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HomeMy WebLinkAboutHAZARDOUS WASTE ~ :.~ 0 ~- -~ o//~'~ ~_?~ PHONEO ' I:;~:=:0~"~ ¢' ~'¢~ ~ ~ Z:~ ~R~URNEOcALL ~0 -~ ~ ~? ~:~ ~ PHONE · , · m~'> ~ ' .... '"' ~ ~L~SECALL  .:,.. ~ F4 ESSAGE WILL CALL 2 ~ ~ CAME TO SEE YOU 0 ~ WANTS TO ~ ~SIGNEO ~ TOPS ~ FORM 4003~. ~ ~ i RETURNEO , - ' YO~q CALL 'Z ~ ~ - ~ 'J - - . SEE i - OL~ AIRDILL FOR DOMESTIC 8NIPMEDrO MIrNIM ~NE COMTIMEMTAL U. SA., A~MA AMD NAWAO. PACkAgE gu~s~s~c~u~M~ '1 ~t~L T~ACIINGNUMBE~ ~ ' , -:' · .: ' I(z09' ). 453-9631 ~' Dolores Gough 1(805) 861'3636 .~:RAZ.~h ~ a55CClalES.. " .;. Kern' County Envtron,nental Healtl~ Dept. ~;.,oo h ~INERY.' ' · · .2700 "H" Street, Suite 300 . ~OU! ~LLINI REFEIEN~E INFOIMATION (FIR~T 24 CHA~CTER~ ~ll APPel ON INVOICE.) IF HOLD FOR ~CK-UP, ~ FED~ ~ ~ 8 D .... :D n3 El~x 2~C..' S~tiod5 ~. I REV.ION DATE _to. ~ P~O IN U ~ FXEM ~..:~'~?.~,~.~.-,, .,~,.~.~.%..- ,~ ' .~ '. ~ .~ .... ",~ ': ~ ., ,~ ~' .~ ~.--' ,~..~ .?~.:~ --~, ~.~ . ~'-7/ ' .. · TO. :.. ..... ~ ' SUBJECT : H~P Bi~ble Work Request ~ 'invoice: · Ser~ce Perfor~ed/Pr°vided: ~ ~,~ Date of Set.ce: O/iqBq '- // Billable Hours: GARY J. WICKS 2700 M Street, Suite 300 Agency Olrector Bekerlfleld, CA 93301 (805) 861-3502 ,.. ,~..~..~.,-.;~..~.. Telephone (805) 861-3636 .;;,/~~.._ Telecopler (805) 861-3429 STEVE McCALLE¥ Director RESOURCE ~~:.ENT AG ENCY January 30, 1990 Lance - Kashiam and Company 1100 West Shaw Avenue Fresno, CA 93711 ATTN: Ed Kashian SUBJECT: Location : Arrow Street and Gilmore Avenue (Parcel #332-100-15), Bakersfield, CA Known As : Proposed Office Club - Costco Expansion Gentlemen: This letter confirms the completion .of site investigation and remedial action at the above site. With the provision that the information provided to this agency was accurate and representative of existing conditions, it is the position of this office that no further action is required at this time. Please be advised that this letter does not relieve you of any liability under the California Health and Safety Code or Water Code for past, present, or future operations at the site. Nor does it relieve you of the responsibility to clean up existing, additional, or previously unidentified conditions at the site which cause or threaten to cause pollution or..nuisance or otherwise pose a threat to water quality or public health. Additionally,'be advised that changes in the present or proposed use of the site may require further site characterization and mitigation activity. It is the property owner's responsibility to notify this agency of any changes in report content, future contamination findings, or site usage. If you have any questions regarding this matter, please contact Dolores Gough at (805) 861-3636. tCh~ri s Burger,'lT. E.~. S. Program Manager Environmental Health Services Department CB:cas \costco.cio DON E. KEITH TRANSPORTATION 2990 PIERCE RD., BAKERSFIELO, CA 93308 (805) 322-5031 1133 CHITTENDEN AVE.. CORCORAN, CA 93212 (209) 992-3155 January 25, 1990 Mr. Steve McCalley Resources Management Agency .2700 M Street; Suite 300 Bakersfield, CA. 93301 Dear Mr. McCalley, I am wrlttlng t}~ls ]ettc~r to .i. nform you that today, January 25, 1990, we moved the pile of vacuum bottoms/ dirt in qu~s~ti~z~n from the five acre partial known as property ~ # 332-100-15 to a location adjacent to the partial in question. We placed the mixture on top of thick plastic tarps as well as covered the pile with plastic tarps. Be it known that the pile will remain as is and will be handled according to the rules of the Health Department. We are at this t_i~me#reqt~esting5a~ letter of remediation on the property 332-100-1 . ~ Your attention to this matter would be greatly ~R~/IN~ THF TRI ICKINf; IN~[JSTRY SINCE 1 940 GARY J. WICKS 2700 M Street, Suite 300 Agency Olrector Bakerelleld, CA 93301 (805) 861-3502 ..,.., ...... Telephone (805) 861-3636 STEVE McCALLEY ,,/.-" ' " "~:-:. Telecopter (805) 861-3429 Director RESOURCE ~~:..E N T AGENCY November 20, 1989 Lance- Kashian & Company 1100 West Shaw Avenue Fresno, CA 93711- Attention: Ed Kashian Subject: Site Assessment Report, Proposed Office Club- Costco Expansion, Arrow Street and Gilmore Avenue, Bakersfield, California Gentlemen: In reviewing the subject report prepared by Krazan and Associates, this Department concurs with Krazan's conclusions and recommendations. A "closure letter" from this Department may be issued at your request after the excavated soil has been properly handled. If you have any questions regarding this matter, please call me at (805) 861-3636. Sincerely, Dolores Gough Hazardous; Materials Specialist Hazardous; Materials Management Program DG:cd cc: Robert Martin, Krazan & Associates dolores\lance.let KRAZAN a ASSOCIA£ES, INC. ,Construction Testing and Inspection Geotechnical Investigations Environmente, Engineer,ng ~ ~--~ _~ Laboratory Soils Testing Monitoring Wells September 25, 1989 Project No. E89-039 Lance-Kashian & Company Attn: Mr. Ed Kashian 1100 West Shaw Avenue -.Fresno, California 93711 RE: Recommendations July 1989 Report Proposed Office Club-Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California Gentlemen, In accordance with your authorization and the requests of the County of Kern Department of Environmental Health Services, we are submitting our recommendations following the above referenced investigation. It is our hope that Kern County w:ill quickly respond to our recommendations so that this situation may be resolved, and the pending development may begin as soon as possible. SITE DESCRIPTION & LOCATION The subject site is a rectangular shape property encompassing approximately 5 acres south of the existing Costco Home Club development. It !is currently a portion of the Don Keith Trucking Company yard. The property is located on the southwest corner of Arrow Street and Gilmore Avenue in a commercial and light industrial area adjacent to Highway 99 in Bakersfield, California (See Vicinity Map). According to the U.S Geological Survey 7.5 minute Oildale, California topographic quadrangle map, the property occupies a portion of the northeast 1/4 of the southeast 1/4 of Section 23, T29S, R27E, Mount Diablo Baseline and Meridian. SITE HISTORY A March 22, 1989 Level I Hazardous Substance Site Assessment (HSSA) Report was completed for the proposed Office Club - Costco Expansion. The site is located at the southwest corner of Arrow Street and Gilmore Avenue in Bakersfield, California. The Level 1 HSSA was requested to identify any obvious toxic or hazardous materials at or near the site. Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Project No. E89-039 Page No. 2 During this investigation, soil samples were obtained from beneath areas that exhibited signs of minor surface contamination. An additional sample was obtained in an area that had been covered by firewood and where a substance known as "vacuum bottoms" was reported to exist. The results of these sampling are presented in the following ~lable. Based on these results it was determined that the surface contamination noted in a few areas on site had not migrated very far vertically into the soil (one-half to two feet). It was also concluded that there had been some leaching of hydrocarbons i.nto the soil beneath the vacuum bottoms and that further testing would be necessary to determine the extent of the vacuum bottoms and any materials that may have leached from it. At the time of the Level I HSSA, piles of firewood belonging to Swen's Firewood occupied the northeast portion of the subject site. The site surface was covered by a layer of cracked asphalt and a moderate weed growth was growing up from the cracks through the asphalt. Out-of-service tanks trailers owned by Don Keith Trucking occupied the southwest portion of the subject site. Several areas of surface discoloration were noted including a ten square foot area located in the southeast portion of the subject property. The discoloration appeared to be motor oil or waste oil and was confined to the asphalt and upper fewer inches of soil. During the Level I HSSA, soil samples were obtained for chemical analysis. The results of those analyses are detailed in Table I. For the locations of the samples obtained, please refer to Figure 2. KRAZAN & ASS OCIATES, INC. Project No. E89-039 Page No. 3 TABLE I Concentrations of Petroleum Constituents in Soils Level I HSSA Report March 22, 1989 Proposed Office Club/Costco Expansion Bakersfield, California (Concentrations in parts per million) Test Method and Constituents Sample #1 Sample #2 Sample #4 Sample #6 Sample #7 Sample #8 @ 1.5' @ 2.5' @ 2.5' Gl.0' @1.5' @ 3.5' EPA 9071: Oil & Grease 65 · 40 1,015 EPA 7420: Total Lead 2.1 2.0 2.0 · · · DOHS LUFT: Total Petroleum Hydrocarbons · · ND ND ND ND (Diesel) EPA 8020: Benzene ° ° · · N D N D Toluene ° · · · N D N D Ethylbenzene · · · · ND ND Total Xylenes · · · · ND ND Isopropylbenzene · ° o · N D N D EPA 8015M: Total Petroleum · · · · ND ND Hydrocarbons · ° ° · N D N D (Gas) Note: Sample Nos. 3 and 5 were not analyzed. ND = None detected · = Not tested for this constituent KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 4 According to Don Keith of the Don Keith Trucking Company, vacuum bottoms are located just beneath the surface in the area underneath the firewood. The presence of the firewood obscured surficial evidence of the vacuum bottoms. On April 6, 1989, the Kern County Health Department issued a letter indicating that further sampling and analysis would be necessary before a site clearance could be given. A work plan dated May 15, 1989 was written and submitted to the client and the Kern County Environmental Health Department for approval. On June 20, 1989, the field portion of the investigation was commenced following approval by both parties. Our July 1989 report summarized the soil profile as being a fine to medium sand from grade to a depth of · approximately 19 feet. From 19 feet below grade to approximately 24 feet depth, an iron stained silt was present. From 24 feet to the bottom of our boring, a micaceous fine sand dominated the profile. During our June/July 1989 investigation., soil samples were obtained from the excavation for chemical analysis. The results of these analyses are summarized in Table II. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 5 TABLE II Concentrations of Petroleum Constituents in Soil Site Characterization Investi~;ation Proposed Office Club - Costco Expansion Arrow Street: and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample ID Location Sb As Be Cd _.Cr Cu Pb Hg N_ji S__e A__g TI Z__n 1 Excavation · · · · .'2 Excavation 3 Excavation ND 5.5 ND ND 7.5 28 17 ND 4.6 ND ND ND 36 4 Excavation 5 Excavation · · 6 Excavation · · 7 Excavation ND 10 ND ND 11 39 26 ND 6.8 ND ND ND 47 8 Excavation · ° · · 9 Excavation 10 Excavation · · · · · · · · · · · · · 11 Excavation ND 13 ND ND 5.4 24 13 ND 3.1 ND ND ND 29 12 Excavation · · 13 Excavation · 14 Excavation ND 4.8 ND 0.8 6.:3 25 16 ND 3.5 ND ND ND 33 15 Excavation · 16 Excavation ND 7.5 ND 0.6 6.9 25 15 BDL 4.0 ND ND ND 30 17 Excavation ND 13 ND ND 15 44 29 ND 8.5 ND ND ND 74 18 Excavation · Detection Limit N/A 0.5 1.0 0.5 0.5 0.5 0.5 1.0 0.2 1.0 1.0 0.5 1.0 0.5 Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver T1 = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. BDL = Concentration noted at below the detection limit noted on the attached analytical reports. · = Sample not analyzed KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 6 Also during our June/July 1989 investigation, composites were obtained of the spoils generated during the excavation which took place prior to. our field investigation. The reason for obtaining these samples was to facilitate the disposal of these soils. For the results of the analysis performed, please refer to Tables III and IV. TABLE III Concentrations of Petroleum Constituents in Soil Site Characterization Investi~.ation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfiield, California (Ail concentrations are in parts per million) Sample ID Location S._~.b A~s Be Cd Cr Cu Pb Hg N._ii S.__~e A_g TI Zn SC-1 Composite of Soils ND 5.3 ND 0.7 6.8 26 20 ND 3.9 ND ND ND 39 SC-2 Composite of Soils ND 3.8 ND 0.5 4.4 19 10 ND 2.2 ND ND ND 24 SC-3 Composite of Soils ND 3.3 ND ND 4.0 16 8.8 ND 1.9 ND ND ND 18 Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercu~ Ni = Nickel Se = Selenium .Ag = Silver T1 = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. BDL = Concentration noted at below the detection limit noted on the attached analytical reports. · = Sample not analyzed KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 7 TABLE IV Concentrations of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in part per million) Ethyl- Sample I.D. Benzene Toluene benzene Xylenes TVH Oil & Grease Excavation Sample #3 · · · · ° < 50 Excavation Sample #7 · ° · ° ° < 50 -Excavation Sample #11 · · · · · < 50 Excavation Sample #14 0.02 0.02 ND ND ND 550 Excavation Sample #16 ND ND ND ND ND < 50 Excavation Sample #17 · · · · · < 50 Spoils Composite #1 (SC-l) 0.03 0.04 ND ND ND 510 Spoils Composite #2 (SC-2) ND 0.27 ND ND ND 61 Spoils Composite #3 (SC-3) ND ND ND ND ND < 50 ND = None detected at the detection limits noted on the attached analytical reports. TVH = Total Volatile Hydrocarbons by EPA, 8015M · = Sample not analyzed As another part of our June/July 1989 investigation, a single boring was advanced to a depth of 30 feet below grade. The purpose of the boring was for use in the installation of a temporary 2-inch diameter groundwater monitoring well. While advancing the boring, soil samples were obtained for logging purposes only. Following well installation, a groundwater sample was obtained for chemical analysis. The results of that analysis are detailed in Table V as follows. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 8 TABLE V Concentrations of Petroleum Constituents in Water Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street: and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample Location Sb A_ks Be Cd C._xr _(~ I'b H__g Ni Se A_g TI ZEn MWA ND ND ND ND ND ND ND ND ND ND ND ND ND Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver TI = Thallium Zn = Zinc ND = None detected at the detection limit :noted on the attached analytical report. During our July 1989 investigation, two additional soil samples were obtained from a depth of 4-5 feet below grade in the former #1 and #2 soil sample location. This sample was obtained in order to further define the vertical extent of oil and grease concentrations in this area. The results of that analysis is detailed in Table VI as follows. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 9 :['ABLE VI Concentrations of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office: Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample I.D. Depth Total Lead Oil & Grease #9 4 feet 16 180 #10 4.5 feet 16 220 BG (background) 4 feet 6.1 · CONCLUSIONS Based upon review of the data obtained during our June/July 1989 investigation, coupled with published information regarding previous investigations, and geologic/hydrologic conditions, the following conclusions were stated in our July 1989 report. 1. Petroleum constituents related to the surface release of petroleum products were found in the subsoils beneath the site. 2. The contaminants present appear to consist of heavy, end petroleum hydrocarbons, and minor concentrations of some priority pollutants metals. 3. Petroleum constituents were shown by this investigation to exist in the subsoils at the bottom of the excavation at a depth of approximately 10 feet below grade. An area of approximately 2100 square feet appears to have contained contaminated soils. Except for near Sample Number 14, these soils appear to have been removed. 4. Petroleum constituents in the subsoils appear to increase in concentration with depth near the location of Soil Sample Numbers 9 and 10. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 10 5. Groundwater beneath the project site exists at a depth of approximately 22 feet below grade. 6. Based on the limited scope of our investigation, we possess no evidence that groundwater resources beneath the site have been impacted by petroleum constituents. In a September 1, 1989 letter from Ms. Dolores Gough of the County of Kern Department of Environmental Health Services, the following comments regarding our July 1989 report were listed. 1. On the northeast section of the site, (where vacuum bottoms and firewood previously existed), the bottom of the excavation which is about 10 feet had 550 ppm or oil and grease. California Code of Regulation Title 22 metals were detected in concentrations below the TTLC. 2. Groundwater which was encountered at 22 feet was analyzed for Title 22 metals and all had none detected levels. The oil and grease, however, was not tested. The report did not present a correlation between metals and oil and ~re~o therefore, there is no defi~tive proof that th~ 3 · tOh~ ie;e7 ~oi~ ~SntdS ~aOs~ ~n2 rheeaSsiet~, f(r oWrnel ~ j~ Based upon the conclusions of our investigation and the Department of Environmental Health Services, the following rE 1. The limits of the entire soil contamination are n Sample Numbers 9 and 10 (northwest portion of , accomplished by additional sampling during e~tl excavation. Samples would be collected from de~ ........ ~, ana ~0 feet belo~ grade for oil and grease analysis. In the event that oil and grease concentrations attenuate to a concentration of 50 ppm or less ~t ~s our recommendation that no further investigation be required ~n this are~. ~e value of ~0 ppm w~s chosen since this value ~s the de~ect~on l~m~ for th~s analys~s a~ several s~ate approved labs ~n the San ~oaqu~n Valley. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 11 2. Because the vertical extent of the soil contamination was not fully defined in the area of Sample No. 14, additional excavation and sampling may be the most cost effective method of further definition. Siince concentrations of the priority pollutant metals obtained from this area during past investigations were likely to have reflected predominantly background levels (below C.A.C. Title 22 Total Threshold Limit Concentrations), only analysis for the detection and concentration of BTXE (EPA 8020), and oil and grease should be employed. 3. In the event that detectable concentrations of BTXE and concentrations above 50 ppm oil and grease are present in the soil to the depth in which groundwater is encountered in the vicinity of former Sample Number 14, a groundwater monitoring well should be installed to verify the absence of oil and grease in groundwater. If installed the groundwater monitoring well should consist of 2-inch diameter, Schedule 40 PVC pipe with 0.020-inch slotted openings. The well should be constructed so that the piezometric surface would be located within a 20 foot screened interval. Above the screened section shou:ld exist a 2 inch diameter Schedule 40 PVC well casing. The filter medium would consist of a sand of 0.033 to 0.093 inch diameter grain size and extend to at least two feet above the slotted interval. Above the filter medium, a seal of a minimum three foot thickness should be established using bentonite pellets. The remaining annulus (from the bentonite seal to the surface vault) should consist of a six sack sand/cement slurry, with approximately 3% bentonite added to reduce shrinkage away from the well pipe. A surface vault should be placed on the monitoring well to provide a flush surface access to the locked well head. 4. Following the additional excavation (see recommendation//2) three or four composite ! samples should be obtained from the excavated spoils. In the event that the ! concentrations encountered are s~imilar to those detailed in our July 1989 report, disposal at the China Grade Landfill should be explored following obtaining a letter of , approval from the County of Kern Department of Environmental Health Services, and approval by the landfill. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 12 If you have any questions or if we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. Respectfully submitted, ~,t~ KRAZAN & ASSOCIATES, INC. ~xpir,sSep. 30,,19'lJ,,~l.J] Environmental Division Mgr. ~ Engineer RGE ~2051/RCE ~274 ~/DA/lc 2c herewith lc American Capital Management Attn: Mr. Jim Taylor (herewith for distribution) lc Coun~ of Kern Department of Environmental Health Services A~n: Ms. Dolores Gough (herewith for distribution) KRAZAN & ASSOCIATES, INC. GARY J. WICKS 2700 M Street, Suite 300 Agency Director Bakemfleld, CA 93301 (805) 861-3502 -~;>>?';,~:"-, Telephone (805) 861-3636 .;~?' "-:.:_ Telecopler (805) 861-3429 STEVE McCALLEY J.~' ' ' ±: i~'.t:' ~!'~..-~ DIr,,:tor R E S 0 U R C E M.';¢,~,fl';J%A .G.~E'~.IVIYE N t a G E N C Y i~,~ . ~-<-'? ! .... , ,. :~ '.~'~ , ..: :,~,~.,.. DEPARTME~OE:ENglRONM ENTAL September 1, 1989 Robert Martin Krazan and Associates 3860 No. Winery Fresno, CA 93?26 SUBJECT: Site Characterization Report Proposed Office Club,- Costco Expansion Arrow Street and Gilmore Avenue, Bakersfield Dear Mr. Martin: As requested, the site characterization report for the subject site has been reviewed by this Department. The following is a ,,~_summar¥ of our review: 1. On the northeast section of the site, (where vacuum bottoms ,.(~ ~ and firewood previously existed), the bottom of the excavation '.~ which is about 10' had 550 ppm of oil and grease. California ~ Code of Regulation Title 22 metals were detected in · ~ concentrations below the TTLC. 2. Groundwater which was encountered at 22' was analyzed for Title 22 metals and all had none detected levels. The oil and grease, however, was not tested. The report did not present a correlation between metals and oil and grease leaching potential, therefore, there is no definitive proof that the quality of the water was not degraded. 3. On the northwest section of the site, (where former sample #1 I /~ and 2 were retrieved) the level of oil and grease increased from 180 ppm at 4' to 220 ppm at 4.5'. A decision as to whether or not further work is necessary will be made upon your submittal of appropriate recommendations for our review. The proposed/future use of the site and the beneficial use of groundwater among other factors must be considered in your recommendations. Krazan & Associates Page Two September 1, 1989 If you have any questions regarding this matter, please call me at (805) 861-3636. Sincerely, Dolores Gough Hazardous Materials Specialist Hazardous Materials Management Program DG:jg cc: Lance Kashain, Lance-Kashian Bill Pfister, CVRWQCB GARY J. WICKS 2700 M Street, Suite 300 Agency Director Bekerefleld, CA 93301 (805) 861-3502 "'~'~:c*~ Telephone (805) 861-3636 STEVE McCALLEY >. Telecopler (805) 861-3429 Director RESOURCE NT AGENCY September Z, 1989 Robert Martin Krazan and Associates 3860 No. Winery Fresno, CA 93?26 SUBJECT: Site Characterization Report Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue, Bakersfield Dear Mr. Martin: As requested, the site cha:~acterization report for the sub3ect site has been reviewed by this Department. The following is a summary of our review: 1. On the northeast section of the site, (where vacuum '_r~?~tl~ and firewood previously existed), the bottom of the excavation which is about 10' had 550 ppm of oil and grease. California Code of Regulation Title 22 metals were detected in concentrations below the TTLC. 2. Groundwater which was encountered at 22' was anaivzed for Title 22 metals and all had none detected levels. The oil and grease, however, was not ~ested. The report did not present a correlation between metals and oil and grease leaching potential, therefore, there is no definitive proof that the quality of the water was not degraded. 3. On the northwest section of the site, (where former sample #1 and 2 were retrieved) the level of oil and grease increased from 180 ppm at 4' to 220 ppm at 4.5' A decision as to w~ether o]~ not further work is necessary will be made upon your submittal of appropriate recommendations for our review. The proposed/future use of the site and the beneficial use of groundwater among other factors must be considered in your recommendations. Krazan & Associates Page Two September 1, 1989 If you have any questions regarding this matter, please call me at (805) 861-3636. Sincerely, Dolores Gough Hazardous Materials Specialist Hazardous Materials Management Program DG:3g cc: Lance Kashain IIC© ~-t ~ ~£~0 ~ ~'11 r:~','~ c~OcS, Post-it"routing request pad 7664 ' '-"'~' ROUTING - REQUEST Please HANDLE and ~ FORWARD ~ KEEP OR DISCARD _ ¢ COUNTY HEALTH DEPAR ,IE 2700 M Street HEALTH OFFICER Bakersfield, California ENVIRONMENTAL HEALTH DIVISION Leon M Hebertson, M.D. Mailing Address: DIRECTOR OF ENVIRONMENTAL HEALTH 1415 Truxtun Avenue Vernon S. Relcherd Bakersfield, California 93301 (805) 861-3636 HAZARDOUS MATERIALS APPLICATION FOR A PERMIT TO _~C~E ) MANAGEMENT PROGRAM ~ RECONSTRUCT, DEEPEN OR DESTROY A WELL MONITORING WEL~ APPLICATION ........................... ~O_..L.). ................ AI~IOUN.I P~ll). Il ........................................................... APN: -~s.~__~._._~._~._~ '- '~[.~TC~F~) FACILI,TY NAME~.JF-'O ~l::3q~ ~/.-UI~-~::~"i'~ r~,,'c~,o~ HOME PHONE NO. ~,P ION'-' ADORESo...~.~"::L-~'L"'""~'"'-"~i!'~'-~,Z~ ........................................ WORX PHONE NO. PHONE NO. ~---- COMPLETION DATE ........................................................................................................................................... ON APPROVED-'EIST'~-7"'YES-(-TNO ............. OEP~" lO GROUNDWATER & FLOW DIRECTION DERFORMEO 8Y:....D..~ ...... :A..~~_~ REGISTRATION OIREC[IO~S TO ~ELL SITE: GENERAl. CONDITIONS OF THE PERMIT: 1. Permit applications must be submitted to the Health Oeoartment at least t0 workin9 days 8Pier to the 2. Nell site approval is required before bec~inning any work related to well constr.uction. It is lawful to continue work past the stage at which an inspection is m.~quired unless inspection is waived or completed. 3. Other required inspections include: conductor casing, all annular seals, and final construction features. 4. A phone call to the Department office is required on the. morning of the day that work is to commence and 24 hours before the placement of any seals or plugs. 5. Construction under this Permit is subject to any instructions by Department representatives. Any mis,'epPesentation or non-compliaHce with required Permit: Conditions, or Ordinance will result in issuance of a "Stop Work Order." ?. A copy of the Department of Water Resources Drille".~ Report as well as copies of logs and water quality analyses must be submitted to the Ilealth Departmenl: within I~ days after completion of the work. 8. A well destruction application must be filed with this Department if a well is being destroyed that is not in conjuction with a test t,ole permit. g. The permit is void on the ninetieth (gO) calendar day after (late of issuance if work has not been started and reasonable progress toward comp]etion made. Fe~.s are not refundable nor transferable. I O.I ha~read and agree to complywith the General :undi~~b~ //~ ~ '/ , _.~--, 1~- /...- , ~ . . - . ...... ......... .................. .......... ......... ....... OWNER'S SIGNAIURE OATE , nNlkA(:TOR'S SIGNATURE OATE APPLICATION APPROVED BY: OATE: ....................................................... DI~TmOT OFFIOES t~RN COUNTY HEALTH DEPARTMI, , 2700 M Stree~ HEALTH OFFICER 13aker~field. California ENVIRONMEHTAL 14EALTH DIVISION Leon M Hebarllon, M.D. Mailing Addrel~: /,,.~;i~,.~.~/~~ DIRECTOR OF ENVIRONMENTAL HEALTH 1415 Truxtu. Avenue ~__ Vernon $. Relcherd Bakersfield, California 93301 1805) 861-3636 HAZARDOUS MATERIALS MONITORING Hp. gr,(s) PERMIT /~r/ff/'k ,/~/'<:~/~-~' GEHERAL CONDITIOItS OF Tills PERMIT: 1. Hall site aeproval is required before beginnin~ any work related to well construction. It is unlawful to continue work past the stage at which an inspection is required unless inspection is waived or completed. 2. Other required insoections include: conductor casing, a11 annular seals, and final construction features. 3. A phone call to the Department of[ice is required on the morning of the day that work is to commence and 24 hours 4. Construction under this Permit is subject to any instructions §y 0apartment repres'en{a({V~'. 5. Any misrepresentation or non-comoliance with reeuired Permit Conditions. or Ordinance will result in issuance of a 'Stoo Hork Order.' G. A cody of the 0apartment of Hater Resources ~riller's Report as well as copies of logs and water quality analyses must be submitted to the Health Department within 14 days after completion of the work. 7. A well destruction application must be fi]ed ~ith this 0apartment if a well is being destroyed that is not in conjunction with a test hole permit. 8. The permit is void on the ninetieth (90) cal.mdar day after date of Issuance if work has no: been started and resonable progress toward completion made. F,.-: are not refundable nor transferable. 9, ] have read and agree to comply with t~e Gene~,i Conditions noted above. s,e.i.1 Conditions: ,. ,,ro ed nnu,ar S,al Oep , 7':t:l OIVHER'S SIGNATURE --~. _ ~ OATE COJ'JTRACTOI~'S SZ6~ATURE ~ATE DISTRICT OFFICES COUN [Y OF KERN Environmental ltealth Services Department 2700 "M" Street. SuRe 300 Bakersfield, CA 93301 (805) 861-3636 (805) 861-3429 Fax Number June 15, 1989 Krazan and Associates, Inc. 4815 E. Shields Avenue Fresno, CA 93703 Ama: Robert Martin Subject: Site Characterization Workplan Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, CA Dear Mr. Martin: In confirmation of our telephone conversation regarding this Departmenfs review of the site characterzafion workplan and subsequent addendum, approval is granted subject to the revision of the sampling location of the additional soil sample. 'the sample shall be retrieved on the northwestern part of the site (by BH-4) instead of by BH-1 and BH-2. Since you have concurred with this :revision, submittal of a revised workplan incorporat/ng this change is not required. Depending on the results of this investigation, additional sampling may be required to determine the extent of contamination. If you have any questions regarding this matter, please call me at (805) 861-3636. Sincerely, polo Dolores Gough Hazardous Ma£erials Specialist II [lazar,dous Materials Management Program DG:ed cc: Lance - Kashian dolores\krazan.let 6-15-16 COUNTY OF KERN Environmental Hl~lth Services Department 2700 '~f' Street, Suile 300 Bakersfield, CA 93301 (8oz) Jm~e 15, 1989 Krazan and Associates, Inc. 481 $ E. Shields Avenue Fresno, CA 93703 Atto: Robert Martin Subject: Site Characterization Workpl~ Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, CA Dear Mr. Martin: In confirmation of our telephone conversation regarding this Departmenfs review of the site characterization workplan and subsequent addendum, approval is granted subject to the revision of the sampling location of the additional soil sample. '/he sample shall be retrieved on the northwestern part of the site (by BH-4) instead of by BH-1 and BH-2. Since you have concurred with this revision, submittal of a revised workplan incorporating this change is not required. Depending on the results of this investigation, additional sampling may be required to determine the extent o£ contamination. If you have any questions regarding this matter, please call me at (805) 861-3636. Sincere. ly, Dolores Gough Hazardous Materials Specialist II Hazardous Materials Management Program DG:cd cc: Lance - Kashian dolores\krazan.let 6-15-16 COUNTY HEALTH DEPARTMEN'~ Division of Environmental Health SERVICE AND COMPLAINT FORM Date [~? Service Request [] Complaint CT No. Assigned to: Location __ City Directions '~'~''~:: '~"~ Address /'/~ -" (' '*~'*'~ Phone Reporting Person Property Owner Address Phone Reason for Request " ' , ~ I'-~. 