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2900 UNION AVE _GROUNDWATER LETTER 1.12.09
E2C Remediation Environmental Engineering, = Consulting and Remediation, Inc. January 12, 2009 LOW Mr. Nassri Jaber 2900 Union Avenue Bakersfield, CA 93305 SUBJECT: Third and Fourth Quarters 2008 Groundwater Monitoring and Remediation Status Report Minit Stop Market 2900 Union Avenue Bakersfield, California Dear Mr. Jaber: E2C Remediation (E2C) is pleased to present this report to document Third and Fourth Quarters 2008 groundwater monitoring activities for the Minit Stop Market located at 2900 Union Avenue (Site), Bakersfield, California. In addition, this report documents the remediation status for the Site. This report has been prepared by E2C for Mr. Nassri Jaber to document site conditions as required by the State of California Regional Water Quality Control. Board — Central Valley Region, the Lead Regulatory Agency. It is a pleasure to be of service, should you have any questions regarding this submittal, do not hesitate to call the undersigned at 661- 831 -6906. Respectfully Submitted, E2C Remediation Philip Goalwi P.G. #4' Principal Geo gist cc: Mr. John Whiting, P.G. Regional Water Quality Control Board - Central Valley Region 1685 E Street Fresno, CA 93706 Mr. Howard H. Wines III, P.G. Hazardous Materials Specialist City of Bakersfield Fire Department, Office of Environmental Services 900 Truxton Avenue, Suite 210 Bakersfield, CA 93301 5300 Woodmere Drive, Suite 105, Bakersfield, CA 93313 tel 661.831.6906 fax 661.831.6234 www.e2cr.net E2C Remediation Environmental Engineering, Consulting and Remediation, Inc. THIRD QUARTER 2008 GROUNDWATER MONITORING AND REMEDIATION STATUS REPORT MINIT STOP MARKET 2900 UNION AVENUE BAKERSFIELD, CALIFORNIA January 12, 2009 Project Number 1803BK26 Prepared For: Mr. Nassri Jaber 2900 Union Avenue Bakersfield, CA 93305 Prepared By: E2C Remediation Environmental /Engineering Consultants 5300 Woodmere Dr., Suite 105 Bakersfield, CA 93313 5300 Woodmere Drive, Suite 105, Bakersfield, CA 93313 tel 661.831.6906 fax 661.831.6234 www.e2cr.net Proiect Number 1803BK26 January 12, 2009 TABLE OF CONTENTS TABLEOF CONTENTS ................................................................................. ............................... i LIST OF FIGURES "' LIST OF TABLES "' LIST OF APPENDICES ................ .............................................................. ............................... iii " EXECUTIVESUMMARY .............................................................................. ..............................1 Discussion of Groundwater Monitoring Data ............................................. ..............................1 Summary of Remediation Status ................:.............................................. ..............................1 Conclusions............................................................................................... ..............................2 Recommendations..................................................................................... ..............................2 1.0 INTRODUCTION.............. .................................................................. ..............................3 1.1 Site Description .............. ................................................................ ..............................3 1.2 Site Geology and Hydrology ........................................................... ..............................3 1.2.1 Site Geology ............................................................................ ..............................3 1.2.2 Site Hydrogeology .................................................................... ..............................4 1.3 Summary of Site History ................................................................. ..............................5 1.3.1 Site Assessment Status ........................................................... ..............................6 2.0 GROUNDWATER MONITORING ...................................................... ..............................6 2.1 Third Quarter 2008 Groundwater Monitoring .................................. ..............................6 2.1.1 Groundwater Elevation Monitoring ........................................... ..............................6 2.1.2 Groundwater Sampling Methods and Procedures ................... ..............................7 2.1.3 Recycling of Purge Water ........................................................ ..............................7 2.1.4 Groundwater Analytical Services ............................................. ..............................7 2.1.5 Summary of Third Quarter 2008 Groundwater Analytical Data ..............................8 2.1.6 Quality Control Samples ......................................................... ............................... 8 2.2 Fourth Quarter 2008 Groundwater. Monitoring ................................ ..............................8 2.2.1 Groundwater Elevation Monitoring ........................................... ..............................8 2.2.2 Groundwater Sampling Methods and Procedures ................... ..............................8 2.2.3 Recycling of Purge Water ........................................................ ..............................8 2.2.4 Groundwater Analytical Services ............................................. ..............................8 2.2.5 Summary of Fourth Quarter 2008 Groundwater Analytical Data ............................9 2.2.6 Quality Control Samples ......................................................... ............................... 9 2.3 Compliance with AB 2886 ............................................................... ..............................9 2.4 Discussion of Groundwater Monitoring Data ................................... ..............................9 3.0 REMEDIATION STATUS REPORT .................................................. .............................10 3.1 Remedial System Operations — Thermal Oxidizer Mode ................ .............................11 3.2 Remedial System Operations - Thermal /Catalytic Mode ................ .............................11 3.3 Proposed Remediation System Modifications using Granular Activated Carbon ......... 12 3.3.1 Air Sparge Compressor .......................................................... .............................13 3.4 Compliance with SJVAPCD Permit To Operate ............................. .............................13 3.5 Fuel Hydrocarbon Mass Removal Rates ........................................ .............................14 E2C Remediation i Proieci Number803BK26 January 12, 2009 3.6 Discussion of Remedial Efficiency ................................................. .............................14 4.0 CONCLUSIONS ................................................................................ .............................15 ' 5.0 RECOMMENDATIONS ...., ................................................................. .............................15 6.0 LIMITATIONS AND REPORT CERTIFICATION ......................... .............................16 I I I I I I E2C Remediation 9 Project Number 1803BK26 January 12, 2009 LIST OF APPENDICES Appendix A Third Quarter 2008 Groundwater Purge Data Sheets Appendix B Third Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Appendix C Fourth Quarter 2008 Groundwater Purge Data Sheets Appendix D Fourth Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Appendix E Purge Water Transport Manifests and Recycling Certif icates Appendix F Vapor Analytical Laboratory Reports and Chain -of- Custody Appendix G GeoTracker Upload Confirmation Reports EZC Remediation di LIST OF FIGURES Figure 1 Site Location Map Figure 2 Site Plan Figure 3A Third Quarter 2008 Groundwater Gradient Plot Figure 3B Fourth Quarter 2008 Groundwater Gradient Plot Figure 4A Third Quarter 2008 Benzene Distribution Plot Figure 4B Fourth Quarter 2008 Benzene Distribution Plot Figure 5A Third Quarter 2008 TPHg Distribution Plot Figure 513 Fourth Quarter 2008 TPHg Distribution Plot Figure 6 Groundwater MtBE Concentration Trends Figure 7 VE /AS /GAC Process Flow Diagram LIST OF APPENDICES Appendix A Third Quarter 2008 Groundwater Purge Data Sheets Appendix B Third Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Appendix C Fourth Quarter 2008 Groundwater Purge Data Sheets Appendix D Fourth Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Appendix E Purge Water Transport Manifests and Recycling Certif icates Appendix F Vapor Analytical Laboratory Reports and Chain -of- Custody Appendix G GeoTracker Upload Confirmation Reports EZC Remediation di LIST OF TABLES Table 1 A Summary of Third Quarter 2008 Groundwater Monitoring Data Table 1 B Summary of Fourth Quarter 2008 Groundwater Monitoring Table 2 Summary of Historical Groundwater Elevation Data Table 3 Summary of Historical Groundwater Analytical Data Table 4 Summary of VE/GASS Monitoring Data Table 5 Summary of Hydrocarbon Mass Removed Table 6 Summary of Influent Vapor Analytical Data Table 7 Summary of Effluent Vapor Analytical Data LIST OF APPENDICES Appendix A Third Quarter 2008 Groundwater Purge Data Sheets Appendix B Third Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Appendix C Fourth Quarter 2008 Groundwater Purge Data Sheets Appendix D Fourth Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Appendix E Purge Water Transport Manifests and Recycling Certif icates Appendix F Vapor Analytical Laboratory Reports and Chain -of- Custody Appendix G GeoTracker Upload Confirmation Reports EZC Remediation di Proiect Number 1803BK26 January 12 EXECUTIVE SUMMARY On July 15 and October 27, 2008, E2C Remediation (E2C) conducted Third and Fourth Quarter 2008 groundwater monitoring and sampling at the Minit Stop Market located at 2900 Union Avenue, Bakersfield, California (Site) (see Figure 1). In addition, this report documents the ' remediation status for the Site. This report has been prepared by E2C for Mr. Nassri Jaber to document site conditions as required by the State of California Regional Water Quality Control Board — Central Valley Region, the Lead Regulatory Agency in ongoing directive letters, most recently dated August 18, 2008. Discussion of Groundwater Monitoring Data ' The groundwater flow direction and gradient in the Third and Fourth Quarters 2008 were consistent with interpreted historic flow directions and gradients. ' In the Third and Fourth Quarters 2008 dissolved -phase COCs were reported as non - detect at well MW -1. At the upgradient (somewhat cross - gradient) monitoring well (MW -4), fuel constituents of concern (COCs) benzene, toluene, ethylbenzene and xylenes (BTEX) and Total ' Petroleum Hydrocarbons as gasoline (TPHg) have been reported as non - detect for fifteen (15) consecutive quarters. Similarly, at MW -2, located downgradient and cross - gradient to the southwest, COCs have been reported as non - detect for seventeen (17) consecutive quarters. ' In July 2007, COCs rebounded! slightly at MW -3, and then showed a declining trend through April 2008. In July 2008, COCs rebounded at MW -3 possibly due to rising water levels (approximately 3.84 feet in the Third Quarter 2008). In October 2008, COCs decreased at ' MW -3 as water levels fell (approximately 2.49 feet in the Fourth Quarter 2008). The decrease in COC concentrations at MW -3 is also attributable to the operation of the remedial system which was restarted in August 2008. At the furthest downgradient well (MW -5), sporadic low ' concentrations of dissolved -phase COCs were reported prior to August 2005. Since that time, all COCs have been reported as non - detect at that well. This data indicates that remedial operations at the Site had been effective in reduction of `source' mass in the Source Area ' vadose zone and in reduction of dissolved -phase components in groundwater throughout the Site. t Additionally, the moderate concentrations of COCs at MW -3 indicate that a groundwater 'source' mass occurs in the area between MW -1 and MW -3; however, migration downgradient has not progressed any great distance, as COCs are non - detect at MW -5. ' Note: 1,2- Dichloroethane (1,2 -DCA) and 1,2- Dibro mom ethane (a.k.a. ethylene dibromide) (EDB), were reported as non - detect in groundwater at the Site since December 2004. The analysis for 1,2 -DCA and EDB were discontinued per the RWQCB letter dated December 21, ' 2006. Additionally, the five fuel oxygenates of methyl tertiary-butyl ether (MtBE), di- isopropyl ether (DIPE), ethyl tertiary- butyl) ether (ETBE), tertiary-amyl methyl ether (TAME) and tertiary- butyl alcohol (a.k.a. tert- butanol) (TBA) have been reported as non - detect at all wells since I ' August 2005. The analysis for DIPE, ETBE, TAME and TBA were discontinued per the RWQCB letter dated August 18, 2008. Summary of Remediation Status ' Remedial system influent concentration averages indicated that the thermal /catalytic oxidizer unit had reached the limit of its effectiveness for continual operations mode, and that the time ' and costs necessary to modify the remedial system to an electric /catalytic oxidizer were not warranted. Therefore, the site remediation system was shut down in July 2006. Based on t E2C Remediation Proiect Number 1803BK26 January 12. 2009 recent rebound of low to moderate COCs in groundwater beneath the Site, restart of the thermal oxidizer unit was warranted. As such, E2C recommended restart of the system. The RWQCB in verbal communication with E2C concurred with this conclusion and E2C restarted the remedial system using thermal catalytic treatment on August 22, 2008. Conclusions Based on the site assessment work, groundwater monitoring data and remedial operational data obtained at the Site to date,. E2C concludes the following: • The average groundwater elevations beneath the Site increased an average of 3.84 feet in the Third Quarter 2008. The average groundwater elevations beneath the Site decreased an average of 2.49 feet in the Fourth Quarter 2008. The groundwater flow directions were southeasterly, which were consistent with historic groundwater flow directions and gradients; • Remedial operations (using the VE/GASS) at the Site have been effective in removing fuel hydrocarbons from the subsurface and in controlling migration of the groundwater fuel hydrocarbon plume, evidenced by COCs being reported as non - detect for a minimum of ten (10) quarters at MW -2 and MW -5. Note: Prior to that, only sporadic low concentrations of COCs were reported and MtBE, DIPE, ETBE, TAME and TBA have not been reported since the August 24, 2005 sampling event; • Fuel hydrocarbon concentrations (BTEX and TPHg) in groundwater had shown significant reductions across the Site since startup of the remediation system. However, rebound in dissolved fuel hydrocarbon concentrations occurred in the Third quarter 2008 in the area of well MW -3; and ' Fuel hydrocarbon mass removed, through August 2, 2006 and from August 22 through December 1, 2008, was calculated as approximately 179,361 Ibs, or approximately 28,025 gallons. tRecommendations E2C makes the following recommendations based on the above conclusions and the data ' presented in this report: ■ Continue to monitor and sample groundwater at the Site on a quarterly basis; ■ Analyze groundwater samples for BTEX and MtBE using EPA Method 8260b. The ' RWQCB concurred with this recommendation in the their letter dated August 18, 2008; ■ Continue to operate the remedial system using a thermal catalytic treatment method; and ' ■ Continue to submit groundwater monitoring reports and remediation status reports to the Client, the RWQCB and the BFD on a quarterly basis. E2C Remediation 2 1 Pr Number 1803BK26 January 12, 2009 1.0 INTRODUCTION ' On July 15 and October 27, 2008, E2C Remediation (E2C) conducted Third and Fourth Quarter 2008 groundwater monitoring and sampling at the Minit Stop Market located at 2900 Union Avenue, Bakersfield, California (Site) (see Figure 1). In addition, this report documents the remediation status for the Site. This report has been prepared by E2C for Mr. Nassri Jaber to ' document site conditions as required by the State of California Regional Water Quality Control Board — Central Valley Region, the Lead Regulatory Agency in ongoing directive letters, most recently dated August 18, 2008. ' 1.1 Site Description ' The Site is a Texaco gasoline station and convenience store ( Minit Stop Market) located in Bakersfield, California, at 2900 Union Avenue, on the northeast corner of Union Avenue and Pacific Street (see Figure 1 for Site Location Map). The Site is located within the southwestern ' quarter of the southwestern quarter of Section 20, Township 29 South, Range 28 East, and MDBM. The Site is at an elevation of approximately 428 feet above Mean Sea Level (msl) and the topography is relatively flat with a slight slope to the southwest. ' The Minit Stop facility consists of a convenience store and a canopy- covered fueling area consisting of one fueling island located west of the building. The lot covers an area of approximately 14,950 square feet with one (1) structure of approximately 2,000 square feet in ' the east center of the parcel. Formerly located at the Site were three (3) 10,000 — gallon gasoline USTs, and four (4) multiple product dispensers (MPDs) on a single dispenser island (also, two 5,000 - gallon gasoline USTs were abandoned in place). The former USTs were ' located to the north and east of the present fueling area. Currently present at the Site are a 20,000 - gallon, doubled - walled, split- chambered UST and two (2) dual -sided MPDs on a single dispenser island, with the 15,000- gallon chamber used to store regular unleaded gasoline and ' the 5,000 — gallon chamber used to store premium - unleaded gasoline. The surrounding area consists of mixed industrial, commercial and residential uses along Union ' Avenue. The sites directly adjacent to the subject property are described below: ■ North: Located adjacent to. the subject site is a service shop (Air - Draulics Sales and Service); ' ■ South: Pacific Street bounds the Site to the South and beyond is a general contractor (Silver AC & Heating); ■ East: An alley bounds the Site to the East and beyond, is a single - family residence; and ' ■ West: Union Avenue bounds the Site to the West and beyond are a canal and a storage warehouse (Kern Ice & Cold Storage Co.). ' 1.2 Site Geology and Hydrology 1.2.1 Site Geology ' The property is located in the south central area of the San Joaquin Valley where the Sierra Nevada, Great Valley, and Coastal Range physiographic provinces meet. The southern end of the Sierra Nevada Province is composed of a massive block of igneous and metamorphic rock ' of Mesozoic age and older. This Sierran block, 40 to 100 miles wide and 400 miles long, slopes five to seven degrees beneath the San Joaquin Valley. The Coastal Range province on the west consists of tectonically deformed and fractured marine and non - marine sedimentary rocks of Jurassic, Cretaceous, and Tertiary age, which dip eastward beneath the San Joaquin Valley. ' The Great Valley province is a broad asymmetrical synclinal trough, which is known as the IE2C Remediation Proiect /Number 1803BK26 January 12, 2009 Sacramento Valley in the north and the San Joaquin Valley in the south. Beneath the southern San Joaquin Valley floor, the Sierran plutonic and metamorphic rock block is overlain by consolidated marine rocks of Jurassic and Cretaceous age. These rocks are overlain by continental marine and non - marine sedimentary rocks of Tertiary age, which are comprised of continental deposits of consolidated to semi- consolidated, fossiliferous sandstone, siltstone, and shale which thicken toward the south and west. The Tertiary rocks in turn, are overlain by unconsolidated continental deposits, which consist of Pliocene to Holocene river and lake sediments of gravel, sand, silt, and clay. Surface features of the floor of the San Joaquin Valley consist of dissected uplands, alluvial fans, overflow areas, and lake bottoms. Dissected uplands lie between the mountains and the nearly flat Valley floor and are manifest in low -lying hills through which perennial and intermittent streams flow. These features consist of reworked older alluvium. The alluvial fans are the sites of active stream deposition of sands and silts derived from the Sierra Nevada and. the dissected uplands. The overflow lands and lake bottoms lie in the central part of the Valley where silt and clay accumulate in quiet lake and marsh environments. The Site lies in the northeast portion of the City of Bakersfield on a geomorphological feature loosely termed "the Panorama Bluffs ". The Panorama Bluffs achieve an elevation of approximately 900 feet mean sea level (MSL) and slope to the south - southwest. The Panorama Bluffs are a slightly ti'Ited (uplifted) erosional remnant of the deposition along the Kern River. The Kern River is located just north of the Bluffs at its base. The depositional environment of the bluffs is alternating between high- energy deposition (gravel, cobbles, and boulders) and low- energy deposition (silts and clays in overbank deposits). The subsurface beneath the Site is characterized by interbedded silt, clayey silt, silty to clayey sand, and sand with gravel and clay lenses. Beneath the Site, dense layers of gravel to cobbles of weathered granite exist between depths of approximately 50 feet and 75 feet below ground surface (bgs). Off the Site, in the downgradient direction at the location of MW -5, dense layers of gravels to cobbles of weathered granite exist between 30 feet and 75 feet, and between 90 feet and 105 feet bgs, with a layer of fine to medium grain size sand (SP) between them. 1.2.2 Site Hydrogeology A broad, thick hydrogeologic unit consisting of soil and rock with varying porosity and permeability underlies the Central) Valley of California. Physical dimensions are approximately 50 miles wide at the widest point in the Valley, 400 miles long, and as much as 2,000 feet deep. Recharge to regional aquifers consists of infiltration of seasonal precipitation and percolation of surface waters. The Valley aquifer of greatest storage, highest quality, and greatest accessibility for domestic and agricultural use consists of the alluvial and lacustrine continental deposits extending to the depths of 1,500 to 2,000 feet beneath the San Joaquin Valley floor. Lithologic and hydraulic properties of these sediments are largely -the product of the sediment source and the depositional environment. The sediments range in size from clays to boulders and include all mixtures between the extremes. Western sediments are derived largely from the Coastal Ranges, and tend to consist of shales and fine sandstones with limited permeability. Eastern sediments are derived mainly from granitic materials of the Sierra Nevada, and are generally coarser and much more permeable. Sediments encountered during the borings at the Minit Stop site consisted of alluvial and fluvial deposits of interbedded silt, clayey silt, silty to clayey sand, and sand with gravel and clay lenses. Dense layers of E2C Remediation Project Number 1803BK26 January 12. 