impacts to surface land uses or critical infrastructure as stated in the Subbasin-wide definition of undesirable results for land subsidence (KGA, 2019 emphasis added): The point at zvbicb significant and unreasonable impacts, as determined by a subsidence rate and extent in the basin, that affects the surface land uses or critical infrastructure. Tbis is determined zvben subsidence results in significant and unreasonable impacts to critical infrastructure as indicated by monitoring t)oints establisbed by a basin wide coordinated GSP subsidence monitoringt)lan. Improvements to Regional Subsidence Monitoring Kern County Subbasin One of the purposes for improving the subsidence monitoring network is to collect additional data at each AOI to fill data gaps so that sustainable management criteria (SMCs) can be set. As more data are gathered for the AOIs, Kern County Subbasin GSAs and stakeholders can establish SMCs to avoid undesirable results stemming from subsidence. AOI Screening and Monitoring Approach The first step in the subsidence monitoring approach is to identify AOIs based on the presence of critical infrastructure or other surface land uses. These AOIs can then be evaluated based on the decision-making criteria listed below to determine if monitoring is required. This process is illustrated in Figure 1. An AOI requires monitoring if the following three criteria apply: 1. Infrastructure or surface land uses are susceptible to land subsidence. 2. Significant land subsidence has been observed in screening from Interferometric Synthetic - Aperture Radar (InSAR) or other remote sensing techniques. 3. The subsidence is caused by groundwater extraction. Where data gaps exist in evaluating the criteria, additional investigation may be necessary. For example, further investigation at AOI -2 is necessary to evaluate if groundwater extraction is causing subsidence. Monitoring Parameters If the area is identified as an AOI that requires monitoring, then the following actions should be taken: A. Groundwater level monitoring near the AOI, B. Ground-truthing of subsidence detected by InSAR (CGPS, extensometer, or level surveying), and C. Monitoring of the critical infrastructure. As depicted in Figure 1, the process for establishing monitoring points includes locations with susceptible critical infrastructure where InSAR and/or other historical and recent monitoring has detected recent subsidence that is likely caused by groundwater extraction. Regional Coordination Regional coordination of monitoring is key to the design of the network in the subbasin because regional groundwater extraction is a main driver of subsidence. In addition, many of the critical infrastructure are regional and may require coordination for access within the vicinity and data sharing. Subsidence associated with oil and gas activities may also occur in the subbasin. However, any subsidence potentially associated with oil and gas activities is regulated by the California Division of Oil, Gas, and Geothermal Resources (DOGGR) under the California Public Resources Code and is therefore separate from SGMA requirements. Coordination between groundwater and oil and gas stakeholders may be needed where there is potential for both activities to cause subsidence that impacts critical infrastructure. Improvements to Regional Subsidence Monitoring Kern County Subbasin 0/ Ad Figure 1. Subsidence Monitoring Decision Making Process and Criteria. Improvements to Regional Subsidence Monitoring Kern County Subbasin Improvements to Monitoring Network Timeline and Approach Five AOIs were identified, in order of priority, to improve the subbasin monitoring network (AOI -1 to AOI -5). Two of these areas are located along the Friant-Kern Canal (FKC), two are along the California Aqueduct, and one area is for monitoring changes in land surface elevation along the northern boundary of the subbasin where a significant amount of subsidence has been reported in the InSAR data. It is anticipated that these sites will be evaluated in order of priority and may take up to several years to design and implement monitoring points. Each monitoring site design will consider the following: 1. Confirm groundwater extraction is the cause of subsidence (if necessary), 2. Land siting and ownership, 3. Site access, 4. Monitoring design (CGPS or extensometer), 5. Confirmation that data for all three monitoring parameters can be collected (a. groundwater elevations, b. subsidence, and c. condition of infrastructure), and 6. Connection to the monitoring network and data sharing. The subsidence monitoring network AOIs are presented on Figure 2. AOI -1 was selected to monitor along the FKC where subsidence has been detected near the northern boundary of the subbasin. AOI -2 was selected where the California Aqueduct has had historical impacts partially attributed to subsidence. AOI - 3 along the FKC south of Poso Creek has had subsidence detected and reported by the North Kern WSD. AOI -4 along the California Aqueduct has had subsidence reported by DWR Division of Engineering (DOE) and InSAR, and AOI -5 along the northern boundary of the subbasin is not associated with critical infrastructure but is the location of high cumulative subsidence at the boundary of the subbasin and may be indicative of conditions in the neighboring subbasins which have the potential to impact the conditions of the Kern County Subbasin. Groundwater Elevations A key parameter in evaluating subsidence as a sustainability indicator for groundwater management is understanding groundwater level changes with respect to subsidence, particularly regional changes in water level. Figure 3 presents the regional water level monitoring points (RMWs) from the draft GSP with respect to the five AOIs for subsidence monitoring. The following are observations of RMWs within AOI vicinity: • AOI -1 has a few surrounding RMWs; however, none are within 1 mile of the FKC. • AOI -2 has one RMW within a mile of the Aqueduct and the AOI. • AOI -3 has one RMW in the central portion about 1 mile from FKC. • AOI -4 has two RMWs within the vicinity of the Aqueduct. • AOI -5 has no RMWs within 1 mile. Improvements to Regional Subsidence Monitoring Kern County Subbasin Recommendation Where possible, subsidence monitoring stations should be installed within 1 mile of a reliable RMW. If necessary, a new RMW may be installed to provide a point at which groundwater level may be collected in proximity to the land surface elevation monitoring point. AOls listed on subsequent pages Improvements to Regional Subsidence Monitoring Kern County Subbasin A0I-1. FKC Milepost 120 to 130 This high priority area is located along the FKC between Mileposts 120 to 130 (Figure 2), east-northeast of the City of McFarland. The purpose of this AOI is to monitor subsidence along the FKC and its related infrastructure. At times, InSAR monitoring has reported up to 5 inches per year of subsidence in areas surrounding this segment of the FKC. At present, no significant impacts to the FKC have been reported along this portion of the canal's alignment. According to leveling survey data from Friant Water Authority (FWA, 2019), the FKC invert may have subsided from 2 ft to 3 ft below original as -built elevations between Mileposts 120 to 135. Continued lowering of the canal invert can decrease freeboard from the original as -built conditions, which may contribute to reduction in emergency storage capabilities and delivery options of the Canal. In contrast, beyond the subbasin's northern boundary, subsidence has caused significant impacts to the FKC conveyance capabilities between Mileposts 101 to 108. Existing Monitoring Figure 4. AOI -1. FKC Milepost 120 to 130 (symbol legend on Figure 2) Currently, this area is screened by InSAR, and previous level surveying was performed by FWA at the mileposts labeled on Figures 2 and 4. There are no other active monitoring points except for InSAR along this stretch. New Monitoring Approach A new CGPS station that monitors at the ground surface any subsurface subsidence, regardless of the depth interval, is recommended because the only known cause of subsidence in this area is attributed to groundwater extraction. This CGPS data will complement any manual level surveys that may incorporate the FWA reported measuring points. CGPS data may also provide on -demand data as needed. Coordination of Monitoring Subsidence monitoring along the FKC benefits local stakeholders, CVP contractors, and the FWA. It is anticipated that this monitoring can be coordinated with FWA to share data as well as potentially share resources and cost. Any level surveying along the canal from the United States Bureau of Reclamation (USBR) Friant-Kern benchmarks (Figure 2) will require coordination with the FWA. P Improvements to Regional Subsidence Monitoring Kern County Subbasin A0I-2. California Aqueduct Milepost 196 to 215 This high priority area is the segment of the California Aqueduct where an embankment failure occurred at Milepost 208 in June 2011 (DWR, 2017). This failure is partially attributed to subsidence. The cause of this subsidence is unknown and is therefore a subject of monitoring at this location. This area is along the Aqueduct between Mileposts 196 to 215 in the western central subbasin (Figure 2). In addition to embankment failure, other consequences of subsidence include loss in freeboard in the Aqueduct. This area has experienced at least 2 feet of subsidence since the Aqueduct was constructed. Existing Monitoring Currently, this area is screened by InSAR and is monitored with level surveys every three to seven years by the DWR's DOE. There are no other active monitoring points along this stretch. New Monitoring Approach The source of subsidence, either by groundwater extraction activities or other Figure 5 AOI -2. CA Aqueduct Milepost 196 to 215 (symbol legend on Figure 2) activities, will be investigated by performing well records searches from DWR well completion records, the Kern County Public Health Department well permit records, and the DOGGR's databases. If necessary, a field well survey may be performed. Coordination may be needed with local stakeholders to confirm the magnitude of groundwater extracted within 1 mile of this portion of the Aqueduct's alignment and the volume of fluids extracted and injected by oil and gas activities within 1 mile of this alignment. A third potential source for subsidence in this area could be hydrocompaction, which was identified during the initial design and construction of the Aqueduct. Pre -consolidation of soil was performed during initial construction so hydrocompaction is likely not significant, however, it cannot be ruled out at this time. If it is determined that groundwater extraction is playing a role in subsidence for this area, a monitoring point should be installed away from the footprint of the Aqueduct to avoid potential signatures of hydrocompaction if any exist. If there is question of whether some of the subsidence is related to nearby oil and gas activities, then an extensometer should be installed in the interval where groundwater production occurs. An extensometer will provide data of subsidence pertaining to intervals with groundwater production, whereas a CGPS would capture any subsidence regardless of the depth interval. Coordination of Monitoring Subsidence monitoring along the Aqueduct benefits local stakeholders, State Water Project (SWP) contractors, and the DWR's DOE. It is anticipated that this monitoring can be coordinated with DWR to share data as well as potentially share resources and cost. Improvements to Regional Subsidence Monitoring Kern County Subbasin A0I-3. FKC Milepost 130 to 137 This medium priority area is located along the FKC between Mileposts 130 to 137 (Figure 2), southwest of Famoso and Poso Creek. The purpose of this AOI is to monitor subsidence along the FKC infrastructure where InSAR and local stakeholders have reported subsidence in the surrounding area. As with A0I-1, no significant impacts to the FKC have been reported along this stretch. According to leveling survey data from the FWA (2019), the FKC invert may have subsided from 2 ft to 3 ft below original as -built elevation between Mileposts 120 to 135. Continued lowering of the canal invert can decrease freeboard from the original as -built conditions, which may contribute to reduction in emergency storage capabilities and delivery options of the Canal. Existing Monitoring Currently, this area is screened by InSAR, and previous level surveying was performed by the FWA at Mileposts labeled on Figure 2. Local districts monitor this stretch regularly as labeled on Figures 2 and 6. Currently there are no continuous monitoring points along this stretch. New Monitoring Approach Figure 6. AOI -3. FKC Milepost 130 to 137 (symbol legend on Figure 2) A CGPS station that monitors from the ground surface, any subsurface subsidence regardless of the depth interval, is recommended because the only known cause of subsidence in this area is attributed to groundwater extraction. This CGPS data will complement manual level surveys from local district surveys. CGPS data will also provide nearly on -demand data as needed. Where possible, this station should be tied in to benchmark surveys performed by local districts. Coordination of Monitoring Subsidence monitoring along the FKC benefits local stakeholders, CVP contractors, and the FWA. It is anticipated that this monitoring can be coordinated with FWA to share data as well as potentially share resources and cost. Any level surveying along the canal from USBR Friant-Kern benchmarks (Figures 2 and 6) will require coordination with the FWA. Improvements to Regional Subsidence Monitoring Kern County Subbasin A0I-4. California Aqueduct Milepost 267 to 271 This medium priority area is located along the Aqueduct between Milepost 267 to 271 near Old River Road. InSAR data report subsidence southwest and along I-5 and southwest toward the Aqueduct along Old River Road. A former CGPS station (BKR1 /2) located about 5 miles north of the Aqueduct along Old River Road also reported significant subsidence; however, this station has since been decommissioned (2016). Existing Monitoring Currently, this area is screened by InSAR, and is monitored by level surveying every three to seven years by the DWR's DOE. There are no other active monitoring points along this stretch. New Monitoring Approach Groundwater extraction is potentially the source of subsidence, so a continuous monitoring station such as a CGPS or extensometer will be installed. Other potential sources could be oil and gas Figure 7. AOI -4. CA Aqueduct Milepost 267 to 271 extraction and hydrocompaction. A (symbol legend on Figure 2) DOGGR records search may provide sufficient information to understand the extent of oil and gas extraction in this area. Although hydrocompaction may not be significant because of pre -consolidation practices during Aqueduct construction, nonetheless, in order to avoid potential signatures of hydrocompaction, a monitoring point should be installed away from the footprint of the Aqueduct. If feasible during the siting study, the site location may be selected to the north between the Aqueduct and former BKR1 /2. Where possible, this station should be tied in to benchmark surveys performed by local districts. Coordination of Monitoring Subsidence monitoring along the Aqueduct benefits local stakeholders, SWP contractors, and the DWR's DOE. It is anticipated that this monitoring can be coordinated with DWR to share data as well as potentially share resources and cost. Improvements to Regional Subsidence Monitoring Kern County Subbasin A0I-5. Central -Northern Boundary of Subbasin This medium priority area is in the northern quarter of T25S-R24E and T25S-R25E. Currently, this AOI does not have recognized susceptible critical infrastructure. It has significant subsidence reported both historically (USGS level surveys) and recently (InSAR). A CGPS station in this area will provide a needed ground truthing point to confirm InSAR readings and will act as a useful monitoring point to gauge progress of groundwater management along the border of the subbasin in relation to neighboring subbasins to the north. Existing Monitoring Currently, this area is screened by InSAR. There are no other active monitoring points along this stretch. New Monitoring Approach Groundwater extraction is potentially the source of subsidence, so a CGPS or extensometer monitoring station should be installed. Where possible, this station should be tied in to benchmark surveys performed by local districts. Coordination of Monitoring Figure 8. AOI -5 Central -Northern Boundary of Subbasin (symbol legend on Figure 2) Subsidence monitoring along the subbasin boundary benefits local stakeholders in Kern County subbasin and adjacent subbasins. In the future, data may be shared with neighboring GSAs for coordination. 10 Improvements to Regional Subsidence Monitoring Kern County Subbasin Monitoring and Design Guidelines According to the BMP (DWR, 2016), Leveling surveys and CGPS surveys must follow, at a minimum, guidelines in the CalfransSurvgManual: https://dot.ca.gov/programs/right-of-way/surveys-manual-and- interim-guidelines. Extensometer resources from USGS are also listed in the BMP (DWR, 2016). In addition to CalTrans guidance, UNAVCO has provided many CGPS design specifications on their website. UNAVCO offers a robust CGPS monument design (deep drill based monument [DDBM] that minimizes interference in data recording from soil expansion and temperature effects. Attachments 1 and 2 include example specifications for CGPS stations from CalTrans and UNAVCO, respectively. Attachment 3 includes sample extensometer designs for reference. Rough Costs to Consider For subbasin-wide monitoring to be implemented with the recommended AOIs in this memorandum, Kern Subbasin stakeholders will coordinate how the work will be implemented. Below is a brief summary of rough costs expected for the installation of each monitoring solution. Costs do not include ongoing management and maintenance of the stations. Actual costing will be confirmed during procurement and the planning process. Level Surveying and Benchmarks (not proposed in this memo, but is an alternative approach). • Install benchmarks where none available along linear features every 1/8 to 1/4 mile in area of interest. • Each —$500 to $2500 installation Initial Survey (5 to 8 monuments per day). $1500-$2500 per day (includes reporting). Subsequent Surveys (8 to 10 monuments per day). $1500-$2500 per day (includes reporting). CORS CGPS Station —$30k to $100k depending on equipment (purchase and installation). This may not include programming and digital network setup. DWR may be able to provide technical assistance, and at a minimum, review design specifications if DWR concurrence is wanted. DWR has not at this time offered any current specifications or assistance in developing designs. Optional outside consulting may be recommended for design and programming. Extensometer Drilling and installation costs —$200k to $300k (design and operation not included). Conclusions This memorandum was prepared, in coordination with subbasin stakeholders, to improve the Kern County Subbasin subsidence monitoring network. It prioritizes areas of interest, at a subbasin-level, that require additional subsidence monitoring. Figures 2 and 3 present the AOIs for future monitoring points and associated water level monitoring wells (BMWs). AOIs are listed in order of highest priority for investigation and monitoring installation. Figures 4 to 8 present aerial images of these areas. In AOIs where groundwater extractions and oil and gas activities may be contributing to subsidence, extensometers will be installed in lieu of CGPS points in order to monitor the depth interval of groundwater extractions. Where subsidence monitoring is required, monitoring water levels and the condition of infrastructure is necessary. Where groundwater extraction is not causing subsidence, the AOI can be screened by the region - wide InSAR subsidence monitoring network. 11 Improvements to Regional Subsidence Monitoring Kern County Subbasin References DWR. 2016. Monitoring Networks and Identification of Data Gaps. Best Management Practices (BMP) for the Sustainable Management of Groundwater. December. DWR. 2017. California Aqueduct Subsidence Study. San Luis Field Division. San Joaquin Field Division. June. 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Attachment 1. CGPS CDOT Design Machine threaded 1-1/2" (o.d.) x 18" Stainless Steel Pipe. DETAIL "A" No scale DETAIL "A" 0.5 Ft 1.9 Ft typ. Above Ground Cabinet #334 2.5ft x 2.5ft x 6ft 4. Upper Pier, 10 Ft. Above Surface Concrete pad 4ft x 4ft 4 4 I ] U lin Electric PVC conduit 4* with 3 ft radius sweep -Lower Pier, at least 10 Ft. 4'. below surface 4 4 1.9 Ft typ. 0.5 Ft 7ft - 9ft Machine threaded -1/2" (o.d.) x 18" Stainless Steel Pipe. Monument CVSRN TAFT MS Station Name CENTRAL VALLEY SPATIAL Design By: GC Revision: Feb 20, 2007 Crossing bolts REFERENCE NETWORK Drawn By: PNP Scale: None (3/8" x 6" stainless streel) CVSRN File: Monument TAFT 1 855 M Street, Suite 200, Fr--, CA 92721 Date:Feb 20, 2007 1 Sheet 1 of 1 Attachment 2. CGPS UNAVCO Design and Resources 10/15/2019 Deep Drilled Braced Monument Overview Deep Drilled Braced Monument Overview Article ID: 300 1 Rating: Unrated I Last Updated: Wed, Oct 26, 2011 at 6:49 PM Stability Cost Install :................... Labor Substrate Site :.......... ............... Time ................ .................. Impact BR, U $7,500- high high 15,000t� 2-4 d 3-4 The deep drilled braced monument (UNAVCO DDBM*) provides for a high degree of stability and longevity and can be anchored in bedrock or unconsolidated material. It is in the form of a tripod, each leg extending into the ground up to about 40 feet and welded at the top with gusset reinforcements. If site access is an issue and bedrock is available, the short drilled braced monument is the next best alternative to this type. The UNAVCO DDBM is used throughout the PBO network. It is based on the SCIGN design used at older installations in the SCIGN, BARGEN, PBO and PANGA networks. * Modified from the original SCIGN DDBM design of Duncan Agnew and Frank Wyatt. Site ASHM of the BARGEN network, Nevada, Utah, and California. Pros https:Hkb.unavco.org/kb/article.php?id=300 1/3 10/15/2019 • high stability • longevity Cons Deep Drilled Braced Monument Overview • can be installed in either bedrock or unconsolidated materials • labor and tool intensive (requires a drilling rig and crew) • expensive (can be $7,500 to $15,000, depending on drilling) • time intensive (requires 2-4 days) • may not be able to install in some remote locations... depends upon ease of site access • large construction disturbance footprint Design and Construction A drilling contractor is required to install this monument. The cost of installation can typically range between $6,000 and $10,000 depending upon factors such as the type of drilling rig used, distance the drill rig and crew need to travel to site (mobilization/de-mobilization), foundation material (ground) being drilled, etc. • ,ri,lller �.....ln strLuctiorl......(:.p f). Documents • Deep Drilled Braced Monument Technical Drawings in .pdf format: ° IlFull .................. ° Above Surface ...................................................................... ° Top ° Construction ........................................................... ° Sii, ....LUggi ° Sub-surface ......................................................... • Deep Drilled Braced Monument Alignment Tool Diagrams in .pdf format: 0.1Q.:.pdf pdf 0.2Q.:.pdf pdf Installation Photos • Construction Photos ................................................................................................ Approximate Cost $7,500-15,000 depending principally on drilling (substrate, distance drill rig needs to travel to and from the site) This cost is for the monumentation only; the antenna mount (e.g. SCIGN mount) is not included. Materials • 21 -foot 1.25" diameter schedule 40 stainless steel pipe, threaded (5 per site) https:Hkb.unavco.org/kb/article.php?id=300 2/3 10/15/2019 Deep Drilled Braced Monument Overview • 10 -foot 1.25" diameter schedule 40 stainless steel pipe, threaded (5 per site) • 1.25" schedule 40 stainless steel threaded adapters (5 per site) Tools • 3 weld gussets • threaded adapter (if using the SCIGN antenna mount; see below) • 2.5" diameter schedule 40 PVC (for each leg and for center post) • foam wrapper (for each leg and for center post) • rebar (for each leg and for center post) • duct tape (for foam) • concrete (provided by drillers) • water (provided by drillers) • welding rod • gas for the generator (if there is no AC hookup) • string, paint, nails, and wood stakes (for marking legs) • generator (if there is no AC hookup) • compass • reel measuring tape (30m/100ft) • leg alignment tool • mallet • large vice grips (2 or more) • grinder • vertical and angle level(s) • welder • file, pick, brush, gloves, helmet, long-sleeved shirt, hat (for welding) Mount Commonly Used N , *1, The S"Q""G,N!,m"oun"tis the antenna mount most commonly used with the deep drilled braced monument, although it is only required when using the SCIGN radome. Otherwise, any other leveling mount, such as the SECO 2072 -series antenna mount, is acceptable. https:Hkb.unavco.org/kb/article.php?id=300 3/3 Template Version 3.1: 1/21/2005 rso GPS Deep Drilled Braced Monument Installation Driller Instructions Overview The deep drilled braced GPS monument (DDBM) is designed to create a highly rigid and immobile structure isolated from surface soil movement and cemented in place at depth. The monument consists of 5 legs (stainless steel pipes) placed into drilled holes, and welded together above the surface to create a "tripod" frame. Of the 5 legs, the center leg is vertical and the 4 other legs are installed at angles to brace the vertical leg. The Plate Boundary Observatory (PBO) project will require the installation of at least 600 of these DDBM monuments throughout the Western US and Alaska. We hope to locate a small number of highly skilled contractors throughout the Western US and Alaska to install these monuments during the next five years. This scope of work is for a one-time installation project consisting of a small number (1-5) of these installations. This will allow us to evaluate the contractor for possible future work within PBO. Please provide a quote for services based upon the scope of work outlined below. Material Contractor to supply to the following material: 1) A sufficient amount of grout to fill 5-35 foot deep holes (4.5"-6" diameter) will be used. Contractor will assure the following: a) Type I, II Portland cement and Class F Flyash shall be used for grout materials. b) Flyash shall replace 10-15% of the volume of Portland cement. c) Grout shall be proportioned to have a water to cementitious material ratio of 0.50. d) If using pre-packaged grout, grout shall be 1118 Grout supplied by Surecrete, Seattle, WA, or an approved equal meeting these specifications. Grout 1119 should be used for applications when water is present in the hole. 2) Water sufficient to mix grout. Final mix should be consistency of a milk shake. All other material will be supplied by UNAVCO. Construction Procedure Drilling/Casing/Pipe Placement 1) Drill rig type and size selection shall be determined by contractor such that equipment used is most suited to site geology and hole precision requirements. 2) UNAVCO shall provide to the contractor a summary of expected site conditions such as surface topography and subsurface material. UNAVCO PBo GPS Deep Drilled Braced Monument v3.1 Driller Instructions Template 3) Contractor shall drill 5 holes of 4.5" diameter to minimum depths of 35 ft. a) Center hole shall be drilled at vertical orientation plus/minus 2 degrees. b) Four angled holes shall be drilled at 35 degrees from vertical plus/minus 2.5 degrees. 