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UNDERGROUND TANK FILE #2
~ .... /' . "-" · I ' .*, 15 / .... ,, , ~. '~ ( ? ..~ ,. Nell' ~5' '* ,'" Res o ~ ° :.o [__.o. ~. o " ................ [~ / ' ' SITE ~. ~,,,: ........ o i,{. o '~il _ ~ ii ~'~ ']. . o ~o , 0 '.~ 1: Lsndco ,~tr° o o o o ~ ~' '" · ' ' 'Mile 21 · ~ . · . 'X ...' (GOSFORO) Si3 7.~ ~. re c~c/~. / ~g ~15 ~,~ ~ s; ~os ~.e~s ~ ~ MI. ~' SCALE 1:24~ '"*' ' ~ . 0 "ti ~ll[. I~ 0 I~ 2~ ~ ~ ~ ~ 7~ F~ET I . 5 0 I ~llOMEf~ m m mml m .................. ,,., ...... .,,. m ~t ' -Site Location Map- .A~EnsrEtD. CA ~ Foyer nlg Valley TruCk stop . ~15~ R~ I I mm mil II I II I I I I m m m m .... il Res . '~ o . - .?o. · i! .' 0 , 0 13ell Park, '~" 'T ......... "~,.:... ..... ... ' :::::.~.,:. ~.,.:...-, . ~ :~[' ~.;.i~ = ,, ,.._: ~.?~ .,~~~o . · I - . ~ndeo / '.:. F' Mile 21- *~ (GOSFORDI 313 r a Mt. ro c~u~. ~ t9 315 21~ I SE LOS ANGELES I 12 MI. SCALE 1:24~ 1 I ~ o ' .,. -.. ..'O~CLINATION At CENT[~ Or SH[~ , QUAOR~GLE LOCATION ' . ' " M~P . git~ Location' . ~ :~. ...'. ,-'.,~..:'. ,.-- :.: :. · ... ~ :-. :.: .- ~nsr~to. ca~ ' ' ... "-*' ' - ~15~~ . eAOVANCED ENV'ONMEN,AL CONCEPT~'~. ' Inl ~CifiC"Devel°Dment" :-~ '.FIGURE"~" :' :": '" "' ~ ~, .... .- ':~, .... 'ii:; .:~-:' ~?~ :':' i:;.~-,-/:.::",.~.'.: ..... · .... ' :".~ -- ':' · 1K~~ ~ ~.: ..: : ' ' ' ~:::::::::: - ! ' :':'. . ' ':/',~ .. ' ::::,:.. ...... ' 'i :': ~ . -' ~... ,'o I · ~~ .... ' ~: ~L Sit. ':'::: .. · . .., . , .'. , ''DVANCED ~NVIRONMEN'A[ CONCEPT" ~e Mainlan~ ~Ciflc Development / ..o..x=. Foyer Big ValleY,T~CE STOP::,,'.::.?, : ' '.,' .... : :-; ~*' ' ~ .' I1'. o 399 ~ o o~ o ~tro o 21M I ~ LOS ANGELES -. SCALE 1:24~ · '.~: -~." 1~ 0 1~ 2~ ~' ~ ~ ~ 7~ rE~ ' QUAORANGL[ L0~TION Site LoCation ~Ma'p ~.., .. · 'ADV'NCED .NV.ONM~YAL CO<'''' ~" Mainlana~ciflc OevelODment ComDany..' FIGURE ~ ,.o.~x,.~ Fo~er Big.Valley ~CK StOD. '-.. " ~~,~ ~ * -- ~~ *'' -. CAFE' lonc.~ [2) 12,000 gal Diesol Tanks[~-~ , ~ alspensem (1) 1,000 gal Wasto 011 Tank (romovoa: ~91 ) . ce Asphalt Paved Yard Ama '~ (p~or lruc~ parking) ~ SUTCLIFF and DOWNEN 1'. 50' (Oll Iool mfg.) . ..- w m,. ,,~, MAINLAND PACIFIC DEVELOPMENT CO. PLATE Ni'~i~~~ (Old BIG VALLEY TRUCK STOP Site) Environmental Solutions 3115 PIERCE ROAD A Through Applied Science, Engineering & Construction BAKERSFIELD, CALIFORNIA PROJECT NUlVlBER: 380:1-3 PLOT PLAN -' fence Extent of Impacted Soils MW-2 , disp 2 di_~j~3 B-3 . NB-2 concrete I~ . . building MW-3 ". NB-4 foundation LEGEND ~-prior slant boring location (B-1 & B-2) on 1-88 · - prior boring / monitoring well location (B-3) on 1-88 O - recent boring location on 7-91 ~- recent boring / monitoring well location on 7-91 ~10"~- extent of petroleum hydrocarbon impacted soils to 10' below grade ~20"='- extent of petroleum hydrocarbon Impacted soils to 20' below grade SCA[,E . -35'"-- extent of petroleum hydrocarbon Impacted soils to 35' below grade 1" - 25' ~ .-- ~' '/ MAINLAND PACIFIC DEVELOPMENT CO. PLATE J'"=i'"'=' ~ , (Old BIG VALLEY TRUCK STOP Site) Environmental Solutions 3115 PIERCE ROAD ~ Through Applied Science, BAKERSFIELD, CALIFORNIA Engineering & Construction Nt BER: 3S0 -3 SITE PLAN 399 · '° 26 o o ~ USGS Z50ILDALE ~., ~ ~ ~ MAINLAND PACIFIC DEVELOPMENT CO. PLATE ~.~~~~ (Old BIG VALLEY TRUCK STOP Site) Environmental Solutions 3115 PIERCE ROAD -~ Through Applied Science, 1 Engineering & Construction BAKERSFIELD, CALIFORNIA PROJECT NUMBER: 3S01-3 LOCATION MAP N fence (2) 12,000 gal Diesel Tanks removed: 4/90) · Iprior ~' 0 .~ ~ '~ ' prior -- dls_E 5 d~j)6 ~ ~ Idiso 1 dis. 2 diso 3 ' disp 4 .' o ~ ~ ~ . -2 B: .~gmr~t~ ~. .......................... ~ ~ .......................... , ........ O~ ~) 1,000 ~al Wasto Oil lank (romovod: 2/01) . asphalt ~ard ,~- prior slant boring location (B-1 & B-2) · - prior boring / monitoring well location (B-3) O - proposed boring location ,~.- proposed boring / monitoring well location O - proposed soft samples @ 2' & 6' below piping (waste oll tank remOval) SCALE 1" - 25' MAINLAND PACIFIC DEVELOPMENT CO. PLATE groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) 3115 PIERCE ROAD ,~ BAKERSFIELD, CAUFORNIA environmental/geotechnical services PROJECT NUMBER: 2401-4 SITE PLAN ' N 12,000 gal Diesel Tanksr~--=--'-~' ofll¢o L dispensers 1) 1,000 gal Waste il Tank Asphalt Paved. Yard Area (prior truck parking) lence , MAINLAND PACIFIC DEVELOPMENT CO. PLATE groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) 3115 PIERCE ROAD environmental/geotechnical services BAKERSFIELD, CAUFORNIA P.OJECT NOMBE.: ~0~.4 PLOT PLAN.- t Primary Sch 4O4 399 I " Mile ~ /f~ -. MAINLAND PACIFIC DEVELOPMENT CO. PLATE gmundw, ater resources, inc. (Old BIGVALLEY TRUCK STOP Site) 3115 PIERCE ROAD 1 environmental/geotechnical services BAKERSFIELD, CAUFORNIA PROJECT NUMBER: 2401-4 'LOCATION MAP fence , Extent of ~ ,~, - ~' Impacted Soils, MW-2.~ . 0 NB-3':~ . B- I~ NB-5 NB-6 NB-2 concrete building MW-3 ) .NB-4 . foundation ,~- prior slant boring location (B-1 & B-2) on 1-88 - · - prior boring / monitoring well location (B-3) on 1-88 O - recent boring location on 7-91 ~- recent boring / monitoring well location on 7-91 ~ -10'--- extent of petroleum hydrocarbon Impacted soils to 10' below grade -20'--- extef.'t of petroleum hydrocarbon Impacted soil8 to 20' below grade ~CALE -35'--- extent of petroleum hydrocarbon ImPacted soils to 35' below grade 1" - 25' -- -- ~ ~ MAINLAND PACIFIC DEVELOPMENT CO. PLATE --~-- ~ ~ ~" (Old BIG VALLEY TRUCK STOP Site) Environmental Solutions 3115 PIERCE ROAD ~'~ Through Applied Science, BAKERSFIELD, CAEFORNIA Engineering & Construction PROJECT NUMBER: 3801-3 SITE PLAN. FILm. CONTENTS SUMMARY FACILITY: / :~ :'] "9:{} C ~'.,'~/~ ~' ~" - : PE~IT ~:, O:'~C)0 ~ ~ ENV. SENSITIVITY: Activity Date # Of'Tanks Comments ¢ ~" .. Cas.e Closure mmarv Leaking Underground. Fuel StoOge ~Tank Pre"ram' L A_~ency~lnformation _.. ,,.. ...... ,,,.~ .. ...... . II. Case 'Information .- URF filing date: ' . " ~~SNo: ' ' Responsible P~es ' I Addres~s ¢. O. ~ . ~ I~ Phone Numbem Tank No Size in Gal. j Contents Closed in-Place/Removed? i!!. Release and Site Characterization Information Is su~ ~r ~d? Ya No N~s~d ~ ~e: '.. ' R~o~(s) on file? ~ mpo~(s) Tre~ment ~d Dispos~ of Affect~ MateH~ Ma~ ~ount (Include Un~) ~~rea~ent or D~o~ w~es~o .. Tank ~ P~ing F~ Pmdu~ Gmun~ter~ B~e~ . Exhibit N Page 1 of 2 Case Closure uurr ., :: .~:~ ,;~'.~'~ ~ ;.~Leaking Undergroun~[Fue( storage Tank Program ~ --CL4Z.-- ua ~k u[easa r A/ IV, Closure Does completed corrective action protect existing beneficL~l ,ses per the R-_O!or, al Board n~__~!n Plan? ~ No Does completed corrective action protect potential bene~c~l -~_~ per the Regional Board _R~,~in Plan? ~ No Does corrective ac~on pro,eot public health for current land -_se? ('~ No ..,Site management req~;~e,~ei-.~,: ' r~ ~ Should corrective a=[~on be reviewed if land use changes? Yes ~--~ V- Local ~tative Data Name: T~e: VI. RWQCB Notification Date Submitted ~ RB: . RWQCi3 S',~ Ne-ne: .. Title: Date: VII.' Additional_ Comments Data etc. This document and ~b~: mlmr. d CA,3~ CLO~Ui~ [.E-FTE~ sbaO be rgtmned by risc k:~d a~cT, parr o[ ~b¢ ofF.:iai sim file_, Exhibit N Page 2 of 2 ENVIRONMENTAL HEALTH SERVICES DEPARTMENT STEVE McCALLEY, R.E.H.S. 2700 "M" Street, Suite 300 · DIRECTOR Bakersfield, CA 93301 (805) 861-3636 ' (805) 861-3429 FAX October'5, 1993 Calvin Okeya Mainland Pacific Development P. O. Box 661208 Los Angeles, CA 90066 SUBJECT: Big Valley Truck Stop, 3115' Pierce Road, Bakersfield, CA Dear Mr. Okeya: This letter confirms the completion of site investigation and remedial action for the .underground storage tank(s)at the above site. Thank you for your cooperati°n throughout this investigation. With the provision that 'the information provided to this agency was accurate and representative of site conditions, no further action related to the underground tank release is required based on the available information as set forth in California Code of Regulations, Title 23, Division 3, Chapter 16, Article 11, Section 2721(e) (Underground Storage Tank Corrective Action Regulations). Please c°ntact this office if you have any questions in this matter, or we can be of further assistance.. · Steve McCalley, Director ~ [ Environmental Health Servi~s4~partment SMc:MD:ch driggs\ol~eya2.1et H A Z A R ~Z)U .,S MATERI A L,SiM A.I~4 ~. G E M E N,T.---' :'''-': DATE I ACTIVITY. INITIALS TIME Dispenser #1 DispenSer #2 DispenSer #3 DispenSer #4 truck scale DispenSer~#5 ~ .~ ,:.::~$.~.-':..~..~...:p, .~.~:..:.$..'~:::: :; ::.:.~- .~:~: ..:×.:~...v~..............~.............~. ~....~ ~, ================================= :::::::::::::::::::::::::::::::::::: ul _z --25' --35' 2,400 'I'PH (diesel) ND None Detected '- ' SCALI~ ' --40' ' 1" - 10' . vertical and horizontal ~45' -' . , SM-silty sand~ ML - silts ~50' k,.. GM - gravelly silty san_.~_..~ PLATE. MAINLAND PACIFIC DEVELOPMENT COMPANY (Old BIG VALLEY TRUCK STOP Site) ~,,~--- 3115 PIERCE ROAD ~ BAKERSFIELD, CALIFORNIA Environmental Solutions · Through Applied Science, EAST - WEST CROSS SECTION DATE:10-7-91 Engineering & Construction PROJECT NUMBER: 3801-3 KERN COUNTY ENVIRONMENTAL HEALTH DEPARTMENT INVESTIGATION RECORD. DBA OWNER ADDRESS ADDRESS AssESSORS, PARCEL # CT -- CHRONOLOGICAL RECORD OF INVESTIGATION I DATE I I I I I I. I I I I i I. I ~ " ! EnvironmentaJ Health ,Se~yices Department RANDALL L. ABBOTT ~ STEVE McCALLEY, REHS, DIRECTOR DIRECTOR Ai~Pollution Control District DAVID PRICE !ii , ~~~.~/ WILLIAM J. RODDY, APCO ASSISTANT DIRECTOR '~ Planning & Development Services Department TED JAMES, AlCP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT April 27, 1992' Calvin. Okeya Mainland Pacific Development P.O. Box 661208 Los Angeles, CA 90066 SUBJECT: Location : 3115 Pierce Road, Bakersfield, CA Known As: Mainland Pacific Development/Big Valley Truck Stop Permit # : 050064 Dear Mr. Okeya: This Department has reviewed the Site Excavation Remefliation Workplan submitted by Advanced Environmental Concepts, Inc., on behalf of the above-referenced facilities. The remedial action alternative .for excavation and on-site aeration is approved. Work shall begin within 30 days of the above date'. Please notify this office 48 hours prior to the commencement of the remedial activities. If ~there are any further questions, please do not hesitate to call me at (805) 861-3636, Extension 566. ISincerely, 19fichael Dri R.':E.A. . . ggs, · ' Hazardous Materials Specialist II Hazardous Materials Management program MD:ch cc: Christian R. Bellue- Advanced· Environmental Concept, inc. File driggs~ak~ya.let 2700 "M? STREET, SUITE 300 BAKERSFIELD, CALIFORNIA 93301 (805) 861-3636 FAX: (805) 861-3429 Environmental Health Services Depam~ent RANDALL L. ABBOTT ST~V~ McCALLEY, EEHS, DIRECTOR DIRECTOR Ai, Pollution Control District DAVID PRICE I!! ' Wn. LU~ J. RODDY, APCO ASSISTANT' DIRECTOR ' Plarmin<j & Development Senfic~ Department - TED jAMF~, AlCP, DIRECTOli ENVIRONMENTAL HEALTH SERVICES DEPARTMENT November 14, 1991 Calvin Okeya Mainland Pacific Development P. O. Box 661208 '~ Los Angeles, CA 90066 SUBJECT: Location: 3115 Pierce Road, Bakersfield, California Known As: Mainland Pacific Development/Big Valley Truck Stop Permit #: 050064 Dear Mr. Okeya: Th/s Department has reviewed the Site Assessment Report submitted by RESNA 'Industries, on behalf of the above-referenced facility. The remedial action alternative for excavation and on-site treatment (aeration) is approved. A remedial action worlcplan should be received by this office within 60 days of the above date. The remedial action report, signed by a registered geologist or civil engineer, should be submitted to this office within 30 days of completion of the remediation. If there are any further questions, Please do not hesitate to call me at (805) 861-3636, · Extension 566. m~cerely, Mfchael Driggs ~~ Hazardous Materials Specialist Hazard°us Materials Management 'Program -MD/cas cc: RESNA Industries - Tom Mele File \050064-2.1tr 2700 "M" STREET, SUITE 300 BAKERSFIELD, CALIFORNIA 93301 (805).861-3636 FAX: (805) 861-3429 =ence (2) 12,000 gal Diesel Tanks (removed: 4/90) Office ' MW-2 0 E 'NB-1 2 NB-3 B~ o~ . NB-5. NB-6 ~' NB-2 0 ~ ~gD~r~t~ ~. .... O~ ~ ~ ' ' ~ :~ NB~ ~~ ~ ]{1)l'O00~alwa~t~O'lTank '(remowd:~O1) . asphalt pav~ yard ' ,t/- prior slant boring location (B-1 & B-2) I ' prior boring / monitoring Well location (B-3) O - proposed boring location ~- proposed boring / monitoring weft location O - proposed soil samples @ 2' & 6' below piping (waste oll tank removal) SCALE 1" - 25' r MAINLAND PACIFIC DEVELOPMENT CO. PLATE groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) 3115 PIERCE ROAD BAKERSFIELD, CALIFORNIA environmental/g eotechnical services PROJECT NUMBER: 2401-4 SITE PLAN 'Mainland Pacific, Pierce I~oad Bakersfield Water Monitoring Well MW-1 Well Box Cap Concrete Neat Cement · Blank Casing (52' - surface) ,, ,,, 2" PVC 40' 5' Bentonite 72' Seal 5' Perforated caSing, 2" dia 6' .020" slots (72'- 52') Water table 14' Sand pack, #2/12 Bottom. Plug Mainland Pacific. Pierce Road Bakersfield Water Monitoring Well MW-2 Box Locking Cap ,',',' ' Concrete Neat Cement Blank Casing (52' - surface) 2' PVC 38' 5' Bentonite 70' Seal 5' Perforated Casing, 2' dia 8' .020" slots (70'- 50') Water table 12' Sand pack, #2/12 Bottom Plug 8"~ Mainland Pacific, Pierce Road Bakersfield Water Monitoring Well MW-3 Well Box. Locking Cap Concrete Neat Cement Blank Casing (52' - surface) 2" PVC '40' 6' - Bentonite 73' Seal 5' Perforated Casing, 2" dia 5' .020" slots (73'- 53') Water table 15' Sand packl #2/12 Bottom Plug //~groundwater resources inc. .. ' A RESNA Company Environmental Solutions ~.~ . ~ ~ ~Ni( ~ ,xv~ ! Through Applied Science, ~ .',.'-,~,.~? ~,~, ,~ .,....~ Engineering & Construction August 2'1991 Mr. Brian Pitts · Kern County Environmental Health Services Department 2700 M Street, Suite 300 Bakersfield, Calif°rnia~ 93301 RE: Mainland Pacific Development Co. : . Big Valley Track Stop Site 3115 Pierce Road, Bakersfield · Tank Removal (A 1431-05) · Dear Mr. Pitts, Groundwater' ReSources Inc. (GRI) removed a 1,000 gallon waste oil tank from the above referenced facility on February 15, 1991. The piping system associated with the 'tank could not be sampled during the removal process because it was situated beneath a thick cover of concrete. The concrete was saw cut and soil samples were retrieved on July 25, 1991 Soil samPles were taken at depths of 2 feet and 6 feet beneath every 15 feet segment of remote piping using hollow stem auger equipment. The samples were contained in brass sleeves, sealed with teflon tape and plastic end caps, labeled, chilled, and transported under a chain of custody to SMC Laboratory. These samples were analyzed for Oil & Grease using EPA Method 9071; total lead using EPA Method 7420; and total organic halides using EPA Method 9020. There were no odors or discolorations noted in any of the samples taken at the site. Enclosed are copies of the soil sample analysis results, if you have any questions please call 835-7700. Very truly yours, - Thomas A. Mele Project Geologist TAM/tab:macpvt cc: Mr. Calvin Okeya- Mainland Pacific MAILING ADDRESS: P. O. BOX 9383, BAKERSFIELD, CA 93389 (805) 835-7700 FAX (805) 835-771 7 fence N ." '",,.'""x A T (2) 12,000 Diesel Tanks (removed: 4/90) LU office 13. ._o ~ PIPE E-2 ~ Island Area .o_ PIPE E-6 ~ c~ ;> _---- (undergoing a site assessment) PIPE C-2 __---- PIPE W-2 - PIPE W-6 ~ ---- removed WASTE OIL TANK (removed 2-15-91 ) 'LEGEND ~ - piping samples @ 2' & 6' {~-.samples taken during removal @ 2' & 6' Scale 1 ".- 20' MAINLAND-PACIFIC DEVELOPMENT CO. PLATE -- groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site). 3115 PIERCE ROAD 1 environmental/geotechnical services BAKERSFIELD, CALIFORNIA PROJECT NUMBER: 2501-2 PLOT PLAN SMC Laboratory Analytical Chemistry Client Name: Gr'oundWater Resources, Inc. Address: P.O. Box 9383 Bakersfield,~ CA 93389 Date Samples Received : 7-25-91 Date Analysis'Completed: 7-29-91 D~te of Report ~: 7-30-91 Attn: Mr. Tom Mele· Project Name' Kern Project ~: 2501-2 P.O. ~ : 6508-C RESULTS OF ANALYSIS TOTAL PETROLEUM HYDROCARBONS (Oil and Grease) sample ~' ID mq/kq MDL, mq/kq 2928 .~ pipe-w-2 ~0 5.0 2929 pipe-W-6 ND 5.0 2930 pipe-E-2 15. .5.0 2931 pipe-E-6 15. 5.0 2932 pipe-C-2 7.0 5.0 2933 pipe-C-6 14. 5.0 Method of Analysis: 418.1 ND = None Detected mg/kg = milligrams per kilogram MDL = Minimum Detection Limit ;~e{1 a Hort°n Analytical Chemist 3155 'Pegasus Drive · Bakersfield, CA 93308 · (805) 393-3597 P.O. Box 80835 · - Bakersfield, CA 93380 ,. FAX (805) 393-3623 SMC Laboratory Analytical Chemistry Client Name: Groundwater Resources~'Inc. Address: P.O. Box 9383 Bakersfield, CA. 93389 A~tention: Mr. Tom Mele .Date Samples Received : 7-25-91 Date Analysis Completed: 7-27-91 Date of Report : 7-29-91 Project Name: Kern Project ~. : 2501-2 P.O. ~ : 6508-C RESULTS OF ANALYSIS TOTAL LEAD Sample ~ ID' uqm/qm MRLcuqm/gm 2928 pipe-W-2 13. 10. 2929 pipe-W-6 ND 10. 2930 pipe-E-2 ND 10. 2931 'pipe-E-6 ND 10. 2932 pipe-C-2 16. 101 2933 pipe-C-6 ND 10'. Method of Analysis: 3050/7420 MRL = Minimum Reporting Level ugm/gm = micrograms per gram ND = none detected An~efa Horton Analytical Chemist 3155 Pegasus Drive · 'Bakersfield, CA 93308 · (805) 393-3597 P.O. Box 80835 · Bakersfield, CA 93380 · · FAX (805) 393-3623 , SMC .Laboratory Anal~ical Chemistry Client Name: Groundwater Resources, Inc. Address : .P,O. Box 9383 Bakersfield, CA 93389 Attention : Mr. Tom Mele Date Samples.Received : 7'25-91 Date Analysis Completed: 7-2'5-91 Date of Report : 7-26-91 Project Name: Kern Project ~ .: 2501-2 ~ P.O. ~ : 6508-C RESULTS OF ANALYSIS TOTAL ORGANIC HALIDES (TOX) Sample ~ ID uqm/qm MDL,uqm/qm 2928 pipe-W-2 ND 10 2929 pipe-W-6 ND 10 ·~ · 2930 pipe-E-2 ND 10 2931 pipe-E-6 ND 10 2932 pipe-C-2 ND 10 2933 pipe-C-6 ND 10 Method of Analysis: EPA 9020 MDL = Minimum Detection Level ugm/gm = micrograms· per gram ND = none detected · Ante'fa Hort°n' ~ Analytical Chemist 3155 Pegasus Drive · Bakersfield, CA 93308 · (805) 393-3597 P.O. Box 80835 · Bakersfield, CA 93380 · FAX (805) 393-3623 5400 Aldrln Court · groundwater resources, inc. - Bakersfield, Cal.ifornla 933 I 3 Telephone: (805) 835-7700 CHAIN OF CUSTODY.RECORD Tele-Fax. (805) 835.7717 LAB DESTINATION: PROJECT NUMBER:_~]-~-~-?-Z"_'__'-~)'~_ PROJECT CONTACT: '~'>/~ SAMPLER(S):. (Signatur~~ . o~ ~ .... ~~ ~ ~']~ ~ ~ COUNTY: ~ ~ LAB SAMPLE ANALYSIS SAMPLE CONTAINER NUMBER NUMBER' DATE TIME SAMPLE LOCATION ~z o REQUESTED TYPE TYPE .SPECIAL INSIRUCIIONS:_ POSSIBLE SAMPLE HAZARDS: ..... : "' ' 1. -RelinquiShed by: Date/Time: Received by- Date/Time: Relinquished by: Date/lime: Received by: Date/Time: 1. Relinquished bY: Date/Time: :.. Received by: " Date/Time: CCR (Rev. 10/89)' ~ITE: L~RATORY PlN~ JOB FILE YELLOW: S~PLE LOG fence ' ' ' ' (2) 12,000 gal D~esel Tanks ' T~ (removed: 4/90) ~ office ~ · ,~. prior B?3 dj5 1 disp 2 diso 3 o ~' 1 -2 / ~ ~/~ o_---~ ~.a..d. ~,~,<~ ,o- · (r°movod:~Ol) asphalt pav~ yard ~ prior slant boring location (B-1 & B-2) t "prior boring / monitoring well location (B-3) O - proposed boring location ~- proposed boring / monitoring well' location O - propoSedsoil samples @ 2' & 6' below piping (waste oil tank removal) SCALE 1" - 25' MAINLAND PACIFIC DEVELOPMENT CO. PLATE groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) , 3115 PIERCE ROAD ~ BAKERSFIELD, CALIFORNIA environmental/geotechnical services PROJECT NUMBER: 2401-4 SITE PLAN office d 5 c prior ~- prior' ~ ii C {1) 1,000 gal Waste OII Tank (removed: ~91) asphalt pav~ ya~ )1/- prior Slam boring location (B-1 & B-2) l - prior boring I monitoring Well location (B-3) O - proposed boring location ,~,. proposed boring I monitoring well Iosatlon O - proposed soil samples @ 2' & 6' below piping (waSte oll tank removal) 1" - 25' MAINLAND PACIFIC DEVELOPMENT CO. PLATE gr~'~oundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) 3115 PIERCE ROAD 3 BAKERSFIE .LD: CAUFORNIA enVironmental/geotechnical services PROJECT NUMBER: 2401-4 SITE PLAN RESOURCE MANAGEMENT AG 'NCY ~~ Environmental Health Services Department RANDALL L. ABBOTT STEV£ McCALLEY, REHS, DIRECTOR 'DIRECTOR Air Pollution Control District DAVID PRICE ill W~LL~.M J. RODDY, APCO ASSISTANT DIRECTOR Planning & Development Services Department TED JAMES, AICP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT HAZARDOUS' MATERIALS PERMIT #: MW 0655-05 MANAGEMENT PROGRAM : MW 0656-05 MONITORING WELL(S) PERMIT MW 0657-05 OWNER'S NAME: Mainland Pacific DATE: July 25, 1991 FACILITY NAME; Mainland Pacific FACILITY LOCATION: 3115 Pierce Road, Bakersfield, CA DRILLING METHOD: Hollow Stem Auqar ' cONTRACTOR: Groundwater Resources, Inc. LICENSE NO.: 598380 ENVIRONMENTAL CONTRACTOR Groundwater Resources, Inc. TYpE OF MONITORING WELL(S) Groundwater NUMBER OF WELLS REQUIRED' TO MONITOR FACILITY', Three (3) GENERAL CONDITIONS OF THIS PERMIT: 1. Well site approval is required before, beginning 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 inspections include: conductor casing, all annular seals, and final construction features. 3. 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. '4. Construction under this Permit is subject to any instructions by Department representatives. 5. All wells construCted of PVC located at a contaminated site where degradation may occur must' be destroyed after 2 years or prove no degradation is occurring Or has occurred. ' 6. ~ Any misrepresentation or noncompliance with required Permit Conditions or Ordinance will.result in issuance of a "STOP WORK ORDER." 7. A copy of the Department of Water Resources Driller's Report, as well 'as coPies of logs and water quality analyses, must 0e submitted to the Health Department within 14 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 conjunction with a test hole permit. 9. The permit is void on the ninetieth (90) calendar day after date of issuance if work has not been started and reasonable progress toward completion made. Fees are not refundable nor transferable. 10. I have read and agree to comply with the General Conditions noted above. This permit must be signed by either the contractor or owner. OWNER'S SIGNATURE DATE CONTRACTOR'S SIGNATURE DATE PERMIT APPROVED B Y:c,~ ~/~-~.~_ ~ DATE: July 25, 1991 LF: cas \0655-05. mw 2700 "M" sTREET, sUITE 300 BAKERSFIELD, CALIFORNIA. 9330]. (805) 86].-3636 FAX: (805) 86].-3429 L~k]ke~fiuld, Calilornie ENVIRONMENTAL HEALTH DIVISION /eon U H/be/lion, M.D. Ma~l;ng Add;e~t: 1415 Truxlun A~anue ~~~ ' DIRECTOR OF ENVIRONMENTAL HEA~TH ~ke~ield, California 93~I ~ Vernon S. Relcha~d 1805j 861-3636 , ~ ~ ~~ ~ NANAGEH~NT PROCRAM CONSTRUC?, R~CONSTRUCT, DEEPEN OR DESTROY A NELL ~ONITOR~NG' WELL APPLYCATYON AP~: PROPOSED LDORESS. I.~oo 3~ ~,~,~ ~c PHONE NO. ~Jb'~ 77~ STARTING DATE ~~,c-c~ ON APPROVED LIST (~ES ( } NO ~ROPOSED AODRESS /~'~ 5~' *,~,~ ~*c~ PHONE.NO. ~..~.?---.7 · :ONPLETION DAE ~,~.~p ON APPROVED LIST (-~YES ( ) NO .ITHOL~Y LOGGING REVIENEO BY: ~d~ /~-c~ REGISTRATION I: ~ ~C )[~TH TO GROUNDNXTER ~ ~LON DIRECTION PE~FORNED'BY: ~ ~c~& REGJSTRXT]ON I~ 5-~ 7C JO8 SITE: T R SEC. 40 ACRE SU8; )IRECTIONS TO NELL SITE: ..~-~ ~'~s~-,~ ENERLL CONDITIONS OF THE PERNIT: Permit applicaH~s must be submitted to the Health ~partment ac least 10 working days prior to t~ proposed scarring dace. .. Nell sire approval is required before beginning any ~rk related' rD well c~s&~ucrl~, lC ts ~nla~ful c~ttnue work p~s[ the stage at ~hich aa' tnsp~i~ iS r~uir~ ~]ess fAsp~ti~ iS'~afV~ O~ c~p]ec~. ~. Ocher required i~sp~H~s include: c~ductor CaStAg, all annular seals, and final c~struct~ features. 4. A P~e ca1] to the Oe~rtment office ts requtr~ ~ t~ ~rntng of t~ day t~t ~rk ts to C~ce and ~rs before the placement of any seals or plugs. ~. C~structi~ under this Permit is subJ~t to any Jnstructi~s by.Oepartm~t repr~tat~ves. ~y e~sreprese~act~ or A~-compl~nce .1th Pequtr~ Peratt C~dltt~s, or 0rd[AaAce m111 result tA of a 'Stop ~rk Order.' A copy of ~he Department of Nare~ Res~eces DMlie~'s Re~r as well as coptes of l~s and marie 'analyses ~ust be sub~it~ to the Health DeparC~r .Ithtn 14 days afte~ co~plett~ of t~ ~rk. A well de~ruc~{~ appllcaH~ ~st ~ filed .1th' thls Oe~rteent tfa .el1 ts bait,6 destroyed t~t ~s c~Jucti~ aith a test ~]e perntt. The permit ts void ~ the n~netteth (90) Calendar day after date of tssuance If work.