'T'~-,~-',, Information Taken Dy RESULTS OF INVESTIGATION Complainant notified of results .................... Investigated by .... Date KCHD 580 2760 372-EH (R.11-80) O ERN COUNTY HEALTH DEPAP~TMEN Division of Environmental Healtl~' · // //',?.i SERVICE AND COMPLAINT FORM * Date ('~ ~ ~-~ Time: ~ Service Request [] Complaint CT No. Assigned to: Location City Directions Reporting Person : .',: '~ ; '*' Address Phone ...................... Property Owner Address Phone Reason for Request ~ ~"; / '... ~: ~..,..-/ "¢ ,i ' . ~ ;' Information Taken by RESULTS OF .~ INVESTIGATION -~!' "-"~ ':"; : Complainant notified of results Investigated by.._ Date __ P 0~ K"RAZAN & ASSOCIATES , IN C. Construction Testin. .nd In~4ctlon ............ Environmental Engineering , " L~bOrerory ~olM Testing ~une 9, 1989 Project No. E89-039 Lance-Kashian 1100 West Shaw Avenue Fresno, California 93711 RE: Addendum Work Plan Dated May ]5, 1989 Preliminary Site Characterization Proposed Office Club/Costco Expansion Arrow Street and Gilmore Avenue BakersfieM, California Gentlemen, lAZe would like to take this opportunity to amend the above-referenced work plan in accordance with the requests of Ms. Delores GauBh of the Kern County I-IeMth Department Environmental Health Services Division. Ms. Gau§h pointed out that it may be appropriate to analyze one oT mo~e o~ our soil and/or water samples for BTXE-TVH by EPA Methods 8020/B015M. Additionally, she will be requirin§ that s~mpIe be obtained from a depth of approximately 2.5-3 feet below grade in the former BH-I and BH-2 · locations for an oil and §tease analysis by EPA Method 9071. ]Vis. Cau§h also s~ted that there was a ~pol%n'apl'dcal error in +,.he Kern County Envirorunental Health telephone numbers in our health and safety plan. The correct number should be (805) 861-3~36. We will incorporate these modifications into our investi§ation at an additional cost to you for the analysis at the previous]y discussed unit cost rates. ]ir there are any questions or if we can be of further assistance, please do not hesitate to contact our office. Respect~]ly submi fred,  I<RAZAN &: ASSOCIATES, INC. Project Geologist/ l[~.~(_ No. 002051 '~ I~/I Er~onmental,Divi$ionMgr. Ex pi re $ Sep. 30,1991 %~'~. C, ~,x~/// Oeotech.ical En§ineer ~ ROE ¢002051/RCE ¢34274 RAM/DA/lC lc Kern County Health Department Attn: Ms. Delores Gau~h P 01 Fax Transmittal Attention: Krazan & Associates, Inc. Sender: '"~"~v%~.~ ~ ~ ~81(,, E'. $1~;¢Ict$ ,kv,.nu.~. ~ Fresno, CA ?:370.A No. of Pages Following: ")"' Voice: (209)q5~-c~,57 FAX No: (209) Pease call if you did not recei~'e all pages KRAZAN & ASSOCIATES, INC. Construction Testing, and InAuection Ge°technical lnve~tlgatl°ns Environmental Engineering · Laboratory Soils Testing ~ ~ ~ ~ ! ~ r~ / June 9, 1989 Project No. E89-039 Lance-Kashian 1100 West Shaw Avenue Fresno, California 93711 RE: Addendum Work Plan Da~ed May 15, 1989 ' Preliminary Site Characterization Proposed Office Club/Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California Gentlemen, We would like to take this opportunity to amend the above-referenced work plan in accordance with the requests of Ms. Delores Caugh of the Kern County Health Department Environmental Health Services Division. Ms. Gaugh pointed out that it may be appropriate to analyze one or more of our soil and/or water samples for BTXE-TVH by EPA Methods 8020/8015M. Additionally, she will be requiting that a sample be obtained from a depth of approximately 2.5-3 feet below grade in the former BH-1 and BH-2 locations for an oil and grease analysis by EPA Method 9071. Ms. Caugh also stated that there was a typographical error in the Kern County Environmental Health telephone numbers in our health and safet~ plan. The correct number should be (805) 861-3636. We will incorporate these modifications into our investigation at an additional cost to you for the analysis at the previously discussed unit cost rates. If there are any questions or if we can be of further assistance, please do not hesitate to contact our office. Respectfully submitted, ~~0~~ KRAZAN & ASSOCIATES, INC. ~~?~..~ RGE #002051/RC£ #34274 RAM/DA/lc cc: lc herewith rem County Health Department i~ '~ ~ [~ ~] ~ ~ Attn: Ms. Delores Gaugh =.~,dA~A~nt~ HeaJth D~v. Main Office: £resno/Clogis · 35~0 IV. Winery · Fresno, California 9572~ · (209) 291-7337 Bekersfielc/ (~05) 393.£$43 [] Visel/,e (209) ~25.$£~1 ~ Merced (209) $83-3993 i ,'~ E I/~_ OF NE I/'4. ._.. = = NE I/4 OF.,. SE I/4 ~ ~. ' ~.,'~ ~/~ ~/i ~ ~ , , .~ ~' :'/~ ~'~ //E ~ Project No, E89-039 Page. No. 12 If you have any questions or if we can be of further assistance, please do not he,sitate to contact -s at t209) 453-9637. Respectfully submitted, RGE g~2OS1/RCE ~274 RAM/DA/lc 2c herewith lc American Capitol Management Attn: Mr. Jim T~ylor (herewith for distribution) lc CotmtyvfKem Department of Environmental Health Services Attn: M~. Dolores Gough {herewith for distribution) ^"~'°"'~ ~"~h KRAZAN & ASSOCIATES o~,,~,, ~y: ,.j .~. --~-:-. 1 --~. - m '' ' '; '~ · ' --"~' ' 4~' ~,..'~-, _ .. , .. ~.~. , . ~' / ,-'~, .~. '' .~ m .. '"--.: ....... , - ', 'x .... ' '~ ~'-'~ , c,,,?m,- ,. "'" ~ '".. ~. ~. ~ ~ . ~, ~'~ ~ ..~'~. .~~",',. '~i[-~:.~. , :] ' : ..... ~ i~ Pr[mary '' '" "' ~ ~v~ .....~ t · ~'~. '. aO5~a '~~ -...._..=.. ._-._~.... ----:., ::~: _~.E~; , : .... ~ .... ~.~ ', , :. ~ ~ '.e I . .,, .~t , TI .... "" :~[~ "' ~tF ~,"-'~" ....,."." ....... ~:-. . .,, ...-,~ ' ..... ~,.. ,~ ' --IL t~* .~' , .-. ' :'L ~aeea ;'~1[~...-~"' · .... ' o ~e~2 .... , , ~ 1~ . ~e~-'~'%':,.,,g.~:~ ~_ ..' ~, / // . : ., ~/ /~. : o ~:'. .:". ' , .... · q . ~,;~ o. , ~ ~,;~, ~ .... ,,.D~' ~ "Y.'):' '" ~ ' / "~., ' '? ~2.' .. . · ........ /. .~.~/~,~ ..... l ..-..,., / ~ /..,' ,;:' ' /;'" "f' ' .r, · ~ . .,, , . ,,: /,,~,::' .,, ,.,:,.~ / ~~ ':~ ' !~ ~ .'L ,"~ . ' ' ' , ~ '~11~ ~ ~ ~ ~ ~ ~ .~'~"" ~ '" ' '~ ........ ~ , " ." ' %' Z ~z~ ~_~ *.I~L ~~~~t' ,r'~-'~t~'~l ii'~'li'n,..~il~,~.~ -~., ,' ~,. ~' .' ".,>':' '". · Project No. E~9-039 Page No. 1 l 2. Because thc vertical extent of the soil contamination was not fully defined in Se area of Sample No. 14, additional excavation and sampling may be the most cost effective method of further definition. Since concentratio~s of the priority pollutant metals obtained from this area during past investigations were likely to have reflected predominantly background levels (below C.A.C. Title 22 Total Threshold Limit Concentrations), only analysis for the detection and concentration of BTXE (EPA 8020), and oil and grea~e should be employed. 3. In the event that detectable concentratiot~s of BTXE and concentrations above 50 ppm oil and grease arc present in the soft to the depth in which groundwater is encountered in thc vicinity of former Sample Number 14~ a groundwater monitoring we]} should be installed to verify the absence of oil and grease in groundwater. If installed the groundwater monitoring well should consist of 2-inch diameter, Schedule 40 PVC pipe with 0.020-inch slotted openings. The well should be constructed so that the piezometric surface would be located within a 20 foot screened interval. Above tl~e screened section should exist a 2 inch diameter Schedule 40 PVC well casing. The filter medium would consist of a sand of 0.033 to 0.093 inch diameter grain size and extend to at least two feet above the slotted interval. Above the filter medium, a seal of a minimum three foot thickness should be established using bentonite pellets. The remaining annulus (from the bentonite seal to the surface vault) should consist of a six sack sand/cement slurry-, with approximately 3% bentonite added to reduce shrinkage away from the well pipe. A surface vault should be placed on the monitoring well to provide a flush surface access to thc locked well head. 4. Following the additional excavation (see recommendation #2) three or four composite samples should be obtained from the excavated spoils, in the event that the concentratmns encountered are similar ~o those detailed in our July 1989 report, disposaI at the China Grade Landfill should be explored following obtaining a letter of approval/rom the County of Kern Department of Environmental Health Services, and approval by th~:, landfill. ~ . AZAN & ASSOCIATES, INC. ~~"~,~4'~~/f~x pire~ Sep, 30,1~)9t~~..~ Environmental~~~.Division Mgr. RGE ~2051/RCE ~274 RAM/DA/lc 2C herewith lc American Capital Management Attn: Mr. Jim Taylor (herewith for Departmem of Environmental Health ~ervices Attn: Ms. Oolore~ Cough (herewith for distribution) KRATAN & ASSOCIATES, INC. KRAZAN & ASSOCIATES, INC. Schedule 40 PVC pipe with 0.020-inch slotted openings. The well should be constructed so thai the piezometric surface would be located within a 20 foot screened interval. Above the screened section should exist a 2 inch diameter Schedule 40 PVC well casing. The filter medium would consist of a sand of 0.033 to 0.093 inch diameter grain size and extend to at least two feet above the slotted interval. Above the filter medium, a seal of a minimum three foot thickness Should be established using bentonite pellets. The remaining annulus (fron't the bentonite seal to the surface vault) should consist of a six sack sand/cement slurry, with approximately 3% bentonite added to reduce shrinkage away from the well pipe. A SUrface vault should be placed on the monitoring well to provide a flush surface access to the locked well head. 4. Following the additional excavation (see recommendation #2) three or four composite samples should be obtained from the excavated spoils. In the event that the conce,~trations encountered are similar to those detailed in our July 1989 report, disposal at the China Grade Landfill should be explored following obtaining a letter of approval from the County of Kern Department of Environmental Health Services, alad approval by the landfill.  RAZAN & ASSC)CIATES, INC. If you have any questions or if we can be of further assistance, please do not hesitate tv cot~tact u.,~ at (209) 453-9637, Respectfully submitted,  .~ KRAZAN & ASSOCIATES, INC, ,,o. oo,o ,. · Environmental Division Mgr,' Geotechnical Engineer RGE a~2051/RCE a~274 ~M/DA/Ic 2c herewith lc American C~pital Management Attn: Mr. Jim Taylor (herewith for distributiot0 lc Coun~ of Kern Department of Environmental Health Services A.n: Ms. Dolorcs Gough (herewith for distribution) KRAZAN & ASSOCIATES, INrC, It installed the groundwater mOnitorm$ Schedule 40 PVC pipe with 0.020-inch slotted openings. The well should be constructed so that the piezometri¢ surface would be located within a 20 foot screened interval. Above tl~e screened section should exist a 2 inch diameter Schcdulc 40 PVC well casing, The filter medium would consist of a sand of 0.033 to 0.093 inch diameter grain size and extend to ~t least two feet above the slotted interval. Above the filter medium, a seal of a minimum three foot thickness should be established using bentonite pellets. The remaining annulus (from the bentonite seal to the surface vault) should comist of a six sack sand/cement Slurry, with approximately 3% bentonite added to reduce shrinkage away trom the well pipe, A surface vault should be placed on the monitoring well to provide a flush surface access to the locked well head. 4. Following the additional excavation (see recommendation #2) three or four composite ~ samples should be obtained from the excavated spoils, in the event that the , concentrations encountered are similar to those detailed in our July 1989 report, disposal at the China Grade Landfill should be explored following obtaining a letter of approval fro,n the County Of Kern Department of Environmental Health Services, and approval by the landfill. KRAZAN & AS$0CIA'I'I/S, INC. grade. 6. Based on the limited scope of our investigation, we possess no evidence that ~r~undwater resources beneath the site have been impacted by petroleum constituents. In a ~ptember I, 1989 letter from Ms. Dolores Gough of the County of Kern Department Of Environmental Health gervice~, the following contrnents regarding our July 1989 report were listed. '1. On thc northeast section of the site, (where vacuum bottoms and firewood previously existed), the bottom of the excava~fion which is about 10 feet had 550 ppm or oil and grease. California Code of Regulation Title 22 metals were detected in concentrations below the TX'LC. 2. Groundwater which was encountered at 22 feet was analyzed for Title 22 metals and all had none detected levels. The oil and grease, however, was not tested. The report did not present a correlation between metals and oil and grease leaching potential, therefore, there is no definitive proof that the quali~, of the water was not degraded. 3. On the northwest section of the site, (where former sample #1 and 2 were retrieved), the level of oli and grease increased from 180 ppm at 4 ~eet to 220 ppm at 4.5 feet. Based upon the conclusions of our investigation and the comments of the County of Kern Departmem of Environmental Health Services, the following recommendations are given. l. The lin'dts of the entire soil contamination are not fully defined in the area of 5oil Sample Numbers 9 and 10 (northwest portion of the site), Further definition may be accom?lished by additional sampling during either an additional soil boring or excavation. Samples would be collected from depths of 5, 6, 7, 8, 9, and 10 feet below gracle t'or oil ~nd grease analysis. In the event that ell and grease concentrations attenuate to a concentration of 50 ppm or less it i$ our recommendation that no further investigation be required in this are~. The value of 50 ppm was chosen since this value is the detection l~rl~it for this analysi~ at several state approved labs in the San Joaquin Vallvy. ..... KRAZAN & ASSOCIATES, INC. Project No. E89-039 .. Page No. 9 TABLE VI Concentrations of Pe{rolcum Constituents In Soil ~r~acterization Invest' rro~sed Office C~ : . '-'"~' - ~.ostco t:xDansion ~rrow ~;treet and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) #9 4 feet ~10 /6 43 feet 180 (background) 4 feet 16 220 6.1 · Bssed upon review of the data obtained during our ~une/]uly 1989 investigation, coupled w/th published information regarding previous Investigations, and geologic/hydrologic conditions, the f°ll°win/3 conclusions were stated in our .}'uly 1989 report. 1. Petroleum c'onstituents related to the surface release of petroleum products were found in the sub~oils beneath the $ile. . 2. The contarrt/nanls present appear to consist of heavy end petroleum hydrocarbons, and mIno~, coc~centrations of some prior/fy pollutants metals. 3. Petroleum constituents were shown by this investigation to exist in the subsoils at the bottom of the excavation at a depth of approximately 10 feet below grade. An area of approximately 2100 square feet appears to have contained contaminated soils. Except for near Sample Number 14, these soils appear to have been removed. 4. l'etroleum con.stituents in the subsoils appear to increase in concentration with depth near fl~e location ~oll Sample N'ambers 9 and 10. KRAZAN & ASSOCIATES, INC. Jt ~Ll~ V Concentrations of Petroleum Constituents in Water $i__te Characterization Inve.stigation PropoSed Office ClUb- Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentration; are in parts per million) $~rnple _Location Sb _As ~ Cd Cr .Q~. Pb .~ N__ii ~ A_$ TI Z~n MWA ND ND ND ND ND ND ND ND ND ND ND ND ND SD -- Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr .- Ct~-omium Cu = Copper P.b = Lead Hg --- Mercury Ni = Nickel Se = Selenium Ag = Silver TI = Thallium Zn ,, Zinc ND r. None detected at the detection limit noted on the attached analytical report. During our July 1989 investigation, two additional soil samples were obtained from a depth of 4-I~ feet below grade in the former #1 and #2 soil sample location. This sample was obtained in order to further define the vertical extent of oil and grease concentrations in this area. The results of that analysis is detailed in Table VI as follows. . KRAZAN & AS~;0CIATESt INC. Project No, E$9-O39 Page No. 7 TABLE IV C. oncentration~ of Petroleum Constituents in 5oil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in part per million) Ethyl- Samt~le I,_D. Benzene T_OJ.I.I.I.I.I.I.19.~_~ ~ Xyl~n~$ _T_.VH Oil & Grease Excavation Sample $$3 · · · · · < $0 Excavation Sample #7 · · · · · < 50 Excav~tion Sample/411 * · · , * < 50 Excavation Sample $$14 0,02 0.02 ND ND ND 550 Excavation Sample $$16 ND ND ND ND ND < 50 Excavation Sample $$17 · , · · · < 50 Spoils Composite #1 (SC-l) 0.03 0.04 ND ND ND 510 Spoils Composite #2 ($C-2) ND 0.27 ND N D ND 61 Spoils Composite #3 (SC-3) N D N O N D ND ND < 50 ND ~ None detected at the detection limit,5 noted on the attached analytical reports. TVI,-I ~ Total Volatile Hydrocarbons by EPA 8015M · = Sample not analyzed As another part of Our June/July 1989 inwestigation, a single boring was advanced to a depth of 30 feet below grade. The purpose of the boring was for use in the installation of a temporary 2-inch diameter groundwater monitoring well, While advancing the boring, soil samples were obtained for logging purposes only. Following well installation, a groundwater sample was obtained for c~emical ~nalysi~. The r~sults of that analysis are detailed in Table V as ~ollows. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 6 Also during our June/July 1989 investigation, composites were obtained of the spoils generated during the excavation which took place prior to our field investigation, The reason for obtaining these samples was to facilitate the disposal of these ,.~oils. For the results of the analysis performed, please refer {o Tables III and IV. ~'ABLE III Concentrations of Petroleum Constituents in Soil Site Characterization Investl[ation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue B~kersfield, California (All concentrations are in parts per million) ID Locatior~ S..~bb A_.~s B,~.e Cd Cr C~...,~ 1'2'o H_~ N,..~i Se ~i~ T,,! Za._! $C-'l Composite oF Soils ND 5.3 ND 0,7 6.8 26 20 ND 3.9 ND ND ND 39 $C-2 Composite of Soils ND 3.8 ND 0.5 4.4 19 10 ND 2.2 ND ND ND 24 SC-3 Composite of Soils ND 3.3 ND ND 4.0 16 8.8 ND 1.9 ND ND ND 18 Sb = Antimony AS = Arsenic Be = Beryllium Cd -- Cadmium Cr -- Chromium Ch -- Copper Pb -- Lead Hg --- Mercury Nt = Nickel Se = Selenium Ag : Silver TI = Thallium Z. -- Zinc ND" None detected at the detection limit noted on the attached analytical reports. BDL ~ Concentration noted at below the detection limit noted on the attached analytical reports. · = Sample not analyzed KRAZAN & ASSOCIATES, INC. Project No, E$9-039 Page No, 3 'TABLI/I .C_'oncenh'ations of Petroleum Constituents in Soils Level '.I HSSA Report -- Match 22, 198c) Proposed Office CLub/Costco Expansion Bakersfield, California (Concentrations in parts per million) Test Method and ~ Sample #1 ~;0mple #2 5ample #.4_ Sample ,.~,6 Samp!e//7 ISample #8 @ 1,5' @ 2.5' @ 2,5' @1.0' @1.5' ~ 3.5' EPA 9071: Oil & Grease 65 · 40 1,01'5 , . H~A 7420: Total Lead 2.1 2.0 2.0 . · DOH~ I,UFT: Total Petroleum Hyd roca rbons · · N D N D N D N D (Diesel) EPA 8020: B~nzene * · . ' N D N D Toluene · . . · N D N D Eth ylbenzene · · . ' N D N D Total Xylencs . · . · ND ND Isopropylbcnzene · · . · N D ND EPA 8015M: Total Petroleum · · , . N D N D Hydrocarbons · ' ' ' · N D ND (Gas) Note: Sample Nos. 3 and 5 were not analyzed. ND = None detucted · = Not tested for tills constituent KRAZAN & A~.qOCIATES, INC. Project No. E89-039 Page No. 5 TABLE II Concentra tions of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfio. ld, California (All Co~\centratiol'[S are in parts per million) 9ampl~. l Excavation · · , · · * · , · · · ' * 3 Excavation ND ~.5 -N~ ND 7.) 28 12 ND 4.6 ND ND ND 4 fxcavation · · · · " · · e , 6 EXCaVatiOn ~ · · · *, · e · e · · · e 7 Excavation ND 10 ND ND ll 39 26 ND 6.8 ND ND ND 47 g Excavation · · - · · e · · · 9 Excavation * * · * '. · · · e e 11 Excavation ND 13 ND ND 5,4 24 13 ND 3.I ND ND ND 12 Excavation · ~ · · · · , · · lg Excavation * * * * * * * * * 14 Excavation ND 4.8 ND 0.8 6.3 25 16 ND ~.5 ND ND ND 33 15 Excavation · · · · · e e * e e e · 16 Excavation ND 7.5 ND 0.6 6.~ ~ 15 BDL 4,0 ND ND ND 30 17 Excavation ND t3 ND ND 15 ~ 29 ND 8.5 ND ND ND 74 18 Excavation * · . , · · · · · * Deter'rich Limit N/A 0.5 1.0 0.5 0.5 0.5 0.5 1.0 0.2 1.0 1.0 0.5 1.0 0.5 Sb -- Antimony As = Arsenic Be --- Beryllium Cd - Cadmium Cr = C}u'omium Gu --- Copper Fo -- Lead Hg -- MercuD' NI = Nickel Se = Selenium Ag -- Silver Ti -- Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. BDL ~- Concer~tra~ion noted at below thc detection limit noted on the had analytical rcports. · ~ Sample not anal KRAZAN & ASSOCIATESt INC. app,'oxh~atcly 19 feet. From 19 feet below grade to approximately 24 feet depth, an iron stained silt was present. From 24 feet to the bottom of our boring, a micaceous fine sand dominated the profile. During our June/J'uly 1989 investigation., soil samples were obtained from the excavation for chemic~I ~naly~is. The results or these analyses are summarized in Table 1I. KRAZAN & ASSOCIATES, INC. Project No. E89439 Page No..3 TABLE i Concentrations of Petroleum Constituents in Soils I.evel I I ISSA Report March 22, 1989 l"roposcx;I Office Club/Costco Expansion Bakersfield. California (Concentratiorts in parts per million) Test Method and Constit~ S~,mple #1 Sample~.2 Sample #4 S. amole #6 Sample.#7 Sample #8 @ 1.5' @ 2.5' @ 2.5' @1,0' @l,$' @ 3.5' EPA 9071: O{1 & Grea'~e 65 * 40 1,01'5 · · EPA 7420: Total Lead 2.1 2.0 2.0 DOH$ LUFf: 'rot,~l Pc, troluunt Hydrocarbon,~ · ' ND ND ND ND (Diesel) liPA 8020: ~e,,~cuc , · · · ND N D Tolueno. ~, , , · N D N D Ethylbenzene · ° ' " N D N D Total Xylert~ · ' ' · ND ND Isopropylbenzenc · . . * ND ND EPA 8015M: Total Petroleum · · , , ND ND Hydroearbons · o · · N D N D (Gas) Note: Sample Nos. 3 and 5 were not analyzed. ND = Nono detected ' - Not tested for thi~ consOtuent Project No. E$9-039 Page During this investigation, soil samples 'were obtained from beneath areas that exhibited signs of minor surface contamit'~ation. An additional sample was obtained in an area that had been covered by firewood and where a substance kno~rn as "wtcuum bottoms" was reported to exist. The results of the~e samplin~ are presented in the following table. Based on these results it was determined that the surface contamination noted in a few area~ on site had not migrated very far vertically into the soil (one-half to two feet), It was also concluded that .there had been some leaching of hydrocarbons into the sOil beneath the vacuum bottoms and that further testing would be necessary to determine the extelxt of the vacuum bottoms and any materials that may have leached from it. At the time of the Level I HSSA, piles of firewood belonging to Swen's Firewood occupied the northeast portion of the subject site. The site surface was covered by a layer of cracked asphalt and a moderate weed growth was growing up from the cracks through the asphalt. Out-of-service tanks trailers owned by Don I<eith 'l"ruckin~ occupied the southwest portion of the subject site, Several areas of surface discoloration were noted including a ten square foot area located in the southeast portion of the subject property. The discoloration appeared to be motor oil or waste oil and was confined to the asphalt and upper fewer inches of soil. During the Level I HSSA, soil samples were obtained for chemical analysis. The results of those analyses are detailed in Table I. For the locations of the samples obtained, please refer to leigure 2. / ~n~l In~t~atJon~ Envi~n~a~ E~lng ~ptem~r ~, 19~9 Project No. E89~39 Lance-Kashian & Company Attn: Mr. Ed Kashia~ 11~ We~t ~haw Avenue ~reano, California 9371 t RE: Recommeada6oas July 1989 Report Pro~sed Office Club-Costco Expansion Arrow 5treat and Gilmor~ Awnue Bakersfield, California in accordance with your authorization and the requests of thc County of Kern D~partment of Environmental I iealth Services, we are submitting our recommendations following; the above referenced investigation. It is our hope that Kern County will quickly respond to our recommendations so that this ;ituatlon may be resolved, and the pending development may begin as goon as possible. SITE DESCRIlrrlON ~ LOC&TION The subject site is a rectangular shape property encompassing approximately 5 acres south of the existing Costco Home Club development. It is currently a portion of the Don Keith Trucking Compa,y yard. Thc property is located on the southwest corner of Arrow Street and Gilmore Avenue in a commercial and light industrial area adjacent to Highway 99 in Bakersfield, California (See Vicinity Map). According to the U.5 Geological Survey 7.5 minute Oildale, California topographic quadrangle map, the property occupies a portion of the northeast 1/4 of the ,~utheast 1/4 of Section 23, T295, 1427E, Mount Diablo 13aseline and Meridian. $1T.~ .HISTORY A March 22, 1989 Level [ Hazardous Substance Site Assessment (HSSA) Report was completed for the proposed Offic~ Club - Costco Expansion. '['he site is located at the southwest corner of Arrow Street and Gilmore Avenue in Bakersfield, California. The Level 1 HSSA was requested to identify any obvious toxic or hazardous ms,crisis at or near the site. Main Off/ce: Frest~c~/Clovt$ · 3860 N, Winery · Fresno, California 9372~ · (209) 291-7337 Bakersfield (805) 393.2343 ? California (800) 233-5050 ~_ FAX (20~) 291-5010 ~'85'RAZAN & ASSOCIATES, INC. Construction ~esting and Int~pec~ion ~oretury Soils T.t(n~_ ....... ' ' " ] Mon~orin9 ~tls FAXTRANSMITTAL [ Krazan & Associates, irnc, Sender:"'~~ 4816 Ea.~t Shields Fresno, CA 93726 No. of pages following: ice:. (209) 453-9072 .~ Fax No, (209) 453-9637 PLEASE CALL IF YOU DID NOT RECEIVE ALL PAGES Main offi?:',~re?~(~(s.. ~ 38,0 M w/~o, ~~~ ~ o ;~o9) 20~.ZI~F KRAZAN% ASSOCIA ITES, INC. Construction Testin§ ........ pection ~boratow Soils Testing k~ ~ ~ ~ I t 'J~ / .Monitoring Welg ~ ~ ~/ /~ March 3, 1989 Proj. No. B89-039 Ed IKashian 1100 West Shaw Avenue, Suite 124 Fresno, CA 93711 RE: Proposed Commercial Complex Arrow Street Bakersfield, California Gentlemen: In accordance with your :'equest, we have completed a Preliminary Geoteehnical Engineering Investigation for the above-referenced site. The results of our investigation are presented in the attached report. If you have any ques[ions or if we can be of further assistance, please do n~t hesitate to contact our office. Respectfully Submitted, KRAZAN & ASSOCIATES, INC. Dean Alexander Geotechnical Engineer ROE t/O02051/RCE #34274 DA/Ir Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 ~ Visalia (209) 625-8251 ~ Merced (209) 383-3993 PRELIMINARY GEOTECHNICAL ENGINEERING INVESTIGATION PROPOSED COMMERCIAL COMPLEX ARROW STREET BAKERSFIELD, CALIFORNIA Project No. B89--039 March 3, 1989 prepared for Ed Kashian 1100 Wes[ Shaw Avenue, SuJ[e 124 Fresno, CA 93711 Project No. B89-039 ]FABLE OF CONTENTS INTRODUCTION 1 SITE DESCRIPTION 2 GEOLOGIC SETTING 2 FAULT MAP 2a SOILS PROFILE AND SUBSURFACE CONDITIONS 3 CONCLUSIONS AND RECO~VIMENDATIONS L~ Administrative Summary 4 Site Preparation 4 Engineered Fill 5 Utility Trench Backfill 6 Foundations 6 Slab-On-Grade 7 Lateral Loading Criteria~ 7 R-Value Test Results and Pavement Design 8 Soil-Cement Reactivity 9 COMPACTED MATERIAL ACCEPTANCE 9 TESTING AND INSPECTION 10 LIMITATIONS i0 SITE PLAN 12 LOGS OF BORINGS (1 thru 6) Appendix A SUGGESTED EARTHWORK SPECIFICATIONS Appendix B GENERAL PAVING SPECIFICATIONS Appendix C KRAZAN ASSOCIaTEs, INC. Geotechnical Investigations ' ~ ~ Environmental En~in~rin~ Laborato~ Soils Testing , ~ ~ ~ ~ i ~~ ~ / MOnitOring Wells ~~ ~ {&~/ March 3, 1989- ; Prbj. No. B89-0~9 PRELIMINAR-Y GEOTECHNICAL'ENGINEERING INVESTIGATION PROPOSED COMMERCIAU COMPUEX ARROW STREET : BAKERSFIELD, CALI'FORNIA INTRODUCTION This report presents the results of our Preliminary Geotechnical Engineering Investigation for the proposed commercial compley located on Arrow Street in Bakersfield, California. Development wil~ consist of construction of two buildings, and expansion of Costco Warehouse, with a total surface area of 51,i00 square feet. The buildings will be single story and will have concrete block and wood frame construction. Footing loads are anticipated to be light to moderate. On-site parking is also planned. The purpose of this investigat:ion was to evaluate the foundation materials and subsurface conditions of the site. Methods of analysis included site reconnaissance, examination of adjacent property, exploratory' soil borings and sampling, laboratory testing of selected soil samples, a literature search, review of historical aerial phoi:ographs, and engineerinq evaluation o; the resultant data. Conclusions and recommendations concerning the soil and foundation engineering aspects of the project aite with suggested methods of testing and inspection are provided in the report. Discussions of the field investigation and recommended earthwork and pavement specifications for ,~he projec~ are preser~ted in the appendices. When conflicts in the text of the repcrt, occur with the general specificatiops in the appendices, the recommendations in the text of the :'eport have precedence. A site plan which outlines the property and shows the locations of the tests is provided at the end of the text. Main Office: Fresno/Clovis · 3860 N, Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 .