4) Holes drilled at precise locations specified by UNAVCO engineering staff. Frequent measurement of hole inclination during drilling shall be made to ensure holes are drilled to exact specifications. The centerlines of all 5 holes shall intersect at a single point plus/minus 3". This point of intersection shall be located 62" above the surface, at the center leg. On level ground, each of the 4 angled legs will enter the ground at 43.5" from the center leg. 5) All holes shall be drilled straight enough so that PVC casing can be installed in the top 15.5 ft of each hole, and that the steel pipe can be freely lowered, not forced, for its entire 35 ft length. 6) Hole depth is to be determined by actual measurement after drilling. If necessary, loose material may need to be removed from the bottom of the holes to achieve required depth. 7) 2.5" PVC casing (wrapped with insulation) shall be installed in upper 15.5 ft of each hole immediately after drilling. It may be necessary to use drill rig to push casing into hole. 8) Contractor shall assist UNAVCO staff in placement of steel piping immediately after drilling and casing installation. 1.25" schedule 40 steel pipe shall be installed inside casing in each hole to a depth of 32-38 ft. 9) A single 5 foot vertical hole shall be drilled for the equipment enclosure. 10) UNAVCO is responsible for siting and alignment. 11) Contractor shall assist in the clearing of cuttings from the hole, during the drilling operation. Grout Installation 1) Contractor shall provide grouting material and water for mixing. 2) All five legs are to be cemented in place with expansive grout. 3) Contractor shall prepare the pumpable grout to a "milkshake" consistency. Jobsite conditions may affect actual quantities of water needed. 4) Following steel pipe installation, contractor shall pump grout down steel pipes until grout fills pipe and pipe -casing annulus, and is seen emerging from top of annulus. Due to small clearances within pipe and at pipe -casing annulus, high pressures may be encountered during grout placement. PN UNAVCO PBo GPS Deep Drilled Braced Monument v3.1 Driller Instructions Template 5) Contractor shall place grout such that no air bubbles are introduced. Ensuring a continuous flow of grout through pipe and back up through annulus requires proper grout handling, mixing, and pumping equipment and procedures. 6) Contractor shall neatly finish grout at surface of casing such that water will not puddle around monument legs. Site Documentation and Cleanup Contractor shall assist UNAVCO personnel in compiling site documentation including: 1) Depths of holes. All drilling documentation including drilled, measured, tamped, and shimmed pipe depths shall be recorded by contractor. 2) Grout information. Time of day, grout sack ID#, grout amount sifted, mixed, pumped, and lost shall all be monitored by contractor and reported to UNAVCO engineer for recording. 3) Contractor shall be responsible for removal of hazardous materials (i.e. hydraulic fluid, diesel fuel and/or contaminated soil) and debris. Site shall be left in suitable condition. 4) Contractor shall be responsible for containing and disposing of excess grouting material and debris such as cement bags, trash, and cigarette butts. 5) Contractor shall be responsible for leveling and raking of areas that were disturbed by drill rig and support vehicles at the site. Miscellaneous 1) Contractor is responsible for hotel and per diem for the drilling crew. 2) Contractor shall assist UNAVCO personnel in any tasks related to GPS site installation such as pipe/coupling preparation, installation of pipe and insulation piping. 3) UNAVCO will mark for Underground Services Alert. 4) UNAVCO will provide maps, directions and relevant access information for drilling access. 5) Contractor's equipment and tools are the sole responsibility of the contractor. UNAVCO will not reimburse the contractor for any lost or damaged equipment. 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O 0 > co a) a) m -0 (am 0 N cD -aro 2 E a' W (D 0 CR w U= p2pcoLpp 10/11/2019 UNAVCO Resources: GNSS Antennas UNAVES ReBsarL-cn: 81433 Antsnna3 Dual frequency (L1/L2) Choke Ring Antennas provide geodetic -quality GNSS measurements for surveying, map Typical dual -frequency choke ring antennas maintain a stable phase center that has less than 1 mm of drift. T on the geodetic research standard and features aluminum choke rings and a Dorne Margolin antenna elemen have a low power consumption, and have excellent multipath rejection characteristics. Less-expensive but als( available as well. The UNAVCO Facility currently supports the following GLASS antennas. • Note: Trimble GNSS Choke Ring TRM59800.80 is a TRM29659.00 reworked with a wide -band low noise amplifier (LNA) for GNSS. The TRM59800.00 and TRM59800.80 elements are identical in construction, the two antenna types are assumed to show similar phase center corrections. The TRM59800.80 calibrations are copies of the TRM59800.00 calibrations. Ashtech Choke Ring • NGS antenna calibration (ASH701945G_M SCIT) (http://www.ngs.noaa.gov/ANTCAL/LoadFile?file=ASH701945G_M_SCIT.atx) • NGS antenna calibration (ASH701945E_M SCIT) (http://www.ngs.noaa.gov/ANTCAL/Load File?file=ASH701945E_M_SCIT.atx) • NGS antenna calibration (ASH701945C_M SCIT) (http://www.ngs.noaa.gov/ANTCAL/Load File?file=ASH701945C_M_SCIT.atx) • NGS antenna calibration (ASH701945B_M SCIT) (http://www.ngs.noaa.gov/ANTCAL/Load File?file=ASH701945B_M_SCIT.atx) • NGS antenna calibration (ASH700936D_M NONE) (http://www.ngs.noaa.goWANTCAL/Load File?file=ASH700936D_M_NON E.atx) • Preliminary Report on Data Quality with a Trimble 5700 GPS Receiver and an Ashtech Choke Ring Antenna (2002) (http://kb.unavco.org/kb/article.php?id=237) https:Hkb.unavco.org/kb/article/unavco-resources-gnss-antennas-458.html 5/9 10/11/2019 UNAVCO Resources: GNSS Antennas Trimble Zephyr • NGS antenna calibration (TRM41249.00 NONE) Geodetic (http://www.ngs.noaa.gov/ANTCAL/LoadFile?file=TRM41249.00_NONE.atx) • NGS antenna calibration (TRM57971.00_NONE) (http://www.ngs.noaa.gov/ANTCAL/Load File?file=TRM 57971.00_NON E.atx) • Trimble Zephyr Geodetic - Dimensions (from Trimble) (http://kb.unavco.org/kb/article.php?id=240) • The Design and Performance of the Zephyr Geodetic MENU Antenna (Trimble publication)(http://kb.unavco.org/kb/article.php? id=241) Trimble V It "" Zephyr NGS antenna calibration (TRM39105.00) (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? Mode l=TRM&Antenna=TRM 39105.00) Topcon PG -A1 • NGS antenna calibration (TPSPG_A1+GP) (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? Mode l=TPS&Antenna=TPSPG_A1,G P) • Topcon PG -A1 Antenna Dimensions (.pdf) (http://kb.unavco.org/kb/assets/102/TPSPG_A1 GP.pdf) no photo AOA available TurboRogue • NGS antenna calibration (AOAD/M_T) SNR -800 (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? M odel=AOA&Anten na=AOAD/M_T) no photo Trimble L1/L2 available microcentered • NGS antenna calibration (TRM33429.20+GP) geodetic with (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? groundplane Mode l=TRM&Antenna=T RM 33429.20,GP) no photo Trimble available Permanent . NGS antenna calibration (TRM23903.00) L1 /L2 (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? Mode l=TRM&Antenna=TRM 23903.00) no photo Trimble available Geodetic • NGS antenna calibration (w/ ground plane) Compact L1/L2 (TRM22020.00+GP) (http://www.ngs.noaa.gov/cgi- bin/query_cal_antennas.prl?Model=TRM&Antenna=TRM22020.00,G P) • NGS antenna calibration (w/o ground plane) (TRM22020.00- GP) (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? Model=TRM&Antenna=TRM22020.00-GP) https:Hkb.unavco.org/kb/article/unavco-resources-gnss-antennas-458.html 6/9 10/11/2019 UNAVCO Resources: GNSS Antennas no photo Trimble . NGS antenna calibration (TRM14532.00) available 4000SST L1/L2 Geodetic (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? Model=TRM&Antenna=TRM 14532.00) no photo Trimble available 4000SSE • NGS antenna calibration (TRM14532.10) Kinematic (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? L1 /L2 Model=TRM&Antenna=TRM 14532.10) UNAVCO/Micro Pulse L1 • NGS antenna calibration (MPL1370W) (http://www.ngs.noaa.gov/cgi-bin/query_cal_antennas.prl? Model= MPL&Antenna=MPL1370W) • UNAVCO/Micro Pulse L1 - How to make UNAVCO's L1 antenna (http://kb.unavco.org/kb/article.php?id=635) MENU Setting up Or3fON33 Ant€nna3 • Introduction to GNSS Antenna Set-up Methods for Campaigns (http://kb.unavco.org/kb/article.php?id=71) An introduction for inexperienced surveyors including antenna height measurement methods and g • How to use declination to align the GNSS antenna to true north (http://kb.unavco.org/kb/article.php?id=61) Antennas are typically aligned to true north to keep measurements both within and between campi that the location of the antenna phase center is modeled correctly. • Geographic Magnetic Calculator (http://www.resurgentsoftware.com/GeoMag.html) Link to software you can download and use to calculate the declination in your study area. Development and Te3ting of Far3ki 33 Ant€nna3 • Choke Ring Antenna Calibrations (http://kb.unavco.org/kb/article.php?id=311) • Equipment Power Usage Testing (http://kb.unavco.org/kb/article.php?id=235) • Antenna Phase Center Plots (.pdf) (http://kb.unavco.org/kb/assets/242/phaseplots.pdf) (L1 and L2 phase center p Trimble Zephyr Geodetic, Trimble Zephyr, and Leica Choke Ring antennas) • Iridium & GPS Antenna Interference Test (2008) (http://kb.unavco.org/kb/article.php?id=110) • Assessing the Impact of the SCIGN Radome on Geodetic Parameter Estimates (2007) (http://kb.unavco.or • Development of an antenna and multipath calibration system for Global Positioning System sites (2 (http://kb.unavco.org/kb/article.php?id=254) • UNAVCO 2004 GPS Campaign System Testing in Support of the Plate Boundary Observatory (PBO) (: (http://kb.unavco.org/kb/article.php?id=5) • UNAVCO 2003 GPS Receiver and Antenna Testing in Support of the Plate Boundary Observatory (PB (http://kb.unavco.org/kb/article.php?id=15) • Multipath characteristics of GPS signals as determined from the Antenna and Multipath Calibration (http://kb.unavco.org/kb/article.php?id=253) • Preliminary report on data quality with a Trimble 5700 GPS receiver and an Ashtech Choke Ring Ant (http://kb.unavco.org/kb/article.php?id=237) https:Hkb.unavco.org/kb/article/unavco-resources-gnss-antennas-458.html 7/9 _') F) N 0 U M m O O a cin o E cn co O ( 0 cv� O cn O L D L a)0 C L — U a 0 U a E c C O O U C O U O O U C C aU o �— co Cl)Q O 3 m C y U 6 O U) cn m p C E (n _,k a> C ,? 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O ca ca L a W W C a cn C L L a) a ca U X p >, ca � p ca ca c a> W o ca p C ca 3 I— I— U ca U co coo co ca - -C ca C.0 -C W 00 co E U til — O N ` L O 0 tC7 ccooa�V ps cis co EL U W ,,,, m�' Ir „l M N Y !z Q R °/ CL E_ %<� \0E \ � c \ ( £ % 2 o 0 ®\$5 %� 0) cncn ¥2c=\ -020 E/ \§±- $ =fo §\ t o 2 0 \ / o o 'S 0 = a) 220m o 0 c cn /k\ f / b ® o cn \\_\� \ f / 0 0 eem\o m R % _ \ c f \ Co S� f o E c 0cn0-0 o= mot o 0 f _0 £ § /\¥\&[ 0 4- C mo/ 0) -0 5 020 =gGE= 7200) / 0 m - f % \\�\/ <�oo=0- /\ ) @ `® Co E m/ » _ § \ /............... / 10/11/2019 Cellular Modem Summary Cellular Modem Summary Article ID: 357 1 Rating: Unrated I Last Updated: Wed, Oct 28, 2009 at 3:12 PM Cellular Modem Summary Cellular modems need to be very robust as the inherent disadvantages of the analog cellular phone system become especially evident with high speed data transfers. Cellular coverage could be of a quality not compatible with high speed data transfers and handshaking protocols. Often more than one cellular provider offers coverage in an area and it is worthwhile to investigate several options. A good voice communication does not translate into an acceptable data communication. Your choice of cellular modem and cellular phone should be able to run off 12VDC, even if AC power is available, to facilitate DC (battery) backup. Suggested Minimum Requirements • 12 VDC power • V.32, V.32bis communication protocols • V.42, MNP error correction/data compression • RTS/CTS hardware flow control • High speed baud rates (2.4-19.2 kbps) • Compatible with CCITT and Bell standards • Support industry -standard AT command set • Compatible with RS -232 Control Signals Information on radio modems used by UNAVCO Proxicast LANCeII Gateway Used throughout the Plate Boundary Observatory (PBO) network, Western U.S. • UN. V ,C7....as;,urs;,!rm,?.arY....ol....E.Lozi.ca �l....mll. u,l3.r....rmo.dn ms....an..d...n..el Q.L. irgg ZyXEL U -1496P https:Hkb.unavco.org/kb/article/cellular-modem-summary-357.html 1/2 10/11/2019 Cellular Modem Summary •ZYZEI U..-..1 4..9..6..P P..o r..t..a b..I..e C..e.l..I..u..I..a r I.M..o..d..e..m S..u..m.m.gfy �ag .. .. .... .... .... ..... .... .... . . ... ... . .... ...... .... . . ... . ... . ..... .... .... .... ...... ..... .... ...... .... Raven 11 CDPD • 11 ow to use the Raven ll CDPD modem with the Lantronix IMSS100 serial -to -ethernet device ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... https:Hkb.unavco.org/kb/article/cellular-modem-summary-357.html 2/2 Attachment 3. Extensometer Design O C7 z U U � w z w O L ww wJ w� O z w w w w O Q w d J Z w ~ � U o o z o c> W Q o a o 2 0 2 w Vl J z V) z F w U U w C] W z H � (Y X. W U 0 C7 a z CD K o o z o c> o o a o 2 w ci z C7 a LY' O CJ 7,1 w l �f ? V w z w fi w O ~ � V) Ld w U) >- C) V) 0 f,f -E Z: u z < U) 00 CD <: V) C,) Ll m o V) , z V Ll n) m M W 6 .2 E W 23� ELI x: > n rT CL 'T 0 Ll W co "I, Io C) LL LL a0 "o C, 0 Q, ul C� IrI, Q) 10 WWOM� WI va w iM w M 0 u z V) z -L ww 00 CD <: 0 C-) X < z m M W 6 .2 E W 23� ELI x: > n rT CL 'T 0 Ll W co "I, Io C) LL LL a0 "o C, 0 Q, ul C� IrI, Q) 10 WWOM� WI va w iM w M At this time, the Kern subbasin is working on the development of a basin -wide coordinated Data Management System. Please see the following documents related to that development of an application to DWR Prop 68 Grant requesting funds for the development. For the current year of annual reporting, see the following document related to a coordinated basin -wide cost share agreement. 11/15/2019 Organization Name' Print Preview Proposal oj-.),�,l.�I1',.Full.. ie. Applicant Information Kern River GSA _ Point Of Contact First Name: j Kristin Last Name: Pittack JjEmail: [kpittack@bakersfieldcity.us DD(+/-): 119 MM: 19 SS: 37 Division Name: City of Bakersfield Phone:' (661) 3263646 Ext: Longitude/Latitude Lon atude/Lat�tude Clarification ArlryNress ; jLine 1: 1600 Truxtun Avenue Address Line 2: CitBakersfield .State: California The County Su...... located in the cent r of the southern end of the San Joaquin Valley. fSilas' 93301 1 Point Of Contact Position Title ` YY 1 Water Resources Planner ,..,.,., Proposal Name' r. Kern County Subbasin Groundwater Sustainability Plan Support - Phase II �The 5-022.14 San Joaquin Valley -Kern County � Kern County Subbasin is a critically overdrafted groundwater basin of high priority, located in the Southern San I `Hydrologic Region Joaquin Valley. The Proposal covers the entire Kern County Subbasin and is submitted by the Applicant, the Kern River Groundwater Sustainability Agency (KRGSA), on behalf of all the GSAs and participating entities in the 115 7657 South Wiley Floor; 116 7558 South M llcy I` oor Subbasin. The overarching goal of the proposed Subbasin Data Management System (DMS) Development project is to initiate Assembly District the key steps to develop and build a Subbasin DMS, This DMS will ultimately support SGMA compliance by � Senate District"J Subbasin GSAs by providing (1) improved coordination of groundwater monitoring and management actions and (2) US Congressional District" the ability to meet the reporting and implementation requirements of SGMA for the Kern County Subbasin. Proposal Objective To meet this goal, the project objectives are to retain a contractor to develop, manage, and coordinate use of the DMS with the GSAs and participating agencies; identify the data types that would be required to monitor GSP implementation and Subbasin progress toward sustainability; and investigate, select, and procure a commercially `available or custom-designed DMS with an appropriate configuration that combines technical rigor, flexibility, ease of use, and expansion capabilities to store data in text, spreadsheet, graphical, and map -based formats. Some aspects of the DMS project, such as development of a User's Manual and DMS review and assessment, will be Funded by the grant but may also be subject to GSA funding if needed. These tasks are included in the project Work (Plan to provide context for the work to be completed under this Round 3 Planning funding request. Budget Information Other Contribution $0.00 Local Contribution $0.00 Federal Contribution $1-00 (Inland Contribution $0.00 Amount Requested* $500,000.00 Total Proposal Cost " "I'$500"o"00".00 Geographic Information 1Latitude IDD(+/-): �35 MM: J25 ISS: X39 1Longitude DD(+/-): 119 MM: 19 SS: 37 Longitude/Latitude Lon atude/Lat�tude Clarification _ Locationpp County Subbasin. tis Location The County Su...... located in the cent r of the southern end of the San Joaquin Valley. County Kern Ground Water Basin 5-022.14 San Joaquin Valley -Kern County � `Hydrologic Region "fuharc Udw j Watershed 115 7657 South Wiley Floor; 116 7558 South M llcy I` oor Legislative Information Assembly District 32nd Assembly District, 34th Assembly District � Senate District"J 16th Senate District, 18th Senate District „ US Congressional District" 1 District 21 (CA), District 23 (CA) F _ yI9jel t. Information, Project Name: Subbasin Data Management System Development Project i Implementing Organization Kern River GSA Secondary Implementing Organization All of the Kern County Subbasin GSAs Proposed "Start Date 2/1/2020 https://grants.water.ca.gov/(S(5i4keltbrerlk4eliziiostf))/Agency/ProposalFullView.aspx 1/6 11/15/2019 Proposed End Date Scope Of Work Project Description Print Preview Proposal 7/31/2022 The scope of the project includes Grant Administration, Stakeholder Engagement / Outreach, GSP Development: Subbasin DMS Scoping and Development, and Review and Assessment. Deliverables include: executed contract with database development consultant; list of data types to be collected; report and recommendation on available formats for required information; and possibly recommendation and GSA Boards' decision to select a DMS package. The Kern County Subbasin is the largest Subbasin in California, with a complex water management structure, a large portfolio of local and imported water sources, and numerous large groundwater banking projects, collectively providing local and State-wide benefits for water supply. Given this framework, numerous structures for data management have been developed by local agencies for their own objectives, resulting in disparate data sets and isolated pieces of information. The Kern County Subbasin GSAs recognize the need to develop a centralized, Subbasin-wide DMS. Accordingly, the GSAs are cooperating on this proposal to support monitoring, evaluation, reporting, management, and, importantly, GSP implementation. The Subbasin GSAs have previously coordinated and collaborated on the basin -wide water modeling for GSP development and thus believe that this is the next step forward. The immediate need for a centralized DMS is highlighted by the GSAs' ongoing cooperative efforts for annual reporting. In order to comply with the requirements of SGMA for standardized reporting, and to coordinate on a Subbasin-wide basis for consistent data evaluation, it is crucial that a DMS be developed for the entire Subbasin that will allow the various GSAs to gather and share information regarding local groundwater conditions. The proposed DMS planning and scoping project will ultimately support Subbasin GSAs by providing (1) improved coordination of groundwater monitoring and management actions and (2) the ability to meet the reporting and implementation requirements of SGMA for the Kern County Subbasin. The project objectives are to retain a contractor to develop, manage, and coordinate use of a Subbasin-wide DMS; Project Objective identify the data types required to monitor the Subbasin's progress toward sustainability; and investigate, select, and procure a DMS with an appropriate configuration that combines technical rigor, flexibility, ease of use, and expansion capabilities to store data in text, spreadsheet, graphical, and map -based formats. No records found. Project Benefits Information Budget Information Other Contribution $0.00 Local Contribution $0.00 Federal Contribution $0.00 11 Inkind Contributio11 n $0 00 Amount Requested' $500,000.00 m....� ......... ..... ........................ , 1$500,000.00 Total Project Cost" Location of the approximate center of the Kern County Subbasin. Geographic Information Latitude" �DD(+/-). �35 MM: �25 �SS: 39 Longitude' DD(+/-): 119 [MM: 119 SS: 37" Longitude/Latitude Clarification Location of the approximate center of the Kern County Subbasin. Location The Kern County Subbasin is located in the center of the souther end of the San Joaquin Valley. County " Kern Grou11 nd Water Basin I5-022.14 San Joaquin Valley -Kern County Hydrologic "Region Tulare Lake Watershed 115 7557 South Valley Floor; 116 7558 South Valley Floor jLegislative Information Assembly District 132nd Assembly District, 34th Assembly District Senate District' 16th Senate District, 18th Senate District US Congressional District District 21 (CA), District 23 (CA) Ql. Project Description: i 1 Provide a brief abstract of the proposal. This abstract must provide an overview of the proposal including the main issues and priorities addressed in the proposal. (25 words or less)" This Proposal develops a data management system (DMS) that covers the Kern County Subbasin and allows Subbasin GSAs to improve GSP coordination, and implementation. Q2Previous Funding_ https://grants.water.ca.gov/(S(5i4keltbrerlk4eliziiosf))/Agency/ProposalFul]View.aspx 2/6 11/15/2019 Print Preview Proposal Has the applicant received prior funding through the Proposition 1 SGWP Round 2 grant?` a) 0 Yes b) No If so, how much funds did the applicant receive? $1,500,000 Provide the name and details of the person responsible for signing and executing the grant agreement for the applicant. Persons that are subcontractors to be paid by the grant cannot be listed as the Project Representative. Other entities included in the GSA can be listed here." Rodney Palla Chair, Kern River Groundwater Sustainability Agency 1600 Truxtun Avenue Bakersfield, California, 93301 (661)326-3767 Q4. Project Manager: Provide the name, title, and contact information of the Project Manager from the applicant agency or organization that will be the day-to-day contact on this application.'" Kristin Pittack Water Resources Planner, City of Bakersfield 1600 Truxtun Avenue Bakersfield, CA 93301 (661) 326-3646 Q5. Eligi ility_ Has the applicant met the requirements of DWR's CASGEM Program?, a) Yes b) No Is the applicant an agricultural water supplier? a) Yes b) 0 No If yes, has the applicant submitted a complete Agricultural Water Management Plan (AWMP) to DWR? a) Yes b) No If yes, has the AWMP been verified as complete by DWR? f a) Yes b) No If the AWMP has not been submitted, explain and provide the anticipated submittal date. Q7.1. Eligibility_ Is the applicant an urban water supplier? I la) Yes b) ' No https:llgrants.water.ca.gov/(S(5i4keltbrerlk4eliziiostf))/Agency/ProposalFu[IView.aspx 3/6 11/15/2019 Q7.1.a Eligibility_ If yes, has the applicant submitted a a) Yes b) No Print Preview Proposal nplete Urban Water Management Plan (UWMP) to DWR? If yes, has the UWMP been verified as complete by DWR? a) Yes b) No Q21'c EJ gll.kiy If the UWMP has not been submitted, explain and provide the anticipated date for submittal. Is the applicant a surface water diverter?"' a) Yes b) No If yes, has the applicant submitted to the SWRCB their surface water diversion reports in compliance with requirements outlined in Part 5.1 (commencing with §5100) of Division 2 of the Water Code? a) Yes b) No If the reports have not been submitted, explain and provide the anticipated date for meeting the requirements. Q9. Eligibility_ Does the proposal include any of the following activities: 1.) The potential to adversely impact a wild and scenic river or any river afforded protection under the California or Federal Wild and Scenic Rivers Act 2.) Acquisition of land through eminent domain 3.) Design, construction, operation, mitigation, or maintenance of Delta conveyance facilities 4.) Acquisition of water except for projects that will provide fisheries or ecosystem benefits or improvements that are greater than required currently applicable environmental mitigation measures or compliance obligations 5.) Pay any share of the costs of remediation recovered from parties responsible for the contamination of a groundwater storage aquifer 6.) Projects or groundwater planning activities associated with adjudicated groundwater basins. If yes, the project is not eligible for grant funding.'"' a) Yes (not eligible for grant funding) b) No To satisfy SB 985 requirements, stormwater and dry weather capture project must be listed in a SWRP that is consistent with the relevant code provisions enacted by SB 985 (Water Code §10562 (b)(7)) as determined by the SWRCB. a) This Project is Consistent Are you applying for cost share waiver or reduction as a DA? Fill out Attachment 6 — DAC, SDAC, and/or EDA, as appropriate." a) Yes; See Attachment 6 ib) No https://grants.water.ca.gov/(S(5i4keltbrerlk4eliziiostf))/Agency/ProposalFulIView.aspx 4/6 11/15/2019 Print Preview Proposal By submitting the application, the Project Director is certifying that: a) The applicant is an eligible entity; b) He/She is aware that any attachment exceeding the page limit listed in the attachment templates will not be reviewed; c) He/She is aware that, once the proposal is submitted in GRanTS, any privacy rights and other confidentiality protections offered by law with respect to the application package and project location are waived; and d) He/She has read and agrees to all of the Terms and Conditions of the grant agreement."' a) " Yes (Certified) b) No Section: Climate Risk in Investments Climate Risk in Investment �Q'Il.3,,:,,,,D,o,e,s,t,h,elo,rganization have a strategic business plan? a) Yes b) No If Yes, please submit a copy. Last Uploaded Attachments: Q13.. Prop 68 Cost Share Packet combined.pdf https:Hgrants.water.ca.gov/(S(5i4keltbrerlk4eliziiostf))/Agency/ProposalFuIIView.aspx 5/6 11/15/2019 Print Preview Proposal Attachtrumnt 2 h;lig'illjMy Apl)ficanj 0ocutet t '" Upload Eligibility Applicant Documentation here. The attachment is mandatory." Last Uploaded Attachments: Att2 SGM EligDoc_lofl.pdf Attachment 3: Work Plan Upload Work Plan here. (Applicant MUST use supplied template) The attachment is mandatory. Last Unloaded Attachments: Att3 SGM WrkPlan lofl.ndf Attachtntent 4, Bttt')get Upload Budget here. (Applicant MUST use supplied template) The attachment is mandatory.' Last Uploaded Attachments: Att4 SGM Budget_lofl.pdf Attachment 5: Schedule Upload Schedule here. (Applicant MUST use supplied template) The attachment is mandatory.' — – — – -- Last Uploaded Attachments: AttS SGM Schedule 1 ofl.pdf tta ^hn ettt r: «°17A DAC, and/or EDA Upload SDRC, DAC, and/or EDA (as applicable) here. Last Uploaded Attachments: Att6 SGM SDAC-DAC-EDA lofl. https://grants.water.ca.gov/(S(5i4keltbredk4eliziiosto)/Agency/ProposalFullView.aspx 6/6 October 21, 2019 KERN RIVER GSA To: Kern Groundwater Authority Buena Vista WSD GSA Henry Miller WD GSA Olcese WD GSA Rodney J. Palla, Chair Bob Smith Gene Lundquist Re: Reimbursement Agreement for the Kern County Subbasin - DWR Proposition 68 Grant Application Development and Grant Administration. The Kern River Groundwater Sustainability Agency (KRGSA), the Kern Groundwater Authority (KGA), the Buena Vista WSD Groundwater Sustainability Agency (BVGSA), the Henry Miller WD Groundwater Sustainability Agency (HMGSA), and the Olcese WD Groundwater Sustainability Agency (OGSA) wish to participate in the Reimbursement Agreement for the Kern County Subbasin - DWR Proposition 68 Grant Application Development and Grant Administration (Grant). On behalf of the Subbasin, the KRGSA has approved a contract with Horizon Water and Environment (Horizon) which includes a scope of work with the following tasks: 1) Develop and Submit Grant Application ($19,950); 