2009 permeable, weathered granite gravel and cobbles exist between depths of approximately 50 feet and 75 feet bgs. Regionally, the depth to groundwater ranges between 200 and 220 feet below grade, according to the 1996 Water Supply Report published by the Kern County Water Agency in July 2000. During. February 2002 drilling activities, first encountered groundwater was found at a depth of approximately 120 feet bgs. During January 2003 drilling activities, first groundwater was also encountered at a depth of approximately 120 feet. During July 2003 drilling activities, first groundwater was also encountered at a depth of approximately 119 feet bgs. See Table 3 for a summary of historical groundwater elevations. 1.3 Summary of Site History On March 18, 1999, the City of Bakersfield Fire Department (BFD) (lead agency for the Site) issued a temporary closure permit for the Site. The underground storage tank upgrades had not been completed and temporary closure was in effect as of that date. In March 2000 a Phase I Environmental Site Assessment was performed. In May 2000, three (3) 10,000 - gallon USTs', and four (4) multiple product dispensers (MPDs) on a single dispenser island and associated product piping were removed as follows. ■ Tank #1 — 10,000 - Gallon Gasoline (Removed - May 9, 2000) ' ■ Tank #2 — 10,000 - Gallon Gasoline (Removed - May 9, 2000) ■ Tank #3 — 10,000 - Gallon Gasoline (Removed - May 9, 2000) Upon removal of the above tanks, two (2) additional 5,000 - gallon USTs were discovered to the east of the three 10,000 - gallon USTs. The two (2) 5,000- gallon USTs were abandoned in place in accordance with KCEHD guidelines and KCEHD permitting. ' ■ Tank #4 — 5,000 - Gallon Gasoline (Abandoned in place) ■ Tank #5 — 5,000 - Gallon Gasoline (Abandoned in place) At the time of tank removal, soil samples were collected from beneath the inverts at each end of the USTs. Soil samples were also collected beneath each MPD. Three (3) hand -auger soil borings (TK -4W, TK -5W, and TK -5E) were also slant - drilled beneath the inverts of the two (2) ' 5,000 - gallon newly discovered USTs, with soil samples collected at depths of 12 and 16 feet bgs in each boring. Elevated concentrations of adsorbed -phase Total Petroleum Hydrocarbons as gasoline (TPHg) and the volatile aromatic compounds of benzene, toluene, ethyl benzene and total xylenes (BTEX) were reported in soil samples at location TK -3E at depths of 14 and 18 feet bgs beneath the eastern end of the southern 10,000 - gallon gasoline UST, and in soil sample TK- 4W -16 which was collected at a depth of 16 feet bgs beneath the western end of the western 5,000 - gallon USTs. The maximum concentrations for TPHg and BTEX were reported at 1 location TK -5E at the eastern 5,000- gallon UST. Trace concentrations of benzene and the fuel oxygenate of methyl tertiary-butyl ether (MtBE) were reported in soil sample TK -3E -14 collected at a depth of 14 feet bgs beneath the eastern end of the southern 10,000 - gallon UST, but were reported as non - detect at the 1 &foot depth at that same location. TPHg, BTEX, and MtBE were reported as non - detect in the remaining twenty -three (23) soil samples analyzed. The fueling facilities were subsequently upgraded with a 20,000 - gallon double - walled, split chamber UST and two dual -sided MPDs on a single dispenser island. II E2C Remediation Proiect Number 1803BK26 January 12, 2009 1.3.1 Site Assessment Status Groundwater Monitoring Wells To date, five (5) groundwater monitoring wells have been installed, four (4) onsite (MW -1 through MW -4) and one (1) offsde (MW -5). See Figure 2 for the monitoring well locations. Vapor Extraction and Air Sparge Wells Three (3) double - completion (two separate screen intervals, shallow and deep) vapor extraction (VE) wells and one (1) deep completion VE well have been installed at the Site. Four (4) groundwater air sparge (AS) wells have also been installed. Vapor Extraction Pilot Test Conclusions A VE Pilot Test was conducted in March 2003. The site stratigraphy and lack of resistance to flow (0.4- to 1.45- inch H2O at different wells) suggested that this site was an ideal candidate for vapor extraction. The extremely high removal rates documented also suggested that this site had a significant soil and groundwater on -site source (i.e., area requiring remediation). It was calculated that the radius of influence for a full -scale remediation would be at a minimum 55 feet, and could exceed 70 feet. It was found that the use of well VE -3S tended to dilute the influent vapor stream and should only be used during the initial stages of remediation. Use of VE-11S and VE-1D yielded the highest influent concentrations, thus the focus of remediation would be at these two (2) wells after 100% of the well field became utilized. Note: VE-1S and VE-1D are located in the highest source area of soil and groundwater impaction. Therefore these wells would yield the highest removal rates. It was estimated that hydrocarbon removal rates initially could be greater than 1,000 Ibs /day, with a subsequent decrease as remedial operations progressed. Surrounding Area Well Survey Research of the surrounding area identified six (6) water supply wells and two (2) surface water bodies within a 2,500 -foot radius of the Site. I 2.0 GROUNDWATER MONITORING ' Depths to groundwater were measured and groundwater samples were collected from site monitoring wells as part of Third and Fourth Quarter 2008 monitoring events. The depths to groundwater were used to calculate groundwater elevations and interpret the groundwater flow I , direction and gradient. The groundwater samples were chemically analyzed to evaluate groundwater chemical conditions. ' 2.1 Third Quarter 2008 Groundwater Monitoring On July 15, 2008 E2C conducted Third Quarter 2008 groundwater monitoring and sampling at the Site. 2.1.1 Groundwater Elevation Monitoring Each well (MW -1 through MW -5), was evaluated, using a clear bailer, for the presence of free - product, and none was identified. The depth to groundwater was then measured at each well to the nearest one - hundredth (0.01) of a foot, using a Solinst water level indicator. Measurements were made at the north side of the top of casing. The Solinst water level indicator, and attached measuring tape, were washed in Alconox solution and were then double rinsed in clean potable water prior to use at each well. Depth to groundwater measurements are summarized in Table 1 A and with historical data in Table 3. II E2C Remediation PP1r iect Number 1803BK26 January 12, 2009 Based on the July 2008 measurements, the overall groundwater elevation increased an average of 3.84 feet in the Third Quarter 2008, as compared to the Second Quarter 2008 and groundwater flow was interpreted as southeasterly at a gradient of 0.031 ft/ft (see Figure 3A). The groundwater flow direction and gradient were consistent with historic interpreted flow directions and gradients. Note: Groundwater flow and gradient beneath the Site may be influenced by recharge from the nearby canal. The canal is unlined and parallels Union Avenue along its west side. Stream flow in the canal is southerly. 2.1.2 Groundwater Sampling Methods and Procedures Groundwater at all monitoring wells was purged using a battery- operated pump or a hand bailer. At least 3 casing volumes of groundwater was removed from each well prior to sampling. Casing volume is calculated by multiplying the height of the freestanding water column in the well by the cross-sectional area of the well casing. The temperature, pH and conductivity of the water were measured periodically as water was pumped from the wells to ensure sufficient purging, as indicated by stable measurements on field instruments. At each well, when measurements from the field instruments stabilized to within 10% of the previous measurement during purging, groundwater in the well was considered representative of the aquifer, a groundwater sample was collected. A purge data sheet for each well is included in Appendix A. Each groundwater sample was collected using a new disposable bailer. Liquid in the bailer was decanted into two 40- milliliter volatile organic analysis (VOA) vials. Each sample container was sealed using a tight fitting Teflon -lined screw cap. Care was taken so that no headspace or bubbles existed after sealing each VOA with the cap. All samples were labeled and documented on a chain of custody record immediately after sealing. After the documentation was complete, the samples were placed into an iced cooler maintained at 4° Centigrade for transport to the analytical laboratory. All downhole equipment was cleaned prior to use by washing with an Alconox solution and double rinsing clean potable water. 2.1.3 Recycling of Purge Water Groundwater sampling purge water was transported to Remedy Environmental Services of Bakersfield, California for recycling. Transport manifests and recycling certificates are presented in Appendix E. 2.1.4 Groundwater Analytical Services Groundwater samples were transported under Chain -of- Custody and were analyzed at ProVera Analytical Laboratories, Inc. (ProVera) (California State - Certified analytical laboratory #2606) in accordance with State guidelines and EPA protocols. The samples were analyzed for the following fuel hydrocarbons using the appropriate EPA Method: • BTEX using EPA Method 8260b; • The fuel oxygenates of MtBE, di- isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TBA) and tertiary-butyl alcohol (a.k.a. tert- butanol) (TBA) using EPA Method 8260b; • TPHg using EPA Method 8015M; and • The reporting limits for BTEX and the fuel oxygenates were 0.5 µg /L (TBA at 2.5 µg /L) and 50 µg /L for TPHg. E2C Remediation Proiect Number 1803BK26 January 12, 2009 2.1.5 Summary of Third Quarter 2008 Groundwater Analytical Data A summary of reported concentrations in groundwater samples follows: • Benzene was reported as non - detect in all wells (See Figure 4A); • TPHg was reported at one (1) well (MW -3), at a concentration of 11,100 gg /L (See Figure 5A).; • Toluene was reported at one (1) well, at a concentration of 1,370 µg /L at MW -3; • Ethylbenzene was reported at one (1) well, at a concentration of 145 ltg /L at MW -3; • Xylenes were reported at one (1) well, at a concentration of 593 µg/L at MW -3; and • MtBE, TBA, DIPE, EtBE, TAME, 1,2 -DCA and EDB were reported as non - detect in all groundwater samples cofiected this quarter. 2.1.6 Quality Control Samples The duplicate sample collected) from well MW -2 was reported to contain similar or identical concentrations of COCs as the primary sample from that well. The trip blank was reported as non - detect for any of the COCs at their respective detection limits, and the laboratory control samples all had recoveries within acceptable ranges. These results indicated that the analytical data are usable and are of adequate quality and reproducibility to satisfy data validity requirements. A copy of the analytical report for the Third Quarter 2008 is presented in Appendix B. 2.2 Fourth Quarter 2008 Groundwater Monitoring On October 22, 2008 E2C conducted Fourth Quarter 2008 groundwater monitoring and sampling at the Site. 2.2.1 Groundwater Elevation Monitoring Each well (MW -1 through MW -5) was evaluated as described in Section 2.1.1. Depth to groundwater measurements are summarized in Table 1B and with historical data in Table 3. Based on the October 2008 measurements, the overall groundwater elevation decreased an average of 2.49 feet in the Fourth Quarter 2008, as compared to the Third Quarter 2008 and groundwater flow was interpreted as southeasterly at a gradient of 0.028 ft/ft (see Figure 3B). The groundwater flow direction and gradient were consistent with historic interpreted flow directions and gradients. Note: Groundwater flow and gradient beneath the Site may be influenced by recharge from the nearby canal. The canal is unlined and parallels Union Avenue along its west side. Stream flow in the canal is southerly. 2.2.2 Groundwater Sampling Methods and Procedures Groundwater sampling methods and procedures are described in Section 2.1.2. A purge data sheet for each well is included in Appendix C. 2.2.3 Recycling of Purge Water Groundwater sampling purge water was transported to Remedy Environmental Services of Bakersfield, California for recycling. Transport manifests and recycling certificates are presented in Appendix E. 2.2.4 Groundwater Analytical Services Groundwater samples were transported under Chain -of- Custody and were analyzed at ProVera E2C Remediation 8 Proied Number 1803BK26 January 12. 2009 as described in Section 2.1 4. ' 2.2.5 Summary of Fourth Quarter 2008 Groundwater Analytical Data A summary of reported concentrations in groundwater samples follows: ■ Benzene was reported as non- detect in all wells (See Figure 4B); ■ TPHg was reported at one (1) well (MW -3), at a concentration of 1,300 µg /L (See Figure 5B); ' Toluene and ethylbenzene were reported as non - detect in all groundwater samples collected this quarter. • Xylenes were reported at one (1) well (MW -3), at a concentration of 8.93 µg /L; '• MtBE was reported at one (1) well (MW -3), at a concentration of 0.748 µg /L; ■ TBA was reported at one (1) well (MW -3), at a concentration of 23.4 gg /L; and • DIPE, EtBE, TAME, 1,2 -DCA and EDB were reported as non - detect in all groundwater samples collected this quarter. 2.2.6 Quality Control Samples ' The duplicate sample collected) from well MW -4 was reported to contain similar or identical concentrations of COCs as the primary sample from that well. The trip blank was reported as non - detect for any of the COCs at their respective detection limits, and the laboratory control ' samples all had recoveries within acceptable ranges. These results indicated that the analytical data are usable and are of adequate quality and reproducibility to satisfy data validity requirements. ' 2.3 Compliance with AB 2886 Groundwater analytical data for the Third and Fourth Quarters 2008 have been uploaded to the ' GeoTracker data base in accordance with State of California Assembly Bill 2886 (AB 2886). Groundwater elevation data have also been uploaded to the data base. Finally, a copy of this status report has also been uploaded to the data base. Appendix G contains copies of the available upload confirmation reports through the Fourth Quarter 2008. Any upload confirmation reports not included in this report will be included in the next quarterly status report. 2.4 Discussion of Groundwater Monitoring Data The groundwater flow direction and gradient in the Third and Fourth Quarters 2008 were consistent with interpreted historic flow directions and gradients. In the Third and Fourth Quarters 2008 dissolved -phase COCs were reported as non - detect at well MW -1. At the upgradient (somewhat cross - gradient) monitoring well (MW -4), fuel constituents of concern (COCs) benzene, toluene, ethylbenzene and xylenes (BTEX) and Total Petroleum Hydrocarbons as gasoline (TPHg) have been reported as non - detect for fifteen (15) consecutive quarters. Similarly, at MW -2, located downgradient and cross - gradient to the southwest, COCs have been reported as non - detect for seventeen (17) consecutive quarters. In July 2007, COCs rebounded slightly at MW -3, then showed a declining trend through April 2008 (see Table 3). In July 2008;, COCs rebounded at MW -3 possibly due to rising water levels (approximately 3.84 feet in the Third Quarter 2008). In October 2008, COCs decreased at MW -3 as water levels fell (approximately 2.49 feet in the Fourth Quarter 2008). The decrease in COC concentrations at MW -3 is also attributable to the operation of the remedial system E2C Remediation Project Number 1803BK26 January 12. 2009 which was restarted in August 2008. At the furthest downgradient well (MW -5), sporadic low concentrations of dissolved -phase COCs were reported prior to August 2005. Since that time, all COCs have been reported as non- detect at that well. This data indicates that remedial operations at the Site had been effective in reduction of `source' mass in the Source Area vadose zone and in reduction of dissolved -phase components in groundwater throughout the Site. Additionally, the moderate concentrations of COCs at MW -3 indicate that a groundwater `source' mass occurs in the area between MW -1 and MW -3; however, downgradient migration has not progressed any great distance, as COCs are non - detect at MW -5. Note: 1,2- Dichloroethane (1,2 -DCA) and 1,2- Dibromomethane (a.k.a. ethylene dibromide) (EDB), were reported as non - detect in groundwater at the Site since December 2004. The analysis for 1,2 -DCA and EDB were discontinued per the RWQCB letter dated December 21, 2006. Additionally, the five fuel oxygenates of methyl tertiary-butyl ether (MtBE), di- isopropyl ether (DIPE), ethyl tertiary- butyl) ether (ETBE), tertiary-amyl methyl ether (TAME) and tertiary- butyl alcohol (a.k.a. tert- butano4 (TBA) have been reported as non - detect at all wells since August 2005. The analysis for DIPE, ETBE, TAME and TBA were discontinued per the RWQCB letter dated August 18, 2008. 3.0 REMED/ATION STATUS REPORT During the period of April 9, 2004 through August 6, 2006, remedial operations at the Site were conducted using a combined vapor extraction/groundwater air sparging system (VE/GASS). The groundwater air sparging components performed two (2) functions: 1) increased dissolved oxygen in groundwater to enhance microbial degradation processes, and 2) mechanically stripped hydrocarbons (volatilization process). Upon volatilization, the hydrocarbons rose and were collected via the vapor extraction system. The vapor extraction system also removed hydrocarbons from the vadose zone. Extracted hydrocarbons were then routed in a vapor stream to a thermal treatment unit. Extraction of the hydrocarbons occurs via remediation wells consisting of three (3) multiple - completion vapor extraction (VE) wells (VE -1 D/1 S, VE- 2D /2S, and VE- 3D /3S)], one (1) deep ' completion VE well (VE -4), and four (4) air sparge wells (AS wells) plumbed to manifolds located in the onsite equipment compound. See Figure 2, Site Plan, for the location of the AS wells, VE wells and the onsite remediation equipment compound. ' In September 2003, the SJVAPCD issued the Permit to Operate (PTO) for the remedial equipment. On April 29, 2004, after the installation gas and electrical services by PG &E, the remediation system (utilizing a Baker Furnace 250 -CFM Thermal Oxidizer (BF 250) for effluent vapor treatment), was brought on line. On April 26, 2006, the system was switched over to Thermal /Catalytic mode for the treatment of effluent vapors. The system operated in Thermal /catalytic mode until August 20, 2006. The remediation system was to be modified to treat effluent vapors using granular activated carbon (GAC). However, the rebound of dissolved COC concentrations in 2007 precluded the efficient use of GAC at that time. A description of remedial systems operations is presented below. E2C Remediation 10 Proiect Number 1803BK26 January 12, 2009 3.1 Remedial System Operations — Thermal Oxidizer Mode For initial site remediation, E2C utilized the BF 250, which was designed to be modified in the field for use with a modular catalytic cell when fuel hydrocarbon concentrations declined and stabilized at or below 2,000 parts per million by volume (ppmV). The unit's minimum operating temperature in thermal mode was 1,400 deg. F, and its minimum operating temperature in catalytic mode was 600 deg. F. These temperatures were set to ensure cost effective vapor oxidation. The unit was equipped with a positive displacement (PD) vapor extraction blower. For improved reliability and safety, the valve controls, actuators, and components were controlled by a relay logic system. The unit was equipped with a water knockout pot, automatic air dilution, a noise - reducing muffler, and a blower sound reducing enclosure. This equipment was designed to shut down and lock out in the event of a system malfunction. The various safety features included sensors to detect high and low oxidizer bed temperatures, high and low blower pressure, high intake LEL, high and low air pressure, high and low exhaust temperature, and water knockout malfunction. The manufacturer's specifications for this remediation unit indicate that this unit has 99% (minimum) destruction efficiency. During remediation system operations, the remediation equipment was typically monitored on a weekly basis to perform routine maintenance, to record oxidizer parameters (temperature, flow rate and operating hours), to measure and document influent and effluent hydrocarbon concentrations and to optimize the wellfield. Although the oxidizer parameters were 1 continuously recorded digitally on a Zip disk, weekly monitoring of these parameters verified continued accuracy of the measuring devices. Hydrocarbon concentrations were measured with a portable hydrogen flame ionization detector (FID) and the data is used in applicable formulas to calculate hydrocarbon mass removal rates (on both a monthly and on a cumulative basis). Adjustments were contihually made to the configuration of the unit to maximize vapor flow from the wellfield, while maintaining the chamber temperature above 1,400 degrees Fahrenheit ( °F) (as required in the SJVAPCD permit) and keeping the chamber temperature below the manufacturer's recommended temperature limit of 1,850 OF in the stack. The wellfield was optimized on a weekly basis (i.e., control valves are opened and closed to achieve the highest influent concentration possible). Due to declining influent concentrations, E2C instituted a cycling program to promote fuel hydrocarbon rebound, which resuilted in improved efficiency in removal costs. E2C cycled the thermal unit off for the periods of October 31, 2005 through November 11, 2005 and November 28 through December 12, 2005. E2C continued to enhance rebound by cycling the thermal unit off from February 7, 2006 through March 6, 2006. It should be noted that as of July 2007, the rebound of dissolved. COC concentrations was sufficient to warrant restarting the existing remedial system. The RWQCB in verbal communication with E2C concurred with this conclusion. As such, E2C restarted the remedial system using thermal catalytic treatment on August 22, 2008. 