~s not ba~ started and res~able profess to.~rd co~plett~ ~de. Fees are not ref~dable'noe transferable. [ ~ve read and egree to comply ,ich the General C~dttl~s noted a~ve. ~[R'S SI~ATURF / DATE CONTRACTOR'S SI~ATURE 'LJCAT/ON APPROVE0 BY= DATE DISTRICT OFFICES : Delano . Lemonl . Lake l/.bella . MoJive . Rldoecreel . Shelle¢ . Taft CONSTRUCTION ]NFORNATiON NELL I / NELL I ~ NELL I ~ NELL NELL DEPTH ~~~. GROUND ELEVATION ~ DEPTH TO GR~NONATER ~,OREHOLE DIAMETER ~ " ~ ,, ~ ,"r ~.AS]NG INSIDE OIA~ETER ~ ~' SCREEN NATE~IALS SEALANT ~ATE~IALS ~-~ c~ FILT[R PACK ~ATERIAL ~Q..~ ~ ~o~Y ~ ~.~-~.~4 SCREEN SLOTSIZE& 0~ / , ~/, , . ~e~ ,. -. LENGTH / ~ SEALANT PLACENENT NELL CAP L~KABLE ~.v~co ~'." ~:~ ~ACILITY PLOT PLAN - P~ovtd~ a desc¢~pt~on o~ the ~acll~ty to ~nltortng and placket, n~est street on tntersect~m, l~attm of any wate~ wells DP sueface uatees within e 500' eadJus of faeJHty. Please attach. NELL DIMENSIONS - Peovtde a detailed drawing of ,ell(s). Include: depth of we11, castn9 length, screen/ftltee pack length, annular sealants, and well 'cap. Note any Irregularities. Please attach. ZONE 0£ INFLUENCE - Provide mathematical calculations that determine the zone of influence for the sot1 FOR VADOSE ZONE NELLS at each site taking Into account the monitoring method being used. Please attach. 99 ~ MAINLAND PACIFIC DEVELOPMENT CO. PLATE groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) .3115 PIERCE ROAD environmental/geotechnical services BAKERSFIELD, CAUFORNIA P. oj~.cT N~E.: 24o~.4 LOCATION MAP office MW-2 · prior prior d ~ o & o o ,)~ _-' ~= NB-I,~ NB-20 ' O~ f__O_~' qgpAE~t~A~.MW.3 .......................... NB~ (1 ) 1,000 gal Waste Oil Tank , (removed: ~91) asphalt pav~ yard LEGEND ~. prior slant boring location (B-1 & B-2) · - prior boring / monitoring well location (B-3) O - proposed boring location ~- proposed boring / monitoring well location O - proposed soil samples @ 2' & 6' below piping (waste oll tank removal) SCALE 1" - 25' MAINLAND PACIFIC DEVELOPMENT CO. PLATE groundwater resources, inc. (Old BIG VALLEY TRUCK STOP Site) 3115 PIERCE ROAD ' ~"~ ..3 BAKERSFIELD, CALIFORNIA environmental/geotechnical services PROJECT NUMBER: 2401-4 SITE PLAN Mainland Pacific, Pierce Road Bakersfield Water Monitoring Well MW-1 Locking Cap ',',',',' ' Concrete ,,,,,,,,,,,, Neat Cement ' .~,~,?,' Blank Casing (52'- surface) ',',',',' 2" PVC 5' Bentonite 72' Seal 5' Pedorated Casing, 2" dia 6' .020" slots (72'- 52') Water table' 14' .Sand pack, #2/12 Bottom Plug Mainland Pacific, Pierce Road Bakersfield Water Monitoring Well MW-2 Well Box Locking Cap .'t't't'~'~ ' Concrete ','~'t',', ~ Neat Cement ,,,,,,,,, Blank Casing (52' - sudace) 5' Bentonite 7o' Seal 5' Pedorated Casing. 2" dia .020" slots (70'- 50') '~ ~'58' Water table 12' .Sand pack. #2/12 Bottom Plug Mainland Pacific; Pierce Road · Bakersfield Water Monitoring Well MW-3 Box Locking Cap ',',',',' ' Concrete ,,,,,,,,%,, Neat Cement ,',%',',',' Blank Casing (52'- su~ace) 6' , Bentonite 73' Seal 5' Pedorated Casing. 2". dia ' 5' .020" slots (73'- 53') Water table 15' .Sand pack, #2/12 Bottom Plug · R E C E I P T PAGE i-~7/S4/g! Invoic~ Nbr. ~ 5~86~ 10:17 am KERN COUNTY PLANNING & DEVELOPMENT 2700 'M' Strmmt (SO5) 86!-2615 CASH REGISTER GROUNDWATER RESOURCES ' Cu~tommr P.O.~ I Nth By IOrdmr Date I Ship Oat~ I Via I T®rm~ H0724gll I YKN t 07/2a/91 [ 07/24/91 lDO I NT .' ! t I t I L~r~e DescriPtion Quantity Price Unit Dime Total I 4751HAZ MAT WELLS VAOOSE ZONE 1 355.00 E 335:...00' VZW001A 2 4.751 HAZ MAT W~LLS VAOOSE ZONE AO0 2 S0.00 E 100.0.0 VZWO01$ Ord®r. Total 435.00 Amoun~ Due 435.00 Payment Made By Check 435.00 THANK YOU AND HAVE A NICE DAY! RESOURCE MANAGEMENT AGENCY Environmental Health Services Department RANDALL L. ABBOTT STE~ McCA! ! Fy, REHS, DIRECTOR DIRECTOR . . Air Pollution Control District DAVID PRICE !!i W~LUAM J. RODDY, APCO ASSISTANT DIRECTOR Planning & Development Services Department TED JAMES, AlCP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT JulY 11, 1991 Calvin Okeya Mainland Pacific Development P. O. Box 661208. . . Los Angeles, CA 90066 SUBJECT: "Location: 3115 Pierce Road, Bakersfield, CA Known As: Mainland Pacific Development /'Big Valley Truck Stop Permit #: 050064 Dear Mr. Okeya: Review of the above-referenced file reveals you have taken no action to characterize the extent of contamination at this former underground tank site. Time lines for compliance with our letter of March 12, 1991, have been greatly exceeded. Our Department's letter of April 3, 1991, explained the workplan submitted by Groundwater Resources, Inc., was acceptable with One (1) revision. It is Our Department's position that enough time has been allowed for you to proceed with action to resolve this matter. Implementation of this workplan must commence within thirty (30) · days. Failure to comply with this order may initiate legal proceedings being brought against you. Sincerely~ Hazardous Materials Specialist Hazardous Materials Management Program 'MD:cas \050064.1tr 2700 "M" STREET, SUITE 300 BAKERSFIELD, CALIFORNIA 93301 (805) 861-3636 FAX: (805) 861:3429 RESG,oRCE MANAGEMENT A L, 4CY : Environmental Health SenaCes Departn-~nt RANDALL L. ABBOTT STEVE McCAI ! Fy, REH$, DIRECTOR DIRECTOR ! . Air Pollution Control District DAVID PRICE ii1 VaLUAM J, RODDY, APCO ASSISTANT DIRECTOR Ptanning & Development Services Department TED JAMES, AICP, DIRECTOR 'ENVIRONMENTAL HEALTH SERVICES DEPARTMENT May 10, 1991 Mr. J.' R. McCann .. 3307 Redlands Drive. Bakersfield, CA 93306 RE: Enclosed Envelope Dear Mr. McCann: Please find-enclosed an envelope containing materials' that this Department attempted to mail to you in' March. For some unknown .reason, the letter has gone 'unclaimed and was returned to this Department. Please respond to the letter, in writing, within 21 days of the postmark date on this envelope. Call me at (805) 861-3636, extension 580, if you have any questions., Sincerely, Brian Pitts Hazardous Materials Specialist Hazardous Materials Management Program BP:cas Enclosure cc: McCann File mccann.ltr ~2700 "M" sTREET, SUITE' 300 BAKERSFIELD, CALIFORNIA 93301 (805) 862-3636 FAX: (805) 86:t-3429 ENVIRONMENTAL HEALTH DIVISION ~;~,,.:-, . 2700 M Street, Suite 300 P I. ~, I. q 3 ], ~ & ~ BAKERSFIELD, CALIFORNIA 93301 /4 ~"v ~ tS. POSTAGI~ I: Bakersfield, CA 93306 Environmental Health Ser~nCes Del3artment . RANDALL L. ABBOTT STEV~ McCALLEY. REH~, DIRECTOR : DIRECTOR ^i,- Pon,,,~o. Co.t.o~ o~,~ DAVID PRICE III ~j[~i~$i~ Will.lAM J. RODDY. APCO ASSISTANT DIRECTOR ~~ Planning & Deveiopmem Sewices Del3arff~ent 'I'ED JA34ES, AICP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT March 21, 1991 Mr. J. R. McCann 3307 Redlands Drive Bakersfield, CA 93306 (805) 871-6487 RE: Removal gA 1099-05. Dear Mr. McCann: On April 5, 1990, your firm, tn conjunction with Whitten Excavation, remOVed two uhderground storage tanks from Mainland Pacific' yard at 3201 Pierce Road, Bakersfield, California. On April 11, 1990, this Department received the tank tracking form for said tanks (see enclosed). This form indicates that the tanks were transported to A.M.R. for destruction. On June 22, 1990, an inspector from this Department conducted a complaint inspection at Whitten's yard. He saw approximately 30 underground storage tanks. Some of the tanks had permit numbers painted on them.. One tank had the number 1099-05 painted on it (see enclosed photocopy). This tank is one of the two tanks from the Mainland Pacific job. This is one of the tanks that the tracking form indicated was. transported to A.M.R. for destruction two months prior to the date of the complaint inspection. This incident causes this Department to question your company's procedures. Within 14 days, provide a written explanation of this incident to this Department and provide proof that this tank has been disposed of appropriately, and that procedures are now in place that will prevent future incidents of this kind. Additionally, be advised that the Whitten yard is not an 'approved disposal location. Continued procedural violations of tank removal permit conditions may constitute unfair business practices that could result in legal action being taken against you. Sincer .~y,' Brian Pitts Hazardous Materials Specialist Hazardous Materials Management Program 'BP:cas cc: A.M.R. Whit'ten ExCavation Whitten EXcavation File McCann File" \mccann.ltr 2700 "M" STREET, SUITE 300' BAKERSFIELD, CALIFORNIA 9330! '(805) 861-3636 FAX: (805) 861-3429 ~Tmr~. st.,~ 'KERN COUNTY HEALTH DEPARTMENT ~,~ OFfeR ~ ke,~C~, C. mlltemie 9330~ Te~ (~) ~t-~e E~RONME~L H~ DI~S~N * Fact l I t7 Name ~rn County Permit ~i ~rc~ nn~d ~.~i nn A '1099-05 Address 3201 Pierce R~d ' B~ersfield, CA ' · "UNDERGROUND TANK DZSPOSZTZON T~CKZNG RECO~ · · This form Is to be returned to the Kera County ilealth Department .within i4 days of acceptance of tank(s) by disposal .or, recycling facility. -Th-~. holder of the permit with number noted above is responsible for insuring that this form' is cOmpleted and returned. ' ' ;',;,JtJ ................... Sect~ou 1 - T~__be filled out ~ tank removal co r' . Address. ~ ~Tu~ ~ ~ Phone Sect o ~ 1 · u }ontr ctor ;d c n a~l a i n Authorized representative of Contractor certifies by sl~lug below that tank(s) have been decont~Inated In accordance with Kern ~ounty Health Department requirements. Sl~tur~' Title .............. ' ...... rd" .... [ ~ ~ ;d';;; ;n; ;,; ';~ '~;~ .... Section 3 - To be filled out and si~n ~ an u r z e r s a · treatment, storage, o~ ~..facillty ecceptln~ tank( Date Tanks ~~.-,':._: ~ ~ No (Authorized Represent at lye). ' ' ' Y~ILIHO INSTRUCTIONS: Fold In half and staple. RESOURCE MANAGEMENT AGENCY Environmental Health Services Department RANDALL L. ABBOTT STEV~ M¢C^~ ~ ~:V. RE~S, Dm£CTO~ DIRECTOR · Air Pollution Control District DAVID PRICE !I1 w~ J. RODDY, ~CO ASSISTANT DIRECTOR Ptannir~j & Development Ser~ces Department TED jAMES, AJCP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT April 3, 1991 . Calvin Okeya Mainland Pacific Development P. O. Box 661208 Los Angeles, .CA 90066 SUBJECT: Location: 3115 Pierce Road, Bakersfield, CA Known As: Mainland Pacific Development / Old Big Valley Truck Stop Permit #: 050064 Dear Mr. Okeya: This Department has reviewed the Site Characterization Workplan submitted, by Groundwater Resources, Inc., for the above,named facility. The workplan is acceptable for investigation of contamination at this former underground tank site, with the following revision: Reduce the number of borings by 3 or 4 without sacrificing the delineation of the contamination. These adjustments can" be made in the field once the workplan has been initiated. Please notify this Department 24 to 48 hours prior to soil sampling. After completion of sampling and analyses, a complete report describing the extent of contamination, remedial alternatives, and professional recommendations must be submitted to this 'Department for evaluation within 60 days. If you have any further questions, please call me at (805) 861-3636, extension 566. Sincerely, Michael Driggs Hazardous Materials Specialist Hazardous Materials Management Program MD:cas - cc: ~ Groundwater Resources, Inc. - Tom Mele \050064.1tr I 2700 STREET, SUITE 300 BAKERSFIELD, CALIFORNIA 9330! (805) 86L3636 FAX: (805) 86[-3429 '- ' PRINTED oN RECYCLED pAPER ' Environmental Health Services Department RANDALL L. ABBOTT STEVE McCAI ! I:V, REHS, DIRECTOR DIRECTOR Air Pollution Control District DAVID PRICE II! W~LU~M J. RODDY, APCO ASSISTANT DIRECTOR Fqanning & Development Services Department ~' TED JAMES, AICP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT March 12, 1991 Calvin Okeya Mainland Pacific Development P.O. Box 661208 Los Angeles, CA 90066 SUBJECT: Location : 3115 Pierce Road Bakersfield, CA 93308 · Known As : Mainland Pacific Development PERMIT # : 050064 Dear Mr. Okeya: This letter is an official notice to inform you that the property described above has been determined by Kern County Environmental Health Services Department to be the Site of an unauthorized release of hazardous materials from an underground storage tank.. This notice is sent to.you because our records indicate thatyou 'are a responsible party for this property. As a responsible, party, you must provide for all studies and work relating to the above-described property and the cost for oversight of these activities. California Health and Safety Code, Chapter 6.7, and Kern County Ordinance COde, Chapter 8.48, require a determination of the threat to the environment as a result of this release. THE RESPONSIBLE PARTY SHALL, ON A TIMELY BASIS, DEVELOP A SITE CHARACTERIZATION, FEASIBILITY STUDY AND REMEDIAL ACTION PLAN FOR KERN COUNTY ENVIRONMENTAL HEALTH SERVICES DEPARTMENT'S REVIEW AND APPROVAL BEFORE THE WORK IS INITIATED. Enclosed you will fhnd Attachment "A", Handbook UT-35, which states the minimum required site work plan activities, the necessary requirements for selecting environmental contractors qualified to perform this work, a glossary of terms, example illustrations, and a section discussing the answers to commonly asked questions. According to the criteria listed below and in Attachment "C", your site has been designated as environmentally sensitive. All environmentally sensitive sites are automatically enrolled into a State contract program for recovery of oversight .costs. The environmental sensitivity criteria for sites are as~follOws: 1. HigheSt historic ground water is within 100 feet of ground surface, or '2. Nearest sur/ace water in unlined conveyance is within 75 feet of tank(s), or 3. Nearest agricultural or domestic water well is within 75 feet of tank(s), or 2700 ,,M,, STREET, SUITE 300 - BAKERSFIELD, CALIFORNIA 9330! (805) 861-3636 ' '--., FAX: (805) 861-3429 Calvin Okeya March 12, 1991 Page 2 4. Facility is located in a designated aquifer recharge area, or 5. Permitting Authority determines possible adverse environmental ,impact due to facility proximity to unique wildlife habitat areas. The cost incurred by Kern County EnvirOnmental Health Services Department for the overSight of the work for the site characterization, feasibility study, remediation action plan, site remediation; and ongoing monitoring is not covered by any fees or permits. 'These costs will .be recovered by Kern' County Environmental Health SerVices Department under the terms of the State contract described below. The contract pertains only to costs associated with oversight. STATE CONTRACT The State Leaking Underground Storage Tank Pilot Program provides a meChanism for the' State to reimburse the County for County oversight. The County will conduct the necessary oversight and bill the State Water Resources Control Board under this State contract. The State will then charge You, a responsible party, for both the costs incurred .by the' County and the State, pertaining to your site, under the State terms explained below: Whereas the federal Petroleum Leaking Underground Storage Tank Trust Fund provides funding to pay the local and state agency administrative and oversight costs associated with the cleanup of releases from underground storage tanks; and Wherees the Legislature has authorized funds to pay the local and state' agency administrative and oversight costs associated with the cleanup of releases from underground storage tanks; and Where.as the direct and indirect costs of overseeing removal or remedial action at the above site are funded, in whole or in Part, from the federal Trust Fund; and Whereas the above individual(s) or entity(les) have been identified as the party or parties responsible for investigation and cleanup of the above site; YOU ARE HEREBY NOTIFIED that pursuant to Title 42 of the· United States Code, Section 699lb(h)(6) and Section 25360 of the Health and Safety Code, the above Responsible Party or Parties shall reimburse the State Water Resources Control Board not more than 150 percent of the total amount of site-specific oversight costs actually incurred while overseeing the cleanup of the above underground storage tank site, and the above Responsible Party or Parties shall make full payment of such costs within 30 days of receipt of a detailed invoice from the State Water Resources Control Board. If you should have any questions regarding this matter, please contact Susan Gonzales at (805) 861-3636, Extension 510. Sin~e ,, . . i - Environmental Health Services DepaF,ment SMC:ch Attachments colt\O50064.f WATER RESOURES CONTROL BOARD DIVISION OF WATER QUALITY. UST CLEANUP PROGRAM 'SITE SPECIFIC QUARTERLY~REPORT CONTRACTOR, NO: 15000 SOURCE OF FUNDS: SUBSTANCE:./~d3 SITE. NO: 0~0~ ~ FEDERAL EXEMPT: N PETROLEUM: Y SITE NAME: /-/'~/~/~AJ /~e,'~'¢ ~5;¢U. DATE REPORTED: 0~1'1~1~/ ADDRESS: ~.//S /::~/~C~ ,~&~' DATE CONFIRMED: CITY/ZIP: '~e~'e/~d~ ~O~ MULTIPLE R.P's: SITE STATUS CASE TYPE: ~ CONTRACT STATUS: ~ EMERGENCY RESPONSE: RP SEARCH: ~ DATE UNDERWAY: 0~/19/~l DATE COMPLETED: O~ /~/' PRELIMINARY DATE 0NDERWAY: 0~1~/91 DATE COMPLETED: O~O~/~l ASSESSMENT: REMEDIAL DATE UNDERWAY: / / DATE COMPLETED: / / INVESTIGATION: REMEDIAL ACTION: DATE UNDERWAY: ' / ~/ 'DATE COMPLETED: / / POST.REMEDIAL DATE UNDERWAY: / / DATE COMPLEIED: ACTION MONITORING: ENFORCEMENT ACTION TYPE: DATE TAKEN: TAKEN: LUFT FIELD MANUAL CONSIDERATION ~', ~, S~ ~ ~ (CATEGORY 1, 2, 3, PLUS H, S, C, A, R, W, G, OR O AS APPLICABLE) CASE CLOSED: DATE CLOSED: / / DATE. EXCAVATiON STARTED: REMEDIAL ACTIONS TAKEN: RESPONSIBLE PARTY SPECIALIST:-~ CONTACT NAME: dS/O,'~> O~cZ~, DeOa~P~ITIVITY: ~DDRESS: ~. O. ~oX g~l~O~ ABANDONMENT *:' A/~31- OS PHONE =' (~1'3)~ I-~ LEAK REPORT: Y ' RESOURCES~ INC. 1500 SO. UNION AVE. Working to Restore Nature . BAKERSFIELD. CALIFORNIA 93307 General Engineering Contractor .Cla'ss A/Haz License No.' 520768 February 25,1991 Mrl Chris Berger Kern County Environmental Health Services Department 2700 M Street, Suite 300 Bakersfield, California 93301 RE: Assessment Proposal Mainland Pacific Development Co. Old Big Valley Truck Stop Site 3115 Pierce Road Bakersfield, California Dear Mr. Berger, Groundwater Resources Inc (GRI), a RESNA company, has been retained by the Mainland Pacific Development Company to submit a site assessment proposal to the Kern County Environmental Health Services Department (KCEHSD) regarding the investigation of the extent of petroleum hydrocarbon cOnstituents in the soil and groundwater at the above, referenced facility. BACKGI~OUND The site, occupied by the Big Valley Truck Stop from 1950 to 1989, and more recently by an equipment rental company, is presently vacant and scheduled for demolition. The Big Valley Truck Stop contained two (2) 12,000 gallon underground diesel fuel tanks, one (1) 1,000 gallon underground waste oil tank, and six (6) dispenser units (refer to Plates 2 & 3). The tank systems' have been removed under permits from the KCEHSD. Future development of the property and adjacent areas will be affected by the widening of State Highway 99 which is occurring immediately west of the site. Four main topics of'conceru at this site include: the leaking of two fuel disl~ns~rs (dispenser #2 and dispenser ~) which impacted the soil and groundwater (7/87); a surface discharge of product from the eastern dispenser (dispenser ~) (4/89); the removal of two (2) 12,000 gallon diesel tanks (4/90); and the removal of one (1) 1,000 gallon waste oil tank (2/91). Fuel ~Leaks at Dispenser ~ and Dispenser #4 A representative of the KCEHSD discovered fuel puddled beneath dispenser at the site on July 9, 1987.. Preliminary assessment work performed by GRIincluded the drilling of tkree (3) borings at the site. One 25 degree slant boring was drilled under each of the subject dispensers to a depth of 20 feet (B-1 and B-2) and one boring (B-3) was a straight hole placed approximately six (6) feet north west of dispenser ~4 and advanced to a depth of 40 feet. ~ Boring B-3 was converted into a 2-inch groundwater monitoring well (refer to Plate 3). This well; however, could not be found during a recent visit to the site and it is not known if it has been properly abandoned through the KCEHSD. The soil and water analysis from samples re~eved from theborings and the well follow: - MAILING ADDRESS: P. O. BOX 9383, BAKERSFIELD, CA 93389 (805) 835-7700. FAX (805) 835-7717 ' Mr. Chris Bcrger Kern County Environmental Health Services De ~artment February 25, 1991 Page Two Borine Sample Benzene Toluene ~ Xvlenes - TPH (diesel) B-I- B1-5 .10 ND ND ND 1910 BI-10 -ND 2.5 1.2 12.8 4280 Bl-15 ND ND ND ND ND B-2 B2-5 11.8 13.7 5.3 36.75 4070 ' B2-10 11 . 22 12 43.8 2490 B2-15 ND N-D 4.3 50 3320 B2-20 ND ND 3.0 44.9 3370 B-3 B3-5 1.1 2.5 3.4 9.24 12,110 B3-10 ND ND ND ND 5260 B3-20 ND ND ND ND ND B3-30 ND ND ND ND ND B3-40 ND ND ND ND ND MW-1 MW-1 ND ND ND ND ' 950 ppb (measured in parts per million - ppm except where indicated) Additional borings are now proposed around dispenser #2 and dispenser #4 to determine the full extent of contamination identified in these areas from the initial assessment work. Borings are also proposed at each of the other dispensers at the site to identify any other potential sources of groundwater contamination. Surface Discharge ~of Product at Dispenser #6 An unauthorized discharge of diesel fuel from dispenser #6 occurred in April of 1989: The discharge was reported to the KCEHSD by the City of BakerSfield Fire Department. The diesel runoff went into the gutter of Pierce Road. The area was apparently steam cleaned and the spilled product was picked up with a vacuum track. Ms. Amy Green of the KCEHSD indicated that this area should.also be investigated during the assessment of the dispenser areas. A boring will be placed at dispenser #6 and a boring will be placed south of dispenser #6 favoring Pierce Road. The results of samples taken from these borings will help determine if additional borings will be needed in this area. The Removal of Two (2) 12,000 Gallon Diesel Tanks Two (2) 12,000 gallon underground diesel fuel tanks were removed from the site on April 6, 1990 by Whitten Excavation. Soil samples were retrieved from beneath both ends of the tanks and beneath dispensers and piping at depths of 2 feet and 6 feet. The exact locations of samples taken at the dispensers and piping; however, are not known. The results of the soil samples were re ~orted as follows: Location Benzene Toluene ~ Xylenes TPH(dieseB N.enfl of east tank 2' ND ND - ND ND ND N end of east tank 6' ND ND ND ND 24 S end of east tank 2' ND 55 - ND 31.8 62,000 S end of east tank 6' ND ND ND ND ND Mr. Chris Berger "-~ Kern County Environmental Health Services Department. February 25, 1991 Page Three Location Benzene Toluene Ethylbenzene Xylenes TPH(dieseB N end of west 'tank 2' ' ND ND ND ND ND N end of west tank 6' ND ND ND ND ~ ND S end of west tank 2" ND .15 ' ND .20 1,300 S end of west tank 6' ND ND ND ND ND Center Island 2' ND '2.1 ND 28 ' 11,000 Center Island 6' ND 1.3 ND 12.8 9,000 East Island 2' .ND ND ND ND 1,900 East Island 6' ND ND ND 1.87 19,000 West island 2" ND ND ND ND ND West island 6' ND ND ND ND ND N prodUct line 2' ND ND ND ND ND N product line 6' ND ' ND ND ND ND Product line 2' ..10 .11 ND .10 ND Product line 6' ND ND ND ND ND (measured in parts per million - ppm) Two (2) of the prOPosed borings will be placed in the vicinity of the prior tank cluster to conf'um if the pelxoleum hydrocarbon constituents identified in the soil samples taken during the tank' · removal are localized. The Removal of a 1,000 gallon Waste Oil Tank GRI removed a 1,000 gallon underground waste oil tank from the site on February 15,1991, under KCEHSD permit #A1431-05. The results of the soil samples taken beneath the tank follows: SAMPLE Oil & Crr~ase TOX Total Lead' #1 Tank 2' ND 17 ppm 7 ppm #1 Tank 6' ND 36 ppm 7 ppm Soil samples will also be retfievedbeneath every 15 lineal feet of remote fill piping (as indicated on Plate3) after the facility has been demolished (additional sampling schedule approved by Brian Pitts - KCEHSD). The site is located near the south end of the San Joaquin Valley at an elevation of approximately 404 feet above sea level. The local topography is generally level and the regional gradient trends to the south west at approximately 9 feet per mile. The Kern River channel is situated 2,000 feet east of the site. Soils logged during initial assessment work performed in January of 1988 consisted ..predominantly of sands and silty sands. Groundwater was sounded at a depth of 21.5 feet below Mr. Chris Berger Kern County Environmental Health ServiCes Department February 25, 1991 Page Four grade in a monitoring well (B-3/MW-1) located at the site. Well data supplied by the Kern COunty Water Agency (1989 Report on Water Conditions) indicated that the groundwater gradient in the · area flows to the south west and west. Three wells are proposed to determine the local groundwater gradient underlying the site. 