~ Visalia (209) 625-8251 ~ Merced (209) 383-3993 Page No, 2 Proj. No. B89-039 SITE DESCRIPTION The site addition consists of approximately 5 acres and is located on the west. side of Arrow Street, approximately 450 feel south of Gilmore Avenue, in Bakersfield, California. The Home C!ub/Costco Shopping Center is located immediately north of the proposed development. The proposed Costco expansion area is located south of the ex'isling development. In addition,, commercial developments surround the remainder of the project site. Site history was researched by '.eviewing an historical aerial photograph taken in 1969. The aerial photograph indicates that the .site was vacant. No structures occupied the site. Presently, the site addition is being used as a storage yard for a trucking company. Several trailers are located in the southwest portion of the site. A wood pile and wood chips are I. ocated in the northeast and north central portions of the site. A one-quarter-inch oil road base covers the majority of the site. Also, 55-gallon drums containing hazardous materials are located in the southeast portion of the site. The site is relatively level with no major changes in grade. GEOLOGIC SETTING Geologically, the property is situated on the eastern flank, near the south end of the Great Valley Geomorphic Province. This province is a large nortt~westerly trending geosyncline or structural trough between the Coast Range Mountains and the Sierra Nevada. Erosion from both of these mountain sTstems has resulted in the deposition of immense thicknesses of sediments in the Valley floor. Heavily-laden streams from the Sierra Nevada have built very prominent alluvial fans along the margins of the San 3oaquin Valley. This has result:ed in a rather flat topography in the vicinity of the project site. The site is composed of alluvial deposits which are mostly cohesionless sands and silts. The south end of the San .]oaquin Valley is surrounded on all sides, excluding the north, by active fault systems (San Andreas, White Wolf-Breckenridge-Kern Canyon, and Garlock Faults). Numerous smaller faults exist within the Valley floor. KRAZAN & ASSOCIATES, INC. ., CALIFORNIA DIVISION OF MINES AND GEOLOGY SYMBOL PRINCIPAL FAULT i A B~owley j' CH Cie ~elond H;II - ~ - · ~ 7 ~ ~ · S 5 t ~ C~ Cucumono~ o ~ ..... s MA Moocamo NI Newpo~t~nglew~ R ~aymond S~ o o ~ ~ RH R~e~s Oeek-Healds~rg RM Red Mtn. ~ SA San Andteos , ~ SF Son Femondo ~ <~o ~ S ~ SJ Son Joclnlo ' ,~ ~ a~/~'X ~ V Ventu~a _- +, - , u J / ~ - ~ W Whhe Wolf ~G ..... warranl~ by new faull d311. I:ouJls ~n Colilom~o zoned lot spec~ol studies unde~ lhe AIqu;s~l-P~iolo Speciol Studies Z¢,nes Act ol 1977. Page No. 3 Proj. No. B89-039 There is on going seismic activity in the Kern County area, with the most noticeable earthquake being the 3uly 21, 1952 Kern County Earthquake. The initial shock was 7.7 magnitude shake with the epicenter near Wheeler Ridge, about 22 miles from Bakersfield. Vertical displacements of as much as 3 feet occurred at the fault line. Estimated average value of the maximum bedrock accelerations from the 1952 even~ are about 0.25 gravity at the project site. The closest known faults Lo the property are subsurface faults located at the Fruitvale Oil Field. These faults cut the older sediments and, although numerous, are not thought to be active in the last 2 million years. No evidence was observed that indicates surface tau!ting has occurred across the property during the Holocene time. Faults not yet identified, however, may exist. The site is not within an Alquist~Priolo Special Studies area. SOILS PROFILE AND SUBSURFACE CONDITIONS The subsurface soil conditions were explored by drilling six borings to a maximum depth of 15 feet. Surface soils consisted of 6 inches of very loose silty sand. These soils are disturhed~ have low strength characteristics, and are highly compressible when saturated. Below the surface soils, 4 to 5 feet of very loose to loose silty sand was encountered. Field and laboratory tests suggest that these soi!s have low to moderate strength characteristics and are slightly compressible. Penetration resistance ranged from 4 to ~9 blows per foot. Dry densities ranged from 79 to 92 pct. Representative soil samples consolidated between 2 and 4% under a 2 ksf load when saturated. Representative soil samples had angles of internal friction ranging from 28 to 32 de~rees. Below 4 to 5 feet, silty sand or well graded sand was encountered. These soils had moderate strength characteristics and were slightly compressible. These soils extended to the termination depth of the borings. No expansive soil or shallow groundwater was encountered in any of the borings. For additional information about the soils encountered, please refer to the logs of borings in Appendix A. KRAZAN & ASSOCIATES, INC. Page No. 4 Proj. No. B89-039 CONCLUSIONS AND RECOMMENDATIONs ADMINISTRATIVE SUMMARY ]n brief~ the subject site and soil conditions, with the exception of the loose upper soils~ appear to be conducive to the development of the project. The upper soils have low to moderate strength characteristics. It is recommended that the strength characteristics of these upper soils be increased to provide adequate support for the project development. It. is recommended that the proposed structure footings be supported by 2 feet of Engineered Fill. Wood and wood chips are located in the northeast and. north central portions of the site. These wood materials should be removed from the site and will not be suitable for reuse as Engineered Fill. The 55-gallon drums containing hazardous substances should be removed from the site and properly disposed of. The oil cake layer should be stripped from the building and paved areas and removed from the site. This material will not be suitable for reuse as Engineered Fill. After completion of the recommended site preparal:ion, the site should be suitable for shallow footing support. The proposed structure footings may be designed utilizing an allowable bearing capacity of 250D pst for dead-plus-live loads. Footings should have a mini,mum embedment of 18 inches. SITE PREPARATION ]n general, all organic and deleterious materials must be removed from areas which will receive building foundations, Engineered Fill, slabs, pavement or other areas deemed Jmportanl: by the Soils Engineer. The oil cake layer should be stripped from the site. This material will not be suitable for reuse as Engineered Fill. Weed stripping operations should include the upper 2 to 4 inches of soil to ensure removal of weed root systems and organic lopsoil. This organic material will not be suitable for reuse as Engineered Fill. The wood chips and wood located in the northwest and r~orth central portions of the site should be removed from the site. This material will not be suitable for reuse as Engineered Fill. KRAZAN & ASSOCiATES~ INC. Page No. 5 Proj. No. B89-0:~9 ft is recommended that the building foundations be supported by 2 feet of Engineered Fill. Therefore, if the footings are i8 inches deep, the total depth of recompaction would be 3 i/2 feet. The soils should be recompacted to a minimum of 98% of maximum density based on ASTM Test Method D1557. Any buried structures encountered during construction should be properly removed and backfilled. In general, any debris pits, septic tanks, cesspools or similar structures should be entirely removed. Water wells should be abandoned in accordance with ~<ern County Standards. Concrete footings should be removed to an equivalent dept. h of at least 3 feet below proposed footing elevations or as recommended by the Soils Engineer. Any other buried structures should be removed in accordance with the recommendations of the Soils Engineer, Resulting excavations should be backfilled with Engineered Fill. ENGINEERED FILL The organic-free on-site soils are predominantly silty sands. These soils will be suitable for reuse as Engineered Fill. The wood by-products and oil cake material will not be suitable for reuse as Engineered Fill. The pr'eferred materials specified for Engineered Fill are suitable for most applications with the exception of exposure to erosion. Project site winterization and protection of exposed soils during the construction phase should be the sole responsibility of the Contractor~ since he has complete control of the project site at that time. Imported fill material should be predominantly nonexpansive granular material with a plasticity index less than 10. Imported fill should be free from rocks and lumps greater than 4 inches in diameter. All import fill material should be submitted for approval to the Soils Engineer at least 48 hours prior to delivery to the site. Fill soil should be placed in lifts approximately ~ inches thick, moisture-conditioned as necessary and compacted to achieve at !east 90% of the maximum dry density as determined by ASTM D1557. Additional lifts should not. be placed if the previous lift did not meet the required dry density or if soil conditions are not stable. KRAZAN & ASSOCIATES~ INC. Page No. 6 Proj. No. B89-039. UTILITY TRENCH BACKFILL. Utility trench backfill placed in or adjacent, to buildings.and exterior slabs should be compacted ,to at least 90% relative compaction. Trench backfill in paved areas should have the same compaction requirements with the following change. Below the upper 2 feet, the trench backfill in paved areas should be compacted to at least 85% relatiw~ compaction. The Contractor is responsible for removing all the'water-sensitive settlement from the trench backfill regardless of the backfill location and compaction requirements. 'Fhe Contractor should use appropriate equipment and methods to avoid damage to the utilities and/or structures during fill placement and compaction. Select Fill around pipes and conduits should have i00% passing the No. ~ sieve and a maximum of 3% passing the No. 200 sieve. FOUNDATIONS The upper soils have low to moderate strength characteristics. It is recommended [hat the proposed structures be supported by 2 feet of Engineered Fill. The Engineered Fill will have moderately high strength characteristics and will provide a stable base for the proposed struct, ures. The proposed structures may be supported on a shallow foundation system bearing on undisturbed native soil or on Engineered Fill. Spread and continuous footings can be designed for the following maximum allowable soil bearing pressures." LOAD ALLOWABLE LOADING Dead Load Only .1875 psf Dead-Plus-Live Load 2500 psf Total Load~ including wind or seismic loads 3325 psf The footings should have a minimum dep~.h of 18 inches below pad subgrade (soil grade) or adjacent exterior grade~ whichever is lower. Footings should have a minimum width of :[2 inches regardless of load. KRAZAN & ASSOCIATES~ INC. Page No. 7 Proj. No. B89-039 The total settlement is not expected to exceed one-half inch. Differential settlement should be less than one-half inch. Most of the settlement is expected to occur during construction as the loads are applied. However, additional post-construction settlement may occur if the foundation soils are flooded or saturated. SLAB-ON-GRADE Slab-on-grade construction should be appropriate for this project. Slab-on-grade construction should have a moisture barrier incorporated into the floor slab design. Interior slabs-on-grade should have at least 2 inches of clean free-draining concrete sand placed below the floor slab. The sand should conform to ASTM C33 requirements for fine aggregate. An impervious membrane (vapor barrier) should be placed under the 2 inches of sand. This system of 2 inches of sand and a vapor barrier should be underlain by an additional 2 inches of clean concrete sand to stop capillary moisture rise, Prior to pouring concrete, the sand should be thoroughly consolidated and compacted. The upper 2 inches of: sand should be wetted during or just before the concrete pour to aid in eonerel:e curing. It is understood that the warehouse and retail facilities use frequent fork lift loading. Excess slab flexure under fork lift loading has been associated with other warehouse retail facilities. [t is recommended that the slabs be properly designed to support slab flexure. The exterior slabs should be poured separately in order to act independently of the walls and foundatio~ system. Exterior finish grades should be sloped a minimum of ~ to Z l/2% away from all interior slab areas to preclude ponding of water adjacent to the structures. All fills required to bring the building pads to grade should be Engineered Fills. LATERAL LOADING CRITERIA Lateral loads may be resisted by soil friction and by passive resistance of soils. A coefficient of friction of 0./4 may be used between the footings and the supporting soil. The passive resistance of the native material or proposed corn- KRAZAN & ASSOCIATES, INC. Page No. 8 Proj.. No. B89-039 patted fill may be assumed to be equal to the pressure developed by a fluid with a density of 350 pcf. The frictional and passive resistance of the soil may be combined without reduction in determining the total lateral resistance. A one-third increase in the above value may be used for short duration wind or seismic loads. Retaining structures may be designed for an active or at-rest pressure, depending on the wall restraints. An unrestrained wail, such as a simple eanti- lever retaining wall, can be designed for an equivalent fluid pressure of 31 pcf, which is the active earth pressure. Restrained walls, such as basement walls which cannot move, should be designed for an at-rest pressure or equivalent fluid pressure of .52 pcf. These design pressures assume the material has a mois- ture content similar to that found at the time of our exploration. These lateral pressures are earth pressure only and should be increased where hydrostatic, foundation, traffic and equipment loads are adjacent to the walls. R-VALUE TEST RESULTS ANO PAVEMENT SECTION Two R-values were obtained from the project site at the locations shown on the attached site plan. The samples were tested in accordance with State of California Materials Manual Test Designation 301. The results of the testing are as follows: R-Value Sample No. Depth Description at Equilibrium 1 12-18" Fine Sandy 39 Silt (Mt_) 2 12-18" Fine Sandy 43 Si!~ (ML) These test results are moderate and indicate fair subgrade support characteristics under dynamic traffic loads. The following ~.able shows the recommended pavement sections for various traffic indexes. Traffic Asphaltic Class 2 Compacted index Concrete Aggregate Base* Subgrade** 4.0 2.0" 4.0" 6.0" 4.5 2.0" 5.0" 6.0" 5.0 2.5" 5.0" 6.0" I<RAZAN & ASSOCIATES. INC. Page No. 9 Proj. No. B89-03c) Traffic Asphaltic Class 2 Compacted index Concrete Aggregate Base* Subgrade** 6.0 2.5" 5.0" 6.0" 6.5 3.0" 8.0" 6.0" 7.0 3.5" 8.0" 6.0" * 95% compaction based on ASTM D1557 or CAL 216 ** 90% compaction based on ASTM D1557 or CAI.. 216 If traffic indexes are not available, an estimated index of 4.5 may be used for light .automobile traffic, and an index of 7.0 for light truck traffic are typical values. SOII_-CEMENT REACTIVITY Excessive sulfate in either the soil or native water may result in an ad- verse reaction between the cement, in concrete (or stucco) and the soil. HUD/FHA and UBC have developed criteria for evaluation of sulfate levels and how they relate to cement reactivity with soil and/or water. Soil samples were obtained from the site and tested in accordance with State of California Materials Manual Test Designation 4].7. The sulfate eon- centrations detected from these soil samples were less than 0.02% and are below the maximum allowable values established by HUD/FHA and UBC. Therefore, no special design requirements are necessary to compensate for sulfate reactivity with the cement. COMPACTED MATERIAl.. ACCEPTANCE Compaction specifications a]re not the only criteria for acceptance of the site grading or other such activities. The compaction test is the most universally recognized test method for assessing the performance of the Grading Contractor. However~ the numerical test results from the compaction test cannot be used to predict the engineering performance of the compacted material. Therefore, the acceptance of compacted materials will also be dependent on the s[ability of that: material. The Soils Engineer has the option to reject any compacted material regardless of the degree of compaction if that KRAZAN & ASSOCIATES~ INC. Page No. lO Proj. No. BB9-039 material is considered to be unstable or if future instability is suspected. A specific example of rejection of fill material passing the required percent compaction is a fill which has been compacted with an in-situ moisture content significantly less than optimum moisture. This type of dry fill (brittle fill) is susceptible to future settlement if it becomes saturated or flooded. TESTING AND INSPECT[ON A representative of Krazan & Associates, Inc., should be present at the site during the earthwork activities to confirm that actual subsurface conditions are consistent with the exploratory field work. This representative can also verify that the intent of these recommendations is incorporated into the project design and construction. The represenl, ative can also provide the necessary testing so certification of conformance to project compaction specifications can be given. Krazan & Associates, [nc. will not be responsible for grades or staking, since this is the responsibility of the Prime Contractor. LIMITATIONS Soils Engineering is one of the newest divisions of Civil Engineering. This branch of Civil Engineering is constantly improving as new technologies and understanding of earth sciences improve. Although your site was analyzed using the most appropriate current techniques and methods, undoubtedly there will be substantial future improvements in this branch of engineering. In addition to improvements in the field of Soils Engineering, physical changes in the site either due to excavation or fill placement, new agency regulations and possible changes in the proposed structure after the time of completion of the soils report may require the soils report to be professionally reviewed. In light of this, the owner should be aware that there is a practical limit to the usefulness of this report, without critical review. Although the time limit for this review is strictly arbitrary~ it is suggested that 2 years be considered a reasonable time for the usefulness of this report. Foundation and earthwork construction is characterized by the presence of a calculated risk that soil and groundwater conditions have been fully revealed KRAZAN & ASSOCIATES, INC. Page No. 11 Proj. No. B89-039 by the original foundation investigation.. This risk is derived from the practical necessity of basing interpretations and design conclusions on limited sampling of the earth. The recommendations made in this report are based on the assumption that soil conditions do not vary significantly from those disclosed during our field investigation. If any variations or undesirable conditions are encountered during construction, the Soils Engineer should be notified so that supplemental recommendations can be made. The recommendations also assume that water is not allowed free access to or under foundation, slab or paved areas. The conclusions of this report are based on the information provided regarding the proposed construction. If the proposed construction is relocated or redesigned, the conclusions in this report may not be valid. The Soils Engineer should be notified of any changes so the recommendations can be reviewed and reevaluated. This report is a geoteehniea, l engineering investigation with the purpose of evaluating the soil conditions in terms of foundation design. This investigation should not be construed as an environmental study. No chemical testing for toxic analysis has been made or implied. The geotechnical data presented herewith is based upon professional interpretation utilizing the "state of the art" and a degree of conservatism deemed proper for this project. It is not warranted that such data and interpretation cannot be superseded by future geoteehnieal developments. Respectfully Submitted, KRAZAN & ASSOCIATES, INC. Dean Alexander Qeoteehnical Engineer RQE #O0205I/RCE #34274 DA/Ir 4 c plus invoice herewith 2 c Simpson-VanCuren KRAZAN & ASSOCIATES, INC. ._~ I ] I F--"~. Project Ho. ' ' Drawing Ho. Fresno Visalia Bakersfield ¢-~-~ ,o~, .. Proj. No. B89-039 APPENDIX A FIELD AND LABORATORY INVESTIGATIONS Field Investigation The field investigation consisted of a surface reconnaissance and a subsurface exploratory program. On February 15, 1989, six 4-inch exploratory borings were advanced. The boring locations are shown on the site plan. The soils encountered were logged in the field during the exploration and~ with supplementary laboratory test data, are described in accordance with the Unified Soil Classification System. Modified standard penetration l:ests were performed at selected depths. This test represents the resistance to driving a 2 1/2-inch diameter core barrel. The driving energy was provided by a hammer weighing 140 pounds falling 30 inches. Relatively undisturbed soil samples were obtained while performing this test. Bag samples of the disturbed soil were obtained from the auger 'cuttings. All samples were ret,'Jrned to our Fresno laboratory for evaluation. Laboratory Investigation The laboratory investigation was programmed to determine the physical and mechanical properties of the foundation soil underlying the site. Test results were used as criteria for determining the engineering suitability of the surface and subsurface materials encountered. In-situ moisture content, dry density, consolidation~ and direct shear tests were determined for the undisturbed samples representative of the subsurface material. These tests, supplemented by visual observation, comprised the basis for our evaluation of the site material. The logs of the exploratory borings and laboratory determinations are presented in this Appendix. MAJOR DIVISIONS SYMBOLS TYPICAL NAMES ~ GW Well-graded gravels or gravel-sand mixtures, little or no fines  Poorly graded gravels or gravel-sand mixtures, little or no fines GRAVELS GP ~ .~ '~ (More than ½ of coarse GM Silty gravels, gravel-sand-silt mixtures ~ traction · no. 4 sieve size) Z ~ .-> ~' c ~, GC Clayey gravels, gravel-sand-clay mixtures ~ -~ ~ SW Well-graded :sands or gravelly sands, little or no fines SANDS 3(5 Poorly graded sands or gravelly sands, little or no fines SP ~ A (More than ½ o! coarse O SM Silty sands, sand-silt mixtures O fraction < no. 4 sieve size) SC Clayey sands, sand-clay mixtures ME Inorganic silts and very fine sands, rock flour, silty or clayey fine sands or clayey silts with 03 slight plasticity ~ '~ ~ SILTS & CLAYS GL Inorganic clays of Iow to medium Plasticity, gravelly clays, sandy clays, silty clays, ~'~ ~, LL "~ 50 lean clays z ¢' '~ OL Organic silts and organic silty clays of Iow plasticity ~ ~,, ME Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts o ~ d SILTS & CLAYS ~ :~ c CH Inorganic clays of high plasticity, fat clays _ _ v LL >' 50 OH Organic clays of medium to high plasticity, organic silty clay. organic silts HIGHLY ORGANIC SOILS Pt !Peat and other highly organic soils UNIFIED SOIL CLASSIFICATION SYSTEM COHESIVE SOILS GRANULAR SOILS CLASSIFICATION RANGE OF GRAIN SIZES U.S. Standard Grain Size Description Blows/ff. Description , Blows/ft. Grain Type Sieve Size in Millimeters very soft <: 3 very loose <: 5 ... Boulders above 12" above 305 soft 3-5 loose 5-15 Cobbles 12" to 3" 305 to 76.2 ,, medium (firm) ~10 medium dense 16-40 Gravel 3" to no. 4 76.2 to 4.76 ' stiff 11-20 . dense 41-65 coarse (c) 3" to ¥, 76.2 to 19.1 fine (f) ¥," to no. 4 19.1 to 4.76 very stiff 21-40 ~ery dense > 6'5 Sand no. 4 to no. 200 4.76 to 0.074 hard > 40 coarse (c) no. 4 to no. 10 4.76 to 2.00 medium (m) no. 10 to no. 40 2.00 to 0.420 line (f) no. 40 to no, 200 0.420 to 0.074 CONSISTENCY CLASSIFICATION Silt & Clay below no. 200 below 0.074 GRAIN SIZE CLASSIFICATION 50 CH z 40 I~,~r' ~- 30 ~n< 20 CL ~ CH ~ & ,o _~. ~CL ML & OL 4I I 0 10 20 30 40 50 60 70 80. ~ 300 LIQUID LIMIT PLASTICITY CHART ~ ~Z~ & ASSOCIA~S Project PROPOSED COMMERCIAL C~MPLEX ARROW STREET Boring No. BAKERSF!ELD~ C~L~_FO_~N!~ PrnJ, Nh. BBq-039 DATE DRILLED: February 15. 1989 __ I~{PE OF BORING· 4 1/2" Auger HOLE ELEV: GROUNDWATER LEVEL: LOGGED BY: RH 1/4" Road tar (broken, old) on surface x 4 Very loose, slightly silty, fine SAND; i~23.9 79.0 (SP-SM); brown, moist, drills easy 5- x 4 28.7 74.8 Very loose, fine SILTY SAND (SM); brown, moist, drills easy x 15 Loose, fine SANDY SILT (ML); brown, 19.4 75.0 mo'ist, drills easy Fine to medium SAND (S['~); dark orange- brown, moist, drills easy X BOTTOM OF BORING 20-- 25-- Project PROPOSED C0MMERCI'A'[ COMPLEX '"' F--il ARROW STREET Boring No. BAKEB, SFfrln. CALIFORNIA Proj. N~ RF~q-n.'~9 DATE DRILLED: February ].5. 1989 TYPE OF BORING: 4 1/2" Auger HOLE ELEV: GROUNDWATEFI LEVEL: LOGGED BY: RH = - - ~ ~ ~ SOIL DESCRIPTION 1/4" Road tar, (old) on surface Very loose, slightly silty fine SAND; x 19 (SP-SM); light brown, moist, drills easy 7.3 92.4 Medium dense below 6" Medium dense, fine SANDY SILT (ML); brown, 11.4 94.2 s- x 17 moist, drills easy x 18 9.1 105.6 10~ Fine to medium SAND (SW); tan, moist, drills easy X ~5 BOTTOM OF BORING 20-- 25-- Project pRoPOSED C0MMERCI~ COMPLEX ARROW STREET Boring No. B/LI(ERSF!ELD~ cJl~ TFnRN~A Prnj~ Nh_ R~q-o~q DATE DRILLED: February 15. 1989 TYPE OF BORING: 4 1/2" Auger HOLE ELEV: GROUNDWATER LEVEL: LOGGED BY: RH ~ ~ ~ SOIL DESCRIPTION 'a:~- g og~ o°A=$: : A x 7 (SP-SM); brown, moist, drills easy 22.3 84.5 ~~ Loose below 2 1/2' Loose, fine SANDY SILT (ML); brown, moist, 5- x 10 drills easy 13.0 90.4 Medium SAND (SP); grey-white, slightly moist, drills easy ~o- x 14 8.8 105.2 15- BOTTOM 0F BOR[NG 20-- I 25-- Project PROPOSED CO~ COMPLEX ~ ARROW STREET Boring No. ~-~ I~J~Y,F.~RSF-IE. tD, CAL!Fn[~NTA Proj. Nn ggq-ll3q DATEDRILLED:_~j~bJ~I]~V 15. 1989 TYPE OF BORING: 4 1/2" Auger HOLE ELEV: GROUNDWATER LEVEL: LOGGED BY: RH ' ~ ~ SOIL DESCRIF'TION ~ ~ ~ ~ ~: ~ Fine SILTY SAND (SH); brown, moist, x drills easy 5-- x Fine SANDY SILT (ML); brown, moist, drills easy X 10~ BOTTOM OF BORING 15-- 20-- 25-- Project PROPOSED COMMERC]'A~_ COMPLEX ARROW STREET Boring No. BAY, EJtSF_~ELD~ r_A~ TFORNIA Prnj. Nn RRq-ll~q I ~ I DATE DRILLED: February 15. 1989 TYPE OF BORING: 4 1/2" Auger HOLE ELEV: GROUNDWATER LEVEL: LOGGED BY:. RH Wood chips, on surface X ~ Fine SILTY SAND (SM); brown, moist, drills easy 5- x Fine SANDY SILT (ML); brown, moist, drills easy Grey, very moist below 8' X BOTTOM OF BORING 20-- 25-- Project PROPOSED COMMERb~, COMPLEX "' F'---1 ARROW STREET Boring No. BAF, F. JtSF_TELD~ r_ALT_F0~NIA Prnj_ Nh_ DATE DRILLED: February 15, 1989 __ TYPE OF BORING: 4 1/2" Auger HOLE ELEV: GROUNDWATER LEVEL: LOGGED BY: RH 1/4" Road t~r (old, broken) on surface x Fine SILTY SANO (SM)~ ~rown, dr~s easy F~ne to coarse SAND (SN)~ tan, 5- x moist, drJ~s 10-- X BOIIO~ OF gORI~¢ 20-- 25-- GRAIN SIZE ANALYSIS SIEVE OPENINGS IN INCHES U.S. STANDARD SIEVE NUMBERS H'YDRONIETER 3 2 11/2 I 3/4 1/2 3/8 1/4 4 6 14 16 20 30 40 50 70 1OO 140 200 100 0 90 10 aD 2o I- ~ ?o ,o rn 6o ,40 Z so 5o - ~- 0 I- Z 40 eO I.u Z n, U b.I 30 70 20 80 lO 90 0 IOO IOO 50 IO 5 05 O.I 0.05 O.OI O,OOS 0.OO! GRAIN SIZE IN MILLIMETERS I GRAVEL SAND SILT OR CLAY I COARSE I FINE COARS£I MEDIUM I FINE 3 3/4 40 100 40 60 PROJECT NO. B89-039 SAMPLE NO. Boring No. 1 @ 2' CLASSIFICATION Slightly Silty Fine Sand {UNIFIED SOILS CLASSIFICATION) KRAZAN & ASSOCIATES. INC.m CONSOLIIDATION TEST B89-039 I 2' 4 Sli,qhtl~y SiltS Fine Sand 2 z Z 0 U z n 4 0.1 1.0 10.0 100.0 PRESSURE/KSF KRAZAN & ASSOCIATES, INC. CONSOLIDATION TEST PROJECT NO. BORING NO. DEPTH BLOWS PER Ft. SOIL TYPE B89-039 2 2' Z Z O U F- z 7 0.1 1.0 I0.0 100.0 PRESSURE/KSF KRAZAN & ASSOCIATES, INC. SHEER STRENGTH DIAGRAM (DIRECT SHEAR) PROJECT NO. RRq-I'l~q BORING # 1 ANGLE OF INTERNAL FRICTION 32° DEPTH ?' COHESION 113r'1 p':; 'F 3000 I z bJ n- 2000 n- < hi lDO0 lO00 2000 3000 NORMAL LOAD - PSF SHEER STRENGTH DIAGRAM (DIRECT SHEAR) PROJECT NO. RRq-R~q BORING # 2 ANGLE OF INTERNAL FRICTION 28° 2' DEPTH COHESION 1.~(~ I~'~ 3000 Z n~ 2000 n- < I Iooo 1OOO 2000 3000 NOR~,IAL LOAD - PSF KRAZAN & ASSOCIATES, INC. Compaction Testing Engineered Septic Systems Construction Testing Geotechnical Investigations PROJECT NO. B89-039 SAMPLE NO, 2 SOIL DESCRIPTION:Fine Sandy SiltEXUDATION PRESSURE (PSI1 800 700 600 500 400 300 200 100 ,,100 " 40 0 ~ 80 I- 32 ) ~ ' ; 60 5O m 3o 3o p 8 i 4- ~ ~ 0 O 4 8 12 16 20 24 28 32 36 40 44 48 52 COVER THICKNESS BY EXPANSION PRESSURE ' TENTHS OF FEET SPECIMEN A B C EXUDATION PRESSURE IPSll 190 800 298 EXPANSION DIAL 1.0001") 0 0 0 EXPANSION PRESSURE (PFS) 0 0 0 RESISTANCE VALUE "R" 3~ 52 43 0/0 MOISTURE AT TEST 17.6 15.3 16.4 DRY DENSITY AT TEST IPCF) 104 110 107 43 "R" VALUE AT 300 PSI EXUDATION PRESSURE "R" VALUE BY EXPANSION PRESSURE (TI ---- ) N/A Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93727 ° (209) 291-7337 Bakersfield (805) 393-2343 [] Visal/a (209~ 625-8251 ['3 Merced (209) 383-3993 APPENDIX C PAVEMENT SPECIFICATIONS 1. DEFINITIONS - The term "pavement" shall include asphalt concrete surfacing, untreated aggregate base, and aggregate subbase. The term "subgrade" is that portion of the area on which surfacing, base, or subbase is to be placed. The term "Standard Specifications" hereinafter referred to is the January 1982 Standard Specifications of the State of California, Department of Transportation, and the "Materials Manual" is the Materials Manual of Testing and Control Procedures, State of California, Department of Public Works, Division of Highways. 'I~ne term "relative compaction" refers to the field density expressed as a p_=rcentage of the maximum laboratory density as defined in the applicable tests outlined in the Materials Manual. 2. SCOPE OF WORK - This portion of the work shall include all labor, materials, tools and equipment necessary for and reasonably incidental to the completion of the pavement shown on the plans and as herein specified, except work specifically noted as '"Work Not Included." 3. PREPARATION OF THE SUBGR~]E - The Contractor shall prepare the surface of the various subgrades receiving subsequent pavement courses to the lines, grades, and dimensions given on the plans. The upper 6 inches of the soil subgrade beneath the pavement section shall be compacted to a minimum relative compacticm of 90 per cent. The finished subgrades shall be tested and approved by the Soils Engineer prior to the placement of additional pavement courses. 4. USrI%RFATED AGGREGATE BASE - The aggregate base course shall be spread and compacted on the prepared subgrade in conformity with the lines, grades, and dimensions shown on the plans. The aggregate base material shall conform to the requirements of Section 26 of the Standard Specifications for Class 2 material, 1-1/2 inches maximum size. The base course material shall be compacted to a minimum relative compaction of 95 per cent. The base material shall be spread and compacted in accordance with Section 26 of the Standard Specifications. The material shall be spread in layers not exceeding 6 inches and each layer of base course shall be tested and approved by the Soils Engineer prior to the placement of successive layers. 5. AGGREFaATE SUBBASE - The aggregate subbase shall be spread and compacted on the prepared subgr~mde in conformity with the lines, grades, and dimensions shown on the pleas. The aggregate subbase material shall conform to the requirements of Section 25 of the Standard Specifications for Class 2 material. The subt~sse material shall be compacted to a minimum relative compaction of 95 per c4=_nt, and it shall be spread and compacted in accordance with Section 25 of the Standard Specifications. Each layer of subbase shall be tested and approved by the Soils Engineer prior to the placement of successive layers. 6. ASPHALTIC CONCRETE SURFACING - Asphaltic concrete surfacing shall consist of a mixture of mineral aggregate and paving grade asphalt, mixed at a central mixing plant and spread and compacted o~ a prepared base in conformity with the lines, grades, and dimensions shown on the plans. The viscosity grade of the asphalt shall be AR-4000. The mineral aggregate shall be Type B, 1/2-inch maximum size, medium grading, and shall conform to the requirements set forth in Section 39 of the Standard Specifications. The drying, proportioning, and mixing of the materials shall conform to Section 39. The prime coat, spreading and compacting equipment, and spreading and compacting the mixture shall conform to the applicable chapters of Section 39, with the exception that no surface course shall be placed when the atmospheric temperature is below 50 degrees F. The surfacing shall be rolled with a combination steel-wheel and pneumatic rollers, as described in Section 39-6. The surface course shall be placed with an approved self-propelled mechanical spreading and finishing machine. 7. FOG SEAL COAT - The fog seal (mixing type asphaltic emulsion) shall conform to and be applied in accordance with the requirements of Section 37. APP~I~DIX B E~THWORK SPECIFICATIONS S~OPE OF WORK: These specifications and applicable plans pertain to and include all earthwork associat(.