3.2 Remedial System Operations - Thermal/Catalytic Mode In early March 2006, influent concentrations remained low even after numerous cyclic optimizing episodes. These low levels of extracted influent were not cost effective for continued use of the thermal unit. As such, E2C notified the SJVAPCD of the intention to convert the thermal unit to a thermal /catalytic unit. During the remainder of March 2006, and through most of April 2006, the thermal unit was cycled off and modified for thermal /catalytic operation, which commenced on April 20, 2006. The system was operated in. thermal /catalytic mode until August 2006 when it was found that influent concentrations had reduced to levels that E2C Remediation 11 1 Per _iect Number 1803BK26 January 12.2009 precluded' efficient continued use of the thermal /catalytic unit on a full -time run basis. Therefore, on August 2, 2006, the system was shut down pending an evaluation of the system efficiency and to determine if any modifications could be made to the system to enable more efficient operations. Prior to shutdown on August 2, 2006 the previous two (2) months of operational influent laboratory analytical data indicated influent concentrations that averaged approximately 500 ppmV, with an average flow of approximately 175 SCFM, which equated to a removal rate of approximately 24 to 33 Ibs /day (approximately 850 Ibs /month). Additionally, system cycling data indicated, that following periods of shutdown, influent concentrations were lower than pre - shutdown levels and on system restart after off - cycling periods, influent concentrations would initially be high, however would rapidly decline. Finally, it was found that costs to operate this system at these levels of influent were extremely disproportionate per pound of hydrocarbon removal and did not match up to cost per pound of removal as indicated at other nearby sites undergoing remediation. The utility costs (electricity and natural gas) necessary to operate that system averaged $6,000.00 per month, which equated to approximately $38.00 per gallon of fuel removed. As these energy costs seemed extraordinarily high, E2C contacted PG &E on two (2) occasions to have PG &E verify these seemingly excessive costs and to verify that their lines were not leaking. After extensive conversations with PG &E, PG &E affirmed that there were no leaks in their lines and that their invoices were properly billed. E2C also performed extensive testing to verify that there were no leaks in the site remedial system plumbing and the BF 250 and associated equipment. None were found. Based on the above data, continued full -time use of the BF 250 in thermal /catalytic mode was deemed infeasible. E2C then performed an evaluation to see if an electrical/catalytic oxidizer unit could be utilized, which would eliminate the supplemental fuel costs, thus making the remedial operation more efficient and more cost effective. Based on the influent concentrations over the last few months of BF 250 operations, the concentrations were at the low end of the range needed for efficient use of an electric /catalytic (ECAT) oxidizer. At the time it appeared the expense necessary to meet the permitting requirements for the ECAT would not be justified by the limited ECAT run time that could be expected prior to modification of the remedial system to a granular activated carbon system (GAC) absorption system, which would be used near the end of remedial operations to polish residual fuel hydrocarbons. Although, it was found that carbon change -outs would occur frequently during the initial stages of GAC operations, a GAC remedial system would be substantially more cost effective than operation of either the BF 250 or the ECAT. However, as of July 2007, the rebound of dissolved COC concentrations was sufficient to warrant restarting the existing remedial system using the catalytic treatment mode. E2C restarted the remedial system using thermal catalytic treatment on August 22, 2008. 3.3 Proposed Remediation System Modifications using Granular Activated Carbon In E2C's report Fourth Quarter 2006 Groundwater Monitoring and Remediation Status Reports, dated January 18, 2007, it was recommended that the existing remediation system be modified to operate using GAC for effluent control. The RWQCB, with their letter dated April 13, 2007, approved the request for modification of the system. A brief description of proposed modifications to the remediation system is presented below. Note: It should be noted that dissolved COC have rebounded to high enough concentrations that the efficient use of GAC is E2C Remediation 12 Proied Number 11103BK26 January 12. 2009 not � p ossible at this time. Based on current dissolved COC concentrations operation of the P remedial system using thermal catalytic treatment is the most appropriate measure until ' dissolved COC concentrations once again decrease. However, the discussion presented below is applicable to the time when dissolved COC concentrations are again low enough to warrant the proposed use of GAC. ' VE/GAC The proposed new emissions control unit will consist of a vapor phase granular activated carbon treatment unit (see Figure 7 for VE /AS /GAC Process Flow Diagram). The equipment is skid mounted and consists of an entrainment liquid separator, float switches and entrainment water pump, electrical control panel with main power switch and hour meter, vacuum pump and motor, two (2) 1,000 lb. carbon canisters in series filled with granulated activated carbon, one (1) 1,000 lb. carbon canister held in reserve, direct read flow meter, influent and effluent sampling ports for each carbon canister. The units are designed to achieve 100% adsorption efficiency. The calculated removal rate at startup, based on a flow rate of 140 scfm and influent concentration of 600 ppmV, is 27.pounds per day. Influent concentrations are likely to be much lower at the time that GAC is actually utilized for vapor treatment. E2C will operate and monitor the GAC system in accordance with the conditions stipulated in a (SJVAPCD) PTO to verify that emissions are within the permitted limits. It is anticipated that the remediation system will be restarted after a modified PTO is received from the SJVAPCD and after the carbon vessels are installed at the Site. Carbon Change -Out Based on the removal rate of 27 pounds per day, the initial calculated carbon utilization rate is 135 to 189 pounds per day. This calculation is based on an approximate carbon utilization rate of 5 to 7 pounds of 5/8 — inch coconut -shell vapor phase carbon per pound of hydrocarbon. This is calculated from carbon isotherms. Projected breakthrough of the first 1,000 -pound carbon canister is, therefore, between 5.3 and 7.4 days (10.6 to 14.8 days for 2,000 Ibs). As such, it is estimated that carbon (2,000 Ibs) will require changing twenty -four (24) times in a one -year period, which is not an efficient or cost effective use of GAC. The estimated GAC usage will be re- calculated at the time GAC is actually utilized. As influent concentrations are expected to be much lower at that time, daily removal rates will also be much lower, thereby extending GAC usage time. Carbon usage can also be extended by reducing influent flow rates. 3.3.1 Air Sparge Compressor Groundwater air sparging was and will be conducted via an Ingersol -Rand 10 -hp air compressor. Needle valve flow controllers, which are set in an air sparge manifold at the equipment compound, control the airflow to the microporous sparge points set at the bottom of the AS wells. Flow of air is optimized during each weekly site visit so that the maximum air pressure available is introduced evenly to all AS wells and into the groundwater. 3.4 Compliance with SJVAPCD Permit To Operate Ongoing San Joaquin Valley Air Pollution Control District (SJVAPCD) Permit To Operate (PTO) compliance has been demonstrated during regular Site visits by measuring the VOC concentrations in the influent and effluent streams using a PID or FID and collection and chemical analyses of Tedlar@ bag samples. Based on TedlarO bag data from January 2005 until August 2006 and in August and September 2008, the system destruction has averaged ' 99.99% (see Tables 6 and 7 for summaries of Tedlar® bag influent and effluent laboratory E2C Remediation 13 Project Number 1803BK26 January 12. 2009 data), which meets PTO conditions. Analytical reports of influent and effluent vapors from August and September 2008 are presented in Appendix F. Field records, including sampling) results, cumulative runtime, flow rate and catalytic oxidizer temperature, were and will be maintained and retained for a minimum of two (2) years. System operation temperature was maintained at a minimum of 1,400 degrees Fahrenheit ( °F) in the combustion chamber of the thermal oxidizer through March 7, 2006. On March 7, 2006, E2C, submitted a Vapor Extraction System Modification Notification (PTO # S- 4205 -1 -0) to the SJVAPCD. E2C notified the SJVUAPCD that the BF 250 unit would be modified to operate in thermallcatalytic mode due to decreasing influent concentrations at the site. The modified unit incorporated a catalytic cell and the minimum operating temperature for the combustion chamber of the thermal /catalytic oxidizer was maintained at or above 600 degrees Fahrenheit. On April 20, 2006, thermal /catalytic operations commenced and were terminated on August 2, 2006. If the remedial system is ultimately modified to use GAC for the treatment of effluent vapors, an application will be made to the SJVUAPCD to modify the existing PTO to meet the requirements of the SJVAPCD. 3.5. Fuel Hydrocarbon Mass Removal Rates The first method to calculate mass removal rates uses a straight -line extrapolation of influent measurements based on actual hourly run -time. Based on this method, the mass of fuel hydrocarbons removed from startup through August 2, 2006 and from August 22 to December 1, 2008 can be calculated at approximately 175,773 Ibs (see Table 4A). The second method to calculate mass removal uses the average influent concentrations over the average daily run- time per month. Based on this method, the total mass of fuel hydrocarbons removed from startup through the August 2, 2006 and from August 22 to December 1, 2008 can be calculated at approximately 182,949 Ibs (see Table 5). The average of the above two (2) methods (179,361.lbs) provides a conservative estimate of the total mass removed. 3.6 Discussion of Remedial Efficiency VE /GASS operational data indicated that influent concentrations to the system declined to a point that did not justify operating the thermal /catalytic unit in the continuous mode. After restart of the thermal/catalytic unit on April 20, 2006, the influent concentrations, based on Tedlar® bag data, declined to less than 1,000 ppmV, even in the cycling operational mode. E2C conducted several cycling events of varying duration, and influent concentrations failed to rebound, as follows: ■ 10/31/05 (Influent = 2,350 ppmV) to 11/11/05 (Influent = 1,850 ppmV); ■ 11/28/05 (Influent = 1,589 ppmV) to 12/12/05 (Influent = 1,825 - declined to 1,000 ppmV); and ■ 2/7106 (Influent = 2,850 ppmV) to 3/3/06 (Influent = 4,450 ppmV — declined to 512 ppmV) The declining influent concentration combined with the excessive energy costs indicated that use of an oxidizer unit was no longer efficient, or cost effective for the Site. On August 25 and September 22, 2008, influent concentrations were reported at 713 ppmv and 640 ppmv, respectively, which is still less than 1,000 ppmv. However, at this time, the remaining concentrations are too high to warrant the efficient use of GAC. E2C Remediation 14 Proiect Number 1803BK26 January 12. 2009 4.0 CONCLUSIONS Based on the site assessment work, groundwater monitoring data and remedial operational data obtained at the Site to date, E2C concludes the following: ■ The average groundwater elevations beneath the Site increased an average of 3.84 feet in the Third Quarter 2008. The average groundwater elevations beneath the Site decreased an average of 2.49 feet in the Fourth Quarter 2008. The groundwater flow directions were southeasterly, which were consistent with historic groundwater flow directions and gradients; ■ Remedial operations (using the VE/GASS) at the Site have been effective in removing fuel hydrocarbons from the subsurface and in controlling migration of the groundwater fuel hydrocarbon plume, evidenced by COCs being reported as non - detect for a minimum of ten (10) quarters at MW -2 and MW -5. Note: Prior to that, only sporadic low concentrations of COCs were reported and MtBE, DIPE, ETBE, TAME and TBA have ' not been reported since the August 24, 2005 sampling event; ■ Fuel hydrocarbon concentrations (BTEX and TPHg) in groundwater had shown significant reductions across the Site since startup of the remediation system. However, 1 rebound in dissolved fuel hydrocarbon concentrations occurred in the Third quarter 2008 in the area of well MW -3; and ■ Fuel hydrocarbon mass removed, through August 2, 2006 and from August 22 through December 1, 2008, was calculated as approximately 179,361 Ibs, or approximately 28,025 gallons. 5.0 RECOMMENDATIONS E2C makes the following conclusions based on the above conclusions and the data presented in this report: ■ Continue to monitor and sample groundwater at the Site on a quarterly basis; • Analyze groundwater samples for BTEX and MtBE using EPA Method 8260b. The RWQCB concurred with this recommendation in the their letter dated August 18, 2008; • Continue to operate the remedial system using a thermal catalytic treatment method; and • Continue to submit groundwater monitoring reports and remediation status reports to the Client, the RWQCB and the BFD on a quarterly basis. E2C Remediation 15 t Project Number 1803BK26 January 12, 2009 6.0 LIMITATIONS AND REPORT CERTIFICATION E2C performed this investigation in accordance with the generally accepted standards of care existing in California at this time. It should be recognized that definition and evaluation of geologic conditions is a difficult and inexact science. Judgments leading to conclusions and recommendations are generally made with limited knowledge of subsurface conditions present. No warranty, expressed or implied, is made. This report has been prepared by E2C under the professional supervision of the registered professional whose seal and signature appear herein. The conclusions of this report are based solely on the Scope of Services outlined and the sources of information referenced in this report. Any additional information that becomes available concerning the Site should be submitted to E2C so that our conclusions may be reviewed and modified, if necessary. This report was prepared for the sole use of Mr. Nassri Jaber and/or agent(s), the RWQCB, and the BFD. Prepared By: rr w DANIEL J. HIDAtg0 NO. 858 Daniel Hidalgo Senior Hydrogeotogist FOF CALi4{ C.H.C. 0659 Reg. Ex. 6 -30 -09 IReviewed By: 1 1 r .G. #4779 Principal Geologist / W� NAL Ol G04� op� % ;$r 4779 ;$r E2C Remediation 16 Project Number 1803BK26 January 12, 2009 FIGURES Figure 1 Site Location flap Figure 2 Site Plan Figure 3A Third Quarter 2008 Groundwater Gradient Plot Figure 3B Fourth Quarter 2008 Groundwater Gradient Plot Figure 4A Third Quarter 2008 Benzene Distribution Plot Figure 4B Fourth Quarter 2008 Benzene Distribution Plot Figure 5A Third Quarter 2008 TPHg Distribution Plot Figure 5B Fourth Quarter 2008 TPHg Distribution Plot Figure 6 Groundwater MtBE Concentration Trends Figure 7 VE /AS /GAC Process Flow Diagram E2C Remediation Figures i 01):_11 JDDIOf)P J.__; r. ri L ' ` "� _�;:•::. LBO:_ ...., .. law..\ i . s i, ' ;[:J1f:7 `._.I`L,� __.I L. �';_I'L nil; -ij)FI rr.-�'''�.. �• .` ._ ,.r:'I1:ll�.lt��i��e,i� /i.0 +: : ❑r..; I[';L_J�...II � f11.:lii�J4�i JL,DJ E-il- -fir 7�2 WAX AS -1 VE -2S -2D UST MW-4 MW -1 VE -1S -1D M Q� Fuel Dispensers Remediation AS -2 Equipment ® Compound VE -3S-3D I I MW -2 is f- 0 z M z C M 0 M z r� r Z M 0 1 40 FT i SCALE A&3 MW-3 AS-4 VE-4 PACIFIC STREET MINIT STOP MARKET EZC Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA s Bakersfield, CA 93313 hone: (661) 831 -6906 SITE PLOT 2 Fax: 661) 831 -6234 LEGEND MW -1 Groundwater Monitoring Well Location AS -1 M Air Sparge Well Location VE Vapor Extraction Well Location A&3 MW-3 AS-4 VE-4 PACIFIC STREET MINIT STOP MARKET EZC Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA s Bakersfield, CA 93313 hone: (661) 831 -6906 SITE PLOT 2 Fax: 661) 831 -6234 C z 0 z M z M 0 M z M 0 40 FT SCALE VE -2S -2D U$T / MW-4 7.83 / 6.96 MW -1 / VE -1SAD� � Fuel / Dispensers // Remediation AS -2 Equipment ® 100 Compound ♦ VE3S -3D M i ? � l is MW-2 6.94 �t MW-3 AS-4 VU 4 N AS -3 5.70 / �p0 .* \ ♦ PACIFIC STREET ♦ Z ♦ q 00 n c / ^gyp / ADO mkt d Z �' O MW -1 LEGEND Groundwater Monitoring Well Location with Groundwater Elevation in Feet Above Mean 7.83 Sea Level (MSL) Groundwater Elevation Contour -g ,p moo` in Feet Above MS (dashed wherc 0.46 approximate, queried where unknown) AS -1 M Air Sparge Well Location VE Vapor Extraction Well Location MINIT STOP MARKET E2C Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA Bakersfield, CA 93313 06 Phone' (661) 831 -69 THIRD QUARTER 2008 3A GROUNDWATER GRADIENT PLOT Fax: (661) 831 -6234 C z 0 z M z M n M z m 0 40 FT SCALE AS -1 VE -2S -21) M F UST MW-4 5.18 4.59 MW -1 VE- 1S -1DM Z n Fuel Dispensers /Remediation AS -2 / / Equipment ® / Compound VE-3S -3D M / b, .'d MW-2 .,., 4.15 MW-3 AS-4 VE-4 AS -3 a - 3.19 R / PAC�WC STREET — ,yOvv Z� o0 7� 1c°'f c m �R �a y 0• � Z� MW -1 LEGEND Groundwater Monitoring Well Location with Groundwater Elevation In Feet Above Mean 5.18 Sea Level (MSL) -5 Groundwater Elevation Contour. Q y in Feet Above MSL (dashed where N approximate, queried where -1.67 unknown) AS -1 M Air Sparge Well Location VE Vapor Extraction Well Location MINIT STOP MARKET E,C Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA Bakersfield, CA 93313 Pa h 831 06 FOURTH QUARTER 2008 3B on e: (661) -6906 GROUNDWATER GRADIENT PLOT Fax: 661 831 -6234 VE -2S -2D M UST MW-4 ND MW -1 VEAS-1DI♦ ij� Fuel ND Dispensers Remediation AS -2 Equipment ® Compound VE -3S -3D MW -2 ND AS-3 MW -3 AS-4 VE-4 Q!h, M M ND PACIFIC STREET I c z O MINIT STOP MARKET E2C Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA Bakersfield, CA 93313 Phone: (66 ) 831 -6906 THIRD QUARTER 2008 4A Fax: (661) 831 -6234 BENZENE DISTRIBUTION PLOT I I AS -1 i♦ VE -2S -2D UST MW-4 ND MW -1 VEA S -1 D 111111111 Q� Fuel ND Dispensers Remediation AS -2 Equipment ® Compound VE -3S-3D MW -2 ND AS-3 MW-3 AS-4 VE-4 ND C Z 0 Z G M Z C M n M Z M M r Z M 0 40 FT SCALE / 1 I FrFND MW -3 Groundwater Monitoring Well Location with Benzene Concentration in Micrograms 33 per Liter (ug /L) AS -1 M Air Sparge Well Location VE M Vapor Extraction Well Location ND Benzene Not Detected PACIFIC STREET MINIT STOP MARKET EC RemediatiOn 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA Z�akersfield, CA 93313 Phone 661) 831 -6906 FOURTH QUARTER 2008 4g Fax: (661) 831 -6234 BENZENE DISTRIBUTION PLOT I C z 0 M1 VE -2S -213 M UST MW -1 VE- 1SADI♦ ij?