'SOIL SAMPLING PLAN Fourteen (14) borings are initially proposed for the site in order to determine the total vertical and lateral extent of the petroleum hydrocarbon plume in the soil.' The locations of .the proposed borings are indicated on Plate 3. The initial planned depth of the borings is twenty (20) feet; however, the total depth of the borings will be determined by on-site screening of soil samples with an flame ionization detector (FID) and the soil moisture character (i.e. borings will be stopped before encountering saturated soil). The borings will be made with six inch diameter hollow stem auger equipment and undisturbed soil samples will be obtained at five feet intervals with a California split spoon sampler. Augers and sampling equipment will be cleaned after each boring. The samples will be screened with a FID meter, checked for signs of odors and discolorations, and logged using the Unified Soils Classified System. The samples will be contained in brass sleeves, 'sealed with teflon lined caps, labeled, chilled, and transported under a chain of custody to a state certified laboratory. All of the samples will be analyzed by SMC Laboratory for benzene, toluene, ethylbenzene, and total xylenes using EPA Method 8020 and total petroleum hydrocarbons (diesel) using EPA Method 5030 (GCFID). Soils brought to the surface during the drilling operation will be contained in DOT 17H drums. The drums will be labeled and dated pen.ding proper disposal. All of the boreholes will be filled with a cement grout. MONITORING WELL - WATER' SAMPLING PLAN Three (3) of the proposed borings will be converted into 2 inch diameter groundwater monitoring wells. Data acquired from these wells will be used to determine the local gradient direction, the levels and extent of petroleum hydrocarbon constituents in the groundwater, and the need for additional well placements. Well permits will be acquired from the KCEHSD prior to beginning the project The wells will be constructed using schedule 40 PVC casing; contain a discrete screened interval (.020 slot size) of 10 feet to avoid dilution of contaminants; contain a gravel pack of 2/12 sand emplaced from total depth to five feet above the screened interval; sealed with bentonite and cement grout; and covered with a locking traffic box. Monitoring of the depth to water and free product thickness will be conducted using a conductivity meter and interface probe The wells will be purged of three to five volumes using a Brainard - Kilman 1.7 inch hand pump and allowed to stabilize for 24 hours prior to sampling. The pump will be steam cleaned after each well purging and all water evacuated from the wells will be contained in DOT 17 E drums. Water samples will be retrieved from the wells using disposable bailers. The samples will be dispensed directly from the bailer into teflon capped sample bottles provided by the laboratory. Separate water samples will be taken for the volatile constituents and for the total petroleum hydrocarbon constituents. The samples will be labeled,-chilled, and transported with travel blanks under a chain of custody to SMC Laboratory. The samples will be analyzed for benzene, toluene, ethylbenzene, and total xylenes using EPA Method 602 and total petroleum hydrocarbons (diesel) using EPA Method 3510 (GCFID). A copy of GRI's Quality Assurance and Quality Control Plan is provided for your review. Mr. Chris Berger Kern County Environmental Health Services Department February 25, 1991 Page Five pgoc o g s All GRI employees have received the health and safety training required by OSHA for hazardous waste site operations (29 CFR 1910.120): While conducting the borings, personnel will be equipped with a FID meter and LEL-oxygenmeter to monitor the air for.org, anic vapors and combustible gases. Personnel are also issued air-purifying respirators 'with orgamc vapor canisters which can be donned if conditions warrant. One self-contained breathing apparatus will also be available on location. Diesel fuel constituents are the hazardous substances identified at the site. The more volatile components pose the greatest health hazard. The .quantity of volatiles liberated into the air during drilling is problematical, but probably will be less than found in the impacted soil. Under these conditions personnel will work under "Class D" protection. If odors and elevated readings are noted on air monitoring equipment, air Purifying respirators will be donned and the operation suspended until site safety is evaluated. Colorimeter tubes can be used to determine the concentrations of specific contaminants in the air. A copy of the GRI Health and Safety Plan is provided for your review. The assessment project will be performed under the direction of a state certified geolOgist following · the procedures outlined in EPA SW-846. After theproject has been performed, a report discussing the results of the soil samples and suggestions regarding remedial actions will be presented to you. If you have any qUestions or require any additional information please call (805) 835-7700. Very tru!y yours, Thomas A. Mele Dale A: Johnson, RG g4864 Project Geologist.. Director of Technical Services TAMPtab:macpvt cc: Mr. Calvin Okeya - Mainland Pacific Mr. Yong Han - RWQCB { RESNA/GRO~. q DWATER RESOURCES, INC. ,5o0 so. UN,ON ^VE. Working to Restore Nature BAKERSFIELD. CAL~IFORNIA 93307 General Engineering Contractor Class NHaz License No. 520768 HEALTH AND SAFETY PLAN GROUNDWATER RESOURCES INc. · 1500 So. Union Avenue Bakersfield, California (805) 835-7700 A RESNA Company MAILING ADDRESS: P. O. BOX 9383, BAKERSFIELD, CA 93389 (805) 835-77o0 FAX (805) 835-7717 HEALTH AND SAFETY PLAN 1.0 · PURPOSE . 'The purpose of this Plan is to assign responsibilities, establish personnel protection standards and mandatory safety procedures, and provide for contingencies that may arise while operations are being conducted at the site. 2.0 APPLICABILITY The provisions of the Plan are mandatory for all on-site Groundwater Resources Inc. (GRI) employees and subcontractors engaged in hazardous material management activities including, but not limited to, initial site reconnaissance, preliminary field investigation, mobilization, project operations, and demobilization. Subcontractors Shall provide a Health and SafetY Plan for their employees coveting any exposure to hazardous materials and shall complete all work in accordance, with that plan. The sub- contractor may choose to use'the GRI Health and Safety Plan as a guide in developing its own plan or may chose to adopt GRI's plan. In either case, the subcontractor shall hold GRI harmless from, and indemnify it against, all liabilities in the caSe of any injury. GRI reserves the right to review and approve the subcontractor's plan at any time. Grossly inadequate Health and Safety practices on thepart of the subcontractor or the belief that the subcontractor's personnel are or may be exposed to an immediate health hazard, shall be cause · for GRI to suspend the subcontractors site work and ask the subcontractor's personnel to evacuate. the hazard area. The subcontractor shall provide its Own safety eqUipment in aCcordance with Health and Safety Plan requirements. The sub- contraCtor shall comply with all regulations including OSHA 29 CFR 1910.134 (Respiratory Protection). 3.0 RESPONSIBILITIES 3.1 Safety Coordinator The SafetY Coordinator (SC) generally shall not be involved directly in onsite aCtivities. However, the SC shall provide the following functions in support of~e field activities: 1. Maintain an adequate inventory of equipment in good working Order. 2. Maintain all necessary files and 'records. 3. Ensure that all monitoring equipment is calibrated on a regular basis and that the results are properly recorded and fried. · 4. Ensure monitoring eqUipment is operating correctly and provide for maintenance if it is not. 5. Be available for consultation by the Project Manager or Safety Officer. PAGE 1 GROUNDWATER RESOURCES, INC. HEALTH AND SAFETY PLAN 3.2 Project Manager The Project Manager (PM) shall direct on-site investigation operational efforts. At the site the PM, assisted by the Safety Officer (SO), shall have the primary'~ responsibility for: 1. Ensuring that appropriate personal protective equipment is available and properly utilized by all on-site personnel. 2. Ensuring that personnel are aware of the provisions of this plan, are instructed in the work practices necessary to insure safety, and in planned procedures for dealing with emergencies~ 3. Ensuring that personnel are aware of the potential hazards associated with on-site operations. 4-. Monitoring the Safety performance of all personnel to ensure that the required work practices are employed. 5. Correcting any work practices or conditions that may result in injury or exposure to hazardous substances.. 3.3 Safety Officer The Safety Officer (SO) shall: 1. Implement project Health and Safety Plans, and report any deviations from the anticipated conditiOns described in the.plan.. 2. Ensure that all on-site personnel have a minimum of 24 hours safety ~ training. 3. Ensure that all monitoring equipment is recently calibrated. 4. Ensure monitoring equipment is operating correctly (report to Safety Coordinator if it is not.) 5. Be respOnsible for identifying all site pcrsonnel with special medical problcms.. 6. Preparing any accident/incident report. 7. Assumc any other duties as directed by the PM. 3.4 Project Personnel Project personnel involved in on-site operations shall be responsible for:. 1. Taking all reasonable precautions to prevent injury to themselves and to their fellow employees. 2. Performing only those tasks that they believe can be done safely, PAGE 2 GROUNDWATER RESOURCES, INC. HEALTH AND SAFETY PLAN and immediately reporting any accidents andXor unsafe conditions to the SO or PM. 3. Implementing the procedures set forth in the Health and Safety Plan, and reporting any deviations from the procedures described in the. Plan to the SO or PM for action. ' 4.0 BACKGROUND All personnel shall be knowledgeable conCerning the following topics on a site specific basis including, but not limited to: Site History Prior Activity Suspected Hazards 5.0 EMERGENCY CONTACTS AND PROCEDURES 5.1 Contacts Should any situation Or unplanned occurrence require Outside or support services, the appropriate contact from the following list should be made: Agency Contact Person. Telephone Police Bakersfield Police 9 1 1 Fil~ Bakersfield Fire 911 Ambulance Hall Ambulance 9 1 1 Hospital Mercy Hospital 328-5223 Project Manager Tom Mele '. 835-7700 Safety Coordinator Jon Fitch 835-7700 Safety Officer ' Tony Ramirez 835-7700 Client Contact Calvin Okeya 213/821-9229 5.2- Procedures In the event that an emergency develops on site, the procedures described below are to be immediately followed. Emergency conditions are considered to exist if: -- Any of the project personnel are involved in an accident or experiences any adverse effects or symptoms of exposure while on site; or -- A condition is discovered that suggests the existence of a situation more hazardous than anticipated. PAGE 3 . 'GROUNDWATER RESOURCES, INC. HEALTH AND SAFETY PLAN The following emergency procedures shall be followed: 1. Personnel onsite shall use the "buddy" system (pairs). Personnel shall pre-arrange hand signals or other means of emergency signals for communication in case of lack of radios or radio breakdown. The following hand signals are suggested: Hand gripping throat: out of air, can't breathe -- Grip partner's wrist or place both hands around own waist: leave area immediately Hands on top of head: need assistance Thumbs up: OK, I'm all right, I understand Thumbs down: 'No, negative 2. The Safety Officer shall establish emergency evacuation routes and shall make all project personnel aware of these routes prior to the fa'st onsite activities. In the event of an emergency, selection of the escape route shall be based on the nature of the emergency and wind direction. 3. Visual contact shall be maintained between on-site personnel. .Support personnel shall' remain in close proximity in order to assist ~ m case of emergencies. 4. In the event that any of the personnel experiences any adverse effects or symptoms of exposure while on site all personnel shall immediately halt work and act according to the instructions provided by thc Safety Officer. 5. Wind indicators, visible to all on-site personnel, shall be provided by the Safety Officer to indicate possible routes for upwind escape. 6. The discovery of any condition that would suggest the' existence of a situation more hazardous than anticipated shall result in the evacuation of the on-site personnel and re-evaluation of the hazard and thc level of protection, required. 7. In the event that an accident occurs, the SO shall complete an Accident Report Form for submittal 'to the Safety Coordinator (SC). The SC shall initiate action to correct the sitUation that caused the accident. PAGE 4 GROUNDWATER RESOURCES, INC. HEALTH AND SAFETY PLAN 6.0 HAZARD CHARACTERISTICS, MONITORING METHODS AND PROTEC- TION REQUIRED All personnel shall be knoWledgeable concerning the following topics on a site Specific basis including, but not limited to: Exposure Limits Recognizable Characteristics Symptoms of Overexposure Potential Chronic Effects First Aid Treatment - Monitoring Methods Action Levels Protection Measures 7.0 STANDARD SAFE WORK PRACTICES 7.1 General 1. Eating, drinking, chewing gum or tobacco, and smoking shall be prohibited in the contaminated or potentially contaminated area or where the possibility for the transfer of contamination exists. '2. ..Avoid. contact with potentially contaminated~substances. Do not walk through puddles, pools, mud, etc. Avoid, whenever possible, kneeling on the ground, leaning or sitting on equipment or ground. Do not place monitoring equipment on potentially contaminated surface (i.e., ground, etc.). 3. All field personnel shall make use of all their senses to alert them to potentially dangerous situations which they should avoid (i.e. presence of strong, irritating or nauseating odors). .4. Prevent spi_ll_ages to thc extent possible. In thc event that a spillage occurs, contain liquid immediately. 5. Prevent splashing of thc contaminated materials. 6. Field personnel shall bc familiar with thc physical characteristics of thc investigation site, including: wind direction Accessibility to associates, equipment, vehicles Communications Hot zone (areas of known or suspected contamination) Site 'access Nearest clean water sources PAGE 5 GROUNDWATER RESOURCES, INC. HEALTH AND SAFETY PLAN 7. The number of personnel and equipment in the contaminated area shall be minimized, but only to the extent consistent with workforce requirements of safe site operations. 8. "All wastes generated during on-site activities shall be disposed of in acCordance with all .applicable laws and regulations. 7.2 Excavation and Well Installation Practices For all excavation and well installation activities, the following standard safety procedures shall be employed: 1. All equipment shall be cleaned before proceeding to site, and after the excavation and/or well installation has been completed. 2. OnlY the minimum number of personnel necessary to achieve the objectives shall be within 25 feet of the excavation and/or dri_!!ing activity. 3. If the emergency and backup subconu'acted personnel are at the site, they shall remain 25 feet from the excavation and/or drilling activity,. where practical. 4. Exclusion zones shall be established with designated hot lines. Delineation of a hot line shall reflect the interface between areas at and below a predetermined threshold contaminant concenuafion ' based on available data. This determination shall be made by the Safety Officer. 5. All unauthorized personnel shall remain outside exclusion zones at all times. t 8.0 SITE SAFETY PLAN The personnel on site will be equipped with a draeger PA-gO air pack, gastech D-11 vapor testor or an equivalent, a photoionization meter, fire extinguishers and any additionally required equipment for health and safety considerations. PAGE 6 GROUNDWATER RESOURCES, INC. RESNA/GROU B/ATER RESOURCES, INC. 15oo so. uN,oN AVE. Working/o Res/ore Nature BAKERSFIELD. CALIFORN A 93~7 General Engin~ring ~n~act~ Class ~H~ License No. 5~768 GROUNDWATER'RESOURCES INC./A RESNA COMPANY Quality Assurance .~nd Oualit¥ ~.ontrol Plan The Remedial~Investigation (RI) Quality Assurance/Quality Control (QA/QC) program is intended to facilitate the acquisition .of accurate and reliable data. Environmentaldata gathered during the RI will be collected and analyzed following procedures prescribed in the Quality Control-Program.. A Quality Assurance Program has been established to· assure that the Quality~ Control Program is effective. Both.programs are necessary to provide accurate data and documentation for investigations and laboratory analyses.' The following field and laboratory procedures will be implemented to ensure that QA/QC objectives.are met. 1.0 RECORDING OF FIELD DATA Ail information pertinent to the field investigation will be kept in a field log book.' Information to be documented includes at least the following:. - Sample number - 'Locations of sample collection - Soil boring or well numbers, as applicable - Depths at which samples were obtained - Names of collectors. - Dates and times of collection - Purpose of sample -Sample distribution (e.g.,~laboratory, archive, etc.) -- Field observations - Field measUrements (e.g., PID readings, ph, conductivity, water levels). - Other data records (e.g. development log, soil sampling report, well log, etc.) MAILING ADDRESS: .P.O. BOX 9383, BAKERSFIELD, ca 93389 (805) 835-7700 FAX (805) 835-7717 2.0 SAMPLE CONTAINERS Groundwater samples willbe placed in-containers 'suPplied by the analytical laboratory~ Table 1 summarizes the required sample containers.'' Soil samples will be collected in either 8-once widemouth clear glass jars provided by the laboratory or in clean brass or stainless steel tubes (Table 1). Screw on caps will be fitted with teflon liners. Tubes wilI be tightly capped and sealed. 3.0 QUALITY CONTROL FIELD SAMPLES A QC 'program independent from the laboratory,s program will be instituted. The program entails "blind" s~bmittals to the laboratory of blank and duplicate samples. No spiked samples will be supplied from the field for this investigation. The laboratory in-house QC program willinclude analysisof spiked samples. All QC samples will be assigned independent sample numbers and made indistinguishable from non QC samples. When sampling groundwater, travel blanks will be used to detect the introduction of contaminants during transportation from the field to the laboratory. The travel blanks'will be provided by the analytical laboratory. They will be taken to the field and accompany the collected groundwater samples to the. laboratory for analysis. The blanks will Consist of deionized water and analytically confirmed organic-free water. The blank is numbered, packaged, and sealed in the same manner as the other samples. Ten percent, of the water samples submitted to the laboratory for analysis will be duplicates. Water sample duplicate will be created be filling two sample bottles from the well bailer. If more than one bailer volume is required, each bailer volu~e. will be split between containers. 4.~ SAMPLE PRESERVATION Sample containers will be pre-cooled and transported to the site-'in the cooler. Ail samples will be'preserved as indicated on Table 1 and Placed in a cooler immediately after collection. Chemical ice sealed in plastic bags will be used in 'the cooler to cool and maintain samples at a temperature of 4 degrees celsius. A high-low thermometer will accompany the samples to document transport conditions. Further discussion of sample preservation is included in the sampling protocOls (Sections 11 and 12). 5.0 CHAIN-OF cuSTODY PROCEDURES 5.1 S.ample Labels Each sample container will be labeled prior to filling to prevent misidentification. The label will contain at least the following information: - .Sample number~which uniquely identifies the sample - Project title or number· - Location of sample collection - Soil boring or well number, as applicable - Name of collector - Date and time of collecti°n - Type of analysis requested 5.2 ~hain-°f-Custody ReCord ~andSample Analysis Request For~ A chain-of-custody record for each container or sample will be used to track possession of the samples from the time they were collected in the field untill the time they are analyzed in the laboratory. The chain-of-Custody record will contain the following information: '1. Site Name 2. Signature of collector 3. Date and time of collection. 4. Sample identification number(s) 5. Number of containers in sample set 6. Description of sample and container(s) 7. Name and signature of persons, and the companies or agencies they represent, who are involved in the chain of possession 8. Inclusive dates and times of possession 9.. Requested analysis for each sample 5.3 .Delivery of Samples to Laboratory Samples will be delivered to the laboratory on adaily basis. Samples will be refrigerated to approximately 4 degrees· celsius for shipping. Shipping containers'will be sealed with. security tape· to assure sample integrity during shipping. Delivered samples will be accompanied by a chain-of-custody record. The laboratory, shall note on the chain-of-custody that ·samples were properly preserved and security tape was intact upon arrival. 6.0 SAMPLING AND DRILLING EQUIPMENT DECONTAMINATION All equipment used for drilling and sampling will be decontaminated prior, to use° All equipment used for Collection of more than one sample, such 'as' bailers and spoons, will be decontaminated between eaCh use to prevent cross contamination between samples. Drilling equipment will be decontaminated'prior to commencing drilling at each hole. -Well construction materials will be cleaned as necessary, prior to installation. Equipment and well material decontamination will be conducted on an impermeable surface and all decontamination effluent will be contained. Ail surfaces of the equipment will be thoroughly decontaminated using a steam cleaner. The equipment will be placed on a drying rackfor air drying. 'The decontamination water will be stored in containers certified for hazardous materials storage and disposed of'in an approved manner. Sample .equipment to be used for Pesticides and organic analysis will be washed in nonphosphate detergent (Alconoxor equivalent).and rinsed with tap water,.followed by deionized water and finally with acetone. If the equipment is for metals analysis, the initial rinse will by conducted with 0.1 N nitric acid followed by tap water and.deionized water. 