~ with the site rough grading, including but not limited to the furnishing of all labor, tools, and equipment necessary for site clearing and grubbing, stripping, preparation of foundation materials for receiving fill, excavation, processing, placement and compaction of fill and backfill materials to the lines and grades shown on the project grading plans, and disposal of excess materials. PERFORMANCE: The Contractor shall be responsible for the satisfactory completion of all earthwork in accordance with the project plans and specifications. This work shall be inspected and tested by a representative of Krazan and Associat. es, Inc., hereinafter known as the Soils Engineer and/or Testing Agency. Attai~.~_nt of design grades when achieved shall be certified to by the project Civil Engineer. Both the Soils Engineer and the Civil Engineer are the Owner's representatives. If the Contractor shDuld fail to meet the technical or design requirements embodied in this document and on the applicable plans, he shall make the necessary readjustments until all work is deemed satisfactory as determined by both the Soils Engineer and the Civil Engineer. No deviation from these specifications shall be made except upon written approval of the Soils Engineer, Civil Engineer or project Architect. No earthwork shall be performed without the phYsical presence or approval of the Soils Engineer. The Cc~tractor shall notify the Soils Engineer at least two working days prior to the commencement of any aspect of the site earthwork. The Contractor agrees that he shall assume sole and complete responsibility for job site conditions during the course of construction of this project, including safety of all persons and property;, that this requirement shall apply continuously and not be limited to normal working hours; and that the Contractor shall defend, indemnify and hold the Owner and the Engineers harmless from any and all liability, real or alleged, in connection with the performance of work on this project, except for liability arising from the sole negligence of the Owner or the Engineers. T~CHNICAL R/DQUI~S: All oumpacted materials shall be densified to a density not less than 90 per cent relative compaction based on ASTM Test Method D1557-78, UBC or CAL-216, as specified in the technical portion of the Soil Engineer's report. The location and frequency of field density tests shall be as determined by the Soils Engineer. The results of these tests and compliance with the:se specifications shall be the basis upon which satisfactory completion of work will be judged by .the Soils Engineer. SITE AND FOUNDATION CONDITION'S: The Contractor is presumed to have visited the site and to have familiarized himself with existing site ccmditions and the contents of the data presented in the soil report. The Contractor shall make his own interpretation of the data contained in said report, and the Contractor shall not be relieved of liability under the contract for any loss sustained as a result of any variance between conditions indicated by or deduced from said report ~ad the actual conditions encountered during the progress of the work. DUST CONTRDL: The work includes dust control as required for the alleviation or prevention of ~ny dust nuisance on or about the site or the borrow area, or off-site if caused by the Contractor's operations either during the performance of the earthwork or resulting from the conditions in which the Contractor leaves the site. The Contractor shall assume all liability, including court cc~ts of codefendants, for all claims related to dust or windblown materials attributable to his work. SITE PREPARATION Site preparation shall" consist of site clearing and grubbing and the preparation of foundation materials for receiving fill. CLEARING AND GRUBBING: The Contractor shall accept the site in its present condition and shall demolish ~d/or remove from the area of designated project earthwork all structures, both surface and subsurface, trees, brush, roots, debris, organic matter, and all other matter determined by the Soils Engineer to be deleterious. Such materials shall become the property of the Contractor and[ shall be removed from the site. Tree root systems in proposed building areas should be removed to a minimum depth of three (3.0) feet and to such an areal extent which would permit removal of all roots larger than one (1) inch. Tree root removal in parking areas may be limited to the upper one and one-half (1-1/2) feet of the ground surface. Backfill or tree root excavation should not be permitted until all exposed surfaces have been inspected and the Soils Engineer is present for the proper control of backfill placement ~nd compaction. Burning in areas which are to receive fill materials shall not be permitted. SUBGRADE PREPARATION: Surfaces to receive engineered fill, building or slab loads shall be prepared as outlined above, scarified to a depth of six (6) inches, moisture-conditioned as necessary, and compacted to 90 per cent relative compaction. Loose and/or areas of disturb~l soils shall be moisture-conditioned as necessary and compacted to 90 l~r cent relative compaction. All ruts, hummcx~ks, or other uneven surface features shall be removed by surface grading prior to placement of ~my fill material. All areas which are to receive fill materials shall 1~ approved by the Soils Engineer prior to the placement of the any fill material. All excavation shall be accomplished to the tolerance normally defined by the Civil Engineer as shown on the project grading plans. All overexcavation below the grad~ specified shall be backfilled at the Coatractor's expense and shall be compacted in accordance with the applicable technical requirem~,nts. FILL AND BACKFILL MATERIAL No material shall be moved or compacted without the presence of the Soils Engineer. Material from the required site excavation my be utilized for constructing site fills provided prior approval is given by the Soils Engineer. All materials utilized for constructing site fills shall be free from vegetal or other deleterious matter as determined by the Soils Engineer. PLA~, SPREADING AND COMPACTION The placement and spreading of approved fill mterials and the processing and compaction of approved fill and native materials shall be the responsibility of the Contractor. However, compaction of fill materials by flooding, ponding, or jetting shall not be permitted unless specifically approved by local code, as well as, the Soils Engineer. Both cut and fill shall be surface compacted to the satisfaction of the Soils Engineer prior to final .acceptance. No fill material shall be placed, spread, or rolled while it is frozen or thawing or during unfavorable wet weather conditions. When the work is interrupted by heavy rains, fill operations shall not be resumed until the Soils Engineer indicates that the moisture content and density of previously placed fill are as specified. PHASE Ill SOIL SAMPLING PROPIOSED OFFICE CLUB - COSTCO EXPANSION AILROW STREET AND GILMORE AVENUE BAKERSFIELD, CALIFORNIA November 7, 1989 Project No. E89-039 Prepared for: Lance-Kashian & Co. Attn: Mr. Ed Kashian 1100 West Shaw Avenue Frenso, California 93711 Prepared by: Krazan & Associates, Inc. Environmental Division 4816 East Shields Avenue Fresno, California 93726 (209) 453-9637 krazan & associates, inc. engineers, geologists, environmental specialists TABLE OF CONTENTS Project No. E89-039 Page SITE DESCRIPTION & LOCATION 1 Drawing No. 1 - Vicinity Map (Follo~4ng Page 1) SITE HISTORY 2 Drawing No. 2 - Site Map (Following Page 2) Drawing No. 3 - Detail A (Follo~4ng Page 2) Table I 3 Table II 5 Table III 6 Table IV 7 Table V 8 Table VI 9 GEOLOGIC AND HYDROLOGIC SETTINGS 12 Geology 12 Hydrology 12 PURPOSE AND SCOPE OF THIS INVESTIGATION 12 SAMPLING & LABORATORY TESTING PROTOCOL 13 FENDINGS OF THIS INVESTIGATION 13 Table VII 14 Table VIII 15 RECOMMENDATIONS 16 LIMITATIONS 17 APPENDIX A (Following text) KRAZAN ASSOCIATES, INC. Construction Testing and Inspection Environmental Engineering Laboratory Soils Testing November 7, 1989 Project No. E89-039 Lance-Kashian & Company Attn: Mr. Ed Kashian 1100 West Shaw Avenue Fresno, California 93711 RE: Phase III Soil Sampling Proposed Office Club-Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California Dear Mr. Kashian: In accordance with your request and the authorization of Ms. Dolores Gough of the County of Kern, Department of Environmental Health Services, we have performed the additional soil sampling at the above-referenced project site. The sampling was accomplished in an attempt to facilitate site closure and disposal of previously excavated soils. The results of our work are detailed in this report as follo~¥s. SITE DESCRIPTION & LOCATION The subject site is a rectangular shaped property encompassing approximately 5 acres south of the existing Costco Home Club development. It is currently a portion of the Don Keith Trucking Company yard. The property is located on the south~vest corner of Arrow Street and Gilmore Avenue in a commercial and light industrial area adjacent to Highway 99 in Bakersfield, California (See \,'icinitv Map). According to the U.S Geological Survev 7.5 minute Oildale, California topographic quadrangle map, the property occupies a portion of the northeast 1/4 of the southeast 1/4 of Section 23, T29S, R27E, Moun.t Diablo Baseline and Meridian. Main Office: Fresno/Clovis * 3860 N. Winory · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 [] California (800) 233-5050 [] FAX (209) 291-5010 ..1 ~~_ ,.. ~ ~ Chi ~nc~ .''" ~/'.~. ". ~ -.~ .; ' ,~ · I ~ 7~ ~'~.~.~ ,: ..~ ~ ~ ~ [, ~ '. -. .- ". .... ' ~. 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'- ; ~' [ :. : ,~..". ject No. E89-039 Page No. 2 SITE I-[ISTORY A March 22, 1989 Level I Hazardous Sulz,stance Site Assessment (HSSA) Report was completed by our firm for the proposed Office Club - Costco Expansion. The Level 1 HSSA was requested to identify any obvious toxic or hazardous materials at or near the site. At the time of the Level I HSSA, piles of firewood belonging to Swen's Firewood occupied the northeast portion of the subject site. According to Don Keith of the Don Keith Trucking Company, vacuum bottoms were located just beneath the surface in the area underneath the firewood. The presence of the firewood obscured surficial evide~ce of the vacuum bottoms. The site surface was covered by a layer of cracked asphalt and a moderate weed growth was growing up from the cracks through the asphalt. Out-of-service tanks trailers owned by Don Keith Trucking occupied the southwest portion of the slabject site. Several areas of surface discoloration were noted including a ten square foot area located in the southeast portion of the subject property. The discoloration appeared to be motor oil or waste oil and was confined to the asphalt and upper fewer inches of soil. During the Level I HSSA investigation, soil samples were obtained from beneath areas that exhibited signs of minor surface contamination. An additional sample was obtained in an area that had been covered by firewood and where a substance known as "vacuum bottoms" was reported to exist. The analytical results of samples obtained during the Level I HSSA are detailed in Table I. For the locations of the samples obtained, please refer to Figure 2. Based on these results it was determined that the surface contamination noted in a few areas on site had not migrated very far vertically into the soil (one-half to two feet). It was also concluded that there had been some leaching of hydrocarbons into the soil beneath the vacuum bottoms and that further testing would be necessary to determine the extent of the vacuum bottoms and any materials that may have leached from it. KRAZAN & ASSOCIATES, INC. -" - - .... :"'"""~'L~ _~-:', KRAZAN & ASSOCIATES 'r~-'i- ~ . Drawn by: .~,. Approved by: Hojecl Ho, Drawing: No. ~-~ Merced Fresno Visalia Bakersfield ject No. E89-039 Page No. 3 TABLE I Concentrations of Petroleum Constituents in Soils Level I HSSA Report March 22, 1989 Proposed Office Club - Costco Expansion Bakersfield, California (Concentration:; in parts per million) Test Method and Constituents Sample #1 Sample #2 Sample #4 Sample #6 Sample #7 Sample #8 @ 1.5' @ 2.5' @ 2.5' Gl.0' @1.5' @ 3.5' EPA 9071: Oil & Grease 65 · 40 1,015 · · EPA 7420: Total Lead 2.1 2.0 2.0 ° o · DOHS LUFT: Total Petroleum Hydrocarbons · · N D N D N D N D (Diesel) EPA 8020: Benzene · · · · N D N D Toluene · · · · N D N D _ Ethylbenzene · · ° · N D N D Total Xylenes · · · · ND ND Isopropylbenzene · · · · N D N D EPA 8015M: Total Petroleum · · ° ° ND ND Hydrocarbons · · · ° N D N D (Gasoline) Note: Sample Nos. 3 and 5 were not analyzed. ND = None detected · = Not tested for this constituent KRAZAN & ASSOCIATES, INC. ject No. E89-039 Page No. 4 On April 6, 1989, the Kern County Hea'lth Department issued a letter indicating that further sampling and analysis would be necessary before a site clearance could be given. A work plan for a site characterization investigation dated May 15, 1989 was written and submitted to the client and the Kern County Environmental Health Department for approval. On June 20, 1989, the field portion of the investigation was commenced following approval by both parties. Additional soil samples were collected in early July. Sampling characterization operations conducted during the June/July investigation consisted of: 1. Eighteen soil samples collected from the sidewalls and bottom of a large excavation located in the northeast comer of the subject property. Another party had removed the soil from this former location of vacuum (tank) bottoms prior to our firm's arrival for site characterization operations. These vacuum bottoms were noted on the Level I HSSA but were inaccessible at that time for ~sampling. 2. One temporaw groundwater monitoring well was installed, purged, sampled, then properly abandoned. 3. One shallow boring was advanced in the location of sample Nos. 1 and 2 (taken during the Level I HSSA) on the extreme western edge of the site. The boring was sampled at depths of 4 and 4.5 feet. 4. Numerous composite samples of soil spoil piles from the excavation were collected. Our July 1989 site characterization report summarized the soil profile as being a fine to medium sand from grade to a depth of approximately 19 feet. From 19 feet below grade to approximately 24 feet depth, an iron stained silt was present. From 24 feet to the bottom of our boring, a micaceous fine sand dominated the profile. During our June/July 1989 investigation, soil samples were obtained from the excavation for chemical analysis. The results of these analyses are summarized in Table II. Please refer to Figure 3 for sample locations. KRAZAN & ASSOCIATES, INC. ect No. E89-039 Page No. 5 TABLE II Concentrations of Metals in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample I.D. Location Sb A~s B._v.eCci _CCr Cu Pb ~ N__ii S~e A_6_g TI Z__o.n 3 Excavation ND 5.5 ND ND 7.5 28 17 ND 4.6 ND ND ND 36 '7 Excavation 'ND 10 ND ND 11 39 26 ND 6.8 ND ND ND 47 11 Excavation ND 13 ND ND 5.4 24 13 ND 3.1 ND ND ND 29 14 Excavation ND 4.8 ND 0.8 6.3 25 16 ND 3.5 ND ND ND 33 16 Excavation ND 7.5 ND 0.6 6.9 25 15 BDL 4.0 ND ND ND 30 17 Excavation ND 13 ND ND 1!5 44 29 ND 8.5 ND ND ND 74 Detection Limit N/A 0.5 1.0 0.5 0.5 0..5 0.5 1.0 0.2 1.0 1.0 0.5 1.0 0.5 Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadnium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver T1 = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. Note: Samples 1-2, 4-6, 8-10, 12-13, 15, and 1~I were not analyzed. Also during our June/July 1989 investiga~:ion, composites were obtained of the spoils generated during the excavation which took place prior to our field investigation. The reason for obtaining these samples was to facilitate the disposal of these soils. For the results of the analysis performed, please refer to Tables III and IV. KRAZAN & ASSOCIATES, INC. ject No. E89-039 Page No. 6 TABLE III Concentrations of Total Metals in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) .. Sample I.D. Location Sb A~s B~e C_zd_ Cr Cu Po H__g N.__ii S_~.e ~ TI Zn SC-1 Composite of Soils ND 5.3 ND 0.7 6.8 26 20 ND 3.9 ND ND ND 39 SC-2 Composite of Soils ND 3.8 ND 0..5 4.4 19 10 ND 2.2 ND ND ND 24 SC-3 Composite of Soils ND 3.3 ND ND 4.0 16 8.8 ND 1.9 ND ND ND 18 Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadnium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver TI = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. · = Sample not analyzed KRAZAN & ASSOCIATES, INC. No. E89-039 Page No. 7 TABLE IV Concentrations of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in part per million) Ethyl- Sample I.D. Benzene Toluene benzene Xylenes TVH Oil & Grease Excavation Sample #3 · · · · ° < 50 Excavation Sample #7 · · · ° ° < 50 Excavation Sample #11 · · ° ° · < 50 Excavation Sample #14 0.02 0.02 ND ND ND 550 Excavation Sample #16 ND ND ND ND ND < 50 Excavation Sample #17 ° ° ° ° · < 50 Spoils Composite #1 (SC-l) 0.03 0.04 ND ND ND 510 Spoils Composite #2 (SC-2) ND 0.27 ND ND ND 61 Spoils Composite #3 (SC-3) ND ND ND ND ND < 50 ND = None detected at the detection limits noted on the attached analytical reports. TVH = Total Volatile Hydrocarbons by EPA 8015M · = Sample not analyzed As another part of our June/July 1989 investigation, a single boring was advanced to a depth of 30 feet below grade. The purpose of the boring was for use in the installation of a temporary 2-inch diameter groundwater monitoring well. While advancing the boring, soil samples were obtained for logging purposes only. Following well installation, a groundwater sample was obtained for chemical analysis. The results of that analysis are detailed in Table V as follows. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 8 TABLE V Concentrations of Total Metals in Water Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) .Sample Location SI> A._gs B_.~e Cci C_r.r Ch__ Po Hg N_.ii S_ge A__g TI Z_..o_n MW-A ND ND ND ND ND ND ND ND ND ND ND ND ND Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadnium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver T1 = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical report. During our June/July 1989 investigation, two additional soil samples were obtained from a depth of 4-5 feet below grade in the former #1 and #2 soil sample location (sampling conducted during the original Level HSSA). These samples were obtained in order to further define the vertical extent of oil and grease concentrations in this area. The results of those analyses are detailed in Table VI as follows. KRAZAN & ASSOCIATES, INC. ject No. E89-039 Page No. 9 TABLE VI Concentrations of Total Lead and Oil & Grease. in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations, are in parts per million) Sample I.D. Depth Total Lead Oil & Grease #9 4 feet 16 180 #10 4.5 feet 16 220 BG (background) 4 feet 6.1 · Based upon review of the data obtained during our June/July 1989 investigation, coupled with published information regarding previous inveshgations, and geologic/hydrologic conditions, the following conclusions were stated in our July 1989 report. 1. Petroleum constituents related to the surface release of petroleum products were found in the subsoils beneath the site. 2. The contaminants present appear to consist of hea~Ly end petroleum hydrocarbons, and minor concentrations of some metals. 3. Petroleum constituents were shown by this investigation to exist in the subsoils at the bottom of the excavation at a depth of approximately 10 feet below grade. An area of approximately 2100 square feet appears to have contained contaminated soils. Except for near Sample No. 14, collected from the bottom of the excavation, these soils appear to have been removed. 4. Petroleum constituents in the subsoils appear to increase in concentration with depth near the location of Soil Sample Nos. 9 and 10 on the western edge of the property (See Table VI above). KRAZAN & ASSOCIATES, INC. ject No. E89-039 Page No. 10 5. Groundwater beneath the project site exists at a depth of approximately 22 feet below grade. 6. Based on the limited scope of our investigation, we possess no evidence that groundwater resources beneath the site have been impacted by petroleum constituents. In a September 1, 1989 letter from Ms. Dolores Gough of the County of Kern Department of Environmental Health Services, the following comments regarding our July 1989 report were listed. 1. On the northeast section of the site, (where vacuum bottoms and firewood previously existed), the bottom of the excawation which is about 10 feet had 550 ppm of oil and grease. California Code of Regulations Title 22 metals were detected in concentrations below the TTLC. 2. Groundwater which was encountered at 22 feet was analyzed for Title 22 metals and all exhibited none detected concentrations. Groundwater, however, was not tested for oil and grease. The report did not present a correlation between metals and oil and grease leaching potential, therefore, there is no definitive proof that the quality of the water was not degraded. 3. On the northwest section of the site, (where former sample #1 and #2 were retrieved), the level of oil and grease increased from 180 ppm at 4 feet to 220 ppm at 4.5 feet. Based upon the conclusions of our investigation and the comments of the County of Kern Department of Environmental Health Services, the following recommendations were given in a September 25, 1989 letter to Mr. Ed Kashian of Lance Kashian & Company of Fresno, California. 1. The limits of the entire soil contamination are not fully defined in the area of Soil Sample Nos. 9 and 10 (northwest portion of the site). Further definition mav be accomplished by additional sampling during either an additional soil boring or excavation. Samples would be collected from depths of 5, 6, 7, 8, 9, and 10 feet below grade for oil and grease analysis. In the event that oil and grease concentrations attenuate to a concentration of 50 ppm or less it is our recommendation that no further investigation be required in this area. The value of 50 ppm was chosen since this value is the detection limit for this analysis at several state approved labs in the San Joaquin Valley. KRAZAN & ASSOCIATES, INC. ject No. E89-039 Page No. 11 2. Because the vertical extent of the soil contamination was not fully defined in the area of Sample No. 14, additional excavation and sampling may be the most cost effective method of further definition. Since concentrations of the metals obtained from this area during past investigations were likely to have reflected predominantly background levels (well below C.A.C. Title 22 Total Threshold Limit Concentrations), only analysis for the detection and concentration of BTXE (EPA 8020), and oil and grease should be employed. 3. In the event that detectable concentrations of BTXE and concentrations above 50 ppm oil and grease are present in the soill to the depth in which groundwater is encountered in the vicinity of former Sample No. 14, a groundwater monitoring well should be installed to verify the absence of oil and grease in groundwater. If installed, the groundwater monitoring well should consist of 2-inch diameter, Schedule 40 PVC pipe with 0.020-inch slotted openings. The well should be constructed so that the piezometric surface would be located within a 20 foot screened interval. Above the screened section should exist a 2 inch diameter Schedule 40 PVC well casing. The filter medium would consist of a sand of 0.033 to 0.093 inch diameter grain size and extend to at least two feet above the slotted interval. Above the filter medium, a seal of a minimum three foot thickness should be established using bentonite pellets. The remaining annulus (from the bentonite seal to the surface vault) should consist of a six sack sand/cement slurry, with approximately 3% bentonite added to reduce shrinkage away from the well pipe..4, surface vault should be placed on the monitoring well to provide a flush surface access to the locked well head. 4. Following the additional excavation (see recommendation #2) three or four composite samples should be obtained from the excavated spoils. In the event that the concentrations encountered are similar to those detailed in our July 1989 report, disposal at the China Grade Landfill should be explored following obtaining a letter of approval from the County of Kern Department of Environmental Health Services, and approval by the landfill. KRAZAN & ASSOCIATES, INC. roject No. E89-039 Page No. 12 GEOLOGIC AND HYDROLOGIC SETTINGS Geolom/ Bakersfield is located in the southern portion of the San Joaquin Valley of California. The San Joaquin Valley is a structural trough bounded on the west by the Coast Ranges and on the east by the Sierra Nevada. Subsurface materials in the southern San Joaquin Valley are composed primarily of alluvium from Sierra Nevada source rocks deposited by the Kern River and its tributaries. These soils are primarily mixtures of silts and sands. The U.S. Geological Survey 7.5 minute Oildale, Calif. topographic quadrangle map shows the elevation of the project site to be approximately 405 feet above mean sea level. Hydrolog-y. Bakersfield is in the San Joaquin Basin }Hydrology Study Area which is primarily an arid to semi-arid environment. Within the Study Area, thirty-nine groundwater basins and areas of potential groundwater storage has been identified. More specifically, Bakersfield is within the 70 square mile Kern County Basin. Below the project site, there is believed to be two main aquifers separated by an aquitard of regional extent. This aquitard is locally referred, to as the "300 foot clay'. The aquifer above the clay layers is referred to as unconfined and that below the clay layers is called confined. The upper unconfined aquifer is generally not used for domestic water supply, but is pumped extensively for agricultural use. The lower confined aquifer is used for both domestic and agricultural purposes. According to the Kern Water Agency reports on water conditions (including District #4 ) for the ),ears 1982 to 1987, the depth to the groundwater in the vicinity of the project site is between 10 and 15 feet below grade. PURPOSE AND SCOPE OF THIS INVESTIGATION The purpose of this investigation was to determine the vertical extent of petroleum constituents in the area of the former Sample Nos. 9, 10, and Sample No. 14 (July 1989 report) located at the extreme western and northeastern portions of the project site, respectively. Additionally, composite samples were obtained of the excavated soil to determine an appropriate method of disposal. KRAZAN & ASSOCIATES, INC. ect No. E89-039 Page No. 13 SAMPLENG & LABORATORY TESTING PROTOCOL Sampling was conducted on October 11, i[989 under the guidelines established by the Kern County Environmental Health Department, California Regional Water Quality Control Board, the California State Department of Health Services (DHS), and the United States Environmental Protection Agency (EPA). The sampling was accomplished following the approval of Ms. Dolores _ Gough of the Kern County Environmental Health Department. Samples were obtained from a backhoe bucket or excavation bottom (remote sampler) by pushing stainless steel tubes. Aluminum foil was, placed over both ends. Each tube was then capped with tight fitting plastic caps and secured by electrical tape. All samples were labeled and placed in a cooler chest which contained synthetic ice. Samples were then transported under chain of custody protocol to a state-approved laboratory for analysis. All nineteen samples were analyzed for the detection and concentration of oil and grease. Additionally, selected samples were analyzed for the detection and concentration of priority pollutant metals, benzene, toluene, ethylbenzene, total xylenes, and/or total lead. FINDINGS OF THIS INWESTIGATION Following collection, the soil samples from the project site, all 19 samples were transported to a state-approved laboratory for chemical analysis. The results of those analyses are summarized in Table VII and VIII as follows: KRAZAN & ASSOCIATES, INC. ect No. E89-039 Page No. 14 TABLE VII Concentration of Petroleum Constituents in Soil Phase Ii[I Soil Sampling Proposed Office: Club-Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California October 11, 1989 Sampling (All concentrations are in parts per million) Ethyl- Sample I.D. Sample Location O&G Total Pb Benzene Toluene benzene Xylenes A1 '14 @ 12' ! ND · ND ND ND ND A2 14@13' i ND · ND ND ND ND A3 14 @ 14' ND · ND ND ND ND A4 14@15' / ND · ND ND ND ND A5 14@16' I ND · ND ND ND ND A6 14@17' ! ND · ND ND ND ND A7 14@18' ~i ND · ND ND ND ND A8 14@19' / ND · ND ND ND ND / A9 14 @ 20'" ND · ND ND ND ND Al0 **10 @ 5'~ ND 18 ND 0.03 ND 0.04 Al2 10 @ 7' ,) ND 21 Al3 10 @ 8' ND 15 ' ' A14 Sludge 470,000 Al5 S. Spoils #1 280 · ND ND ND ND Al6 S. Spoils @ 4' 230 · ND ND ND ND Al7 S. Spoils @ 5' 10" ND · ND ND ND ND Al8 N. Spoils @ 4' 280 · ND ND ND ND Al9 N. Spoils @ 6' ND · ND ND ND ND · = Sample not analyzed ND = None detected at the detection limits noted on the attached analytical reports. O&G = Oil and Grease by EPA Method 413.1. Total Pb = Total Lead by EPA Method 7421. * = Former location of Sample No. 14 taken during the June/July 1989 investigation ** = Former location of Sample No. 10 taken during the June/July 1989 investigation. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 15 T~ttBLE VIII Concentration of Total Metals in a Sludge Phase III Soil Sampling[ Proposed Office Club-Costco Expansion Arrow Street .and Gilmore Avenue Bakersfield, California October 11, 1989 Sampling (All concentrations are in parts per million) Concentration in Sample #Al4 Constituents (Spoils Sludge) Antimony (Sb) <2.5 Arsenic (As) <5.0 Beryllium (Be) <2.5 Cadmium (Cd) <2.5 Chromium (Cr) 16 Copper (Cu) 20 Lead (Pb) 5.0 Mercury (Hg) 3.6 Nickel (Ni) 36 Selenium (Se) <5.0 Silver (Ag) <2.5 Thallium (Ti) <5.0 Zinc (Zn) 19 < = Less than the concentration noted (detection limit for the purposes of reporting). CONCLUSIONS Based on the review of the data obtained during the field and laboratory portions of our investigation, coupled with previous investigations of the subject property and vicinity, the following conclusions were derived. 1. Petroleum constituents related to the surface release of hydrocarbons were found to be present in the subsoils in the vicinity of former sample numbers 9 and 10. The vertical extent of these petroleum constituents appears to be limited to the upper 4-1/2 feet. It is anticipated that the iow concentrations currently in their present location pose no threat to groundwater resources. 2. Petroleum constituents related to the surface release of hydrocarbons were found to be present in the subsoils in the vicinity of the former sample number 14 location. The vert/cal extent of the contaminants appear to have been limited to the upper 12 feet of soil in that location. It is believed that the affected soils in that area have generally KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 16 been excavated. It is also anticipated that any hydrocarbons that still may exist in this vicinity pose no significant threat to groundwater resources. 3. We posses no evidence that groundwater contamination has/does exist beneath the subject property. 4. Initial observations and chemical testing indicate that the majority of a stockpile material has low concentrations of oil and grease. Composite samples obtained in the excavated soils have oil and grease concentrations ranging from 230 and 280 ppm. However, the lower portion of the excavated material appears to contain high concentrations of oil and grease. Vacuum (tank) bottoms have seeped from the lower portion of the stockpiled spoils during hot weather. A sample of the sludge (Sample #Al4) has been shown to contain 4700,000 ppm oil and grease and slightly elevated concentration of nickel (36 ppm). RECOMMENDATIONS Based on the conclusions of our investigation detailed in this report, the following recommendations were made. 1. The extent of the hydrocarbons in the vicinity of former Sample Nos. 9,10, and 14 appear to be sufficiently defined. Therefore, we recommend that further investigation in these areas not be required. 