� Fuel ND Dispensers AS -2 VE -3S -3D M MW -2 � I ND ' AS-3 MW-3 11,100 MW-4 ND Remediation Equipment Compound roximate Limit of TPHg Plume I A$4 VE-4 M 0#- PACIFIC STREET MINIT STOP MARKET E2C Remediation 2900 NORTH UNION AVE FIGURE 5300 Woo mere Dr., Suite 105 BAKERSFIELD, CALIFORNIA ,. Bakersfield, CA 93313 �-- Phone: 831 -6906 THIRD QUARTER 2008 5A Fax: (661) 831 -6234 TPHg DISTRIBUTION PLOT AS- 1 0 VE -2S -2D M UST MW -1 VE- 1S -1DM IZ Fuel ND Dispensers AS -2 VE3S -30 M / MW -2 ND 1 AS-3 MW -3 • 1 1,300 C z 0 z M z C M n M z r� r z M 0 ' 40 FT SCALE MW-4 ND Remediation Equipment Compound Approximate Limit of TPHg Plume *S4 VE-4 / PACIFIC STREET MINIT STOP MARKET EZC Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA Bakersfield, CA 93313 FOURTH QUARTER 2008 Phone (661) 831 -6906 TPHg DISTRIBUTION PLOT 513 Fax: 661 831 -6234 i ErIE MW -1 . Groundwater Monitoring Well Location with TPHg Concentration in Micrograms 427 per Liter (ug /L) AS -1 M Air Sparge Well Location VE M Vapor Extraction Well Location AND TPHg Not Detected MW-4 ND Remediation Equipment Compound Approximate Limit of TPHg Plume *S4 VE-4 / PACIFIC STREET MINIT STOP MARKET EZC Remediation 2900 NORTH UNION AVE FIGURE 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA Bakersfield, CA 93313 FOURTH QUARTER 2008 Phone (661) 831 -6906 TPHg DISTRIBUTION PLOT 513 Fax: 661 831 -6234 Project Number 1803BK26 80,000 70,000 60,000 J 6 50,000 N C 40,000 L. M v p 30,000 V 20,000 , I M January 12, 2009 FIGURE 6 GROUNDWATER MtBE CONCENTRATION TRENDS I I I I I I I I I I i I I I I I I I I I I I 1 I I 1 I I I I 1 I I I I I I I I I I 1 I I I I I I I I I I I I I 1 I 1 I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I MW -1 f 1 I I I I I 1 I I I I 1 -0--MW-2 1 I I I I I I I I I I I I I I I I I I 1 I 1 I I I -�— MW -3 I I I I I I I 1 I I I I 1 I I I I I I I I I 1 I I I I I I 1 I I 1 I -- - -- ------- - - - -I- - ----- �'I!ART;REIV�EDil�iTICSN - - -i -- - - -I ----------- ,- - -i - -- - -- - -- - - -i - - -i - - -i - - - I �wy���Q%%/n��w 1 [ 1 1 i �t I f I 1 f 1 f I 1 I I I I I An9 04 I I I I 1 1. I I I I I I I I I 1 1 I 1 I I I I I i I I 1 1 I I I I I I 1 I I I I I 1 I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I 1 I I I I I I I 1 I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I i I I I I I I I I I I I I I I I I I I 1 I I I 1 I I I I I 1 I I I I I I 1 I I I I I I I I I I I I 1 I 1 ___1 I I I I I I I I ___I -___ __ ____ I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 1 I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I 1 I I I I I I I I I I 1 I I I I I I I --- r--- r--- r - - -I -- - I - - -�- -� -- r--- Y--- t--- r--- r--- r--- r--- r--- I---- I--- �--- �---- I--- 7--- -r--- r--- r- - -r - -- I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I 1 I 1 I I I I I 1 I I I I I I I I I I I I I I I I 1 I 1 I I I I I I I I I I I I I I I I I 1 I I I I 1 1 I 1 I I I I I I I I I I J _ _ _ J - _ _ 1 _ _ _ 1 _ _ _ 1 _ _ _ L _ _ _ L _ _ - L _ _ _ L _ _ _I_ _ _ _I_ _ _ J _ _ _ J _ _ _ J _ _ _ J _ _ _ 1 _ _ _ 1 _ _ _ L _ _ _ L - - _ L I 1 I I I I I I I I I I I I I 1 1 I 1 I I 1 I I I I I I I I I I I I 1 I I 1 I I I 1 I 1 1 I 1 I I I I I I 1 I I I I I I I 1 I I ___I____I____I___,_ -_T_ T___T___T- _- r___r___r___r 1 __ 1--__ 1__-_ 1_- _,I- __T___T_- _T___r___r___ I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I 1 I I I 1 I I i I I I I I I I I I I I I 1 I I I I I 1 I 1 1 I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I f I I I I I I I f I 1 1 I 1 1 I I 1 1 1 I 1 I I � �- I _ I I♦ I I I I I I 1 I 1 I I I I I I I pti oti & o`) (Z`) Ao o`5 cp o° o� A°` 0 0 0 0 d° 06 d° d° 6 o� A� o� o0 0� o0 0% ,0 PJ�; cow �e ��� yz o, `, �m� �a� Pao, �o� ��� 40 0 �o 0,0 0, VO �o 0 0' VO -<Z'� 0 vo �o Month -Year E2 Remediation Figure 6 i� i� a• it m m m m m m m m m mm SVE WELLS (4 wells) AID QDAOr_c %A/17I i c SVE MANIFOLD ,(VAPOR MANIFOLD) GAC SYSTEM (2, 1,0004b vapor phase canisters) LE PORTS Reserve Canister 0 UENT :OUT POT • EC Remediation 5300 Woodmere Dr., Suite 105 MINIT STOP MARKET 2900 NORTH UNION AVE FIGURE Bakersfield, CA 93313 BAKERSFIELD, CALIFORNIA Phone: (661) 831 -6906 7 Fax: (661) 831 -6234 VE/AS /GAC PROCESS FLOW DIAGRAM Proiect Number 1803BK26 January 12, 2009 TABLES Table 1 A Summary of Third Quarter 2008 Groundwater Monitoring Data Table 1 B Summary of Fourth Quarter 2008 Groundwater Monitoring Data Table 2 Summary of Historical Groundwater Elevation Data Table 3 Summary of Historical Groundwater Analytical Data Table 4 Summary of VE /GASS Monitoring Data Table 5 Summary of Hydrocarbon Mass Removed Table 6 Summary of Influent Vapor Analytical Data Table 7 Summary of Eff luent Vapor Analytical Data E2C Remediation Tables M M M M M i M M M M M M M M M M M M M Project Number 1803BK26 January 12, 2009 Ez C Remediation Table 1A -1 TABLE 1A SUMMARY OF THIRD QUARTER 2008 GROUNDWATER MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California July 15, 2008 TOC Elevation Depth to Water GW Elevation B I T I E I X I TPHg I MtBE I TBA I DIPE I ETBE I TAME 1;2 -DCA EDB Well ID u L feet MSL feet BTOC feet MSL MW -1 123.15 115.32 7.83 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 MW -2 121.86 114.92 6.94 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 duplicate Labeled MW - 6 on COC nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 MW -3 122.29 116.59_ 5.70 nd <0.5 1,370 145 593 11,100 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 123.25 116.29 6.96 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 _MW-4 MW -5 - -- 121.,84 121.36 0.46 nd <0,5 nd <0,5 I nd <0,5 nd<0,51 n.d <50 nd <0,5 nd <2.5nd<0.5 nd<0.5 nd <0.5 nd <0,5 nd<0,5 Notes: 1,2 -DCA= 1,2- Dichloroethane B = Benzene BTOC = Below top of casing DIPE = Di- isopropyl Ether E = Ethylbenzene EDB = Ethylene Dibromide (a.k.a. Dibromo Methane) ETBE = Ethyl tertiary-butyl Ether GW = Groundwater LEAD = Dissolved Lead MtBE = Methyl tertiary-Butyl Ether na = Not analyzed nd = Not detected at or above the Method Detection Limit, which is indicated by number. = Toluene TAME = Tertiary-Amyl Methyl Ether BA Tertiary-Butyl Ether (a.k.a tert- butanol) OC = Top of casing PHg = Total Petroleum Hydrocarbons as gasoline ug/kg = micrograms per liter X = Total xylenes Sample MW -6 on chain-of-custody is duplicate of MW -2. Ez C Remediation Table 1A -1 1=1 M� M M r IM M M M M M M M M IM � M M Project Number 1803BK26 January 12, 2009 EZCRemediation Table 1B -1 TABLE 1 B SUMMARY OF FOURTH QUARTER 2008 GROUNDWATER MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California October 27, 2008 TOC Elevation Depth to Water GW Elevation B T E X TPH MtBE TBA DIPE ETBE TAME 1,2 -DCA EDB Well ID u feet MSL feet BTOC feet MSL MW -1 123.15 117.97 5.18 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd<0.5 nd<2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 MW -2 121.86 117.71 4.15 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 1,300 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 MW -3 122.29 119.10 _ 3.19 nd <0.5 nd <0.5 nd <0.5 8.93 0.748 23.4 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 MW -4 123.25 1 118.66 1 4.59 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 duplicate Labeled MW - 6 on COC nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 MW -5 121, @4 123,51 -1,67 1 nd <0,5 nd <0,5 nd <0,5 I nd <0.5 nd <50 nd <0.5 nd <2,5 nd<0.5 I nd <0,5 I nd <0.5 nd <0.5 1 nd <0.5 Notes: 1,2 -DCA = 1,2- Dichloroethane B= Benzene STOC = Below top of casing DIPE = Di- isopropyl Ether E = Ethylbenzene EDB = Ethylene Dibromide (a.k.a. Dibromo Methane) ETBE = Ethyl tertiary-butyl Ether GW = Groundwater LEAD = Dissolved Lead MtBE = Methyl tertiary-Butyl Ether na = Not analyzed nd = Not detected at or above the Method Detection Limit, which is indicated by number. = Toluene TAME = Tertiary-Amyl Methyl Ether BA = Tertiary-Butyl Ether (a.k.a tert- butanol) OC = Top of casing PHg = Total Petroleum Hydrocarbons as gasoline ugfkg = micrograms per liter X = Total xylenes Sam le MW -6 on chain-of -custody is duplicate of MW -4. EZCRemediation Table 1B -1 Project Number 1803BK26 January 12, 2009 TABLE 2 SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California WELL ID DATE TOTAL DEPTH (feet BTOC) DEPTH TO GW (feet BTOC) TOC ELEVATION (feet MSL) GW ELEVATION (feet MSL) GW ELEVATION CHANGE (feet) Mw-1 4/19/02 135.44 117.68 Sp 5/23/02 137.00 117.70 -0.02 8/15/02 135.37 114.98 2.72 12/9/02 135.32 118.22 -3.24 2/28/03 135.50 121.10 199.91 78.81 -2.88 6/5/03 137.00 119.15 80.76 1.95 10/10/03 135.50 113.93 85.98 5.22 12/9/03 135.45 115.82 84.09 -1.89 3/30/04 135.50 119.64 80.27 -3.82 6/14/04 135.50 11 6.87 83.04 2.77 9/3/04 135.50 113.50 123.15 9.65 .3.37 12/10/04 135.45 116.39 6.76 -2.89 3/16/05 135.45 119.20 3.95 -2.81 5/31/05 135.45 116.77 6.38 2.43 8/24/05 135.45 111.93 11.22 4.84 11/8/05 135.45 113.25 9.90 -1.32 217/06 135.45 117.75 5.40 -4.50 5/5/06 135.45 117.60 5.55 0.15 8/11/06 135.45 112.62 10.53 4.98 10/30/06 135.45 113.60 9.55 -0.98 1/16/07 135.45 115.72 7.43 -2.12 4/19/07 135.45 115.76 7.39 -0.04 7/17/07 135.45 112.54 10.61 322 10/16/07 135.45 112.06 11.09 0.48 1/17/08 135.45 117.04 6.11 -4.98 4/19/08 135.45 119.50 3.65 -2.46 7/15/08 134.45 115.32 7.83 4.18 10/27/08 134.45 117.97 5.18 E2 C Remediation Table 2 -1 IProject Number 1803BK26 January 12, 2009 TABLE 2 SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California WELL ID DATE TOTAL DEPTH (feet BTOC) DEPTH TO GW (feet BTOC) TOC ELEVATION (feet MSL) GW ELEVATION (feet MSL) GW ELEVATION CHANGE (feet) MW -2 2/28/03 134.80 120.50 198.42 77.92 6/5/03 134.66 118.60 79.82 1.90 10/10/03 135.50 113.50 84.92 5.10 12/9/03 135.74 115.20 83.22 -1.70 3/30/04 135.50 118.96 79.46 -3.76 6/14/04 135.50 116.31 82.11 2.65 9/3/04 135.50 112.98 121.86 8.88. 3.33 12/10/04 135.74 116.00 5.86 -3.02 3/16/05 135.74 118.76 3.10 -2.76 5/31/05 135.75 116.18 5.68 2.58 8/24/05 135.75 111.28 10.58 4.90 11/8/05 135.75 112.81 9.05 -1.53 2/7/06 135.75 116.80 5.06 -3.99 5/5/06 135.75 117.08 4.78 -0.28 8/11/06 135.75 112.08 9.78 5.00 10/30/06 135.75 113.18 8.68 -1.10 1/16/07 135.75 115.33 6.53 -2.15 4/19/07 135.75 115.25 6.61 0.08 7/17/07 1 135.75 112.02 9.84 3.23 10/16/07 135.75 111.66 10.20 0.36 1/17/08 135.75 116.65 5.21 -4.99 4/19/08 135.75 119.07 2.79 -2.42 7/15/08 135.75 114.92 6.94 4.15 10/27/08 135.75. 117.71 4.15 -2.79 E2 C Remediation Table 2 -2 IProject Number 1803BK26 Janua ry 12, 2009 TABLE 2 SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California WELL ID DATE TOTAL DEPTH (feet BTOC) DEPTH TO GW (feet BTOC) TOC ELEVATION (feet MSL) GW ELEVATION (feet MSL) GW ELEVATION CHANGE (feet) MW -3 2/28/03 134.90 121.76 199.01 77.25 6/5/03 134.85 120.08 78.93 1.68 10/10/03 134.90 115.09 83.92 4.99 12/9/03 134.85 116.62 82.39 -1.53 3/30/04 134.90 120.25 78.76 -3.63 6/14/04 134.90 117.94 81.07 2.31 9/3/04 134.90 115.08 122.29 7.21 2.86 12/10/04 134.85 117.41 4.88 -2.33 3/16/05 134.85 120.10 2.19 -2.69 5/31/05 134.85 118.95 3.34 1.15 8/24/05 134.85 112.94 9.35 6.01 11/8/05 134.85 114.35 7.94 -1.41 2/7/06 134.85 116.85 5.44 -2.50 5/5/06 134.85 117.75 4.54 -0.90 8/11/06 134.85 113.80 8.49 3.95 10/30/06 134.85 114.64 7.65 -0.84 1/16/07 134.85 116.66 5.63 -2.02 4/19/07 134.85 116.73 5.56 -0.07 7/17/07 134.85 113.66 8.63 3.07 10/16/07 134.85 113.13 9.16 0.53 1/17/08 134.85 117.91 4.38 -4.78 4/19/08 134.85 120.46 1.83 -2.55 7/15/08 134.85 116.59 5.70 3.87 10/27/08 134.85 119.10 3.19 -2.51 IE2 C Remediation Table 2 -3 Project Number 1803BK26 January 12, 2009 TABLE 2 SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California WELL ID DATE TOTAL DEPTH (feet BTOC) DEPTH TO GW (feet BTOC) TOC ELEVATION (feet MSL) GW ELEVATION (feet MSL) GW ELEVATION CHANGE (feet) MW -4 2/28/03 135.00 121.40 200.00 78.60 6/5/03 136.21 120.02 79.98 1.38 10/10/03 136.20 114.80 85.20 5.22 12/9/03 135.05 116.25 83.75 -1.45 3/30/04 136.20 120.00 80.00 -3.75 6/14/04 136.20 118.05 81.95 1.95 9/3/04 136.20 114.36 123.25 8.89 3.69 12/10/04 135.05 117.00 6.25 -2.64 3/16/05 135.05 119.80 3.45 -2.80 5/31/05 135.05 117.65 5.60 2.15 8/24/05 135.00 112.88 10.37 4.77 11/8/05 135.00 113.98 9.27 -1.10 2/7/06 135.00 117.80 5.45 -3.82 5/5/06 135.00 117.96 5.29 -0.16 8/11/06 135.00 113.62 9.63 4.34 10/30/06 135.00 114.32 8.93 -0.70 1/16/07 135.00 116.35 6.90 -2.03 4/19/07 135.00 115.56 7.69 0.79 7/17/07 135.00 113.48 9.77 2.08 10/16/07 135.05 112.80 10.45 0.68 1/17/08 135.05 117.50 5.75 -4.70 4/19/08 135.05 120.16 3.09 -2.66 7/15/08 135.05 116.29 6.96 3.87 10/27/08 135.05 118.66 4.59 -2.37 E2 C Remediation Table 2 -4 IProject Number 1803BK26 Janua ry 12, 2009 E2 C Remediation Table 2 -5 TABLE 2 SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California TOTAL DEPTH TOC GW GW ELEVATION WELL ID DATE DEPTH TO GW ELEVATION ELEVATION CHANGE (feet BTOC) (feet BTOC) (feet MSL) (feet MSL) (feet) 10/10/03 135.05 119.90 12/9/03 135.03 121.10 _ -1.20 sp 3/30/04 135.05 124.12 -3.02 6/14/04 135.05 122.18 1.94 9/3/04 135.05 119.13 2.71 3.05 12/10/04 135.03 121.58 0.26 -2.45 3/16/05 135.03 123.90 -2.06 -2.32 5/31/05 135.00 122.00 -0.16 1.90 8/24/05 135.00 117.86 3.98 4.14 11/8/05 135.00 118.84 3.00 -0.98 2/7/06 135.00 121.95 -0.11 -3.11 MW -5 5/5/06 135.00 122.70 -0.86 -0.75 8/11/06 135.00 118.37 3.47 4.33 10/30/06 135.00 119.20 121.84 2.64 -0.83 1/16/07 135.00 120.81 1.03 -1.61 4/19/07 135.00 120.83 1.01 -0.02 7/17/07 135.00 118.26 3.58 2.57 10/16/07 135.00 117.70 4.14 0.56 1/17/08 135.00 121.90 -0.06 -4.20 4/19/08 135.00 124.49 -2.65 -2.59 7/15/08 135.00 121.38 0.46 3.11 10/27/08 135.00 123.51 -1.67 -2.13 NOTES: BTOC = Below Top of Casing Ave. Water Level Chanoe (feet) GW = Groundwater 2Q.05 - 3Q.05 4.93 MSL = Mean Sea Level 30.05 - 4Q.05 -1.27 OC = Top of Casing 4Q.05 - 10.06 -3.58 sp = Survey pending 1Q.06 - 2Q.06 -0.39 20.06 - 3Q.06 4.52 3Q.06 - 4Q.06 -0.89 40.06 - 1Q.07 -1.99 1Q.07 - 2Q.07 0.15 2Q.07 - 3Q.07 2.83 3Q.07 - 4Q.07 0.52 4Q.07 - 1 Q.08 -4.73 1 Q.08 - 2Q.08 -2.54 2Q.08 - 3Q.08 3.84 3Q.08 - 4Q.08 -2.49 E2 C Remediation Table 2 -5 M M M M M M M M r Project Number 1803BK26 January 12, 2009 . TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B I T E X TPHg MtBk_L TBA J DIPE I ETBE TAME 1,2 -DCA EDB Dis. Lead ID Date pg/L 2/18/98 nd <0.5 nd <0.5 nd <0.5 130 380 1,570 nd na na na na na na duplicate nd <0.5 nd <0.5 nd <0.5 140 390 1,770 nd na na na na na na 5/23/02 nd <0.5 nd <0.5 nd <0.5 nd<0.5 5,200 4,040 nd na na na na na na duplicate <0.5 nd <0.5 nd <0.5 nd <0.5 5,350 3,730 nd na na na na na na 8/15/02 _nd nd <0.5 nd <0.5 nd <0.5 nd <0.5 6,000 5,780 na na na _ na na na na duplicate nd <0.5 nd <0.5 nd <0.5 nd <0.5 6,250 5,590 na na na na na na na 12/9/02 nd <0.5 nd<0.5 nd <0.5 130 12,300 11,630 nd <2.5 nd <0.5 nd <0.5 nd <0.5 2.2 nd <0.5 nd <0.05 duplicate nd <0.5 nd <0.5 1.0 130 13,730 11,660 nd <2.5 nd<Q.5 1.9 nd <0.5 3.7 nd <0.5 nd <0.05 2/28/03 duplicate_ nd <0.5 nd <0.5_ nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 21,000 19,200 20,900 19,100 68.0 98.3 nd<0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na 6/5/03 3,270 10,600 383 1 7,944 40,800 12,700 157 nd <0.5 nd <0.5 1 nd <0.5 nd <0.5 nd <0.5 na duplicate 3,550 11,500 371 8,185 48,000 13,500 171 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/10/03 590 1,960 25 10,080 18,900 74,600 180 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate 580 2,120 25 10,180 18,850 67,000 172 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 12/9/03 1,292 3,471 475 2,540 14,032 31,188 nd <2.5 nd <0.5 21 20 nd<0.5 130 na MW -1 duplicate 1,450 4,246 470 2,544 14,130 31,804 nd<2.5 nd <0.5 26 20 nd <0.5 140 na 3/30/04 174 1,605 2,690 2,508 66,407 12,365 nd<2.5 nd<0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na duplicate 181 1,589 2,570 2,455 67,152 12,210 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 na 6/14/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 307 9.0 nd<2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 na 9/3/04 nd <0.5 nd <0.5 nd <0.5 4.3 270 19 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate nd <0.5 nd <0.5 nd <0.5 4.2 330 20 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 12/10/04 nd <0.5 16 9.4 78 1,700 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5. nd <0.5 nd <0.5 na duplicate nd <0.5 15 9.3 78 1,700 nd <0.5 nd<2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 3/16/05 nd <0.5 nd <0.5 nd <0.5 5.4 750 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 na 5/31/05 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 8/24/05 nd <0.5 10 12 260 3,200 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 11/8/05 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd<0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 2/7/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 5/5/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 8/11/06 nd <0.5 nd <0.5 nd <0.5 17 4,600 nd <0.5 I nd <2.5 I nd<0.5 I nd <0.5 I nd <0.5 I nd <0.5 nd <0.5 na E2 Remediation Table 3 -1 M i M M M Project Number 1803BK26 i M S M M M M M January 12, 2009 TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B T E X TPHg I MtBE TB A DIPE ETBE TAME 11,2-DCAI EDB I Dis. Lead ID Date pg/L 10/30/06 11 2.0 5.2 28 13,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1/16/07 5.5 2.8 2.8 12 6,300 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 4/19/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 980 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 na 7/17/07 nd <0.5 nd <0.5 nd<0.5 nd <0.5 81 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na MW 10/16/07 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na -1 1/17/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 427 nd<0.5 nd <2.5 I nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 4119108 nd <0.5 nd<0.5 nd <0.5 nd <0.5 1,630 nd <0.5 nd <2.5 nd<0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 na 7/15/08 nd <0.5 . nd <0.5 nd<0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/27/08 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na E2 Remediation Table 3 -2 Project Number 1803BK26 i January 12, 2009 - TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B T E X TPHg MtBE I TBA DIPE ETBE I TAME 11,2-DCAI EDB I Dis. Lead ID Date L 2/28/03 nd <0.5 nd <0.5 nd <0.5 3.74 1,600 1,590 nd <2.5 nd <0.5 nd <0.5 nd <0.5 1.92 nd <0.5 na 6/5/03 nd <0.5 nd <0.5 nd <0.5 nd <0.5 76.0 212 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/10/03 40 44 180 452 4,155 3,280 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 12/9/03 nd <0.5 _ nd<0.5 0.6 14 226 2,286 12 nd <0.5 nd <0.5 nd <0.5 4 nd <0.5 na 3/30/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 273 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 6/14/04 nd <0.5 nd <0.5 _ nd <0.5 nd <0.5 nd <50 13 nd <2.5 nd <0.5 nd <0.5 nd <0.5. nd <0.5 nd <0.5 na 9/3/04 nd <0.5 nd <0,5 nd <0.5 nd <0,5 nd <50 8.0 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 na 12/10/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 na 3/16/05 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 _ nd <0.5 _nd nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 5/31/05 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 8/24/05 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd<0.5 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 11/8/05 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na MW 2/7/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd<2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na -2 5/5/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 _ nd <50 nd <0.5 nd<2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 8/11/06 <0.5 nd <0,5 nd <0.5 nd<0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/30/06 _nd nd <0.5 nd<0,5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1/16/07 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 4/19/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd<2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 7/17/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd<2:5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/16/07 1/17/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd<50 nd <0.5 nd <0.5 nd <2.5 nd <2.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na 4/19/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 7/15/08 duplicate nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <50 nd <0.5 nd <0.5 nd<2.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na 10/27/08 nd <0.5 nd <0,5 nd <0.5 nd <0.5 nd <50 nd<0.5 nd <2.5 nd<0.5. nd <0.5 nd <0.5 nd <0.5 nd <0.5 na E2 Remediation Table 3-3 M i♦ M i♦ I♦ M M M M M M M M r Project Number 1803BK26 M M M M M January 12, 2009 TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B T E X TPHg I MtBE TBA DIPE ETBE TAME 1,2 -DCA EDB Dis. Lead ID Date L 2/28/03 nd <0.5 nd <0.5 nd <0.5 63.9 2,950 2,870 nd <2.5 nd <0.5 nd<0.5 nd <0.5 15.9 nd <0.5 na 6/5/03 nd <0.5 nd <0.5 nd <0.5 0.8 429 305 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/10/03 110 170 nd <0.5 260 5,370 550 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 12/9/03 1,129 5,328 766 2,669 10,026 928 nd <2.5 nd <0.5 7.0 nd <0.5 8.0 3.0 na 3/30104 9,800 18,050 3305 3,310 68,121 19,626 nd <2.5 nd <0.5 nd <0.5 nd <0.5 22 nd <0.5 na 6/14/04 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<50 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 9/3104 nd <0.5 4.3 nd <0.5 3.0 330 780 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 3.3 na 12/10/04 54 2,700 190 2,300 25,000 410 nd <0.5 nd <0.5 nd <0.5 nd <0.5 1.3 710 na 3/16/05 650 1,200 540 2,000 32,000 22 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na duplicate 650 1,200 540 2,000 32,000 21 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 5/31/05 10 10 nd <0.5 870 3,100 23 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate 10 10 nd <0.5 860 3,100 24 nd <2.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 na 8/24/05 nd <0.5 8.8 3.2 100 1,100 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate nd <0.5 8.7 3.1 98 1,100 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 11/8/05 nd <0.5 9.5 3.4 99 1,100 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na MW 2/7/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na -3 duplicate nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 5/5/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate 8/11/06 nd <0.5 4.0 nd <0.5 78 nd <0.5 15 nd <0.5 2,300 nd <50 25,000 nd <0.5 nd <0.5 nd <2.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na duplicate 4.0 78 15 2,300 25,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/30106 3.0 320 170 1,600 42,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd<0.5 na duplicate 3.0 320 170 1,600 42,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 I nd <0.5 nd <0.5 nd <0.5 na 1/16/07 duplicate 18 18 320 320 250 250 1,500 1,500 44,000 44,000 nd <0.5 nd <0.5 nd <2.