7.0 FIELD EQUIPMENT CALIBRATION AND MAINTENANCE The following measuring equipment may be used during the Remedial Investigation. Equipment' is grouped by field activity. Calibration procedures and frequency are listed for each piece. Soil Borings '.and ~ell Dimensions - Steel and coated cloth tape.' Calibration: none. Water Level' Measurements ~.n Wells - Steel surveyors tape. Calibration:. manufacturer supplied temperature correction will be applied as applicable for 'field conditions. Electrical well sounders. 'Calibration: Check against steel surveyor,s.tape. ~Va__~.g_~- Photoinization detector. Calibration: Daily field Calibration using an isobutylene standard as per manufacturers instructions. Groundwater PH. Measurement- Digital pH meter. Calibration: standard pH solutions of .4, 7, and 10 will' be utilized for daily field calibration according to. manufactUrers instructions. Electrical gonductivit¥ - Electrical' conductivity meter. 'Calibration: Factory-calibrated .annually and periodically calibrated, against laboratory prepared standard calibration solution. Water Temperature - ~ Mercury or digital thermometers. Calibration: Factory~calibrated once. Combustible asO~ - Combustible gas/oxygen meter calibration: Factory calibrated, field calibrated- monthly, zeroed daily according'to manufacturers instructions. Miscellaneous Measuring Devices - Calibration procedures for any other measuring deVice used will be documented at the request of the regulatory authority. All equipment will be checked daily and replaced as necessary. Instrument manuals and an instrument log book will accompany equipment into the field. Any calibration, repairs or related information will be recorded in the log book~ S.0 LABORATORY QA/QC PLAN Soil and groundwater samples' will be submitted to .a' State Certified Hazardous Waste Laboratory for chemical analysis of hazardous constituents. Established QA/QC procedures for analytical operations will include sample custody procedures,standards of analytical accuracy, analysis of matrix spikes and method blanks, data reduction, verification of raw analytical data, and maintenance of control charts to monitor analytical performance. These QA/QC procedures are outlined in the laboratory QA/QC Plan which is available upon request. Organic chemical analyses will be. performed in conformance with standard procedures established by the United States Environmental Protection Agency (EPA) in "Guidelines Establishing Test Procedures for the Analysis of Pollutants Under the Clean Water Act" (40 CFR Part 136, October 1984).The laboratory is periodically evaluated through external performance audits conducted by EPA and DHS using QC labs. The specific analytical methods to-be utilized for purgeable and semiVolatile hydrocarbons analyses are shown on Table 2. Provided the data base is of sufficient size,, statistical techniques.may be employed for data validation. 9.0 GROUNDWATER'MONITORING PROTOCOL Monitoring'of depth to water and free product thick, ess within wells at the site will be conducted using an Interface Probe or conductivity meter. For consistency, all measurements will. be taken from the north side of the wellhead.at, the survey mark. To assess potential infiltration of fine grained sediments, total well depth will'also be sounded. Product thick~ess is calculated by subtracting the depth'to product from the depth to water. In addition, water elevations are adjusted for the presence of fuel with the following calculation..'. (Product ThiCkness) (0.8) + (Water Elevation) = Corrected Water Elevation Note: 'The factor of 0.8 accounts for the density difference betWeen water'and petroleum hydrocarbons. Newly installed wells will be allowed to stabilize for 24 hours after development prior to free product inspection. An acrylic Surface Sampler will be used for viSual'inspection of the groundwater in order to note sheens ~(difficult to detect with the Interface Probe), odors, microbial action and sediments. The sampler is' calibrated in .inches and centimeters for visual inspection of product thickness. To reduce the potential for cross contamination between wells,. the monitorings will take Place in order from the least to the most contaminated, if known. Wells containing free product will be monitored last. Between each.well monitoring the equipment will bedecontaminated. Water level data collected from the wells wil1 be used to develop a groundwater contour map for the project site. Groundwater flow. will be estimated to be perpendicular to eqUipotential lines draWn on the map. 10.0 WELL DEVELOPMENT PROTOCOL Groundwater monitoring wells will be surged and developed prior to.setting the surface seal. Approximately 10 times the volume of water in the casing will be withdraWn if possible. Casing volumes will be calculated in the following manner: Volume of Schedule 40 PVC Pipe. Diameter I.D. Volume (inches) (inches) Gal/linear ft. 2 2'067 0.17 4 4.026 0.66 'Volume of Open Borehole and Annular Space Between Casing and Hole Volume/ Hole linear ft. Nominal linear ft. of* Diameter of hole casing Diameter Annular Space (inches) Gal. Cu. Ft. (inches) Gal. Cu. Ft. 7.25 2.14 0.29 2 1.91 0.26 8.25 2.78 0.37 2 2.55 0.34 Volume/ Hole linear ft. Nominal ' linear ft'. of* Diameter of hole casing Diameter Annular Space · (inches) Gal.. Cu. Ft. (inches) Gal. Cu. Ft. 10.25 4.29 0.57 2 4.06 0.54 10.25 4.29 0.57 4 3.46 0.'46 12.25 6.13 0.82 4 5.30 0.71 *Note: Annular Volumes will be multiplied by 30% to account for porosity of filter pack. If the.aquifer is slow to recharge, development will continue until recharge is too slow. to practically continue. The volume of water produced, versus time, will be recorded. Ail withdrawn'groundwater will be stored on-Site in 55 gallon waste drums unless permission is granted by the appropriate regulatory agency to discharge the water to the ground surface or sanitary sewer. Drummed water will be labeled with the source of the water to help ensure appropriate disposal based on contamination levels. 11.0 SOIL SAMPLING PROTOCOL 11.1 Sample Collection During Drilling ActiVities A proposal will be sUbmitted to the lead Regulatory Authority with proposed bOring/sampling locations. The exact location and number of borings at each site will be determined in the field by the Project Geologist/Engineer. ' Prior to arriving at the sample site,'the drill rig/augers will be steam .cleaned and all sample equipment will be cleaned. 'Cleaning will be conducted on-site on all sampling equipment between each sample interval. Soil samples will be obtained using a California modified split-spoOn sampler containing three, six inch long, two inch diameter brass tubes. The sampler will be driven 18 inches ahead of the hollow stem auger by a 140 pound hammer with a 30 inch drop in accordance with American Society for Testing and Materials (ASTM) Methods D 1586-84 for split barrel sampling of soil and D 1587-.83 for thin-walled tube Sampling of soils'. The blows required to drive, the sampler each six inch interval will be' recorded on the boring log. The-sampler will be removed from the boring and opened to reveal the brass tubes. The.bottom tube will be sealed with aluminum foil and Plastic end caps, taped and labeled with the following information: date, time, project ID, sample ID, name of '. sampler and type of 'analysis. This sample will be immediately placed into a cooler containing dry ice or frozen chemical. A "high-low" temperature recording thermometerwill accompany sample shi'pments to ensure proper temperature maintenance. The samples Will be delivered to a state certified laboratory following under chain-of~custody protocol within 48 hours of sampling, whenever possible. Soil in the uppermost brass tube will be described according to ASTM standard practice for description and identification of soils (ASTM D-2488-84). Stratigraphic, genetic and other data/interpretations will also be recorded.. Soil properties may also be determined from the middle brass tube and from the sampler shoe. Alternatively .the second sample tube may be used with the uppermost tube for preparation of duplicates. These field observations will be noted on a log prepared for each boring/well. During sampling, l~tex gloves will be worn to prevent cross- contamination with other samples. The disposable gloves will be discarded after collecting samples from each 18-inch sample drive. ' Soil samples will be collected at five foot intervals, at significant changes in lithology and intervals of obvious contamination in order to develop a complete profile' of soil contamination. 11.2 $.amDle Collection During Tank Removal Soil. samples will be.collected as soon as possible after removal of the tank. Where feasible, all preparations for soil sampling, will be made prior to tank removal. Soil samples collected from a backhoe bucket or directly from the excavation floor will be collectedin a thin-walled stainless steel or brass cylinder at least three inches long by one inch in diameter. From 3 to 24 inches of soil will beremoved from the immediate surface area where the sample is to be taken and the cylinder then pounded into the soil with a wooden mallet, bulk density driver, or other' decontaminated driving device. No head space will be-present in the cylinder once the sample is collected. Care will be taken .to avoid contamination of both the inside and outside Of the cylinder as well as its contents. During sampling, latex gloves will be worn to prevent cross contamination with other samples. One pair'of disposable gloves will be'dedicated'to each sample collected. Once the sample is collected, each end of the cylinder will be sealed with aluminum foil or teflon tape and then capped with a polyethylene lid,.taped, and labeled. The sample will then be individually sealed in a ziplock bag and immediately placed in an ice chest containing dry ice or frozen chemical ice 'for delivery to a state certified laboratory. Sample identification, storage and transportation will be conducted as outlined in the.previous section. 11.3 Sampling' from Soil Piles or Shallow Soil Pits Soil'Samples will be collected and transported.from excavated material~ in the manner described in the previous-section, however, a backhoe will not be utilized. If composite samples are'collected, four brass cylinders will be collected for every~ 50 cubic~ yards of material to be sampled unless otherwise specified by the lead regulatory agency. The samples will be composited by the state certified analytical laboratorypersonnel prior to testing. 12.0 GROUNDWATER SAMPLING PROTOCOL Prior to arriving at the sampling site, all sampling'equipment will be washed with laboratory grade detergent, and rinsed twice with tap water, once with acetone, and once with deionized water.. This procedure will.be carried out on-site before sampling of other'monitoring well, if more than one well is to be sampled with the same sampling device. Immediately Prior to sampling, the depth to water (DTW) in the wellwill be recorded. The thickness of product on top of the groundwater, if present, will be measured using an interface probe. 'The procedure for monitoring is presented in Section. 9.0 (Groundwater Monitoring Protocol). If free product is'detected, analysis of groundwater at the interface for dissolved product will not be conducted. A product sample.will be collected for source identification. If all free product cannot be removed, an' interval specific sampling device may be utilized to collecta sample from below .the zone of free product. Before collecting at least two groundwater samples from each well, the well will be purged until indicator parameters (temperature, conductivity and stabilizel This will entail the removal of at least four well casing volumes bY bailing or pumping. The criteria for determining, well casing volumes and temporary storage of purged water'is outlined Section 10.0, (Well Development Protocol). The indicator parameter measurements will be taken both before and after purging of each well casing volume. Once the well. is purged and indicator parameters have stabilized, 'a sample will be collected after the water level approaches 80 percent of its initial elevation. Where Water level recovery is slow, the sample will. be collected after stabilization is achieved and enough water is present to fill sample containers. CroSs contamination from transferring pumps (or bailers) from well to well will'be avoided by utilizing dedicated equipment. Where this is not feasible, thorough cleaning of equipment will be performed between sampling rotmds. Sampling will proceed from the least contaminated.to the most contaminated well, if information is available before sample collection, or if it is. indicated by. field evidence. Where several types of analysis will be performed for-a given well, individual samples will be collected in the following order: 1. Volatile organics 2. Purgeable organic carbon 3. Purgeable organic halogens. _ 4. Total organic carbon 5. Total organic halogens 6. Extractable organics 7. Total metals '8. Dissolved metals- 9. Phenols' 10. Cyanide'~ The specific analytical methods to be utilized for the common volatile/Semivolatile to analyses are shoWn on Table 2. Groundwater samples will be collected with a teflon bailer with~ bottom emptying device. Duplicate 'samples will be transferred to Vials or containers that meet Regional Board specifications (Table 1). Groundwater from the bailer will be transferred to the sample container by allowing the fluid to flow slowly along the sides of the vessel. Ail containers will be filled above the top of the opening to form. a positive meniscus. No head space 'should be present in the sample ~container once it is sealed. After the vial is capped it will be inverted to check for air bubbles. .If bubbles are present the sample will be discarded and replaced. If.it is not pOssible to collect a sample without head space, the problem will be noted on the field technician,s sampling log. Immediately following sample collection, samples will be labeled and stored in an ice chest containing frozen chemical ice sealed in Plastic bags. Sample labels will contain the following information: .date,. time, project ID, sample ID, name. of sampler and type of analysis. Ail samples will b~ transported under chain-of-custody protocol to a state certified laboratory within 24 hours. A sample container filled in the laboratory with organic free water and carried unopened during thesampling trip will also be provided (Trip Blank). A "high-low" temperature recording thermometer will accompany sample shipments to ensure proper sample temperature maintenance. y prava=e, carrier. Analytical holding times will be considered in determining sampling and shipping schedules. Friday shipment/ Saturday laboratory receipt of samples will be coordinated in advance with the laboratory. Table l Holding Times and Preservation Holding Parameter HaCrLx ' Comte?nar T~ne ' ................... ~ ................................... Preservation Total Petrol. ~0l! 3' ata/fllees steal 14 daTsl/ HTd roaarbona .~ 4 or braes cylinder. 40 days2/ (L~ght Fractions) gazer 40 el glass, v~al, te~l°n'taaed aLILcon 20 data2/ to pH 8eptue (HeavF Fractions) Vater I laber bottles, teflon eeal/a~lLcon 40 data2/ Benzene 9eLf 3' atatn~eoe steel Toluene xyiene or brlns cT~Xnder. teflon ilia/ii,icon ~4 days3/ ,to pH · 2 Halocarbonl ~ ' or brain ViCar 500 el glai'a vial, CeYlon eea~/allAcon leptum or brass 'cyZLndor ' .. rater 40 al glees vial, 14 deyll/ 4'C · carlos leal/a~llcon · or braes cyZLnder teflon faced ILILcon oeptun PoZynuoZeer SeLf 8 of, uLde mouth ~4 deyl~/ AromacLo 4 · . glass vLth teflon 40 dayl2/ Hydrocirbonl Vitlr lO00 il alber easel 7 dl~ll/. vLCh Carlos asea 40 1500 SO. UNION AVE. Environmental Solutions BAKERSFIELD, CALIFORNIA 93307 Through Applied Science, General EngineeringContractor Engineering & Construction Class A/Haz License NO. 609572 i Mr. Mike Driggs Kern County Environmental Health Services Department 2700 M Sureet, Suite 300 Bakersfield, California 93301 RE: Big Valley Truck Stop 3115 Pierce Road Bakersfield, California Dear Mr. Driggs, Enclosed is a copy of the Site ASsessment Report regarding the above referenced facility. The results of the assessment indicated that a'plume of soil impacted with diesel fuel constituents having a maximum vertical extent of 35 feet below grade, a (east-west) lateral. extent of 65 feet, and a (north-south) lateral extent of 38 feet exists near the prior dispensers at the subject site. Ground water, presently situated at 58 feet below grade, did not contain any petroleum hydrocarbon constituents. Recommendations regarding remedial actions are included in the text. If you have any questions or require any additional information please call (805) 835-7700. Very truly yours, '~/~~ ~.~ ~_ Thomas A. Mele Project Geologist MAILING ADDRESS: P. O. BOX 9383, BAKERSFIELD, CA 93389 (805) 835-7700 FAX (805) 835-7717 MAINLAND PACIFIC- Big Valley Truck Stop 3.2 Monitoring Well Installation - Water Sampling Three (3) of the borings .(MW-1, MW-2, and MW-3) were converted into 2 inch diameter ground water monitoring wells. The wells were 'constructed using schedule 40 PVC casing and contain a screened interval (.020 slot size) of 20 feet, a gravel pack of 2/12 sand emplaced from total depth to approximately five feet above the screened interval, a bentonite and cement grout seal, and covered with a locking traffic box. The three (3) monitoring wells were purged of approximately five volumes using a Brainard - Kilman 1.7 inch hand pump and allowed to stabilize for 24 hours prior to sampling. The pump was steam cleaned after each well purging and all water evacuated from the wells was placed into DOT 17 H drums.. Water samples were then retrieved from the wells using disposable bailers and dispensed directly from the bailers into teflon capped sample bottles provided by the laboratory. Separate water samples were taken for the volatile constituents and for the total petroleum hydrocarbon constituents. The samples were labeled, chilled, and transported With travel blanks under a chain of custody to Applied Analytical. 4.0 DISCUSSIONS OF FINDINGS 4.1 Boring Descriptions Boring NB-1 was placed directly south of dispenser gl and advanced to a total depth of 45 feet below grade. Soil samples retrieved from this boring contained petroleum hydrocarbon constituents to a depth.of 35 feet below grade. Samples taken below 35 feet to a total depth of 45 feet below grade did not contain detectablepetroleum hydrocarbon constituents. Boring NB-2 was placed directly south of dispenser//2 and advanced to a total depth of 30 feet below grade. Soil samples retrieved from this boring contained petroleum hydrocarbon constituents to a depth of 20 feet below grade. Samples takeh below 20 feet to a total depth of 30 feet below grade did not contain detectable petroleum hydrocarbon constituents. Boring NB-3 was placed directly south of dispenser #3 and advanced to a total depth of 20 feet below grade. Soil samples retrieved from this boring contained petroleum hydrocarbon constituents to a depth of 10 feet below grade. Samples ' ' taken below 10 feet to a total depth of 20 feet below grade did not contain detectable petroleum hydrocarbon constituents. Boring NB-4 was placed directly south of dispenser island #4 and advanced to a total depth of 20 feet below grade. Soil samples retrieved from this boring did not RESNA INDUSTRIES OCTOBER 17, 1991/Page 2' MAINLAND PACIFIC - Big Valley Truck Stop contain detectable petroleum hydrocarbon constituents. Boring NB-5 was placed directly south of dispenser #5 and advanced to a total depth of 20 feet below grade. SOil samples retrieved from this boring did not contain detectable petroleum hydrocarbon constituents. Boring NB-6 was placed directly south of dispenser #6 and advanced to a total depth of 20 feet below grade. Soil samples retrieved from this boring at a depth of 5 feet below grade contained petroleum hydrocarbon constituents; however, additional samples taken from 10 feet to 20 feet below grade did not contain detectable petroleum hydrocarbon constituents. Boring MW-1 was placed west of the prior underground tank cluster and 15 feet north of the prior site building. It was advanced to a total depth of 72 feet below grade and completed as a 2" diameter ground water monitoring well. Soil samples retrieved from this boring at depths of 20 feet and 30 feet below grade did not contain detectablepetroleum hydrocarbon constitUents. The water sample retrieved at a depth of 58.70' below grade did not contain detectable petroleum hydrocarbon constituents. Boring MW-2 was placed 12 feet north of prior dispenser island #4. It was advanced to a total depth of 70 feet below grade and completed as a 2" diameter ground water monitoring well. Soil samples retrieved from this boring at depths of 20 feet and 40 feet below grade did not contain detectable petroleum hydrocarbon constituents. The water sample retrieved at a depth of 58.55' below grade did not contain detectable petroleum hydrocarbon constituents. Boring MW-3 was placed 12 feet east of the prior site building and 20 feet south of dispenser island #1. It was advanced to a total depth of 73 feet below grade and completed as a 2" diameter ground water monitoring well. Soil samples retrieved from this boring at a depth of 10 feet below grade contained petroleum hydrocarbon constituents; however soil samples taken at 20 feet, 30 feet, and 40 feet below grade did not contain detectable petroleum hydrocarbon constituents. The water sample retrieved at a depth of 58.50' below grade did not contain detectable petroleum hydrocarbon constituents. 4.2 Laboratory Analysis of Soil Samples The soil samples retrieved from the borings performed at the subject site were analyzed for benzene, toluene, ethylbenzene, and total xylenes using EPA Methods 5030/8020 and for total petroleum hydrocarbons as diesel using EPA Methods 3550/8015. The results of the soil sample analyses are listed below in parts per RESNA INDUSTRIES OCTOBER 17, 1991/Page 3 ~-~ MAINLAND PACIFIC - Big Valley Truck Stop million (ppm)or as "ND-Not Detected": SAMPLE Benzene Toluene ~ Total Xylenes TPH (diesel) NB-l-10 ND ND ND 0.69 2,600 NB-l-20 ND ND ND 1.2 2,300 NB-l-30 ND ND ND 0.90 5,200 NB-l-35 ND ND ND ND 130 NB-l-40 ND ND ND ND ND NB-l-45 ND ND ND ND ND NB-2-10 ND 0.1 0.8 3.0 11,400 NB-2-20 ND ND ND ND 2,900 NB-2-30 ND ND ND ND ND NB-3-5 ND 0.2 0.9 3.2 9,100 NB-3-10 ND 0.5 1.0 4.6 7,400 ~ NB-3-20 ND ND ND ND ND NB-4-5. ND ND ND ND ND NB-4-10 ND ND ND ND ND NB-4-20 ND ND ND ND ND NB-5-5 ND ND' ND ND ND NB-5-10 ND ND ND ND ND NB-5-20 ND ND ND ND ND NB-6-5 ND ND ND ND 3,600 NB-6-10 ND ND ND ND ND NB-6-20 ND ND ND ND ND MW-l-20 ND ND ND ND ND MW- 1-30 ND ND ND ND ND MW-2-20 ' ND ND ND ND ND MW-2-40 ND ND ND ND ND MW-3-10 ND ND ND ND 2,600 MW-3-20 ND ND ND ND ND MW-3-30 ND ND ND ND ND MW-3-40 ND ND ND ND ND 4.3 Laboratory Analysis of Ground Water Samples ~ESNA INDUSTRIES OUrOBER 17, 1991/Page 4 ~ MAINLAND PACIFIC - Big Valley Truck Stop _ f "~ The ground water samples retrieved from the three monitoring wells installed at the subject site were analyzed for benzene, toluene, ethylbenzene, and total xylenes using EPA Methods 5030/8020 and for total petroleum hydrocarbons as diesel using EPA Methods 3550/8015. The results of the ~f~.~ple analyses are listed beloTM in parts' per billion (ppb) or as "ND-Not Detected' .'