2. It is recommended that the majority of the excavated soil be disposed of at a municipal landfill. This disposal should only be accomplished following the obtaining of approval from the Kern County Environmental Health Department and the landfill owner/operator. However, the lower portion of the excavated soil pile is heavily contaminated and the sludge (tank bottoms) which seeped from the excavated soils should be disposed at a Class I or Class II landfill due to the high concentrations of oil and grease. It is proposed that identification of the excavation spoil pile material destined for Class III or for Class I/II disposal sites be accomplished by visual means. Soils contaminated by sludge (tank bottoms) are obvious due to the color and consistency of the sludge and can easily be identified. Uncontaminated soil would be bulk loaded and transported to a Class III site; contaminated soil would be transported to a Class I or II site. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 17 LLMITATIONS The findings of this report were based upon the results of field and laboratory investigations, review of past investigations of the subject property, and the interpolation of subsurface conditions associated with our samples. It is not warranted that the findings of our investigation are representative of the entire site, nor that those areas discussed are the only areas of environmental concern. Therefore, the data are accurate only to the degree implied by review of the data obtained and by professional interpretation. The sample locations were located in the field by review of available maps and by pacing or tape measurement from existing landmarks. Therefore, these locations should be considered accurate only to the degree of care of ensuring the testing accuracy and the representative nature of the soil samples obtained. The findings presented herewith are based on professional interpolation using state of the art methods and equipment and a degree of conservatism deemed proper as of this report date. It is not warranted that such data cannot be superseded by future geotechnical, environmental, or technological developments. If you have any questions or if we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. Respectfully submitted, KRAZAN & ASSOCIATES, INC. Division Mgr. [[-- [Expires Sep. 30,1991 Dean Alexander RAM/DA/lc 2c herewith lc American Capital Management Attn: Mr. Jim Taylor (herewith for distribution) lc Count, of Kern Department of Environmental Health Services Attn: Ms. Dolores Gough (herewith for distribution) KRAZAN & ASSOCIATES, INC. 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 ,, Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-1 Fresno, CA 93703 E89-039 Report Date 10/31/89 _~Sample Type Soil Date Sampled 10/10/89 Sample Description 1030 hrs. Date Received 10/11/89 SamDle Location 14 at 12' Date Analyses Completed 10/23/89 Oil& Grease Analyte Units Results DLR Oil and Grease ............. mg/kg ND 200 ND-None Detected 8DL-Betow Detection Limit DLR-Detection Limit For the Purposes of Reporting BSI< & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 48.5-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-1 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1030 hrs. Date Received 10/11/89 Sample Location 14 at 12' Date Analyses Completed 10/13/89 Soil Analyses for BTXE II Compound Results Detection (rog/kg) Limit (DAR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting BSI{ & Associates Chemical L~boratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-2 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1035 hrs. Date Received 10/11/89 Location 14 at 13' Date Analyses Completed 10/23/89 Oil&Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected gDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting QA/Qd~ ~Sdp~r-~2 sor BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-2 Fresno, CA 93703 E89-039 Report Date 10/31/89 ~Sample Type Soil Date Sampled 10/10/89 Sample Description 1035 hrs. Date Received 10/11/89 Location 14 at 13' Date Analyses Completed 10/13/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (D~) Benzene ................... ND 0.02 Toluene ................... ND . 0.0~2 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 · Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-3 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1040 hrs. Date Received 10/11/89 Location 14 at 14' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... rog/kg ND 200 ND-None Detected BDk-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting :~099 QA/~QC Sup???_V_~lVlSO~ (~.~ rvisor 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-3 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1040 hrs. Date Received 10/11/89 Location 14 at 14' Date Analyses Completed 10/13/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: 8TXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-DetectJon Limit For the Purposes of ~eportJng RC, 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 - Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-4 Fresno, CA 93703 E89-039 Report Date 10/31/89 -Sample Type Soil Date Sampled 10/10/89 Sample Description 1045 hrs. Date Received 10/11/89 Location 14 at 15' Date Analyses Completed 10/23/89 Analyte Units Results DLR and Grease ............ I rog/kg ND 200 Oil ND-None Detected BDL-Be[ow Detection Limit DLR-Detect(on L(mit For the Purposes of Report(ng QA/Q~ ~SuD v~r //C~an' / ~u~ervisor 1414 Stanislaus Street * Fresno, California 9370(, * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-4 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1045 hrs. Date Received 10/11/89 Location 14 at 15' Date Analyses Completed 10/13/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: 8TXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 48.5-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-5 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1048 hrs. Date Received 10/11/89 Location 14 at 16' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected 8DL-Betow Detection Limit DLR-Detection Limit For the Purposes of Reporting BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-5 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1048 hrs. Date Received 10/11/89 Location 14 at 16' Date Analyses Completed 10/13/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-BeLow Detection Limit DLR-Detection Limit For the Purposes of ~:eporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-6 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1050 hrs. Date Received 10/11/89 Location 14 at 17' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDL-Betow Detection L~mit DLR-Detection Limit For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-6 Fresno, CA 93703 E89-039 Report Date 10~31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1050 hrs. Date Received 10/11/89 Location 14 at 17' Date Analyses Completed 10/13/89 Soil Analyses for BTXE II Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Se[ow Detection Lfmit DlR-Detect~on lfm~t For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209} 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-7 Fresno, CA 93703 E89-039 Report Date 10/31/89 -Sample Type Soil Date Sampled 10/10/89 Sample Description 1055 hrs. Date Received 10/11/89 Location 14 at 18' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ............ mg/kg ND 200 ND-None Detected 8DL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting /~ x~jan~cs ~__~e~v~sor 1414 Stanislaus Street * Fresno, California 9370~ * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-7 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1055 hrs. Date Received 10/11/89 Location 14 at 18' Date Analyses Completed 10/13/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND O. 02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of I~eporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-8 Fresno, CA 93703 E89-039 Report Date 10/31/89 'Sample Type Soil Date Sampled 10/10/89 Sample Description 1058 hrs. Date Received 10/11/89 Location 14 at 19' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDt-BeLow Detection L~m~t DlR-Detect~on [~m~t For the Purposes ot: Reporting c' / ~ p e,.~rvv~o r /~rganics -~ QA/JQ C S 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-83'10 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-8 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1058 hrs. Date Received 10/11/89 Location 14 at 19' Date Analyses Completed 10/13/89 Soil Analyses for BTXE Jl Compound Results Detection (mg/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of I~eporting .,~7'3~9 QA/~' S~sorxh ics 1414 Stanislaus Street * Fresno, California 93706 · Telephone (209) 485-8310 · Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-9 Fresno, CA 93703 E89-039 Report Date 10/31/89 'Sample Type Soil Date Sampled 10/10/89 Sample Description 1100 hrs. Date Received 10/11/89 'Location 14 at 20' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200__ ND-No~e Detected BDL-Be[ow Detection Limit DLR-Detect~on Limit For the Purposes of ~eport~ng BSK Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 48.5-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-9 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1100 hrs. Date Received 10/11/89 Location 14 at 20' Date Analyses Completed 10/14/89 Soil Analyses for BTXE tl Compound Results Detection (rog/kg) Limit (DLR) Benzene ........ % .......... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting ~0'~ QA~ ,Q.~ Super s~~/ lso r 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-10 Fresno, CA 93703 E89-039 Report Date 10/31/89 'Sample Type Soil Date Sampled 10/10/89 Sample Description 1115 hrs. Date Received 10/11/89 Location 10 at 5' Date Analyses Completed 10/23/89 Oil &Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected 8Dl.-Be[ow Detection L~mit DI.R-Detection Limit For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816'E. Shields Lab No. Ch893304-10 Fresno, CA 93703 E89-039 Report Date 10/31/89 . Sample Type Soil Date Sampled 10/10/89 Sample Description 1115 hrs. Date Received 10/11/89 'Location 10 at 5' Date Analyses Completed 10/18/89 Soil Analyses for Total Lead Compound Results Detection (mg/kg) Limit (DAR) Total Lead ................. 18 1.0 Method: EPA- 7421 ND-None Detected BDL~Be{ow Detection Limit DLR-Detection Limit For the Purposes o1: Reporting QA/~'" S p~% Inorganics Supervisor RC.I 1414 Stanis]aus Street · Fresno, California 93706 · Telephone (209) 485-8310 · Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-11 Fresno, CA 93703 E89-039 Report Date 10/31/89 'Sample Type Soil Date Sampled 10/10/89 Sample Description 1125 hrs. Date Received 10/11/89 Location 10 at 6' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDL-Be[ow Detection L(mit DLR-Detection Lim(t For the Purposes of F:eporting 1414 Stanislaus Street * Fresno, California 93706 · Telephone (209) 48.5-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-11 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1125 hrs. Date Received 10/11/89 Location 10 at 6' Date Analyses Completed 10/18/89 Soil Analyses for Total Lead Compound Results Detection (mg/kg) Limit (DLR) Total Lead ................ 13 1.0 Method: EPA- 7421 ND-None Detected BDL-Be[ow Detection Limit DLR-Del:ection Limit For the Purposes of Reporting BSI< & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 · Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-12 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1128 hrs. Date Received 10/11/89 Location 10 at 7' Date Analyses Completed 10/23/89 Oil&Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-12 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1128 hrs. Date Received 10/11/89 Location 10 at 7' Date Analyses Completed 10/18/89 Soil Analyses for Total Lead Compound Results Detection (mg/kg) Limit (DLR) Total Lead ................ 21 1.0 Method: EPA- 7421 ND-None Detected BDL-Be[ow Detection t~m~t DLR-Detect~on L~m~t For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 48.5-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-13 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1130 hrs. Date Received 10/11/89 Location 10 at 8' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting QA/Q~ Sup~ '~r~a~lcs~'~pervisor ~ -- BSI( & Associates Chemical Laboratories i414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-13 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1130 hrs. Date Received 10/11/89 Location 10 at 8' Date Analyses Completed 10/18/89 Soil Analyses for Total Lead Compound Results Detection (rog/kg) Limit (DLR) Total Lead ................. 15 1.0 Method: EPA-7421 ND-None Detected 8DL-SeLow Detection limit DLR-Detection L~m~t For the Purposes of Reporting ! ~7~-~9 QA/~C Supe i~~ Inorganics Supervisor DATE /})'Id' PAGE OF '~ PARAMETERS OTHER ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 (209) 291-733'! ~'/ PRO,IECT OBSERVATIONS/ ~AMPLERS (SIGNATURE) COMMENTS Pii-nt-~ Name :. t~_..'~ SAMPLE NO DATE LOCATION RECEIVED BY DATE RELINQUISHED BY BY DATE TOTAL NUMBER OF CONTAINERS METHOD OF SHIPMENT I Si.n/,ture / I'%A ~ ISignalure Signature Signature _~/?_£ ... ~ .j._/_.. Prinl .d Namo ~., I l Pr'nl~d Name Pdnlod Name Prinled Name SPECIAL Company [ Il ~ ~ p y Company' Company ..............................................................................Siunalure l '-3 Signalure ........... TIME Signalure TIME S~u~ ~ · ',:~;;;~.~ ....................... l J-5~;aY .................. _ ......... '~¢~;~ .......... 5o-?~r 1414 Stanislaus Street * Fresno, California 93706 "Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-14 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1148 hrs. Date Received 10/11/89 ,, Spoils sludqe Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg 470000 200 ND-None Detected BDt-Be[ow Detection L~m~t DLR-Detection Limit For the Purposes of Reporting .-.: ~2029 QA/~C Supe~ BSI< & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-14 Fresno, CA 93703 E89-039 Report Date 10/31/89 'Sample Type Soil Date Sampled . 10/10/89 Sample Description 1148 hrs. Date Received 10/11/89 spoils sludqe Date Analyses Completed 10/14/89 Soil Analyses for BTXE Compound Results Detection (mg/kg) Limit (DLR) Benzene ................... ND O. 02 Toluene ................... 0.03 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... 0.04 0.02 Method: BTXE-FPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of ~eporting 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-14 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1148 hrs. Date Received 10/11/89 SDoils Sludqe Date Analyses Completed 10/23/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) .............. N___~___D ~ 2.5 Arsenic (As) ............... ND 5.0 Beryllium (Be) .............. ND 2.5 Cadmium (Cd) ............... ND 2.5 Chromium (Cr) .............. 16 2.5 Copper (Cu) ................ 20 2.5 Lead (Pb) .................. 5.0 5.0 Mercury (Hg) ............... 3.6 0.2 Nickel (NJ) ................ 36 5.0 Selenium (Se) .............. ND 5.0 Silver (Ag) ................ ND 2.5 Thallium (T1) .............. ND 5.0 Zinc (Zn) .................. 19 2.5 NDe-None Detected ~DL-Be[ow Detection Limi~ DLR-Detection Limit for the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 9370,fi * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-15 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1148 hrs. Date Received 10/11/89 So. spoils Pile ~1 Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg 280 200 ND-None Detected BDL-Betow Detect(on Limit DLR-Detection Limit For the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 · Telephone (209) 485-8310 · Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-15 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1148 hrs. Date Received 10/11/89 So. Spoils Pile ~1 Date Analyses Completed 10/14/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND O. 02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BIXE-FPA B020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting ,?0~,, QA// Sup~ visor 1414 Stanislaus Street ,, Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-16 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1155 hrs. Date Received 10/11/89 So. spoils pile ~2 at 4' Date Analyses Completed 10/23/89 Oil&Grease Analyte Units Results DLR Oil and Grease ........... mg/kg 230 200 ND-None Detected 8DL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting QA//Q'C Supe~ /organlcs~///z/*-~ ~ervisor BSI( & Associates Chemical Laboratories 1414 Stanislaus Street · Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-16 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1155 hrs. Date Received 10/11/89 So. ~spoils pile #2 at 4' Date Analyses Completed 10/14/89 Soil Analyses for BTXE II Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected 8DL-Betow Detection Limit DLR-Detection Limit For the Purposes of Reporting ,ZOOS9 QA/~ Super~__~ 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 - Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-17 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1200 hrs. Date Received 10/11/89 ~So. spoils pile ~3 at 5'10" Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDL-Be[ow Detection Lim(t DLR-Detection Limit For the Purposes of Reporting BS]( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-17 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1200 hrs. Date Received 10/11/89 So. spoils pile ~3 at 5'10" Date Analyses Completed 10/14/89 Soil Analyses for BTXE J[ Compound ~Results Detection (rog/kg) Limit (DLR) Benzene .................... N__D. 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ....... ND 0.02 Meth~: BTXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Re~rting BSI< & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch8933'04-18 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1202 hrs. Date Received 10/11/89 South side N. pile at 4' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg 280 200 ND-None Detected 8Dk-Be[ow Detection L~m~t DLR-Detection Limit For the Purposes of Reporting QA/Q'C Su i Rql( 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 48.5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-18 Fresno, CA 93703 E89-039 Report Date 10/31/89 ~Sample Type Soil Date Sampled 10/10/89 Sample Description 1202 hrs. Date Received 10/11/89 · South .side N. pile at 4' Date Analyses Completed 10/14/89 Soil Analyses for BTXE II Compound Results Detection (rog/kg) Limit (DAR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Be[ow Detection Limit DLR-Detect(on Limit For the Purposes of Reporting ·. F0;89 QA/.Q~ Supervi s/~~ 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-19 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1202 hrs. Date Received .10/11/89 South side N. pile at 6' Date Analyses Completed 10/23/89 Oil & Grease Analyte Units Results DLR Oil and Grease ........... mg/kg ND 200 ND-None Detected BDL-Be[ow Detection L~m~t DLR-Detect~on L~m~t For the Purposes of Reporting BSa( & Associates Chemical /.aboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 · Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch893304-19 Fresno, CA 93703 E89-039 Report Date 10/31/89 Sample Type Soil Date Sampled 10/10/89 Sample Description 1202 hrs. Date Received 10/11/89 South side N. pile at 6' Date Analyses Completed 10/14/89 Soil Analyses for BTXE Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene ISomers ...... ND 0.02 Method: BTXE-EPA 8020 ND-None Detected BDL-Betow Detection Limit DtR-Detection L~mit For the Purposes of Reporting QA/Q?: S upe rv~_~__~_ Org nlcs visor ,~ ,, ,, ,. ,,, ,~ ~, ,, ~ .,, ,, ,:,^ ',' ,: ~ C~ ~ai~ of L;uszoay Record 6,,,,,,,c~, ..... , ...... ~ ...... DATE PARAMETERS OTHER ADDRESSKRAZAN & ASSOCIATES, INC. 38~ NORTH WINERY FRESNO, CALIFORNIA 93726 (209) 291-7337 .~.~ PROJECT ~ ~> '/ '- E__..~ ~ / OBSERVATIONS/ ~-M fiL-~ RS '~'iG ~ U fl E)'~ '-'}~ ~P ............. ~':7 ~--- COMMENIS Printed Name SAMPLE NO DATE LOCATION ~. !~i';;'; ~ -h'E~i-~)~Ct-~6'B'¥~'. RECEIVED BY DATE RELINQUISHED BY DATE RECEIVED BY DATE TOTAL NUMBER ~/~/~/~/~., OF CONTAINERS _ MEYHOD OF SHIPMENT Siena)ute Signalure Signalure Signalure Prinled Name ~inled'N~&e" Prikle~ Name -pr~'n~ Name SPECIAL SHIPMENT/HANDLING Company -~a%'~ -~o~y Company RECEIVED BY DATE RELINQUISHED BY DAlE RECEIVED BY bora,o~) RELINQUISHED BY Sisnature Signature Signature TIME TIME TIME Prinled-~me Name Prinled Name Pr~d Na~e ~t~rmy C~ml);iny ..... Company" company ..... Proiect Proposed-'~ffice Club/Costco Expansion --' Boring No. ~A I E89-039 Arrow & Gilmore Aves., Bakersfield, CA~ I DATEDRILLED: 6/21/89 ~PEOFBORING: 4 1/4" I.D. Hollow Stem HOLEELEv:Approx. 405 feet above G~OUNDWATE~LEVEL:Approx. 385 feet above LOGGEDBY:. RH mean sea level mean sea level ~ o ~ SOIL DESCRIPTION - NO XX 0 Fine to medium SAND (SW); brown, damp, drills easy Nicaceous 5_ NO XX 0 10- NO XX 0 Slightly moist at 10 feet 15- NO XX 0 Moist at 15 feet 20--~0 XX 0 SIL.T (ML.); brown, moist, drills easy with iron stains - Saturated below 22 feet Fine SAND (SP); brown, saturated, micaceous 25-- NO XX 0 Project Propose'E'0ffice Blub/Costco Expansion w Boring No. E89-039 Arrow & Gilmore Aves., Bakersfield, CA DATE DRILLED: 6/21/89 TYPE OF BORING: 4 1/4" I.D. Hollow Stem HOLE ELEV: Approx. 405 feet above GROUNDWATFRLEVEL: Approx. 385 feet above LOGGED BY:. RH mean sea level mean sea level ~ ~ '~ E ~. SOIL DESCRIPTION 30-- _ BOTTOM OF BORING COUNTY OF KERNO Environmental Health Services Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 (805) ~61.~636 (805) 861.3429 Fax N~m~her~ ~\ May 23, 1989 Krazan & Associates, Inc. Main Office: Fresno/Clovis 3860 N. Winery Fresno, CA 93726 Dear Sir/Madam: Recently, a work plan and site characterization was submitted to the Kern County Environmental Health Department for the proposed Office Club-Costco Expansion at Arrow Street and Gilmore Avenue, Bakersfield, California.. For our Depaa intent to review this work plan, a fee of $42.00 per hour will be charged. Please contact me at (805) 861-3636 if you sffll want us to review the plan. Sincerely, / Lydia V. yon Sydow Hazardous Materials Inspector Hazardous Materials Management Program LV:dr lydia\krazan.ltr 5/23/38 COUNTY OF KERN E~vlronmeatal Health Services Departmeat BLli~.n flel& CA (80S) 861.2636 (S0S} 861-3429 Fax Number June 1989 grazan and A~sociates, Inc. 4815 E. Shields Avenue Fresno, CA 93703 Attm Robert Martin Subject: Site Characterization Workplar~ Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, CA Dear Mr. Martin: In confirma~on of our telephone conversation regarding r. his Deparmuenfs review of the site characterization workplan and subsequent addendum, approval is granted subject to r. he revision of uhe sampling location of r. he additional soil sample, the sample shall be retrieved on the northwestern part of the site (by BH-4) instead of by BH-1 and BH-2. Since you have concurred with this revision, subnt/rtal of a revved wor~lan incorpora~g Lkis change is not required. Depending on the results of r. hta investigation, additional sampling may be required to determine :he extent o£ contamination. If you have any questions regarding this matter, please call me at (805) 861-3636. Sincerely, " Dolores Gough Hazardous Materials Specialist II }[azardous Materials Management Program DG:cd cc.. Lance . Kashian doloreskkrazan, let 6-15-16 Arnoui~t: Due 335.00 LEVEL I HAZARDOUS S13'BSTANCE SITE ASSESSMENT PROPOSED OFFICE CLUB - COSTCO EXPA_NSION ARROW STREET .~d~rD GILMORE AVENrUE BAKERSFIELD, CALIFORNIA July 27, 1989 Project No. E89-039 Prepared for: Lance-Kashian & Co. Attn: Ed Kashian 1100 West Shaw Avenue Frenso, California 93711 KRAZAN ASSOCIATES , IN C. Construction Testing and Inspection Environmental Engineering Laboratory Soils Testing Monitoring Wells July 26, 1989 Project No. E89-039 SITE CHARACTERIZATION PROPOSED OFFICE CLUB - COSTCO EXPANSION .ARROW STREET ,MND GILMORE AVENUE BAKERSFIELD, CALIFORNIA SITE DESCRIPTION & LOCATION The subject site is a rectangular shape property encompassing approximately 5 acres south of the existing Costco Home Club development. It is currently a portion of the Don Keith Trucking Company yard. The property is located on the southwest corner of Arrow Street and Gilmore Avenue in a commercial and light industrial area adjacent: to Highway 99 in Bakersfield, California (See Vicinity Map). According to the U.S Geological Survey 7.5 minute Oildale, California topographic quadrangle map, the property occupies a portion of the northeast 1/4 of the southeast 1/4 of Section 23, T29S, R27E, Mount Diablo Baseline and Meridian. Historical photographs dated 1937, 1956, 1975 all show the subject site to be essentially vacant. The 1985 aerial photographs shows the site to be covered by a layer of asphalt. Over the last sixty years, the site appears to be undeveloped except for the asphalt coverings and the site has been primarily unused except for recent times when Don Keith Trucking Co. has used it as parking area. SITE HISTORY A March 22, 1989 Level I Hazardous Substance Site Assessment (HSSA) Report ;cas completed for the proposed Office Club - Costco Expansion. The site is located at the southwest corner of Arrow Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 ° (209) 291-7337 Bakersfield (805) 393-2343 ~ California (800) 233-5050 [] FAX (209) 291-5010 Project No. E89-039 Page No. 2 Street and Gilmore Avenue in Bakersfield, California. The Level 1 HSSA was requested to identify any obvious toxic or hazardous materials at or near the site. During this investigation, soil samples were obtained from beneath areas that exhibited signs of minor surface contamination. An additional sample was obtained in an area that had been covered by firewood and where a substance known as "vacuum bottoms" was reported to exist. The results of these sampling are presented in the following table. Based on these results it was determined that the surface contamination noted in a few areas on site had not migrated very far vertically into the soil (one-half to two feet). It was also concluded that there had been some leaching of hydrocarbons into the soil beneath the vacuum bottoms and that further testing would be necessary to determine the extent of the vacuum bottoms and any materials that may have leached from it. At the time of the Level I HSSA, pi]es of firewood belonging to Swen's Firewood occupied the northeast portion of the subject site. The site surface was covered by a layer of cracked asphalt and a moderate weed growth was growing up from the cracks through the asphalt. Out-of-service tanks trailers owned by Don Keith Trucking occupied the southwest portion of the subject site. Several areas of surface discoloration were noted including a ten square foot area located in the southeast portion of the subject property. The discoloration appeared to be motor oil or waste oil and was confined to the asphalt and upper fewer inches of soil. During the Level I HSSA, soil samples were obtained for chemical analysis. The results of those analyses are detailed in Table I. For the locations of the samples obtained, please refer to Figure 2. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 3 TABLE I Concentrations of Petroleum Constituents in Soils Level I HSSA Report March 22, 1989 Proposed Office Club/Costco Expansion Bakersfield, California (Concentrations in parts per million) Test Method and Constituents Sample #1 Sample #2 Sample #4 Sample #6 Sample #7 Sample #8 @ 1.5' @ 2.5' @ 2.5' Gl.0' @1.5' @ 3.5' EPA 9071: Oil & Grease 65 · 40 1,015 · · EPA 7420: Total Lead 2.1 2.0 2.0 · · · DOHS LUFT: Total Petroleum Hydrocarbons · · ND ND ND ND (Diesel) EPA 8020: Benzene · · · · N D N D Toluene · · · · ND ND Ethylbenzene · · · · ND ND Total Xylenes · · · · ND ND Isopropylbenzene · · · · N D N D EPA 8015M: Total Petroleum · · · · ND ND Hydrocarbons · · · · ND ND (Gas) Note: Sample Nos. 3 and 5 were not analyzed. ND = None detected · = Not tested for this constituent KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 4 According to Don Keith of the Don Keith Trucking Company, vacuum bottoms are located just beneath the surface in the area underneath the firewood. The presence of the firewood obscured surficial evidence of the vacuum bottoms. On April 6, 1989, the Kern County Health Department issued a letter indicating that further sampling and analysis would be necessary before a site clearance could be given. A work plan dated May 15, 1989 was written and submitted to the client and the Kern County Environmental Health Department for approval. On June 20, 1989, the field portion of the investigation was commenced following approval by both parties. The results of that investigation are detailed in this report as follows. GEOLOGIC AND HYDROLOGIC SETTINGS Geology Bakersfield is located in the southern portion of the San Joaquin Valley of California. The San Joaquin Valley is a structural through bounded on the west by the Coast Ranges and on the east by the Sierra Nevada. Subsurface materials in the southern San Joaquin Valley are composed primarily of alluvium from Sierra Nevada source rocks deposited by the Kern River and its tributaries. These soils are primarily mixtures of silts and sands. The U.S. Geological Survey 7.5 minute Oildale, Calif. topographic quadrangle map shows the elevation of the project site to be approximately 405 feet above .mean sea level. Hydrology Bakersfield is in the San Joaquin Basin Hydrology Study Area which is primarily an arid to semi-arid environment. Within the Study Area, thirty-nine groundwater basins and areas of potential groundwater storage has been identified. More specifically, Bakersfield is within the 70 square mile Kern County Basin. Below the project site, there is believed to be two main aquifers separated by an aquitard of regional extent. This aquitard is locally referred to as the "300 foot clay'. The aquifer above the clay layers is referred to as unconfined and that below the clay layers is called confined. The upper unconfined aquifer is generally not used for domestic water supply, but is pumped extensively for agricultural use. The lower confined aquifer is used for both domestic and agricultural purposes. According to the Kern Water Agency reports on water conditions including District #4 for years 1982 to 1987, the depth to the groundwater in the vicinity of the project site is between 10 and 15 feet below grade. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 5 PURPOSE OF THE INVESTIGATION The purpose of the site investigation is to determine the lateral and vertical extent of the tank bottoms in the subsoils. SCOPE OF THE INVESTIGATION The scope of the investigation was limited to samples from the excavation located on-site and the advancement and installation of one temporary monitoring well was accomplished to obtain a groundwater sample for chemical analysis. Soil and water samples were analyzed for oil and grease, and heavy metals. METHODOLOGY In order to accomplish the goals established in the purpose and scope of the investigation, the following methods were employed: 1. All necessary permits were obtained prior to the commencement of the investigation at the project site. Copies of this work plan were released to the Kern County Environmental Health Department to obtain approval to begin our field investigation. 