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na 4119/07 33 900 740 1,800 22,000 nd <0.5 nd <2.5 nd <0.5 1nd<0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate 33 900 74_0 1,800 22,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 7/17/07 nd < 0.5 2,900 1,000 4,700 55,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na du licate nd <0.5 2,900 1,000 4,700 55,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/16/07 nd <0.5 3 190 190 14,000 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate nd <0.5 3 190 190 14,000 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1/17/08 nd <0.5 49.0 133 242 9,420 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na duplicate nd <0.5 48.2 134 239 1 9,440 1 nd <0.5 nd <2.5 nd <0.5 nd <0.5 I nd <0.5 nd <0.5 nd <0.5 na EZ C Remediation Table 3-4 M M Project Number 1803BK26 IM i♦ January 12, 2009 E2 Aemediation Table 3-5 TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B T E X TPHg MtBE A TBA I DIPE I ETBE I TAME 1,2 -DCA EDB Dis. Lead ID Date Ng/L 4/19/08 nd <0.5 27.3 39 79.8 1,490 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na MW -3 7/15/08 nd <0.5 1,370 145 593 11,100 1,300 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/27/08 nd <0.5 nd <0.5 nd <0.5 8.93 6.748 23.4 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1 E2 Aemediation Table 3-5 Project Number 1803BK26 January 12, 2009 TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B I T E X I TPHg_L MtBE DIPE I ETBE I TAME 11,2-DCAI EDB I Dis. Lead ID Date _ _TBA pg/L 2/28/03 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 6/5/03 0.8 nd <0.5 nd<0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/10/03 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <50 8.5 nd <2.5 nd <0.5 nd<0.5 nd <0.5 nd<0.5 nd <0.5 na 12/9/03 nd <0.5 nd <0.5 0.6 nd <0.5 nd <50 nd<0.5 nd <2.5_ nd <0.5 nd <0.5 _nd <0.5 nd <0.5 nd <0.5 na 3/30/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 6/14/04 1.0 nd <0.5 nd <0.5 nd <0.5 nd <50 1,388 nd <2.5 1.0 nd <0.5 nd <0.5 9.0 nd <0.5 na 9/3/04 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 12/10/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd<0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 3/16/05 5/31/05 nd <0.5 nd <0.5 nd <0.5 2.3 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <50 nd <0.5 nd<0.5 nd <2.5 nd<2.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na 8/24/05 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 11/8/05 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na MW 2/7/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na -4 5/5/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 8/11/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/30/06 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1/16/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 4/19/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 7/17/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/16/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 1/17/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 4/19/08 nd <0.5 nd <0.5 nd<0.5 nd<0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 I nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 7/15/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 . nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/27/08 duplicate nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <50 nd <0.5 nd <0.5 nd <2.5 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na E2 Remediation Table 3 -6 M = 1=1 ' I♦ M 1♦ IM i♦ Project Number 1803BK26 January 12, 2009 E2 C Remediation Table 3 -7 TABLE 3 SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Well Sample B T E X TPHg MtBE I TBA I DIPS I ETBE I TAME 1,2 -DCA EDB Dis. Lead ID Date Ng/L 10/10/03 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 12/9/03 nd <0.5 nd<0.5 0.6 0.6 nd <50 nd <0.5. _nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 3/30/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 6/14/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 193 nd<2.5 nd <0.5 nd <0.5 nd <0.5 1.0 nd <0.5 na 9/3/04 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 12/10/04 nd <0.5 nd <0.5 nd <0.5 nd<0.5 _ nd <50 nd<0.5 nd <2.5 nd<0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 3/16/05 nd<0.5 nd<0.5 nd<0.5 nd <0.5 nd <50 nd <0.5 nd<2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na_ 5/31/05 nd <0.5 nd <0.5 nd <0.5 nd <50 2.3 nd <2.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 na 8/24/05 11/8/05 nd <0.5 nd <0.5 _3.7 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <50 nd <50 nd <0.5 nd <0.5 nd <2.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na na 2/7/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 0 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na MW -5 5/5/06 nd <0.5 nd <0.5 nd <0.5 nd<0.5 0 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na _ 8/11/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 End<50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/30/06 nd <0.5 nd <0.5 nd <0.5 nd <0.5 0 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1/16/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 4/19/07 nd<0.5 nd<0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 7/17/07 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 na 10/16/07 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 1/17/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd<0.5 nd <0.5 nd <0.5 nd <0.5 na 4/19/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 7/15/08 nd <0.5 nd <0.5 nd <0.5 nd<0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na 10/27/08 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <50 nd <0.5 nd <2.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 nd <0.5 na Notes: Results in micrograms per liter (pg/1) = parts per billion (ppb) Analytical Methods: BTEX, oxygenates, 1,2 -DCA, and EDB by EPA Method 8260b; TPHg by EPA Method 8015M; Dissolved Lead by EPA Method 3010A/6010B Method Detection Limits: BTEX - 0.5 pg/L; TPHg - 50 pg/L; MtBE, ETBE, TAME, and DIPE - 0.5 pg/L; TBA - 2.5 pg/L 1,2 -DCA = 1,2- Dichloroethan( EDB = Ethylene dibromide T = Toluene B = Benzene ETBE = Ethyl tertiary-butyl Ether TAME = Tertiary-Amyl Methyl Ether DIPE = Di- isopropyl Ether MtBE = Methyl tertiary-Butyl Ether TBA = Tertiary Butyl Alcohol (a.k.a. tert- butanol) Dis. Lead = Dissolved lead na = Not analyzed TPHg - Total Petroleum Hydrocarbons as gasoline E = Eth Ibenzene nd - Not Detected at or above Method Detection Limit indicated by value X = Total xVlenes E2 C Remediation Table 3 -7 M M M M M M MI January 12, 2009 TABLE 4A SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Cumulative Calendar Days Operating Hours Cumulative Operating Hours Inlet Flow (scfm) Combustion Temp. ( °F) Stack Temp. ( °F) Field TPH in (ppmv) Lab TPH in (ppmv) Field TPH out (ppmv) Lbs. /Hr. Extracted Cumulative Lbs. Extracted Cumulative Gallons Extracted 4/29/04 0 81 0 276 1515 1505 50,000 0 187.64 15,290 2,389 4/30/04 1 105.5 24.0 284 1525 1485 50,000 0 193.08 19,924 3,113 5/3/04 4 177.5 96.0 265 1495 1360 50,000 0 180.16 32,897 5,140 5/4/04 5 201.8 120.3 264 1489 1314 50,000 0 179.48 37,259 5,822 517/04 8 273.0 191,.5 261 1477 1379 48,408 0 171.79 49,490 7,733 5/10/04 11 345.5 264.0 271 1471 1351 37,000 0 136.34 59,375 9,277 5/13/04 14 417.5 336.0 268 1486 1358 19,300 0 70.33 64,437 10,068 5/17/04 18 516.0 434.5 267 1476 1355 17,000 0 61.72 70,517 11,018 5/24/04 25 685.0 603.5 266 1481 1353 4,000 0 14.47 72,962 11,400 6/1/04 33 876.0 1450.0 267 1488 1354 7,700 0 27.95 96,625 15,098 6/7/04 39 1024.0 3100.0 258 1483 1341 9,515 0 33.38 151,699 23,703 6/14/04 46 1189.0 3800.0 261 1489 1383 7,000 0 24.84 169,088 26,420 6/15/04 47 1203.0 2400.0 230 1488 1354 6,950 0 21.73 138,660 21,666 6/21/04 53 1357.0 2554.0 220 1479 1477 6,600 0 19.74 141,700 22,141 7/2/04 64 1620.0 2817.0 220 1480 1337 6,320 25 18.91 146,672 22,918 7/6/04 68 1716.0 2913.0 214 1481 1341 3,000 20 8.73 147,510 23,048 7/20/04 82 2050.0 5100.0 214 1482 1345 7,550 23 21.97 195,555 30,555 7/26/04 88 2198.0 3625.0 212 1473 1333 4,020 28 11.59 178,463 27,885 8/4/04 97 2409.2 1701.0 215 1470 1472 6,300 15 18.42 143,029 22,348 8/10/04 103 2551.4 1588.5 215 1477 1465 5,300 21 15.49 141,286 22,076 8/17/04 110 2724.2 1412.5 223 1489 1475 2,800 0 8.49 139,792 21,842 8/24/04 117 2789.0 1000.0 216 1485 1361 5,980 15 17.56 132,547 20,710 9/1/04 125 2978.0 1189.0 199 1487 1341 4,185 30 11.32 134,687 21,045 9/3/04 127 3023.0 430.0 210 1415 1395 4,950 28 14.13. 123,960 19,369 9/7/04 131 3117.0 2100.0 201 1474 1335 4,260 14 11.64 143,402 22,407 9/13/04 137 3258.2 840.0 184 1482 1354 4,110 0 10.25 130,482 20,388 9/20/04 144 3258.2 505.0 181 30 1354 5,230 20 12.87 126,170 19,714 9/27/04 151 3258.2 600.0 185 27 1354 6,560 21 16.54 127,741 19,960 10/4/04 158 3258.2 600.0 222 0 0 3,175 10 9.58 127,741 19,960 11 10/11/04 1 165 1 3936.0 1 1277.9 1 187 1 1479 1 1482 1 1,775 1 1 0 1 4.51 1 130,800 1 20,438 11 E2 C Remediation Table 4A -1 Project Number 1803BK26 January 12, 2009 TABLE 4A SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Cumulative Calendar Days Operating Hours Cumulative Operating Hours Inlet Flow (sctm) Combustion Temp. ( °F) Stack Temp. ( °F) Field TPH In (ppmv) Lab TPH in (ppmv) Field TPH out (ppmv) Lbs. /Hr. Extracted Cumulative Lbs. Extracted Cumulative Gallons Extracted 10/18/04 172 4056.0 1397.9 191 1483 1485 1,850 12 4.80 131,377 20,528 10/27/04 181 4280.0 1621.9 194 1490 1479 1,900 10 5.01 132,499 20,703 11/1/04 186 4403.0 1744.9 192 1486 1481 2,700 20 7.05 133,366 20,838 11/8/04 193 4567.5 1909.4 191 1483 1482 1,550 10 4.03 134,028 _ 20,942 11/15/04 200 4740.0 2081.9 179 1488 1482 2,650 20 135,141 21,116 11/22/05 572 4906.0 2247.9 179 1481 1480 2,350 ---6.45 20 5.72 996,090 21,264 11/29/04 214 5072.0 2413.9 189 1474 1334 2,275 0 5.85 137,061 21,416 12/10/04 225 5334.0 2675.9 193 1493 1487 2,200 0 5.77 138,573 21,652 12/17/04 232 5369.0 2710.9 200 1489 1491 1,850 10 5.03 138,749 21,680 12/23/04 238 5369.0 2710.9 0 0 0 0 0.00 138,749 21,680 12/28/04 243 5496.3 2838.1 120 1489 1480 1,500 0 2.45 139,061 21,728 1/4/05 250 5667.0 3008.9 212 1482 1477 1,350 10 3.89 139,725 21,832 1/14/05 260 5793.0 3134.9 221 1481 1481 710 0 2.13 139,994 21,874 1/18/05 264 5800.0 3141.9 204 1483 1483 1,200 10 3.33 140,017 21,878 1/24/05 270 5942.0 3283.9 201 1483 1479 1,850_ 10 5.06 140,735 21,990 1/31/05 277 6110.0 3451.9 190 1481 1482 1,300 1,900 10 4.91 141,560 22,119 2/11/05 288 6110.0 3451.9 0 0 0.00 141,560 22,119 2/14/05 291 6113.0 3454.9 184 1485 1485 1,166 1,000 2.50 141,567 22,120 2121/05 298 6279.0 3620.9 184 1481 1481 1,950 _20 10 7.76 142,855 22,321 2/28/05 305 6451.0 3792.9 180 1480 1480 2,550 20 7.59 144,160 22,525 317/05 312 6546.0 3887.9 187 1480 1480 3,150 5,200 21 13.22 145,416 22,721 3/16/05 321 6572.0 3913.9 186 1480 1479 2,800 0 9.61 145,666 22,760 3/21/05 326 6650.0 3991.9 190 1485 1480 2,850 20 9.82. 146,432 22,880 3/28/05 333_ 6819.0 4160.9 185 1478 1475 2,550 20 9.56 23,132 4/4/05 340 6985.0 183 1480 1480 1,600 6 9.46 _148,047 149,617 23,378 4/13/05 349 7196.1 _4326.9 4537.9 184 1478 1480 1,600 70 9.51 151,623 23,691 4/21/05 357 7196.1 4538.0 184 1495 1495 2,150 100 9.51 151,623 23,691 4/26/05 362 7360.0 4701.9 181 1490 1490 1,800 2,400 0 5.91 152,591 23,842 5/2/05 368 7505.0 4846.9 180 1478 1478 1,600 5 5.87 153,443 23,975 5/4/05 1 370 1 7673.0 1 5014.9 182 1 1480 1 1480 1,550 1 1 5 1 5.94 1 154,441 24,131 E2 C Remediation Table 4A -2 M M M M M M Project Number 1803BK26 M M M M M M M M M M M M M January 12, 2009 TABLE 4A SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Cumulative Calendar Days Operating Hours Cumulative Operating Hours Inlet Flow (scfm) Combustion Temp. ( °F) Stack Temp. ( °F) Lab TPH in (ppmv) Field TPH out (ppmv) Lbs. /Hr. Extracted Cumulative Lbs. Extracted Cumulative Gallons Extracted 5/16/05 382 7837.0 5178.9 183 1480 1479 2,400 7 5.97 155,420 24,284 7/25/05 452 7936.0 5277.9 177 1506 1409 ,00 9 8.90 156,302 24,422 7/29/05 456 8125.0 5466.9 177 1488 1478 2,950 15 8.90 157,985 24,685 8/4/05 462 8168.0 5509.9 180 1482 1477 2,250 20 9.06 158,374 24,746 8/12/05 470 8364.0 5705.9 177 1474 1473 800 0 8.90 160,120 25,019 8/19/05 477 8530.0 5871.9 160 1481 1490 3,500 18 8.05 161,456 25,227 8/24/05 482 8651.0 5992.9 164 1483 1482 3,600 20 8.25 162,454 25,383 8/31/05 489 8823.0 6164.9 159 1478 1484 3,300 5,000 17 10.81 164,313 25,674 917/05 496 8983.0 6324.9 157 1482 1493 3,100 70 10.89 166,055 25,946 90/05 496 8992.0 6333.9 154 1740 1423 3,300 50 10.68 166,151 25,961 9/26/05 515 8992.0 6333.9 225 1494 1496 5,300 5,200 90 15.91 166,151 25,961 10/3/05 522 9157.5 6499.4 178 1477 1482 2,950 55 8.77 167,603 26,188 10/17/05 536 9158.0 6499.9_ 180 1484 1488 2,050 2,050 50 5.02 167,606 26,188 10/26/05 545 9160.0 6501.9 193 1483 1489 4,050 70 4.46 167,615 26,190 10/31/05 550 9281.0 6622.9 191 1476 1481 2,350 0 4.42 168,149 26,273 11/7/05 557 9282.0 6623.9 190 1482 1486 1,850 0 4.39 168,154 26,274 11/14/05 564 9282.0 6623.9 196 1479 1483 1,850 0 4.53 168,154 26,274 11/22/05 572 9283.0 6624.9 183 1488 1483 1,352 1,352 0 3.36 168,157 26,275 11/28/05 578 9428.0 6769.9 176 1480 1484 1,589 0 3.80 168,708 26,361 12/5/05 585 9429.0 6770.9 183 1487 1490 1,589 0 3.95 168,712 26,361 12/12/05 592 9429.0 6770.9 180 1486 1492 1,825 1,825 0 4.47 168,712 26,361 1/24/06 635 9430.0 6771.9 184 1460 1487 1,000 1,000 0 2.50 168,715 26,362 1/31/06 642 9597.0 6938.9 185 1 479 1479 1,000 0 1.80 169,015 26,409 2/7/06 649 9769.0 7110.9 185 1481 1490 2,850 0 1.80 169,324 26,457 2/13/06 655 9770.0 7111.9 190 1481 1487 3,750 0 1.85 169,326 26,457 2/20/06 662 9770.0 7111.9 195 1483 1490 5,500 0 1.90 169,326 26,457 2/27/06 669 9770.0 9688.5 0 0.00 169,326 26,457 3/6/06 676 1.4 9689.9 200 1453 1459 4,450 0 1.94 169,329 26,458 317/06 677 23.0 9711.5 199 1435 1456 512 430 0 1.16 169,354 26,462 3/13/06 1 683 1 23.0 9721.6 0 0.00 169,354 26,462 E2 C Remediation Table 4A -3 Project Number 1803BK26 M M M M M M January 12, 2009 TABLE 4A SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Cumulative Calendar Days Operating Hours Cumulative Operating Hours Inlet Flow (scfm) Combustion Temp. ( °F) Stack Temp. ( °F) Field TPH in (ppmv) Lab TPH in (ppmv) Field TPH out (ppmv) Lbs. /Hr. Extracted Cumulative Lbs. Extracted Cumulative Gallons Extracted 3/20/06 690 23.0 9721.6 0 0.00 169,354 26,462 3/27/06 697 23.0 9721.6 0 0.00 169,354 26,462 4/3/06 704 23.0 9721.6 0 0.00 169,354 26,462 4/20/06 721 23.4 9722.0 192 649 648 3,200 0 0.56 169,354 26,462 4/25/06_ 726 142.2 9840.8 195 650 652 1,600 2,100 0 5.57 170,016 26,565 5/5/06 736 380.0 1 0078.6 181 654 646 3,100 0 1.03 170,262 26,603 5/8/06 739 455.1 10153.7 181 655 653 2,700 0 .1.03 170,339 26,615 5/22/06 753 720.1 10418.7 177 662 651 800 840 0 2.02 170,875 26,699 6/1/06 763 960.1 10658.7 185 659 648 720 0 1.57 171,252 26,758 616/06 768 1080.1 10778.7 179 651 662 780 0 1.52 171,435 26,787 6/12/06 774 1224.1 10922.7 181 660 650 640 0 1.54 171,656 26,821 6123/06 785 1488.0 11186.6 180 652 651 540 0 1.53 172,060 26,884 6/27/06 789 1586.0 11284.6 180 646 650 1,100 410 0 1.00 172,158 26,900 7/3/06 795 1732.0 11430.6 181 646 650 980 0 1.24 172,340 26,928 7/12/06 804 1949.0 11647.6 177 652 659 1,060 0 1.22 172,603 26,969 7/17/06 809 2070.0 11768.6 179 658 659 880 0 1.23 172,752 26,993 7/24/06 816 2235.0 11933.6 168 642 644 650 600 0 1.37 .172,978 27,028 8/2/06 825 2313.0 12011.6 222 665 662 540 0 1.98 173,133 27,052 8/22/08 1576 2314.0 12012.6 187 649 638 460 0 1.67 173,134 27,052 8/25/08 1579 2327.0 12025.6 187 653 653 800 713 0 1.81 173,158 27,056 8/26/08 1580 2348.0 12046.6 187 656 643 590 0 1.72 173,194 27,062 9/2/08 .1587 2522.0 12220.6 187 644 657 . 1,150 0 1.72 173,493 27,108 9/5/08 1590 2591.0 12289.6 187 649 652 2,850 0 1.72 173,612 27,127 9/8/08 1593 2663.0 12361.6 187 653 655 590 0 1.72 173,736 27,146 9/15/08 1600 2825.0 12523.6 187 _ 656 658 540 0 1.72 174,015 _271190 9/22/08 1607 2998.0 12696.6 187 654 655 604 640 0 1.63 174,296 27,234. E2 C Aemediation Table 4A-4 M M M M Project Number 1803BK26 M M M M M M M M M M M M M January 12, 2009 TABLE 4A SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Cumulative Calendar Days Operating Hours Cumulative Operating Hours Inlet Flow (scfm) Combustion Temp. ( °F) Stack Temp. ( °F) Field TPH in (ppmv) Lab TPH in (ppmv) Field TPH out (ppmv) Lbs. /Hr. Extracted Cumulative Lbs. Extracted Cumulative Gallons Extracted 9/29/08 1614 3168.0 12866.6 187 653 654 600 0 1.53 174,556 27,274 10/6/08 1621 3336.0 13034.6 187 650 651 540 0 1.37 174,786 27,310 10/24/08 1639 3764.0 13462.6 187 653 655 500 0 1.27 175,330 27,395 11/7/08 1653 3809.0 13507.6 187 649 651 440 0 1.12 175,381 27,403 11/10/08 1656 3880.0 13578.6 187 651 653 410 0 1.04 175,455 27,415 11/21/08 1667 3951.0 13649.6 187 653 653 430 0 1.09 175,532 27,427 11/24/08 1670 4021.0 13719.6 187 653 651 510 0 1.30 175,623 27,441 12/1/08 1677 4155.0 13853.6 187 651 651 440 0 1.12 175,773 27,465 E2 C Remediation Table 4A -5 M M M M M M r M M M M M M M M M r M M\ Project Number 1803BK26 January 12, 2009 TABLE 4A SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Cumulative Cumulative Inlet Combustion Stack Field Lab Field Cumulative Cumulative Date Calendar Operating Operating Flow Temp. Temp. TPH in TPH in TPH out Lbs. /Hr. Lbs. Gallons Monitored Days Hours Hours (scfm) ( °F) ( °F) I (ppmv) (ppmv) (ppmv) Extracted Extracted Extracted Notes: Hydrocarbons Removed (lbs /month) = Influent Concentration (ppmv) X 10 -6 X Influent Flow Rate (scfm) X 1 lb-mole/379.5 ft3 X 86 (lb /lb -mole) X 1440 (min /day) X Run Time (days/month) 14/05 - Bag analytical data used in calculations for this time; PID malfunction 4/29/04 - VES (BF -250 CFM) operation starts with all wells open, air sparge on, and 3/4 dilution air on air filter. Starting influent was measured with FID at a concentration greater than 50,000 ppmv. 12/22/2000 - System down, no supplemental fuel flow as supply was 'zero; notify PG &E 12/27/2000 - Restart system; collect Tedlar bag samples; Influent TPHg = 1,550 ppmv, BTEX = 47 ppmv; effluent TPHg = 0.6 ppmv, BTEX = non - detect /19/2005 - City of Bakersfield issued a 7 -Day Notice to Abate, due to noise levels from remediation system. System shut down on 5/23/2005. 7/25/05 - New air compressor, and insulation for blower installed; City of Bakersfield -Inspector approves restart. 9/7/2005 thru 9/26/05 - System cycled off to allow for contaminant rebound. 10/3/2005 thru 10/17/05 - System cycled off to allow for contaminant rebound. 10/31/2005 thru 11/22/05 - System cycled off to allow for contaminant rebound. 11/28/2005 thru 12/12/05 - System cycled off to allow for contaminant rebound. 2/7/06 thru 3/6/06 - System cycled off to allow for contaminant rebound. March 6, 2006 - Hour meter reset to 0.0 by Baker Furnace during repair March 7, 2006 - Bag data used for influent 3/7106 thru 4/20/06 - System cycled off to allow for contaminant rebound. 