?'"'naa ~+~ SAMPLE Benzene Toluene Ethylbenzene Total Xylenes TPH (dieseB MW-1 ND ND ND ND ND MW-2 ND ND ND ND ND MW-3 ND ND ND ND ND 5.0 GEOLOGY The subject site is located near the south end of the San Joaquin Valley at an elevation of approximately 404 feet above sea level. The local topography is generally level and the regional gradient trends to the south west at approximately 9 feet per mile. The Kern River channel (presently dry) is situated 2,000 feet east of the site. Soils logged during the assessment consisted predominantly of silty fine grained sands from the surface to approximately 10 feet below grade followed by a distinct silty horizon to a depth of 14 feet below, grade. The thin silt is underlain by a silty, f'me to predominantly coarse grain sand to a depth of approximately 37 feet below grade followed in turn by a gravelly silty sand to a depth of at least 75 feet below grade. The wellheads were surveyed and an electric sounder (SoIinist) was used to measure the depth to ground water at the subject site on August 2, 1991. The results of the survey follow: Gr0un0 Elevation D~pth to water Water Table Elevation MW- 1: 404.30" 58.70' 345.60' MW-2: 404.15' 58.55' 345.60' MW-3: 404.40' 58.50' 345.90' The local direction of ground water flow is north 20 degrees east and the gradient drops approximately .5 feet per 100 feet (refer to Plate 5). During prior assessment work performed at the subject site in January of 1988, ground water was sounded at a depth of 21.5 feet below grade in monitoring well B-3/MW-1 (this well no longer exists). 6.0 CONCLUSIONS 6.1 The results of the assessment indicated that a plume of petroleum hydrocarbon constituents (TPH-diesel) is located in the vicinity of the prior central and RESNA INDUSTRIES OCTOBER 17, 1991/Page 5 MAINLAND PACIFIC - Big Valley Truck Stop western dispenser areas of the subject site. The approximate dimensions of the plume are: maximum vertical extent - 35 feet below grade; total east to west lateral extent - 65 feet; and total north to south lateral extent - 38 feet. The total volume of impacted soils is estimated to be 1,300 cubic yards. 6.2 The depth to ground water underlying the subject site is 58 feet below grade. The local direction of ground water flow is north 20 degrees east and the gradient drops approximately .5 feet per 100 feet (refer to Plate 5). Water samples retrieved from the three (3) monitoring wells located at the subject site did not contain any petroleum hydrocarbon constituents. 7.0 REMEDIAL ACTION ALTERNATIVES 7.1 No Action This remedial action alternative would invOlve leaving the plume of impacted soils in place and allowing the petroleum hy~ocarbon constituents to degrade naturally through time. This alternative; howe~er, is not acceptable because under present conditions the maximum allowa~centration of TPH (diesel) constituents that can be left in plaCe in the soil i~, 1.0~ol~m based upon the. r~OHS ! .llgT~Manual Leachin e Potential Analysis. Furt~err~ore~historic ground water levels recorded at the subject site (1988-1989) have been as high as 21 feet below grade. If drought conditions cease and normal precipitation patterns resume, the rising water table could contact the hydrocarbon plume. 7.2 Excavation - On Site Treatment This remedial action alternative would involve physically removing the plume of impacted soils with excavation equipment. The soils could then be spread on site and remediated by biodegradation. The subject site has a large asphalt paved parking area that is fenced and sufficiently isolated from residential areas where the impacted soils can be staged. The soil removal phase of this operation would require approximately five (5) days. Initial heavy equipment costs for the excavation and spreading of impacted soils' would range from $13,000 t° $15,000. Additional costs would consist of maintaining and turning the soil piles, confirmation soil samples, and backfill and compaction of the excavation. The remediation process is anticipated to last at least three to five months. 7.3 In Situ Bioremediation This remedial action alternative would involve the vapor extraction of soil gases to reduce the components of the plume by a combination of direct volatilization and RESNA INDUSTRIES OCTOBER 17, 1991/Page 6 MAINLAND PACIFIC - Big Valley Truck Stop removal and by weathering induced by supplying oxygen to the impacted soils. This alternative will require the construction of at least two vadose wells for the purpose of vapor extraction and air supply. Before the system can be fully designed, a pilot test to find the radius of influence of the extraction well would be required. The total number and spacing of wells will be determined from the results of this test. The start-up cost to install a vapor extraction system is approximately $20,000. Additional costs ranging from $20,000 to $30,000 would include APCD permitting and pilot testing, air sample analysis, carbon regeneration, maintenance, and reporting requirements. The total time required to remediate the soil plume will depend upon the number of extraction and air supply wells, the horsepower devoted to the pumping operation, and soil conditions. An estimated completion schedule of eight to sixteen months is anticipated. 8.0 RECOMMENDATIONS The excavation alternative appears to be the ~quickes. t and most cost effective means ofremediatin!g the impacted soils at the subject site. If deeper sections of the plume are unable to be removed due to equipment constraints, excessive caving of the excavation, or the need for shoring, some form of vapor extraction or in-situ biostimulation will also have to be utilized. 9.0 LIMITATIONS This report was prepared for the exclusive use of Mainland Pacific Development Company as it relates to the property described. The discussions and conclusions presented in this report are based on: - The observation of field personnel. - The soil sample analysis results by Applied Analytical Laboratory The understanding of the regulations of the County of Kern and the California Regional Water Quality Control Board. Possible variations in the soil or groundwater conditions which may exist beyond the points explored in this investigation might effect the validity of this report unless those variations or conditions come to our attention and are reviewed and assimilated into the conclusions and recommendations of this report. Also, changes in the hydrologic conditions found to occur with time due to variations in RESNA INDUSTRIES OCTOBER 17, 1991/Page 7 ~ MAINLAND PACIFIC - Big Valley Truck Stop rainfall, temperature, regional water usage, or other factors, any of which could effect this report. The services performed by Resna have been conducted in a manner consistent with the levels of care and skill, ordinarily exercised by professionals currently practicing under similar conditions in California. The absence of contamination on or beneath the property cannot be guaranteed by this report. Resna is not responsible for any contamination or hazardous material found on the property. No other warranty expressed or implied, is made. Respectfully submitted, RESNA INDUSTRIES Thomas A. Mele Dale A. Johnson, RG #4864 Project Geologist Director of Technical Services TAM:tdc cc: Mr. Calvin Okeya - Mainland Pacific RESNA INDUSTRIES OCTOBER .17, 1991/Page 8 Dispenser #1 Dispenser #2 Dispenser #3 Dispenser #4 truck scale Dispenser #5 Surface NB-1 NE ~-5 NB-~ ,. NB-3 B-1 .............................................................................................................................. .~,:..,,.~;>,~.:,:.,.;,,~:~.,,,~-:.;.:,~,~:,.;.:,:,...-:,...¥~,,,,<...~:::.,~ :::,<:::=:= ~I~.~..< :, 1 0' ................ ~. ............... ~..~.~...., ....... o.- ........... · ........ ~ ,<.. ~o... ND~ · .......... ~ .............. . ....... ~ ...... ,.~.,~.~.~. ...... ..,~ ....... ~..~..~... ~30' Rnil les - ppm --35' 2,400 'I'PH (diesel) one Detected · ...................................................... sCALE d horizontal --45' Ity sands ItS --50' GM - gravelly silty san_..~ PLATE MAINLAND PACIFIC DEVELOPMENT COMPANY ~, r~ (Old BIG VALLEY TRUCK STOP Site) ~.~. ~ ~.-.,~ 3115 PIERCE ROAD . ~,~~~~ BAKERSFIELD, CALIFORNIA Environmental Solutions Through Applied Science, EAST - WEST CROSS SECTION DATE:10-7-91 Engineering & Construction PROJECT NUMBER: 3801-3 ~ N -- fence ~ Line of Equal '~ Ground Water Elevation- iROUND WATER FLOW DIRECTION NORTH 20 DEGREES EAST concrete building MW-3 foundation ~ LEGEND Ground Elevation De_~th to Water Water Table Elevation MW-1: 404.30' 58.70' 345.60' MW-2: 404.15' 58.55' 345.60' MW-3: 404.40' 58.50 345.90' Gradient: .5'/100' Flow Direction: North 20 Degrees East SCALE 1" - 25' ~, ,~ MAINLAND PACIFIC DEVELOPMENT CO. PLATE ~==i' '" ~ ~=~ (Old BIG VALLEY TRUCK STOP Site) Environmental Solutions 3115 PIERCE ROAD ~ Through Applied Science, BAKERSFIELD, CALIFORNIA D Engineering & Construction l,.ojEC~' N~BE.: 38o~-3 GRADIENT PLOT /8-2-911 ANALYSEb"- SAMPLE ~ .~. .Lab Field z .-. ~ ._~ 0 < ,,, .>. ~ ~'°~ a:> .~m >. ~ SOIL DESCRIPTION P.I.D. i- z - · TPHd -- ,,, z o ~ ppm m ~ _ ~ -, Cement _ 0 m m SM Sand - meal bm, pred fn - crs grain (Sff'/~), silty -- ~ ~ (20%), damp si diesel odor _ 0 7 ~ B NB-l-5 SM Sand - A/A -- 10-- _ -- 10-- -- ND 47 15 ~ ' I NB-1-10 ML Silt- grey w/ferrug stains, si dandy (10°/o), tr clay, ~ 2,600 20 -- -- damp, mod diesel odor ~ 7 -.-. _ 50 12 ~"~ B NB-1-15 SlY Sand -dk bm, fn -crs gm (70%), silty (30%), -- 20 ~ _ damp, mod diesel odor _ ND 70 10 ~"---~-- I NB-1-20 SM Sand - rned bm, f - crs gm (90°/o), si silty (10%), _ 2,300 10 ~ -- moist, strong diesel odor -- 15~ ~ _ 25 20 --~ I NB-1-25 SM Sand - A/A, si diesel odor -- 16-- -- _ ND 24 16 ~"-'~ B NB-1-30 SM Sand - dk bm. fn-crs gm (90%), si silty (10%), _ 5,200 17 ~ -- moist, si diesel odor -- 20~ -- _ ND 0 20 ~'"---~I NB~1-35 SW; Sand - It brn, fn - v crs gm, moist, no odor' -- 130 30 ~ _ 0 20 B NB-1-40 GW Gravelly sand - gravels (2ff'/o), w/It bm, fn - ~ ND 30 -- -- crs grn sand (80%), rTnolst, no odor -- 20-- -- -- ND 0 25 B NB-1-45 GM Gravelly silt sand - gravels (3~/o),' w/ It bm fn crs ~ -- -- sands (50%), silty (20%), moist, no odor LOGGED BY: TAM DIAMETER OF BORING: 6-inch DATE DRILLED: 7-25-91/8-27-91 WATER ENCOUNTERED AT: NONE TOTAL DEPTH: 45 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacific RESNA/GROUNDWATER RESOURCES, INC.' SITE NAME: Big Valley Truck Stop PLATE (e05)835-7700 environmental/geotechnical services BORING LOCATION: Dispenser#1 ~ PROJECT NUMBER: 3801-3 LOG OF BORING NB-1 page ANALYSE,.,,--_ SAMPLE Lab Field ~- '~ o ~ < ,,, E ~ · o ~ > m ~ '~ SOIL DESCRIPTION ~ P.I.D. O~ i- ~ ::3 ~ ~ TPHd .~ ppm m ~ _ z z = ~ .q C~mont ~ _ _ Sly Sand -med bm, pred fn - crs grain (80%), silty -- ~ -- (20%), damp si die.~l odor 7 --'-'"~--I NB-2-S SM' Sand-.~a, si odor -- 5 10 1~ 10 15 --"-~ I NB-2-10 ML Silts- gray w! feting stains, si dandy (10%), tr ~ 11,400 20 ~ ~ ¢~ay, damp, mod diesel odor -- 50 ,0 I ~.~., 5 SM Sand - mod bm, fn - em ~m (80%), silty .- 15 ~ ~ (20%), moist, mod diesel odor -- 2,400 0 -- --I NB-2-20 SM Sand - A/A, si diesel odor _ o 2o I NB-2-25 SM Sand - ,~A, no odom ND 0 16:1 NB-2-30 SMI Sand-A/A _-- ND 20 ~ ~ LOGGED BY: TAM DIAMETER OF BORING: 6-inch DAlE DRILLED: 7-25-91 WATER ENCOUNIERED AT: NONE TOTAL DEPTH: 30 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROdECT NAME: Mainland Pacific RESNA/GROUNDWATER RESOURCES, lNG. SITE NAME: Big Valley Truck Stop PLATE (805)835-7700 environmental/geotechnical services BORING LOCATION: Dispenser #2 7 PROJECT NUMBER: 3801-3 i LOG OF BORING NB-2 page~ ANALYSE,.bw SAMPLE ~ Lab Field ~ ..-. ::3 .j rf- E 0 *,:I: u.I O~ ~ > m ,,, ~ SOILDESCRIPTJON . Benzene P.I.D. ' ~ g TPHd .u a. .~ _ I~m m z :~ · Soil -- 5 -- "- SI~ Sand - reed bm, pred fn -crs grain (80%), silty _ _ _ (20%), damp, strong oily odor ND 10 8 ~'---I : 9,100 10 ~ : NB-3-5 SM Sand-A/A ND 50 11 ~ I NB-3-10 ML~ Silts- grey WI ferrug stains, si sandy (i0%), tr - ?,~oo 2s__ .... clay, streng oily odor -- 20 -- -- (20%), moist, no odor -- ND 0.~20 -- -- I NB-3-20 SlY Sand - A/A - - -I LOGGED BY: TAM DIAMETER OF BORING: 0~inch DAlE DRILLED: 7-25-91 WATER ENCOUNIERED AT: NONE TOTAL DEPTH: 20 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacific RESNA/GROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Stop PLATE (805)835-7700 environmentaFgootechnical sentices BORING LOCATION: Dispenser #3 ' 8 PROJECT NUMBER: 3801-3 LOG OF BORING NB-3 page 1 o[1 ANALYSEL,.=- SAMPLE ?: Lab Field z ~ ~ O . ~ u.i >., o cc>~m >,~ '?~ SOIL DESCRIPTION TPHd O, n ~ Z - = : : SM Sand - reed bm, pred fn - crs grain (80%), silty -- _ _ (20%), damp, no odor 1~ 0 7 ~ ! NB4-5 SM 'Sand - -- ND 8'-- -- m 0 20 ~'~'~ I NB-4-10 ML Silts- §roy w! formg stains, si sandy {10%), tr m 30-- m m ~ m clay, damp, no odor _ m o,5_---i NB.4.1§ SMSand- mod bm, fn-cm§m{80O/o),SlfOrm§, _ ND 20 -- ~ silty (20%), damp, no odor _ ~ o 2o --'~-l NB-~-~o SM Sand-~A ._ ND 30 -- -- LOGGED BY: TAM DIAMETER OF BORING: 6-inch DAlE DRILl. fiD: 7-25-01 WATER ENCOUNIERED AT: NONE TOTAL DEPIH: 20 feet SAMPLING METHOD: DRILLING OOMPANY: RESNA PROJECT NAME: Mainland Pacific RESNA/GROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Stop PLATE (805)835-7700 environmentaltg~otechnical sentices BORING LOCATION: Dispenser #4 9 PROJECT NUMBER: 3801-3 - LOG OF BORING NB-4 page 1 of 1 ANALYSEb-- SAMPLE '~ ~ Lab. Field ~ _~. '~ _~ m '~ '~ SOIL DESCRIPTION - Benzene P.I.D. · 3: n.- :~ >. ~ TPHd ~0 ~ i~ ::3 ~ d ppm ~~ _z z ,-.'~ ~..,= C~n'~nl -- ~ ~ SM Sand - ~ bm, pr~! fn - c~ grain (80%), silty - _-- _-- (~OO/o), d~,m~, no odor ND. 0 8 --'----~l NB-S-5 SM Sand- ~ ND 11 _ _ ND 10 -- ND 0 20 ~ B NB-5-10 ML Silts- grey w/ferrug stains, si sandy (10%), tr _ _ _ clay, damp, no odor -- 0 i 20~"'"'~-- B 'NB-5-15 SM Sand - reed bm, In - crs gm (80%), si ferrug, -- ' 30-- -- silty (20%), damp, no odor 10 ND 0 12 --~"~I NB-5-20 SM Sand -/VA ~ ND 20~-- -- LOGGED BY: TAM DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-25-91 WATER ENCOUNTERED AT: NONE TOTAL DEPTH: 20 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacific RESNA/GROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Stop PLATE (805)835-7700 envimnmental/geotechnical sen/ices BORING LOCATION: Dispenser#5 1 0 PROJECT NUMBER: 3801-3 LOG OF BORING NB-5 page I of I ANALYSES'" SAMPLE --,,- o ~: uJ o~ ~ > m SOIL DEscRIPTION Benzene P.I.D. uJ ~ ~ ~ TPHd .u a- ~ z -- ppm m ~ Z o .~ Cement _-- 25 ~ ~ m ~ SM Sand -med bm, pr~l fn -cm greln (80%), silty _ _ ~ (20°/o), damp, strong diesel odor m 55 _--r_ I Sand. NA, strong delsel odor _- a,6oo lO__ -- .D 0 '10 --~ I NB-6-10 ML Silts- grey w/ferrug stains, si sandy (10%), tr -- 15 -- m clay, damp, no odor · -- 0 14'--"'"~! NB-6-15 SM' Sand- med bm, fn-crsgm(80%),slferrug, -- 20~-- ~ silty (20%), damp, no odor ND 0 20 ~"=~l NB-6-20 SM Sand-A/A : ND 25 ~ m LOGGED BY: TAM DIAMETER OF BORING: 6-inch DATE DRILLED: 7-25-91 WATER ENCOUNIERED AT: NONE TOTAL DEP'FH: 20 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland paCific RESNA/GROUNDWATER RESOURCES, INC. PLATE (805)835-7700 SITE NAME: Big Valley Truck Step environmentaltgootechnical services BORING LOCATION: Dispenser #6 1 1 PROJECT NUMBER: 3801-3 ' LOG OF BORING NB-6 page 1 of l ANALYSE~"~ SAMPLE · m SOIL DESCRIPTION - Benzene~ P.I.D. ~ ~ :3 ~ d TPHd _ z -- ~m ~ ~ z o Ce~nt ~ 0 ~ ~ SM S~d - ~ bm, pr~ fn -cm g~n (8~), slay -- ~ ~ (20%), d~, no odor _ o ~B Mw-~-~ sus=u-~, - o ~~ UW-~-~0 SMS=~-~, -- 0 ~ ~ MW-~-~5 SM S~U-~* _ ~ 0 ~ ~ MW-1-20 SM Sand - ~ bm, fn - v cm gm (90%), si slay (10%), -- ~ -- moist, no ~or o ~~ MW-~-=s SM Sand - ~A -- ~ 0 ~~ MW-l-30 SM Sand-NA ~ 0 ~ ~ MW-l-35 SM S~d - ~A ~ 0 ~ ~ MW-I~0 GM Gravelly si~ sand - ~ave~ (3~/~), w/fn - v ~ ~ -- ~ bm sand (~%), si~ (2~), moist, no odor 0' ~~ MW-I~5 GM Gravelly si~y sand - ~A L~GED BY: T~ DIAMETER OF BORING: 6-Inch DA~ DRILLED: 7-26-91 WATER ENCOUNTERED AT: 58.70' TOTAL DEPTH: 72 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PR~ECT NAME: Mainland Pac~ RESNNGROUNDWATER RESOURCES, INC. S~ NAME: Big V~leyTm~ Stop P~TE (805)~5-7700 environmentaFg~technical se~ices BORING LOCATION: West of P~or Tank Cluster PROJECT NUMBER: 3801-3 · LOG OF BORING .MW-1 ANALYSE~5'-,,-- SAMPLE ~ ~ Lab Field ~ =. m '~ '~ SOIL DESCRIPTION IPHd ~ z -- · ppm m ~ _z ,-° Cen'~nt : 0 = : MW-l-50 GM Gravelly silty sands - gravels (30%), wi fn - v -- ~ -- crs, reed bm sands (50%)° silty (20%), wet, -- ~ -- no odors ND__ 0 ~ l MW-1-55 GM Gravelly silty sands - A/A '~ Z ZZ -- 0 ~ l MW-1-60 GM Oravoll¥ silty sands - NA, saturated _ o _--2_I uw-i.6s GM _ o ----~--I MW-~-70 GM~A LOGGED BY: TAM DIAMETER OF BORING: 6-inch DAlE DRILLED: 7-26-91 WATER ENCOUNIERED AT: 58.70 feet TOTAL DEPTH: 72 feet SAMPLING METHOD: DRILLING COMPANY: RESNA RESNA/GROUNDWATER RESOURCES, INC. PROJECT NAME: Mainland Pacilic PLATE (805)835-7700 SITE NAME: Big Valley Truck Stop envimnmental/geotechnical sen/ices PROJECT NUMBER: 3801-3 BORING LOCATION: West of Prior Tank Cluster 1 2 LOG OF BORING MW-1 page2of2 Mainland Pacific. Pierce Road Bakersfield Water Monitoring Well MW-1 Box Locking Cap Concrete · - Neat Cement Blank Casing (52'- surface) 2' PVC 40' 72' Seal 5' Perforated Casing, 2" dia 6' .020' slots (72'- 527) Water table 14' ,Sand pack, #2/12 -- · Bottom Plug I~ ANALYSES""' SAMPLE O ~ LU ~ 3: CC :~' >,~~ SOIL DESCRIPTION ~ P.I.D. ~ ~ ~ TPHd C ~ ~ z -- · ~m ~ ~ z o Asph~ ~ 0 ~ ~ SM S~d - ~d bm, p~ fn -cm g~n (8~), si~ -- ~ _ (20%), d~p, no odor _ o. ~B uw-~-s s~s~u-~, _ o ~~ uw-2-~o suSa.~-~, _ 0 ~ ~ MW-2-15 SM Slit - ~d bm. tr s~d (10%) si clayey (1~/~), si -- ~ ~ plast, moist, no ~or -- 15~ -- · ' ND 0 20 ~ ~ MW;2-20 , SM Sand - ~ bm, fn - v cm gm si fe~g (8~), slay -- ND 20 -- -- -- (2~/~), moist, no ~or _ o ~B uw-~-~sS~nU-~, - o ~~ UW-~-~o _ o ~~ uw-~-~sSanU-~, 20 ~ 0 30 ~ ~ MW-2~0 Gravelly si~y sand - ~vels (30%), w/fn - v -- ~ ~ -- gm, ~d brn sand (5~), slay (20%), moist, no ~ ~ ~ ~or _ 0 ~ ~ MW-2~5 Gravelly si~y sand - ~A ~OGGED BY: TAM DIAMETER OF BORING: 6-inch DATE DRILLED: 7-29-91 WATER ENCOU~ERED AT: ~.55 feet TOTAL DEPTH: 70 feet SAMPLING METHOD: DRILLING COMPANY: RESNA RESNNGROUNDWATER RESOURCES, INC. PR~ECT NAME: Mainland Pacific P~TE (805)~5-7700 Sl~ NAME: Big Valley Tm~ Stop environmentaFg~t~hnical sewices 3 PROJECT NUMBER: 3801-3 BORING LOCATION: We~ ot PHor Tank Cluster LOG OF BORING MW-2 ~ge~ o~2 ANALYSEb--.- SAMPLE v .,3 Lab Field z ~ ~ o ~ ~' '~' o --" > m ~ ' SOIL DESCRIPTION Benzene P.I.D. O~ ~ "' ::3 ~ d IPHd .~ z -- · ppm m ~ z o ~ Cement I---- -- 0 -- -- MW-2-50 GM Gravolly silty sands A/A --I 1~_ 0 MW-2-$5 GM Oravolly silty sands - A/A -- 0' : B MW-2-60 GM Gravelly silty sands - A/A, saturated ~ 0 ~ l MW-2-65 GM Gravelly silty sands - A/A -- 0 ~ I MW-2-70 GM Gravelly silly sand~ - A/A LO~GED BY: l,aJ~l DIAMEIER OF BORING: 6-inch DAlE DRILM~D: 7-20-01 WAIER ENCOUI~I'ERED Al: 58.S$ feot TOTAL DEPTH: 70 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT N~JOE: Mainland Pacific RESNA/GROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Stop PLATE (805)835-7700 environmental/geotechnical services 1 3 BORING LOCATION: North of Islands PROJECT NUMBER: 3801-3 ' LOG OF BORING MW-2 ?_ge2of2 Mainland Pacific, Pierce Road Bakersfield Water Monitoring Well MW-2 Box Cap Concrete Neat Cement Blank Casing (52'- surface) 2' PVC 38' 70' Seal 5' Pedomted Casing, 2' clia a' .020" slots (70'- 50') Water table 12' .Sand pack, #2/12 Bottom Plug ~ Table 2-1 ? Leaching Potential Analysis for Gasoline and Diesel Using Total Petroleum Hydrocarbons(TPH) and Benzene, Toluene, Xylene and'Ethylbenzene (BTX&E) The following table was designed to permit estimating the concentrations of TPH and BTX&E that can be left in place without threatening ground water. Three levels of TPH and BTX&E concentrations were derived (from modeling) for sites which fall into categories of low, medium or high leaching potential. To use the table, find the appropriate description' for each of the features. score each feature using the weighting system shown at the top of each column. Sum the points for each column and total them. Match the total points to the allowable BTX&E and TPH levels. S SCORE S SCORE S SCORE SITE C 10 PTS C 9 PTS C 5 PTS 0 IF CON- O IF CON- O IF CON- FEATURE R DITION R DITION R DITION E IS MET E IS MET E IS MET Minimum Depth to >100~ 51-100 25-50~ Ground Water from the Soil Sample (feet) Fractures in subsurface None Unknown: Present (applies to foothills or mountain areas) Average Annual <10 10-25 26-40~ Precipitation (inches) Man-made conduits which /% None Unknown Present increase vertical migration of leachate Unique site features: None~ At least More recharge area, coarse ~I one than one soil, nearby wells, etc RANGE OF TOTAL POINTS i49pts or more 41 - 48 pta 40pta or less MAXIMUM ALLOWABLE 1/50/50/50 .3/. 3/1/1 NA~ B/T/X/E LEVELS (PPM) MAXIMUM GASOLINE 1000 100 10 ALLOWABLE TPH LEVELS (PPM) DIESEL 10000 1000 100 ~ If depth is greater than 5 ft. and less than 25 ft., score 0 points. If depth is 5 ft. or less, this table should not be used. ~ If precipitation is over 40 inches, Score 0 points. ~ Levels for BTX&E are not applicable at a TPH concentration of .lOppm (gasoline) or 100ppm (diesel) (For explanation see step 6, page 27.) 29 ~ APPLIED ANALYTICAL Environmental Laboratories .S E P 2 0 ~j ~ -- 17062 Murphy Ave. Irvine, CA 92714-5914 714 851-1544 Project Name: COUNTY/KERN Project No. :3801-3 September 10, 1991 Tom Mele Groundwater Resources, Inc. 1500 S. Union Ave. Bakersfield, CA 93307 Dear Mr. Mele: Enclosed please find the analytical results for the soil samples received by Applied Analytical Environmental Laboratory.on 08-28- 91. Applied Analytical maintains a strict Quality Assurance/Quality Control (QA/QC) program designed to meet or exceed EPA requirements. Analytical data presented in this report met QA/QC criteria. The specific analytical methods used and cited in this report are approved by the State of California,s Department of Health Services (DOHS) under certificate number E678. If you have any questions regarding these analyses, or if we can be of further assistance, please give us a call. Sincerely, APPLIED ANALYTICAL F.A. Jaime Laboratory Supervisor APPLIED ANALYTICAL Environmental Laboratories - .. 17062 Murphy Ave. Irvine, CA 92714-5914 Attention:Tom Mele Date Sampled: 08-27-91 Groundwater Resources,Inc Date Received: 08-28-91 1500 S. Union Ave. Date Analyzed: 09-09-91 Bakersfield, CA 93307 Date Reported: 09-10-91 · Project: 3801-3 Matrix: Soil EthyL- Total .B. e~z erie Tot ue~e benzene XY[ ~ TPH Detection Limit (mg/kg) 0.005 0.005 0.005 0.OO?-- 1.0 Sample description NB-l-35 ND ND ND ND NR S2-108-281. NB-l-40 ND ND ND ND NR S2-108-282. NB- 1- 45 ND ND ND ND S2-108-283.. NR TPH = total petro[em hydrocarbons as gasotine. mg/kg= Nittigrams per kilogram = ppm = parts per mittion. ' = Laboratory identification number. NO = Anaiytes not detected at or above the stated detection Limit. AUALYTIr. AL PROCEDURES BTEX-- Benzene, toluene ethylbenzene, and total Xy[ene isomers are measured in accordance uith EPA Method 5030 fo&toued by analysis using EPA Method 8020. TPH-- Tots& petroteua hydrocarbons ss gasoline are ateasured in accordance uith EPA Method 5030, foi[oued by · oclified EPA Method 8015. APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. .' . Irvine, CA 92714-5914 Attention: Tom Mele Date'Sampled: 08-27-91 GroundWater Resources, Inc. Date Received: 08-28-91 1500 S. Union Avenue Date Analyzed: 09-09-91 Bakersfield, CA 93307 Date Reported: 09~10-91 Project: 3801-3 Matrix: Soil Analysis: Total PetrOleum Hydrocarbons as, diesel Detection limit (.n?/kg) TPHd .Sample description NB-l-35 S2-108-281, 130 NB-l-40 S2-108-282, ND NB-l-45 S2-108-283, ND TPH = Total petroie~mhydrocarbons as diesel. rig/kg = Nitiograms per kitogram = p~ = parts per mittion. * = Laboratory identification number. NO = Ana&ytes not detected at or above the stated detection limit. AMALYTICAL PROCEDURES TP#d-- Totat petroteumhydrocarbons are measured by extraction in accordance with EPA Nethod3550. fotlowed by modified'EPA NethodS015. 1.500 S. Unic ,venue groundwater resources, inc. Bakersfield, CA 93:~07 Telephone: ( 805 ) 835-7700 CHAIN OF CUSTODY RECORD Tele-Fax: ( 80:5 )835-7~?17 LAB DESTINATION: PROJECT NUMBER:~_~'_¢__/_.-3 PROJECT CONTACT: . ~z~ 4~~c~ P.O. NUMBER_~L~ .... SAMPLER(S~ature) o~z ~ ~~-= ~ '~ ~ COUNTY: LAB SAMPLE z ~ NUMBER NUMBER DATE TIME SAMPLE LOCATION ~z ANALYSIS SAMPLE CONTAINER 0 REQUESTED TYPE TYPE SPECIAL INSTRUCTIONS: POSSIBLE SAMPLE HAZARDS' I. Relinquished by! ~"~4 ~ Date/Time?~z~'~/.