2. An additional literature survey of published geologic and groundwater data in the vicinity of the project site was conducted in an attempt to fully describe the conditions present. 3. Prior to arrival on-site, the former location of the tank bottoms were excavated by another party. Upon arrival on-site, our work plan was modified by not advancing the two soil borings in lieu of sidewall and floor samples being obtained form the excavation. 4. A soil boring was advanced approximately 20 feet hydraulically downgradient of the tank bottoms. The purpose of this soil boring was to temporarily install a two-inch diameter PVC monitoring well to ,obtain a representative groundwater sample. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 6 5. Soil samples were taken for logging purposes at depths of one, five, ten, fifteen, twenty, and twenty-five feet below grade. Soil sampling was conducted by means of pushing stainless steel tubes at discrete intervals (ASTM D-1587-86, "Thin-Walled Tube Sampling of Soils"). Selected soil samples were also submitted for chemical analysis. 6. Tubes were covered at each end with aluminum foil and a tight fitting plastic cap. Each sample was then labeled with the project number, sampler's initials, boring number, time and depth at which the sample was taken. Samples were then placed in a cooler chest with synthetic ice to limit the volatilization of any contaminants that may be present. 7. The temporary well consisted of a 2-inch diameter Schedule 40 PVC screened section with 0.020" slotted openings. Above the screened section existed a 2-inch diameter schedule 40 PVC well casing. The filter medium for the saturated zone consisted of a #16 sand. The filter medium extended approximately one foot above the slotted interval. Above the filter medium, a seal of a minimum two foot thickness was established using 3/8 -inch diameter bentonite pellets. 8. Following installation, the well was sounded, then developed by bailing approximately five well volumes. Waters generated from the development of the well was barreled pending proper disposal by the property owner. Following well development, each well was allowed to stabilize, and then re-sounded. 9. After well stabilization, the well was again re-sounded; then sampled for chemical analysis by means of a Teflon bailer. Water from the bailer was transferred to volatile organic analysis (VOA) vials. The VOA vials were laboratory clean with a Teflon lined septa to ensure a ti~;ht fit. Each VOA vial was then placed in a cooler chest with synthetic ice. 10. The groundwater monitoring well was then drilled out and the borehole was backfilled with a sand/cement slurry with 3% to 5% bentonite added to reduce shrinkage. All excess drilling returns were stored on the property on top of and covered by visquene pending the proper ciisposal by the property owner. KRAZAN &' ASSOCIATES, INC. Project No. E89-039 Page No. 7 11. All samples were collected~, maintained, and transported under chain of custody protocol to a state approved laboratory for chemical analysis. Selected soil samples were analyzed for the presence and concentrations of volatile organics, oil and grease, and priority pollutant metals. The water sample was analyzed for total petroleum hydrocarbons and priority pollutant metals. 12. All drilling and sampling equipment was steam-cleaned before arriving on site, before leaving the site, and/or as necessary to minimize the potential for cross- contamination. 13. All field work was conducted under standards set forth by industry and deemed acceptable by various regulato .ry agencies. Hard hats, protective eyewear, hearing protection, protective clothing, and steel-toe boots were to be worn by all field personnel when deemed appropriate by the field geologist present. For further health and safety related information, please refer to our approved Health & Safety Plan of May 15, 1989. FINDINGS OF THIS INVESTIGATION During this investigation, soil samples were obtained from an existing excavation at the project site. Additionally, a soil boring was advanced for the purpose of installing a temporary monitoring well. Soil cuttings were logged and samples were obtained to characterize the physical conditions beneath the site. Additionally, selected soil samples were analyzed for the presence and concentration of petroleum constituents to define the distribution of those contaminants present. Soil Profile The unconsolidated material comprising the soil profile generally consists of silts and well graded to silty sands. More specifically, the soil profile can be summarized as being a fine to medium sand from grade to a depth of approximately 19 feet. From 19 feet below grade to approximately 24 feet depth, an iron stained silt was present. From 24 f¢'et to the bottom of our boring, a micaceous fine sand dominated the profile. For specific information regarding our soil borings, please refer to the boring logs in Appendix B. Results of Chemical Analysis During our field investigation, soil samples were obtained from the excavation for chemical analysis. The results of these analyses are summ~rized in Table II. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 8 TABLE II Concentrations of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample ID Location St) A~s B.~e Cd Ct' Cu Pb Hg N__ii S__Re ~ TI Z.__~n 1 Excavation · · · · · · · · · · · · · 2 Excavation · · · · · · · · · · · · · 3 Excavation ND 5.5 ND ND 7.5 28 17 ND 4.6 ND ND ND 36 4 Excavation · · · · · · · · · · · · · 5 Excavation · · · · · · · · · · · · · 6 Excavation 7 Excavation ND 10 ND ND 11 39 26 ND 6.8 ND ND ND 47 8 Excavation · · · · · · · · · · · · · 9 Excavation 10 Excavation · · · · · · · · · . · · · · 11 Excavation ND 13 ND ND 5.4, 24 13 ND 3.1 ND ND ND 29 12 Excavation · · 13 Excavation · · · , · · , , · · · · · 14 Excavation ND 4.8 ND 0.8 6.3 25 16 ND 3.5 ND ND ND 33 15 Excavation * · · · · · · · · · · · · 16 Excavation ND 7.5 ND 0.6 6.9' 25 15 BDL 4.0 ND ND ND 30 17 Excavation ND 13 ND ND 15 44 29 ND 8.5 ND ND ND 74 18 Excavation · · · · · · · · · · · · · Detection Limit N/A 0.5 1.0 0.5 0.5 0.5 0.5 1.0 0.2 1.0 1.0 0.5 1.0 0.5 Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver TI = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. BDL = Concentration noted at below the detection limit noted on the attached analytical reports. · = Sample not analyzed KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 9 During our field investigation, composites were obtained of the spoils generated during the excavation which took place prior to our field investigation. The reason for obtaining these samples was to facilitate the disposal of these soils. For the results of the analysis performed, please refer to Tables III and IV. TABLE III Concentrations of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample ID Location Sb A.~s Be Cci C.~.r Cu Pb H__g N.__ii S_ge A_.g TI Zn SC-1 Composite of Soils ND 5.3 ND 0.7 6.8 26 20 ND 3.9 ND ND ND 39 SC-2 Composite of Soils ND 3.8 ND 0.5 4.4 19 10 ND 2.2 ND ND ND 24 SC-3 Composite of Soils ND 3.3 ND ND 4.0 16 8.8 ND 1.9 ND ND ND 18 Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr = Chromium Cu = Copper Fb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver T1 = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical reports. BDL = Concentration noted at below the detection limit noted on the attached analytical reports. · = Sample not analyzed KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 10 TABLE IV Concentrations of Petroleum Constituents in Soil Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in part per million) Ethyl- Sample I.D. Benzene Toluene benzene Xylenes TVH Oil & Grease Excavation Sample #3 · · · · · < 50 Excavation Sample #7 · · · · · < 50 'Excavation Sample #11 · · · · · < 50 Excavation Sample #14 0.02 0.02 ND ND ND 550 Excavation Sample #16 ND ND ND ND ND < 50 Excavation Sample #17 · · · · · < 50 Spoils Composite #1 (SC-l) 0.03 0.04 ND ND ND 510 Spoils Composite #2 (SC-2) ND 0.27 ND ND ND 61 Spoils Composite #3 (SC-3) ND ND ND ND ND < 50 ND = None detected at the detection limits noted on the attached analytical reports. TVH = Total Volatile Hydrocarbons by EPA 8015M · = Sample not analyzed During our field investigation, a single boring was advanced to a depth of 30 feet below grade. The purpose of the boring was for use in the installation of a temporary 2-inch diameter groundwater monitoring well. While advancing the boring, soil samples were obtained for logging purposes only. Following well installation, a groundwater sample was obtained for chemical analysis. The results of that analysis are detailed in Table V as follows. KRAZAN & ASS,OCIATES, INC. Project No. E89-039 Page No. 11 TABLE V Concentrations of Petroleum Constituents in Water Site Characterization Investigation Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample Location Sb As Be Cd C_z.r Cu Pb Hg N__ii S__~.e ~ TI Z_.~n MWA ND ND ND ND ND ND ND ND ND ND ND ND ND Sb = Antimony As = Arsenic Be = Beryllium Cd = Cadmium Cr = Chromium Cu = Copper Pb = Lead Hg = Mercury Ni = Nickel Se = Selenium Ag = Silver T1 = Thallium Zn = Zinc ND = None detected at the detection limit noted on the attached analytical report. During our field investigation, an additional soil sample was obtained from a depth of 2.5-3 feet below grade in the former #1 and #2 soil sample location. This sample was obtained in order to further define the vertical extent of oil and grease concentrations in this area. The results of that analysis is detailed in Table VI as follows. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 12 TABLE VI Concentrations of Pe. troleum Constituents in Soil Site Characterization Investigation Proposed Office ,Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California (All concentrations are in parts per million) Sample I.D. Depth Total Lead Oil & Grease #9 4 feet 16 180 #10 4.5 feet 16 220 BG (background) 4 feet 6.1 · DISCUSSION OF FINDINGS This investigation of the subject property has assessed the nature and approximate extent of petroleum constituents in the subsoils in the area of the former surface release of tank bottoms. This 35 foot by 60 foot area had been excavated to a depth of 10 feet prior to our arrival on-site. When it was discovered that the excavation had been accomplished, our work plan was modified in the field to allow for sampling of the excavation bottom and sidewalls in lieu of the two soil borings proposed. Sample numbers 3, 7, and 11 were obtained from the west, north, and east walls of the excavation, respectively. No odors or PID reading were evident in any of that samples obtained. The "inorganic persistent and bioaccumulative toxic substances" (priority pollutant metals) detected in these samples were present in concentrations less, than the total threshold limit concentrations (TI'LC) found in Title 22 California Administrative Code §66699. Sample numbers 14, 16, and 17 were obtained from the excavation floor. No odors or PID readings were evident in any of the samples obtained. These samples also showed priority pollutant metal TTLC's below those stated in Title 22 §66699. A concentration of 550 ppm oil and grease was detec'ted in sample #14. A water sample was obtained from the temporary groundwater monitoring well installed on- site. No detectable concentrations of the priority pollutant metals were present in the sample obtained. Two soil samples were obtained from a greater depth in the former sample #1/#2 soil sampling location. The Sample (#9) obtained from a depth of 4 feet below grade contained an oil and grease concentration of 1S0 ppm. This sample also contained a total lead concentration of 16 ppm. This concentration is 9 ppm above the suspected background lead concentration for this soil. Sample No. 10 was KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 13 obtained from a depth of 4.5 feet below grade. The oil and grease concentration present in that sample increased to a concentration of 220 ppm. However, the total lead concentration in that sample was unchanged from Sample No. 9. CONCLUSIONS Based upon review of the data obtained from our field and laboratory investigation, coupled with published information regarding previous investigations, and geologic/hydrologic conditions, the following conclusions have been derived. 1. Petroleum constituents related to the surface release of petroleum products were found in the subsoils beneath the site. 2. The contaminants present appear to consist of heavy end petroleum hydrocarbons, and minor concentrations of some priority pollutants metals. 3. Petroleum constituents were shown by this investigation to exist in the subsoils at the bottom of the excavation at a depth of approximately 10 feet below grade. An area of approximately 2100 square feet appears to have contained contaminated soils. Except for near Sample Number 14, these soils appear to have been removed. 4. Petroleum constituents in the subsoils appear to increase in concentration with depth near the location of Soil Sample Numbers 9 and 10. 5. Groundwater beneath the project site exists at a depth of approximately 22 feet below grade. 6. Based on the limited scope of our investigation, we possess no evidence that groundwater resources beneath the site have been impacted by petroleum constituents. LLMITATIONS The findings of this report were based upon the results of our field and laboratory investigations, coupled with the interpretation of subsurface conditions associated with our past and current soil borings. Also incorporated was the interpretation of previous investigations in the vicinity. Therefore, the data KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 14 are accurate only to the degree implied by review of the data obtained and by professional interpretation. The exploratory soil borings were located in the field by review of available maps and by pacing or tape measurement from existing landmarks. Therefore, the soil borings locations should be considered accurate only to the degree implied by the methods used to locate them. Chemical testing was done by laboratories approved by the State of California Department of Health Services. The results of the chemical testing area accurate only to the degree of care of ensuring the testing accuracy and the representative nature of the soil samples obtained. The findings presented herewith are based on professional interpretation using state of the art methods and equipment and a degree of conservatism deemed proper as of this report date. It is not warranted that such data cannot be superseded by future geotechnical, environmental, or technological developments. If there are any questions or if we can be of any further assistance, please do not hesitate to contact our office. Respectfully submitted,  x~. KRAZAN & ASSOCIATES, IN,C. [[~[~ir~;~..3o,,c~@,)~_]] En};J~'onmental Dix ision Mgr. ~x.~\~ ~ 2 tnec~l~i:~ ~rgi nee r ~ RGE #002051/RCE #34274 RAM/DA/lc 4c herewith 2c Kern County Environmental Health Department KRAZAN & ASSOCIATES, INC. ~_~2~ L_ ~ I~'*:l~--,~ ID.i`: ~-c~ ~ KRAZAN & ASSOCIATES Approved ..~. C ~.~.--~-~1~ Drawn by: ~ ~ ~-[~. I~oj~t Ho. Dra~ng No~ Merced Fresno Vi~lia Bakersfield Krazan & Associates 4816 E. Shields Lab No. Ch891966-1 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 Sample Description 1330 hrs. Date Received 6/23/89 EXC (3) Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) .............. ND 0.5 Arsenic (As) ............... 5.5 1.0 Beryllium (Be) ............. ND 0.5 Cadmium (Cd) ............... _ND 0.5 Chromium (Cr) .............. 7.5 0.5 Copper (Cu) ................ 28 0.5 Lead (Pb) .................. 17 1.0 Mercury (Hg) ............... ND 0.2 Nickel (Ni) ................ 4.6 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................ ND 0.5 Thallium (T1) .............. ND 1.0 Zinc (Zn) .................. 36 0.5 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit for the Purposes of Reporting QA/.QC Sup,e~rvisor Inorganics Supervisor 70~89 BSi< & Associme~ Chemical L~hormorie~ 1414 Stanislaus Street - Fresno, California 9370~ - Telei~t~om:, ~2uv~ 4~"~5-;5:q~., Fax ~.J'O~JI 4tb5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-2 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 Sample Description 1340 hrs. Date Received 6/23/89 EXC (7) Date of Analyses 6/30/89 EPA Priority ]Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) ............... ND 0.5 Arsenic (As) ................ 10 1.0 Beryllium (Be) .............. ND 0.5 Cadmium (Cd) ................ ND 0.5 Chromium (Cr) ................ 11 0.5 Copper (Cu) ................. 39 0.5 Lead (Pb) ................... 26 1.0 Mercury (Hg) ................ ND 0.2 Nickel (Ni) ................. 6.8 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................. ND 0.5 Thallium (T1) ............... ND 1.0 Zinc (Zn) ................... 47 0.5 ND-None Detected BDL-Be[ow Detection Limit DLRIDetection Limit for the Purposes of Reporting /-'./z,. / t," '"~ .,_------- ' QA/.QC Super~fsor Inorganics Supervisor 70489 BSI(& Associate~ Chemical Laboratories 14;-; )lani~iau.~ )[rt,~i i-r't_~no, ciat~lurnM bicz,_,u iul~pilone 1209] 485-~31u Fax (209) 4~5-F4_'7 Krazan & Associates 4816 E. Shields Lab No. Ch891966-3 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 Sample Description 1350 hrs. Date Received 6/23/89 EXC (11) Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (ms/kg) Antimony (Sb) .............. ND 0.5 Arsenic (As) ............... 13 1.0 Beryllium (Be) .............. ND 0.5 Cadmium (Cd) ................ ND 0.5 Chromium (Cr) ............... 5.4 0.5 Copper (Cu) ................. 24 0o5 Lead (Pb) ................... 13 1.0 Mercury (Hg) ................ ND 0.2 Nickel (Ni) ................. 3.1 1.0 Selenium (Se) ............... ND 1.0 Silver (Ag) ................ ND 0.5 Thallium (T1) .............. ND 1.0 Zinc (Zn) .................. 29 0.5 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection L~mit for the Purpeses of Reporting QA/QC Superviso:r Inorganics Supervisor 1414 Stanistaus S[rt_,~ F~'e~,r~o, California 93706 - Telephor~e 12091 485-83i() Fax i209) 4~5-7427 Krazan & Associates Repcrt Date 7/6/S9 4816 E. Shields Fresno, CA 93703 Date Sampled 6/20/89 Date Received 6/23/89 Sample Type Soil Date of Analyses 6/30/89 Lab Number Sample Description 1966-1 EXC (3) 1330 hrs. 1966-2 EXC (7) 1340 hrs. 1966-3 EXC (11) 1350 hrs. Results of General Chemical Analyses l] Compound Units Lab. No. Lab.No. Lab. No. 1966-1 1966-2 1966-3 Oil and Grease ........... mg/kg <50 <50 <50 QA/,QC Supe.rq~~ Inorganics Supervisor ._70489 14i4 >i,mtslaus >i~..:..-; rw,t~.~, t.,~i~lt~:~,, :~:;7(.,b ];-Ja.l,~e ~209~ 485-8310 Fax (209i 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-4 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 Sample Description 1355 hrs. Date Received 6/23/89 EXC (14) Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (mg/kg) Antimony (Sb) ............... ND 0.5 Arsenic (As) ................ 4.8 1.0 Beryllium (Be) .............. ND 0.5 Cadmium (Cd) ................ 0.8 0.5 Chromium (Ct) ............... 6.3 0.5 Copper (Cu) ................. 25 0.5 Lead (Pb) .................. 16 1.0 Mercury (Hg) ................ ND 0.2 Nickel (NJ) ................. 3.5 1.0 Selenium (Se) ............... ND 1.0 Silver (Ag) ................. ND 0.5 Thallium (T1) ............... ND 1.0 Zinc (Zn) ................... 33 0.5 ND-None Detected BDL-Betow Detection Limit DLR-Detection Limit for the Purposes of Reporting / .~?~ QA/'QC Supervisor Inorganics Supervisor 70489 BS[< & Associates Chemical Laboratories 1414 Stanislau~, Street ~, Fresno, California 93706 Teiephone t2091 485-8310 Fax ~209, 4~'~5-,-427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-4 Fresno, CA 93703 Report Date 7/6/89 -Sample Type Soil Date Sampled 6/20/89 Sample Description 1355 hrs. Date Received 6/23/89 EXC (14) Date of Analyses 6/29/89 Soil Analyses for BTXE and TVH Compound Results Detection (mg/kg) Limit (DAR) Benzene ................... 0.02 0.02 Toluene .................... 0.02 0.02 Ethylbenzene ............... ND 0.02 Total Xylene Isomers ....... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting /. - / - QA/QC Supervisor ' visor }70489 laboratories 14i4 ~i ...... ;aus bu,.ct Fre.',no, Calilorni,~ .~.,/~6 Telephone ,209) 4~5-631U r-.~,, ~Z()'-Jt 4~5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-5 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 Sample Description 1355 hrs. Date Received 6/23/89 EXC (16) Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) .............. ND 0.5 Arsenic (As) ............... 7.5 1.0 Beryllium (Be) ............. ND 0.5 Cadmium (Cd) ............... 0.6 0.5 Chromium (Cr) .............. 6.9 0.5 Copper (Cu) ................. 25 0.5 Lead (Pb) .................. 15 1.0 Mercury (Hg) ............... BDL 0.2 Nickel (Ni) ................ 4.0 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................ ND 0.5 Thallium (T1) .............. ND 1.0 Zinc (Zn) .................. 30 0.5 ND-~one Detected BDL-Betow Detection Limit DLR-Detection Limit for the Purposes of Reporting ././.,,~/'L- '/d- ..~- . ,- . .. .... QA/QC/Super¥is'br Inorganics Supervisor 70489 / 'x.....~ 1414 Stanislaus Stre(:~ Fre-.no, Caih'~.,:.~..~ :,37('¢, Telephone ~20'Jt 485-8310 - Fax ~2091 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-5 Fresno, CA 93703 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 . Sample Description 1355 hrs. Date Received 6/23/89 EXC (16) Date of Analyses 6/29/89 Soil Analyses :for BTXE and TVH II Compound Results Detection (mg/kg) Limit (DLR) Benzene .................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting QA~Q~ 'Supervisor~~' ~rganic&gupervisor / ;70489 ,2_./ i4i-; ~,mi>iau.,, >~ru~,i ~ ~,...,~,,. L.,',i~I~)rnm '_~.)Yub i~,l(.l;nol~, i209) 485-8310 - Fax t209) 485-;'4~7 ~razan & Associates 4816 E. Shields Lab No. Ch891966-6 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/20/89 Sample Description 1400 hrs. Date Received 6/23/89 EXC (17) Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) .............. ND 0.5 Arsenic (As) ............... 13 1.0 Beryllium (Be) ............. ND 0.5 Cadmium (Cd) ............... ND 0.5 Chromium (Cr) .............. 15 0.5 Copper (Cu) ................ 44 0.5 Lead (Pb) .................. 29 1.0 Mercury (Hg) ............... ND 0.2 Nickel (NJ) ................ 8.5 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................ ND 0.5 Thallium iT1) .............. ND 1.0 Zinc (Zn) .................. 74 0.5 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit for the Purposes of Reporting QA/QC_. Su~e~visor~ ~ Inorganics Supervisor BS[< & Associates Chemical Laboratories 1414 Stani>l:u.~. ~:?.:t.~ Fresno. Caiii~;~ia 93706 , 7~.;,d~i~<me ~20~) 4~35-~;~]0 Fax (209~ 485-7427 Krazan & Associates Report Date 7/6/89 4816 E. Shields Fresno, CA 93703 Date Sampled 6/20/89 Date Received 6/23/89 Sample Type Soil Date of Analyses 6/30/89 Lab Number Sample Description 1966-4 EXC (14) 1355 hrs. 1966-5 EXC (16) 1355 hrs. 1966-6 EXC (17) 1400 hrs. Results of General. Chemical Analyses Compound Units Lab. No. Lab. No. Lab. No. 1966-4 1966-5 1966-6 Oil and Grease ........... mg/kg 550 <50 <50 i4i4 .~lanisi,~u> >i~u,_.i "=. <x~, Calilorma Y370(:, leiephone t2U9i 485-8310 F,lx t'-us,, 485-7427 4816 E. Shields Lab No. Ch891966-7 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/21/89 Sample Description 1615 hrs. Date Received 6/23/89 SC-1 Da'te of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) ............... ND 0.5 Arsenic (As) ................ 5.3 1.0 Beryllium (Be) .............. ND 0.5 Cadmium (Cd) ............... 0.7 0.5 Chromium (Cr) ............... 6.8 0.5 Copper (Cu) ................. 26 0.5 Lead (Pb) ................... 20__ 1..0 Mercury (Hg) ............... ND 0.2 Nickel (NJ) ................ 3.9 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................ ND 0.5 Thallium (T1) .............. ND 1.0 Zinc (Zn) .................. 39 0.5 l~D-~lone Detected BDL-Be[ow Detection Limit DLR-Detection Limit for '~he Purposes o~ Reportin9 / x / QA/QC Superviso~ Inorganics Supervisor 70489 ,..L..../ 1414 Stanislaus Street * Fresno, California 937U~ Telephonic ~ '209~ 4,%-8310 Fax ~209~ 4~:;5-7427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-7 Fresno, CA 93703 Report Date 7/6/89 Sample Type Soil Date Sampled 6/21/89 Sample Description 1615 hrs. Date Received 6/23/89 SC-1 Date of Analyses 6/29/89 Soil Analyses for BTXE and TVH Compound Results Detection (rog/kg) Limit (DAR) Benzene .................... 03 0.02 Toluene .................... 04 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: B~XE-EPA 8020 ~VH-EPA 8015M ND-None Detected 8DL-Be[ow Detection Limit DLR-Detect~on L~mit For the Purposes of Reporting 770'-89 QA~/~C Superv,~r t~anics~p ' r '~ BSK ,Associates Chemical Laboratories i414 ~i',mislaus ~.~t.(.~ Fr(,~,-~, C,~iornia ~37'u0 ~L, ic. lmone ~209~ 485-8310 - Fax (209) 485-7427 ~razan & Associates 4816 E. Shields Lab No. Ch891966-8 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Date Sampled 6/21/89 Sample Description 1615 hrs. Date Received 6/23/89 SC 2 Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) .............. ND 0.5 Arsenic (As) ............... 3.8 1.0 Beryllium (Be) ............. ND 0.5 Cadmium (Cd) ............... 0.5 0.5 Chromium (Cr) .............. 4.4 0.5 Copper (Cu) ................ 19 0.5 Lead (Pb) .................. 10 1.0 Mercury (Hg) ............... ND 0.2 Nickel (Ni) ................ 2.2 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................ ND 0.5 Thallium (T1) .............. ND 1.0 Zinc (Zn) .................. 24 0.5 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit for the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 ,, Telephone 1209} 485-8310 Fax 1209; 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch891966-8 Fresno, CA 93703 Report Date 7/6/89 Sample Type Soil Date Sampled 6/21/89 Sample Description 1615 hrs. Date Received 6/23/89 SC-2 Date of Analyses 6/29/89 Soil Analyses for BTXE and TVH Compound Results Detection (rog/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.27 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M /~D-None Detected 8DL-Be[ow Detection Limft DLR-Detection Limit For the Purposes of Reporting BSK & Associates Chemical Laboratories 14i4 Stanislaus Slr~t -,' Fresno, California u37(,(~ k:i~,',',h~-~'~e ~209) 485-B310 Fa× i209; 485-7427 Krazan & A==cciates 4816 E. Shields Lab No. Ch891966-9 Fresno, CA 93703 E89-039 Report Date 7/6/89 Sample Type Soil Da'te Sampled 6/21/89 Sample Description 1615 hrs. Date Received 6/23/89 SC 3 Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Solids Constituent Results DLR (rog/kg) Antimony (Sb) .............. ND __ 0.5 Arsenic (As) ............... 3.3 1.0 Beryllium (Be) ............. ND 0.5 Cadmium (Cd) ............... ND 0.5 Chromium (Cr) .............. 4.0 0.5 Copper (Cu) ................ 16 0.5 Lead (Pb) .................. 8.8 1.0 Mercury (Hg) ............... ND 0.2 Nickel (Ni) ................ 1.9 1.0 Selenium (Se) .............. ND 1.0 Silver (Ag) ................ ND 0.5 Thallium iT1) .............. ND 1.0 Zinc (Zn) .................. 18 0.5 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit for the Purposes of Reporting __ QA/QgSupervis'or Inorganics Supervisor 070489 BS]( & Associates Chemical Laboratories 1414 Stanis]aus Street Fresno, California 93706 Te]ep~o ~t:· ~2U9i 485-8310 Fax i209~ -~85---:27 Krazan & Associates 4816 E. Shields Lab No. Ch891966-9 Fresno, CA 93703 Report Date . 7/6/89 Sample Type Soil Date Sampled 6/21/89 Sample Description 1615 hrs. Date Received 6/23/89 SC-3 Date of Analyses 6/29/89 Soil Analyses for BTXE and TVH Compound Results Detection (mg/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Be[ow Detection Limit DI.R-Detection Limit For the Purposes of Reporting QA/Q~ Super¥isor 0 g ' s ~ervisor 270489 ~/~ 1-;14 $lanisbu.% $tree~ Krazan & Associates Report Date 7/6/89 4816 E. Shields Fresno, CA 93703 Date Sampled 6/'21/89 Date Received 6/23/89 Sample Type Soil Date of Analyses 6/30/89 Lab Number Sample Description 1966-7 SC-1 1615 hrs. 1966-8 SC-2 1615 hrs. 1966-9 SC-3 1615 hrs. Results of General Chemical Analyses Compound Units Lab. No. Lab. No. Lab. No. 1966-7 1966-8 1966-9 Oil and Grease ........... mg/kg 510 61 <50 QA/QC Sup Inorganics Supervisor ~d70&89 BS[< & Associates Chemical Laboratories 14~4 Stanislaus Strue! Fresno, California 93706 Telepi~o~e ~2u9~ 485-831L) Fax ~u9'~ 485-7427 Krazan 5 Associates 4816 E. Shields Lab No. Ch891966-10 Fresno, CA 93703 E89-039 Report Date 7/6_/89 Sample Type Water Da'te Sampled 6/21/89. Sample Description 1415 hrs. Date Received 6/2.3/89 MWA WI Date of Analyses 6/30/89 EPA Priority Pollutant Metals Analyses for Total Metals in Water Constituent Results DLR (rog/1 ) Antimony (Sb) .............. ND 0.05 Arsenic (As) ............... ND 0.010 Beryllium (Be) ............. __ND 0.01 Cadmium (Cd) ............... ND 0.01 Chromium (Cr) .............. __ND 0.05 Copper (Cu) ................. __ND 0.05 Lead (Pb) ................... ND 0.01 Mercury (Hg) ............... ND 0.002 Nickel (Ni) ................ ND __Q0.05 Selenium (Se) ............... ND 0.010 Silver (Ag) ................. ND 0.01 Thallium (T1) .............. ND 0.05 Zinc (Zn) .................. ND 0.05 ND-None Detected BDL-Be[ow Detect,on L~m~t DLR-Detect~on L~m~t for the Purposes of Reporting 1414 Stanislaus Street * Fresno, California 93706 ~ Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch892065-1 Fresno, CA 93703 E89-039 Report Date 7/10/89 Sample Type Soil Date Sampled 7/3/89 Sample Description 1200 hrs. Date Received 7/3/89 4' DeeD [)ate of Analyses 7/6/89 Soil Analyses for Total Lead Compound Results Detection (rog/kg) Limit (DIOR) Total Lead ................ 16 1.0 Method: EPA-7421 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting QA/~C Supe~ -- Inorg'anics Supel-cisor ' R070489 1414 Stanislaus Street * Fresno, California 93706 * Telephone/209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch892065-2 Fresno, CA 93703 E89-039 Report Date 7/10/89 Sample Type Soil Date Sampled 7/3/89 . Sample Description 1210 hrs. Date Received 7/3/89 4-1/2' Deep Date of Analyses 7/6/89 Soil Analyses for Total Lead Compound Results Detection (rog/kg) -. Limit (DLR) Total Lead ................ 16 1.0 Method: EPA-74Z1 ND-None Detected BDL-Be[ow Detection Limit DLR-Detection Limit For the Purposes of Reporting ROTO&89 1414 Stanislaus Street · Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates Report Date 7/10/89 4816 E. Shields Fresno, CA 93703 Date Sampled 7/3/89 E89-039 [)ate Received 7/3/89 Sample Type Soil Date of Analyses 7/5/89 Lab Number Sample DescriDtion 2065-1 4' Deep 1200 hrs. 2065-2 4-1/2' Deep 1210 hrs. Results of General Chemical Analyses Compound Units Lab. No. Lab. No. Lab. No. 2065-1 2065-2 Oil and Grease ........... mg/kg __180 220 QA/~ Superv~gor Inorganics Supervisor R070489 1414 Stanislaus Street ,, Fresno, California 93706 - Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Lab No. Ch892065-3 Fresno, CA 93703 E89-039 Report Date 7/10/89 Sample Type Soil Date Sampled 7/3/89 .Sample Description 1220 hrs. Date Received 7/3/89 4' Deep Date of Analyses 7/6/89 Soil Analyses for Total Lead Compound Results Detection (rog/kg) -' Limit (DLR) Total Lead ................ 