2) Support Database Project Lead in Developing RFP for Database Developer ($1,990); and 3) Grant Administration ($27,680). Horizon's proposal for the scope of work is provided as Attachment 1. All parties agree to cost share this effort according to following terms and conditions: The participant signatories below will pay their share of the proposed budget of $49,620 as shown on Attachment 2. The first two (2) tasks will be invoiced upon approval of this Agreement. Task three (3) will be billed as future Grant Administration work is performed. All payments shall be due 45 days after the receipt of invoice from the City of Bakersfield. If the above terms and conditions are acceptable, please sign and date all copies of this letter and return them to the KRGSA. A fully executed original will be returned to all GSA's. Sincerely, Rodney Palla Chairman Accepted: Kern Groundwater Authority Buena Vista WSD GSA By _._ By: Title: Title: Date:,..._..Date: Henry Miller WD GSA Olcese WD GSA By By: Title:. ......... _ Title:, Date: Date; Sincerely, Rodney Palla Chairman Accepted: Kern Groundwater Authority By:_ Henry Miller WD GSA By: Title: Buena Vista WSD GSA By: Title: Date:, . . . ..... . .. ............. ...... . - ---- 01cese WD GSA By: Date: Date:- Sincerely, .............. Rodney Palla Chairman Accepted: Kem Groundwater Authority By:_ ........... Title: Date: Henry Miller WD GSA Title: Buena Vista WSD GSA By. Title: Date: Olcese WD GSA By: Um Date: Date, Sincerely, Title: Date,___ Henry Miller WD GSA m Dote: In Title:_- Sincerely, '1s 1 - - • • LVIALpilgaillold Accepted: Kern Groundwater Authority By: Title: Date: Henry Miller WD GSA By: Title: Date: Buena Vista WSD GSA 0 Title: Date: Olcese WO GSA Y":, T , i , t , I : 9�ames Mickel, Pr"clafn Attachment 1 Horizon IVvNFArF H, anfi idvIR 0i.i11i 77 Kern County Subbasin — DWR Proposition 68 Grant Application Development Revised Proposal for Consultant Services Provided by Horizon Water and Environment October 10, 2019 Horizon will develop a Proposition 68 grant application/proposal for the Kern County Subbasin based on the grant requirements provided by DWR. This application will rely heavily on materials Horizon previously developed preparing the Proposition 1 grant application. Horizon will update those materials as appropriate to reflect the status of current GSPs in the Kern County Subbasin. Using these existing materials as a starting point, Horizon will develop the grant application efficiently and ensure that the information provided for the Prop 68 grant is consistent with, and builds on, the Proposition 1 grant received in 2017. This scope of work assumes that one project will be included in the grant application: ■ Project 1: Subbasin data management system development Horizon will work with the appropriate GSAs to receive good baseline information or a project description for the project. Horizon will then use our grant application expertise to articulate how the project aligns and supports the primary objectives of the Proposition 68 Grant and why the Kern County Subbasin is an excellent fit for this grant. Following award of grant funding, Horizon will administer the grant reporting and invoicing process. Horizon's work will be organized into the following tasks: Task 1: Develop and Submit Grant Application Develop Draft Application Materials ■ Horizon will use the grant application requirements to frame and structure the grant submittal documents. ■ Horizon will review DWR-provided templates to collect and organize project information for the grant application forms and Attachments (e.g., Work Plan, Schedule, Budget) and distribute them to the appropriate project leads. ■ Horizon will coordinate data requests with the GSA staff members who will be serving as the project leads for the target project. Horizon will edit/adjust the project information as necessary to support the grant application. ■ Horizon will generate draft grant application materials, including necessary text to populate the online GRanTS application tabs and required Attachments. ■ Horizon will distribute the draft grant application materials to the KRGSA and other project lead GSAs for their review, with a due date to receive requested edits and/or comments. Kern County Subbasin 1 October 10, 2019 KRGSA and KGA DWR Prop. 68 Grant Application Development Scope of Work and Cost Estimate Horizon Water and Environment Finalize Grant Application Materials ■ Horizon will finalize the grant application materials based upon GSA review and feedback described above. Horizon will send final grant application materials to KRGSA and other project lead GSAs for final review and approval prior to DWR submittal. Submit Grant Application to DWR ■ Horizon will complete the online GRanTS application information tabs, and upload all Attachments, before DWR's application period deadline of 1 p.m. on November 1. Task 2: Support Database Project Lead in Developing RFP for Database Developer ■ Horizon will coordinate with Basin Database project lead (KGA, KRGSA, or a committee) to confirm the general database objectives and needs. ■ Horizon will develop a draft RFP for review by project lead. ■ Horizon will revise and develop final RFP for review and use by project lead. This task assumes that the project lead, rather than Horizon, will administer the proposal process, including distribution of RFP, review and evaluation of proposals, and contracting of selected firm. Task 3: Grant Administration (pending award) Grant Initiation, Agreements, and Templates ■ Following notification of grant award, Horizon will coordinate with DWR, KRGSA, and KGA to finalize grant materials. Grant Implementation, Reporting, and Invoicing ■ Horizon will develop and distribute templates for quarterly reports, invoices, and backup documentation. ■ Horizon will identify deadlines for submittal of information from KRGSA and KGA and will review and clarify the submitted information each quarter to ensure that it meets grant requirements. ■ Following review and revision, Horizon will submit reports and invoices to DWR. ■ Horizon will coordinate with DWR regarding any needed revisions to submitted materials. ■ Throughout the grant period, Horizon will communicate regularly with KRGSA and KGA to maintain the flow of information. Grant Completion and Closeout ■ Horizon will coordinate and review the project's draft Project Completion Report. ■ Horizon will assist KRGSA and KGA in developing the Grant Completion Report. ■ Horizon will coordinate and upload all completion reports to DWR. ■ Horizon will develop a post -performance report template. ■ Horizon will coordinate with project leads and DWR in grant closeout. Kern County Subbasin 2 October 10, 2019 KRGSA and KGA DWR Prop. 68 Grant Application Development Scope of Work and Cost Estimate Horizon Water and Environment Cost Estimate: Task Estimated Cost 1. Develop and Submit Grant Application $19,950 2. Support Database Project Lead in Developing RFP for Database Developer $1,990 3. Grant Administration (pending award) $27,680 Total $49,620 Schedule: Horizon will complete the grant submittal process on or before the DWR deadline of November 1, 2019, at 1:00 p.m. Tasks 2 and 3 will be completed following notification of grant award. Kern County Subbasin 3 October 10, 2019 KRGSA and KGA Attachment 2 Funding Contribution and Participation Percentages Total Horizon Contract Amount: $49,620.00 Funding Request for App/RFP: $21,940.00 Funding Entity Funding Request 1 Arvin -Edison Water Storage District $953.91 2II�IIIIIII �IIIIII ILII VIII �lllllllllllllll�11111111111111 3 Bellridge Water Distrct 4 Berrenda Mesa Water District 5 Cawelo Water District 6 7 Eastside Water Management Area 8 Henry Miller 9 10 Lost Hills Water District 11MONIMMMMEOMM 12 Kern -Tulare Water District 13 Kern Water Bank Authority 14 North Kern Water Storage District 15 i I�JUIUIJUIUIJUIUIJUIU��IU��IU��� 16 Rosedale -Rio Bravo Water District 17 Semitropic Water Storage District 18 Shafter-Wasco Irrigation District 18 Shafter-Wasco 7th Standard Annex 19 South San Joaquin Municipal Utilities District 20 Tejon-Castac Water District 21 West Kern Water District 22 Wheeler Ridge-Maricopa Water Storage District Totals $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $953.91 $21,940.00 Note: Managers/GSAs all agreed to use Horizon and to split the costs per agency. Above funding request to cover Grant App. DMS RFP. Future Grant Admin to be billed per agency as costs incured (monthly). Invoices: Kern County Subbasin Groundwater Sustainability Plan Support - Phase II 20.1 9 Grant App� ihAMIM11.4", Introduction...........................................................................................................................................................1 Applicant Authorizing Documentation..................................................................................................................1 AuthorizingResolution.........................................................................................................................................2 Kern County Subbasin Groundwater Sustainability Flan Support — Phase II Att. 1-i Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 1 —Authorizing Documentation Introduction Attachment 1 includes authorizing documentation for submittal of this Proposition 68 and Proposition 1 Sustainable Groundwater Management Grant Program, Planning Grants Proposal Solicitation Package — Round 3 grant application. The applicant has provided a resolution adopted by the applicant's governing body designating an authorized representative to submit the application and execute an agreement with the State of California for a Sustainable Groundwater Management Grant. The Kern River Groundwater Sustainability Agency (KRGSA) is pleased to serve as the applicant for Kern County Subbasin Groundwater Sustainability Plan Support — Phase II grant application. The Kern County Subbasin Groundwater Sustainability Plan Support — Phase II application includes one project led by and supporting all the GSAs in the Kern County Subbasin. The proposed project will benefit the entire Kern County Subbasin. KRGSA is a Groundwater Sustainability Agency (GSA) formed in 2016 under Section 10723.8 of the California Water Code and is comprised of public agency members including the City of Bakersfield, the Kern Delta Water District, and the Kern County Water Agency Improvement District No. 4. An excerpt from the GSA application package submitted to the California Department of Water Resources' (DWR's) Sustainable Groundwater Management Section on April 12, 2016, is included as supporting documentation with Attachment 2, Appendix A. Further information and the entire GSA application package may be found on KRGSA's website: http://www.kernrivergsa.org. The Round 3 Planning Grants Proposal Solicitation Package states that eligible applicants are GSAs, member agencies of the GSAs, or member agencies of an approved Alternate to a GSP for the basin for which the application is submitted. The KRGSA is a GSA for a portion of the Kern County Subbasin (Basin Number 5-22.14) and, as such, is an eligible applicant for this Proposition 68 and Proposition 1 Sustainable Groundwater Management Grant Program, Planning Grants Proposal Solicitation Package — Round 3 grant application. The KRGSA Executive Board adopted Resolution KRGSA 001-19 on October 21, 2019, authorizing KRGSA to submit this application to obtain a grant under the Sustainable Groundwater Management Grant Program and execute an agreement with the State of California to receive a grant under the Proposition 68 and Proposition 1 Sustainable Groundwater Management Grant Program, Planning Grants Proposal Solicitation Package — Round 3 grant opportunity. A copy of the resolution is included on the following pages. Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 1-1 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants RESOLUTION NO. KRGSA 001-19 A RESOLUTION BY THE KERN RIVER GROUNDWATER SUSTAINABILITY AGENCY (KRGSA) THAT APPLICATION BE MADE TO THE CALIFORNIA DEPARTMENT OF WATER RESOURCES TO OBTAIN A GRANT UNDER THE SUSTAINABLE GROUNDWATER PLANNING GRANT PROGRAM FOR THE KERN COUNTY SUBBASIN GROUNDWATER SUSTAINABILITY PLAN SUPPORT - PHASE II WHEREAS, the California Department of Water Resources (DWR) is administering the Sustainable Groundwater Management (SGM) Grant Program Planning Grants using funds authorized by the California Drought, Water, Parks, Climate, Coastal Protection, and Outdoor Access for All Act of 2018 (Proposition 68) and the Water Quality, Supply, and Infrastructure Improvement Act of 2014 (Proposition 1); and WHEREAS, DWR will award $50 million for projects that develop and implement groundwater plans and projects; and WHEREAS, Proposition 68 requires a minimum cost share of 25% of the total project cost, and Proposition 1 requires a minimum cost share of 50% of the total project cost; and WHEREAS, only one grant will be awarded per basin; and WHEREAS, the KRGSA represents all potential applicants in the kern subbasin, and WHEREAS, DWR requires a resolution to be adopted by the applicant's governing body designating an authorized representative to submit the application and execute and agreement with the State of California for a SGM Grant; and NOW, THEREFORE, BE IT RESOLVED, by the KRGSA as follows: The above recitals and findings are true and correct and are incorporated herein by reference. 2. That application be made to the California Department of Water Resources to obtain a grant under the 2019 Sustainable Groundwater Planning Grant Program pursuant to the Water Quality, Supply, and Infrastructure Improvement Act of 2014 (Proposition 1) (Water Code Section 79700 et seq.) and/or the California Drought, Water, Parks, Climate, Coastal Protection, and Outdoor Access for All Act of 2018 (Proposition 68) for the Kern C:\Users\Lreza\Appdata\Local\Microsoft\Windows\Inetcache\Content.Outlook\L22JZ55Z\Prop 68 Resolution.Docx -- Page 1 of 2 Pages -- County Subbasin Groundwater Sustainability Plan Support - Phase 11. 3. That the Board Chair of the KRGSA or his designee is hereby authorized and directed to prepare the necessary data, conduct investigations, file such application, and execute a grant agreement with the California Department of Water Resources and make amendments or changes thereto. I HEREBY CERTIFY that the foregoing Resolution was passed and adopted by the Kern River Groundwater Sustainability Agency on OCT 212019 1 Rod'hey S. PaIlla, Chairman C:\Users\Lrezo\Appdata\Locol\Microsoft\Windows\lnetcache\Content.Outlook\L22JZ55Z\Prop 68 Resolufion.Docx -- Page 2 of 2 Pages -- Kern County Subbasin Groundwater Sustainability Plan Support - Phase II 2 ihAMIM11.4", 20.1 9 Grant App� TT CIS EN" .- ELIGIBILITY DOCUMENTATION Introduction...................................................................................... A. Applicant Information......................................................... B. Agricultural Water Management Compliance .................... C. CASGEM Basin Prioritization and Compliance ................. CASGEM Monitoring Data — Current Submittal Status Conclusion................................................................... D. Climate Change................................................................. E. Groundwater Management Compliance ............................ F. Open and Transparent Water Data .................................... G. Public Utilities and Mutual Water Companies .................... H. Stormwater Resource Plan (SWRP) Compliance .............. 1. Surface Water Diverter Compliance .................................. K. Urban Water Management Compliance ............................. .2 .2 .3 .3 .6 .7 .7 .7 .8 .8 .8 .8 .9 Tables Table 2-1. Kern County Subbasin Monitoring Entities and Data Submittal Status..............................................6 Figures Figure 2-1. Kern County Subbasin Area with Established Monitoring Entities....................................................4 Figure 2-2. Kern County Subbasin Areas with Established Monitoring Entities and DAC Areas ........................5 Appendices Appendix A. Kern River Groundwater Sustainability Agency GSA Application Package (excerpt) Appendix B. Compliance Documentation Kern County Subbasin Groundwater Sustainability Plan Support - Phase II Att. 2-i Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Introduction Attachment 2 includes eligibility documentation for this Groundwater Sustainability Plan Support — Phase II Grant Application. Attachment 2 includes the following sections as required by the Proposal Solicitation Package (PSP): A. Applicant Information B. Agricultural Water Management Compliance C. CASGEM Basin Prioritization and Compliance D. Climate Change E. Groundwater Management Compliance F. Open and Transparent Water Data G. Public Utilities and Mutual Water Companies H. Stormwater Resource Plan (SWRP) Compliance I. Surface Water Diverter Compliance J. Sustainable Water Use and Demand Reduction K. Urban Water Management Compliance L. Water Metering Compliance The Kern River Groundwater Sustainability Agency (KRGSA) is pleased to serve as the applicant for Kern County's Kern County Subbasin Groundwater Sustainability Plan Support — Phase II grant application. The Kern County Subbasin Groundwater Sustainability Plan Support — Phase II application includes one project led by and supporting all the GSAs in the Kern County Subbasin.. The proposed project will benefit the entire Kern County Subbasin. The Kern County Subbasin has been identified as a critically overdrafted, high priority groundwater basin. The Proposal objective is to implement a high-priority project that provides direct groundwater planning benefits to the Subbasin, meets Groundwater Sustainability Plan (GSP) regulations, and meets the California Department of Water Resources' (DWR's) evaluation criteria for Sustainable Groundwater Management Grant Program, Round 3 Planning Grants funding. This project is entitled Subbasin Data Management System Development and it will develop a critical groundwater sustainability planning element encompassing all parts of the Subbasin. The proposed project includes the following primary objectives to initiate developing the Subbasin's Data Management System (DMS): (1) conduct stakeholder outreach and engagement activities, (2) procure consultant assistance for DMS development, (3) identify DMS information requirements, (4) research and select the appropriate DMS approach for the Subbasin, (5) procure or design the DMS and refine and customize the DMS as needed, and (6) develop data protocols and templates (7) train GSA staff . If additional funding is required, the GSAs in the Kern subbasin have agreed to work together to either locate additional funding or to fund. This project is critical to meet immediate Kern County Subbasin GSP planning needs, as well as essential for the next steps in basin coordination and Sustainable Groundwater Management Act (SGMA) compliance requirements. KRGSA is a Groundwater Sustainability Agency formed in 2016 under § 10723.8 of the California Water Code and is comprised of public agency members including the City of Bakersfield, the Kern Delta Water District, and the Kern County Water Agency Improvement District No. 4. An excerpt from the GSA application package submitted to DWR's Sustainable Groundwater Management Section on April 12, 2016, is included as supporting documentation in Appendix A to this Attachment 2. Further information may be found on KRGSA's website: http://www.kernrivergsa.org. Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 2-2 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants The Round 3 Planning Grants PSP states that eligible applicants are GSAs, member agencies of the GSAs, or member agencies of an approved Alternate to a GSP for the basin for which the application is submitted. KRGSA is a GSA for a significant portion of the critically overdrafted, high priority Kern County Subbasin (Basin Number 5-22.14) and as such is an eligible applicant for this Proposition 68 and Proposition 1 Sustainable Groundwater Management Grant Program, Planning Grants PSP — Round 3 grant application. The KRGSA Executive Board adopted Resolution KRGSA 001-19 on October 21, 2019, authorizing KRGSA to submit this application on behalf of the entire Kern subbasin to obtain a grant under the Sustainable Groundwater Management Grant Program and execute an agreement with the State of California to receive a grant under the Proposition 68 and Proposition 1 Sustainable Groundwater Management Grant Program, Planning Grants PSP — Round 3 grant opportunity. A copy of the resolution is included in Attachment 1. Agricultural Water Management eligibility for the applicant for this Proposal is discussed in this section The applicant, KRGSA, is not an agricultural water supplier. No agricultural water suppliers will receive funding from the proposed grant through a joint -powers agreement or other legal agreement. The project will be implemented by the applicant, KRGSA, and KGA on behalf of all the GSAs in the Subbasin. KGA is also a GSA within the basin, and KGA is not an agricultural water supplier. Neither the applicant nor the additional project proponent, KGA, is an agricultural water supplier, and as such these entities are not required to develop or submit Agricultural Water Management Plans (AWMPs). Therefore, documentation of Agricultural Water Management Compliance is not applicable for this Proposal, applicant, or project proponents. It is noted that while the applicant, KRGSA, is not an agricultural water supplier, one of the member agencies of the KRGSA is the Kern Delta Water District, which is required to develop and submit an AWMP. The Kern Delta Water District is in full agricultural water management compliance, having submitted and received DWR approval, with documentation provided in Appendix B. This section discusses California Statewide Groundwater Elevation Monitoring (CASGEM) eligibility status for the overall Proposal, project proponents, and the proposed project. The Subbasin Data Management System Development project proposed in this application package will benefit the entire Kern County Subbasin, identified as groundwater Subbasin number 5-022.14. Pursuant to Water Code § 10933(b) and Bulletin 118, DWR has designated the Kern County Subbasin as high priority and critically overdrafted. Determining CASGEM compliance status for the overall Kern County Groundwater Basin (5-022.14) requires identifying: (1) whether the entirety of the groundwater basin is monitored through identification and establishment of monitoring entities, and (2) if monitoring data is uploaded to CASGEM regularly each spring and fall, once monitoring entities are established. For the portion of high-priority basins that do not have a CASGEM monitoring entity, the grant applicant will not be eligible to receive grant funding (Water Code § 10933.7(a)). Consistent with Water Code § 10933.7(b), if the applicant area is demonstrated to be a DAC or SDAC, the project will be considered eligible for grant funding not withstanding CASGEM compliance. The Subbasin Data Management System Development project will be implemented by the applicant, KRGSA, in collaboration with KGA on behalf of and in coordination with all the GSAs in the Subbasin. The applicant, KRGSA, is not identified as a CASGEM monitoring entity for the basin. KGA is also a GSA within the Kern County Subbasin. KGA is not a CASGEM monitoring entity. Neither the applicant nor the additional project proponent, KGA, is serving as a CASGEM monitoring entity for the basin. However, approximately 46% of the Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 2-3 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Kern County groundwater basin is CASGEM compliant as described below, based on established monitoring entities that provide data to DWR's CASGEM program. This project includes a basin -wide project that will benefit the entire Subbasin, including the 54% non-CASGEM compliant area, of which 90% is characterized as Disadvantaged Community and, as such, is exempt from the requirement for CASGEM compliance. Figure 2-1, below, depicts the Kern County Subbasin, showing areas where CASGEM monitoring entities have been established (green), and areas where CASGEM monitoring entities are not yet established (gray). This map shows that 46% of the basin is CASGEM compliant in terms of having established monitoring entities that meet CASGEM requirements. Figure 2-1. Kern County Subbasin Area with Established Monitoring Entities 0 s 10 20 CASGEM Designated Monitoring Entities I Miles Kern County Subbasin Kern County Subbasin Groundwater Sustainability Flan Support — Phase II Att. 2-4 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants OMBINUMM Figure 2-2, below, depicts the Kern County Subbasin, showing CASGEM compliant areas and DAC boundaries within the Subbasin (data acquired from DWR's DAC Mapping tools). This map shows that, within the 54% of the basin that is not CASGEM compliant (in terms of not having established monitoring entities); 90% of that area is characterized as a DAC, and as such, exempt from the PSP requirement for CASGEM compliance. It is noteworthy that only 5.6% of the Subbasin is both not CASGEM compliant and not DAC. Figure 2-2. Kern County Subbasin Areas with Established Monitoring Entities and DAC Areas Mantarey County i/' �" r p(ilYMORRIS i KingsCounty/ J,�f/ir �Tul�re County/ii r y ri r,.a....w "a % �'rwu W •, /�fn/ (r t r / /l l /r t��l .. anteBarbara County ' ✓r�l'ii i'%�% � � ��� �'//.//r���'i, lir /i%rhlml�� �� /a 0 5 10 20 CASGEM Designated Monitoring Entities I I I Disadvantaged Community Miles Kern County Subbasin Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 2-5 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants CASGEM Monitoring Data — Current Submittal Status Table 2-1, below, is featured on DWR's CASGEM website, and presents a list of the established CASGEM monitoring entities for the basin. The table also shows latest elevation data submitted as of October 23, 2019. This table shows that established monitoring entities are providing current elevation data. Table 2-1. Kern County Subbasin Monitoring Entities and Data Submittal Status Source: DWR's CASGEM website. Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 2-6 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Groundwater Groundwater Last Elevation Monitoring Basin/ Basin/ Authority Type Data Associated Entity Subbasin Subbasin Submitted Well Count Name Number Arvin -Edison Ground Water 3/12/2019 Water Storage Kern County 5-022.14 Management Agency 5:01:00 PM 41 District Cawelo Water Kern County 5-022.14 Ground Water 3/11/2019 7 District Management Agency 6:48:00 PM Deer Creek & Local Agency Pursuant 2/25/2019 Tule River Kern County 5-022.14 to WC Part 2.75 12:00:00 AM 3 Authority Kern County Water Agency Kern County 5-022.14 Local Agency Pursuant 3/6/2019 5 Improvement to WC Part 2.75 3:46:00 PM District No. 4 Kern River Fan Voluntary Cooperative 4/1/2019 Group Kern County 5-022.14 Groundwater 12:00:00 AM 34 Monitoring Association Kern Water Voluntary Cooperative 7/16/2019 Bank Authority Kern County 5-022.14 Groundwater 12:00:00 AM 15 Monitoring Association Kern -Tulare Kern County 5-022.14 Local Agency Pursuant 10/8/2019 25 Water District to IRWM 12:00:00 AM North Kern Water Storage Kern County 5-022.14 Local Agency Pursuant 5/8/2019 9 District to WC Part 2.75 12:00:00 AM Semitropic Local Agency Pursuant 6/8/2019 Water Storage Kern County 5-022.14 to WC Part 2.75 12:00:00 AM 46 District Shafter-Wasco Irrigation Kern County 5-022.14 Local Agency Pursuant 2/1/2019 8 District to WC Part 2.75 12:00:00 AM West Kern Kern County 5-022.14 Ground Water 8/7/2019 49 Water District Management Agency 12:00:00 AM Source: DWR's CASGEM website. Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 2-6 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants The monitoring entities listed in Table 2-1 above are providing elevation data submitted for Kern County Subbasin and encompass approximately 46% of the Subbasin area. The other 54% of the Kern County Subbasin is not yet CASGEM compliant. Conclusion As described above, approximately 46% of the Kern County Groundwater Subbasin is CASGEM compliant from the perspective of having established monitoring entities, as well as from the perspective of providing monitoring data to DWR's CASGEM program. Figure 2-2 illustrates that, of the 54% of the basin that is not CASGEM compliant, 90%, or the great majority, is a DAC and, as such, exempt from the PSP requirement for CASGEM compliance. The remaining areas that are still not compliant and not DAC, 5.6% of the Subbasin, will not receive grant funding. CASGEM compliance is sufficiently demonstrated for the Kern County Groundwater Subbasin for purposes of this grant proposal. This section discusses Climate Change eligibility status for the overall Proposal. The SGM Grant Program 2019 Guidelines document requires that applicants seeking funding must demonstrate that the applicant's project contributes to addressing the risks in the region to water supply and water infrastructure arising from climate change (Water Code § 79742(e)). To the extent practicable, applicants must measure the amount of greenhouse gas emissions reduced and carbon sequestered resulting from an implementation project funded by the SGM Grant Program (Public Resources Code § 80001(b)(7)). This Proposal involves funding of a planning effort rather than an implementation project. As such, the Subbasin Data Management System Development project would not involve activities that could emit greenhouse gases or affect carbon sequestration. The project would have no effect related to climate change. Therefore, documentation of climate change effects is not applicable for this Proposal, applicant, or project proponents. This section discusses Groundwater Management Compliance eligibility status for the overall Proposal. The SGM Grant Program 2019 Guidelines document requires that, for groundwater implementation projects that directly affect groundwater levels or quality, the applicant must self -certify that one or more option below has been, or is currently, being satisfied. SGMA (Water Code § 10720 et seq.) specifies actions for critically overdrafted groundwater basins, high and medium priority basins, and low and very low priority basins. Groundwater project proponents must demonstrate how their project is consistent with SGMA efforts in the basin. To be eligible to receive Implementation grant funds, applicants must be from a medium or high priority basin with either: • An adopted GSP that has been submitted to DWR for review and deemed complete by DWR, or • An approved Alternative to a GSP. This Proposal involves funding of a planning effort rather than an implementation project that directly affects groundwater levels or quality. The proposed project, the Subbasin Data Management System (DMS) Development, will develop a critical groundwater sustainability tool encompassing all parts of the Subbasin. The proposed project consists of scoping and development of the DMS including activities such as: (1) conducting stakeholder outreach and engagement activities, (2) procuring consultant assistance for DMS development, (3) identifying DMS information requirements, (4) researching and selecting the appropriate DMS approach for the Subbasin, and (5) procuring and designing the DMS and customizing it as needed. This proposed project is critical to meet Kern County Subbasin GSP, basin coordination, and SGMA compliance needs. This Proposal is entitled Kern County Subbasin Groundwater Sustainability Plan Support — Phase II. The first phase of this GSP support work is currently underway and is being funded under a Proposition 1 SGMA Round Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 2-7 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants 2 Planning Grant entitled Kern County Subbasin Groundwater Sustainability Support — 2017 Grant Application. Activity under the Proposition 1 grant includes generating a GSP for KRGSA to be submitted to DWR as a deliverable. As of this writing (October 2019) the GSP is in draft form and will be submitted to DWR on or before January 31, 2020. This section discusses Open and Transparent Water Data Compliance for the overall Proposal. The SGM Grant Program 2019 Guidelines document requires that recipients of State funds through grants or contracts for research or projects relating to the improvement of water or ecological data shall, as a condition of the receipt of a grant or contract, adhere to the protocols developed pursuant to subdivision (a) for data sharing, transparency, documentation, and quality control (Water Code § 12406(b)). KRGSA will adhere to all required data sharing, transparency, and documentation protocols. This section discusses Public Utilities and Mutual Water Companies Compliance for the overall Proposal. The SGM Grant Program 2019 Guidelines document requires that a project proposed by a public utility regulated by the Public Utilities Commission or a mutual water company shall have a clear and definite public purpose and shall benefit the customers of the water system and not the investors (Water Code § 79712(b)(1)). This Proposal involves funding of a planning effort rather than an implementation project. The Subbasin Data Management System Development project it will develop a critical groundwater sustainability tool encompassing all parts of the Subbasin. The proposed project consists of scoping and development of the DMS. Once the planned DMS becomes operational, the collected data will inform understanding of existing and projected groundwater levels; consequently, this knowledge will contribute to addressing and reducing risks in the region to water supply and water infrastructure arising from climate change. This is a clear and definite public purpose and benefits the customers and residents of the entire project area, the Kern County Subbasin. There are no investors associated with this project, and there shall be no benefits to investors as a result of this project. This section discusses Stormwater Resource Plan Compliance for the overall Proposal. The SGM Grant Program 2019 Guidelines document states that Senate Bill (SB) 985 (Water Code § 10563(c)) requires the development of a SWRP or functionally equivalent plan for stormwater and dry weather runoff capture projects to receive grant funds through these provisions. This Proposal involves funding of a planning effort, not an implementation project. As such, the Subbasin Data Management System Development project would not involve activities that could affect stormwater or dry weather resources. Since this project will conduct no construction, a Stormwater Resource Plan will not be needed. Surface Water Diverter eligibility for the overall Proposal is discussed in this section. The SGM Grant Program 2019 Guidelines document states that a diverter of surface water is not eligible for a water grant or loan awarded or administered by the State unless it complies with surface water diversion reporting requirements outlined in Part 5.1 of Division 2 of the Water Code. The applicant, KRGSA, is not a surface water diverter. No surface water diverters will receive funding from the proposed grant through a joint -powers agreement or other legal agreement. The project included in this proposal will be implemented by the applicant, KRGSA, in collaboration with KGA on behalf of all the GSAs in the Subbasin. KGA is also a GSA within the basin, and KGA is not a surface water diverter. Neither the applicant nor the additional project proponent, KGA, is a surface water diverter, and as such these entities are not required to submit to the State Water Resources Control Board (SWRCB) surface water diversion reports in Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 2-8 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants compliance with requirements outlined in Part 5.1 (commencing with Section 5100) of Division 2 of the Water Code. Therefore, documentation of Surface Water Diverter Compliance is not applicable for this proposal, applicant, or project proponents. It is noted that while the applicant, KRGSA, is not a surface water diverter, two of the member agencies of the KRGSA are surface water diverters. The City of Bakersfield and Kern Delta Water District have longstanding water rights on the Kern River. Both these member agencies are in full compliance with regard to submitting diversion reports with the SWRCB. This section addresses Sustainable Water Use and Demand Reduction eligibility for the overall Proposal. The SGM Grant Program 2019 Guidelines document states that SBx7-7 (Water Code § 10608 et seq.) conditions the receipt of a water management grant or loan for urban water suppliers on gallons per capita per day reduction targets with the end goal of a 20% reduction by 2020. As discussed below in Section K, Urban Water Management Compliance, the applicant, KRGSA, is not an urban water supplier. No urban water suppliers will receive funding from the proposed grant through a joint - powers agreement or other legal agreement. The Sustainable Water Use and Demand Reduction criterion is not applicable for this Proposal. Urban Water Management eligibility for the applicant for this Proposal is discussed in this section. The applicant, KRGSA, is not an urban water supplier. No urban water suppliers will receive funding from the proposed grant through a joint -powers agreement or other legal agreement. The project included in this proposal will be implemented by the applicant, KRGSA, in collaboration with KGA on behalf of and in coordination with all the GSAs in the Subbasin. KGA is also a GSA within the basin, and KGA is not an urban water supplier. Neither the applicant nor the additional project proponent, KGA, is an urban water supplier, and as such these entities are not required to develop or submit Urban Water Management Plans, to maintain compliance with Sustainable Water Use and Demand Reduction, Part 2.55 of Division 6 (Water Code Section 10608 et seq.), or to comply with water metering requirements contained in Water Code Section 525 et seq. Therefore, documentation of Urban Water Management Compliance is not applicable for this proposal, applicant, or project proponents. It is noted that while the applicant, KRGSA, is not an urban water supplier, two of the KRGSA member agencies, the Kern County Water Agency Improvement District No. 4 and the City of Bakersfield, are required to develop and maintain an Urban Water Management Plan (UWMP) that is submitted to DWR for review. Kern County Water Agency Improvement District No. 4 is in full urban water management compliance, having submitted and received DWR approval on its 2015 UWMP, which is included in Appendix B. The City of Bakersfield's UWMP was submitted on June 30, 2017. Documentation is also included in Appendix B. This section addresses Water Metering Compliance eligibility for the overall Proposal. The Round 3 Planning Grants Proposal Solicitation Package states that any urban water supplier applying for State grant funds for wastewater treatment projects, water use efficiency projects, drinking water treatment projects, or for a permit for a new or expanded water supply, shall demonstrate that they meet the water meter requirements in Water Code § 525 et seq. The applicant, KRGSA, is not an urban water supplier. The project included in this proposal will be implemented by the applicant, KRGSA, in collaboration with KGA on behalf of and in coordination with all the GSAs in the Subbasin. KGA is also a GSA within the basin, and KGA is not an urban water supplier. Neither the applicant nor the additional project proponent, KGA, is an urban water supplier. Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 2-9 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants This Proposal is not seeking funding for a wastewater treatment project, water use efficiency project, drinking water treatment project, or permit for a new or expanded water supply. Therefore, the Water Metering Compliance criterion is not applicable for this proposal, applicant, or project proponents. It is noted that while the applicant, KRGSA, is not an urban water supplier, two of the KRGSA member agencies, the Kern County Water Agency Improvement District No. 4 is a treated water wholesaler and provides a supply to four customers. All connections are metered; however, ID4 is not required to obtain documentation because it is not a retail urban water supplier. Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 2-10 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants 5011rdmuffim Appendix A Kern River Groundwater Sustainability Agency GSA Application Package (excerpt) April 12, 2016 GSA application package cover letter submitted to DWR's Sustainable Groundwater Management Section Full application package may be found on KRGSA's website: http://www.kernrivergsa.or, Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Att. 2-11 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants April 12, 2016 Kern River Groundwater Sustainability Agency Mark Nordberg, GSA Project Manager Sustainable Groundwater Management Section California Department of Water Resources P.O. Box 942836 Sacramento, California 94236-0001 Re: Notice of Decision to Become a Groundwater Sustainability Agency Dear Mr. Nordberg, Per Section 10723.8(a) of the California Water Code, the City of Bakersfield, the Kern Delta Water District, and the Kern County Water Agency Improvement District No.4 hereby give notice of their decision to form the Kern River Groundwater Sustainability Agency (GSA) for a portion of the Kern County Subbasin (Basin Number 5-22.14, DWR Bulletin 118) within the San Joaquin Valley Groundwater Basin. The Sustainable Groundwater Management Act (SGMA), passed in 2014, requires that all basins designated as high- or medium -priority basins that are subject to critical overdraft conditions are to be managed under a groundwater sustainability plan (GSP) or coordinated GSPs (Section 10720.7). The Kern County Subbasin is a high-priority basin and is identified as having critical overdraft conditions. Information regarding the status of groundwater basins is provided by the California Department of Water Resources (DWR) at: htt.p www.water.c . o�I al�ouIrndwatel��5 11t cod cfll1"t. This GSA notification and supporting materials are submitted to DWR within 30 days of the decision to form the GSA by its member agencies per Water Code §10723.8(a). Water Code §10723.8(a)(1) requires that this GSA notification include information regarding the service area boundaries of the GSA and the boundaries of the basin the GSA intends to manage. Exhibit 1 includes three maps to satisfy the requirements of Water Code §10723.8(a)(1). Map (A) shows the Kern River GSA boundary. Map (B) shows the Kern River GSA boundary within the Kern County Subbasin. Map (C) shows the boundaries of the service areas of the agencies that comprise the Kern River GSA. The digital GIS data corresponding to the GSA boundary maps shown in Exhibit 1 are included with this submittal and provided on compact disc. Water Code §10723.8(a)(1) also requires information regarding other agencies managing or proposing to manage groundwater within the basin. At the time of this Kern River GSA Notification submittal to DWR, it is our understanding that the Buena Vista Water Storage District has submitted a Notification to Form a GSA with DWR for a portion of the Kern County Subbasin. Within the Kern County subbasin, we understand that other agencies may be considering or proposing to form GSAs to manage groundwater resources in their own services areas. To our knowledge at this time, the following entities have held either a public hearing or expressed interest in forming a GSA: the Kern Groundwater Authority (KGA) and the Olcese Water District. We understand that the Greenfield County Water District has held a public hearing, passed a resolution to form a GSA, and will be submitting their Notification to Form a GSA with DWR. On March 1, 2016 the governing Board of the Kern Delta Water District held a public hearing (Water Code §10723.b) regarding formation of the Kern River GSA. On March 15, 2016 the Board passed Resolution 2016-03 wherein the District resolved to become a GSA in cooperation with the City of Bakersfield and Improvement District No.4 of the Kern County Water Agency for the portion of the Kern County Subbasin as shown in Exhibit 1. Exhibit 2 contains a copy of the approved resolution to form the Kern River GSA by the governing Board of the Kern Delta Water District. Exhibit 3 includes details regarding the public noticing of the March 1, 2016 hearing by the Kern Delta Water District. The noticing process was consistent with the requirements of Section 6066 of the California Government Code. On March 2, 2016 the City Council of Bakersfield held a public hearing (Water Code §10723.b) regarding formation of the Kern River GSA. On March 30, 2016 the City Council passed Resolution 039-16 wherein the City resolved to become a GSA in cooperation with the Kern Delta Water District and Improvement District No.4 of the Kern County Water Agency for the portion of the Kern County Subbasin as shown in Exhibit 1. A copy of Resolution 039-16 is included in Exhibit 2. Details regarding the public noticing of the March 2, 2016 hearing by the City Council are provided in Exhibit 3 and are consistent with the requirements of Section 6066 of the California Government Code. On March 31, 2016 the Board of Directors of the Kern County Water Agency on behalf of Improvement District No.4 held a public hearing (Water Code §10723.b) regarding formation of the Kern River GSA. On March 31, 2016 the Board of Directors passed Resolution 11-16 wherein the Kern County Water Agency, Improvement District No.4 resolved to become a GSA in cooperation with the Kern Delta Water District and the City of Bakersfield for the portion of the Kern County Subbasin as shown in Exhibit 1. A copy of Resolution 11-16 is included in Exhibit 2. Details regarding the public noticing of the March 31, 2016 hearing by the Board of Directors are provided in Exhibit 3 and are consistent with the requirements of Section 6066 of the California Government Code. Exhibit 4 provides a memorandum of understanding (MOU) between the Kern Delta Water District, City of Bakersfield, and Kern County Water Agency Improvement District No.4 to form the Kern River GSA and manage groundwater resources sustainably within the GSA boundary. Please note that Exhibit C-1 to the MOU in Exhibit 4 contains a list of additional agencies that have joined the Kern River GSA. Exhibit 5 includes additional supporting documents related to these additional agencies that have joined the Kern River GSA. Per California Water Code §10723.2, GSAs shall consider the interests of all beneficial uses and users of groundwater within their service area, as well as those responsible for implementing Groundwater Sustainability Plans (GSPs). Exhibit 6 lists interested parties developed pursuant to Water Code §10723.2 and describes how these users and uses will be considered during the development and operation of the Kern River GSA and implementation of the GSP for the Kern River GSA. If additional interested parties are discovered, they too will be included in the development and operation of the GSA and the development and implementation of the agency's sustainability plan (Water Code 10723.8(a)(4)). Water Code §10723.4 states that a GSA shall also establish and maintain a list of persons interested in receiving notices regarding plan preparation, meeting announcements, and availability of draft plans, maps, and other relevant documents. Any person may request, in writing, to be placed on the list of interested persons. The Kern River GSA will establish anc maintain such a list of persons interested in receiving notices. Except for the authorities granted to a GSA pursuant to Part 2.74 of Division 6 of the California Water Code (SGMA), no new bylaws, ordinances, or authorities have been adopted by the District or City at this time of forming the Kern River GSA (Water Code §10723.8(a)(3)). The undersigned hereby represents that the information required by California Water Code §10728.3 is included within this notice and that the notification process is complete. If you have any further questions or require any clarification regarding the information provided in this GSA Notification submittal, please do riot hesitate to contact one of our GSA program coordinators as identified on the following page, Thank Rodney Palla President, Board of Directors, Kern Delta Water District ,k� I-larold Fla In Vice Ma car, of Bakersfield Ted Page '(�) President, Board of Directors, Kern County Water Agency 22jawm3m= Art Chianelllo Water Resources Manager Water, Resources Department (661) 326-3715 A�(hLanel�b �jkersf�ieidjjty.us Mrom Mark Mulkay General Manager Kern Delta Water District (6,61) 834-4656 ,ng 2 ,,Rcig i � 0) , r (Lg kguK(2 1,,g!(j 111MMIMM Manager Kern County Water Agency Improvement District No. 4 (661) 634-1400 ,cftfif�A,ACDgAa_,cm Exhibit 1: GSA Maps—, including (A) map of Kern River GSA boundary, (B) map of Kern River GSA boundary withrin Kern County Subbasin, and (C) map of Kern River GSA showing member agencies service area boundaries Exhibit 2: GSA Forming Resolutions by Kern Delta Water District, City of Bakersfield, and Improvement District No. 4, of the Kern County Water, Agency Exhibit 3: Public Hearing Noticing Information for GSA Member Agencies Exhibit 4: Memorandum of Understanding (MOM) Between the City of Bakersfield, Kern Delta, Water District, and Improvement District NoA, of the Kern County Water Agency Exhibit 5: Supporting Documents for Entities Also Joining the Kern River GSA Exhibit 6: List of Interested Parties Exhibit 7, List and Map of Disadvantaged Communities (DAC) in GSA rd OffIlrdmuffim Appendix B Compliance Documentation UWMP Documentation AWMP Documentation Kern County Subbasin Groundwater Sustainability Plan Support ® Phase 11 Att. 2-12 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants STATE OF CALIFORNIA- CALIFORNIA NATURAL RESOURCES AGENCY DEPARTMENT OF WATER RESOURCES 1416 NINTH STREET, P.O. BOX 942836 SACRAMENTO, CA 94236-0001 (916)653-5791 August 30, 2016 Mr. David Beard Improvement District No. 4 Manager Kern County Water Agency 3200 Rio Mirada Drive Bakersfield, California 93308 RE: Urban Water Management Plan Requirements Addressed Dear Mr. Beard: EDMUND G. BROWN JR., Governor The Department of Water Resources (DWR) has reviewed the Kern County Water Agency's 2015 Urban Water Management Plan (UWMP) that was received on June 24, 2016. The California Water Code (CWC) directs DWR to report to the California State Legislature once every five years on the status of submitted UWMPs. In meeting this legislative reporting requirement, DWR reviews all submitted UWMPs. DWR's review of the Kern County Water Agency's 2015 UWMP has found that the UWMP addresses the requirements of the CWC. DWR's review of plans is limited to assessing whether suppliers have addressed the required legislative elements. In its review, DWR does not evaluate or analyze the supplier's UWMP data, projections or water management strategies. This letter acknowledges that the Kern County Water Agency's 2015 UWMP addresses the CWC requirements. The results of the review will be provided to DWR's Financial Assistance Branch. If you have any questions regarding the review of the UWMP or urban water management planning please call Gwen Huff at 916-651-9672. Sincerely, 4xI 1 Xiv,/ � Vicki Lake Unit Chief Urban Water Use Efficiency (916) 651-0740 Electronic cc: Luis Avila DWR Jeff Eklund Provost & Pritchard Consulting Group STATE OF CALIFORNIA -CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor DEPARTMENT OF WATER RESOURCES QP 1416 NINTH STREET, P.O. BOX 942836SACRAMENTO, CA 94236-0001(916) 653-5791 July 11, 2017 Art Chianello Water Resources Manager City of Bakersfield 1000 Buena Vista Road Bakersfield, California 93311 Dear Mr. Chianello: n rr 1 "r This is to inform you that the Department of Water Resources has received the 2015 Urban Water Management Plan for City of Bakersfield on June 30, 2017. DWR reviews Plans as quickly as possible and in the order they are received. If you require an expedited review, please contact me. Please feel free to contact Gwen Huff at (916) 651-9672 if you have any questions or would like to discuss the review of 2015 Urban Water Management Plans. Contact Ms. Huff, also, if you require an expedited review. Vicki Lake Unit Chief Urban Water Use Efficiency Department of Water Resources (916) 651-0740 11/3/2017 2015 Agricultural Water Management Plans List 2015,A.gFicultural Water 2015 Agricultural Water Management Plans List SBX 7®7 Plans Alta ID Water Management Plan Voll '11 of 4 Vdi 2 of 4 Voll 3 of 4 Vdi 4 of 4 [:Irowiris va�Hl �os �ICED 2(16AWMlP [3ijeiria Vsta 2015 AWKP l3utte W[ 2016 AWMlP ._? WIMP Riri4l 20171024 Cairrirosa WILD 2015 AWMP L ,--Jjliruterii ru "�alllley,. 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Project Description.............................................................................................................. 1 Background and Need for the Project.................................................................................1 Project Goals and Objectives..............................................................................................3 Toolsto Be Developed........................................................................................................4 Differentiation from Round 2 Funding.................................................................................4 B. Project Benefits................................................................................................................... 5 C. Technical Expertise............................................................................................................. 7 ProjectDetails.......................................................................................................................................... 8 D. Scope of Work and Deliverables......................................................................................... 8 a. Scope of Work................................................................................................................. 8 b. Project Deliverables......................................................................................................11 Miscellaneous........................................................................................................................................12 E. Project Support................................................................................................................. 