~___~ Received by: ) Date/Time: !. Relinquish ed by: Date/Time: R ecelvedby:(~~~~Date/Tlme:*/~ ' !. Relinquished by: Date/Time: Received by- Date/Time: 1. Relinquished by: Date/Time:., Received by: Date/Time: .CCR (Rev. 10/89) WHITE: LABORATORY PINI~ JOB FILE YELLOW: SAMPLE LOG APPLIED ANALYTICAL' Environmental Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 (714) 472-5060 Project Name: Kern County Project No. : 3801-3 August 20, 1991 Tom Mele Groundwater Resources 1500 So Union Ave. Bakersfield, CA 93307 Dear Mr. Mele: Enclosed please find the analytical results for'the soil and water samples received by Applied Analytical Environmental Laboratory on 08-01-91. Applied Analytical maintains a strict Quality Assurance/Quality Control (QA/QC) program designed to meet or exceed EPA requirements. Analytical data presented in this report met QA/QC criteria. The specific analytical methods used and cited in this report are approved by the State of California,s Department of Health Services (DOHS) under certificate number E678. If you have any questions regarding these analyses, or if we can be of further.assistance, please give us a call. * Sincerely, APPLIED ANALYTICAL F.A. Jaime Laboratory Supervisor L~ \ 1500 S. Union Av~nue groundwater resources, inc. Bakersfield, CA 93307 Telephone: ( 805 ) 835-7700 ______ CHAIN OF CUSTODY RECORD Tele-Fax: ( 805 ) 83Sz7717 LAB DESTINATION: 1PROJECT NUMBER: .3~:~¢/-~ 1 SAMPLER(S): (Signature) "~"~ ~' '?'~/.~C~_- COUNTY: LAB SAMPLE NUMB NUMBER DATE TIME SAMPLE LOCATION ANALYSIS !SAMPLE CONTAINER REQUESTED TYPE TYPE /¢'.-,'-~ '?-.,-b .?! '-/:'/'5- ,,'~, -.,z ,.,, ,., ,, ..~ /~'h.V- ~ 7'.~'~ 'f'! /-~,.,., -_'1 ,,, ., ... SPECIAL INSTRUCTIONS: J POSSIBLE SAMPLE HAZARDS: 1. Relinquished by: Date/Time: Received by: Date/Time: l. Relinquished by: Date/Time: Received by: Date/Time: 1. Relinquished by: Date/Time: Received by: Date/Time: CCR (Rev. 10/89) WHITE: LABORATORY PINK: JOB FILE YELLOW: SAMPLE LOG APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 Attention:Tom Mele Date Sampled: 07-30-91 Groundwater Resources, Inc. Date Received: 08-01-91 1500 S. Union Ave. Date Analyzed: 08-13-91 Bakersfield, CA 93307 Date Reported: 08-20-91 Project: 3801-3 Matrix: Water Analysis: Total Petroleum Hydrocarbons as diesel Detection1 [imJt (mg/L) ,TPHd Sample description W2-108-001. ND MW2 W2-108-002. ND MW3 W2-108-003. ND TPHd = Total petro[eum hydrocarbons as diesel #2. ag/L = Nittigra~s per Liter ; p~= parts per · = Laboratory identification number. ~0 = Aniytes not detected at or above the stated detection [imit. AIL~LlrI'ICAL PROCEDt~E$ ?Plld-- ?ota[ petro[euahydrocarbons as diese& #2 aremeasuredb¥ extraction in accordance uith EPA Nethod3550, fo&[oaed by a~clified EPA Nethocl 8015. APPLIED ANALYTICAL En vironmen tal LaboratOries 17062 Murphy Ave. Irvine, CA 92714-5914 Attention:Tom Mele Date Sampled: 07-30-91 Groundwater Resources, Inc. Date Received: 08-01-91 1500 S. Union Ave. Date Analyzed: 08-08-91 Bakersfield, CA 93307 Date Reported: 08-09-91 Project: 3801-3 Matrix: Water EthyL- Total B,e~zefle ToLuene benzene Xyt eries TPH Detec?f.on t i?i.t..¢Ug/L) ............ 0.3 .............. 0.~.3 .......................... 0.:3 ............ . .... 0.~.5 .................. 5-~- Samute desc~ipt ion MW- 1 ND ND ND ND NR W2-108-001. MW-2 ND ND ND ND NR W2-108-002. MW-3 ND ND ND ND NR W2-108-003. TPH = total petrote~a hydrocarbons as gasoline. -x ug/L = Micrograms per Liter = ppb = parts per biLLion. * = Laboratory identification nuTber. lid -- Anatytes not detected at or above the stated detection Limit. NR = AnaLysis not requested. ANALYTICAL PROCEDURES BTEX-- Benzene, totuene ethytbenzene, and total Xytene isomers are measured in accordance with EPA #ethod5030 foLLowed by analysis using EPA Method 8020. TPH-- Total petroleums hydrocarbons as gasoline are measured in accordance with EPA Nethod 5030, foLLowed by mocHfiecl EPA Hethod 8015. APPLIED ANALYTICAL Environmental Laboratories .17062 Murphy Ave; Irvine, CA 92714-5914 Attention: Tom Mele .- Date sampled: 07-30-91 Groundwater Resources, Inc. Date Received: 08-01-91 1500 S. Union Avenue Date Analyzed: 08-08-91 Bakersfield, CA 93307 Date Reported: 08-09-91 project: 3801-3 Matrix: Soil Analysis: Total Petroleum Hydrocarbons as diesel Detection limit (mg/kg) .TPHd II I III I III I I IIIIII I I IIII I II II I II 10I Sample description MW-3-30 S2-108-010. ND MW'3-40 S2-108-011. ND TPH = Total petroleum hydrocarbons as diesel. ag/kg = #iliograas per kitograa = pp. = parts per million. · = Laboratory identification ha.bet. I~D = Anatytes not detected at or above the stated detection limit. A#ALYTICA& PRCkT, EI)LI~ES . TP#d-- Total petrolemhydrocarbons are aeasuredby extraction in accordance with EPA #ethed]550, follobedby .mdified EPA Nethod 8015. APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 Attention: Tom Mele Date Sampled: 07-30-91 Groundwater Resources, Inc. Date Received: 08-01-91 1500 S. Union Avenue Date Analyzed: 08-08-91 Bakersfield,~ CA 93307 Date Reported: 08-09-91 Project: 3801-3 Matrix: Soil Analysis: Total Petroleum Hydrocarbons as diesel De~ect~ Limit (~/kg) TP.._.._~ Sample description MW-l-20 S2-108-004. ND MW-l-30 S2-108-005. ND MW-2-20 S2-108-006. ND MW-2-40 S2-108-007. ND MW-3-10 S2-108-008, 2,600 MW-3-20 S2-108-009, ND TPH = Total petroleum hydrocarbons as diesel. rog/kg = Niliograms per kilogram = ppm = parts per mittion. "= Laboratory identifjcati~x~ number. ldo = Analyzes not detected at or above the stated detection, timJt. ANALYTICAL PR~URES TPHd-- Total petroletaa hydrocarbons are measured by extraction in accordance with EPA Method 3550, fotLowed by ' modified EPA #ethod 8015. APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. Irvine. C^ 92714-5914 Attention:Tom Mele Date Sampled: 07-30-91 Groundwater Resources,Inc Date Received: 08-01-91 1500 S. Union Ave. Date Analyzed: 08-08-91 Bakersfield,~CA 93307 Date Reported: 08-09-91 Project: 3801-3 Matrix: Soil EthyL- Tota[ Benzene Totuer~ benzene XL~ TP~H ~e~ect.i.~n..ii.~,!.t ,(~/kg) 0.005 0.005 0.005 .... , ............................................................................ o.oo? 1.o Smmte descriptim - MW-3-30 ND ND ND ND NR S2-108-010. MW-3-40 ND ND ND ND NR S2-108-011. mg/kg= #ilLigrams per kilogram= ~ = parts per million. ' = Laboratory identification number. ND - AnaLytes not detected at or above the stated detection Limit. N~ = AnaLysis not requested. AXALYTICAL PROCEDURES BTEX-o Benzeno, tot~eneethy~bo~ze~e, a~cl totaL XyLe~e iso~rs fremessured in fccordfnce uith EPA Nethod5030 foLLoued by ~Lyfis urine EPA Hethod a020, TP#-- Total petroleum hydrocfrbors ff 9asoLina sire meagured in fCCOrdance Hith EPA Hethod 5030, foLLoNed by modified EPA Hethed a015. APPLIED ANALYTICAL En vironmen ~l Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 Attention:Tom Mele' Date Sampled: 07-30-91 Groundwater Resources,Inc Date Received: 08-01-91 1500 S. Union Ave. Date Analyzed: 08-08-91 Bakersfield, CA 93307 Date Reported: 08-09-91 Project: 3801-3 Matrix: Soil EthyL- Total Benzene Toluene ..benzene ~ TPH Detecti~ Limit (g/kg) 0.005 0.005 0.005 ~amole description MW-l-20 ND ND ND S2-108-004. ND NR MW-l-30 ND ND ND S2-108-005- ND NR MW-2-20 ND ND ND S2-108-006. ND NR MW-2-40 ND ND ND ND S2-108-007. NR MW-3-10 ND ND ND S2-108-008. ND NR MW-3-20 ND ND ND ND S2-108-009. NR ag/kg= #ittigra~s per kitograa = I~, = parts per mitti~n. "= La~ratory .i~ntificati~ ~r. ~ = A~tytes ~t ~tect~ at or a~ve the stat~ ~tectJ~ Limit. ~R s A~tysis ~t r~st~. ~YTI~L ~ES B~-- B~Z~, tol~ ethyi~z~, a~ total Xyie~ is~rs are masur~ in accorda~e uith EPA Heth~ foilou~ by a~iysis usi~ EPA Hech~ TPN-- Total ~tro[~ hydr~ar~s as 9asoii~ are masur~ in accotone uith EPA Neth~ 50~O, foi[o~ by ~ifi~ EPA .eth~ ~15. APPLIED ANALYTICAL En vironmen~l Laboratories 17062 Murphy Ave. Irvine. CA 92714-5914 Attention: Tom Mele Date Sampled: 07-25-91 Groundwater Resources, Inc. Date Received: 07-26-91 1500 S. Union Avenue Date Analyzed: 07-30-91 Bakersfield, CA 93307 Date Reported: 08-01-91 Project: 3801-3 Matrix: Soil Analysis: Total Petroleum Hydrocarbons as diesel TPHd Detection Limit (g/kg) 10 Sample description HB-i-iO 2,600 S2-107-216. HB-1-20 2,300' S2-107-217.- NB-l-30 5,200 S2-107-218' NB-2-10 11,400 S2-107-219' NB-2-20 2,900 S2-107-220' NB-2-30 ND S2-107-221' TPH = Total petroleum hydrocarbons as dieseL. mg/kg = Miiiograms per kilogram = ppm = parts per mi[[ion. * = Laboratory identification number. ND = Ana[ytes not detected at or above the stated detection limit. ANALYTZCAL PROCEDURES TPHd-- Total petroleum hydrocarbons are measured by extraction in accordance uith EPA Method 3550, foLloued by modified EPA Method 8015. APPLIED ANALYTICAL EnvironmenBI Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 Attention:Tom Mele Date Sampled: 07-25-91 Groundwater Resources,Inc Date Received: 07-26-91 1500 S. Union Ave.~ Date Analyzed: 07-30-91 Bakersfield, CA 93307 Date Reported: 08-01-91 Project: 3801-3 Matrix: Soil EthyL- Total B~zene ToLuene benzene Xyt eries TPH O~tection Limit (w/kg) 0.005 0.005 0.005 0.007 1.---~ SabLe description NB-5-5 ND ND ND ND NR S2-107-228. NB-5-10 ND ND ND ND NR S2-107-229. NB-5-20 ND ND ND ND NR S2-107-230. NB-6-5- ND ND ND ND NR S2-107-231. NB-6-10 ND ND ND ND NR S2-107-232. NB-6-20 ND ND ND ND NR S2-107-233. ~P.= tozat ' ' ....... ' ....................... '" ..... petroLe~ ~;dr~carbons as gasoline. ' ........... III III IIII ,,, ,rr ,r ,,,, mg/kg= MiLLigrams per kilogram = ppm = parts per miLLion. * = Laboratory identification m~ber. ND = Ana[ytes not detected at or above the stated detection Limit. HR = AnaLysis not requested. ANALYTICAL PROCEDURES BTEX-- Benzene, toluene ethyLbenzene, and total XyLene isomers are measured in accordance with EPA #ethedS030 foLLowed by analysis using EPA Method 8020. TP#-- Total petroleum hydrocarbons as gasoline are measured in accordance with EPA Method 5030, foLLowed by modified EPA #ethed 8015. -APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. Irvine. CA 92714-5914 Attention:Tom Mele Date Sampled: 07-25-91 Groundwater Resources,Inc Date Received: 07-26-91 1500 S. Union Ave. Date Analyzed: 07-30-91 Bakersfield, CA 93307 Date Reported: 08-01-91 Project: 3801-3 Matrix: Soil EthyL- Total genzes"te Toluene benzene Xyienes TPH Detection Limit (g/kg) 0.005 0.005 0.005 0.007 1.--~ 'Saute description NB-3-5 ND 0.2 0.9 3.2 NR S2-107-222' NB-3-10 ND 0.5 1.0 4 6 NR S2-107-223' ' NB-3-20 ND ND ND ND NR S2-107-224' ' NB-4-5 ND ND ND ND NR .S2-107-225- NB-4-10 ND ND ND ND NR S2-107-226- NB-4-20 ND ND ND ND NR S2-107-227, /I'lL = totat petroleum hydrocarbons as gaap-Line. '" '"'"~; ........................................... mg/kg= MiLligrams per kilogram = p~n = parts per miLLion. ' = Laboratory identification number. ND = Ana[ytes not detected at or above the stated detection Limit. HR = AnaLysis not requested. ANALYTICAL PROCEDURES BTEX-- Benzene, toluene ethyLbenzene, and total XyLene isomers are measured in accordance uith EPA Hethed 5030 foLLowed by analysis using EPA Hethod 8020. TPH-- Total petroleum hydrocarbons as gasoline are measured in accordance with EPA Hethod 5030, foLLowed by modified EPA Method 8015. APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 Attention:Tom Mele Date Sampled: 07-25-91 Groundwater Resources,Inc Date Received: 07-26-91 1500 S. Union Ave. Date Analyzed: 07-30-91 Bakersfield, CA 93307 Date Reported: 08-01-91 Project: 3801-3 Matrix: Soil Ethyl- Total B~zene Toluene benzene Xytenes TP_._~H Detection limit (~/kg) 0.005 0.005 0.005 0.007 1.0 Sable description NB-l-10 ND ND ND 0.69 NR S2-107-216. NB-l-20 ND ND ND 1.2 NR S2-107-217. NB-l-30 ND ND ND 0 90 NR S2-107-218. ' NB-2-10 ND 0.1 0.8 3 0 NR S2-107-219. ' NB-2-20 ND ND ND ND NR S2-107-220. NB-2-30 ND ND ND ND NR S2-107-221. TPH - total petroleum hydrocarbons as gasoltne. mg/kg= MittJgrams per kitogram =ppm = parts per mittion. * = Laboratory identification number. ND = Anatytes not detected at or above the stated detection timit. NR = Anatysis not requested. A~ALYTICAL PROCEDURES BTEX-- Benzene, toluene ethy[benzene, and totat Xy[ene isomers are measured in accordance with EPA Hethod 5030 fotto~ed by anatysis using EPA Method 8020. TPH-- Total petroleum hydrocarbons as gasoline are measured in accordance with EPA Method 5030, followed by modified EPA MethodS015. MAINLAND PACIFIC - Bi~ Valle~ Truck Stop APPENDIX A RESNA INDUSTRIES OCTOBER 17, 1991 Mainland Pacific, Pierce Road Bakersfield Water Monitoring Well MW-3 Box Locking Cap Concrete Neat Cement (52'- surface) 2' PVC 40' 73' 5' Seal Perforated Casing, 2' dia 58' 5' .020' slots (73'- 53') Water table 15' Sand pack, #2/12 Bottom Plug ANALYSE,.~-- SAMPLE ~ :~ ~ ~"~ Lab Field ~ *~ ' SOIL DESCRIPTION E~,a~P.I.D. ~ ~ n- :~ TPHd .~ z. - · ppm m ~ z o O~m~nt z o z z I .w-,-,o -- ND 0 -- -- I MW-3-55 GM Gravelly silty sands - A/A -- 0 ~ I MW-3-60 GM Gravelly silty sands. A/A, saturatod _ o · :l ~-~-~5 _ o --~ I MW-a-70 GM Gravolly silty sands -.~A LOGGED BY: TAM DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-29-91 WATER ENCOUNTERED AT: 58.50oet TOTAL DEPTH: 73 feet SAMPLING METHOD: DRILLING GOMPANY: RESNA PROJECT NAME: Mainland Pacific RESNNGROUNDWATER RESOURCES, INC. SIIE NAME: Big Yalloy Tru~ Stop PLATE (805)835-7700 environmentaVgootechnical services BORING LOCATION: South of Islands 1 4 PROJECT NUMBER: 3801-3 LOG OF BORING MW-3 page2of2 ANALYSE=-- SAMPLE '~ '" ~ ~ Lab Field ~ 0 < Lu , o :z: n-> :~m >, '~,~ SOIL DESCRIPTION Benzene P.I.D. ~ mPHd O, ~ I-"' Z:::3 _ ~ *'- ::3 Asphalt -- 25 ~ - SM Sand - meal bm, pred fn- crs grain (80%), slay -- -- -- (20%), damp, mod diesel odor ---! _ 30 --- -- MW-3-5 SM Sand - A/A _ ND 20 MW- -10 SM Sand-~^ _ 2,600 10 ~ __ -- 20__ m -- 25 ~ B MW-3-15 SM Silt - rned bm, tr sand (10%) si clayey (10%), -- -- ~ moist, mod diesel odor -- 1 § .~.--...~ _ ND 15 22 -- --I MW-3-20 SM Sand - mod bm, fn - v crs gm (80%), silty (20%), m ND 20 -- -- moist, si diesel odor _ lO uw- -25 SM Sa.d-~^ 20~ -- ND 0 30 -- ~l MW-3-30 SM Sand- A/A, no odors _ ND 3O -- ~ -- 0 ~ B MW-3-35 SM Sand - A/A, no odors "' 15-- -- 0 B MW-3-40 GM Gravelly silty sand - grovels (30%), w/fn - v crs 3O -- ND 50 ~ -- gm, med bm sand (5~'/o), silty (20%), moist, no m ~ ~ odor -- 0 ~ B MW-3-45 GM Gravelly silty sand - A/A LOGGED BY: TAM DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-29-91 WATER ENCOUNTERED AT: 58.50 feet · TOTAL DEPTH: 20 feet ' SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacific RESNA/GROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Stop PLATE (805)835-7700 environmental/geotechnical services BORING LOCATION: South of Islands 1 4 PROJECT NUMBER: 3801-3 LOG OF BORING MW-3 page lof2 APPLIED ANALYTICAL Environmental Laboratories 17062 Murphy Ave. Irvine, CA 92714-5914 Attention: Tom Mele Date Sampled: 07-25-91 Groundwater Resources, Inc. Date Received: 07-26-91 1500 S. Union Avenue Date Analyzed: 07-30-91 Bakersfield, CA 93307 Date Reported= 08-01-91 Project= 3801-3 Matrix: Soil Analysis= Total Petroleum Hydrocarbons as diesel Detection [imit (mt/kg) TPHd Sample description NB-3-5 S2-107-222. ,. 9,100 NB-3-10 S2-107-223. 7,400 NB-3-20 S2-107-224 ND NB-4-5 S2-107-225. ND NB-4-10 S2-107-226. ND NB-4-20 S2-107-227. ND TPH = Total petroleum hydrocarbons as diesel. mt/kg = Ni[iograms per kitogram = ppm = parts per mitLion. * = Laboratory identification nmd~er. NO = Anatytes not detected at or above the stated detection limit. ANALYTICAL PROCEDURES TPHd-- Total petroteum hydrocarbons are measured by extraction in accordance with EPA Method 3550, fottowed by modified EPA Hethod 8015. * APPLIED ANALYTICAL. _ EnvironmentalLaboratories * '17062 Murphy Ave. Irvine, CA92714-5914 Attention: Tom Mele Date Sampled: 07-25-91 Groundwater Resources, Inc. Date Received: 07-26-91 1500 S. Union Avenue Date Analyzed: 07-30-91 Bakersfield, CA 93307 Date Reported: 08-01-91 Project: 3801-3 Matrix: Soil AnalySis: Total Petroleum Hydrocarbons as diesel ~tion [imi,~...(ag/kg) TPHd U · Sample description NB-5-5 S2-107-228. ND NB-5-10 . S2-107-229. ND NB-5-20 S2-107-230 ND NB-6-5 . . S2-107-231- 3,'600 NB-6-10 S2-107-232' ND NB-6-20 S2-107-233' ND TPN = Total petro[e~ hydrocarbons as diesel. ag/kg = #i&iograms per kitogram= ppm= parts per million. * = Laboratory identification number. NO = Anatytes not detected at or above the stated detection Limit. AJIALYTICAL PROCEDURES TPfld-- TotaL petro[eum hydrocarbons are measured by extraction in accordance ~ith EPA Method3550, fo[Lo,ed by modified EPA Method 8015. ' GROUNDWATER RESOURCES INC. P.O Box 938~ Bakersfield, Califon~,'a' Telephone: (805) 835-7700 A RESNA Company CHAIN OF CUSTODY RECORD T=~= Fax: (805! _A~5-7717 LAB DESTINATION: PROJECT NUMBER: _.~o¢~/--3 ,,,~/~-/4.~:~ ,,~/~z~~. P.O. NUMBER: ~_~"o~p _ ~;. z I- PROJECT CONTACT: SAMPLER(S): (Signature) ~ O o- ~ ~ E~ COUNTY: LAB SAMPLE ~ z ANALYSIS SAMPLE CONTAINER NUMBER NUMBER DATE TIME SAMPLE LOCATION o O REQUESTED TYPE TYPE .?~l~?-~,q.l'~6-D- ''~ ..3:5 ~ " " -e~2-/N--~qo~.~ t'J6'3- ~o -~ :,.,~o ¢' ~b~"l~')-c,q~'7 ! N ~3-y- ,3,.0 10~ ,~,,3 ~, SPECIAL INSTRUCTIONS: POSSIBLE SAMPLE HAZARDS: 1. Relinquished by: T,Z¢'~,--,<~ ~ 21~,..,~.~. Daterrime: ~-.,3~.- ~/(~-.,'~ Received by: ,~.. ~Y)~',.~ Dal~q'ime: 7-2- C .- 1. Relinquished by: ,.~.~.~_Z~, Dateflqme' ?-.~r;. f,/ ~.'~)' Received by: J~c,/4.zt.,/ ~ Dal~Time: 1. Relinquished by: Date/Time: Received by:. Date/Time: CCR (Rev 7/90) WHITE: LABORATORY PINK: JOB FILE YELLOW: SAMPLE TRIP GROUNDWATER RESOURCES INC. Bakersfield. Califomia~l A RESNA ComPany CHAIN OF CUSTODY RECGnu Tol~Fax: (805) 83~7717 Telephone: (805) 835-7700 I.AB DESTINATION: PROJECT NUMBER: 3 30/-.3 ,z:~,~z~'4.-3~ A~',4cy77c~f14.. p.o. NUMBER: (~ ~-O ~- (c~ z ~ PROJECT CONTACT: o SAMPLER(S):(Signature) ~ ~ ~ E ~ !COUNTY: ~'~'~'~ I. AB SAMPLE ~ NUMBER NUMBER DATE TIME· SAMPLE LOCATION o oZ REQUESTEDANALYSlS SAMPLETYPE CONTAINER. TYPE SPECIAL INSTRUCTIONS: POSSIBLE SAMPLE HAZARDS: i. Relinquished by: Datefl3me: Received by: ... Dal~q3me: 3CR (Rev 7/90) WHITE: LABORATORY PINK: JOB FILE YELLOW: SAMPLE TRIP -' KERN cOUNTY ENVIRONMENTAl. HEA~.TH DEPARTMENT INVESTIGATION RECORD DBA' :~- OWNER' ~,DDRESS ADDRESS ASSESSORS' PARCEr. ~, CT CHRONOLOGICAl. RECORD OF INVEsTIGATIoN DATE I I MC: cd - . RACT OPTIONS FOR ! FAKING Site Specific Time Accounting Sheet Permit # ,.~ ~',,..c~..~ t..? . ~'Site Specific Status Changes: Employee#~ ,,_.~.. ~ ,_. Empl°yee Signature I~'~ ~ Site Name or Address (~/~.\{ .3~.'~.~J i'D ~-- Funding (Local, State, of F~r.al) Category Activity Hours Date Code Code Description (10ths) Notes: ,~.,,,._~ .. ¢¢~..~ .,,. Data Entered By: D~te: ......................... ~ .................. CONTRACT OPTIONS FOR LEAKING TANKS Site Speciti~ Time ~counting Sheet Permit # 0 ~ ~)~ L~- Site Specific Status Changes: Employee # c.:~ ~, Employee Signature ,~,~~...~(~ ' ' Site Name or Address h/~l ~t;~u~ ¢'~ ~.<..2 ' Funding (Local, State, of F~.~ I). Category Activity Hours Date Code Code Description /..~ ~ (10ths) ..... ' Uo~es: i[ Data Entered By: Date: Env, Health 580 4113 137 (REV. 5/89) CONTRACT OPTIONS FOR T,W. AKING TANKS Site Specific Time Accounting Sheet Site Name. or Address,~' Funding (Local, State, ~.f F~al) -. ' . ~:gory Activity Hours Date Code Description ( 10ths ) ., Notes: Data Entered By: Date: CONTRACT OPTIONS FOR· LEAKING TANKS Site Specific Time Accounting Sheet Permit # ~ ~~Ih q site specific status Changes: ~ite Name or Address6~ Funding (Local, State,. of F~i) Cat. egory Activity Hours Date uo~e Code DescriPtiOn ( 10ths ) l~tGs: Data ~ce~ed -By: Date: OPTIONS FOR LEAKING TANK~. Site Specific Time Accounting Sheet Permit # 0 ~O~ ~)~( -. Site Specific Status Changes: Employee Signature Funding (Local, State, of F~r~l) Cat~ egory Activity Hours Date ~c~e Code Description (10ths) Data Entered. By: Date: · '. CONTRACT OpTIONS FOR LEAKING TANKS Site Specific Time Accounting Sheet Permit # ~500 ~¢/ Site Specific Status Changes: Date ~eegOry Activity I Description Hours Code ( 10tbs ) KERN COUNTY. ENVIR°NMENTAL HEALTH SERVICES DEPARTMENT SERVICE. AND 'COMPLAINT FORM oat .....~..~ ........................................... [] Service [Request [] Complaint CT No.. ........................ Assigned to:....~/... .... : ....... ;'-':7 .......... .' ............. Location ....... ~ ................... J- ............................ ~ .................. ~ ......... ~ .............................. City .............................................. ~eportlng Person .......................................................................... AddreSs ...................................... ~ ............................... ~ ....... Phone ............................ ~o~er tY Owner .............~__~ ............... ~ ......................... Address._..~ ........... ~ ....................................................... Phone ........................... "' . -~ ' ~ ~ ~ Taken by ~ ~ . .i N V E ST I GATI 0 N..~;~~Z.~Z~-~ ....... ~...~..z~.---~ ......... : .............................. . Complainant notified Date ............................................. of results .................... ; ..... Investigated bY ......................................................................................... Environmental Health 580 4] [3 2~9' (Rev. 9/~9) WHILE YOU WERE OUT Telephoned Will' coil a~lain Holding on line # ....... : ..... Please call Long distance call Returned your call Came to' see you 'Waiting to see you PAS 580 1151 395-~00~ (R.3-86) Line of Equal "~ Ground Water Elevatlo-~'~ iROUND WATER FLOW DIRECTI(~N . NORTH 20 DEGREES EAST ' I 1 '~ ~0: concrete E.a.d bUilding ' MW-3~ foundation LEGEND .Ground Elevation gJJ~ Water Table Elevation MW-l: 404.30' 58.70' 345.60' MW-2: 404.15' 58.55' 345.60' MW-3: 404.40' 58.50 345.90' Gradient: .5'/lOO' Flow Direction: North 20 Degrees East SCALE' 1" - 25' ~IF~',~~ MAINLAND PACIFIC DEVELOPMENT CO. PLATE R~~~~ (Old BIG VALLEY TRUCK STOP Site) Environmental Solutions 3115 PIERCE ROAD Through Applied Science, BAKERSFIELD, CALIFORNIA ' Engineering & Construction PROJECT NUMBER: 3801-3 GRADIENT PLOT SAMPLE , Lab ~ld ~ ~..--~'-- - o '"' > m ~ SOIL DESCRIPTION TPHd ~ ~ ~ o - Ce~nl ~ 0 -- -- SM Sand - ~d bm, pre~ In - c~ grain (80%), slay _ _ _ (20%), da~. no Odor _ 0 ~ ~ MW-l-5 SM' Sand-NA -- 0 ~ ~ MW-l-10 SM Sa~ - ~A -- 0 ~~ MW-1-15 SM Sand-NA ~ 0 ~ ~ MW-I-20 S~ Sand - ~d brn, In - v cm grn (90%), si si~y (10%), -- ND -- -- ~ ~ist, no ~or ' _ 0 ~~ Mw-,-25SM S~.d-~A -- ~ 0 --~~ MW-l-30 SM S~d-NA _ ND ~ _ _ 0 ~ ~ MW-,-3~ SM S~d-~ _ 0 ~ ~ MW-1 ~0 GM Gravelly silly sand - graveb (3¢~), w/In - v ~, -- ~ ~ ~d brn sand (~%), silly (20%), mlsl, no odor _ 0 ~ _ MW-I~5 GM GraveDy silly sand * NA LOGGED BY: TAM DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-26-9! WATER ENCOUNTERED AT: 58.70' · · TOTAL DEPTH: 72 leer SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacill¢' PLATE RESNA/GROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Stop (805)835-7700 environmenlal/geotechnical selvices 1 2 ,. BORING LOCATION: west of Pdor Tank Cluster PROJECT NUMBER: 3801-3 ~' LOG OF BORING MW-1 · page, of, Lab Field ~ > m ~ ? SOIL DESCRIPTION 0 ~ :3. d IPHd ..J z ppm m .nm. _z ~. _~ Cemont _~ 0 : -- -- I MW-l-50 GM Gravelly silly sands', gravels 130%1. w/fn - v ~ -- ~ crs, rned bm sands (50%), silly (20%); wel, m ~ m no odors ~__ ~ 0 m I -- 0 ~ I MW-l-60 GM Oravolly silly sand~- N^, saluraled __ 0 ~ I MW-l-70 GM NA LOGGED'BY: T/~ DIAMEIER OF BORING: 6-1nth DATE DRILLED: 7-26-91 WATER ENCOUNTERED AT: 58.70 feet IOTAL DEPIH: 72 Iool SAMPLING METHOD: DRILLING COMPANY: RESNA RESNNGROUNDWATER RESOURCES, INC. PROOECT NAME: Mainland Paci~ie' PLATE (805)835-7700 SITE NAME: Big Valley Truck Stop· environmenlal/geoleChnical services 12 BORING LOCATIONi West of Prior Tank Cluster PROJEGT NUMBER: 3801-3 -. LOG OF BORING, MW-1 iPage2ol2 ,.. Mainland Pacillc. Pierce Road Bakersfield Waler Monitoring Well MW-1 Box ',,Locking Cap Neat Cement Blank Casing (52'- surface) 2' PVC 40' 72' Seal· 5' Perforaled Casing, 2- dia 6' .020' slots (72'- 52') '~' 58' Waler lable 14' *Sand pack, #2/12 Botlom Plug I ~ SAMPLE' ' .~ ~ z~ m ~ SOIL DESCRIPTION ..... 