8/2/06 - System cycled off to allow for contaminant rebound. open = O; partiallv open = PO; closed = C E2 C Remediation Table 4A -6 Project Number 1803BK26 January 12, 2009 TABLE 4B SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Well VE -1 S valve Well VE -1 D valve Well VE -2S valve Well VE -21D valve Well VE -3S valve Well VE -3D valve Well VE-4 valve Dilution Air Valve N 4/29/04 0 O 0 0 0 O 0 75% 4/30/04 0 0 0 0 O 0 O 0% 5/3/04 0 0 0 0 O 0 O 0% 5/4/04 O O 0 0 0 O O 0% 57/04 0 0 0 O 0 O O 0% 5/10/04 0 0 O 0 0 0 0 0% 5/13/04 0 0 0 O 0 O 0 0% 5/17/04 0 O 0 0 0 O 0 0% 5/24/04 0 0 0 0 0 0 O 0% 6/1/04 0 0 C 0 0 0 0 0% 67104 0 O C 0 0 0 0 0% 6/14/04 0 O C 0 0 0 O 0% 6/15/04 0 O C 0 0 0 O 0% 6/21/04 0 0 C 0 0 0 0 0% 7/2/04 0 0 C 0 C 0 O 0% 7/6/04 O 0 C O C 0 O 0% 7/20/04 0 O C O C 0 0 0% 7/26/04 0 O C C C 0 0 0% 8/4/04 O 0 C C C 0 0 0% 8/10/04 0 O C C C 0 0 0% 8/17/04 0 0 C O O 0 1/2 0% 8/24/04 0 0 C 1/2 1/2 0 1/4 0% 9/1/04 O 0 C 1/2 1/2 1/2 C 0% 9/3/04 0 O C 1/2 1/2 1/2 C 0% 97/04 1 0 O C 1/2 1/2 1/2 C 0% 9/13/04 O O C 1/2 1/2 1/2 C 0% 9120/04 0 O C 1/2 1/2 1/2 C 0% 9/27/04 0 1/2 C 1/2 1/2 1/2 C 0% 10/4/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 10/11/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 10/18/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 10/27/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 11/1/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 11/8/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 11/15/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 11/22/05 1/2 1/2 C 1/2 1/2 1/2 C 0% 11/29/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 12110104 1/2 1/2 C 1/2 1/2 1/2 C 0% 12/17/04 1/2 1 /2 C 1/2 1/2 1/2 C 0% 12/23/04 1/2 1/2 C 1/2 1/2 1/2 C 0% 12/28/04 1 1/2 1 1/2 1 C 1 1/2 1 1/2 1 1/2 1 C 0% tE2 Remediation Table 4B -1 Project Number 1803BK26 January 12, 2009 TABLE 4B SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Well VE -1 S valve Well VE -1 D valve Well VE -2S valve Well VE -2D valve Well VE -3S valve Well VE -3D valve Well VE -4 valve Dilution Air Valve N 1/4/05 0 1/2 1/2 1/2 1/2 1/2 1/2 0% 1/14/05 0 1/2 1/2 1/2 1/2 1/2 1/2 0% 1/18/05 0 1/2 1/2 1/2 1/2 1/2 1/2 0% 1/24/05 0 1/2 1/2 1/2 1/2 1/2 1/2 0% 1/31/05 0 0 1/2 1/2 1/2 112 1/2 0% 2/11/05 .0 0 1/2 1/2 1/2 1/2 1/2 0% 2/14/05 O 0 1/2 1/2 1/2 1/2 1/2 0% 2/21/05 0 0 C C C C 1/2 0% 2/28/05 0 0 C C C C 1/2 0% 3/7/05 0 0 C C C C 1/2 0% 3/16/05 0 0 C C C C 1/2 0% 3/21/05 0 0 C C C C 1/2 0% 3/28/05 0 0 C C C C 1/2 0% 4/4/05 1 0 0 C C C C 1/2 0% 4/13/05 0 0 C C C C 1/2 0% 4/21/05 0 0 C C C C 1/2 0% 4/26/05 0 0 C C C C 1/2 0% 5/2/05 0 0 C C C C 1/2 0% 5/4/05 0 0 C C C C 1/2 0% 5/16/05 0 0 C C C C 1/2 0% 7/25/05 0 0 C C C C 1/2 0% 7/29/05 0 0 C C C C 1/2 0% 8/4/05 0 0 C C C C 1/2 0% 8/12/05 0 PO C C C C 1/2 0% 8/19/05 0 PO C C C C 1/2 0% 8/24/05 0 PO C C C C 1/2 0% 8/31/05 0 PO C C C C 1/2 0% 9/7/05 0 PO C C C C 1/2 0% 9!7/05 0 PO C C C C 1/2 0% 9/26/05 0 0 C C C C 1/2 0% 10/3/05 0 0 C C PO C 1/2 0% 10/17/05 0 0 C C PO C 1/2 0% 10/26/05 10/31/05 0 0 C C PO C 1/2 0% 11/7/05 0 O C C PO C 1/2 0% 11/14/05 O 0 PO C PO C 1/2 0% 11/22/05 PO PO PO PO PO PO 1/2 0% 11/28/05 12/5/05 12/12/05 0 0 PO PO PO PO 1/2 0% 1/24/06 1 O 1 O 1 PO PO PO PO 1/2 0% IEZ C Remediation Table 4B -2 Project Number 1803BK26 January 12, 2009 TABLE 46 SUMMARY OF VES MONITORING DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date Monitored Well VE -1 S valve Well VE -1 D valve Well VE -2S valve Well VE -2D valve Well VE -3S valve Well VE -3D valve Well VE-4 valve Dilution Air Valve N 1/31/06 O O PO PO PO PO 1/2 0% 2/7/06 O O PO PO PO PO 1/2 0% 2/13/06 O O PO PO PO PO 1/2 0% 2/20/06 O O PO PO PO PO 1/2 0% 2/27/06 3/6/06 O O PO PO PO PO 1/2 0% 3/7/06 O O C C C C 1/2 0% 3/13/06 3/20/06 3/27/06 4/3/06 4/20/06 O O PO PO PO PO 1/2 0% 4/25/06 O O PO PO PO PO 1/2 0% 5/5/06 O O PO PO PO PO 1/2 0% 5/8/06 O O PO PO PO PO 1/2 0% 5/22/06 O O PO PO PO PO 1/2 0% 6/1/06 O O PO PO PO PO 1/2 0% 6/6/06 O O PO PO PO PO 1/2 0% 6/12/06 O O PO PO PO PO 1/2 0% 6/23/06 PO PO PO PO PO PO 1/2 0% 6/27/06 PO PO PO PO PO PO 1/2 0% 7/3/06 PO PO PO PO PO PO 1/2 0% 7/12/06 PO PO PO PO PO PO 1/2 0% 7/17/06 PO PO PO PO PO PO 1/2 0% 7/24/06 PO PO PO PO PO PO 1/2 0% 8/2/06 PO PO PO PO PO PO 1/2 0% 8/22/08 1/2 1/2 1/2 1/2 1/2 1/2 1/2 0% 8/25/08 O O O O O O O 0% 9/5/08 O 1/2 1/8 1/4 1/4 1/8 1/2 0% 9/8/08 O O 1/4 1/4 1/8 1/8 1/2 0% 9/22/08 O O 1/8 1/8 1/8 1/8 1/2 0% 10/24/08 O O 1/8 1 1/8 1 1/8 1 1/8 1/2 0% 11 /7/08 O O 1/8 1/8 1/8 1 /8 1/2 0% open = O; partially open = PO; closed = C Ez C Remediation Table 4B -3 t 'l 1 Project Number 1803BK26 January 12, 2009 TABLE 5 SUMMARY OF HYDROCARBON MASS REMOVED USING VE/GASS (based on influent concentrations) MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date (month/year)- HC Removed Ibs/month ) Cumulative HC Removed (Ibs) Influent Concentration (ppmy ) Flow Rate (scfm) Actual Run Time (da s Daily Removal Rate Ibs/da Apr -04 6,730 6,730 50,000 275 1.5 4,487 May -04 85,407 92,138 31,490 268 31.0 2,755 Jun -04 17,455 109,593 7,348 243 30.0 582 Jul -04 12,296 121,889 5,632 216 31.0 397 Aug -04 8,623 130,512 4,764 213 26.0 332 Sep -04 8,965 139,477 4,639 197 30.0 299 Oct -04 5,340 144,816 2,993 195 28.0 191 Nov -04 4,103 148,920 2,238 187 30.0 137 Dec -04 1,095 150,014 1,835 152 12.0 91 Jan -05 1,751 151,766 1,450 206 18.0 97 Feb -05 2,650 154,416 3,100 185 14.2 187 Mar -05 4,212 158,628 3,800 186 18.3 230 Apr -05 3,228 161,856 2,400 182 22.6 143 May -05 2,846 164,702 2,400 182 20.0 142 Jun -05 Jul -05 836 165,538 2,400 178 6.0 139 Aug -05 8,745 174,283 5,100 170 31.0 282 Sep -05 1,446 175,729 3,625 175 7.0 207 Oct -05 856 175,139 1,701 193 8.0 107 Nov -05 580 175,719 1,589 187 6.0 97 Dec -05 0 175,719 1,413 181 0.0 0 Jan -06 421 176,141 1,000 185 7.0 60 Feb -06 319 176,460 715 190 7.2 44 Mar -06 39 176,499 430 200 1.4 28 Apr -06 1,326 177,825 2,100 194 10.0 133 May -06 553 178,378 840 184 11.0 50 Jun -06 895 179,273 505 181 30.0 30 Jul -06 980 180,253 600 185 27.0 36 Aug -06 0 180,253 600 222 0.0 0 Aug -08 305 180,558 713 187 7.0 44 Sep -08 1,172 181,729 640 187 30.0 39 Oct -08 793 182;523 520 187 25.0 32 Nov -08 410 182,932 448 187 15.0 27 Dec -08 1 16 182,949 440 187 0.6 27 Where: Hydrocarbons Removed (lbs/month) = Influent Concentration (ppmv) X 10 -6 X Influent Flow Rate (scfm) X 1 lb-mole/379.5 ft3 X 86 (lb/lb-mole) X 1440 (min/day) X Run Time (days/month) E2 C Remediation Table 5 -1 PrOect Number 1803Bx26 SUMMARY OF HYDROCARBON MASS REMOVED USING VE/GASS (based on influent concentrations) MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Januaty 12, 2009 4,500 4,000 3,50(} 3,000 1,5[)0 000 @�,500 c 1,000 500 0 '''''''''''''''''''''''-''''''''''''-''-'''''-'''''-'''''''''''''''' � �"^� '''''''''''''''-''''''�»v�s�'"�«���'''''''-''''''''''''''''''''''' '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' '''''-'''''-'''''''''''-'''''''''''''''''''''''''''''''''''''''' '''''''''''''''--''''-'''''''''-'''-''''-''-'''''''''''-'''''''' '''''''''''''''-'''''''''''''''''''''''''''''''''''''''''''''''' i-M ''''''''''''''''''-''''''''''''''''''''''''''''''''''''''-'''''''-1 - _ ----------------------------------------------------------------- | < .� }u- >a- }J' �� }u- ��- Month-Ye; NEPounds per Day 2 per. Mov. Avg. (Pounds per Day) seCnemomation Table 5-2 FUEL HYDROCARBON MASS REMOVED TRENDS 200,000 - 90,000 --40000 E 0 total in lb Month-Year 4,500 4,000 3,50(} 3,000 1,5[)0 000 @�,500 c 1,000 500 0 '''''''''''''''''''''''-''''''''''''-''-'''''-'''''-'''''''''''''''' � �"^� '''''''''''''''-''''''�»v�s�'"�«���'''''''-''''''''''''''''''''''' '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' '''''-'''''-'''''''''''-'''''''''''''''''''''''''''''''''''''''' '''''''''''''''--''''-'''''''''-'''-''''-''-'''''''''''-'''''''' '''''''''''''''-'''''''''''''''''''''''''''''''''''''''''''''''' i-M ''''''''''''''''''-''''''''''''''''''''''''''''''''''''''-'''''''-1 - _ ----------------------------------------------------------------- | < .� }u- >a- }J' �� }u- ��- Month-Ye; NEPounds per Day 2 per. Mov. Avg. (Pounds per Day) seCnemomation Table 5-2 IProject Number 1803BK40 January 12, 2009 ' E2 C Pemediation Table 6 -1 TABLE 6 SUMMARY OF INFLUENT VAPOR ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield California TPH /G" MtBE B T E X TOTAL FID % Date ............................................................ ............................... ............................. (PP m mV mV Difference 01/31/05 1,747 7.3 7.0 70.0 1 42.0 34.0 1,900 1,300 46.15 02/14/05 840 6.0 ND 50.0 40.0 70.0 1,000 2,600 -61.54 03/07/05 4,937 20.0 ND 83.0 63.0 117.0 5,200 3,150 65.08 04/26/05 2,221 1.5 23.0 58.0 54.0 44.0 2,400 1,800 33.33 05/09/05 2,270 12.0 9.10 51.0 34.0 36.0 2,400 1,550 54.84 08/31/05 4,580 50.0 60.0 150.0 80.0 130.0 5,000 3,300 51.52 09/26/05 4,770 43.0 60.0 180.0 50.0 140.0 5,200 5,300 -1.89 10/17/05 1,907 7.0 18.0 33.0 50.0 42.0 2,050 11/22/05 1,209 5.0 15.0 36.0 50.0 42.0 1,352 12/12/05 1,659 9.0 24.0 31.0 52.0 59.0 1,825 01/24/06 918 3.2 8.70 12.0 28.0 33.0 1,000 03/07/06 348 ND ND 20.0 34.0 28.0 430 512 -16.02 04/25/06 1,909 15.0 28.0 .35.0 61.0 52.0 2,100 1,600 31.25 05/22/06 755 ND 10.0 22.0 38.0 15.0 840 800 5.00 06/27/06 367 ND 42 10.0 19.0 10.0 410 1,100 -62.73 07/24/06 530 ND 9.4 12.0 22.0 27.0 600 650 -7.69 08/25/08 626 ND 10.2 15.4 29.8 31.3 713 800 -10.88 09/22/08 567 ND 9.6 13.1 25.7 24.2 640 604 5.96 Avera a 1,787 14.9 19.7 49.0 42.9 51.9 9.46 TOTAL TOTAL Total 32,160 179 296 1 882 773 935 1 35,060 25,066 na = Not analyzed nd = Not detected at or above the .method dietection limit ppmv = Parts per million by volume PHg analysis method includes BTEX and MtBE SUMMARY OF TEDLAR BAG INFLUENT CONCENTRATIONS > 6,000 I I I I I I I I I I I I I I I I I I 0. 5.000 -- - - -' -- ----'----'----'-----'-------------------------------'----- CL I I I I I 1 C .- 4,000 _ _ _ _ _ _ _ L _ _ _ I I I I I I I I I I I I I I I I I I I I I I I 1 3,000 - - I - -r - - -� - - -r - -- I 1 ---- r----- - -r I - -- ----r---------------r---- •- �� I I 1 1 I I I I I I I 1 I I 1 1 I I I L t+ 2,000 _ _- ____ I _____ I _ _______,, 1 I 1 i 1 W I I I I I IL I IL I I I I 1,()00--- _J____ I L___ I J____ L __ I I __ _ L___ J____ I I I _ __J_______J_- __L___J____L____ I I I I 1 I 0 V 0 I \Oh -14D -19 h Month/DayYear ' E2 C Pemediation Table 6 -1 Project Number 1803BK26 January 12 2009 Project ry E2 Remediation Table 7 -1 TABLE 7 SUMMARY OF EFFLUENT VAPOR ANALYTICAL DATA MINIT STOP MARKET 2900 Union Avenue Bakersfield, California Date TPH /G MtBE B T v E ...... ............................... X TOTAL ............................... 01/31/05 1.50 0.00 0.00 0.00 0.12 0.10 1.72 02/14/05 0.40 0.00 0.00 0.00 0.00 0.00 0.40 03/07/05 2.80 0.00 0.00 0.02 0.00 0.00 2.82 04/26/05 0.60 0.00 0.00 1.02 0.00 0.00 1.62 05/09/05 0.40 0.00 0.00 0.00 0.00 0.00 0.40 08/31/05 4.40 0.00 0.80 0.50 0.00 0.50 6.20 09/26/05 0.10 0.00 0.00. 0.00 0.00 0.00 0.10 10/17/05 0.10 0.00 0.00 0.00 0.00 0.00 0.10 11/22/05 0.10 0.00 0.00 0.00 0.00 0.00 0.10 12/12/05 0.10 0.00 0.00 0.00 0.00 0.00 0.10 03/07/06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04/25/06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05/22/06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06/27/06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07/24/06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average 0.95 0.00 0.07 0.14 0.01 0.05 1.23 TOTAL Total 10.50 0.00 0.80 1.54 0.12 0.60 13.56 Notes: na = Not analyzed nd = Not detected at or above the method detection limit ppmv =Parts per million by volume E2 Remediation Table 7 -1 Praiect Number 1603BK26 January 12 2009 Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G E2C Remediation APPENDICES Third Quarter 2008 Groundwater Purge Data Sheets Third Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Fourth Quarter 2008 Groundwater Purge Data Sheets Fourth Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of- Custody Purge Water Transport Manifests and Recycling Certificates Vapor Analytical Laboratory Reports and Chain -of- Custody 'GeoTracker Upload Confirmation Reports Appendices Proiect Number 1803BK26 January 12, 2009 APPENDIX A Third Quarter 2008 Groundwater Purge Data Sheets E2C Remediation Appendix A E2C Remediation Groundwater Scientists : EnWronmental Consultants 5300 Woodmere Drive, Suite 105; Bakersfield, Califomia 93313 Telephone: (661) 831-6906 1 Facsimile: (661) 8314234 Water Quality Sampling Record and Well Development Data 1 .......... ....... ................... I ... ........... ......... ............. I .... ........ ................ SAMPLE IDI WELL t DEPTH TO WATER: If It 32 EzC REM. PROJECT*. X90-3 TOTAL DEPTH OF WELL-1 2SN (K PROJECT NAME. M ✓ 1 WELL DIAMETER; DATE SAMPLED: 7- 15' :,Q 8 CASING VOLUME. SAMPLED BY- PURGE MIETHCO• 4- TIME Ole0-010-0 0 -M- TEMP (F) pH (UNITS) SEC (mmhosl=) REMARKS (COLOR TURBIDITY, ETC.) INTAKE DEPTH Uff- (GPM) CUM. VOL GAL WELL VOL PUMPED 7.3:5 (o gS- 116 nlem-, Alc 0� '-7Z 3 9,9, -1k cleor , 'j, 0 71-v '.16 clear, w o c J w,o\ Well Capacity: 2"- 0.1632gakeftearfoot ,r - 0.6528 gallon/lInear foot 61 - 1.4688 gallar0near foot SAMPLED A FT. FINAL DEPTH TO WATER: 11S, 35 Fr. 3 CASING VOLUMES = q,3 a GALS. NOTES: 11 11 I E2G Remediation GroundwaterScendsts : SMronmenta/ Cons ultantS 5300 Woodmere Drive, Suite 105; Bakersfield, California 93313 Telephone: (661) 831 -66906 1 Facsimile: (661) 831 -6234 Water Quality Sampling Record and Well Development Data .......................................................................................................................................................................................................................... ............................... SAMPLE ID ! WELL a % DEPTH TO WATER: IC RSL PROJECT TOTAL DEPTH OF WELL: , PROJECT NAME: M tR T pS�O j� WELL DIAMETER; 7� DATE SAMPLED: _\ IS-6 O CASING VOLUME: SAMPLED BY: w h PURGE ME HOD• e 100'' _ . _$ . TIME _. TEMP (Fn pH (UNITS) SEC (mmhosi=) RBAARKS (COLOR TURHIDr1Y. ETC.) INTAKE OE°TH RATE (GPM) CUM. VCL (GAL) WELL VCL PUMPED 10, O C may. 3 .33 C - o as 7 y S. eta. e 5 g a u o eJa.- �� L.4 p k- Well Capadty- Z'. 0.1632 gallonllinear foot 4 - 0.6528 gadonlGnear toot 6"- 1.4688 galloMinear foot SAMPLM A Fr. FINAL DEPTH TO WATER: I' l 1 S FT. 3 CASING VOLUMES = _ � O LI / GALS• NOTES: L>Ll 2/1 C-A4 -e C n.4G,,.— s'7. E2C Remediation Groundwater Scientists : EWLonmental Consultants Water Quality Sampling Record 5300 Woodmere Drive, Suite 105; Bakersfield, Califamia 93313 and Well Development Data P Telephone: (661)..831 -0"906 / Facsimile: (661) 831 -6234 SAMPLE ID /WELL #:M - . DEPTH TO WATER: l & EZC REM. PROJECT a /803 TOTAL DEPTH OF WELL: 7t PROJECT NAME: M I A O 2 WELL DIAMETER: r� DATE SAMPLED: _\7— I5c' CASING VOLUME: OL - SAMPLED BY: J !rJ' V\ PURGE METH00: I'LL` {' �M. Y1�RY3tT}$.��f,.- �/�Q.ti1i�4.�'£.f' �� � �. .Lyi TEMP � ., pH _...� ... J.. SEC t � S.o•� REMARKS TIME (F") (UNITS) (mmhoslcin) (COLOR TURBIDITY, ETC.) INTAKE RATE CUM. V0L WELL VOL DEPTH (GPM) (GAL) PUMPED r n 1 7y, a s�f e J� Well Capacity: T - 0.16M gallarbinear foot . r - 0.6528 gallonflinear foot 6' - 1.4688 ganoMtnear fact `SAMPLED A 19 FT. FINAL 007H TO WATER: (� Im, Fr. 3 CASING VOLUMES = GALS._ NOTES: EZC Remediation GroundwaterSciendsts : Environmental Consultants Water Quality Sampling Record 5300 Woodmere Drive, Suite 105; Bakersfield, Califomia 93313 and Well Development Data Telephone: (661) 831 -6906 1 Facsimile: (661) 831 -6234 SAMPLE 1D 1 WELL T EIC RESL PROJECT p /903 11 PROJECT NAME: M 1 dl 1 T o2 DATE SAMPLED: —7— U51,0 SAMPLED BY: DEPTH TO WATER: r TOTAL DEPTH OF WELL: , U' 7, WELL DIAMETER; CASING VOLUME: PURGE METHOD: TIME TEMP (FL') pH (UNITS) SEC (=nhas1=) REMARKS (COLOR. TURBIDITf,ETC.) INTAKE DEPTH RATE (GPM) CUM.VOL (GAL) WELL VOL PUMPED - l:y 5 '77-7 rvo &J,,,- /0 ; G.w-� ,,.. eJo.- Well Capadty. Z1. 0.1632 gallonnriinear foot 4' - 0.6= gallaNgrtear feat 6' - 1.4688 gailon/Mear That SAMPLED A. I j t FT. FINAL DEPTH TO WATER: I f Y • J eC FT. 3 CASING VOLUMES = '1 , GALS. NOTES: E2G Rem ediation Groundwater Scientists : En ronmental Consultants 5300 Woodmere Drive, Suite 105; Bakersfield, Caliiomia 93313 Telephone: (661) 831 -6906 / Facsimile: (661) 831 -06234 ....................................................................... ............................... SAMPLE ID I WELL;P M(,/— EzC REM. PROJECT p lcqG 3 PROJECT NAME: M n i _ -o 2 DATE SAMPLED: �d B SAMPLED BY: W TIME 't.ao T ; k3 Water Quality Sampling Record and Well Development Data DEPTH TO WATER: I t, 38 TOTAL DEPTH OF WELL: WELL 0 CASING PURGE TEMP I pH I SEC Tn (UNITS) (mmhosl=) �O�C�IF�R#7 ' Well Capadty: 2■ - 0.1632 galonAlnear foot J C - 0.6528 gallonNnear foot 6■ 1.4688 gallonlGnear foot At'r REMARKS (COLOR- nJRSID(TI, ETC.) CleAr, rva ©) SAMPLED A Fr. RNAL DEPTH TO WATZ:;� ID-kt,40 Fr. 3 CASING VOLUMES GALS. I I Project /Number 1603BK26 January 12, 2009 APPENDIX B Third Quarter 2008 Groundwater Analytical Laboratory Report And Chain of Custody ' EZC Remediation Appendix B M M M M M M M M M M w M i M M M M M M PROVERA ANALYTICAL LABORATORIES Chain of Custody Form Client Name: y� Analysts Requested Sample Matrix Project Name: -- 0 a w m o Q 0. w r° m" r- 0 = LL F- o - o n. I I- o N °�° n_ w 0 > N Q W �. �, 0 Ln N a w 4 0 `��° < a w w , C) rn > !� m Soil Client Address: 5300 Woodmere Dr. Suite 105 Bakersfield, CA Project Manager: ` 1 C-1 fa w Acidified a Sampler Name: Sample Date Sample Time Sample Description and Container Type Comments U QI 00U- C.0 1 Ct _,oZ IV\L-J - y _ 10`39 Sampling Event: (,J V\/\ 0 EDF Type:GW Monitoring Other Turnaround Time Requested: 24 Hour 48 Hour 5 -Day Standard Relinquished By: Date: 7. Relinquished By: Date: Received B �Date: p Received By: Date: Laboratory Report Certification # 2606 CLIENT: E2C Remediation 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 TESTS: TPH Gas by EPA 8015M I I I P roue ra L_j' - Analytical Laboratories, Inc. Project Name: Minit Stop Matrix: AQ Sampled by: J. Irwin TPH g Analysis: 7/22/2008 Date of Report: 7/24/2008 Units: ug/l 7/15/2008 Sample #: 10028 -001 10028 -006 10028 -004 10028 -003 10028 -002 . 10028 -007 Date Sampled: 7/15/2008 7/15/2008 7/15/2008 .7/15/2008 7/15/2008 7/15/2008 DL ug/I Sample Description: Travel Blank MW -1 MW -2 MW4 MW -5 MW-6 TPH Gasoline ND ND ND ND ND ND 50.0 Surrogate Recovery % 96.2 96.7 94.8 99.2 98.6 94.3 Sample #: 10028 -005 Date Sampled: 7/15/2008 DL ug/I Sample Description: MW -3 TPH Gasoline 11,100 500.0 Surrogate Recovery % 95.3 DL = Detection Limit ND - Non - Detect at given DL r Alexander Candia 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 i ProVera J Analytical Laboratories, Inc. Certification # 2606 CLIENT: EZC Remediation 2.50. 1 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 0.50 1 Project ID : Minit Stop 0.50 1 Analysis Type: EPA Method 82608 0.50 1 Analysis Date: 7/2412008 0.50 1 Report Date : 7125/2008 0.50 1 Sample ID: 10028 -001 Travel Blank Analyte Result 5 Oxygenates t- Butanol (TBA) Tert-Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene ND Ethylbenzene ND m , p & o Xylenes ND Lead Scavengers Units Method RL Dilution Factor ug/L 2.50. 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 1,2 Dichloro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 47.1 94.2% 1,2- Dichloroethane -d4 46.4 92.9% Tolue a -d8 55.8 112% p- Brokhorobergene ( \ 57.1 114% PRncipal Analyst: Alexander Candia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5246 Fax: (661)827-5244 i ProVera 1 Analytical Laboratories, Inc. Certification # 2606 CLIENT: E2C Remediation 2.50 1 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 0.50 1 Project ID : Minit Stop 0.50 1 Analysis Type: EPA Method 82608 0.50 1 Analysis Date: 7/2412008 0.50 1 Report Date : 712512008 0.50 1 Sample 1D: 10028 -006 MW -1 0.50 1 Analyte Result 5 Oxygenates t- Butanol (TBA) Tert-Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene ND Ethylbenzene ND m , p & o Xylenes ND Lead Scavengers Units Method RL Dilution Factor ug/L 2.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 1,2 Dichloro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 54.9 110% 1,2- Dichloroethane -d4 55.0 110% Toluene -d8 55.9 112% p- Bromojluorobenzene (BFB) /—\ 56.7 113% ipal Analyst: Alexander Candia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera Atialytical Laboratories, hic. Certification # 2606 CLIENT: EzC Remediation 2.50 1 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 0.50 1 Project ID : Minh Stop 0.50 1 Analysis Type: EPA Method 8260B 0.50 1 Analysis Date: 7124/2008 0.50 1 Report Date : 7/2512008 0.50 1 Sample ED: 10028 -004 MW -2 0.50 1 Analyte Result 5 Oxygenates t- Butanol (TBA) Tert-Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene ND Ethylbenzene ND m , p & o Xylenes ND Lead Scavengers Units Method RL Dilution Factor ug/L 2.50 1 ug/L 0.50 1 uglL 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 1,2 Dichlbro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1 4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 54.3 109% 1,2- Dichloroethane -d4 55.1 110% Toluene -d8 50.0 100% p- BromgfluArobenzene (BFB) 48.5 96.9% Priewipal Analyst: Alexit1rder1randia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 �7 ! __.. �.; ' - - -- Pro Vera � Analytical Laboratories, Inc. Certification # 2606 CLIENT: E2C Remediation 2.50 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 1 Project ID : Minit Stop 0.50 Analysis Type: EPA Method 82606 ug/L Analysis Date: 712412008 1 Report Date : 712512008 0.50 Sample ID: 10028 -005 MW -3 ug/L Analyte Result 5 Oxygenates 0.50 t- Butanol (TBA) Tert-Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) . ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene 1,370 Ethylbenzene 145 m , p & o Xylenes 593 Lead Scavengers Units Method RL Dilution Factor ug/L 2.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 100 ug/L 0.50 10 ug/L 0.50 100 1,2 Dichloro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 57.5 115% 1,2- Dichloroethane -d4 61.7 123% Toluene -d8 58.8 118% p- Bromgfluorobenzene (BFB) 56.2 112% Analyst: Alexande?"Caindia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 i i Analytical Laboratories, Inc. Certification # 2606 CLIENT: E2C Remediation 2.50 1 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 0.50 1 . Project 1D : Minit Stop 0.50 1 Analysis Type: EPA Method 82608 0.50 1 Analysis Date: 7/2412008 0.50 .1 Report Date : 712512008 0.50 1 Sample ID: 10028 -003 MW -4 0.50 1 Analyte Result 5 Oxygenates t- Butanol (TBA) Tert -Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene ND Ethylbenzene ND m , p & o Xylenes ND Lead Scavengers Units Method RL Dilution Factor ug/L 2.50 1 ug/L 0.50 1 ug/L 0.50 1 . ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 .1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 1,2 Dlchloro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L. Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 54.4 109% 1,2- Dichloroethane -d4 55.2 110% Toluene -d8 56.9 114 % p-Bromgflyprobenzene (BFB) 56.6 113% Prid'Apal Analyst: Alexander Candia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 I ProVera Analytical Laboratories, bi.c. Certification # 2606 CLIENT: EZC Remediation 2.50 l 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 0.50 1: Project ID : Mlnit Stop 0.50 1 Analysis Type: EPA Method 8260B 0.50 1 Analysis Date: 712412008 0.50 1 Report Date : 712512008 0.50 1 Sample ID:' 10028 -002 MW -5 0.50 1 Analyte Result 5 Oxygenates t- Butanol (•TBA) Tert-Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene ND Ethylbenzene ND m , p & o Xylenes ND Lead Scavengers Units Method RL Dilution Factor ug/L 2.50 l ug/L 0.50 1 ug/L 0.50 1: ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 1,2 Dichloro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 41.2 62.3% 1,2- Dichloroethane -d4 41.0 81.9% Toluene -d8 53.1 106% p- Bromo*orAenzer^ (BFB) 53.4 107% Princloal Analyst: Alexander Candia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera - Analytical Laboratories, Inc. Certification # 2606 CLIENT: EZC Remediation 2.50 1 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 0.50 1 Project ID : Mlnit Stop 0.50 l Analysis Type: EPA Method 8260B 0.50 1 Analysis Date: 7/2412008 100%. Report Date : 712512008 50.0 Sample ID: 10028 -007 MW -6 1,4- Dichlorobenzene -d4 Analyte Result 5 Oxygenates t- Butanol (TBA) Tert-Butyl Alcohol ND Methyl Tert-Butyl Ether (MTBE) ND Diisopropyl Ether (DIPE) ND Ethyl Tert-Butyl Ether (ETBE) ND Tert-Amyl Methyl Ether (TAME) ND BTEX Components Benzene ND Toluene ND Ethylbenzene ND m, p & o Xylenes ND Lead Scavengers Units Method RL Dilution Factor ug/L 2.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 l ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 ug/L 0.50 1 1,2 Dichloro ethane (1,2 DCA) ND ug/L 1,2 Dibromo ethane (EDB) ND ug/L Internal Standards Results % Recovery Benzene, fluoro 50.0 100%. Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 57.2 114% 1,2- Dichloroethane -l4 57.1 114% Toluene -d8 51.6 103% p- Brorrpflyorobenzene (BF 50.7 101% Fmi'ipal Analyst: AlexandZF'Candia 0.50 1 0.50 1 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 8015M -TPHG %Recovery BFB II } f 97.3% MS 102% i 107% Provers Analytical Laboratories, Inc. EPA 8260B QA -QC Report EPA 8015M QA-QC Report Certification # 2606 CLIENT: E2C Remediation 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 Projects Covered by this QA -QC: Minit Stop Analysis Date: 7/24/2008 Matrix: AQ BFB: Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene- d5, chloro- 50.0 100% 1,4- Dichlorobenzened4 50.0 100% Surrogate Standards Methane, dibromofluoro- 52.3 105% 1,2- Dichloroethane -d4 51.4 103% Toluene-dg 47.9 95.8% p- Bromofluorobenzene (BFB) 56.2 112% IB: , Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene- d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 53.4 107% 1,2- Dichloroethaned4 56.9 114% Toluene -d8 55.3 111% p- Bromofluorobenzene (BFB) 51.4 103% MS: Results % Recovery 1, 1 -Dichloroethene 54.2 108% Trichloroethene 48.8 97.6% Chlorobenzene 48.6 97.2% Toluene 53.1 106% Benzene 57.4 115% p- Bromofluorobenzene (BFB) 47.9 95.8% MSD: Results %Recovery I,1- Dichloroethene 44.0 88.0% Trichloroethene 56.6 113% Chlorobenzene 56.0 112% Toluene 47.4 94.8% Benzene 56.2 112% p- Bromofluorobenzene (BFB) 54.0 108% 8015M -TPHG 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 %Recovery BFB 91.8% IB 97.3% MS 102% MSD 107% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Proiect Number lW3BK26 January M 2009 APPENDIX C Fourth Quarter 2008 Groundwater Purge Data Sheets E2C Remediation Appendix C 1 rGroundwater E - C Remediation Scientists : Environmental Consultants 5300 Woodmere Drive, Suite 105; Bakersfield, California 93313 Telephone: (661) 831 -6906 / Facsimile: (661) 831 -6234 Water Quality Sampling Record and Well Development Data 1 ........ ........................ ............ ............................... SAMPLE ID 1 WELL #: INI ( E.0 REM. PROJECT #: G 3 PROJECT NAME n"' �r DATE SAMPLED: is a 7 — 0 SAMPLED BY: J . C-/ NA-1 DEPTH TO WATER: 117. c TOTAL DEPTH OF WELL: I 5 WELL DIAMETER; r� CASING VOLUME: vL • O PURGE METHOD: ' y - _ TIME INTAKE DEPTH TEMP (F") pH (UNITS) SEC (mmhosldn) REMARKS (COLOR. TURBIDITY, ETC.) RATE (GPM) CUM. VOL (GAL) WELL VOL PUMPED 06 a � %, ��- ,' vv 68 -7. 11n S r: Well Capacity: 2' - 0.1632 gallon/linear foot 4' - 0.6528 galloNOnear foot 6' - 1.4688 gallon/Anear fnot 6 211 r r SAMPLED A FT. FINAL DEPTH TO WATER " 0 C) FT. 3 CASING VOLUMES i C7 GALS. NOTES: E2C Remediation GroundwaterScien>fsts : Environmental Consultants Water Quality Sampling Record 5300 Woodmere Drive, Suite 105; Bakersfield, Califamia 93313 and Well Develo ment Data Telephone: (661) 831 -6906 / Facsimile: (661) 831 -6234 p ....._. ......... ._ ................................................................................................... ............................... _...... ....._...... ...... ...._......... SAMPLE ID 1 WELL #: W - oZ DEPTH TO WATER: ' 7 E2C REM. PROJECT #: /803 TOTAL DEPTH OF WELL. PROJECT NAME: f3l r /` r :S'tcl WELL DIAMETER; DATE SAMPLED: /0 % — 0 g CASING VOLUME: SAMPLED BY: J . S'(G,/i %L PURGE METHOD: 4 ' T %►, MEW735-M F.9- R.. Well Capadty: Z*- 0.1632 plicniGnear foot 4 - 0.6628 PlIonllinear foot 6' - 1.4688 gallan/finear foot MPLED A , FT. FINAL DEPTH TO WATER 1 -7.7 FT. 3 CASING VOLUMES v ' V GALS. NOTES: t E2C Remediation Groundwater Scientists.: Environmental Consultants Water Quality Sampling Record 5300 Woodmere Drive, Suite 105; Bakersfield, California 93313 and Well Development Data Telephone: (661) 831 -8906 / Facsimile: (661) 831 -6234 sAmns ID i wELL #: NL 1--- 3 `... TEMP (FI) E2C REM. PROJECT g U3 PROJECT NAME RATE GPM) S tO WELL VOL PUMPED Idi 3 C) DATE SAMPLED: /f JC) % —U &' SAMPLED BY: 7 DEPTH To WATER: r 1-'l • (O TOTAL DEPTH OF WELL: �. U WELL DIAMETER; CASING VOLUME: n PURGE METHOD: A r I I C.- TIME t M-9 13MG`. `... TEMP (FI) pH (UNITS) SEC (mmhoslcin) REMARKS (COLOR TURBIDITY, ETC.) INTAKE DEPTH RATE GPM) CUM VOL (GAL) WELL VOL PUMPED Idi 3 C) 0 7 -O a k 3 _C� 70,0 6 55' C, kfw o Ckr- 1C3, 3p, ( ;�f 31 5-4 Well Capacity: 2*- 0.1632 galloNlinear foot 47 - 0.6528 gallommnear foot 6' - 1.4688 gailon/linear foot 1AMPLID A / FT. FINAL DEPTH TO WATER r l l r (Li FT. 3 CASING VOLUMES = 7 GALS. NOTES: I I E2C Remediation Groundwater Scientists : SMronmertta/ Consultants 5300 Woodmere Drive, Suite 105; Bakersfield, Caffiornia 93313 Telephone: (661) 831..8906 / Facsimile: (661) 831-6234 Water Quality Sampling Record and Well Development Data .............. I ... ...... I .................... .. ...... .. ..... ................ ........ ......... SAMPLE ID / WELL #: M DEPTH TO WATER: E,c REM. PROJECT �O 3 TOTAL DEPTH OF WELL- PROJECT NAME: WELL DIAMETER; _0� DATE SAMPLED: /0 7=0 P, CASING VOLUME: SAMPLED BY: PURGE METHOD: 4 r TIME TEMP (FO) PH (UNITS) SEC (mmhaslcin) REMARKS (COLOR TURBIDITY, ETC.) DEPTH RATE (GPM) CUM. VOL (GAL) WELL VOL PUMPED 9,�4-z P2 .1 (j C, -7, Cl 7,2(.3 1 �-,(e J v-,-e od -7 y -7. 1 7. ;Z( Wed Capacity: Lr - 0.1 pflonfinear ftnt r- 0.6528gaUonl0nearfoot S* - 1.4688 gabniflnear foot SAMPLED A Fr. FINAL DEPTH TO WATER.' V Fr. 3 CASING VOLUMES CIALLS• NOTES: E2C Remediation Groundwater Scientists : Ernironmerrtal Consultants 5300 Woodmere Drive, Suite 105; Bakersfield, California 93313 Telephone: (661) 831 -6906 / Facsimile: (661) 831 -6234 Water Quality Sampling Record and Well Development Data p _........_. .......... ......... .........._......................_.................................._...........-.......-......................................................_.................. ....._..........._............. SAMPLE ID I WELL E2C REM. PROJECT PROJECT NAME: r"I DATE SAMPLED: SAMPLED BY: —J V �i- S ` 1 t S P �G 7 —O . :r-e l r► DEPTH TO WATEi2: TOTAL DEPTH OF WELL: /-S-5-.00 WELL DIAMETER; 02 - CASING VOLUME: / PURGE METHOD: A, ` rf TIME ti '0 .t �1_ _ �.. TEMP (F) pH (UNITS) SEC (may =) REMARKS (COLOR TURBIDITY, ETC.) INTAKE DEPTH RATE (GPM) CUM. VOL GAL) WELL VOL PUMPED i1,2 3 3 �(� G ( C °r , t-1 7,5? S AvILt f Well Capacity: 2*- 0.1632 gallonftear foot 4' - 0.6528 galloMlnear That 6' - 1.4688 gallonignear foot f SAMPLED A Fr. FINAL DEPTH TO WATER: 13 l FT. NOTES: 3 CASING VOLUMES L6 1 GALS. Project Number 1803BK26 January 12, 2009 APPENDIX D Fourth Quarter 2008 Groundwater Analytical Laboratory Report And Chain of Custody E2C Pemediation Appendix D PROVERAN(1AL�ABbRS Chain of Custody Form Client Name: L �'IG�,: G4'0 n Analysis Requested Sample Matrix Project Name: n, STOP a °0 ¢ w �„ Y m _ ° (9 a. u, W °' o a g �- O > C1 co ¢ o c O C 04 ¢ a c O o ¢ ° "'S In (D C -� o cm t m Aqueous ^' Soil Client Address: ' 5300 Woodmere Dr. Suite 105 Bakersfield, CA Project Manager: �'� 1 C� OOL� w Acidified Sampler Name: , , V..,`.� Sample Date Sample Time Sample Description and Container Type Comments Iy ,-��5 7.' 3 4 / �e l k lip p 1G2S8�c�a a:3 Mw- 6 3y " 5 /v° -3c ©� 0 1 _ M I/. 3V wy v ►y YAV --3 --ouj ;0 C/O a2-7 -v� ll; 3v Vv��,- ����,� --•cam Sampling Event: ! L QC-, WYL.-N (0 (g EDF Type:GW Monitoring K Other Turnaround Time Requested: 24 Hour 48 Hour 5 -Day Standard Relinquished By: Date: l ,,Z 7 -ce Relinquished By: Date: Received By: Date:(, )a-) Received By: Date: � .....,.' n_..__ ProVera Analytical Laboratories, Inc, Laboratory Report Certification # 2606 CLIENT: E2C Remediation Project Name: Minit Stop 5300 Woodmere Drive, Suite 105 10258 -005 10258 -003 10/27/2008 10/27/2008 MW -3 MW4 10258 -002 10/27/2008 MW -5 Bakersfield, CA 93313 Matrix: AQ <50.0 Sampled by: J. Irwin TESTS: TPH Gas by EPA 8015M TPH g Analysis: 10/30/2008 <50.0 Date of Report: 11/6/2008 Units: ug/1 Sample #: Date Sampled: Sam le Description: 10258 -001 10/27/2008 Travel Blank 10258 -006 10/27/2008 MW -1 10258 -004 10/27/2008 MW -2 10258 -005 10258 -003 10/27/2008 10/27/2008 MW -3 MW4 10258 -002 10/27/2008 MW -5 10258 -007 10/27/2008 MW-6 DL ug /I TPH Gasoline <50.0 <50.0 <50.0 1,300 <50.0 <50.0 <50.0 50.0 Surrogate Recovery % 94.3 95.9 95.3 95.0 95.3 94.9 93.9 DL = Detection Limit P incipal Analyst: Alexander Candia 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 � � s i II i ProVera (- _J,._.f� Analytical Laboratories, Inc. Analysis For Volatile Compounds by EPA Method 8260B Client Sample ID: Travel Blank <2.50 Client: E2C Remediation Diisopropyl Ether (DIPE) <0.500 Date Received: 10/27/08 <0.500 Project: Minit Stop Benzene <0.500 Date Analyzed: 11/04/08 <0.500 Lab ID: P10258 -001 Total Xylenes <0.500 Matrix: Water <0.500 Instrument: GCMS1 ' Units: ug /L (ppb) Operator: Alexander Candia Result % Recovery: Lower Upper Surrogates: Limit: Limit: Dibromofluoromethane 42.4 84.8% 70.0% 130% 1,2- Dichloroethane -d4 44.8 89.6% 70.0% 130% Toluene -d8 46.9 93.8% 70.0% 130% 4- Bromofluorobenzene 51.0 102% 70.0% 130% Concentration Compounds: ug /L (ppb) Tert-Butyl Alcohol (TBA) <2.50 Methyl Tert-Butyl Ether (MTBE) <0.500 Diisopropyl Ether (DIPE) <0.500 Ethyl Tert-Butyl Ether (ETBE) <0.500 Tert-Amyl Methyl Ether (TAME) <0.500 Benzene <0.500 Toluene <0.500 Ethylbenzene <0.500 Total Xylenes <0.500 1,2- Dichloroethane (1,2 -DCA) <0.500 1,2- Dibromoethane (EDB) <0.500 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera Analytical Laboratories, Inc. Analysis For Volatile Compounds by EPA Method 8260B Client Sample ID: MW -1 Client: E2C Remediation . Date Received: 10/27/08 Project: Minit Stop Date Analyzed: 11/04/08 Lab ID: P10258 -006 Matrix: Water Instrument: GCMS1 Units: ug /L (ppb) Operator: Alexander Candia Result % Recovery: Lower Upper Surrogates: Limit: Limit: Dibromofluoromethane 47.5 94.9% 70.0% 130% 1,2- Dichloroethane -d4 51.1 102% 70.0% 130% Toluene -d8 48.3 96.6% 70.0% 130% 4- Bromofluorobenzene 48.9 97.8% 70.0% 130% Concentration Compounds: ug /L (ppb) Tert-Butyl Alcohol (TBA) <2.50 Methyl Tert-Butyl Ether (MTBE) <0.500 Diisopropyl Ether (DIPE) <0.500 Ethyl Tert-Butyl Ether (ETBE) <0.500 Tert-Amyl Methyl Ether (TAME) <0.500 Benzene <0.500 Toluene <0.500 Ethylbenzene <0.500 Total Xylenes <0.500 1,2- Dichloroethane (1,2 -DCA) <0.500 1,2- Dibromoethane (EDB) <0.500 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Surrogates: . Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert-Butyl Alcohol (TBA) Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichloroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 45.2 48.2 48.5 49.3 Concentration ug /L (ppb) <2.50 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 % Recovery: 90.3% 96.5% 97.0% 98.6% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% ProVera Analytical Laboratories, Inc. Analysis For Volatile Compounds by EPA Method 82608 Client Sample ID: MW -2 Client: E2C Remediation Date Received: 10/27/08 Project: Minit Stop Date Analyzed: 11/04/08 Lab ID: P10258 -004 Matrix: Water Instrument: GCMS1 Units: ug /L (ppb) Operator: Alexander Candia . Surrogates: . Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert-Butyl Alcohol (TBA) Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichloroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 45.2 48.2 48.5 49.3 Concentration ug /L (ppb) <2.50 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 % Recovery: 90.3% 96.5% 97.0% 98.6% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% Surrogates: Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert -Butyl Alcohol (TBA) Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichibroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 47.1 49.3 48.6 49.6 Concentration ug /L (ppb) 23.4 0.748 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 8.93 <0.500 <0.500 % Recovery: 94.2% 98.6% 97.2% 99.3% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% / J P rove ra ( r Analytical Laboratories, Inc. Analysis For Volatile Compounds by EPA Method 82608 Client Sample ID: MW -3 Client: E2C Remediation Date Received: 10/27/08 Project: Minit Stop Date Analyzed: 11/04/08 Lab ID: P10258 -005 Matrix: Water Instrument: GCMS1 Units: ug /L (ppb) Operator: Alexander Candia Surrogates: Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert -Butyl Alcohol (TBA) Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichibroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 47.1 49.3 48.6 49.6 Concentration ug /L (ppb) 23.4 0.748 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 8.93 <0.500 <0.500 % Recovery: 94.2% 98.6% 97.2% 99.3% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% Surrogates: Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert-Butyl Alcohol (TBA) Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichloroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 46.7 49.9 48.7 48.4 Concentration ug /L (ppb) <2.50 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 % Recovery: 93.5% 99.8% 97.4% 96.8% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% 1J l i ProVera _J Analytical Laboratories, Inc. Analysis For Volatile Compounds by EPA Method 82608 Client Sample ID: MW-4 Client: E2C Remediation Date Received: 10/27/08 Project: Minit Stop Date Analyzed: 11/04/08 Lab ID: P10258 -003 Matrix: Water Instrument: GCMS1 Units: ug /L (ppb) Operator: Alexander Candia Surrogates: Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert-Butyl Alcohol (TBA) Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichloroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 46.7 49.9 48.7 48.4 Concentration ug /L (ppb) <2.50 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 % Recovery: 93.5% 99.8% 97.4% 96.8% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% 1 Concentration Compounds: ug /L (ppb) Tert -Butyl Alcohol (TBA) <2.50 Methyl Tert-Butyl Ether (MTBE) <0.500 Diisopropyl Ether (DIPE) <0.500 ProVera <0.500 Tert-Amyl Methyl Ether (TAME) <0.500 Benzene Analytical Laboratories, Inc. Toluene <0.500 Analysis For Volatile Compounds by EPA Method 8260B <0.500 Total Xylenes Client Sample ID: MW -5 Client: E2C Remed_iation 1,2- Dibromoethane (EDB) <0.500 Date Received: 10/27/08 Project: Minit Stop Date Analyzed: 11/04/08 Lab ID: P10258 -002 Matrix: Water Instrument: GCMS1 Units: ug /L (ppb) Operator: Alexander Candia Result % Recovery: Lower Upper Surrogates: Limit: Limit: Dibromofluoromethane 43.6 87.2% 70.0% 130% 1,2- Dichlbroethane -d4 46.8 93.7% 70.0% 130% Toluene -d8 47.2 94.4% 70.0% 130% 4- Bromofluorobenzene 50.7 101% 70.0% 130% Concentration Compounds: ug /L (ppb) Tert -Butyl Alcohol (TBA) <2.50 Methyl Tert-Butyl Ether (MTBE) <0.500 Diisopropyl Ether (DIPE) <0.500 Ethyl Tert-Butyl Ether (ETBE) <0.500 Tert-Amyl Methyl Ether (TAME) <0.500 Benzene <0.500 Toluene <0.500 Ethylbenzene <0.500 Total Xylenes <0.500 1,2- Dichloroethane (1,2 -DCA) <0.500 1,2- Dibromoethane (EDB) <0.500 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Surrogates: Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert-Butyl Alcohol (TBA) . Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichloroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 44.4 46.1 47.4 51.2 Concentration ug /L (ppb) <2.50 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 % Recovery: 88.8% 92.3% 94.7% 102% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% P rove ra Analytical Laboratories, In.c. Analysis For Volatile Compounds by EPA Method 82608 Client Sample ID: MW -6 Client: E2C Remediation Date Received: 10/27/08 Project: Minit Stop Date Analyzed: 11/04/08 Lab ID:. P10258 -007 Matrix: Water Instrument: GCMS1 Units: ug /L (ppb) Operator: Alexander Candia Surrogates: Dibromofluoromethane 1,2- Dichloroethane -d4 Toluene -d8 4- Bromofluorobenzene Compounds: Tert-Butyl Alcohol (TBA) . Methyl Tert-Butyl Ether (MTBE) Diisopropyl Ether (DIPE) Ethyl Tert-Butyl Ether (ETBE) Tert-Amyl Methyl Ether (TAME) Benzene Toluene Ethylbenzene Total Xylenes 1,2- Dichloroethane (1,2 -DCA) 1,2- Dibromoethane (EDB) Result 44.4 46.1 47.4 51.2 Concentration ug /L (ppb) <2.50 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 % Recovery: 88.8% 92.3% 94.7% 102% 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Lower Limit: 70.0% 70.0% 70.0% 70.0% Upper Limit: 130% 130% 130% 130% 8015M -TPHG %R ecovery BFB 1 1 98.6 MS 82.4% MSD 86.6 Provers Phone: (661) 827 -5240 Fax: (661)827 -5244 Analytical Laboratories, Inc. EPA 8260B QA -QC Report EPA 8015M QA -QC Report Certification # 2606 CLIENT: E2C Remediation 5300 Woodmere Drive, Suite 105 Bakersfield, CA 93313 Projects Covered by this QA -QC: Minit Stop Analysis Date: 11/4/2008 Matrix: AQ BFB: Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene- d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 43.4 86.7% 1,2- Dichloroethane -d4 47.1 94.2% Toluene -d8 47.1 94.3% p- Bromofluorobenzene (BFB) 51.4 103% IB: Internal Standards Results % Recovery Benzene, fluoro 50.0 100% Benzene -d5, chloro- 50.0 100% 1,4- Dichlorobenzene -d4 50.0 100% Surrogate Standards Methane, dibromofluoro- 44.5 89.0% 1,2- Dichloroethane -d4 41.5 83.0% Toluene -d8 49.4 98.90/0 p- Bromofluorobenzene (BFB) 53.9 108% MS: Results % Recovery 1,1- Dichloroethene 40.7 81.4% Trichloroethene 48.9 97.9% Chlorobenzene 55.1 110% Toluene 50.9 102% Benzene 39.0 78.0% p-Bromofluorobenzene (BFB) 53.2 106% MSD: Results % Recovery 1, 1 -Dichloroethene 39.6 79.2% Trichloroethene 47.1 94.3% Chlorobenzene 52.1 104% Toluene 49.8 99.6% Benzene 39.5 79.0% p-Bromofluorobenzene (BFB) 51.0 102% 8015M -TPHG %R ecovery BFB 112% 1 98.6 MS 82.4% MSD 86.6 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 J : zAW ProVera Analytical Laboratories, Inc. Data Qualifiers & Definitions Al - More than one compound of similar molecule structure was. identified with equal probability ca - The calibration results for this range fell outside of acceptance criteria. c - The presence of the analyte indicated may be due to carryover from previous sample injections. d - The sample was diluted. Detection limits may be raised due to dilution. ds - The sample was diluted. Detection limits are raised due to dilution and surrogate recoveries may not be meaningful. dv - Insufficient sample was available to achieve normal reporting limits and limits are raised accordingly. fb - The analyte indicated was found in the method blank. The result should be considered an estimate. fc - The compound is a common laboratory and field contaminant. ht - The samples was extracted outside of holding time. Results should be considered estimates. ip - Recovery fell outside of normal control limits. Compounds in the sample matrix interfered with the quantitation of the analyte. j - The result is below normal reporting limits. The value reported is an estimate. J - The internal standard associated with the analyte is out of control limits. The reported concentration is an estimate. jl - The analyte result in the laboratory control sample is out of control limits. The reported concentration should be considered an estimate. js - The surrogate associated with the analyte is out of control limits. The reported concentration should be considered and estimate. Ic - The presence of the compound indicated is likely due to laboratory contamination. L - the reported concentration was generated from a library search. pc - The samples was received in a container not approved by the method. The value reported should be considered and estimate. pr - The sample was received with incorrect preservation. The value reported should be considered an estimate. df - The value reported fell outside the control limits established for this analyte. x - The pattern of peaks present is not indicative of gasoline y - The pattern of peaks present is not indicative of diesel. 'TPHg result does not include MTBE 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Pro]ect !Number 1603BK26 January 12, 2009 APPENDIX E Purge Water Transport Manifests and Recycling Certificates E2C Remediation Appendix E WOLC -O 5 11977 (Rev. 8/06) DESIGNATED FACILITY TO GENERATOR NON - HAZARDOUS 1 1. Generator ID Number 2. Page 1 of 3. Emergency Response Phone 4. Waste Tracidng Number 1 WASTE MANIFEST I s87— ONS' Q — Eo2G q— O/S 5. Generators Name and Mailing Address- Generator's Site Address (it different than mailing address) 1 �Or 5-rOP ()I'I. ov Ave_ �9IDo Gene t.! Phone: 6. Transporter 1 Company Name U.S. EPA ID Number /=cater o2G ;' ,' H Cgs ocx ;l 7. Transporter 2 Company Name U.S. EPA ID Number 8• D%i�� Facility Name and Site Address U.S. EPA ID Number � 6 Facility's Phone: G o a �Lo 3 .7 � 9. Waste Shipping Name and Description 10• Containers 11. Total 12. Until No. Type Quantity WIJVol. F � F � a� 2. Y y 3. 4, t '9 6 `i 4. 13. Special Handling instructions and Additional Information 14. GENERATOR'S CERTIFICATION: I certify the materials described above on this manifest are not subject to federal regulations for reporting proper disposal of Hazardous Waste. Generetor's/Offeror's Printed/Typed Name ftnatrue / Month Day Year 1 71 /510 j 15. international Shipments ❑ Import to U.S. El EV.1f,"m U.S. Port of entry /exfl: Transporter SI nature for exports only): Date leaving U.S.: 16. Transporter Acknowledgment of Receipt of Materials Transporter PrintedlTyped Name Signature Month Day Year I « 71IS165 Transporter 2 Printed/Typed Name 'Signature Month Day Year 17. Discrepancy 17a. Discrepancy Indication Space 1:1 Quantity ❑ Type ❑ Residue ❑ Partial Re)eclion ❑ Full Rejection Manifest Reference Number. 