12 Tables None Figures Figure 3-1. Kern County Subbasin and Benefitting Area................................................................. 2 Appendices See Appendix C in Attachment 6, SDAC-DAC-EDA Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-i Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 ® Work Plan Grant Proposal Kern County Subbasin Groundwater Sustainability Plan Support — Title: Phase II Applicant: Kern River Groundwater Sustainability Agency The Kern County Subbasin (Subbasin 5-022.14) is identified as a critically overdrafted basin where numerous water and irrigation districts, municipalities, industries, mutual water companies, small water systems, and Kern County residents rely on the shared groundwater resources. In compliance with the Sustainable Groundwater Management Act (SGMA), 11 groundwater sustainability agencies (GSAs) have been formed to cooperatively manage local groundwater in a sustainable manner within the Subbasin. This proposal includes one critically important project, Kern County Subbasin Data Management System Development, which will be implemented by all the GSAs in the Kern County Subbasin. KRGSA is submitting this application on behalf of the entire Subbasin. KRGSA on behalf of the Kern County Subbasin was awarded $1,500,000 in Proposition 1 SGMA Planning Grant funds for a suite of six GSP Development project components supporting the entire Kern County Subbasin and proposed under the 2017 Round 2 SGMA grant opportunity. These six project components are well underway and successfully nearing completion at the time of this writing. Given the funding guidelines associated with this 2019, Round 3 SGM Planning Grant opportunity, this proposal requests an additional $500,000 in Planning Grant funds, which if awarded, will mean that the Kern County Subbasin will have been awarded the published maximum of $2,000,000 in Proposition 68 and Proposition 1 SGM Planning Grant funding. The Kern County Subbasin is one of the most important groundwater resources in the state, given its large size, high population growth, large number of irrigated acres, reliance on groundwater, and historical groundwater impacts. In light of these relatively high basin prioritization criteria, the Subbasin supports numerous large groundwater banking projects of statewide importance, including the Kern Water Bank, among others. This Subbasin is deserving of earning up to the maximum of grant funding due to the importance of this Subbasin and its various planning needs and challenges. This project included in this proposal and described below will parlay the available $500,000 in Planning Grant funds to effectively initiate a data management system (DMS) that will benefit all GSAs in the Subbasin and directly support the cross -basin coordination effort. Background and Need for the Project Covering about 2,834 square miles, Kern County Subbasin is the largest subbasin in California with a complex water management structure, a large portfolio of local and imported water sources, and numerous large groundwater banking projects, collectively providing both local and State-wide benefits for water supply. The map provided in Figure 3-1 below shows the boundaries of the Kern County Subbasin, which is also the area that would benefit from the proposed project, as well as the boundaries of the multiple water districts within the Subbasin. The general locations of Disadvantaged Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-1 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 — Work Plan Communities (DACs) are shown in bold -face type; a map showing the areas occupied by DACs is provided as Figure 6-1 in Attachment 6. Figure 3-1. Kern County Subbasin and Benefitting Area /i itNnwga� aunty wwmmr ib lMh'ac2 a�irn-cuaa.rM j//�� i rl/ ria ���/��� � � if p�d �ar��' � �•„ „a^ powRra�rn peon �aaagnutw etup«. � 1, � ��i�%% - r /r� ax &': amrearrocrr ,. pkc�mra�ro E,I'?::. Ill, €., a�arw6r0 sJfft9 waaac,t for rraewv,,, r imiw'akrvrl tract I} pawnYSzm ue Na D I,,. ay karek C�rci�a II� " I, fadh M �!�%i// ,,, //i/i//// ri/i } .'• t � ,,,,d,.�,a a�a,a�� e ; 7;�aaue� ,.I ,I,r�w• drt`��// � � / � ��� �/ / t„a�ndp;.� namrtrr�a rKira � � 9+ uutl�r�� 6��ffMcC 4 y'Yaaror6�Nq / � 1 % I'+;II�dfS�r} �Ns•',� /Y / l/%i i C i lk�r,,��'�rr l �,4 wc+r+�t�r � AY11-Edi West Ninr�n � f " G a�a��r , � ., 1c�ach a�ft�a mM'OOc p+a0do^mca�r51ataapa Sp tar aa Taft prurc�r arae waMa� va r upm o - as®� ��pnawra VIN "1l� irJV I Won rraMarrd ffff N 0 5 10 20 1 1 I M Kern County Subb a,sm = Benefiting Area Given this framework, numerous approaches and systems for data management have been developed over time by each local agency for its own objectives — including regulatory compliance. This has resulted in a myriad of disparate data sets with different organizational structures, temporal and spatial scales, data standards, and assumptions regarding data accuracy and reliability. GSP regulations (Article 3, Section 352.6) require agencies to develop and maintain a data management system that is "capable of storing and reporting information relevant to the development or implementation of the Plan and monitoring of the basin." The Kern County Subbasin GSAs recognize the need to develop a centralized DMS on a Subbasin- wide basis. Accordingly, the GSAs in the Kern County Subbasin are cooperating on this proposal for a Subbasin-wide DMS to support monitoring, evaluation, reporting, management, and, importantly, GSP implementation. It is recognized that compilation of individual DMSs will require significant manipulation and re -structuring to create a centralized relational DMS that is populated with consistent data sets across the Subbasin. One of the hallmarks of SGMA is a call for the integrated coordination of groundwater resources across a subbasin planning area. For the Kern County Subbasin, developing a shared, common, and consistent platform across the Subbasin is essential to continue the coordination developed with the C2VSim water modeling, monitoring network, and now annual reporting. Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Att. 3-�� Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 3 ® Work Plan The immediate need for a centralized DMS is highlighted by the GSAs' ongoing cooperative efforts for annual reporting. Specifically, GSAs are working together to collaboratively prepare one Annual Report for each reporting period that covers the entire Subbasin rather than submitting a separate Annual Report from each GSA. As codified in SGMA, Chapter 6, Section 10728 of the California Water Code states: "On April 1 following the adoption of a groundwater sustainability plan and annually thereafter, a groundwater sustainability agency shall submit a report to the department containing the following information about the basin managed in the groundwater sustainability plan: (a) Groundwater elevation data. (b) Annual aggregated data identifying groundwater extraction for the preceding water year. (c) Surface water supply used for or available for use for groundwater recharge or in -lieu use. (d) Total water use. (e) Change in groundwater storage." In order to comply with the requirements of SGMA for standardized reporting, and to coordinate on a Subbasin-wide basis for consistent data evaluation, it is crucial that a DMS be developed for the entire Subbasin that will allow the various GSAs to gather and share information regarding local groundwater conditions on a shared and consistent data platform. Project Goals and Objectives The overarching goal of the proposed Subbasin Data Management System Development project is to initiate the key steps to develop and build the Subbasin DMS, which will ultimately support Subbasin GSAs by providing (1) improved coordination of groundwater monitoring and management actions and (2) the ability to meet the reporting and implementation requirements of their respective groundwater sustainability plans (GSPs) and the California Department of Water Resources (DWR). It is noted that the total cost to complete the entire DMS development for the Kern Subbasin will likely exceed the available grant funding of $500,000 under the Sustainable Groundwater Management (SGM) Grant Program, Round 3 (this grant application). This application is submitted to initiate the key steps to develop and build the Subbasin DMS. This Work Plan and the associated Budget and Schedule describe tasks to be funded under this grant and within the available funding, as well as additional tasks that will likely require additional funding, above and beyond this SGM Planning Grant, to be shared among Subbasin GSAs who have already developed successful cost sharing structures for numerous components of the GSP including coordinated development of the Subbasin-wide integrated surface water -groundwater model (C2VSimFG-Kern). The Subbasin GSAs are committed to providing sufficient funds and resources to complete the project. The work plan steps requested under this grant will provide the necessary DMS framework, addressing needs and processes such as accessibility, transparency, functionality, reliability, and data sharing, among others. The DMS project description, budget, and schedule information provided in Attachments 3, 4, and 5 describe the tasks that will be conducted under the funding support of this grant. The project objectives are as follows: • Identify data types to be included in the DMS and required to monitor GSP implementation and Subbasin progress toward sustainability. (funded under this grant) • Investigate and compare commercially available DMS packages and custom systems to determine the most appropriate and cost-effective format for the Kern County Subbasin DMS. (funded under this grant) ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-3 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 — Work Plan • Select a preferred DMS approach. (funded under this grant) • Procure or design the DMS and customize as needed with an appropriate configuration that combines technical rigor, flexibility, ease of use, and expansion capabilities to store data in text, spreadsheet, graphical, and map -based formats. (partially funded under this grant; The any additional funding to be provided by Subbasin GSAs) • Develop data templates that allow each GSA or participating agency to submit the required data in a consistent format that can be combined and adjusted to present information in both local and Subbasin-wide formats to meet DWR reporting requirements. (funded under this grant) • Develop a DMS User's Manual and train GSA staff to gather, submit, and update the required data on a regular basis and in a consistent format. (funded under this grant • Coordinate with local stakeholders, non-member agencies, and disadvantaged communities (DACs), such as the Cities of Shaffer and Arvin and portions of the City of Bakersfield, that have potential activities, tasks, and/or components that are complementary to the DMS development project. (funded under this grant) Tools to Be Developed The proposed Subbasin Data Management System Development project will initiate the key steps to develop and build a critically important DMS for the Kern County Subbasin. Specific tools to be developed during implementation of this grant -funded scoping and development effort include the following: • A process for identifying necessary data types; • A comparison/decision-making tool for evaluating commercially available DMS packages and custom systems against the needs and resources of the Subbasin; • The DMS itself, customized to meet the data needs of the Subbasin GSAs; and • A DMS User's Manual to train GSA staff in the use of the DMS. Differentiation from Round 2 Funding KRGSA is the administering agency for Round 2 funding of six projects under the Kern County Subbasin Groundwater Sustainability Plan Support — 2017 Grant Application (DWR Agreement No. 4600012955): • Component 1: Grant Administration (KRGSA responsibility) • Component 2: Groundwater Modeling (KRGSA responsibility) • Component 3: Groundwater Model Peer Review (KGA responsibility) • Component 4: Hydrogeologic Conceptual Model and Groundwater Conditions (KGA responsibility) • Component 5: Groundwater Sustainability Plan Coordination (KGA responsibility) • Component 6: GSP Development (KRGSA responsibility) No funding was requested from DWR in Round 2 for the purpose of developing a DMS for the Subbasin, nor is funding being applied to such efforts. The DMS development project included in this proposal is a new and unique project and in no manner duplicative of work included under the six components included in the Round 2 Proposition 1 grant. Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 3-4 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 3 ® Work Plan Historically, individual GSAs and their member agencies have developed separate systems to comply with various regulations; however, the GSAs in the Kern County Subbasin recognized the need to develop a centralized DMS on a Subbasin-wide basis to specifically conform to the needs of the GSAs and reporting entities to support the Subbasin GSPs. Accordingly, the Subbasin GSAs are cooperating on this proposal for a Subbasin-wide DMS to support monitoring, evaluation, reporting, management, and, importantly, GSP implementation. Compiling the individual DMSs into a coherent system will require significant manipulation and re -structuring to create a centralized relational DMS that is populated with consistent data sets across the Subbasin. The work being undertaken with Round 2 grant funds, which involves development of GSPs for GSAs in the Subbasin in compliance with SGMA, is proceeding in accordance with DWR-mandated deadlines and will be completed on schedule. No cost overruns have been identified for Round 2 projects, and no additional funding will be required for completion of these projects. No Round 3 funding is intended to be allocated toward these projects. The Kern County Subbasin Data Management System Project being proposed for Round 3 funding will allow the GSAs to comply with the requirements of SGMA Article 2 (§ 352.6), which requires each GSA to develop and maintain a DMS that is capable of storing and reporting information relevant to the development or implementation of a GSP and monitoring of the basin. Also required under SGMA is the development of a coordinated DMS for the Subbasin (Article 8, § 357.4). The project will assist the GSAs in meeting the requirements of SGMA annual reporting to DWR by April 1 of each year following adoption of its GSP (§ 356.2), as well as the reporting standards provided in Article 3 (§ 352.4) and reporting provisions found in Article 4 (§ 353.4). B. Project Benefits Covering about 2,834 square miles, Kern County Subbasin is the largest subbasin in California with a complex water management structure, a large portfolio of local and imported water sources, and numerous large groundwater banking projects, collectively providing both local and State-wide benefits for water supply. Accordingly, the GSAs are cooperating on this proposal for a Subbasin- wide DMS to support monitoring, evaluation, reporting, management, and, importantly, GSP implementation. The project has two primary benefits that relate to the Subbasin, DACs within the Subbasin area, and all beneficial users of Subbasin groundwater: (1) development of a Subbasin-wide database that will allow consistent collection and comparison of data from multiple GSAs; and (2) improved watershed coordination among the GSAs. Database Development: The project will allow the Subbasin GSAs to identify and develop a DMS suitable for collection, storage, and analysis of the various types of data to be generated to support their GSPs. The project will allow the Subbasin GSAs to comply with the requirements of SGMA Article 2 (§352.6), which requires each GSA to develop and maintain a DMS that is capable of storing and reporting information relevant to the development or implementation of a GSP and monitoring of the basin. The proposed project will develop a common data system that all GSAs in the Subbasin can use, and this will enable better coordination across the various GSAs. The goal of the DMS is to support Subbasin GSAs by providing (1) improved coordination of groundwater monitoring and management actions and (2) the ability to meet the reporting and implementation requirements of groundwater sustainability plans (GSPs) and the California Department of Water Resources (DWR). Watershed Coordination: Located in the largest county and the southern end of the DWR Tulare Lake Hydrologic Region, the Kern County Subbasin involves numerous large and small watersheds of the Sierra Nevada, San Emigdio and Tehachapi mountains, and the Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-5 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 — Work Plan Coast Ranges. As demonstrated through the Integrated Regional Water Management Planning (IRWMP) Group process, Subbasin agencies associated with these contributing watersheds have coordinated on multiple projects over the years and have continued working together collaboratively during the GSP process. To comply with SGMA requirements SGMA for standardized reporting, and to coordinate on a Subbasin-wide basis for consistent data evaluation, it is crucial that a DMS be developed collaboratively for the entire Subbasin, allowing GSAs to combine and share data and information regarding local groundwater conditions using a consistent and comprehensive data platform. The Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 2019 Grant Application includes outreach, engagement, and support to benefit DACs throughout the entire Subbasin. During numerous community outreach meetings, DAC representatives have been engaged with questions and comments on Subbasin data. The following DAC communities within the Kern County Subbasin are identified as cities or Census Designated Places (CDPs) in DWR's DAC database. All communities qualifying as DACs within the Kern County Subbasin will benefit as a result of the DMS project. Arvin Lost Hills CDP Shafter Buttonwillow CDP Maricopa Smith Corner CDP Delano McFarland South Taft CDP Edmundson Acres McKittrick CDP Taft CDP Mettler CDP Taft Heights CDP Ford City CDP Mexican Colony Tupman CDP Fuller Acres CDP CDP Valley Acres CDP Greenfield CDP Oildale CDP Wasco Lamont CDP Richgrove CDP Weedpatch CDP The project would include outreach to DAC staff that are required to report under SGMA. Accessibility of data has been a highly sensitive issue to many stakeholders in the Subbasin with concerns about transparency and privacy. Consistent communication and transparency of the DMS development process will be key to obtaining support from the Subbasin's beneficial users of groundwater. To support this budget category for Stakeholder Engagement, technical meetings will be held with the DAC staff that are required to report data to DWR, to obtain buy -in to the Subbasin DMS process. As part of the IRWMP process, various groups were formed in the Kern County Subbasin as a means of developing a collaborative approach involving the governing group of water management districts, regional Stakeholders, and all other Interested Parties (e.g., landowners, public, local communities), all of which were working on regional water management planning and implementation activities. DACs are directly represented in the IRWM groups through a DAC Representative, an elected member of the governing Regional Water Management Group who addresses the issues and needs of these areas. Moreover, the DACs are represented by a DAC "Work Group" consisting of individual participants from the following identified groups or communities: Ducor Community Services District, Buttonwillow County Water District, Bishop Acres Mutual Water Community, Semitropic School District, Pond Union School District, City of McFarland, City of Delano, City of Wasco, Lost Hills Utility District, Blackwells Corner, and Earlimart Public Utility District. The IRWM Group gives substantial consideration to the issues and needs of these DACs during all regional planning and implementation activities. The IRWM Group has worked closely with DACs for many years to identify DAC concerns and to promote potential solutions, either as standalone projects or programs or as a component of IRWM grant submissions. Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 3-6 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 3 — Work Plan Letters of support for the Kern County Subbasin Groundwater Sustainability Plan Support — Phase II 2019 Grant Application — including a joint letter signed by the agencies required to report under SGMA in the Subbasin — have been provided by several beneficial stakeholders and can be found in Attachment 6, Appendix C. As noted previously, outreach to DACs will continue to occur throughout development of the DMS. With grant funding, the DMS project will be better situated to conduct outreach to, engage, and include DACs and DAC concerns so that DACs will benefit from easier access to groundwater sustainability information. The GSAs and participating agencies in the Kern County Subbasin have been working cooperatively for several years to develop GSPs that accurately depict the groundwater management conditions of the Subbasin. Accordingly, the Subbasin GSAs are familiar with the data types and sources in the Subbasin as well as the need to combine and share information. This process will ensure the accuracy of their respective GSPs within the larger Subbasin context and contribute to the success of management actions being proposed for implementation. This need for cooperative and consistent data collection, recordation, management, and use is the impetus for the Data Management System Development project being proposed for this grant. Agencies involved in this project all involve talented engineers available to lead and assist with this proposed project. All of the agencies are familiar with groundwater data and have experience in groundwater monitoring and management. Thereby, agencies clearly contain the technical expertise to lead in the development of a Subbasin DMS. Many of the agencies also contain web -based technical expertise to provide oversight for potential development of web -based systems and/or complex database structures. GSAs have already demonstrated their collective technical expertise to lead and provide oversight for complex technical projects, including the development of a numerical integrated surface water—groundwater model for GSP applications. Data collection efforts for that model were successfully undertaken by agencies and their technical consultants. GSAs will employ rigorous Request for Proposal/Qualifications process to ensure that qualified and competent technical agents are retained for the complex DMS tasks. KRGSA on behalf of the all the GSAs in the Kern County Subbasin was awarded $1,500,000 in Proposition 1 SGMA Planning Grant funds for a suite of six GSP Development project components supporting the entire Kern County Subbasin and proposed under the 2017 Round 2 SGMA grant opportunity. These six project components supported by the Proposition 1 planning grant have, and continue to, contribute to development of the all the GSPs in the Kern County Subbasin, which are currently undergoing public review and successfully nearing completion at the time of this writing. GSPs are on schedule to comply with the SGMA requirement that all GSPs for critically overdrafted basins be submitted to DWR by January 31, 2020. This success of the technical components of multiple GSPs, funded in part by a DWR grant, again demonstrates the ability of the GSAs to lead a large, complex technical project such as the DMS development, assisted again with DWR funding. Letters of support for the Kern County Subbasin Groundwater Sustainability Plan Support — Phase II 2019 Grant Application have been provided by several beneficial stakeholders and can be found in Attachment 6, Appendix C. Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 3-7 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 3 ® Work Plan a. Scope of Work Subbasin Data Management System Development Implementing Agency: KRGSA Task (a): Grant Administration (funded under this grant) This task includes managing and administering the project including invoicing, reporting, and grant contract administration. 1. Grant Management Coordinate with DWR and conduct administrative responsibilities to execute a Grant Agreement and ensure that all contract requirements are met. 2. Invoicing Prepare and submit to DWR invoices including back up documentation. Backup will be collected and organized by budget category, along with an Excel compatible summary document detailing the contents of the backup documentation. 3. Report Preparation Prepare and submit quarterly Progress Reports prepared in accordance with Exhibit F. Prepare and submit draft Grant Completion Report prepared in accordance with Exhibit F. Prepare a Final Grant Completion Report addressing the DWR Project Manager's comments and submit to DWR in accordance with the provisions of Exhibit F. Deliverables: • Executed Grant Agreement • Invoices and associated backup documentation • Quarterly Progress Reports • Draft and Final Grant Completion Report Task (b): Stakeholder Engagement / Outreach (funded under this grant) Accessibility of data has been a highly sensitive issue to many stakeholders in the Subbasin with concerns about transparency and privacy. Consistent communication and transparency of the DMS development process will be key to obtaining support from the Subbasin's beneficial users of groundwater. To support this budget category for Stakeholder Engagement, technical meetings will be held with the DAC staff that are required to report data to DWR, to obtain buy -in to the Subbasin DMS process. 