1. ~ Asphalt _ 0 ' -- SM' Sand. ~d brn'.'pred In - crs grain (80%). slay -- ~ ~ (20%), da~, nb odor -- 0 ~~ MW-2-5 SM Sand* NA -- 0 _ 0 . ~ ~ MW-2-15 SM Sill - ~d bm, Ir sand (I 0%) si'clayey (10%), 'si ~ ND 20 ~ -- ~ MW-2-20 SM ~' Sand - ~d'brn~ In - v ~s gm si le~g (80%), slay 20-- -- ND -- -- 40 ~ -- gm, ~d bm sand (50%), silly (20%), ~lsl, no _ ~or -- 0 ~ ~ MW'2-45 GraveDv sillv sand - NA L~GED BY: TAM DIAMETER OF BORING: 6-1~h DATE DRILLED: 7-29-91 WATER ENCOU~ERED AT: ~.55 feet TOTAL DEPTH: 70 leel SAMPLING METHOD: DRILLING COMPANY: RESNA RESNNGROUNDWATER RESOURCES, INC. PR~ECT NAME: Mainland P~iI~ PLATE (805)~5-7700 SITE NAME: Big Valley Tm~ Slop environmenla~g~l~nEal se~i~s 13 PROJECT NUMBER: 3801-3 BORI~ LOCATION: West °l Pdor Ta~ Clusler - LOG OF BORING MW-2 pagelof2 ~ SAMPLE . Lab Field z .-. ~ .~ 0 ~ rr' o. > m ~ SOIL DESCRIPTION ppm m - . .~ Cement "' . __-- 0 -- -- I MW-2-50 GM Gravelly silly'sands - -, _ ND__Nn 0 _~_ I MW-2-55 GM Gravelly silly sands - A/A -- 0 ~ I MW-2-60 Gilt Gravelly silly sands - NAo saluralod .-. 0 -- -- I MW-2-65 GM Gravely silly Sands - NA _ 0 ' ~ I MW-2-70 GI~ 'Gravelly silly sands - NA LOGGED BY: TAM DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-29-91 WATER ENCOUNTERED AT: 58.55 feet TOTAL DEPTH: 70 feet SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacillc PLATE RESNNGROUNDWATER RESOURCES,.INC. SITE NAME: Big Valley Truck Slop (805)835-7700 environmental/geotechnical sen/ices' 13 BORING LOCATION: Norlh el Islands PROJECT NUMBER: 380i-3 " LOG OF BORING MW-2 page2of2 ., Mainland Pacific, pierce Road ~ Bakerslield Water Moniloring Well MW-2 Well Box ,,,,,,,,, Neat Cement Blank Casing (52'- suHace) · ' ' ' ',' 2- PVC 38° ,,, 5' Benlonile 70' Seal 5' Perforated Casing, 2' dia 8' .020" sloL. I (70' 50') Waler lable 12' Sand pack, #2/12 ..... Bottom Plug ENVIRONMENTAL HEALTHSERVICES DEPARTMENT STEVE McCALLEY, R.E,H.S.. ' · 2700 "M" Street, Suite 300 DIRECTOR Bakersfield, CA 93301 (805) 861-3636 (805) 861-3429 FAX August 2, 1993 Mr. Calvin Okeya Mainland Pacific Development P. O. B°X 661208 Los Angeles, CA 90066 SUBJECT: Location: 3115 Pierce. Road, Bakersfield, CA Known As: Big Valley Truck. Stop Permit #: 050064 Dear Mr. Okeya: This Departmefit has', reviewed the. sample results of the remediation (aeration) sUbmitted by Advanced Environmental Concepts Inc., on behalf of the above-referenced facility. The request to return the treated soil to the excavation, and for a closure of the site is acceptable to this office. The application and procedures, for destruction of the two (2) monitor wells on the property is also acceptable to this Department. Please notify this office'48 hours prior to the commencement of the destruction in order that the work can be witnessed. After the monitor wells have been-properly destroyed, a closure letter may be issued for this facility.. If there are any further questions, please do not hesitate' to call me at (805) 861-3636, Extension 566. Sincerely, Steve McCalley, Director By: ggs, R.E.H.S., R.E.A. : Hazardous Materials Specialist II Hazardous Materials Management Program MD:ch cc:' Joseph A. Dunwoody, III - AdVanced Environmental C0neepts, Inc. File drigss~okeya.let - .. -ADVANCED ENVIRONMENTAL cONCEPTS INC- July '16, '1993 Mr. Michael Driggs ~'~ Kern County Environmental Health. Department 2700 "M" Street, Suite 300- Bakersfield, CA 9330'1 · RE: MOnitoring Well Abandonment Big Valley Truck Stop 3'1 '15 Pierce Road Bakersfield, CA Dear Mr. Driggs, Please fired attached an application to abandon the groundwater monitoring wells located at the above referenced site. It is Advanced Environmental Concepts, Inc'. [AEC's] understanding that " only two [2] wells remain at the site; however, if additional wells are discovered they will also be abandoned. AEC proposes to abandon the wells by grouting them from bottom to top, via a grout pipe, with neat cement. Boring logs and well construction diagrams are attached. If you should have any questions, please do not hesitate to contact our office at 83'1-'1646. Sincerely, Advanced Environmental Concepts, Inc. / Operations Managl~r, R.G. #5504 JAD:dji Encls. cc: Mr. Calvin Okeya . * ENV!RONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 * BAKERSFIELD. CA 93313 805/831-16f46 . · FAX 805/831-1771 MOHITORINI3 WELL APPLIC~?"' ,.] vrRo viE] rrAL HEAL SE V]C ,,, ,, .,, . ~ARDOUS ~R~ ~AGE~ PROO~ AppH~tlon Date 27~ "M" ST~ET, SU~ 3~ No. of WelU, B~RSF~, CA 93301 p~ No.' Circle One: CONS~U~ MOD~ For ~ce Use Only ~ FAC~ ~FOR~TION' PwJ~t ~mct: Cal.vin. okeya . Phone: (310) '821-9229 'T~ec: Fmcl~ Name: .Big Valley T~c~ S topFa~lU P~o~: None ~sl ~t~t: Gillmore ~d~:_3115 Pierce Road CI~: Bakersfield ~ 93301 O~e;: Mainland Pacific Pb~e: (310) 821-9229 %dd~l: 12536 A~iral Avenue' Ci~: Los ~geles ~: 9~66 I I I I I I I I II I ' "] ]N O T[O -- ~ I I I III I I _ ~oam~l ~mlm~or: Advanced Enviro~ental Concepts, Inc. P~OB~: .(805 ) 831-1646 ~d,~:. 4400 As~e Rd~ ~206 ~: ~kersfield . ~p:. 93313 .. D~[III~ ~tmcto~: Melton Drilling " P~o~a: (805) 589-0521 ~d~: 7101'Do~ing Ayenue . CI~ Bakersfield , ~p: 93308 Ll~e No. ~a~ ~e: C-57 ~508270 W.C, No.: 598~0202 C. BNV~ON~NT~ ~FOR~T[ON I I ' I '' I II I_ L[t~olo~ ~ R~l~wed My: Joe Dunwo~y R~B~atloa Ho.: R.G. ~5504 . ~ I I I I . II . I '. . I II I D. PRO~ ~FOR~ON DrflHa~ ~t~od; See attach~ for a~ndonment methods ~tl~ Op: Manager Date:_ July 16 ~ 1993- NSTR~' .,ON INFORM,~Ir'N DRILLINO ~OD N/A I I Il I ........ mil I I WELL 1 WELL 2' WELL 3 WELL 4 ~!~!~ DEPTIt 70, .. 70' .. OROI/ND PI~VATION (n, XNOWN) BORP~OLE DIAMETER.' "' 8" 8" CASINO-INSIDE DIAMETER 2" 2" C~INO MATERIAL PVC PVC & OAUGB Sch. 40 Sch. 40 SCREEN MATERIAL evc evc & OAUOE . Sch. 40 · Sch. 40 T~E OF R~'~"Olh~l~ .5' Plug' 5' Plug, · PLUO & DEPTH 40 - 45' 40 - 45 ANNUI~.S~ ~ement Cement I~TERI~ & DEPTIt 40. - o' 40 - 0' I~IL~ PAC'K Sand sand MA~ & SIZE #2/12 #2/12 SCREEN SLOT SIZE o. 020 o. 020 & t.~NOTIt · 20' 20' Smu. ANT PLACm~m~ METItOD Trome Treme LOCKING WELL. CAP L' ' "' I II II · ' ,' ,,, II FAClI2~ PLOT PLAN ProvMe a d~¢dption of the f~ilit~ to be monitor,d, including: location'of tanla, proposed monitoring and pla~mcnL near~t st~¢ct or intem¢,tion, location of water w~lh or s-ffa,e wamr l~dthln ~00' ~di~ o£ h~ffi~. · Ple~e attach. ~LL DIMENSIONS' Pr~do a detafl~ dra~s of ~ll(s)~ ~clude: depth of well, ~fng.. length, sme~tet pack len~ ~ulnr ~nlan~, ~d ZONE OF ~U~CE lnfomatl0n on mae of Influence, such ~ mathematical calcul~tlom or field t~t data, V~O$~ ZONE ~L~ may b~ requked upon renew of th~ nppH~flon.. ~O~ If ~ppli~flon h no~ ~o~l~t~ R m~ b~ returned. HMI23 SAMPLE Lab Field ~ .-. ~ · o ~ ;~ o ~' :> · '~ SOIL DESCRIPTION TPHd z ~ q ~m. ~ ' Ce~nl ~ 0 ~ ~ SM Sand -med brn, prod In, ~ grain (80%), sl~y _ ~ ._ (20%), da~, no odor -~ .: 0 ~ _ MW-l-5 SM Sand - NA -- 0 . ~ -- ~ MW-l-10 SM Sand-~A · -- 0 ~~ MW:I:~5 SM Sand - NA _ ~ 0 ----~ MW-l-20 SM Sand-~dbrn, ln-vcmgrn(90%),slsl~y(10%), .~ ND -- -- -- ~lsL no ~or _ 0 ._ ~ · MW-1-25 SM Sand - ~A -' ~ ' o ~ ~ uw-~-~o SM Sa.d-~A -- 0 --.' --~ MW-l-35 Sb Sand - ~A _ ' 0 ~ ~ MW-1 ~0 GM Gravelly silly s~d - graveb (3~/~), w/In- v ~. -- -- ~ ~ brn sand (~%), sll~ (20%), ~lsl, no odor ._ 0 _ ~ MW-I ~5 GM Gravely slay sand - NA LOGGED BY: TAM. DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-26-91 WATER ENCOUNTERED AT: 58.70' TOTAL DEPTH: 72 leel SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacill~ PLATE RESNNGROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Slop (805)835-7700 environmenlal/geolechnical services . 12 BORING LOCATION: West of Prior Tank Cluster PROJECT NUMBER~ 3801-3 .~ " LOG OF BORING MW-1~ page I · ' SAMPLE Lab Field ~ ~ · °;==r-" > m '~ ~ .SOIL DESCRIPTION Benzene P.I.D. TPHd ~ ~ z o . Ce~nl 0 -- -- ~ MW-1-50 GM Gravelly silly sands - gravels (30%). w/In - v -- -- -- cm~ ~d brn sands (50%). silty (20%), wel. ~ -- -- no odors _ ~ND. 0 _ _ ~ MW-1-55 GU Grave~yslllysan~-~A , ~ 0 ,, ~ ~ MW-1-60 GM Gravelly silly s~ - ~A, saluraled' L~GED BY~ T~ DIAMETER OF BORING: 6-1~h DATE DRIL~D: 7-26-91 WATER ENCOU~ERED AT: ~.70 leel TOT~ DEPTH: 72 leal SAMPLING METHOD: DRILLING ~MPANY: RESNA RESNNGROUNDWATER RESOURCES, INC. PR~ECT NAME: Mainland paCil~ PLATE (605)835.7700 SITE ~ME: B~ VNley T~k Stop environmenlaVgeolechnical sewices 1 2 BORING LOCAT~N: West ol Prior Ta~ Cluster PROJECT NUMBER: 3801-3 LOG OF BORING, MW-1 [page2ol2 Mainland Pacillc, Pierce Bakorslield Waler Monitoring Well MW,1 BOX Locking Cap Concrete Neat cement Blank Casing (52' - surface 2' PVC 40' 72' Seal Perforaled ,Casing, 2- dia 58' ~ 6' .020' slols (72' ~ 52') Waler lable 14' Sand pack, #2/12 Botlom Plug i SAMPLE ' ' -- Lab Field ' :2 SOIL DESCRIPTION TPHd -'z -i Asphalt · Sand - meal bm. prod In - crs grain (80%). silty' (20°/.). damp, no odor MW-2-5 Sand -/VA MW-2-10 Sand -/VA MW-2-! 5 Sill - reed bm, ir sand (10%) si clayey (10%), si' plasl, molsl, no odor ND MW-2-20 Sand - meal bm, In - v crs gm si lerrug (80%), silty , (20%). moist, no odor MW-2-25 Sand - A/A MW-2-30 sand./VA · MW-2-35 Sand - A/A ND MW-2-40 Gravelly silly sand. gravels (30%), w/In - v crs gm, med bm sand (50%), silly (20%), moist, no odor MW-2-45 Gravelly silly sand -/VA · PROJECT NAME: Mainland Pacific PLATE' (805)835-7700 SITE NAME: Big Valley Truck Slop I environmental/geolechnical sen/ices ~ BORING LOCATION: West of Prior Tank Clusler 1 3 LOG OF BORING MW-2 · page $ of 2 ,, ~ ~ SAMPLE = o > · ,,', i'~ SOIL DESCRIPTION Cement '"' ~ -- I GM Gravelly silly Sands - ~/A _- o _ _ MW-2-SO -- -- ,.riND 0 -- -- I MW-2-55 GM Gravelly silly sands - NA 0 ~ I MW-2-60 OM Gravelly silty sands - A/A, saturated _ 0 ~ I MW-2-65 GM Gravelly silly sands NA '" _ 0 ~ l MW-2-70 GM Gravelly silty sands- AJA LOGGED BY: TAM DIAMETER OF BORING: 6-Inch DATE DRILLED: 7-29-91 .WATER ENCOUNTERED AT: 58.55 leel TOTAL DEPTH: 70 feel SAMPLING METHOD: DRILLING COMPANY: RESNA PROJECT NAME: Mainland Pacific PLATE RESNNGROUNDWATER RESOURCES, INC. SITE NAME: Big Valley Truck Slop (805)835-7700 :, environmenlal/geolechnical sen/ices BORING LOCATION: North el Islands ' 13 PROJECT NUMBER: 3801-3 LOG OF BORING MW-2 page 2o!2 Mainland Pacilic, Pieme Road Bakerslield Water Monitoring Well' MW-2 Well Box Locking Cap Concrete Neat Cemenl Blank Casing (52'- surface) 2' PVC 38' · 70' Seal 5' Perforated Casing, 2' dla 8' .020' sloL,~ (70'- Waler lable 12' .Sand pack, #2/12 Boltom Plug i -ADVANCED ENVIRONMENTAL CONCEPTS INC- July 45, 4993 Mr. Michael Driggs Kern County'Environmental Health Department . 2700 "M" Street, Suite 300 Bakersfield, California 93304 RE: Confirmation of Remedicrlion - Soil Sample Results Big Valley Truck Stop 3445 Pierce Road Bakersfield, California Dear Mr. Driggs, Please find enclosed a description of the confirmatory soil sampling event performed on June 22, 4993, anda request for site closure, at the Mainland Pacific site [Big Valley TrUck Stop] located at the 3445 Pierce Road [Figure Soil SamPle Collection Methodoloc~¥ The following sampling protocol was observed: ' The shovel was used to remove 6 to '12 inches of soil from the top of the pile and "loosen the excavated area for collection; 2] . A Qualified AEC representative PUshed a 400-milliliter Quorpac jar into the soil, leaving no head .space in the jar; 3] · The cap was sealed with duct tape, and the jar labeled and stored in a cooler chilled with cracked ice; .4] The soil samples were recorded on a chain-of-custody document to ensure sample integrity and traceability; 5] The Soil samples were delivered to the laboratory where they were subsequently analyzed the following day; 6] Analytical tests for diesel range 'constituents were undertaken bY Associated Laboratories, a California-certified laboratory located in Orange, California. Soil Sample Loccrlion . The remediated soil pile was divided into six sections. Two soil samples were collected from each subsequent section following the above stated sampling protocol. Soil sample locations are presented on Figure 2. · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · Confirmation of Remediation Advanced Environmental Concepts, Inc. Big Valley Truck Stop Analytical Results The soil samples were submitted to Associated Laboratories, 'where the two samples from each section were composited together, resulting in six composite samples, and analyzed for TPH-d utilizing CA DHS methodologies. Analytical results are presented in Table t. Laboratory ·data · sheets and chain of custody documentation are attached.. TABLE 1 AnalytiCal Results - Soil Samples 6/22/93 [ppm] TPH-d ' ' Analyses CA DHS Sec. I~IB 201 Sec. 2AJ2B 243 Sec. 3AJ3B Sec. 4AJ4B '154 Sec. 5AJ5B · Sec. 6A/6B De~ection Limits 50 ConclUsion and Recommendations Based on the laboratOry data received, AEC concludes that the original diesel conc~entrafiOns in the soil which recorded a high of 44,400 ppm and an average concentration of 3'170 ppm have been successfully remediated to concentrations with a high of 246 ppm and an average concentration of 172 ppm. Based on the Laboratory data received, AEC formally request closure for the Big Valley Truck Stop site located at 3'1-15 Pierce Road, Bakersfield, California. Additionally, AEC request authority to return the treated soil to the excavation. If you should have any questions, please do not hesitate to contact our office at 834-4646. sincerely, AdvanCed Environmental Concepts, Inc. ~/' Ope'rations Manager, ~r.G. #5504 cc: Mr. Calvin·Okeya · ENVIRONMENTAL CONCEPTS WITH DESIGN tN MIND * 4400 ASHE ROAD. #206 °. BAKERSFIELD· CA 93313 ' 805/831-1646 o F.~X 805/831-1771 ~ Zlngo's Truck Perking Area '" 5A 5B 6Ac · 3B · ~ · lB 2A 2B [ 0 10~0~040 ~0 · SAMPLE LOGATION · ,ADVANCED ENVIRONMENTAL CONCEPTS INC' Big VaJley TrUck Stop 2 /' 3115 Pierce Road ~/.3~.~. .oo~ mae ~ County of Kern - Bakersfield, Calffomla FAX 805 / 831.1/"/t BAKERSFIELD, CA 933 t 3 ASSOCIA D I..ABO RIES " 806 Nort]~ Batavia - O~ange, ~alifornia 92668 - 714/771-6900 ~ FAX 714/538-1209 CLIENT Advanced Environmental Concept (4283) LAB NO. G55508 Attn: Jon Buck REPORTED- 06/30 / 93 4400 Ashe Road suite #206 · Bakersfield, CA 93313 RECEIVED SAMPLE Soil 06/25/93 IDENTIFICATION Big Valley Truck Stop 3115 Pierce Road, Bakersfield, CA BASED ON SAMPLE As Submitted Total Hydrocarbons (TPH DHS) (Diesel). Comp. of SEC-iA & SEC-lB 201 mg/kg Comp. of SEC-2A & SEC-2B 213 mg/kg Comp. of SEC-3A & SEC-3B 216 mg/kg Comp. of SEC-4A & SEC-4B 154 mg/kg Comp. of SEC-5A & SEC~5B 119 mg/kg Comp. of SEC-6A & SEC-6B 126 mg/kg Date Analyzed: '06/28/93 ASSQGI ,~. D ~R. IES, by: E~wa~~'/~/~'S~,. ~ehMre' Ph.D.~~ Vice President ESB/qi NOTE: Unless notified in writing, all samples will be discarded by appropriate disposal protocol 30 days from date i.'ireported. TESTING & CONSULTING Chemical. The reports of the Associated Laboratories are confidential property of our clients and Microbiological · may not be reproduced or used for publication in part or In full without our written permission. This Is for the mutual protection of the public, our clients, and ourselves. E/3Wro/3n3erlto! '. C-1 IOM I' ASSOCIATED LABORATO E5 · COMMITMEN]' TO ~UAIIIY ° QUALITY CONTROL/QUALITY ASSURANCE REPORT G55508 QA/QC CONTROL NO. G55607 INSTRUMENT LOGBOOK D #4 DATE G55607 ANALYZED Jun 28 1993 LL.B. PAGE LOCATION 188 DATE G55508 'ANALYZED Jun 28 1993 SAMPLE LOG PAGE LOCATION 19 EPA 8015M/D.H.S.L.U.F.T. REPORT/NO uNrrs mg/kg SAMPLE MATRIX soil COMPOUND SR SR1 RPD $.A. SSR $SRI %RE %RE1 RPD GASOLINE SRo-- sAMPLE X 0 SR i---- SAMPLE DUPLICATE · RPD--- RELATIVE PERCENT DIFFERENCE S.A.--- ANALYTE SPIKE IN SAMPLE MATRIX SSR-:-- SPIKE RECOVERED AND SAMPLE 'SR'. SSRI--- SPIKE RECOVERED AND SAMPLE 'SRI' %RE--- PERCENT RECOVERY OF SPIKE IN 'SR' %REI--- PERCENT RECOVERY OF SPIKE IN 'SRI' BLK--- ANALYTE CONCENTRATION DETECTED IN LAB BLANK 99% .... UPPER/LOWER CONTROL LIMIT 95 %-~- UPPER/LOWER WARNING LIMIT s ...... STANDARD DEVIATION 2s----- 2 x STANDARD DEVIATION (WARNING LIMIT) 3s .... 3 x STANDARD DEVIATION (CONTROL LIMIT) MEAN- TIME WEIGHTED AVERAGE OF SPIKE RECOVERY SURROGATE SPIKE DATE BENZENYL FLUORIDE SPIKE CONCENTRATION OF WITH A RECOVERY OF BENZENYL FLUORIDE RECOVERY LIMITS OF TO /'~/")~-, DATE TYPED Jun 30 1993 B133201 PASS / NO PASS ACTION TAKEN SPIKE SOURCE STANDARD LOT NO. Do QA /QC COMPILER Quat CHAIN-OF-CUSTODY RECORD .. ~ADVANC~ ~v~NTAL c~CEPTS CHAIN-OF-CUSTODY RECORD . . "' LAB Prolect ti ~I~ ', ~ ~', ~.~. ~ ~, ~ ; I, .~ ~3/2 ~, /~ ~ ~-- · ...- ~ - , ~~ =_. '- ~ C~ll~ Y~ /.~ ~ ~~ h. ~ "~ Y~ / NO ~,~ ~ .... ~-~-- ~ ~",~ ~c-4 -~ A /.~ ~..-v~...~. ~ ~ ~ : i ENVIRONMENTAL HEALTH SERVICES DEPARTMENT STEVE McCALLEY, R.E.H.S. ~ ~~i 2700 "M" street, Suite 300 DIRECTOR Bakersfield, CA 93301 ! (805) 861-3636 ~~i'"' (805) 861-3429 FAX Joseph A. Dunwoody III ADVANCED ENVIRONMENTAL CONCEPTS, INC. '4400 Ashe Road, #206 Bakersfield, CA 93313 · SUBJECT: Confirmation Soil samPles Big Valley Truckstop 3115 Pierce Road, Bakersfield, CA . PERMIT~No. 050064 Dear Mr. Dunwoody: This Department is in receipt of your letter.of June 10, 1993' Your proposal and.methodology to collect confirmation.samples at the above-referenced Site is approved. Please advise this office 48 hours prior to commencing with the sampling. If there are any further questions, please do not hesitate to call me at (805) 861-3636, ext. 566. Sincerely, Steve McCalley, Director BY: Drigg .H.S R.E.A. Hazardous Materials Specialist II Hazardous Materials Management Program MD:jg cc: Calvin Okeya - Mainland Pacific Development File ·-ADVANCED ENVIRONMENTAL CONCEPTS INC- ~~- ' June 40, 4993 - Mr. Michael Driggs Kern County Environmental Health Department 2700 "M" Street, Suite 300 Bakersfield, California 9330'1 RE: Confirmation Soil Samples Big Valley Truck Stop 3445 Pierce Road Bakersfield, California Dear Mr. Driggs, It is the opinion of Advanced Environmental Concepts, Inc. [AECi }hat the bioremediation project conducted at the above stated site is now complete. AEC respectively requests that conformation sampling be performed and the site submitted for closure. AEC proposes the following sample methodology: The remediated soil pile will be divided into approximately 6 quadrants; 2. Collect 4 samples from each quadrant; and 3. Submit each 4-sample group to a State Certified laboratory for compostioning and analysis for TPH-d. All samples will be collected in accordance with AEC Sampling Protocol. .. If you should require additional nformation, please do not hesitate to contact our office at 834- 4646. . Sincerely, Advanced Environmental Concepts, Inc. //OS~9/~/~. 'Dun~oody, 17~#,5,504 ..,/. Opel'ations Manger D/ JAD:dji · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400ASHEROAD.#206." BAKERSFIELD. CA93313 805/831-1646 · FAXS05/831-17:71 RESG. RCE MANAGEMENT , CY ' ~ Environmental Health Services DeI~artment RANDALL L. ABBOTT STEVE McCALLEY, REHS, DIRECTOR DIRECTOR Air Pollution'Co~trol District DAVID PRICE III ~LUAM J. RODDY, APCO ASSISTANT DIRECTOR Planning & Development Set~ces Department TED JAMES, AICP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT May 22, 1992 Calvin Okeya MAINLAND PACIFIC DEVELOPMENT P. O. Box 661208 Los Ange!es, ' CA 90066 SUBJECT: Location: 3115 Pierce Road, Bakersfield, CA Known As: Mainland Pacific Development/ Big Valley Truck StOp Permit #: 050064 Dear Mr. Okeya: This Department has. completed a preliminary review of the remediation action implemented by Advanced Environmental Concepts, .Inc. at the above-referenced facility. Analysis of the sample taken at the 36-foot level from floor of excavation demonstrated a level of TPH-d still remained. Before a closure letter will be considered for this site, this · Department requires water samples be obtained from the existing monitoring wells. This .action is in concurrence with the State Regional water Quality Control Board. If there are any further questions, please do not hesitate to' call me at (805)861-3636, ext. 566. Sincer · L ials Specialist II Hazardous MaWr MD: jg cc: Christian R. Bellue - Advanced Environmental Concepts, Inc. File 2700 "M" STREET, SUITE 300 BAKERSFIELD, CALIFORNIA 93301 : (805) 861-3636 FAX: (805) 861-3429 'ADVANCED ENVIRO'NMENTAL CONCEPTS INC' June Mr. Michael Driggs Kern County Environmental Health Department 2700 "M" Street, Suite 300 · Bakersfield, California 9330'i' Regarding: .Excavation Remediafion Report Former Big Valley Truck Stop Dear Mr. Driggs: Advanced Environmental Concepts, Inc. [AEC] was contracted by Mr. Calvin Okeya of Mainland Pacific Development Company, to prepare the excavation remediation report for the above referenced location. Enclosed please find that report, which AEC is submitting for review. Should you have any questions or require clarification on' any aspects of the enclosed, please do not hesitate to contact our office at [805] 83~-'i646. : Respectfully yours, AdvanCed Environmental Concepts, Inc. ..J~y E. Ashby ,..~' ' reject Coordina/~/Office Administrator Attachments: Report ['ii Distribution: 'l/Addressee - REGULAR MAIL 2/Mr. Calvin Okeya - REGULAR MAIL 'i/Bksfld' Fi le · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · '4400 ASHE ROAD. #206 ' BAKERSFIELD. CA 93313 805/831-1646 ' FAXS05/831:,1771 · ADVANCED ENVIRONMENTAL CONCEPTS INC- EXCAVATION REMEDIATION REPORT. for Mainland Pacific Development Company Former Big ValleY Truck Stop 3115 Pierce Road County of Kern - Bakersfield, Califomia June ~992 -ADVANCED ENVIRONMENTAL CONCEPTS INC= Advanced Environmental Concepts, Inc. is pleased to present the tallowing: Excavation Remediation Report for Mainland Pacific Development Company Former Big Valley Truck Stop 31 t5 Pierce Road Courtly of Kern · Bakersfield, California This report has bccn prepared for: Mr. 'Calvin Okeya, Mainland Pacific Development Company Prepared: June 1992 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 * BAKERSFIELD. CA 93313 805/831-1646 * FAX 805/831-1771 ~ Excavatlor Remediatlon Report Advanced Environmental Concepts, Inc. Table of Contenls Sublect · Pace' 1.0 INTRODUCTION I 2.0 BACKGROUND I 3.0 SITE CHAI'6~,CTERISTIC. S ~ 3 3. I Site Description 3 3.2 Regional Geologic Profile 3 3.3 Local Geology and Hydrogeology 3 4.0 SOIL EXCAVATION PROCEDURES '4 5.0' ANALYTICAL RESULTS 5 6.0 GROUNDWATER SAMPLING 6 7.0 CONCLUSIONS 8 8.0 RECOMMENDATIONS. 8 9.0 LIMITATIO.NS 8 10.0. CLOSING .9 ApPendices: (A) Project Maps/Figures 'Figure t: .Site Location Map Figure 2: Site Map Figure 3: Excavation Map Figure 4: Stockpile Sample Location Map. . (B] Laboratory Reports/Chain-of-Custody Documents [C] Groundwater Parameters Project: AEC 92P-t t62 · ENVIRONMENTAL CONCEPTS WITH DESIGKI tN MiND * 4400 ASHE ROAD. #206 * BAKERSFIELDi CA 93313 805/831-1646 · FAX 805/831-1771 Excavation Remediation Report Advanced Environmental Concepts, Inc. 1.0 INTRODUCTION This report documents methOds Used to excovote ond oerote diesel-impocted soil, confirmotory soil sample collection procedures, groundwater sampling procedures, and analytical results. Advanced Environmental Concepts, Inc. [AEC] Was contracted by Mr. Calvin Okeya of Mainland Pacific Development Company to' direct this excavation project. The subject site was formerly operated as Big Valley Truck Stop, 311'5 Pierce Road, Bakersfield, California [Appendix A, Figure Contained iri this report is background Information regarding existing site characteristics, regional and local hydrogeological profiles, and the project history. Also included in the following sections are the objectives and Scope of investigation, detailed i.nvestigative procedures, and subsequent findings. Finally, AEC provides an. evaluation of said findings and makes recommendations for the continued aeration of diesel impacted soil. The report appendices contain project maps and figures [Appendix A), Laboratory Reports/Chain- of-Custody documents [Appendix B], and groundwater parameters [Appendix Cl. 2.0 BACKGROUND In April 1990 and February 1991, two 12,000-gallon diesel underground storage tanks lUSTs] and one 1,000-gallon waste oil UST, respectively, were removed from the site I~y Whitten Excavation. Samples collected below the removed tanks exhibited total petroleum hydrocarbon ('i'PH) concentrations less than the State Recommended Action Level [RAL)of I00 parts per million [ppm] for soil. However, the samples collected beneath six diesel dispenser islands contained TPH levels in excess of. the State RAL. On October 17, 1991,'. RESNA submitted to the Kern County Environmental Health Department '[KCEHD] a site assessment report defining the lateral and vertical extent of diesel-impacted soil in the vicinity of the diesel dispensers at the subject site. The repart Indicates that diesel-impacted soil is present beneath dispensers I, 2, 3, 6, and in the vicinity of monitoring well MW-3. The deepest vertical migration of diesel-range hydrocarbons was documented by RESNA in boring NB-1 at 35 feet below grade.level [BGL] [Appendix A, Figure 2]. The RESNA report also states that an earlier investigation was conducted at the site in t987 by an unidentified consultant. This limited assessment revealed a hydrocarbon-impacted, water-bearing zone'at approximately 20 feet BGL in the vicinity of dispenser 4. Data obtained from three groundwater monitoring wells installed by RESNA during the October, 1991 investigation Indicates that an unconfined water table is located approximately 58 feet BGL. Water samples collected from these wells during the investigation contained non-detectable levels of TPH-d and BTXE. Laboratory results of soil samples collected from six exploratory borings during the RESNA site assessment are summarized below in Table I, RESNA Soil Sample Results. Units are In milligrams per kilagram [mg/kg] which are equivalent to parts per million [ppm]. Project: AEC92P-1 t62 1 · ENVIRONMENTAL CONCEI~TS WITH OE$1GN iN MINE) · 4400ASHEF~OAD.