6.1 1.0 Method: EPA-7421 ND-None Detected BDL-Be[ow Detect,on L~m~t DLR-Detect~on L~m~t For the Purposes of Reporting R070489 QA/~C Supe~or InJ'rganics Supervisor PARAMETERS OTHER ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 PROJECT OBSERVATIONS/ COMMENTS Printed Name/~-'~,,,t.,/~-~ SAMPLE NO DATE LOCATION .../ (I .? , ~ RELINQUISHED B"j~ RECEIVED DATE RELINQUISHED BY DATE RECEIVED BY DATE TOTAL NUMBER OF CONTAINERS ,,,,-.o,,o,s.,,.,,,,,- .. nalure $,gnalure.~r~C('~ TIME Signalure TIM~ Signalure TIDE I'I~P Name Printed Name Printed Name SPECIAL SHIPMENT/HANDLING OR STORAGE REQUIREMENTS ompany Company Company Company Signalure Signalure Signature Signalure lied Name Prinled Name Prinled Name Prinled Name · mpany Company Company Company PARAMETERS OTHER ADDRESS KRAZAN & ASSOCIATES, INC. -- 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 (2~? 9-7331 ~ ~ COMMENTS inted Name SAMPLE NO DATE TIME LOCATION DATE ~HED BY RECEIVED BY TOTAL NUMBER OF CONTAINERS METHOD OF SHIPMENT ute lure Signalure Signature~ ~,~ TIME TIME TIME Prinle d~ Prinled Name Pdnted Name SPECIAL SHIPMENT/HANDLING . ~ OR STORAGE REQUIREMENTS RELINQUISHED ~Y RECEIVED BY DATE RELINQUISHED BY DATE RECEIVED BY (laborato~) DATE Signature Signalure Signalure Signatu,e TIME TIME hied Name Printed Name Pdnted Name Prinled Name . PARAMETERS OTHER ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 PROJECT ~b - ~ ), ~ OBSERVATIONS/ ~- '-~ (SiC .... E ......... COMMENTS SAMPLE NO DATE TIME LOCATION l¢ _~,F r: ~ 1~~,,~~ ~-~3~* o. co...,...s ..... I Signalure , / / ~' Signature Signalure Signature Company Company Company RELINQUISHED BY ]DI ~'~ RECEIVED BY DATE RELINQUISHED BY DATE RECEIVED BY (laborato~) DATE ~~ Signalure Signalure Signature  -II ~- TIME TIME TIME JT nted N~ ~ Prinled Name Printed Name Prinled Name / ~;~ L -~;;-P7~ ................... Com,~.y Company ,, ,, ,, ~- ^ ,., ~. ^ ~ .., ,~ ,.:, ^-,'. ~ C, ~ai~, of ~us[oay Record PARAMETERS OTHER ADDRESSKRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 (2¢9_). 291;z337 ..~ ~ SAMPLE NO DATE i TIME LOCATION nalure gnalure ~Signature Signature TIME TIME TIME Name qame Prinled Name Prinled Name -'~PECIA-L~ ~<;--,,%'- .... ORSTO.A~E.EOU,.EME.TS Company Company Company Company RELINQUISHED BY RECEIVED BY DATE RELINQUISHED BY DATE RECEIVED BY (laboralory) DATE Signalure Signalure Signalure Signalure TIM~ ...... TIME TIME inled Name Printed Name Printed Name Printed Name 'a_n._y ........................ Company Company _C_ompa__n_.y_ ,. ,, .. ~ ,. ,.~ ~. ^.. o ,:, ^-,. ,~..- C, ,ai,, of L;US[OaV Record e,o~,¢~,~¢,~ ~,~,,~,,,o,, - ............................... I _~_ ] DATE ~ / PAGE. OF _ PARAMETERS OTHER ADDRESS KRAZAN & ASSOCIATES. INC. 3860 NORTH WINERY FRESNO. CALIFORNIA 93726 (209) 291-7337 ~"~C~' C) '-'~¢~ -'~ ' PROJECT ~'7 ~.'~-',) · . -// / / OBSERVATIONS/ ........... Printed Name ,. ~- ~,~~__-C- ,.'~ ~'~'~ M THOD OF SHIPMENT Signature ~ , / ~ Signature Signature Signature ~;~¥~b%~ ...... ~1 Printed Name -Fr~;;le~ Name Printed Name SPECIAL SHIPMENT/HANDLING RECEIVED BY (labora[o~) ~;7~;d~ ~ Pdnted Name Pdnted Name T~~~--~ /.~ KRAZAN ASSOCIA i'ES, INC. Construction Testin~ and Inspection Ge°technical lnvestigati°ns Environmental Engineering Laboratory Soils Testing Monitoring Wells May 15, 1989 Project No. E89-039 Lance-Kashian 1100 West Shaw Fresno, CA 93711 RE: Work Plan Preliminary Site Characterization Proposed Office Club - Costco Expansion Arrow Street and Gilmore Avenue Bakersfield, California Gentlemen; We appreciate the opportunity to submit the attached work plan and health/safety plans for the proposed Office Club/Costco Expansion located at Arrow Street and Gilmore Avenue in Bakersfield, California. We are prepared to begin the field work within approximately five to ten days of notification of your authorization and approval of this work plan by the Kern County Environmental Health Department. All work would be accomplished on a "time and material" basis. A copy of the work plan was forwarded to the Kern County Environmental Health Department for their review and authorization. If there are any questions or if we can be of further assistance, please do not hesitate to contact our office. ~.~,~-, _~,,~ Respectfully submitted, / .~...~' A £ t:'~~ .,.,xx'~ KRAZAN & ASSOCIATES, IN,~.) [l~?' ,;o. 3.,--,.,,vl ! :~ii1 Robert A. Martin Proj~t Geologist/ ~[~' Ex.~ir~$ ,g,p...?,0,~,[,,.9,,] ]] E~,mnental DMsion Mgr. ~~-tt~q',~'/ Dean Alexander  Geotechnical Engineer RGE #002051/RCE #34274 RAM/DA/lc Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291.7337 Bakersfield (805) 393-2343 ~ Visalia (209) 625-8251 ~ Merced (209) 383-3993 KRAZAN AS .,OCiA i ESC , IN C . Construction Testin~ ........ ~ection Environmental Engin~ring ~borato~ Soils Testing , it~ J ~ ]! Monfforing Wells ~ k ~ / //~/ [ May 15, 1989 Project No. E89-039 WORK PLAN SITE CHARACTERIZATION PROPOSED OFFICE CLUB - COSTCO EXPANSION ARROW STREET AN'I) GILMORE AVENUE BAKERSFIELD, CALIFORNIA SITE DESCRIPTION & LOCATION: The subject site is a rectangular shape property encompassing approximately 5 acres south of the existing Costco Home Club development. It is currently a portion of the Don Keith Trucking Company yard. The property is located on the southwest corner of Arrow Street and Gilmore Avenue in a commercial and light industrial area adjacent to Highway 99 in Bakersfield, California (See Vicinity Map). According to the U.S Geological Survey 7.5 minute Oildale, California topographic quadrangle map, the property occupies a portion of the northeast 1/4 of the southeast 1/4 of Section 23, T29S, R27E, Mount Diablo Baseline and Meridian. Historical photographs dated 1937, 1956, 1975 all show the subject site to be essentially vacant. The 1985 aerial photographs shows the site to be covered by a laver of asphalt. Over the last sixty years, the site appears to be undeveloped except for the asphalt coverings and the site has been primarily unused except for recent times when Don Keith Trucking Co. has used it as parking area. SITE HISTORY A March 22, 1989 Level I Hazardous Substance Site Assessment Report was completed for the proposed Office Club - Costco Expansion. The site is located at the southwest cOrner of Arrow Street and Main Office: Fresno/Clovis · 3860 N. Wine/¥ · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 ~ Visali~-i (209) 625-8251 [] Merced (209) 383.3993 Project No. E89-039 Page No. 2 Gilmore Avenue in Bakersfield, California. The Level 1 HSSA was requested to identify any obvious toxic or hazardous materials at or near the site. During this investigation, soil samples were obtained from beneath areas that exhibited signs of minor surface contamination. An additional sample was obtained in an area that had been covered by firewood and where a substance known as "vacuum bottoms" was reported to exist. The results of these sampling are presented in the following table. Based on these results it was determined that the surface contamination noted in a few areas on site had not migrated very far vertically into the soil (one-half to two feet). It was also concluded that there had been some leaching of hydrocarbons into the soil beneath the vacuum bottoms and that further testing would be necessary to determine the extent of the vacuum bottoms and any materials that may have leached from it. At the time of the Level I HSSA, piles of firewood belonging to Swen's Firewood occupied the northeast portion of the subject site. The site surface was covered by a layer of cracked asphalt and a moderate weed growth was growing up from the cracks through the asphalt. Out-of-service tanks trailers owned by Don Keith Trucking occupied the southwest portion of the subject site. Several areas of surface discoloration were noted including a ten square foot area located in the southeast portion of the subject property. The discoloration appeared to be motor oil or waste oil and was confined to the asphalt and upper fewer inches of soil. During the Level I HSSA, soil samples were obtained for chemical analysis. The results of those analyses are detailed in Table I. For the locations of the samples obtained, please refer to Figure 2. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 3 TABLE I Concentrations of Petroleum Constituents in Soils Level ! HSSA Report March 22, 1989 Proposed Office Club/Costco Expansion Bakersfield, California (Concentrations in parts per million) Test Method and Constituents Sample #1 Sample #2 Sample #4 Sample #6 Sample #7 Sample #8 @ 1.5' @ 2.5' @ 2.5' Gl.0' @1.5' @ 3.5' EPA 9071: Oil & Grease 65 * 40 1,015 * * EPA 7420: Total Lead 2.1 2.0 2.0 * * * DOHS LUFT: Total Petroleum Hydrocarbons (Diesel) * * ND ND ND ND EPA 8020: Benzene * * * * N D N D Toluene * * * * N D N D Ethylbenzene * * * * N D N D Total Xylenes * * * * ND ND Isopropylbenzene * * * * N D ND EPA 8015M: Total Petroleum * * * * N D N D Hydrocarbons (Gas) * * * * ND ND Note: Sample Nos. 3 and 5 were not analyzed ND = None detected * = Not tested for this constituent According to Don Keith of the Don Keith Trucking Company, vacuum bottoms are located just beneath the surface in the area underneath the firewood. The presence of the firewood obscured surficial evidence of the vacuum bottoms. On April 6, 1989, the Kern County Health Department issued a letter indicating that further sampling and analysis would be necessary before a site clearance could be given. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 4 The purpose of this investigation would be to determine the nature of the tank bottoms and the extent to which components of the tank bottoms had migrated into the soil. GEOLOGIC AND HYDROLOGIC SETI'INGS Geology Bakersfield is located in the southern portion of the San Joaquin Valley of California. The San Joaquin Valley is a structural through bounded on the west by the Coast Ranges and on the east by the Sierra Nevada. Subsurface materials in the southern San Joaquin Valley are composed primarily of alluvium from Sierra Nevada source rocks deposited by the Kern River and its tributaries. These soils are primarily mixtures of silts and sands. The U.S. Geological Survey 7.5 minute Oildale, Calif. topographic quadrangle map shows the elevation of the project site to be approximately 405 feet above mean sea level. Hydrology Bakersfield is in the San Joaquin Basin Hydrology Study Area which is primarily an arid to semi-arid environment. Within the Study Area, thirty-nine groundwater basins and areas of potential groundwater storage has been identified. More specifically, Bakersfield is within the 70 square mile Kern County Basin. Below the project site, there is believed to be two main aquifers separated by an aquitard of regional extent. This aquitard is locally referred to as the "300 foot clay'. The aquifer above the clay layers is referred to as unconfined and that below the clay layers is called confined. The upper unconfined aquifer is generally not used for domestic water supply, but is pumped extensively for agricultural use. The lower confined aquifer is used for both domestic and agricultural purposes. According to the Kern Water Agency reports on water conditions including District #4 for years 1982 to 1987, the depth to the groundwater in the vicinity of the project site is between 10 and 15 feet below grade. PURPOSE OF THE INVESTIGATION The purpose of the site investigation is to determine the lateral and vertical extent of the tank bottoms in the subsoils. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 5 SCOPE OF THE INVESTIGATION The scope of the investigation will be limited to the advancement of 2 soil boring to a maximum depth of 10 feet in the area where the tank bottoms have been buried, and the installation of one temporary monitoring well to obtain a groundwater sample for chemical analysis. Soil and water samples would be analyzed for oil and grease, and heavy metals. METHODOLOGY In order to accomplish the goals established in the purpose and scope of the investigation, the following methods would be employed: 1. All necessary permits will be obtained prior to the commencement of the investigation at the project site. It should be understood that copies of this work plan may need to be released to various regulatory agencies to obtain approval to begin our field investigation. 2. An additional literature survey of published geologic and groundwater data in the vicini~ of the project site will be conducted in an attempt to fully describe the conditions present. 3. Two exploratory soil borings will be advanced to a depth of 10 feet by means of a Mobile Drill, B-61 and/or truck-mounted drill rig utilizing hollow stem auger. Drilling fluids will not be used while advancing any of the borings. 4. Soil samples will be taken for logging purposes at depths of one, five, and ten feet. Soil sampling would be conducted by means of pushing stainless steel tubes at discrete intervals (ASTM D-1587-86, "Thin-Walled Tube Sampling of Soils"). Selected soil samples would also be submitted for chemical analysis. 5. Tubes will be covered at each end with aluminum foil and a tight fitting plastic cap. Each sample would then be labeled with the project number, sampler's initials, boring number, time and depth at which the sample was taken. Samples would then be placed in a cooler chest with synthetic ice to limit the volatilization of any contaminants that may be present. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 6 6. A third boring would be aclvanced approximately 20 feet hydraulically downgradient of the tank bottoms. The purpose of this soil boring would be to install a two-inch diameter PVC monitoring well to obtain a representative groundwater sample. 7. The well would consist of 2-inch diameter Schedule 40 PVC screened section with 0.020" slotted openings. Above the screened section would exist a 2-inch diameter schedule 40 PVC well casing. The filter medium for the saturated zone would consist of #2 or #16 sand. The filter medium would generally extend approximately one foot above the slotted interval. Above the filter medium, a seal of a minimum two foot thickness would be established using 3/8 -inch diameter bentonite pellets. The remaining annulus (above the bentonite seal) would be grouted with a six sack sand/cement slurry. Approximately 5% bentonite powder would be added to the mix to reduce shrinkage away from the well pipe or sidewalls, and to reduce the heat of hydration. 8. A surface vault would provide a near flush surface access to the locked well head on each well. The vault would be slightly elevated to provide drainage away from the well and to facilitate future construction. Figure III represents a typical well diagram. 9. Following installation each well would be sounded, then developed by bailing approximately five well volumes. Waters generated from the development of each well would be barreled pending proper disposal by the property owner. Following well development, each well would be allowed to stabilize, and then be re-sounded. 10. After well stabilization, each well would again be re-sounded; then sampled for chemical analysis by means of a Teflon bailer. Water from the bailer would be transferred to volatile organic analysis (VOA) vials. The VOA vials would be laboratory clean with a Teflon lined septa to ensure a tight fit. Each VOA vial would then be placed in a cooler chest with synthetic ice. 11. The two soil borings would be backfilled with a sand/cement slurry with 3% to 5% bentonite added to reduce shrinkage. All excess drilling returns would be stored on the property on top of and covered by visquene pending the proper disposal by the property o~,vller, KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 7 12. All samples will be collected, maintained, and transported under chain of custody protocol to a state approved laboratory for chemical analysis. Soil samples from the borings would analyzed for oil and grease, and priority pollutant metals. The water sample would analyzed for total petroleum hydrocarbons and priority pollutant metals. · - 13. All drilling equipment would be steam-cleaned before arriving on site, between each boring, before leaving the site, and as necessary to minimize the potential for cross-contamination. 14. All field work will be conducted under standards set forth by industry and deemed acceptable by various regulatory agencies. Hard hats, protective eyewear, hearing protection, protective clothing, and steel-toe boots will be worn by all field personnel when deemed appropriate by the field engineer or geologist present. For further health and safety related information, please refer to the attached Health & Safety Plan. 15. Upon completion of the field and laboratory investigation, a detailed report would be compiled presenting the findings of our investigation including any known or anticipated potential threat to groundwater resources present. Remedial alternatives would also be discussed if appropriate. We would be in a position to begin the field portion of the investigation within five to ten working days of notification of your, and the Kern County Health Department's verbal acceptance of our work plan. It is anticipated that the field portion of the investigation would take about two working days. Results of the chemical analysis would be expected approximately two weeks after the completion of the field portion of our investigation. The final report should be available for review approximately 5-10 working days following receipt of the results of chemical analysis; however, verbal results could be made available sooner. This time schedule is intended for use only as a planning tool. Factors such as the time necessary for regulatory, approval, weather, or the subsurface conditions encountered are beyond our control. KRAZAN & ASSOCIATES, INC. Project No. E89-039 Page No. 8 If there are any questions or if we can be of any further assistance, please do not hesitate to contact our office.  Respectfully submitted, KRAZAN & ASSOCIATES, INC., Robert A. Martin E~vfi~.flnmental Division Mgr. ~~y Dean Alexander f-- - - ~"~'~ ~ Geotechnical Engineer  RGE #002051/RCE #34274 RAM/DA/lc 2c herewith 2c Kern County Environmental Health Department KRAZAN & ASSOCIATES, INC. 438 ' I ! "x ~','- i ii" ~ :: ilJ~nction ,,~ :' Oil !i ..... ; ~ # , '% ,; .... :__ ~' -- i~__ ~ ~ -: ' ..... " . - =~ ___ .. Primary Sch~, _.;'"-~ ? ....... ' .... : ,~ ~ ..... . . , : :. - . :' ~ = ~ ~, .: ... 71 ~/"" ' o ,, ~ .-#. ~. ~,~:t ~. 4' ~'''~ - ~: ==&:, :..--, ' ~ o - o~j::o.~ .... ~ I · : ' ' '" :" '0 o ~ ...... : ~ o i · · . ." 'd · f~ ' ~ o; o ',~ i o ~7 o ~ ~1:: [ ~ i~ ~ .' "2g- ,.., .; _, , ~, ,. '.. ~ o o : ~ ~ t 4 ,,,, .:, t .,? / , ," -. . _-, .... ~J , ~ t.~ ~ // , .. n. t,~,~..ar -~.~ ~ o ~i te Mile 2~' .-~,~ .."~-?'aa ~A r v, y: KRAZAN& ASSOCIATES, INC. Construction Testin~ ........ ~ection Environm~tal Engin~ring _ ~borato~ Soils T~ting Monitoring Wells ~ / J/~/ KRAZAN & ASSOCIATES, INC. HEALTH AND SAFETY PLAN SUMMARY The purpose of this summary is for quick field reference for the commonly referred to items covered in the Health & Safety Plan. It is not the intent of this summary to replace or supercede the information referred to in the Health & Safety Plan. ANTIOIPATED (~LOTHING/EQUIPMENT · Hard Hat .Safety Glasses · Ear Plugs .Steel Toe/Shank Boots (Work_.~/Rubber__) · Gloves (we rk~./nitrile__) · Krazan & Assoc. Uniform_,~/White Tyvek® Coveralls__/Yellow Tyvek® Coveralls__ · No Respirator.~/Half-Face Air Purifying__/FulI-Face Air Purifying__/Supplied Air EMERGENOY ~ACT$ · K&A (Main Office) (209) 291-7337 -Police 911 · Fire 911 -Paramedics 911 · Hospital 805-327-1 792 -HazMat Team 805-861 -3636 · County Env. Health 805-861-3637 NOTE: For additional information regarding this project site, please refer to the Health & Safety or Work Plans for this investigation. Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 © Visa/ia (209) 625-8251 © Merced (209) 383-3993 Project No. E89-039 Health & Safety Plan Page No. 1 TABLE OF CONTENTS Section Paqe 1.0 INTRODUCTION 3 1.1 Project Description 3 1.2 Key Personnel & Responsibilities 3 2.0 HAZARD EVALUATION 5 2.1 Hollow-Stem Auger Drilling 8 2.2 Heat Stress/Stroke and Noise 9 2.3 Sampling for Chemical Analysis 1 0 2.4 Packaging and Shipment of Samples 1 0 2.5 Sample Preparation and Analysis 1 0 3.0 SAFE WORK PRACTICES AND LEVEL OF PERSONAL PROTECTION 1 1 3,1 Potential Fire/Explosion Hazard 1 1 3.2 Potential Health Hazards 1 1 3.3 Potential Heat Stress Hazards 1 3 3.4 Potential Noise Hazards 1 3 4.0 HYDROCARBON VAPOR HAZARD CRITERIA I 4 Table 1: Hydrocarbon Vapor Criteria and Responses 1 5 5.0 PERSONAL PROTECTIVE CLOTHING/EQUIPMENT REQUIREMENTS 1 6 5.1 Drilling Operation 1 6 5.2 Sample Collection 1 7 5.3 Packaging and Shipment of Samples 1 8 5.4 Sample Preparation and Analysis of Samples 1 9 Table 2: Personal Protective Equipment Requirements 1 9 KRAZAN & ASSOCIATES Project No. E89-039 Health 8, Safety Plan Page No. 2 6.0 WORK ZONE ACCESS 21 7.0 DECONTAMINATION PROCEDURES 21 7.1 Work Zones 22 7.2 Decontamination Protocol 23 7.3 Personal Hygiene Requirements 24 8.0 MONITORING PROGRAM 24 8.1 Pholoionization Detector 25 8.2 Dr~ger® Detector Tubes 25 9.0 SAFETY AND HEALTH TRAINING 2 5 10.0 MEDICAL MONITORING PROGRAM 27 11.0 EMERGENCY RESPONSE PLAN 27 11.1 Injuries 28 11.2 Fire and Explosion Hazards 28 11.3 Operations Shutdown 29 11.4 Community Protection 29 12.0 RECORD KEEPING REQUIREMENT 30 KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 3 1.0 INTRODUCTION This plan describes the health and safety procedures for the activities planned for the investigation at the proposed Office Club - Costco Expansion project site. All Krazan & Associates employees and field personnel will abide by this plan. It is intended that all project work will comply with applicable codes and regulations of the United States Occupational Safety and Health Administration. Each field team member working on this project will have the general responsibility to identify and correct any health and safety hazards and strive to make the work place safe. 1.1 Pro!ect Description This project is the investigation to be performed by Krazan & Associates at the previously-mentioned project site. The scope of the project will include the drilling of exploratory soil borings, the installation of monitoring wells and the sampling of soils, and groundwater on the subject property. Sample labeling, preparation, shipment and analyses will also be performed. 1.2 Key Personnel & Responsibilities The following personnel who will have the overall responsibility for the safe operation of this investigation are: Project Directors: Dean Alexander Robert A. Martin Safety Officers: Bruce E. Myers Task Leaders: Ronald E. Holcomb Safety Task Leader: Ronald E. Holcomb It is the responsibility of the above-designated safety officers to: · Implement, the site safety training program for all project field team members as described in this document. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 4 · Assure that all field personnel have read and understand this Health and Safety Plan. · Establish effective traffic and pedestrian control around the drilling site. Insure that adequate drilling site security is maintained. · Perform work place surveillance for flammable/explosive conditions and insure that there is a portable fire extinguisher located on-site. · Provide nitrogen gas for the downhole flushing of vapors if conditions are deemed to be appropriate. · Observe activities to insure the proper use of personal protective equipment such as hard hats, protective eyewear, coveralls(Tyvek® etc .... ), respirators, gloves, and steel-toe boots, etc. · Inspect safety equipment for use by all field personnel to insure that it has been maintained and is in a useable condition. · Shut down or modify field work activity based on the criteria presented in Section 11.0 and · Initiate outside emergency phone calls when an emergency or accident requires medical attention. · Insure that all field personnel meet or exceed the minimum requirements for health and safety training, medical monitoring, and respiratory fit testing as required by OSHA 29 CFR 1910.120. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 5 All field personnel will have a responsibility to: · Read understand, and follow this plan. · Perform work safety. · Cooperate with all safety personnel. · Report any unsafe conditions to the immediate supervisor. · Be aware and alert for signs and symptoms of potential exposure to site contaminants and health concerns. · Attend the site safety training program/meeting. · Insure drilling equipment and other machines are properly inspected and maintained and in compliance with applicable sections of the California and United States Occupational Health and Safety Codes. · Maintain safety related protective equipment such as hard hats, Tyvek® coveralls (or equivalent), gloves, safety eyewear, respirators, etc., as specified in this plan. 2.0 HAZARD EVALI,,JATI(;:)N This Health and Safety Plan addresses specific on-site work activities related to the collecting of samples and data from the project site. While the basic Work and Health & Safety Plans are by now very familiar to Krazan & Associates field crews, work on certain siles, particularly in Category A, B and C protective equipment, involve KRAZAN & ASSOCIATES Project N°. E89-039 Health & Safety Plan Page No. 6 exposure potentials to various contaminants and possibly to contaminants at unpredictable levels. Based on the limited historical and technical data available, this plan covers anticipated activities and hazards, and makes provision for modification or amendment as health-related data is obtained during this investigation. This plan will be amended with site-specific hazards identified as posing a potential health hazard for workers. For select sites, the Safety Officer will conduct a preliminary survey involving air and bulk solid sample analysis, and amend the Health and Safety Plan as needed. As analytical data become available, the information will be evaluated by a Health and Safety Task Leader. Appropriate action in the form of Work/Health and Safety Plan modifications will be initiated by the Safety Officer or the Health and Safety Task Leader. The anticipated activities of this investigation will include: The advancement of soil borings using hollow stem auger. · Direct reading hydrocarbon monitoring (PID) of well head, and ambient concentrations during drilling activities. · Collection of samples for chemical analysis. · Sample preparation packaging and shipment of samples for chemical analysis. · Analysis of selected samples by subcontracted laboratories (not covered under this plan). KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 7 The general categories of hazards associated with this investigation are: · Mechanical hazards: cuts, contusions, slips, trips, falls, being struck by moving objects, being caught by rotating objects; also muscular injury potential caused by overexertion or improper movement (e.g. back injury due to improper lifting), etc .... · Electrical hazards: possible excavation of buried cables, exposure to overhead power lines, wet electrical cords, etc. · Chemical hazards: exposure to chemicals/contaminants listed in Section 4.0 of this plan and exposure to extraction solvents, etc. · Fire hazards; possible excavation of buried utilities, flammable petroleum hydrocarbons, equipment fires, etc. · Thermal (heat stress) hazards: exposure to outside temperature extremes, and/or increased body temperatures while wearing protective clothing/equipment etc. · Acoustical hazards: exposure to excessive noise created by drilling operations and/or related to the site-specific operations, etc. · Routine job-related hazards in the subcontrator's laboratory. Neither these hazards nor any activities performed in the subcontractors laboratory are covered by this plan. Job hazard analyses associated with most major work activities are presented in the following sections. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 8 2.1 Hollow-Stem Auaer Drillina Hollow-stem auger drilling ;activities will potentially expose field personnel to the following hazards: Chemical hazards: · Exposure to various chemical substances, including but not limited to petroleum hydrocarbon liquids and vapors, and petroleum contaminated soils, sludges or liquids. Certain precautions may be necessary to properly control the potential fire/explosion/health hazards associated with these chemicals. Physical hazards: · Potential exposures to physical hazards associated with hollow-stem augering include the following: · snapping cables · brush, equipment, gas-main, or hydrocarbon fires · being hit by equipment · becoming entwined in rotating tools · falling objects · exposure to excessive noise · exposure to outside temperature extremes. · exposure to the potential for heat exhaustion due to protective clothing · slips, trips, and ~alls · buried cables and underground utilities · overhead utility hazards · not using the proper tool for the job KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 9 2.2 Heat Stress/Stroke and Noise During day-to-day field work, the on-site engineer/geologist and/or safety officer will be alert for the .signs and symptoms of heat stress. Hazard exists when individuals are required, to work in warm or hot temperatures while wearing protective clothing. When the ambient air temperature exceeds 85°F, heat stress may become a problem. For an unacclimatized person this temperature may be less. If these conditions are encountered, the following precautions will be taken: The on-site geologist/engineer or safety officer will regularly monitor the ambient air temperature. Field team members will be observed for the following signs and symptoms of heat stress: · profuse sweating · skin color change · increased heart rate · vision problems · body temperatures in excess of IO0°F as measured by fever detectors (forehead strips) may also be used. Any team member who exhibits any of these signs or symptoms will be removed immediately from field work and be requested to remove impervious clothing, and consume electrolyte fluid or cool water while resting in a shaded area. The individual will be instructed to rest until the symptoms are no longer recognizable. If the symptoms appear critical, persist or !get worse, immediate medical attention will be sought. While working around drilling equipment the potential exists for exposure to excessive noise. If noise levels are known/believed to exceed 85 dBA-8 hours per day, all individuals will be instructed to use adequate hearing protectors (ear plugs). All field team members will be given background and annual evaluations. All field team KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 10 members have been/will be trained in noise hazards and how to wear the protective equipment. 2.3 SamDlina for Chemical AnalytiC Samples will be collected for the purpose of observation and soil logging. Additionally, selected samples will be submitted for oil and grease and priority pollutant metals. Some of these samples may contain high levels of hazardous materials creating the potential for chemical inhalation exposure, skin contact and possibly even ingestion. These activities may pose one of the grea~test risks of chemical exposure for the site assessment work plan. Appropriate worker training, protective measures and medical monitoring will be enforced to control this health hazard potential. 2.4 Packaaina and Shi[:)ment of $~mple~ After the samples have been collected in sample containers, they will be properly packaged to protect shipping personnel. The hazards associated with shipping samples are minimal, provided care is taken to prevent the containers from leaking or breaking. Additionally, sample containers will be plainly marked in case of exposure. 