1. Technical Meetings Hold technical meetings with staff of DACs that are required to report data to DWR. Deliverables: • Meeting agenda with DAC staff • Workshop presentation documentation Task (c): GSP Development: Subbasin DMS Scoping and Development 1. Retain Consultant to Assist with DMS Development (funded under this grant) Dern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-3 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 ® Work Plan This task includes (a) generating a Request for Proposals (RFP) seeking a qualified professional consulting firm that will assist with development, management, and coordination of the Data Management System (DMS), (b) issuing the RFP, and (c) contracting with the selected firm. During RFP development, the GSAs will work together in a series of meetings to identify high- level goals and basin needs for ongoing data management. Considerations will include, but not be limited to, data coordination, transparency, sharing, and GSP-required components such as those needed to assist with the Subbasin water budget. Data tracking as required under SGMA will also be considered, including the need to track specific DWR-defined categories for water sources and sectors. In addition, DWR has not yet developed the online forms that may need to be completed for GSP annual reporting and may require specific data formatting in the DMS. Accordingly, the DMS will need to be sufficiently flexible to meet a variety of GSA needs. The GSA group will discuss and identify a range of alternatives for various DMS levels of sophistication ranging from a relatively simply Subbasin-wide relational database to various web - based platforms with broader functionality and visualization tools. In addition, GSAs will reach out to GSAs in other subbasins to gain insight from "lessons learned" as others use existing DMS structures for SGMA purposes. In this manner, the GSAs will ensure that the RFP is written to target firms capable of providing the required technical services. The GSAs may prefer a phased approach, requiring different consulting services for each phase. nPlivPrahlPS- • RFP • Executed contract 2. Identify Information Requirements for DMS (funded under this grant) This task involves coordination with all the GSAs in the Subbasin and their groundwater consulting firms, to identify the types and sources of data required to monitor GSP implementation, to evaluate groundwater conditions, and to document Subbasin progress toward sustainability. The DMS consultant will work collaboratively with GSAs, a technical DMS subcommittee, and/or a designated Subbasin consultant to develop a list of necessary data types, sources, and preferred formats (e.g., text, spreadsheet, graphical, and map -based formats) for each, which will be presented to all the GSAs in the Subbasin for input and approval. Considerations will be given to data structures and formats being used for other monitoring programs in the Subbasin to provide efficiencies for agencies with multiple reporting obligations. The structure of State and local databases may also need to be considered if data will be downloaded periodically from existing sources. Some of this work will be accomplished in parallel with Task (c)(1) above to inform the needs of the RFP. Remaining work will be conducted in consultation with the DMS consultant to bring the required details of the DMS into focus. Deliverables: List of data types and sources to be collected to meet ongoing requirements under SGMA 3. Investigate and Select an Appropriate DMS (funded under this grant; The DMS Consultant (contractor) will investigate and compare commercially available DMS packages and custom systems to determine the most cost-effective and usable format for the DMS. The comparison will focus on DMS features determined to be of highest priority by the GSAs and will include items such as levels of security, data entry and uploading, QA/QC, spatial or graphical visualization, potential linkage to other systems, an appropriate user interface, and, importantly, ease of use. Costs of software, support/upgrades, copyright protections, or other Dern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-9 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 ® Work Plan proprietary restrictions will be documented. The contractor will also consider the technical expertise of those users responsible for entering, uploading, and managing the system for the future. A flexible system that can be readily modified with additional modules or functions in the future may be desirable. Costs will be provided for both development and maintenance of the DMS. The contractor will prepare a report identifying the commercially available packages and custom systems, detailing the advantages and disadvantages of each and offering a series of recommendations for GSA Boards' consideration. nPlivPrahlPS- • Report with recommendation for GSA Boards' consideration • GSA Boards' decision to select a DMS package 4. Procure/Design and Customize the Selected DMS (funded under this grant; additional funding to be provided by GSAs if needed) Following the GSA Boards' decision, the contractor will procure or design the selected DMS and customize as needed with an appropriate configuration that combines technical rigor, flexibility, ease of use, and expansion capabilities to store data in text, spreadsheet, graphical, and map - based formats, as needed. The system will be implemented according to the requirements identified in Task (c)(2). Deliverables: • Documentation of the Kern County Subbasin DMS 5. Develop Data Protocols and Templates (funded under this grant) The contractor will develop data templates that allow each GSA or participating agency to submit the required data in a consistent format that can be combined and adjusted to present information in both local and Subbasin-wide formats to meet DWR reporting requirements. Templates and tables will also be developed for DMS output and reporting. Importantly, protocols and a quality assurance/quality control (QA/QC) process will be developed and documented that considers data entry, uploading, downloading, and DMS accessibility. Protocols will also consider data protection and DMS security. Deliverables: • Data templates and tables 6. Develop DMS User's Manual and Train GSA Staff (funded under this grant) GSA staff will be trained in data collection, appropriate use of templates, and uploading procedures to ensure that all GSAs are providing consistent information to the DMS. In addition to the system documentation of the DMS system produced in Task (c)(4), the contractor will develop a functional user's manual that describes templates, outlines DMS protocols, and provides step- by-step procedures for a variety of users and uses. Deliverables: • Training session or module for GSA staff • User's Manual 7. Review and Assessment of DMS (funded by GSAs as needed) Monitoring and assessment activities will include initial review of the DMS by primary users (GSA staff and their groundwater consultants) to determine the suitability of templates for uploading Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-10 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 ® Work Plan data and the suitability of the database for combining and using data. Numerous test runs of the new DMS will be conducted to work out system bugs and/or address functional issues. It is anticipated that one reporting period can be managed with the new DMS to provide a test case for future use. After grant completion, the DMS will be assessed on an ongoing basis for potential upgrades, additions or modifications to data, and other DMS adjustments to be funded by the GSAs. Deliverables: • Initial review and recommendations for modifications Task (d): Monitoring / Assessment This project is a planning effort and does not involve on -the -ground monitoring activities. Deliverables: • Initial review and recommendations for modifications b. Project Deliverables Deliverables to be provided as a result of implementing the proposed project will include the following items, presented by task: Task (a): Grant Administration (funded under this grant) Deliverables: • Executed Grant Agreement • Invoices and associated backup documentation • Quarterly Progress Reports • Draft and Final Grant Completion Report Task (b): Stakeholder Engagement / Outreach (funded under this grant) Deliverables: • Technical meeting agenda with DAC staff that will be required to report data Task (c): GSP Development: Subbasin DMS Scoping and Development 1. Retain Consultant to Assist with DMS Development (funded under this grant) • RFP • Executed contract 2. Identify Information Requirements for DMS (funded under this grant) • List of data types and sources to be collected to meet ongoing requirements under SGMA 3. Investigate and Select an Appropriate DMS (funded under this grant) Possible Deliverables to be provided under this grant: • Report with recommendation for GSA Boards' consideration Dern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 3-11 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 3 ® Work Plan • GSA Boards' decision to select a DMS package 4. Procure/Design and Customize the Selected DMS (funded under this grant; additional funding to be provided by GSAs if needed) Deliverables: • Documentation of the DMS 5. Develop Data Protocols and Templates (funded under this grant) Deliverables: Data templates and tables 6. Develop DMS User's Manual and Train GSA Staff (funded under this grant; additional funding to be provided by GSAs if needed) Deliverables: • Training session or module for GSA staff • User's Manual 7. Review and Assessment of DMS (funded by GSAs as part of GSP process) Deliverables: • Initial review and recommendations for modifications Task (d): Monitoring / Assessment (funded by GSAs as part of GSP process) This project is a planning effort and does not involve on -the -ground monitoring activities. Environmental Compliance and Permitting This Proposal covers the selection and development of a DMS for use by the entire Kern Subbasin to comply with SGMA. The Subbasin Data Management System Development Project does not qualify as a "Project" as defined under CEQA. Under CEQA, a "Project" refers to an action that has the potential to result in a physical change to the environment (Pub. Res. Code § 21065). This proposal consists of research, planning, and data collection and will not result in any foreseeable impact on or alteration of the physical landscape in any shape, matter, or form. Therefore, CEQA does not apply to this Proposal. E. Project Support A joint letter of support for the project, signed by the members of the entire Kern County Subbasin as well as participating DAC entities, is included in Attachment 6, Appendix C. Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Att. 3-1 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Kern County Subbasin Groundwater Sustainability Plan Support - Phase II 20.1 9 Grant App� ihAMIM11.4", T'T H1H ENT -0 BUDGET Grant Proposal Summary Budget Table Proposal/Component Detailed Budget Table Budget Description 2 3 Kern County Subbasin Groundwater Sustainability Plan Support ® Phase II Att. 4-i Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants Attachment 4—Budget Table 5A—Grant Proposal Summary Budget (No Components) Grant Proposal Title: Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Applicant: Kern River Groundwater Sustainability Agency (KRGSA) Grant Proposal serves oneed ofoOA?:XYes UNo Local Cost Share requested: El 25% El 15% El 10% X 0% 1 Only these Budget Categories ahoU be used. Tasks can be added for more detail. zList sources offunding: Assumes DAC waiver foxkooa/cost share Kern County GubbasinGroundwater Sustainability Plan Support —PhaseU Att. 4-1 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 4 ® Budget Mo " Table 6A – Proposal Detailed Budget Grant Proposal Title: Kern County Subbasin Applicant: Kern River Groundwater Sustainability (No Components) Groundwater Sustainability Plan Support - Phase 11 Agency (KRGSA) —. — (a) -------------------------- — ----------------- (b) Local Cost Share: (c) Budget Categories' Requested Grant Non -State Fund ...................................................................................................................................................................................................................................................... Amount ............................................................................................................................... Source2 .................................................................................................................................... Total Cost .................................................................................................................................... (a) Grant Administration ..................................................................................................................................................................................................................................................... $25,000 ............................................................................................................................... $0 ...................................................................................................................................... $25,000 ..................................................................................................................................... Task 1. Grant Management ..................................................................................................................................................................................................................................................... $4,000 ............................................................................................................................... $0 Task 2. Invoicing ..................................................................................................................................................................................................................................................... $9,000 ............................................................................................................................... $0 ...................................................................................................................................... .................................................................................................................................... Task 3. Report Preparation ..................................................................................................................................................................................................................................................... $12,000 ............................................................................................................................... $0 (b) Stakeholder Engagement $2,500 $0 $2,500 Outreach ..................................................................................................................................................................................................................................................... ............................................................................................................................... ...................................................................................................................................... Task 1. Technical Meetings ..................................................................................................................................................................................................................................................... $2,500 ............................................................................................................................... $0 ..................................................................................................................................... (c) GSP Development: Subbasin $472,500 $0 $472,500 DMS Scoping and Development ..................................................................................................................................................................................................................................................... ............................................................................................................................... ..................................................................................................................................... .................................................................................................................................... Task 1. Retain Consultant to Assist $2,500 $0 with DMS Development ..................................................................................................................................................................................................................................................... ............................................................................................................................... .................................................................................................................................... ................................................................................................................................... Task 2. Identify Information $2,500 $0 Requirements for DMS ..................................................................................................................................................................................................................................................... ............................................................................................................................... .................................................................................................................................... ................................................................................................................................... Task 3. Investigate and Select an $5,000 $0 Appropriate DMS ..................................................................................................................................................................................................................................................... ............................................................................................................................... .................................................................................................................................... ................................................................................................................................... Task 4. Procure/Design and $457,500 $0 Customize the Selected DMS ..................................................................................................................................................................................................................................................... ............................................................................................................................... .................................................................................................................................... ................................................................................................................................... Task 5. Develop Data Protocols and $2,500 $0 Templates ..................................................................................................................................................................................................................................................... ............................................................................................................................... .................................................................................................................................... ................................................................................................................................... Task 6. Develop DMS User's Manual $2,500 $0 and Train GSA Staff ..................................................................................................................................................................................................................................................... ............................................................................................................................... .................................................................................................................................... ................................................................................................................................... Task 7. Review and Assessment of $0 $0 DMS ..................................................................................................................................................................................................................................................... ............................................................................................................................... ..................................................................................................................................... .................................................................................................................................... (d) Monitoring /Assessment ..................................................................................................................................................................................................................................................... $0 ............................................................................................................................... $0 ..................................................................................................................................... .................................................................................................................................... Grand Total Sum rows (a) through (d) for each $500,000 $0 $500,000 column ...................................................................................................................................................................................................................................................... ............................................................................................................................... ............................................................................................................ ..................................................................................... 1 Only these Budget Categories shall be used. Tasks can be added for more detail. 2 List sources of funding: Assumes DAC waiver for local cost share Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Att. 4-�� Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 4 — Budget The Kern County Subbasin Groundwater Sustainability Plan Support — Phase II proposal includes one project, which will benefit the entire Kern County Subbasin. Since only one component (or project) is proposed, Grant Administration has been included with the budget for the project, and the required budget templates 5A and 6A, intended for proposals that do not include multiple components, have been completed and presented above. This section summarizes costs included in each budget category and describes how the values included in Table 6A, Proposal Detailed Budget, for the Kern County Subbasin Groundwater Sustainability Plan Support — Phase II were developed. Budget Category (a): Grant Administration The Direct Project Administration provided by KRGSA on behalf of all the GSAs in the Kern County Subbasin will support this project and will also oversee the implementation of overall grant funding such as executing a grant agreement with DWR, conducting reporting and invoicing, and ensuring that grant requirements are met. These tasks ensure that the project will be completed, DWR receives Quarterly and Final Project Completion Reports, invoicing and record-keeping are current, and other grant administrative functions are completed. The Grant Administration budget was developed in order to keep these administration costs to within 5% of the award amount and maximize the grant funding utilized for the Subbasin Data Management System Development project, which is the critical GSP planning need in the Subbasin at this time. The total Budget Category (a) costs are therefore estimated at $25,000 — 5% of the total grant amount of $500,000. The total of $25,000 for this Budget Category (a) includes $4,000 for Grant Administration, $9,000 for Invoicing, and $12,000 for Report Preparation. The Administration budget is well within DWR's guidance to keep costs to within 10% of the Grant Request. The Grant Administration budget is considered reasonable as it does not exceed 5% of the overall project budget and is consistent with DWR's guidance. This cost estimate is considered standard and was developed based on KRGSA, KGA, and the other GSA experience managing IRWM and SGMA grants in recent years. The Grant Administration work will include effort from KRGSA's legal and accounting functions, as well as project managers as well as the GSAs in the Kern subbasin who will coordinate with KRGSA, assuring the timely completion of reporting tasks detailed in the Work Plan. A consultant may be added to assist the project team. Grant Administration effort may exceed amounts included in this budget; additional effort and costs required to complete the Grant Administration task will constitute Other Cost Share. It is anticipated that a full DA waiver for Local Cost Share will be received for this Proposal. In anticipation of the full waiver, no Local Cost Share has been included with the Proposal Budget. Please see Attachment 6 — SDAC, DAC, EDA for documentation and narrative describing Disadvantaged Areas within the Kern County Subbasin project area. Budget Category (b): Stakeholder Engagement / Outreach The total cost of Stakeholder Engagement / Outreach, Budget Category (b), is $2,500, included as Grant Request. This cost estimate was developed based on KRGSA, KGA, and other the GSA experience in conducting Stakeholder Engagement and Outreach work in recent years and through development of Groundwater Sustainability Plans for the Subbasin. These costs represent a minimal level of Stakeholder Engagement associated specifically with this proposed grant -funded project, in order that the bulk of available grant funding can be allocated to implementation of the Subbasin Data Management System Development project, which is the critical GSP planning need in the Subbasin at this time. ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 4-3 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 4 — Budget If the actual level of effort needs to exceed amounts included in this budget to achieve project objectives, the additional costs required to complete the task will be paid by the GSAs. It is anticipated that a full DA waiver for Local Cost Share will be received for this Proposal. In anticipation of the full waiver, no Local Cost Share has been included with the Proposal Budget. Please see Attachment 6 — SDAC, DAC, EDA for documentation and narrative describing Disadvantaged Areas within the Kern County Subbasin project area. Budget Category (c): GSP Development: Subbasin DMS Scoping and Development The total cost of GSP Development: Subbasin DMS Scoping and Development, Budget Category (c), is $472,500, included as Grant Request. This total Budget Category (c) cost of $472,500 constitutes the bulk of requested grant funding, in order to launch the scoping and development of the Subbasin's critical GSP planning effort, to develop a DMS for the Subbasin. This $472,500 Category (c) grant request is spread the anticipated seven tasks that will result in a fully functioning DMS. $2,500 is budgeted for Task 1, which includes developing a Request for Proposals and ultimately contracting with a Data Management System professional consultant to lead the DMS development process. Task 2 is budgeted at $2,500 and includes identification of the information requirements for the DMS. Allocated for Task 3, to investigate and ultimately select an appropriate DMS for the Subbasin is $5,000. Task 4 constitutes the bulk of the grant request in the amount of $457,500. Task 4, Procure, Design, and Customize the Selected DMS, is the focus of the Kern County Subbasin to accomplish the coordination of monitoring, management, and annual reporting going forward. Tasks 5 and 6 are supportive tasks to complete the development of a basin -wide coordinated DMS. Each of these tasks is allocated $2,500. Task 7, Review and Assessment of DMS, would be funded by the GSAs as part of their ongoing GSP process. Budget Category (d): Monitoring /Assessment This project is a planning effort and does not involve on -the -ground monitoring activities. As described in Attachment 3, Work Plan, the intent is to make as much progress as possible toward development of a fully functioning DMS. The GSAs have committed to continue ongoing collaborative efforts towards accomplishing Subbasin-wide tasks to support GSP planning and implementation. The GSAs will support each task in the workplan as needed with the necessary level of effort to meet the project goals. This cost estimate was developed based on KRGSA, KGA, and other GSA experience in contracting with professional consultants in recent years and through development of Groundwater Sustainability Plans for the Subbasin, as well as with input from consultants and industry professionals knowledgeable about DMS development and the data collection needs of the Subbasin's GSAs. As described in Attachment 3, Work Plan, it is anticipated that the cost to fully develop an operational DMS for the Subbasin will far exceed grant funding available under this Round 3 Planning Grant opportunity. Additional resources beyond the funding available through this grant will be provided by Subbasin GSAs as necessary to complete the project and achieve a workable DMS that meets Subbasin needs. The Subbasin GSAs will coordinate to fund any additional project costs and have a demonstrated track record of doing so on many other GSP-related projects. It is anticipated that a full DA waiver for Local Cost Share will be received for this Proposal. In anticipation of the full waiver, no Local Cost Share has been included with the Proposal Budget. Please see Attachment 6 — SDAC, DAC, EDA for documentation and narrative describing Disadvantaged Areas within the Kern County Subbasin project area. 1 1 ffiplilll LOW! , 11 M Kern County Subbasin Groundwater Sustainability Plan Support - Phase II 20.1 9 Grant App� ihAMIM11.4", Schedule Schedule Description Environmental Compliance and Permitting Tables Table 7A.Grant Proposal Schedule (No Components) Figures None Appendices None .3 .3 .3 Attachment 5 — Schedule Table 7A — Grant Proposal Schedule (No Components) Grant Proposal Title: Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Applicant: Kern River Groundwater Sustainability Agency (KRGSA) Categories Start Date (Earliest Start Date) End Date (Latest End Date) (a) Grant Administration 3/1/2020 7/31/2022 Task 1. Grant Management 3/1/2020 7/31/2022 Task 2. Invoicing 6/1/2020 7/31/2022 Task 3. Report Preparation 6/1/2020 7/31/2022 (b) Stakeholder Engagement / Outreach 4/1/2020 4/30/2022 Task 1. Technical Meetings 4/1/2020 4/30/2022 (c) GSP Development: Subbasin DMS Scoping and Development 2/1/2020 4/30/2022 Task 1. Retain Consultant to Assist with DMS Development 2/1/2020 6/30/2020 Task 