17b. Alternate Facility (or Generator) U.S. EPA ID Number LL Facility's Phone: 17c. Signature of Alternate FacRy (or Generator) Month Day Year W % i � WIR 18. Designated Facility Owner or Operator. Certification of receipt of materials covered by the manifest except as noted In Item 17a Printed(Typed Name l Signature Mach Day Year WOLC -O 5 11977 (Rev. 8/06) DESIGNATED FACILITY TO GENERATOR LpW WWuUUMWUN� LAMAKEMWLDJM330M L PHONE (661) 327 -3559 IC�IRecycling WEIGHMASTER CERTIFICATE VV'1 Indush4Inc. THIS IS TO CERTIFY that the following described commodity was weighed, measured, or counted by a weighmaster, whose signature Is on this certificate, who is a recognized authority of accuracy, as prescribed by Chapter 7 (commencing with Section, 12700) of Division 5 of the California Business and Professions Code, administered by the Division of Measurement Standards of the California Department of Food and Agriculture. C. CODE COMMODITY GROSS P Y- e - �- ,\) - TARE NET PRICE EXTENSION BILL OF SALE: I warrant that I am the owner (or owner's representative) of the material described hereon and have the right to sell same, that it contains no hazardous material as defined by Federal or State law and that for payment hereby received I sell and convey title to GOLDEN STATE METALS. X, AUTHORIZED SIGNATURE X WEIGHMASTER SIGNATURE CERTIFICATE OF-' RECYCLING .. REMEDY ENVIRONMENTAL -SERVICES This certificate is presented, as proof that the shipment listed has been Recycled/ reclaimed by re -melt or processing to recover intrinsic value. Remedy Environmental Services, Adams International and Adams affiliate companies certify that all local and federal laws were complied within the recycling. process. Generator: Mint Stop Receiving Facility: Remedy Environmental Services 2900 Union Ave 2000 E. Brundage. Lane Bakersfield, CA Bakersfield, CA 93307 Material Description: Generator Certified Non - Hazardous Date Received: 09/23/08 Water. Amount Received: 0050 units Manifest Number: Proiect Number IB03BK26 January 12, 2009 APPENDIX F Vapor Analytical Laboratory Reports And Chain of Custody E2C Remediation Appendix F PROVERA ANALYTICAL LABORATORIES Chain of Custody Form Client Name: E2C Remediation Analysis Requested Sample Matrix Project Name: i o a w m X w m i o a w w co M o a - _ "' o w Q = w 7 0 if w o J D Client Address: 5300 Woodmere Dr., Suite 101. Bakersfield, CA 93313 Project Manager: Phil Goalwin Sampler Name: Carlos Gonzales Sample Date Sample Time Sample Description and Container Type Comments tt Turnaround Time Requested: 24 Hour 48 Hour 5 -Day Standard Relinquished By: Date: '2f�� Relinquished By: Date: I Received By: Date: Received By: Date: V I �1 I ProVera ...... Analytical Laboratories, lnc. E2C Remediation Project:' Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: EPA Method TO -3 ANALYTICAL REPORT FOR SAMPLES Sample ID Laboratory ID Matrix Sample Date Date Received Influent 10138 -001 Air 8/25/2008 8/27/2008 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 t i. ProVera Analytical Laboratories, Inca E2C Remediation Project: Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goahvin Type: Sample ID: 10138 -001 Influent 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Dilution Analyte Result Units Reporting Limit Factor Notes Analysis Date Methyl Tert-Butyl Ether (MTBE) ND ppmV 0.01 1 8/27/2008 Benzene 10.2 ppmV 5.0 500 8/27/2008 Toluene 15.4 ppmV 5.0 500 8/27/2008 Ethylbenzene 29.8 ppmV 5.0 500 8/27/2008 m, p & o Xylenes 31.3 ppmV 5.0 500 8/27/2008 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 i ProVera Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: 10138 -001 Influent Analyte Result Units Dilution Notes Reporting Limit Factor Analysis Date TPH /Gas • 713 ppmV 10' 1000 8/27/2008 T I Analyst: Alexander Candia 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ' r I Provers Analytical Laboratories, In.c. E2C Remediation Project: Mind Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Blank 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Reporting IAnalyte Result Limit Units Propylene NO 0.01 ppmV Dichlorodifluoromethane (Freon 12) NO 0.01 ppmV Ethane, 1,2 -diC1- 1,1,2,2- tetraF (F -114) NO 0.01 ppmV Chloromethane NO 0.01 ppmV Ethene, chloro- (Vinyl Cloride) NO 0.01 ppmV 1,3 Butadiene NO 0.01 ppmV Methane, bromo- NO 0.01 ppmV Chloroethane NO 0.01 ppmV Trichloromonofluoromethane (Freon 11) NO 0.01 ppmV Isopropyl alcohol NO 0.01 ppmV Freon 113 NO 0.01 ppmV 1,1 Dichloroethene NO 0.01 ppmV Acetone NO 0.01 ppmV Carbon Disulfide NO 0.01 ppmV, Methylene Chloride NO 0.01 ppmV MTBE (Propane, 2- methoxy -2- methyl -) NO 0.01 ppmV trans 1,2 Dicloroethene NO 0.01 ppmV n- Hexane NO 0.01 ppmV Vinyl acetate NO 0.01 ppmV Ethane, 1,1- dichloro- NO 0.01 ppmV Methyl Ethyl Ketone NO 0.01 ppmV cis 1,2 dichloroethene NO 0.01 ppmV Tetrahydrofuran NO 0.01 ppmV Chloroform (Trichloromethane) NO 0.01 ppmV 1,1,1 Tricloroethane NO 0.01 ppmV Cyclohexane NO 0.01 ppmV Carbon Tetrachloride NO 0.01 ppmV Ethyl Acetate NO 0.01 ppmV Benzene NO 0.01 ppmV 1,2 Dichloroethane NO 0.01 ppmV 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera (`_J Analytical Laboratories, hic. E2C Remediation Project: Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Blank Analyte Result Reporting Units Limit n- Heptane ND 0.01 ppmV Trichloroethylene ND 0.01 ppmV Propane, 1,2- dichloro- ND 0.01 ppmV 1,4 Dioxane ND 0.01 ppmV Methane, bromodichloro- ND 0.01 ppmV cis-1-Propene, 1,3- dichloro- ND 0.01 ppmV MIBK (2;4- Pentanedione3 -(1- methylethyl)- ND 0.01 ppmV Toluene ND 0.01 ppmV trans -l- Propene, 1,3- dichloro- ND 0.01 ppmV Ethane, 1,1,2- tdchloro- ND 0.01 ppmV MBK ND 0.01 ppmV Tetra chloroethylene ND 0.01 ppmV Methane, dibromochloro- ND 0.01 ppmV Ethane, 1,2- dibromo- ND 0.01 ppmV Benzene, chloro- ND 0.01 ppmV Ethylbenzene ND 0.01 ppmV m +p- Xylene ND 0.01 ppmV o- Xylene ND 0.01 ppmV Styrene ND 0.01 ppmV Bromoform (Methane, tribromo -) ND 0.01 ppmV Ethane, 1,1,2,2- tetrachloro- ND 0.01 ppmV 4- Ethyltoluene ND 0.01 ppmV Benzene, 1,3,5 - trimethyl- ND 0.01 ppmV Benzene, 1,2,4 - trimethyl- ND 0.01 ppmV Benzene, 1,3- dichloro- ND 0.01 ppmV Benzene, 1,4- dichloro- ND 0.01 ppmV Benzyl chloride ND 0.01 ppmV Benzene, 1,2- dichloro- ND 0.01 ppmV Benzene, 1,2,4- tchloro- ND 0.01 ppmV 1,3- Butadiene, 1,1,2,3,4,4- hexachloro- ND 0.01 ppmV 5221 Woodmere Drive, ' Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera - Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Laboratory Control Standard Analyte Result Units Analyte Units % Recovery % Recovery Concentration Limits Propylene 101 ppmV 100 ppmV 101% 65-135 Dichlorodifluoromethane (Freon 12) 103 ppmV 100 ppmV 103% 65 -135 Ethane, 1,2 -diC1- 1,1,2,2- tetraF (F -114) 110 ppmV 100 ppmV 110% 65 -135 Chloromethane 103 ppmV 100 ppmV 103% 65 -135 Ethene, chloro- ('Vinyl Cloride) 99.4 ppmV 100. ppmV 99.4% 65-135 1,3 Butadiene 93.6 ppmV 100 ppmV 93.6% 65 -135 Methane, bromo- 110 ppmV 100 ppmV 110% 65 -135 Chloroethane 100 ppmV 100 ppmV 100% 65-135 Trichloromonofluoromethane (Freon 11) 101 ppmV 100 ppmV 101% 65 -135 Isopropyl alcohol 110 ppmV 100 ppmV 110% 65 -135 Freon 113 105 ppmV 100 ppmV 105% 65-135 1,1 Dichloroethene 98.7 ppmV 100 ppmV 98.7% 65-135 Acetone 94.3 ppmV 100 ppmV 94.3% 65 -135 Carbon Disulfide 95.6 ppmV 100 ppmV 95.6% 65 -135 Methylene Chloride 97.5 ppmV 100 ppmV 97.5% 65-135 MTBE (Propane, 2- methoxy -2- methyl -) 103 ppmV 100 ppmV 103% 65 -135 trans 1,2 Dicloroethene 108 ppmV 100 ppmV 108% 65 -135 n- Hexane 110 ppmV 100 ppmV 110% 65-135 Vinyl acetate 103 ppmV 100 ppmV 103% 65-135 Ethane, 1,1- dichloro- 99.4 ppmV 100 ppmV 99.4% 65 -135 Methyl Ethyl Ketone 93.6 ppmV 100 ppmV 93.6% 65 -135 cis 1,2 dichloroethene 110 ppmV 100 ppmV 110% 65 -135 Tetrahydrofuran 100 ppmV 100 ppmV 100% 65 -135 Chloroform (Trichloromethane) 101 ppmV 100 ppmV 101% 65 -135 1,1,1 Tricloroethane 106 ppmV 100 ppmV 106% 65 -135 Cyclohexane 103 ppmV 100 ppmV 103% 65 -135 Carbon Tetrachloride 97.0 ppmV 100 ppmV 97.0% 65 135 Ethyl Acetate 85.4 ppmV 100 ppmV 85.4% 65-135 Benzene 89.9 ppmV 100 ppmV 89.9% 65 -135 1,2 Dichloroethane 94.3 ppmV 100 ppmV 94.3% 65-135 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 i i Provera Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 9/10/2006 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Laboratory Control Standard Analyte Result Units Analyte Units % Recovery % Recovery Concentration Limits n- Heptane 106 ppmV 100 ppmV 106% 65-135 Trichloroethylene 103 ppmV 100 ppmV 103% 65 -135 Propane, 1,2- dichloro- 108 ppmV 100 ppmV 108% 65-135 1,4 Dioxane 109 ppmV 100 ppmV 109% 65-135 Methane, bromodichloro- 110 ppmV 100 ppmV 110% 65-135 cis -1- Propene, 1,3- dichloro- 111 ppmV 100 ppmV 111% 65 -135 MIBK (2,4- Pentanedione3 -(1- methylethyl)- 105 ppmV 100 ppmV 105% 65-135 Toluene 106 ppmV 100 ppmV 106% 65-135 trans -l- Propene, 1,3- dichloro- 103 ppmV 100 ppmV 103% 65-135 Ethane, 1,1,2 - trichloro- 108 ppmV 100 ppmV 108% 65 -135 MBK 103 ppmV 100 ppmV 103% 65 -135 Tetrachloroethylene 107 ppmV 100 ppmV 107% 65-135 Methane, dibromochloro- 108 ppmV 100 ppmV 108% 65-135 Ethane, 1,2- dibromo- 109 ppmV 100 ppmV 109% 65 -135 Benzene, chloro- 108 ppmV 100 ppmV 108% 65 -135 Ethylbenzene 109 ppmV 100 ppmV 109% 65-135 m +p- Xylene 110 ppmV 100 ppmV 110% 65-135 o-Xylene 110 ppmV 100 ppmV 110% 65 =135 Styrene 101 ppmV 100 ' ppmV 101% 65 -135 Bromoform (Methane, tribromo-) 105 ppmV 100 ppmV 105% 65 -135 Ethane, 1,1,2,2- tetrachloro- 106 ppmV 100 ppmV 106% 65-135 4- Ethyltoluene 103 ppmV 100 ppmV 103% 65-135 Benzene, 1,3,5- trimethyl- 108 ppmV 100 ppmV 108% 65 -135 Benzene, 1,2,4 - trimethyl- 109 ppmV 100 ppmV 109% 65 -135 Benzene, 1,3- dichloro- 110 ppmV 100 ppmV 110% 65-135 Benzene, 1,4- dichloro- 111 ppmV 100 ppmV 111% 65-135 Benzyl chloride 105 ppmV 100 ppmV 105% 65 -135 Benzene, 1,2- dichloro- 106 ppmV 100 ppmV 106% 65 -135 Benzene, 1,2,4 - trichloro- 103 ppmV 100 ppmV 103% 65 -135 1,3- Butadiene, 1,1,2,3,4,4- hexachloro- 107 ppmV 100 ppmV 107% 65-135 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 � � I ProVera Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Blank Analyte Result Reporting Units Limit TPH /G ND 0.01 ppmV 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 I P rove ra r j -± Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 9/10/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Laboratory Control Standard Analyte Result Units Analyte Units %Recovery % Recovery Concentration Limits TPH /Gasoline 4.03 ppmV 4.00 ppmV 101% 80 -120 5221 Woodmere Drive,. Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 l \: P rove ra ._��J: ! - Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop 5300 Woodmere Dr. Suite 105 Report Date: 9/10/2008 Bakersfield CA 93313 Project Mgr. Phil Goalwin Notes and Definitions T TPH /G result includes MBTEX compounds. 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 r �r rr �r r r r ■r r PROVERA ANALYTICAL LABORATORIES Chain of Custody Form Client Name: E2C Remediation Analysis Requested Sample Matrix Project Name: In o a w- r m m ° a w w �? � a o "I 0 M w w Q z r w U o J U- Air Client Address: 5300 Woodmere Dr., Suite 101. Bakersfield, CA 93313 Project Manager: Phil Goalwin Sampler Name: Carlos Gonzales Sample Date Sample Time Sample Description and Container Type Comments o .r� Y. X a 3-- p, ) © Cni- 61, e Turnaround Time Requested: 24 Hour 48 Hour 5 -Day Standard Relinquished By: Date: -z�o Relinquished By: Date: Received By: Date: �__� Received By: Date: .f r -I. Provera �`_� .. Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: EPA Method TO -3 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ANALYTICAL REPORT FOR SAMPLES Sample ID Laboratory ID Matrix Sample Date Date Received Influent P10193 -001 Air 9/2212008 9/24/2008 Effluent P10193-002 Air 9/22/2008 9/24/2008 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 t Provers Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: P10193 -001 Influent Analyte Result Units Dilution Notes Reporting Limit Factor Analysis Date Methyl Tert-Butyl Ether (MTBE) ' Benzene Toluene Ethylbenzene m, p & o Xylenes t � ' Principal Analyst: Alexander Candia ND ppmV 0.01 1 9/24/2008 9.61 ppmV 5.0 500 9124/2008 13.1 ppmV 5.0 500 9124/2008 253 ppmV 5.0 500 9/2412008 24.2 ppmV 5.0 500 9/24/2008 ' 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ' P rove ra Analytical Laboratories, Inc. 1 E2C Remediation Project: Minit Stop Report Date: 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: P10193 -002 Effluent 1 Analyte Result Units Dilution Notes Reporting Limit Factor Analysis Date Methyl Tert-Butyl Ether (MTBE) Benzene Toluene Ethylbenzene m, p & o Xylenes ' Princi I Analyst: Alexander Candia ND ppmV 0.01 1 9/24/2008 ND ppmV 0.01 1 9/24/2008 ND ppmV 0.01 1 9/24/2008 ND ppmV 0.01 1 9/24/2008 ND ppmV 0.01 1 9/24/2008 ' 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 10/812008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Result Units Dilution Notes Reporting Limit Factor Analysis Date 640 ppmV 10 1000 9/24/2008 T 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 Sample ID: P10193 -001 Influent Analyte TPH /Gas 1 LU . Principal Analyst: Alexander Candia Result Units Dilution Notes Reporting Limit Factor Analysis Date 640 ppmV 10 1000 9/24/2008 T 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 .. I ah _ � I P rove ra LI) - Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type:. Sample ID: P10193 -002 Effluent Analyte Result Units Dilution Notes Reporting Limit Factor Analysis Date TPH /Gas ND ppmV 0.01 1 9124/2008 T Princl Analyst: Alexan a andia 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 i i P rove ra - Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin - Type: Sample ID: Blank FA na ;e Result Reporting Units Limit Propylene ND 0.01 ppmV Dichlorodifluoromethane (Freon 12) ND 0.01 ppmV Ethane, 1,2 -diC1- 1,1,2,2- tetraF (F -114) ND 0.01 ppmV Chloromethane ND 0.01 ppmV Ethene, chloro - (Vinyl Cloride) ND 0.01 ppmV 1,3 Butadiene ND 0.01 ppmV Methane, bromo- ND 0.01 ppmV Chloroethane ND 0.01 ppmV Trichloromonofluoromethane (Freon 11) ND 0.01 ppmV Isopropyl alcohol ND 0.01 ppmV Freon 113 ND 0.01 ppmV 1,1 Dichloroethene ND 0.01 ppmV Acetone ND 0.01 ppmV Carbon Disulfide ND 0.01 ppmV Methylene Chloride ND 0.01. ppmV MTBE (Propane, 2- methoxy -2- methyl -) ND 0:01 ppmV trans 1,2 Dicloroethene ND 0.01 ppmV n- Hexane ND 0.01 ppmV Vinyl acetate ND . 0.01 ppmV Ethane, 1,1- dichloro- ND 0.01 ppmV Methyl Ethyl Ketone ND 0.01 ppmV cis 1,2 dichloroethene ND 0.01 ppmV Tetrahydrofuran ND 0.01 ppmV Chloroform (Trichloromethane) ND 0.01 ppmV 1,1,1 Tricloroethane ND 0.01 ppmV Cyclohexane ND 0.01 ppmV Carbon Tetrachloride ND 0.01 ppmV Ethyl Acetate ND 0.01 ppmV Benzene ND 0.01 ppmV 1,2 Dichloroethane ND 0.01 ppmV 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 AmilL P rove ra Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Blank Analyte Result Reporting Limit Units n- Heptane ND 0.01 ppmV Trichloroethylene ND 0.01 ppmV Propane, 1,2- dichloro- ND 0.01 ppmV. 1,4 Dioxane NO 0.01 ppmV Methane, bromodichloro- NO 0.01 ppmV cis-1-Propene, 1,3- dichloro- NO 0.01 ppmV MIBK ( 2, 4- Pentanedione3- (1- methylethyl)- NO 0.01 ppmV Toluene ND 0.01 ppmV trans -l- Propene, 1,3- dichloro- NO 0.01. ppmV Ethane, 1,1,2 - trichloro- NO 0.01 ppmV MBK ND 0.01 ppmV Tetrachloroethylene ND 0.01 ppmV Methane, dibromochloro- NO 0.01 ppmV Ethane, 1,2- dibromo- NO o.61 ppmV Benzene, chloro- ND 0.01 ppmV Ethylbenzene ND 0.01 ppmV m +p- Xylene ND 0.01 ppmV o-Xylene ND 0.01 ppmV Styrene ND .0.01 ppmV Bromoform (Methane, tribromo -) ND 0.01 ppmV Ethane, 1,1,2,2- tetrachloro- ND 0.01 ppmV 4- Ethyltoluene ND 0.01 ppmV Benzene, 1,3,5 - trimethyl- ND 0.01 ppmV Benzene, 1,2,4 - trimethyl- ND 0.01 ppmV Benzene, 1,3- dichloro- ND 0.01 ppmV Benzene, 1,4- dichloro- ND 0.01 ppmV Benzyl chloride ND 0.01 ppmV Benzene, 1,2- dichloro- ND 0.01 ppmV Benzene, 1,2,4 - trichloro- NO 0.01 ppmV 1,3- Butadiene, 1,1,2,3,4,4- hexachloro- ND 0.01 ppmV 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 i OOL: :� ProVera U -- Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 1018/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Laboratory Control Standard Analyte Result Units Analyte Units % Recovery %Recovery Concentration Limits Propylene 97.8 ppmV 100 ppmV 97.8% 65-135 Dichlorodifluoromethane (Freon 12) 95.6 ppmV 100 ppmV 95.6% 65 -135 Ethane, 1,2 -diC1- 1,1,2,2- tetraF (F -114) 97.3 ppmV 100 ppmV 97.3% 65 -135 Chloromethane 90.4 ppmV 100 ppmV 90.4% 65 =135 Ethene, chloro - (Vinyl Cloride) 94.4 ppmV 100 ppmV 94.4% 65 -135 1,3 Butadiene 98.8 ppmV 100 ppmV 98.8% 65-135 Methane, bromo- 92.7 ppmV 100 ppmV 92.7% 65-135 Chloroethane 103 ppmV 100 ppmV 103% 65 -135 Trichloromonofluoromethane (Freon 11) 104 ppmV 100 ppmV 104% 65-135 Isopropyl alcohol 101 ppmV 100 ppmV 101% 65 -135 Freon 113 100 ppmV 100 ppmV 100% 65 -135 1,1 Dichioroethene 98.6 ppmV 100 ppmV 98.6% 65 -135 Acetone 96.3 ppmV '100 ppmV 96.3% 65 -135 Carbon Disulfide 94.2 ppmV 100 ppmV 94.2% 65-135 Methylene Chloride 90.1 ppmV 100 ppmV 90.1% 65-135 MTBE (Propane, 2- methoxy -2- methyl -) 86.6 ppmV 100 ppmV 86.6% 65 -135 trans 1,2 Dicloroethene 98.6 ppmV 100 ppmV 98.6% 65-135 n- Hexane 102 ppmV 100 ppmV 102% 65 -135 Vinyl acetate 107 ppmV 100 ppmV 107% 65 -135 Ethane, 1,1- dichloro- 95.4 ppmV 100 ppmV 95.4% 65-135 Methyl Ethyl Ketone 97.8 ppmV 100 ppmV 97.8% 65 -135 cis 1,2 dichloroethene 95.3 ppr-AV 100 ppmV 95.3% 65 -135 Tetrahydrofuran 92.6 ppmV 100 ppmV 92.6% 65-135 Chloroform (Trichloromethane) 97.7 ppmV 100 ppmV 97.7% 65 -135 1,1,1 Tricloroethane 94.5 ppmV 100 ppmV 94.5% 65-135 Cyclohexane 93.0 ppmV 100 ppmV 93.0% 65-135 Carbon Tetrachloride 97.5 ppmV 100 ppmV 97.5% 65 -135 Ethyl Acetate 94.5 ppmV 100 ppmV 94.5% 65-135 Benzene 91.3 ppmV 100 ppmV 91.3% 65 -135 1,2 Dichloroethane 91.8 ppmV 100 ppmV 91.8% 65 -135 5221 Woodmere Drive, Bakersfield, CA 9331.3 Phone: (661) 827 -5240 Fax: (661)827 -5244 J ProVera �) .....�' Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 1018/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -15 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Laboratory Control Standard Analyte Result Units Analyte Units %Recovery % Recovery Concentration Limits n- Heptane 103 ppmV 100 ppmV 103% 65-135 Trichloroethylene 102 ppmV 100 ppmV 102% 65 -135 Propane, 1,2- dichloro- 983 ppmV 100 ppmV 98.7% 65-135 1,4 Dioxane 99.7 ppmV 100 ppmV 100% 65-135 Methane, bromodichloro- 98.5 ppmV 100 ppmV 98.5% 65 -135 cis-1-Propene, 1,3- dichloro- 94.3 ppmV 100 ppmV 94,3% 65 -135 MIBK (2,4- Pentanedione3 -(1- methylethyl)- 97.8 ppmV 100 ppmV 97.8% 65-135 Toluene 104 ppmV 100 ppmV 104% 65-135 trans-1-Propene, 1,3- dichloro- 102 ppmV 100 ppmV 102% 65-135 Ethane, 1,1,2 - trichloro- 109 ppmV 100 ppmV 1096% 65 -135 MBK 101 ppmV 100 ppmV 101% 66 -135 Tetrachloroethylene 109 ppmV 100 ppmV 109% 65-135 Methane, dibromochloro- 103 ppmV 100 ppmV 103% 65-135 Ethane, 1,2- dibromo- 94.6 ppmV 100 ppmV 94.6% 65 -135 Benzene, chloro- 92.1 ppmV 100 ppmV 92.1% 65 -135 Ethylbenzene 95.6 ppmV 100 ppmV 95.6% 65 -135 m +p- Xylene 96.7. ppmV 100 ppmV 96.7% 65 -135 o-Xylene 88.8 ppmV 100 ppmV 88.8% 65 -135 Styrene 98.9 ppmV 100 ppmV 98.9% 65 -135 Bromoform (Methane, tribromo-) 97.5 ppmV 100 ppmV 97.5% 65 -135 Ethane, 1,1,2,2- tetrachloro- 86.3 ppmV 100 ppmV 86.3% 65-135 4- Ethyltoluene 94.5 ppmV 100 ppmV 94.5% 65-135 Benzene, 1,3,5 - trimethyl- 96.8 ppmV 100 ppmV 96.8% 65 -135 Benzene, 1,2,4 - trimethyl- 94.5 ppmV 100 ppmV 94.5% 65 -135 Benzene, 1,3- dichloro- 97.2 ppmV 100 ppmV 97.2% 65 -135 Benzene, 1,4- dichloro- 103 ppmV 100 ppmV 103% 65-135 Benzyl chloride 101 ppmV 100 ppmV 101% 65 -135 Benzene, 1,2- dichloro- 100 ppmV 100 ppmV 100% 65 -135 Benzene, 1,2,4 - trichloro- 100 ppmV 100 ppmV 100% 65 -136 1,3- Butadiene, 1,1,2,3,4,4- hexachloro- 99.7 ppmV 100 ppmV 99.7% 65-135 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 ProVera \) - Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 1 10/8/2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3 Bakersfield CA 93313 Project Mgr. Phil Goalwin Type: Sample ID: Blank Analyte Result Reporting Limit Units TPH /G ND 0.01 ppmV 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 1 1 1 1 i r ProVera Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop Report Date: 1018!2008 5300 Woodmere Dr. Suite 105 Analysis EPA Method TO -3' Bakersfield CA 93313 Project Mgr. Phil Goahvin Type: tSample ID: Laboratory Control Standard Analyte Result Units Analyte Units % Recovery %Recovery Concentration Limits 4.59 ppmV 4.0 ppmV 115% 80-120 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827 -5244 �, P rove ra Analytical Laboratories, Inc. E2C Remediation Project: Minit Stop 5300 Woodmere Dr. Suite 105 Report Date: 10/8/2008 Bakersfield CA 93313 Project Mgr. Phil Goalwin Notes and Definitions T TPH /G result includes MBTEX compounds. 5221 Woodmere Drive, Bakersfield, CA 93313 Phone: (661) 827 -5240 Fax: (661)827-5244 Proiect Number 1803BK26 January 12. 2009 APPENDIX G GeoTracker Upload Confirmation Reports E2C Remediation Appendix F IeoTracker ESI https: // geotracker .waterboards.ca.gov /esi /upload _geoedd.asp ?cmd-- Wloa... ' STATE WATER RESOURCES CONTROL BOARD GEOTRAC"KER ESI 10/13/2008 10:24 AM UPLOADING A GEO_REPORT FILE ' SUCCESS ' Your GEO_REPORT file has been successfully submittedl ' Submittal Tyne: GEO_REPORT Report Title: 2Q08 GWM & Remediation Status Report ' Report Type: Report Date: Monitoring Report - Quarterly 10/6/2008 Facility Global ID: T0602993722 Facility Name: MINIT STOP MARKET ' File Name: Minit Stop 2nd Q 08 QMR RSR 10- 6- 08.pdf Company Name: E2C Remediation, LLC ' Username: E2C REMEDIATION, LLC IP Address: 71.146.144.190 Submittal Date/Time: 10/13/2008 10:23:48 AM ' Confirmation Number: 8857060313 Copyright © 2008 State of California 1 11 of 1 10/13/2008 10:24 AM UoTracker ESI https : / /geotracker.waterboards.ca. gov /esi/upload _geoedd. asp ?cord= uploa... ISTATE WATER RESOURCES CONTROL BOARD -MMM- off GE0TRAL;&ER4'ES1 ' UPLOADING A GEO_WELL FILE, t 1 1 t � 1 ' 1 of 1 SUCCESS Processing is complete. No errors were found! Your file has been successfully submitted! Submittal Type: GEO WELL Submittal Title: 2008 GEO_WELL Facility Global ID: T0602993722 Facility Name: MINIT STOP MARKET File Name: GEO WELLzip Organization Name: E2C Remediation, LLC Username: E2C REMEDIATION, LLC IP Address: 71.146.144.190 Submittal Date /Time: 10/13/2008 10:34:27 AM Confirmation Number: 6930785238 Copyright © 2008 State of Califomia 10/13/2008 10 :34 AN