2.5 Sample Preparation and Analysis The preparation of samples for analysis may expose the technician to routine hazards associated with laboratory work. Standard laboratory safety procedures should be used to prepare and analyze these samples. The samples should be treated carefully and handled inside a properly operating fume hood due to their potentially volatile and hazardous nature. In the event of a mishap, the laboratory supervisor should be notified immediately. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 11 3.0 SAFE WORK PRACTICES AND LEVEL OF PERSONAL PROTECTION The following sections present procedures on how to adequately address the primary potential hazards encountered in the different task of this project. The standard level of personal protection is also defined. Based on the work to be performed the type of chemical hazards that may be encountered, EPA Level D personal protection has been determined to be adequately protective and suitable for most of the tasks in this project. Certain tasks may require a higher level of protection, such as air-purifying or air-supplied respirators. These determinations will be made by the Safety Officer or Safety Task Leader and will be specified as amendments to this section of the plan. 3.1 Potential Fire/ExDIo$ion H¢zcr~ Due to the flammable nature of the hydrocarbons, explosive vapor conditions will be carefully monitored by the Krazan & Associates task leader. The lower explosive limit (LEL) for gasoline hydrocarbons is approximately 1.4% in air. Using a 10-fold safety factor, a working criteria of 1400 ppmv (10% LEL) as measured by a PID is established for explosion hazards. When measurements obtained near the bore hole reveal this concentration, nitrogen gas will be injected into the well to reduce the possibilities of explosion. Should total hydrocarbon levels of 1,400 ppmv or above be detected in the general drilling work area, work will be stopped. Additionally, the field crew will be instructed to stay upwind until these concentrations diminish. 3.2 Potential Health Hazards Depending on the conditions ,encountered, the Task Leader in coordination with the Project Safety Officer may increase or decrease the level of personal protection required of all field team members. Such decisions will be made based on initial and periodic measurement of breathing zone concentrations of petroleum constituents by PID and on other data collected as work is conducted on a given site. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 12 Generally speaking, EPA Level D Personal Protection will be in accordance with the following quidelines: · Krazan & Associates technician uniform · hard hat · safety glasses, · ear plugs (as required) · steel-toe boots. Some general guidelines representing EPA Level C personal protection that may be used are: · Tyvek® coveralls (or equivalent), neoprene boots and rubber gloves (to be worn by any personnel who handle contaminated drilling equipment. · Individuals at drilling sites no! directly exposed to contaminated soils or liquids may not need to wear Tyvek® coveralls due to the increased hazards of heat stress when wearing this type of clothing. · Latex or PVC disposable gloves should be worn under butyl rubber or nitrile gloves to provide an extra measure of hand protection when handling heavily contaminated soils and water samples. · Chemical splash goggles will be worn when increased splash hazards exist, such as steam cleaning activities, during or the handling of contaminated liquid samples. · Respiratory protection will be worn during drilling activities that expose workers to hazardous levels of airborne contaminants. Direct reading personal breathing zone monitoring will be performed. The criteria established for the use of respiratory protection are discussed in Section 4.0. KRAZANI & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 13 3.3 Potential Heat Stress Hazards During conditions when the temperature, humidity and/or radiant heat are high and air movement is Iow, the following procedures will be followed to prevent heat stress hazards for workers wearing protective clothing/equipment: · Work activity will be limited to reduce the amount of heat naturally produced by the body. Alternating work and rest periods will be used in high potential conditions. For example, in moderately hot conditions, 5 minute rest breaks in the shade with 60 minute work periods in the sun may be desirable. Under severe conditions, the duration of rest periods will be increased as necessary, · Heavy work will be performed during the cooler periods of the day when feasible. · Under heat stress conditions special attention will be given toward assuring workers replace lost body fluids. Adequate supplies of cool drinking water or electrolyte solution will be provided by each company for their own employees' use. Workers will be instructed in the need to replace the fluids throughout the working day. · Special care and attention will be paid to field crew members that may not be acclimatized to the area. 3.4 Potential Noise Hazards Exposure 1o excessive noise will be controlled by issuance and use of hearing protection as instructed by the Task Leader or Safety Officer. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 14 4.0 HYDR(;~ARBON VAPOR HAZARD CRITERIA Exposure to elevated levels of hydrocarbon vapors presents potential health risks that must be addressed. Work practices and methods will be used to limit exposures. Where elevated exposures persist, respiratory protection will be used to protect personnel from inhalation of hydrocarbon vapors. The hydrocarbon vapors expected to be encountered during the field portion of this investigation are composed of a variety of volatile refined petroleum constituents. Most of these chemicals have limited toxicity thus requiring minimal controls at the concentrations that are anticipated to be encountered. There are certain components, such as benzene vapors, that present significant toxicological hazards and must be properly controlled. Water, soil, and vapor samples collected near the point of release commonly contain benzene at 1% of the total hydrocarbon constituents. Criteria for the use of respiratory protection is based on limiting potential exposures to benzene. A limit of 100 ppmv total hydrocarbon is proposed as the maximum acceptable hydrocarbon level of exposure without respiratory protection. An H-nu® photoionization detector (PID) will be used to measure real-time breathing zone concentrations for comparison with the 100 ppmv limit. When a persistent level of 100 ppmv is noted to exist, an appropriate respirator will be donned by that field team member. In a typical situation, with 1% of the hydroc;~rbon vapors being benzene, a 100 ppmv concentration of total hydrocarbon would result in a breathing zone level of less than 1 ppmv benzene. This level is one tenth of the current Permissible Exposure Limit (PEL) for an 8-hour occupational exposure to benzene. To assure benzene exposures are below a 1 ppmv limit, Dr2ger® benzene detector tubes will be used if PID measurements indicated persistent hydrocarbon levels above 30 ppmv. These detector tubes are not compound specific and may respond to other less hazardous petroleum hydrocarbons such as toluene, xylene and ethylbenzene. In the event that benzene detector tube measurements indicate that levels exceed 1 ppmv; respirators will be required. If benzene concentrations exceed 10 ppmv, work will cease. The field crew will be instructed to stay upwind of the borehole until the concentrations subside. This KRAZAN &. ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 15 is considered a conservative approach since the Drager® detector tubes may respond to several hydrocarbons other than benzene. Table 1 summarizes the various hydrocarbon vapor concentration and appropriate responses to prevent exposure to these potential vapor hazards. TABLE 1 HYDROCARBON VAPOR CRITERIA AND RESPONSES HYDROCARBON CONCENTRATIONS RESPONSE <30 ppmv Total Volatile Hydrocarbons Limited hazard, no special action. 30-100 ppmv TVH General Work Areas Benzene detector tube measurements taken each 30 min. 100-1400 ppmv TVH General Work Areas Half-mask OV Respirators worn by all in work area. Benzene detector tube measurements taken each 30 minutes. >1400 ppmv TVH Well Head Emissions Flush downhole with nitrogen gas. (near bore hole or auger flights) >1400 ppmv TVH General Work Areas Work stops; procedures taken to subdue excessive vapor levels. >1 ppmv Benzene in General Work Areas Half-mask OV respirators worn by all in work area. Benzene detector tube and measure- ments taken each 15 minutes until levels are well below 1 ppmv. >10 ppmv Benzene in General Work Areas Work stops; procedures taken to subdue excessive vapor levels. Benzene detector tube measurements taken each 15 minutes until con- centrations are below 1 ppmv. OV=Organic Vapor KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 16 5.0 PERSONAL PROTECTIVE CLOTHING/EQUIPMENT REQUIREMENTS This section specifies personal protective clothing/equipment required for the various tasks to be performed during this investigation. Table 2 summarizes these requirements. 5.1 Drillina ODerati0n~; · Respiratory Protection: All field personnel will be required to have available for use, a properly fit tested half-mask air purifying respirator with organic vapor cartridges and particulate pre-filters. These will be required to be worn based on the criteria listed in Section 4.0. · Protective Clothing: All field personnel who handle contaminated soils, liquid, or auger flights will wear semi-permeable (white) Tyvek® coveralls (or equivalent). Company issued safety helmets will be worn by all personnel during field work. · Hand Protection: Butyl rubber or nitrile gloves will be worn by all personnel handling auger flights and contaminated soils. Wearing disposable latex or PVC glow;s under the butyl gloves will provide added protection and aid in a more effective decontamination process. · Ear Protection: Based on anticipated on-site noise measurements, field personnel may be required by the task safety leader of safety officer to wear hearing protection devices (ear plugs) during drilling operations. · Eye Protection: Each field team member will wear a minimum of impact- resistant safety glasses with attached side shield. Where splashes of potentially hazardous liquid or flying particles are likely, chemical safety goggles will be required in place of safety glasses. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 17 · Foot Protection: Field personnel will wear neoprene rubber boots with steel toes and shanks. Under non-liquid exposure conditions, leather boots with steel toes and shanks are permissible. The boots will be taped to the leg of Tyvek® suits. Rubber gloves, Tyvek® coveralls and neoprene boots may not be required if soil or water is not obviously contaminated, or if PID measurements of the split-spoon soil samples are below 500 ppmv. 5.2 Sample Collection Personnel who may be exposed to contaminated samples and/or liquid splashes will be required 1o wear the following equipment: · Respiratory Protection: All sampling personnel will be required to have available for use a properly fit tested haLf-mask air purifying respirator with organic vapor cartridges with particulate pre-filters. Respirators will be worn based on criteria listed in Section 4.0. · Body Protection: All sampling personnel will wear semi-permeable (white) Tyvek® coveralls when contact with contaminated soil or liquids is likely to occur. Company issued safety helmets will be worn when overhead hazards exist. · Hand Protection: Butyl rubber or nitrile gloves will be worn over disposal latex or PVC gloves. · Eye Protection: Impact-resistant safety glasses with attached side shield must be worn during sampling activities. Where splashes may occur, chemical goggles must be worn. · Foot Protection: Neoprene rubber boots with steel toes and shanks will be worn. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 18 5.3 Packaoino and Shipment of SamDles · Eye Protection: Impact resistant safety glasses with attached side shield will be worn while packaging samples for shipment. · Hand Protection: Butyl rubber or nitrile gloves will be worn under disposal PVC gloves. Packaging and Shipping Requirements: All samples will be shipped strictly to a state approved laboratory. Shipping must comply with Department of Transportation (DOT) regulations. The following instructions will be followed to comply with DOT regulations: · tape all lids with electrical or other tape, · wrap the primary container with absorbent brown paper (wading), · place the primary container in a plastic bags (zip-lock, or equivalent) · place into an "ice chest" with a synthetic ice · tape or secure the "ice chest" lid and secure with a chain of custody seal (if applicable) · classify the containers according to the DOT regulations. In the event that samples are to be personally transported to the state- approved laboratory, some of the above packaging and shipping requirements may not apply. Any questions should be referred to the project manager. KRAZAN & ASSOCIATES i Project No. E89-039 Health & Safety Plan Page No. 19 5.4 Sample Preoaration and Analysis of Samples All laboratory safety practices should be accomplished in accordance with the specific labs policy. Krazan & Associates, its owners, clients, employees, and representatives are not responsible for safety on laboratory premises. Therefore, both shall be held harrnless in the event of any mishap, accident or long term adverse health effects occurring or originating at the subcontractor laboratory. TABLE 2 PERSONAL PROTECTIVE EQUIPMENT REQUIREMENTS DRILLIN(~ OPERATIQN$ Drilling Crew MANDATORY }TEM$ AVAILABLE ITEMS Tyvek® Coveralls* Respirator Chemically Resistant Gloves* Splash Goggles Neoprene Safety Boots* Ear Plugs Safety Helmet Safety Glasses Geologist/Engineers MANDATORY ITEMS AVAILABLE ITEMS Neoprene Safety boots* Respirator Safety Glasses Tyvek® Coveralls Safety Helmet Chemically Resistant Gloves Splash Goggles Ear Plugs KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 20 Surveyors/Safety Personnel MANDATORY ITEMS AVAILABLE ITEMS Neoprene Safety Boots* Respirator Safety Glasses Tyvek® Coveralls Safety Helmet Chemically Resistant Gloves Splash Goggles Ear Plugs WELL PUMPING/LIQUID SAMPLE COLLECTION Sampling Team MANDATORY ITEMS AVAILABLE ITEMS Chemically Resistant Gloves Respirator Neoprene Safety Boots Tyvek® Coveralls Safety Glasses Splash Goggles PACKAGING AND SHIPPING SAMPLES Sample Controller MANDATORY ITEMS AVAILABLE ITEMS Safety Glasses Respirator Chemically Resistant Gloves KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 21 ~AMPLE PREPARATION AND ANALYSIS Analyst MANDATORY ITEMS AVAILABLE ITEMS Safety Glasses Respirator Chemically Resistant Gloves * Not required if soil or water is not visibly contaminated, or if PID measurements of the soil samples are below 500 ppmv. 6.0 WORK ZONE ACCESS During drilling operations a work zone shall be established and roped off. This zone should include all drilling equipment and its immediate vicinity. Only authorized personnel will be permitted to enter this work zone. Authorized personnel will include those who have duties requiring their presence in the work zone, have received appropriate health and safety training, and whose background medical records may be obtained to verify that the health of that individual is not at extreme risk by his/her presence. 7.0 DECONTAMINATION PROCEDURES The Work Plan specifies initial drilling and sampling activities at areas where petroleum hydrocarbon contaminated soils, sludges, liquids and/or vapors are anticipated. Due to the volatile nature of the petroleum hydrocarbons that may be encountered during the initial drilling and sampling operations, decontamination of equipment and vehicles will be of minimal importance since the volatile hydrocarbons will rapidly vaporize. However, contaminated sampling equipment and any obvious contaminant accumulations will not leave the project site. Field team members will also KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 22 abide by the following guidelines to insure that contaminants will not remain in contact with their body. · All personnel involved in the field portion of this investigation will be · - instructed to wash their hands, face, neck and arms at the end of the workday. Krazan & Associates will assure the presence of soap, water and towels at the drilling site for this purpose. All crews will be instructed to shower at their home or lodge at the end of the workday. · No eating, drinking, smoking or chewing of gum or tobacco will be permitted in the work zone. · During this investigation, the nature of materials handled and the extent of contamination may requirE; formal decontamination procedures and delineated work/clean zones. At the discretion of the Task Leader, the following work zones and decontamination procedures will be used to minimize the transfer of hazardous substances from the site so as to protect the environment and public health. 7.1 Work Zones The field team shall prevent the uncontrolled movement of waste materials or hazardous substances from the drilling sile. The team will prevent migration of site contaminants by using the following work zones and equipment/personnel decontamination procedures. Exclusion Zone: A 30-foot circle around any given bore hole will be defined before drilling starts. In most cases, the zone will be "roped off" with an applicable barricade tape. This designated area will constitute the "Exclusion Zone". This zone is where potentially hazardous surface contaminants as a result of our investigation and physical hazards to the workers will be contained. Personal protection equipment will be required in this area according to the discretion of the Task Leader and/or in accordance with the quidelines contained in this plan. The size of the Exclusion Zone may KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 23 be changed to accommodate site conditions and to ensure contaminant containment at the discretion of the project manager, safety officer, or task leader. No personnel will be permitted into the Contamination Reduction Zone or the Exclusion Zone unless they are in full compliance with the existing Safety Plan. The buddy system must be maintained by all personnel while in this zone. intrinsically safe communications will be maintained with all personnel in this area. Contamination Reduction Zone: An area surrounding the Exclusion Zone will be defined. All personal decontamination activities will occur in this area. A waste container may be placed in this area so that contaminated disposal equipment can be placed inside and covered. Surface/soil contamination in this area may be controlled by use of some form of plastic sheeting. Support Zone: A Support Zone, must be defined for each field activity. Support personal and/or equipment is located in this uncontaminated (clean) area. Normal Krazan & Associates field uniforms are appropriate within this zone. The location of this zone depends on factors such as accessibility, wind direction, nearby rods, utilities, traffic patterns, shelter, etc .... 7.2 Decontamina¢on Pr0106¢l Decontamination of personnel and equipment will be important to ensure that contamination does not spread to others. Personal decontamination mainly involves the removal of some outer wear and good personal hygiene habits. Contamination should never by in contact with the skin. All field team members must follow this plan to ensure that contamination does not remain on equipment, sample containers or their body. All field team members should remove their personal protective clothing in a certain sequence to avoid contaminating their inner clothing or themselves. When removing personal protective equipment, the following steps should be observed: KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 24 Step 1: Remove all equipment, sample containers, and notes and non- essential items while in the Contamination Reduction Zone. Obtain decontamination solutions or a steam cleaner and decontaminate all tools and sampling equipment. Under most circumstances, all wastes and rinsates will be properly contained. Step 2; Remove outer gloves; and boot covers and place them inside a garbage bag or drum. Step 3: Remove tape from boots and gloves and remove the Tyvek® coverall (if used). Tyvek® coverall removal should be accomplished by rolling, the outside of the coverall inside itself so that only the inside of it is exposed. Boots, inner gloves, and respirator should still be worn. Step 4: Remove the inner gloves and respirator when in the Support Zone. 7.3 Personal Hyaien~ R~qluiremenl~ The following procedures should always be observed in the support zone: · All personnel must wash their hands, face, neck and forearms before consuming any food or liquids, smoking, or using the rest room. · All personnel must take a ...;hower at the end of each work day. Particular attention should be given to areas of the body that are typically overlooked. 8.0 M~NIT~RING PROGRAM Personal exposure to ambient levels of airborne hazards and noise should be monitored or observed to insure that personnel exposures do not exceed acceptable limits and for the selection of protective equipment. Airborne contamination and downhole hydrocarbon vapor concentrations will be. measured primarily by the use of a direct KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 25 reading instrument such as a photoionization detector. If concentrations approach established levels, Drager® detector tubes will be used to determine the presence and concentration of benzene. Site visits/inspections may be conducted by the Krazan & Associates Safety Officer to insure compliance with this plan. 8.1 Photoionization Detector During this investigation, the ambient air, drilling returns, soil samples, and boreholes will be screened with a calibrated H-nu® brand, portable photoionization detector (PID). The PID is a direct reading real-time analyzer that is capable of detecting most of the volatile hydrocarbons constituents present in a vapor phase. The PID to be used for this investigation uses a 10.2 electron volt lamp and is calibrated using an iso-butylene calibration gas. Iso-butylene is a relatively safe calibration gas similar in ionization potential to benzene (the carcinogen of primary concern present in petroleum products). 8.2 Dr~aer® Detector Tubes Drager® detector tubes will be used to determine airborne concentrations of benzene in the breathing zone during this investigation. A member of the field team will take detector tube readings if high PID measurements so warrant. Readings will be taken in the area where the field team members are working. Drager® #6728561 benzene detector tubes will be used (measurement range 0.5-10 ppmv). The detector tube pump will be inspected for proper operation prior to field operations. 9.0 SAFETY AND HEALTH TRAINING All field personnel will be trained in methods of safely conducting field activities. This plan is intended to provide additional site specific information to accomplish this goal. It will be the responsibility of the Project Directors, Safety Officer, and Safety Task Leader to ensure the field team has access to, reads, and KRAZAN & ASSOCIATES Project No. E89o039 Health & Safety Plan Page No. 26 understands this plan. It will be the individual's responsibility to bring to the attention of the Project Director or Safety Officer any portion of this plan and related training they do not fully understand. Prior to thE; commencement of the field portion of this investigation, the field team will meet to discuss the contents of this plan and make sure all members understand it. At the site meeting, all field team members will be instructed regarding the health and safety hazards. Especially: · Physical safety hazards. · Emergency procedures. · Explosive/flammability hazards. · The hazardous materials that may be encountered and their potential routes of exposure. · Personal hygiene practices. · The types, proper use, inspection,limitations, maintenance, and storage of protective clothing and equipment (as applicable). · In the event that the ambient air temperature exceeds 85°F, a review of heat stress symptom recognition/corrective procedures will be conducted. For an unacclimatized person, this value may be less. Special emphasis will concern the use and limitations of respiratory protection. Half-mask respirators (or equivalent) equipped with air purifying organic vapor cartridges will be used. Full-face respirators will be used if eye irritation or skin contact exposure potential exists. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 27 Medical/physical fitness requirements to wear respiratory protection, will be established by a physician, and Individuals will be trained in use limitations and maintenance of half-mask and full-face respirators including qualitative fit testing, routine inspection, replacement of parts, cleaning, disinfection, and storage requirements. Copies of this entire plan wilt be provided for each field team member at the project site, or prior to arrival. 10.0 MEDICAL MONITORING PROGRAM The field investigation at this project site is expected to involve active physical work and potential exposure to petroleum hydrocarbons, and possibly other related hazardous substances. Exposure to heat stress, noise and physical safety hazards may also be encountered. The work will require people of good health with normal vision and hearing. Krazan & Associates' industrial physician is periodically asked to provide documentation of employee medical fitness to perform the required work in the form of signed document. This documentation should also indicate the employee's ability to perform the required work while wearing a respirator. 11.0 EMER(~EN(~Y RESPONSE PLAN The emergency procedures described in this plan are designed to give the field team guidance in the handling medical emergencies, fires, explosions, and excessive emissions. These emergency procedures will be carefully explained to the field team during the on-site health and safety meeting. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 28 11.1 Iniuries Medical problems must be quickly dealt with; a road map to the nearest emergency medical facility are kept in an envelope on the dash of each Krazan field - vehicle of drill rig. The local emergency numbers are: Police: 911 Fire: 911 Paramedics: 911 Hospital: 805-327-1792 County Hazardous Materials Team 805 - 861 - 3636 Kern County Environmental Health Dept. 805 - 861 - 3637 The field team is to seek immediate professional medical attention for all serious injuries. A first aid kit will be present at the drilling site for use in case of minor injuries. If any field team member receives a splash or particle in the eye, the eye is to be flushed for 15 minutes. Clean water or a portable eye wash will be available for this purpose. Instruction will also be provided to wash any skin areas with soap and water if direct contact with contaminants has occurred. During normal field activities work clothes may become wet. If a field team member's clothing becomes saturated with an obviously contaminated liquid/sludge the possibility for dermal exposure to contaminants may exist. Under these circumstances, that field team member will change out of the contaminated clothing into clean clothing of the proper level of protection. 11.2 Fire and Explosion Hczard$ Fires are of particular concern during this investigation due to the possibility of encountering flammable petroleum hydrocarbon liquid or vapors. An adequate multi-purpose (A,B,C) fire extinguisher will be located on-site at all times. The local fire department will be notified by a Krazan & Associates representative of the location and anticipated activities in order to provide a more KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 29 timely response in the event of an emergency. In the remote chance that a fire does occur, the local fire department will be notified immediately. Additional calls to the main office of Krazan & Associates will be made. The project director would then notify the client. 11.3 Operations Shutdown Under certain extremely hazardous situations the Task Leader, Project Director, Task Safety Officer, may request that field operations be temporarily suspended while the underlying hazard is corrected or controlled. During any sampling or drilling activity breathing zone PID measurements for hydrocarbons will be performed. If these levels exceed 30 ppmv, detector tubes will be used to further quantify the benzene vapors present. If the level of benzene is detected above 1 ppmv or PID readings are consistently in excess of 100 ppmv, respirators will be required. If benzene is detected above 10 ppmv in breathing zone detector tube samples, all activity will cease until these concentrations diminish. If PID measurements above 1400 ppmv occur, a potential fire or explosion hazard may exist. Under these circumstances activities will be stopped until these levels are brought down. This may be accomplished by containerizing contaminated soils or liquids, covering contaminated soil, foam, visquene, or with clean soil to isolate the source. 11.4 Community Protection To assure the community is not affected by our investigation, upwind and downwind monitoring with the PID will be performed if the generai work area hydrocarbon levels exceed 100 ppmv. If site downwind monitoring indicates persistent levels above 300 ppmv at the perimeter of the work area, work will be shut down until PID readings drop below 30 ppmv. Alternately the exclusion zone may be expanded to provide additional community protection. KRAZAN & ASSOCIATES Project No. E89-039 Health & Safety Plan Page No. 30 12.0 RECORD KEEPING REQUIREMENT The following record keeping requirements will be maintained in the health and safety or program file indefinitely: · Copy of this Health and Safety plan · Health and Safety training certification forms · Written respiratory protection program · Respirator training certification · Any accident/illness report forms · Documentation of employees medical ability to perform work and wear respirators KRAZAN & ASSOCIATES KRAZAN ASSOCIATES, IN C. Construction Testin9 and ,,,opection Ge°technical lnvest'gati°ns ~ ~-~ _~ Environmental Engineering Monitoring Wells'~.'~,,.~.~I~ \ / j//~/v~' KRAZAN & ASSOCIATES, INC. HEALTH AND SAFETY PLAN FIELD PERSONNEL RELEASE FORM I, do hereby confirm that I have read and understand the health and safety plan for Project No. E89-039, Proposed Office Club - Costco Expansion located at Arrow Street and Gilmore Avenue in Bakersfield, California. I do agree to follow this plan, and to make every effort to make the work place safe. I will report any health or safety hazard that I observe to the Safety Task Leader, Project Safety Officer, or the Project Director. I do agree to defend, indemnify, and hold harmless Krazan & Associates, Inc., its owners, employees, representatives, clients, and the property owner for any accidents, sickness, or injuries resulting from the violation, alleged violation, or non-compliance of this of this Health & Safety Plan. Name: Title: Signature: Date:. Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 ~ Visalia ('209) 625-8251 [] Merced (209) 383-3993