2. Identify Information Requirements for DMS 2/1/2020 9/30/2020 Task 3. Investigate and Select an Appropriate DMS 6/30/2020 4/30/2021 Task 4. Procure/Design and Customize the Selected DMS 5/1/2021 4/30/2022 Task 5. Develop Data Protocols and Templates 5/1/2020 4/30/2022 Task 6. Develop DMS User's Manual and Train GSA Staff 10/1/2021 4/30/2022 Task 7. Review and Assessment of DMS 7/1/2021 4/3/2022 (d) Monitoring /Assessment N/A N/A Fill ig i ll! oil ill Attachment 5 — Schedule R The Kern County Subbasin Groundwater Sustainability Plan Support — Phase II proposal includes one project, which provides benefits for the entire Kern County Subbasin. Since there are no additional components included with this proposal, Grant Administration has been included with the Work Plan, Budget, and Schedule for the single project, and the required Schedule Table 7A, intended for proposals that do not include multiple components, has been completed and presented above. This section summarizes the schedule established (and presented in Table 7A) for the Kern County Subbasin Groundwater Sustainability Plan Support — Phase II proposal. The tasks listed in the schedules align with the same tasks identified and described in the Work Plan (Attachment 3) and Budget (Attachment 4), and use March 2020 as the assumed award date of the grant and launch of Grant Administration. Project implementation will likely begin prior to notification of award, potentially by February 2020. All project implementation work will be complete by the end of April 2022. The schedule for Grant Administration extends through July 2022 when all final reports and invoicing will be complete for the grant. The anticipated order of activities for completion of the project is as follows Category (c), GSP Development: Subbasin DMS Scoping and Development, will begin immediately upon grant award with the process of hiring a DMS consultant (Task 1). The selected consultant will assist the GSAs with identifying information requirements for the DMS (Task 2). Task 2 begins concurrently with Task 1 to allow the identification of requirements to inform the RFP process in Task 1; the task continues to allow communication and consultation with the DMS Consultant on system requirements. After working collaboratively with the GSAs in Task 2, the DMS consultant will then investigate and recommend appropriate DMS options for selection by the GSAs' Boards (Task 3). KRGSA and KGA, on behalf of all the Subbasin GSAs, will procure the selected DMS and the consultant will customize it as needed (Task 4). This process is expected to continue through April 2022 with ongoing adjustments and customization. Task 4 is expected to be partially funded by the GSAs when grant funds are expended for this task. Concurrently with this process, the consultant and GSAs will develop protocols and data templates (Task 5), and will train GSA staff to use and populate the DMS following completion of these tasks (Task 6). Task 7 commences in 2021 when the DMS development is underway and continues throughout the grant period, allowing additional modifications to the DMS as the project is implemented. Category (b), Stakeholder Engagement/Outreach, will involve coordination of technical meetings with stakeholders and DACs throughout the process of DMS scoping and development. Category (a), Grant Administration, will involve management of the grant, invoicing, and report preparation before, during, and after completion of the grant activities. Category (d), Monitoring / Assessment, does not apply to this project as it is a planning effort and does not involve on -the -ground monitoring activities. The Kern County Subbasin Groundwater Sustainability Plan Support — Phase II proposal includes one project, which will benefit the entire Kern County Subbasin. This project, Subbasin Data Management System Development, is effectively a planning effort; no construction will take place under this project. This grant proposal covers the preparation of Groundwater Sustainability Plans (GSPs) within the Kern County Subbasin. Under Water Code § 10728.6, CEQA does not apply to the preparation and adoption of Groundwater Sustainability Plans. Therefore, this Proposal is exempt from California Environmental Quality Act (CEQA) requirements. The proposed Subbasin Data Management System Development project will initiate the key steps to develop and build a Subbasin DMS, which will ultimately support Subbasin GSAs by providing (1) improved coordination of groundwater monitoring and management actions and (2) the ability to meet the reporting and implementation Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 5-2 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 5 ® Schedule requirements of their respective GSPs and DWR. The development of a DMS does not meet the definition of a "Project" under CEQA, as it will not create any foreseeable impact on or alter the physical landscape in any shape, manner, or form. Under CEQA, a "Project" refers to an action that has the potential to result in a physical change to the environment (Pub. Res. Code § 21065). Therefore, CEQA does not apply to this project. Development of a Subbasin Data Management System will not require any permits or regulatory agency approvals. Therefore, a process and schedule for securing permits and approvals is not necessary, and has not been included in this Proposal. Kern County Subbasin Groundwater Sustainability Plan Support - Phase II 20.1 9 Grant App� omlVVl uuuuuu ihAMIM11.4", Introduction Location ofOACawithin the Proposal Area DAC Support and Outreach 3 Figures Figure G-1.Disadvantaged Communities inthe Kern County Subboain................................................ 3 Appendices Appendix C.Joint Letter ofSupport ll�llWl1MV.;EWdWWl 1 11 ill; 1111111, il;' 11 5 Attachment 6 — SDAC-DAC-EDA a According to Water Code § 79505.5, a disadvantaged community (DAC) is "a community with an annual median household income that is less than 80 percent of the Statewide annual median household income." These communities, widely dispersed throughout California and the Kern County Subbasin, are especially sensitive to groundwater overdraft and decreases in local water quality such as that in the Kern County Subbasin. Attachment 6 — SDAC-DAC-EDA addresses the existence of DAC areas located within the Kern County Subbasin, and includes a map showing the Proposal benefit area and the location of DACs. Location of III ii4II iii iin the 111Pirollposal Airea The Kern County Subbasin (Proposal benefit area) is located in the Southern San Joaquin Valley, is a critically overdrafted, high priority groundwater basin and is home to numerous DAC Communities. The GSAs in the Kern County Subbasin identified DACs throughout the Subbasin by using the DWR's DAC Mapping Tool and ArcGIS Map Package. Geographically, the Kern County Subbasin is comprised of 79.5 percent Disadvantaged Communities. The GSAs in the Subbasin have accurately discerned and mapped where DAC communities exist within the Subbasin. Figure 6-1, below, illustrates the Proposal benefit area and the location of DACs within the Kern County Subbasin. The DAC Mapping tool and ArcGIS Map Package provide US Census data identifying DACs by "Block Groups", "Tracts", and "Places." The specific dataset used in the tool is the US Census American Community Survey (ACS) 5 -Year Data: 2012 — 2016 (with an MHI of $63,783 and hence calculated DAC threshold of $51,026). According to the US Census Bureau: Block Groups are statistical divisions of census tracts, generally defined to contain between 600 and 3,000 people. Census Tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity. Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of 4,000 people. Places can be defined as either incorporated or designated. Incorporated Places usually consist of a city, town, village, or borough, but can have other legal descriptions or boundaries. Designated Places usually coincide with visible features or the boundary of an adjacent incorporated place or another legal entity boundary, have no legal status, nor do these places have officials elected to serve traditional municipal functions. For more information on the DAC Mapping Tool or ArcGIS Mapping Package, please visit: http://www.water.ca.gov/irwm/grants/resources dac.cfm. All communities qualifying as Disadvantaged Communities within the Kern County Subbasin (block groups, census tracts, and places) will benefit as a result of the Subbasin Data Management System Development project included in this Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Proposal. Attachment 6—GDAC-DAC-EDA Figure 6-1 ahovva the location and extent ofall Disadvantaged Communities within the Kern County Subboain. These Disadvantaged Areas make up 79.5 percent of the Subboain and Project area. All communities qualifying as DACs within the Kern County Subbasin will benefit as a result of the proposed project. Figure 6-1. Disadvantaged Communities in the Kern County Subbasin Kern County Subbasin Groundwater Sustainability Plan Support — Phase 11 Att. 6-*� Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 6 — SDAC-DAC-EDA The Kern County Subbasin Groundwater Sustainability Plan Support — Phase II grant application includes outreach, engagement, and technical support to benefit DACs throughout the entire Subbasin. All the GSAs in the Subbasin conduct regular Board meetings on a monthly basis to support development of their respective GSPs. All the GSAs in the Subbasin have undertaken coordination activities with the DACs in the Subbasin. Several of the DACs are represented by board members on the GSAs in the Subbasin. The following DAC communities within the Kern County Subbasin are identified as cities or Census Designated Places (CDPs) in DWR's DAC database. All communities qualifying as DACs within the Kern County Subbasin will benefit as a result of the DMS project. Arvin Buttonwillow CDP Delano Edmundson Acres CDP Ford City CDP Fuller Acres CDP Greenfield CDP Lamont CDP Lost Hills CDP Maricopa McFarland McKittrick CDP Mettler CDP Mexican Colony CDP Oildale CDP Richgrove CDP Shafter Smith Corner CDP South Taft CDP Taft Taft Heights CDP Tupman CDP Valley Acres CDP Wasco Weedpatch CDP As part of the DMS project, the GSAs in the Subbasin would conduct outreach to all the DACs that will be required to report to DWR under SGMA. GSA staff would work with local DACs within their boundaries, relying on the existing relationships they have established and maintained during the GSP development process. A joint letter of support for the Kern County Subbasin Groundwater Sustainability Plan Support — Phase II 2019 Grant Application endorsed by the GSAs and stakeholders that would benefit from the project is provided in Appendix C. As noted previously, outreach to DACs will continue to occur throughout development of the DMS. With grant funding, the DMS project will be better situated to conduct outreach to, engage, and include DACs and DAC concerns so that DACs will benefit from easier access to groundwater sustainability information. Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 6-3 Sustainable Groundwater Management Grant Program — Round 3 Planning Grants Attachment 6 ® SDAC-DAC-EISA Appendix C Joint Letter of Support Kern County Subbasin Groundwater Sustainability Plan Support — Phase II Att. 6-4 Sustainable Groundwater Management Grant Program ® Round 3 Planning Grants ii //%%%%%// SWIDONQ Shafter-Wasco Irrigation District November 15, 2019 Mr. Zaffar Eusuff, Program Manager Ms. Kelley List, Project Manager Financial Assistance Branch Sustainable Groundwater Management California Department of Water Resources Program, Round 3 Planning Grant PO Box 942836 California Department of Water Resources Sacramento, CA 94326-0001 901 P Street Sacramento, CA 94236 Subject: Letter of Support for Kern River Groundwater Sustainability Agency Leading the Kern County Subbasin Proposition 1 Round 3/Proposition 68 Planning Grant Application Dear Mr. Eusuff and Ms. List: The undersigned groups are submitting this letter in support of the Sustainable Groundwater Management — Proposition 1 Round 3/Proposition 68 Planning Grant Application submitted by the Kern River Groundwater Sustainability Agency (KRGSA), in coordination with the all the GSAs in the Kern County Subbasin. The demographics of the Subbasin service area establish it as a geographic area of largely disadvantaged communities in need of assistance and support. As representatives and water providers of Disadvantaged Communities (DACs) in the Kern County Subbasin, we jointly support this effort to achieve sustainable groundwater planning in the Kern County Subbasin. Since the enactment of the Sustainable Groundwater Management Act (SGMA), the Kern County Subbasin GSAs have worked together to achieve sustainable groundwater management. Through a collaborative process involving more than a dozen member agencies and landowner representatives, Prop 1 Round 3/Prop 68 Letter of Support November 15, 2019 Page 2 of 3 GSAs in the Kern County Subbasin have coordinated on numerous GSP activities, including the following milestones: • Produced a Subbasin-wide Sustainability Goal for achieving and maintaining sustainable groundwater management; • Developed Sustainable Management Criteria to apply to the entire Subbasin, while allowing flexibility for local GSA control; • Coordinated on a Subbasin-wide monitoring network and agreed on monitoring protocols for coordinated monitoring and groundwater evaluations; • Shared costs and tasks for the development of a Subbasin-wide integrated surface water— groundwater model to analyze Subbasin water budgets and to support an evaluation of projects and management actions; • Held two widely attended SGMA Open Houses to allow stakeholders to discuss the GSP process and requirements directly with GSA managers; • Hosted numerous community, Board, public outreach, and stakeholder meetings, including many that were focused on the disadvantaged communities in the Subbasin; and • Organized numerous committees to guide policy decisions, coordinate communication and outreach activities, and provide a forum for GSA managers to discuss and coordinate GSP elements. While individual GSAs and their member agencies have developed separate Groundwater Sustainability Plans (GSPs) to comply with the SGMA regulations, the Kern GSAs recognized the need to develop a centralized, Subbasin-wide data management system (DMS) to support monitoring, evaluation, reporting, management, and, importantly, GSP implementation. We recognize that compilation of our individual systems will require significant manipulation and re -structuring to create a centralized relational DMS that is populated with consistent data sets across the Subbasin. For this reason, the GSAs of the Kern County Subbasin have agreed to coordinate to submit a Proposition 1 Round 3/Proposition 68 Planning Grant Application to take the first key steps in this process. Participating in the DWR grant funding program through continued Subbasin-wide Groundwater Sustainability Planning efforts is a good and essential step forward for DAC communities in the Kern County Subbasin. We are pleased and supportive to see the inclusion and participation of Disadvantaged Communities and related stakeholders in the Kern County Subbasin's Groundwater Sustainability Planning efforts, and we believe that funding from this Grant Application will contribute to basin -wide groundwater planning efforts and benefit our community members. By funding the KRGSA's grant application in the full allotment of $500,000, DWR will ensure that all that disadvantaged communities in the Kern County Subbasin will benefit from improved groundwater management and sustainability. The grant funds will be instrumental to the DACs in the Kern County Subbasin by providing the mechanism for meeting their reporting requirements under SGMA and also providing the ability to review each other's data in the Subbasin. We hope that DWR will fully fund the Kern County Subbasin Round 3 Planning Grant Application, and we look forward to seeing the benefits of this program within all of our service areas in the near future. Sincerely, Art Chianello Water Resources Manager City of Bakersfield David Beard Manager Improvement District No. 4 Kern County Water Agency Holly Melton Water Resources Manager Kern County Water Agency L. Mark Mulkay General Manager Kern Delta Water District Phil Nixon General Manager Westside District Water Authority Jeof Wyrick President Henry Miller Water District Dennis Atkinson President of the Board Tejon-Castac Water District James L. Nickel President Olcese Water District Prop 1 Round 3/Prop 68 Letter of Support November 15, 2019 Page 3 of 3 Steven C. Dalke General Manager Kern -Tulare Water District Jason Gianquinto David Ansolabehere General Manager General Manager Semitropic Water Storage District Cawelo Water District Richard A. Diamond General Manager North Kern Water Storage District Jonathan Parker General Manager Kern Water Bank Authority Raul Barraza, Jr. General Manager Arvin Community Service District Chad Hathaway Board President Eastside Water Management Area Sheridan Nicholas, P.E. Engineer -Manager Wheeler Ridge-Maricopa Water Storage District Tim Ashlock Manager Buena Vista GSA Dana Munn General Manager Shafter-Wasco Irrigation District Eric Averett General Manager Rosedale -Rio Bravo Water Storage District Jeevan Muhar, P.E. Engineer -Manager Arvin -Edison Water Storage District Greg A. Hammett General Manager West Kern Water District K E R N GROUNDWATER AUTHORITY November 20, 2019 To: Kern River GSA Buena Vista WSD GSA Henry Miller WD GSA Olcese WD GSA Re: Reimbursement Agreement for Annual Reporting of the Kern Sub -basin The Kern Groundwater Authority (KGA), the Kern River Groundwater Sustainability Agency (KRGSA), the Buena Vista WSD Groundwater Sustainability Agency (BVGSA), the Henry Miller WD Groundwater Sustainability Agency (HMGSA), and the Olcese WD Groundwater Sustainability Agency (OGSA) wish to participate in the Reimbursement agreement for the Kern County Subbasin — 2020 Annual Reporting Requirement under SGMA. On behalf of the Subbasin, the KGA has approved a contract with TODD Groundwater (Attachment 1) which includes a scope of work with the following tasks: 1) Prepare Data Requests and Templates ($10,554) 2) Prepare Groundwater Elevation Contour Maps ($26,749) 3) Review and Compile Hydrographs ($9,458) 4) Compile and Present Water Supply Data ($19,373) 5) Analyze Change in Groundwater in Storage ($32,518) 6) Document Progress in GSP Implementation ($10,639) 7) Prepare Drafts/Final Annual Report and Submit to DWR ($32,322) 8) Communication and Meetings ($33,216) for a total amount of the contract of $174,830. Also, on behalf of the Subbasin, the KGA has approved a contract with ITRC (Attachment 2) which includes a scope of work with the following tasks: 1) Provide monthly and annual ITRC-METRIC actual crop evapotranspiration (ETc) for the Kern Subbasin for 2017-2019. 2) Data will be extracted for each GSA within the subbasin and each irrigated field in each GSA monthly for 2017-2019 3) Data will be provided tabularly and monthly ETc images will be provided in GIS format 4) Short report discussing the general process and overall results will be provided for a total amount of the contact of $16,000 All parties agree to cost share this effort according to following terms and conditions: 1. The participant signatories below will pay their share of the proposed budget of $190,830 as shown on Exhibit 1. 2. All payments from shall be due 45 days after the receipt of invoice from the KGA If the above terms and conditions are acceptable, please sign and date this letter and return them to the KGA. 1800 30th Street, Suite 280, Bakersfield, CA 93301 • Tel: (661) 616-5900 • Fax: (661) 616-5890 •_ww_ ww� Illii°miiiw�.iii�iiii Page 2 of 2 Sincerely, KGA Vice Chair Accepted: Kern River GSA By:- - Title:_,, Title: Date: Buena Vista WSD GSA Title: Date: Henry Miller WD GSA Olcese WD GSA By: ....�.�...............--e..m..�W....................� By:- Title: Title: Date: -Date: Rage 2 of 2 Sincerely, KGA Vice Chair Accepted: Kern River GSA Title: Date:_ Henry Miller WD GSA Y' Title: Buena Vista WSD GSA By:__ Title: Date: Olcese WD GSA By:__ _ — Title: Date: _ Date:_ Sincerely, KGA Vice Chair Henry Wer WD GSA By: Title: Date: Page 2 of 2 Duna Vista WSD GSA Bye , w Title., Page 2 of 2 Sincerely, KGA Vice Chair Accepted: Kern River GSA By: Title: Date: Heavy Miller WD GSA Oleese WD GSA By �� ��� By: Title:-- SI � .�f...�_� "...� Title �c Date: .... �..�._ Date: Sincerely, KGA Vioe Chair Accepted. Kern River GSA By -,_- Title: --- Date: Buena Vista WSD GSA Title: Date: Page U2 Henry Miller WD GSA Olcase WD GRSA By. Title. James L. Nickel, President Date. ._....awn 9-1' i A a4 FIS GROUNDWATER November 19, 2019 To: Kern Groundwater Authority (KGA) Patty Poire, Kern County Subbasin GSP Plan Manager Cc: Kern River Groundwater Sustainability Agency (KRGSA) Art Chianello, David Beard, and Mark Mulkay, KRGSA Plan Managers From: Phyllis Stanin, Vice President Re: Proposal — Preparation of GSP Annual Report for WY 2019 Kern County Subbasin Groundwater Sustainability Plans (GSP) The Kern Groundwater Authority (KGA) is leading Subbasin-wide coordination efforts for development of Groundwater Sustainability Plans (GSP) including annual reporting on GSP implementation. Subbasin GSAs are cooperating in preparation of this first GSP Annual Report covering Water Year (WY) 2019 for the Kern County Subbasin. Todd Groundwater has been asked to prepare a proposal to prepare and submit the 2019 Annual Report. The Kern County Subbasin is required to submit adopted GSPs covering the entire Subbasin to the Department of Water Resources (DWR) by January 31, 2020. Annual Reports are due to DWR "by April 1 of each year following the adoption of the Plan." (§356.2). Accordingly, the 2019 Annual Report is due to DWR by April 1, 2020, only two months after submittal of the GSPs. 1 APPROACH Collectively, the extensive analyses and hydrogeologic products available in Subbasin GSPs provide a firm foundation for the 2019 Annual Report. Monitoring sites have already been identified, data are being collected, and water budget results are readily available from the historical and current study periods. We envision working cooperatively with Subbasin agencies and their consultants to compile and incorporate information that either is currently available or is being collected as part of GSP implementation. Preparation of the 2019 Annual Report will follow regulatory guidance. Regulatory requirements for the GSP Annual Reports are provided in Article 7 of the GSP regulations (§ 356). Reporting standards for Annual Report data are provided in Article 3 (§352.4) and reporting provisions can be found in Article 4 (§353.4). 2490 Mariner Square Loop, Suite 215 1 Alameda, CA 945011510 747 6920 1 toddgroundwater.com This first Annual Report will require extra analysis of the Subbasin water budget to "bridge" the time period between the end of the Subbasin current Study Period (WY 2015) and the reporting period of WY 2019. Although GSP Annual Reports are designed to describe conditions from the preceding water year only (i.e., WY 2019), regulations also require water budget results (i.e., change in groundwater in storage) to use "historical data to the greatest extent available, including from January 1, 2015 to the current reporting year." (§356.2 (b)(1)(B) and §356.2 (b)(5)(13)). The bridge analysis, combined with the GSP current Study Period, will cover the requirement of "January 1, 2015 to the current reporting year." GSP analyses from the Subbasin-wide historical and current Study Periods —covering WY 1995 through WY 2015 — can be used to satisfy the requirement of "historical data to the greatest extent available." Regulations only appear to require historical data for hydrographs and change in groundwater in storage. Additional data, including reporting of groundwater extractions, surface water, and total water use by sectors, appear to only refer to the preceding year and not the "bridge" period. It is anticipated that we will require clarification and interaction with DWR on several issues for the 2019 Annual Report. We recommend working directly with the Subbasin Plan Manager (Patty Poire) on any communications with DWR to ensure that the 2019 Annual Report will comply with regulations. In coordination with the Plan Manager, we will confirm with DWR the specific time period for which these other data sets must cover, seek DWR acceptance of recommended methods to incorporate into the 2019 Annual Report, and work with agencies to comply with DWR requirements. In our role as the Watermaster Engineer for the Antelope Valley Watermaster, we have been submitting SGMA-compliant annual reports to DWR for several years. Although requirements for adjudicated basins are significantly different from critically over -drafted basins, many of the requested data sets and attachments are the same. This provides us with some insight as to how GSP annual reporting might be managed by DWR; some of these insights are incorporated into this scope of services, as relevant. 2 SCOPE OF SERVICES In order for Subbasin agencies to begin planning for the required components of the 2019 Annual Report, an example template of the report has been prepared and provided with this proposal as Attachment 1. The template has been annotated with a mix of GSP requirements, assumptions for report development, and example text. Annotations also include assumptions and details of our proposed scope of services to allow agencies to better visualize how Subbasin data will be compiled, analyzed, and used in the Annual Report. Accordingly, Attachment 1 serves as a companion document to this scope of services and is incorporated into the scope by reference. Tasks associated with the proposed scope of services are summarized below. Also, please refer to Attachment 1 for GSP requirements and additional assumptions and details for including the information in the 2019 Annual Report. Proposal - 2019 Annual Report, Kern County Subbasin 2 TODD GROUNDWATER R 911 cc w a 3 0 z D 0 cc 0 0 v 0 Task 1: Prepare Data Requests and Templates The first step in this process involves development of a data request memorandum by Todd Groundwater, which will provide a list of data requirements from all Subbasin agencies and include data templates to facilitate data compilation and presentation. Todd Groundwater assumes introducing the data request memorandum and templates at a KGA-coordinated Subbasin Managers' Meeting, tentatively scheduled for November 8, 2019 (included in Task 8). Task 2: Prepare Groundwater Elevation Contour Maps We will obtain water level data from individual agencies for Spring and Fall 2019 measurements. We assume that data will be provided for the GSP water level monitoring sites but would be pleased to incorporate more data, if available. We will also work with KCWA, who leads an extensive water level monitoring program and may be able to provide additional data to improve map accuracy. Given the need for developing separate maps for each Principal Aquifer, the KCWA supplemental data from wells without construction information may not be included. It is our understanding that GSAs have identified two primary Principal Aquifers that can be mapped in the Subbasin. Groundwater elevation contour maps will be prepared for each Principal Aquifer for Spring and Fall 2019 (4 total maps). It is also our understanding that two deeper Principal Aquifers, the Olcese Formation and the Santa Margarita Formation, have been identified in limited areas in the eastern Subbasin. If sufficient data are available for contouring groundwater elevations in these aquifers, we can also include them in the Annual Report. We assume that all groundwater elevations available for contouring will be provided by others (except for KRGSA data, which we will produce separately from this proposal). We assume that groundwater level data will be provided in electronic (Excel) spreadsheets and include, at a minimum, well identifiers (matching hydrographs), date, X/y or Lat/Long (with datum), depth to water, reference point elevation, water level elevations, and associated Principal Aquifer. GIS shapefiles are also appreciated, if available. Data will be contoured initially using commercially -available software and then iteratively hand -modified for more accurate representations of groundwater elevations across the Subbasin. We will work directly with individual agencies if data issues are identified or if we require further clarification. If agencies have already developed groundwater elevation contour maps and wish to use the current contours, we can coordinate with the agency to obtain electronic maps or discuss other options. Several drafts of water level contour maps will be developed for review by individual agencies, as needed. Task 3: Review and Compile Hydrographs Groundwater elevation hydrographs will be compiled from Subbasin agencies for inclusion in the Annual Report. Hydrographs should be formatted to adhere with the Data and Proposal - 2019 Annual Report, Kern County Subbasin 3 TODD GROUNDWATER Reporting Standards as prescribed in §352.4(e) of the GSP regulations and summarized in Section 2.2 of Attachment 1. In brief, each hydrograph should include a unique site identification number, ground surface elevation, and use the same scale to the greatest extent practical. We will work with agencies to ensure relatively similar hydrograph formats including the same horizontal scale of October 1, 1994 through September 30, 2019 (WY 1995 — WY 2019), as needed; similar formats may facilitate DWR review. Closely -spaced hydrographs should incorporate the same vertical scales to the extent practicable in adherence with GSP regulations. Hydrographs may also include annotations to allow for easy well identification and understanding by DWR reviewers. Overall trends and fluctuations as shown by the hydrographs for WY 2016 through WY 2019 will be described briefly in the context of water year type and the groundwater elevation contour maps. A map showing the location of submitted hydrographs will be developed and PDF files of each hydrograph will be included in an appendix of the Annual Report. Task 4: Compile and Present Water Supply Data Working with the individual agencies, Todd Groundwater will compile water supply data for the following categories: • Groundwater Extractions • Surface Water Supply • Total Water Use. For groundwater extractions, total extraction amounts for the preceding year are required, along with a map showing locations and volumes of production. Although data can be combined to report a total extraction from the Subbasin, some local data will be needed to develop groundwater extraction maps. First, we recommend development of a map showing general locations of active wells by type (agricultural, urban, banking recovery, etc.). This will illustrate concentrations of the various extraction types across the Subbasin. To meet the requirement of volumes, we recommend development of various "bubble" maps that illustrate relative volumes for various areas using circles of increasing diameter. We will recommend appropriate illustrations after a review of the available extraction data. We will emphasize to DWR that management actions are being implemented for estimating groundwater extractions, but those actions were not in place in WY 2019. Therefore, the data will represent estimates, and can potentially be based on extractions associated with recent time periods as provided in the C2VSimFG-Kern model; extractions could be adjusted for current changes in local land use or known changes in extractions, as needed. In addition to the map, groundwater extractions must be tabulated by water use sector (generally Urban, Agricultural, Managed Recharge, and Other - see Section 3 of Attachment 1). Methods and accuracy of measurements must also be included. Proposal - 2019 Annual Report, Kern County Subbasin 4 TODD GROUNDWATER Data for total surface water supply (Section 4 in Attachment 1) are more likely to be available, but volumes are also required to be tabulated by water use source type. This categorization may be complicated for parties that frequently use water exchanges as part of their ongoing operations. We are assuming that surface water supply data will be provided to us by others (except for the KRGSA agencies), similar to the process conducted for the C2VSimFG-Kern model development. Groundwater extractions and surface water supply will be combined for Total Water Use in Section 5 of the 2019 Annual Report. As indicated in Attachment 1, total water use must be categorized by both water use sector and water source type. As noted in Sections 3, 4, and 5 of Attachment 1, DWR categories of water use sectors, methods/accuracy of measurement, and water use sources have been pulled from the DWR website used for SGMA reporting in adjudicated basins. Given the similarity of the SGMA reporting website organization and the requirements in the GSP regulations of Article 7, it seems reasonable to conclude that this organization will be maintained for reporting data in the GSP annual reports. Data requests and templates will be developed for these water use sectors, measurement methods, accuracy of measurements, and water source types for inclusion, as available (Attachment 1). DWR will recognize that previous data were not likely collected in a manner to differentiate among these categories and some categorization of data will not be available for this first Annual Report. We will confirm with DWR that some data categorization will be unavailable and also that these data only need to be reported for WY 2019; GSP regulations do not indicate that these data need to be provided on an historical basis. Finally, much of the requested data in this task overlaps with requirements for the updates of Agricultural Water Management Plans (AWMP) and Urban Water Management Plans (UWMPs) for 2020, due in 2021. We will note in the Annual Report that many of these requested data sets are currently being developed/revised in compliance with other planning processes, and data in this Annual Report will be superseded with improved data sets in future annual reports. Task 5: Analyze Change in Groundwater in Storage GSP regulations (§ 356.2 (b)(5)(13)) for the Annual Report require both a map and graph of changes in groundwater in storage be developed over the entire groundwater basin that meet the following requirements: Graphs depicting the annual and cumulative change in groundwater in storage "based on historical data to the greatest extent available, including from January 1, 2015 to the current reporting year," and "Change in groundwater in storage maps for each principal aquifer in the basin". These requirements presents numerous technical challenges for the Kern County Subbasin (see also the discussion in Section 6.1 of Attachment 1). Proposal - 2019 Annual Report, Kern County Subbasin 5 TODD GROUNDWATER Based our November 8, 2019, discussion at the Kern County Manager's Meeting, Todd Groundwater will develop change in groundwater in storage maps and graphs for the entire Kern County Subbasin using the C2VSimFG-Kern model. By doing so, we continue to update and use the primary DWR modeling tool with our local Kern County updates for evaluating basin conditions. For this task, we will use a methodology consistent with that used to develop change in groundwater storage graphs for the C2VSimFG-Kern Model Results technical memorandum, which is included in the KGA Umbrella and KRGSA GSPs. Using this approach, we will maintain consistency of method in presenting the basinwide change in groundwater in storage. For this task, we will request WY2016 through WY2019 data from each district for measured managed water supply and demand data following the methodology used to update the C2VSimFG-Kern model for the Kern County historical water budgets. To meet this Annual Report schedule, this data needs to be delivered to Todd Groundwater no later than January 10, 2020. We will provide data templates to each district to provide monthly data for the following: • Surface water imports and diversions (inflows and outflows) by source • Application of surface water imports by category (e.g. irrigated agriculture, urban, managed aquifer recharge, or other uses). • Groundwater banking and managed aquifer recharge by water district or agency, • Groundwater banking pumping for export from the basin, • Metered district groundwater recovery pumping, • Metropolitan Bakersfield urban water deliveries and wastewater disposal, and • Any other locally relevant water supply use or demands. Todd Groundwater will update the natural hydrology for precipitation and flows in gauged streams (Kern River and Poso Creek). Precipitation data will be updated using publicly - available precipitation data from the PRISM Climate Group at Oregon State University. The monthly rainfall data for Kern County for WY2016 through WY2019 will be mapped into C2VSimFG-Kern input files. The Kern River and Poso Creek streamflow for WY2016 through WY2019 will be updated based on locally measured weir data. Kern County GSAs will also separately contract with the Irrigation Training & Research Center (ITRC) at Cal Poly San Luis Obispo to deliver evapotranspiration (ET) using remote sensing data across the entire subbasin for determining agricultural demand corresponding to the WY 2016 through WY 2019. Todd Groundwater will utilize the ITRC ET data to develop ET rates for Kern County for this period for model input. To meet this Annual Report schedule, this data needs to be delivered to Todd Groundwater no later than January 17, 2020. As mentioned previously, GSP regulations require a graph depicting the annual and cumulative change in groundwater in storage "based on historical data to the greatest extent available, including from January 1, 2015 to the current reporting year." (§ 356.2 (b)(5)(13)). To meet this requirement, the updated C2VSimFG-Kern subbasin-wide results will be appended to the historical C2VSimFG-Kern results for WY 1995 — WY 2015. One annual Proposal - 2019 Annual Report, Kern County Subbasin 6 TODD GROUNDWATER In + 1 " yffift 1, r LWAI US coordinatethen acceptance of the method by DWR. d. �.. February to allow agency input into the development process, It is recognized that the Administrative , analysis methods and results prior to finalization of Comments will be incorporated into the Administrative Draft to develop a Draft Annual Report (probably release in w—Qy tToojj-1,�_—_j agency review and comment. A Final Draft will also be available prior to submittal for any nor addi ,Ac,- L A ieadline of April 1. Task 8; Communications and Meetings thereAs indicated above, will be a need for communication with Subbasin GSAs and KGA conference2019 Annual Report. Communications will include individual calls/emails with Subbasin periodic A managers, and in-person meetings to present progress to date outstanding items or The preparation of the Annual Report will occur at a busy time for Subbasin agencies. Finalization of P and preparation for , t submittals will be ongoing. zxoedited schedule of the 2019 Annual R*I ',gr be needed to allow Subbasin agencies to focus on required details of the 2019 Annual Proposal - 2019 Annual Report, Kern County Subbasin 7 TODD GROUNDWATER To expedite the process, Todd Groundwater will coordinate directly with the Subbasin Plan Manager, Patty Poire, to ensure timely data compilation, review, and incorporation of the required analyses to meet GSP Annual Report requirements. In particular, any questions or contacts with DWR regarding clarifications of Annual Report requirements will be coordinated through the Subbasin Plan Manager. For budget and planning purposes, four in-person meetings are assumed as part of this scope. Because of the large number of attendees, the KGA Managers Meetings —typically held on Friday mornings —will be used as a forum for data requests, discussion, and comments regarding the Annual Report preparation process. These four meetings, along with the primary objectives and tentative dates, are summarized as follows: • Meetip&No 1: Provide data request memorandum and templates to agencies and discuss approach for technical analyses including historical change in groundwater in storage; tentatively scheduled for November 8, 2019 • Meetin No. 2: Finalize technical approach for Change in Groundwater in Storage and other technical analyses; tentatively scheduled for December 6, 2019 • Meeting No. 3: Review Administrative Draft Annual Report and address deficiencies; tentatively scheduled for February 21, 2019 • Meeting No. 4: Review Final Draft Annual Report; tentatively scheduled for March 13, 2019. 3 BUDGET AND SCHEDULE Execution of the scope of work described herein is estimated to cost $174,830. This cost allows for a variety of technical methods to be considered and employed to meet regulatory requirements and the condensed schedule for Annual Report development. Table 1 shows costs by task, along with estimated labor hours and rates. Proposal - 2019 Annual Report, Kern County Subbasin 8 TODD GROUNDWATER Our work on the Annual Report can begin in October with additional work on approach for Annual Report items. Technical work can begin in November when water level data from Fall 2019 have been collected and requested data have been compiled. With a submittal date of April 1, 2020, most of the work on the 2019 Annual Report will occur over four months (November through February) with final review and edits of the report targeted for March 2020. A proposed schedule, including the four meetings described in Task 8 is shown below. v to 2011111 Amty sur TASK ZDt9 z"0 Ott Dft Jan Fob MAW Meetis 'I b�j-SubmKWIo DWR Please let us know if you have questions regarding this proposal. For the 2019 Annual Report, time is of the essence, and we stand ready to move the effort forward as soon as possible. Proposal - 2019 Annual Report, Kern County Subbasin 10 TODD GROUNDWATER ATTACHMENT 1: EXAMPLE ANNOTATED TEMPLATE FOR 2019 ANNUAL REPORT Kern un sin Groundwater Sustaa;nabilit Plans (GSPs) 2490 Mariner Square Loop, Suite 215 Alameda, CA 94501 510.747.6920 www.toddgroundwater.com Table of Contents ExecutiveSummary ................................................................................................................... 1 1 Introduction.................................................................................................................... 1 1.1 Purpose of the 2019 Annual Report ...................................................................... 1 1.2 Coordinated Submittal.......................................................................................... 1 2 Groundwater Elevations ............................................ l ...,;............................................ 2 2.1 Groundwater Elevation Contour Map for Ea6h'Principal Aquifer ......................... 2 2.2 Hydrographs from WY 1995 through Seterriber 2019 ........................................ 2 3 Groundwater Extractions .................... .................... 3 3.1 Summary Extractions by Subbas n for WY 2019 ...........:.................................... 3 3.2 Table of Extractions ................... ... 3 3.3 Extractions Map.. ....e ..: .........................,,. ..................... 3 4 Surface Water Supply... ..... ................ ................................................ 4 4.1 Total Surface Water Use. ......................................... 4 4.2 Surface Water by'Source Type.., .......£.: t ............... ....................................... 4 5 Total Water ase. ...... ........................................................ 5 6 Change in Groun ,*titer in Storage...................................................................... 6 6.1 Map of Change, in Groundwater in Storage for the Subbasin ............................... 6 6.2 Graphs of -Change ih Groundwater in Storage ...................................................... 6 7 Progress in GSP Impieml entatio;n................................................................................... 7 8 References and Technical Studies................................................................................... 8 9 Appendices....................................................................................................................9 2019 Annual Report Kern County Subbasin i TODD GROUNDWATER List of Tables ........... ... ..... __,_ ... . . .................... . _ . . . ..................... .......... ... . .................... No table of contents entries found. APPENDIXA: te ber 3 , 2019, including Location Map APPENDIX B: ree ent (or refer to original in GSPs) List of Acronyms AFY acre feet per year 2019 Annual Report Kern County Subbasin H TODD GROUNDWATER EXECUTIVE SUMMARY Provide an executive summary and location map depicting the basin covered by the report (Reg. § 356.2(a)). 2019 Annual Report Kern County Subbasin ES -1 TODD GROUNDWATER 1 INTRODUCTION Include general information and location map for the basin covered by the report (Reg. § 356.2(a)). This First Annual Report (2019 Annual Report) for the collective implementation of the Groundwater Sustainability Plans (GSPs) in the Kern County Subbasin is being prepared under the guidance of Water Code Section 10728. The 2019 Annual Report provides data and information for the entire Kern County Subbasin, including 11 GSAs that have cooperated in the preparation of five GSPs. Subbasin GSAs and GSP are shown on Figures 2 and 3, respectively. 1.1 PURPOSE OF THE 2019 ANNUAL REPORT The purpose of the 2019 Annual Report is to demonstrate that- , 6SPs in the Kern County Subbasin are being implemented in a manner that will achieve the sustainaba�ity goals that have been developed for the Subbasin and individual GSAs. The 2019 Annual Repohprovido, n update on the groundwater conditions for Water Year 2019, and documents proge" i'on GSP impletnentation. Data and analyses cover the period from October 1, 2018 through Se}ern6er 30, 2019; his,�al analyses are provided for context for some components, as required by the'togu,lations. Specifically, for this First Annual Report, some additi period from October 1, 2015 through September 30, data from this four-year period provides a jbt dge lied 2015) of the Subbasin GSPs and the reportirig`period 1.2 COORDINATED S Describe process by which Su(basin dao were All of the GSAs-"n the Kern County'Subbasin Report. Figures and tables will be As required by GSP gave been required to cover the time 6 through WY 2019). Inclusion of of the Current Study Period (WY \nnual Report (i.e., WY 2019). and compiled. to prepare and submit this First Annual the GSRs and GSPs in the Subbasin. this Annual Report contains... summarize organization and contents. 2019 Annual Report Kern County Subbasin 1 TODD GROUNDWATER iden ffffied in the monitoring network. of maps with this Annual Report — Spring and / 9 with k map per Principal Aquifer ,p tall) Will we have Santa Margarita maps from Kern Tulare and others on the Eastside? (matching , rr JJ ra date, depthto water, zz I;', i'"'t t, "`Ix -t v D". bcontoured ,I,hand- cross Al agencies, as needed. A !. '. x 01 r� :I ' 2s 11'1 4� t .# Sectl®n use®11 include arra! Ig,r Ground a!e7elevir, ater Year 7 ;7 p Historical !-th 7-',. io 'd 1, 6, r. "�i, ,, �, �♦ ♦' SA r AydrographrequirementsfromData and Reporting Standards • Hydrographs shallbe submitted electronically in accordance with th.. procedures in Article r • Hydrographs shall include,, unique site identification mbe and the ground surface elevation for each site jff 2019 Annual Report Kern County 5u sin 2 TODD GROUNDWATER 3 GROUNDWATER EXTRACTIONS GSP requirements in § 356.2(b)(2). 3.1 SUMMARY EXTRACTIONS BY SUBBASIN FOR WY 2019 Total groundwater extractions for the Subbasin for the preceding water year (WY 2019) will be summarized and provided in this section. Data should be collected by "best available measurement methods." 3.2 TABLE OF EXTRACTIONS Based on our SGMA reporting in Adjudicated Basins, we regarding extraction data reporting. Data may not be at • Water Use Sector (including volume, expla o Urban ■ a Landsca Lar g pe ■ Commercial ■ Industrial ■ Residential Agricultural Managed Wet'lands Managed ,ReEt Recha'rg'e,, Other Sector , • Measu • Accuracy of Measuremenj o Low, medium, hig 3.3 EXTRACTIONS MAP and unce !following formats from DWR sectors for this first report. Map that illustrates the general location and volume of groundwater extractions § 356.2(b)(2). This map will be developed with various formats, depending on the data provided. At a minimum, we assume preparation of a map will showing extraction wells b well t e a ricultural munici al etc.), using available information from the agencies. To meet the criteria of showing volumes of extractions, we anticipate developing various "bubble" maps showing groundwater extractions for general areas. 2019 Annual Report Kern County Subbasin 3 TODD GROUNDWATER 4 SURFACE WATER SUPPLY § 356.2(b)(3) Surface water supply used or available for use, for groundwater recharge or in -lieu use shall be reported based on quantitative data that describes the annual volume and sources for the preceding water year. 4.1 TOTAL SURFACE WATER USE Total surface water use will be reported for the Kern County Subbasin, including a summary of the methods used to determine the volume and the associated uncertainty (high, medium, low). These data will be compiled from the individual agencies in the Subbasin. 4.2 SURFACE WATER BY SOURCE TYPE Tables will be developed to document the volumes and Local Surface Deliveries Local Imported Deliveries Colorado River Deliveries CVP Oth Stat Rec, Des; Oth by Water Source Type: 2019 Annual Report Kern County Subbasin 4 TODD GROUNDWATER 5 TOTAL WATER USE § 356.2(6)(4) Total water use. Provide total volume of water used in the Subbasin for WY 2019, including the method used to determine and the level of uncertainty (low, medium, high) o Water Use Sector Urban + Large Landscape • Commercial ® Industrial • Residential Agricultural Managed Wetlands ® Managed ecar Other Sector Water Source Type Groundwater Surface water 2019 Annual Report Kern County Subbasin 5 TODD GROUNDWATER GSP regulations require an annual change in groundwater in storage map for the entire Kern County Subbasin be included in the Annual Report. We will follow up with DWR whether this requirement is fl, only the preceding year (WY 2019) or whether it applies to all four intervening water years (WYs 2016 through 2019). ntire Kern County Subbasin using the C2VSimFG-Kern model. By doing so, we continue to u -IMO/ * ir 77,41; *TX* -Tog oragi. 0011 IM E=M11 I ;IIIIII !I11"111, !III III rJ11111 p III 1:111if If 11 : IT; CMMII I'M ,--xtent available, includinF.--fromJanuarv-��,-e curre For the Kern County Subbasin, this graph will present annual changes in groundwater in storage from the C2VSimFG-Kern m year in the historical and current study periods (WY 1995 — WY 2015). New water budget analyses will be developed forthe remaining time period WY 2016 —WY 2019. To meetthe regulatory requirement for this graph, the updated C2VSimFG-Kern subbasin-wide results will be appended to the historical C2VSimFG-Kern results for WY 1995 — WY 2015. 2019 Annual Report Kern County Subbasin 6 TODD GROUNDWATER 7 PROGRESS IN GSP IMPLEMENTATION § 356.2(b)(5)(C) A description of progress towards implementing the Plan, including achieving interim milestones, and implementation of projects or management actions since the previous annual report. For this section, we assume receipt of text from each GSAs/Districts that describes ongoing implementation of each GSP. A brief description of the projects and management actions being implemented will be included, as relevant. This section is not meant to repeat information in the recently -submitted GSPs and will simply refer to the GSPs as appropriate. In particular, this section will describe relevant monitoring data and how these data are being used. GSP monitoring data can be summarized/included in an appendix. Wp"vui0 confirm with DWR how much of the data and formats are required to accompany the submission ,611 [he Annual Report. 2019 Annual Report Kern County Subbasin 7 TODD GROUNDWATER REFERENCES AND TECHNICAL STUDIES To be listed os needed. 19 Annual KernouSubbasin 8 TODD GROUNDWATER 9 APPENDICES • Hydrographs and other data. • Possible inclusion of other information, if determined to be needed by MR. 2019 Annual Report Kern County Subbasin 9 TODD GROUNDWATER n7MCH HQ�' � awaofivj; mder in new Awfim Agreement for rTRC MSIC 2017-.2019 EE To: Patty Polre, Planning Manager Kam Groundwater Authority 222!K��� Mobile: (661)706-1989 From: Dan Howes, Ph.D., P.E. Project Manager/Senior Engineer Irrigation Training and Research Center Cal Poly/ San Luis Obispo, CA 93407 Cell: 858-354-0504 Subject: Proposal for ITRC-METRIC evapotranspiration for Kam Subbasin (2017-2019) This proposal is being submitted to Kern Groundwater Authority (KGWA) by the Irrigation Training and Researc Center (ITRQ at Cal Poly State University, San Luis Obispo. Scope of Work, (Jpdate of frRC-,Mf"TRX'20J7-,2'0J,9 Water; Year and Calendar Year Y 1, C "AII �m'vjle nr a"�7 1-1-A XRC�%Ax' R- Ir I fTr th;��-Kzraa S-V�&asln 2017-2019. The following items will be completed: 1. Data will be extracted for each GSA within the subbasin and each irrigated field in each GSA monthly for 2017-2019. We can also provide the data for parcels (larger than 5 acres). 2. Date will be provided tabula rly and monthly ETc images will be provided In GIS format. 3. Short report discussing the general process and overall results will be provided, D,pliverablas rin7efine fiw prqjt�a Assuming the full 2019 results are desired, report and data will be provided by February 1, 2020. If water year only results are desired, results will be provided by November ,0 1, 1JVk MM Dan Howes Project Manager, Irrigation Training and Research Center Cal Poly San Luis Obispo, CA 93401-0730 djhowes@calpoly.edu IRRIGATION I'RAINING RESEARC11 CENTER Cahforffia POM.Pchrft State UnWersitir Sari � Ws Obispo, CA'93407� 0730 Phonc 805, 756,20111 FAX:805.75&2433 MWWArc,arg ",'I- The contract will be administered by: Cal Poly Corporation Building #15 One Grand Avenue San Luis Obispo, CA 93407 Note: Dr. Howes should be the contact person. Budget The total budget Is a fixed price Fee for Service of $16,000. The full amount will be invoiced when the draft results are transmitted to KGWA. The Cal Poly Corporation requests that a KGWA representative agree to the Standard Terms and Conditions, which are attached to this proposal. The signed approval can be scanned and submitted via e- mail to Dan Howes. Invoicing and as e ITRC will submit to KGWA (Patty Poire), an invoice of the full fixed cost when transmitting the draft results. Payment should be made payable to "Cal Poly Corporation" and sent to: Dr. Dan Howes Irrigation Training and Research Center (ITRC) One Grand Ave Bldg 8A California Polytechnic State University San Luis Obispo, CA 93407-0730 Aut orkr tlonjM A :sol Name of authorized ITRC representative: Daniel Howes Signature of RRC representative Named of authorized Kern GWA representative: Patty Poire ��.��'... ..........._w.„.. Signature' f the representative: Wrigati1an T'ilabii�u^mr lteseard�m°utmi�Er �r . dat:. date CWTStandard Terms and CppdiVois Ilirngation linlid inn & Research Center 3 .. EXHIBIT 1 Funding Contributions Total Contracts $190,830.00 Todd Groundwater $174,830.00 ITRC $16,000.00 7 8 9 Kern County Water Agency - Pioneer Project $8,674.09 10 Kern -Tulare Water District $8,674.09 11 Kern Water Bank Authority $8,674.09 12 North Kern Water Storage District $8,674.09 13 14 Rosedale -Rio Bravo Water District $8,674.09 15 Semitropic Water Storage District $8,674.09 16 Shafter-Wasco Irrigation District $8,674.09 16 Shafter-Wasco 7th Standard Annex $8,674.09 17 South San Joaquin Municipal Utilities District $8,674.09 18 Tejon-Castac Water District $8,674.09 19 West Kern Water District $8,674.09 20 Westside District Water Authority $8,674.09 21 Wheeler Ridge-Maricopa Water Storage District $8,674.09 Totals $190,830.00 Invoices: KGA: $138,785.45 $26,022.27 $8,674.09 �((Henry Miller: $8,674.09 $8,674.09 f $8,674.09 $190,830.00