#206 ' E~AKERSFIELO. CAg3313 805/'831-1646 ' FAX 805/831~1771 Excavation Remedlafion Report Advanced Environmental Concepts, Inc. Table t - RESNA Soil Sample Resull~ . 'Xylenes, TPH-d BenZene Toluene Total Ethylbenzene Sample ID EPA 3550 EPA 8020 EPA 8020 EPA 8020. EPA 8020 NB-l-10 : 2,600 ND ND 0.69 ND NB-I-20 2,300 ND ND t .2 ND NB-I-30 5,200 ND ND 0.90 ND NB-t-35 130 ND ND ND ND NB-I-40 ND ND · ND ND ND NB-t-45 ND ND ND ND ND NB-2-10 t 1,400 ND 0. I 3.0 0.8 NB-2-20 2,900 ND ND ND ND NB-2-30 ND ND ND ND ND NB-3-5 9,100 ND 0.2 3:2 0.9 NB-3-10 7,400 ND 0.5 4.6 t.0 NB-3-20 ND ND ND ND ND NB-4-5 ND. ND 'ND ND ND NB-4-10 ND ND ND ND ND NB-4-20 ND ND ND ND ND NB-5-5 ND ND ND ND ND NB-5-10 ND 'ND ND ND' ND NB-5-20 ND ND ND ND ND NB-6-5 3,600 ND ND ND~ ND NB-6-10 ND ND ND ND ND NB-6-20 ND ND ND ND ND MW-.I-20 ND ND ND ND ND MW-I-30 ND ND ND 'ND ND MW-2-20 ND ND ND ND ND MW-2-40 ND ND ND ND ND ' MW-3- I 0 2,600 ND ND ND ND MW-3-20 ND ND ND ND ND MW-3-30 ND ND ND ND ND MW-3-40 ND ND ND ND ND ND: Non-detected The analytical results indicate that the soil beneath dispensers I, 2, 3, 6, and In the vicinity of monitoring well MW-3 Is imF)acted with diesel hydrocarbons In exCess of the California Department of Health Services (DHS] recommended action level [RAL] of 100 ppm for soil. Project: AEC 92P-t162 2 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND ' 4400ASHEROAD·#206 · BAKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 ~ ? Excavation Remedlation Report Advanced Environmental Concepts, Inc. At the. request of Mainland Pacific Development Company, on APril 20, 1992, AEC submitted to the KCEHD a Work Plan documenting proposed remedlatlon methods and abandonment procedures for groundwater monitoring well MW-3. On April 29, 1992, AEC received a letter from Mr. Mike Ddggs of KCEHD, Indicating approval of the work plan and authority to Proceed with the proposed remedlatlon project. 3.0' SITE CHARACTERISTICS The following sections summarize the project site features and conditions along with local geological and hydrological characteristics. 3.t Site DescriptiOn . The subject site Is located near the southern end of the San Joaquln Valley on relatively flat terrain at an apprOximate elevation of 404 feet above sea level. The regional topographic gradient is southwesterly at approximately nine feet per mlle. The Kern River Is located approximately 2,500 feet southeast of the site. 3.2 Regional Geologic Profile The subject site is located: In west-central Kern County just'outside the Bakersfield City limit on the floor of the southern San Joaquin Valley [Valley]. The Valley forms the southern two- thirds ot the Great Valley Geomorphlc Province, which is characterized as a broad, asymmetrical, structural trough. It is bordered on the east by the Sierra Nevada, the south by the Tehachapi and San Emigdio Ranges, and to the west by the Southern Coast Ranges. The geology of the southern Valley .consists of a Pre-Tertiary granitic-metamorphic basement complex which Is Unconformably overlain by thousands of feet of marine and non-marine sedimentary rocks of Tertiary age and alluvial deposits of Quaternary age. The sediments thicken from northeast to southwest. The Valley was once an Inland sea of comparatively shallow depth that continued to subside due to an ever Increasing load of clastic sediments transpoded and deposited from higher elevations. The surflclal sediments on the property consist of alluvial/fluvial deposits of Quaternary age which are poorly Indurated In the top several feet. 3.3 Local Geology and Hydrogeology RESNA boring logs Indicate the following soil types situated beneath the subject site: 0-8 feet: Silty, fine grained sands (SM] 8-14 feet: Silt [ML] 14-37 .feet: 'A distinct zone of fine-to predominantly coarse-grained sand (SM] 37-75 feet: ,Gravelly, silty sand [GM]. The groundwater.table Is located at approximately 58 feet BGL. Project: AEC 92P-I t62 3 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4~00ASHEROAD. #206 · t3AKEFISFIELD. CA98313 805/831-1646 · FAX 805t831-1771 ~ Excavation Remedlatlon Report Advanced Environmental Concepts, Inc. The local groundwater flow direction was calculated by RESNA to be N20°E with an approximate gradient of 0.Sleet per mile. GeolOgical field notes compiled by an AEC representative during the excavation project corroborate the soil classifications presented' In the RESNA boring .logs to a total depth of 36 feet BGL 4.0 SOIL EXCAVATION PROCEDURES The Work Plan for this project, detailing specific excavatiOn, aeration, and sample collection procedures was approved by Mr. Michael Driggs of the KCEHD on April 29, 1992. On May 4, 1992, AEC abandoned monitoring well MW-I by removing the traffic box and pouring a concrete slurry Inside the well casing. The slurry was allowed to fill the casing and cover the well head, thereby creating a mushroom-cap seal at grade level. On May 5, t992, Whltten ExcavatiOn began the demolition process of the building foundation, service bay pit, concrete slab, and abandoned diesel-dispenser Islands. On May 6, t992, an AEC representative noted diesel-stained soil beneath the concrete dispenser Islands. The concrete rubble was stockpiled and eventually hauled off-site by Whitten Excavation. On Thursday, May 7th, t992, an AEC engineer directed the excavation project at the Subject site under the supervision of Inspector Michael Drlggs, KCEHD. A John Deere 892 D-LC excavator removed soil and stockpiled It adjacent to the excavation, while a Michigan L90 front-loader continually transported the Impacted soil to the aeration area. AEC directed the equipment operators to segregate all clean soil for later use as backfill material. The on-site representative determined the presence of hydrocarbons in the soil by visual and olfactory inspection. Excavation procedures were lnltlated in the vicinity of dispenser 4, located'just west of the truck scales [Appendix A, Figure 3]. Clean soil was encountered at a vertical depth of approximately 14 feet BGL and at a lateral distance of I0 feet to the north and south of dispenser 4. Hydrocarbon migration toward the east was prevented by the truck scale, which ls a concrete-vault structure, extend!ng vertically to 10 feet BGL. The vertical extent of the hydrocarbon plume Increased substantially as excavation continued In a Westerly direction. By the end of this working day, the rectangular excavation was approximately 50 feet long, 20 feet wide, and 14 about feet deep. The depth gradually increased to about 20 feet In the vicinity of dispenser 1. On May 8, 1992, excavation procedures continued in the vicinity of removed dispenser t, which corresponds ta the west end of the pit. Clean top soil was removed In the northwest and southeast corners af the excavation, thereby creating two ramps sloping from grade level toward the deep portion of the excavation. Excavation of hydroCarbon-Impacted soil continued In this area to a maximum reachable depth of about 30 feet, BGL. The sandy sidewalls of the pit continued to slough off during the excavation procedures. Due to the sloughing sides, combined with Intentional removal of impacted soil, the sidewalls of the pit showed no signs of further hydrocarbon Impaction. Upon removal of the sloughed material from the base of the pit, a four- foot-diameter circular area of [native] diesel-stained soil was noted In the base of the excavation at approximately 30 feet BGL.. The excavator deepened the existing ramp at the northwest corner of the excavation in order to reach the Impacted soil. Once properly positioned, the excavator Project: AEC 92P-t 162 4 · ENVI'RONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 ' BAKERSFIELD. CA 93313 805/831-1646 * FAX 805/831-1771 Excavation Remedlatlon. Report Advanced Environmental Concepts, Inc. removed the remaining portion of hydrOcarbon-impacted soil to a total depth of approximately 36 feet BGL. At this juncture, the west end of the excavation was approximately 40 feet in diameter and 36 feet deep, w.h, ile the east end of the pit was about 20 feet square by 14 feet deep. Confirmatory sample St@36' was collected from 36 feet BGL from the center of the pit, and samples S2@34' and S3@34' were collected at 34 feet BGL from the southwest and northwest sidewalls, respectively. The excavator repositioned Itself near the truck scales, and confirmatory samples S4@15' and S$@t5' were.colleCted from approximately 15 feet BGL At about 17:00 hours on FridaY,'May 8, 1992, the excavation Of hydrocarbon-impacted soil was initiated in the vicinity of dispenser 6, located on the eastern side of the scales. Approximately 20 cubic yards of Impacted soil was removed from this area, creating an excavation about ten feet square by eight feet deep. Confirmatory samples S6@8', S7@8', and S8@8' were collected from the floor and sidewalls of this pit. The following sample collection protocol was .observed: I) The excavator operator was Instructed to retrieve a representative sample of native soil from the various sample points and bring the soil to surface grade for collection; 2) A qualified AEC representative pushed a clean brass sleeve Into an undisturbed portion of the soil, leaving no head space in the sleeve; 3) The sleeve ends were then covered with Teflon tape, capped with plastic end J caps, sealed with duct tape, labeled, recorded on a chain-of-custody document to ensure sample integrily and traceability, and placed In a cooler with chilled Blue . Ice; 4) The samples were analyzed by SMC LabOratory, a State-certified laboratory in , Bakersfield. The loader continued to transpod hydrocarbon-impacted soil to the aeration area, until the final size of the aeration stockpile was approximately 150 feet long, by 130 feet wide, by 1.5 feet deep (approximately 1,100 cubic yards (Appendix A, Figure 2). The pile was graphically divided Into eight equally sized quadrants. One composite sample comprised of samples from three random locations in each quadrant was made. A total of eight composite soil samples were made from 24 random sample points (Appendix A, Figure 4). The results of laboratory analyses from these composite samples will determine the starting TPH-d and BTXE levels; these are necessary to determine the hydrocarbon degradation rate. 5.0 ANALYTICAL RESULTS- All soil samples collected from the subject site were analyzed In accordance with California Department of Health Services method [CA DHS] for "total petroleum hydrocarbons as diesel" [TPH- d] and by EPA method 8020 for volatile aromatics [BTXE]. Confirmatory sample St@36' was also analyzed for oll and grease [EPA Method 907t]. The analytical results of soil samples collected from the excavation are presented in Table 2. The analytical results of the stockpile samples are presented in Table 3. The laboratory reports are Included as Appendix B. Unless otherwise noted, units for all analyses are expressed In micrograms per gram lpg/gm], which are equivalent to parts per million (ppm). Project: AEC 92P-t162 5 ' ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND ' -.4400 ASHE ROAD. #206 " BAKERSFIELD. CA 93313 805/831-1646 * FAX 8.05/831-1771 Excavation Remedlatlon Report Advanced Environmental Concepts, Inc. Table 2 - Confirmation Samples Xylenes, Ethyl- Sample I.D. TPH-d O&G Benzene 'Toluene . Total CA DHS EPA 907'1 EPA 8020 EPA 8020 - EPA 8020 "EPA S1@36' 270 55 ND ND ND ND S2@34' ND NA' ND ND ND ND S3@34" ND NA ND 'ND ND ND S4@'15' ND NA ND ND ND ND S5@15' ND NA ND ND ND ND S6@8' ND NA ND ND ND ND S7@8' ND NA ND ND ND ND S8@8' ND NA ND ND ND ND Detection Limits: 10 0.005 0,005 0.005 0,005 0.005 [mg/kg} ND: Non-detected at Indicated limit of detection NA: Not analyzed TPH-d: Total Petroleum Hydrocarbons as Diesel O&G: OII and Grease Table 3 - Stockpile Samples Xylenes, Sample I.D. TPH-d Benzene Toluene Total Ethylbenzene CA DHS EPA 8020 EPA 8020 EPA 8020 EPA 8020 SP'1 ~,800 0.0055 ND 0.02'13 ND SP2 .2,300 0.0064 . ND ND ND SP3 '1,000 ND ND ND ND SP4 '1,900 ND ND ND ND SP5 '1,900 ND ND ND ND SP6 4,300 ND ND ND ND SP7 240 ND ND ND ND SP8 '1/100 ND ND ND ND Detection Limits (mg/kg]: ~00 0.005 0.005 '0.005 0.005 ND: Non-detected at indicated Ii'mit of detection 6.0 GROUNDWATER SAMPUNG On May '18, '1992, Mr. Michael Drlggs of the KCEHD recommended that water samples be collected .from on-site monitoring wells and analyzed, for TPH-d and BTXE. On May 29, '1992, an AEC representative returned to the Site to purge and sample groundwater monitoring wells MW-'1 and MW-2. Please note that monitoring well MW-3 was abandoned and demolished as part of the excaVation project. The nodhwesterly well [MW-'1] contained an Project: AEC 92P-~62 . 6 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND ' ,4400 ASHE ROAD. #206 * E~AKER~FIELD. CA93313 805/831-1646 · FAX805t831-1771. Excavation Remediatlon Report Advanced Environmental Concepts, Inc. obstruction Inside the casing at approximately 50 feet BGL, such that a depth-s°undlng probe or a bailer could notreach the groundwater surface. The following sample collection protocol was observed for monitoring well MW-2: I) Depth to groundwater was measured In the well; 2) A boiler was used to collect a water .sample from the pote'ntlometrlc 'surface to visually determine whether free hydrocarbons or a sheen could be Identified; 3) Initial readings of pH, Temperature, and Conductivity were obtained (Appendix C); 4) A minimum of three casing vOlumes of water was purged from the well [approximately 9-gallons]. Readings of pH, Temperature, and Conductivity were measured at 3-gallon intervals; 5] Once stabilization to 90% of original aquifer parameters was achieved, the · groundwater samples were collected. The sampling equipment was washed Inan Alconox solution and double-rinsed in clean, deionized water; 6) The water samples were collected in a clean stainless.steel bailer, then transferred to 4Grail glass VOA vials with Teflon septa and one liter amber jars. Care Was exercised.to ensure that no air bubbles were present in the cOntainers; 7] The sample containers were labeled, sealed with duct tape, wrapped In a protective covering and placed in cooler containing frozen Blue Ice for transport to the laboratory. Chain-of-custody protocol was followed to ensure sample integrity and traceability; 8] The samples Were analyzed by SMC Laboratory, Inc., a California-certified. labaratory in Bakersfield for total petroleum hydrocarbons as diesel (TPH~d] and volatile aromatics [BTXE] by EPA Method 50301602. The labaratory reports and chain-of-custody documentation are presented In Appendix B. Table 4~Water Analyses, Summarize the analytical results for the subject site. Units are expressed in micrograms per liter II, g/L] which are equivalent to parts per billion [ppb]. Table 4 - Groundwater Analyses Xylenes, TPH-d Benzene Toluene Total Ethylbenzene Sample I.D. EPA 5030 EPA 8020 EPA 8020 EPA 8020 EPA 8020 MW-2 ND ND ND ND ND MW-I NC NC NC NC NC De~ecJlon Level (~.g/L) 50 0.5 0.5 0.5 0.5 ND: Not detected at Indicated level of detection. TPH-d: Total Petroleum Hydrocarbons as diesel. NC: Not collected due to an obstruction inside the well casing. Project: AEC 92P-;t462 7 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4'400ASHEROAD.#206 ' BAKERSFIELD. CA9~313 805/831-1646 · FAX 805/831~1771 Excavation Remedlatlon Report. Advanced Environmental Concepts, Inc. The current action levels for drinking water set by the Department of Health Services areas follows.. Benzene ............. ............ i ........ I i~g/L Toluene ................................... t00 ~g/L Ethylbenzene ......................... 680 i~g/L Total ×ylenes ......................... t750 I~g/L '7.0 CONCLUSIONS Ba~ed on the documentation provided In this report, AEC concludes that approximately 1,100 cubic yards of soil containing excessive levels of diesel-range hydrOcarbons were excavated from the former dispenser area of the subject site. Sample SI@36', collected from the base of the excavation at 36 feet below dispenser 1; contained 270 ppm TPH-d and non detectable levels of BTXE. In a telephone Conversation, Mr. Michael Drlggs indicated to AEC that the TPH level 'In this sample should be acceptable for closure. Sample S1@36' Was subsequently analyzed for oil and grease in accordance with EPA test method 9071 at the request of Mr. Drlggs. Laboratory results Indicate ,55 ppm oil and grease for this sample. All other confirmation samples from the excavation contained non detectable TPH-d and BTXE levels. AEC also concludes that water samples collected from monitoring well MW-2 contained non detectable concentrations of TPH-d and BTXE. The hydrocarbon-impacted soil excavated from the dispenser area Is presently aerating In a 1,50- foot tong, by 130-foot wide, by 1.5-foot deep stockpile, located In the southern portion of the site. Samples collected from the stockpile exhibited elevated TPH-d levels [Table 3]. 8.0 RECOMMENDATIONs Based on the conclusions presented in this report, AEC believes no fudher e×cavation of hydrocarbon-impacted soil In the vicinity of the removed dispenser Islands is necessary for the subject site. We respectfully recommend closure for the excavation podlon of this project.. AEC recommends aerating and sampling the existing stockpile in accordance with our work plan IApril t002}. Pending acceptable TPH/BTXE levels, AEC will recommend that the decontaminated soil be used as backfill for the existing excavation. 9.0 UMITATIONS This work has been performed in accordance with generally accepted environmental science and engineering practices. Conclusions and recommendations are based upon information collected and compiled during this Investigation. Soil samples for this project were collected on a finite grid. The analytical results pertain to discrete samples and are not to be misconstrued as representative of unsampled areas. No other warranty, expressed or implied, is given. Project: AEC 92P-1t62 ' ' 8 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 '° E~AKERSFIELD. CA93313 805/831-1646 ° FAX 805/831-1771 Excavation Remedialion Report Advanced Environmental Concepts, Inc. 10.0 CLOSING · Advanced Environmental Conoepts~ Inc. appreciates the opportunily to be of sen/Ice to Malniand Pacific Development Company on this project. If there are any questions or additional Information required regarding this report, please contact our office at (805) 831-'1646. Sincerely, Advanced Environmental Concepls, Inc. Christian R. Be'ii~ Project Engineer Californic EIT #XE072451 This report has been technically reviewed by: Dayne L. Frary Registered Geologist ~4456 Registered Environmental Assessor #2980 · ProJech AEC 92P-t162 9.' · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · · 4400 ASHE ROAD. #206 ° E~AKERSFIE'LD. CA93313 805/831-1646 ° FAX805/831-1771 :- . . = ..- ' " ' -.,' " -. · ::.. .' ~ · ;, ,~ .::,; '..~ .:.....:;.~:,v._:'.~:..?../.,: ';::.:. ', . .. . .... .... . .. .'~ . ,. , :..:=: ..... ' . :.. ,= .. . .~.'.,:,-:,.'.. --. ,: " .' } .. ~3.- :,,~ .'.x: ;'L" .-' ' : · , .':.. ~ . · ... -_ Stockpile Sample 'Location::~: ~r Big Valley Tm~ ~P 3t t5 ~ ~'~ . , : '..:' ., . "., ..', . . ,, .:. - . ~ .~ . , . . . -. ( ~' .. ,. :'..' ~. . :' ;;~": '~.; ~ ." '""" ' . '~nd~ B~...' 4- '~ ' :. '~.~-". ...... ' ~ ........ ~:~-?. ~- . · ENVIRONMENTAL CONCEPTS WITH DESIGN IN'MIND * . - -:.r ,..- .. . 4400 ASHE ROAD. ~20~ · BAKERSFIELD. CA 93313 8051831-1640 *' F~ 805/~831-17.71 - .' --: - SMC Lab°rator~, Inc. Analytical Chemistry Client Name: AdvanCed Environmental Concepts Address : 4400 Ashe Road, Ste 206 Bakersfield, Ca.'93313 Attention : Jon Buck ~ Date samples received :5-11-92 Date analysis completed:5-18-92 .Date of report :5-18-92 prOject Name: Big Vally Truck Stop RESULTS OF ANALYSIS: ~1719 ID:SP1 ugm/gm MDL,ugm/gm Benzene 0.0055 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene 0.013 0.005 o-Xylene 0.0083 0.005 Isopropylbenzene· ND 0.005 TPH (Diesel) 1800 100 (PQL) ~1720 ID:SP2 ugm/gm MDL,ugm/gm Benzene 0.0064 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) 2300 100 (PQL) Matrix Type = Soll Method of Analysis for BTX: 5030/8020 Method of Analysis for TPH (Diesel): 3540/8020(FID) MDL = Minimum Detection Level PQL = Practical Quantitation Level TPH = Total Petroleum Hydrocarbons ugm/gm = micrograms per gram (ppm) ND = None Detected Kevin .~a g~n// Analytical ~Chemi s t ,. 3157 Pegasus Drive -' Bakersfield, CA 93308 "- (805) 393-3597 P.O. Box 80835 · Bakersfield, CA 93380 · FAX (805) 393-3623 RESULTS OF ANALYSIS ~1721 ID:SP3 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0~005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene .ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) 1000 100 (PQL) ~1722 ID:SP4 ugm~gm MDL,ugm/gm Benzene ND. 0.005 Toluene .ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) 1900 100 (PQL) ~1723 ID:SP5 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) 1900 100 (PQL) Kevin Laganv ~ -- . Analytical Chemist RESULTS OF ANALYSIS ~1724 ID:SP6 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) 4300 250 (PQL) %1725 iD:SPT ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.0'05 o-'Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) 240 100 (PQL) ~1726 ID:SP8 .ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND. 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH .(Diesel) 1100 100 (PQL) Kevin Lagan' ~ Analytical Chemist ~a~ASSOCiATED ~/l"~ ~--"~...~ ~7''~ LABORATORIES 806 N. Batavia · Orange, CA 92668 CHAIN OF CUSTODY RECORD (714) 771-6900 · FAX: (714) 538-1209 ' Date ~{[-~ Page ( of ~ ADDRESS ~d ~ ~ ~ PROJECT MANAGER Samples Intact Yes ~No ~ ~Y 5 ~ ~ ~ Cou'nty Seals Intact Yes~ No.~ PROJECT NAME ' Same Day 24 Hr. ~ ~ ~ ~ ~~ ~C~ ~ ~ Regular 48 Hr. SAMPLE TYPE ~ SAMPLE LOCATION [3ATE · TESTS NUMBER DESCRIPTION REQUIRED Relin_c~ished,;/.] ~ . ~/~ ~bY: (Sig,r)ature) I Received by: (Signature) I Date/Time I hereby authorize the performance of the above · / '.~'~ ~ ~/.L~_~. . indicated work. I I Relinquished by: (Signature) Received by ~;aborato~y for analysis: - I Date/Ti~e (Signature),Y7' ~ I ./,~ 2~ ,~L /~~ '"'~'t''~'' I I' '),~ .... .x~ /[/~'~'~'' ~~"X~'~/~' i DISTRIBUTION: White with repo,. Yellow ,o AL ' ' Dink to SMC Laborat°ry, Inc· al ical Chernist Client Name:'Advanced Environmental Concepts Address : 4400 Ashe Road, Ste 206 Bakersfield, Ca..93313 Attention' : Jon BuCk Date samples received :5-11-92 Date analysis completed:5-15-92 Date of report :5-15-92 Project Name: Big Valley Truck Stop RESULTS'OF ANALYSIS: ~1711 ID:Sl-36 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 isopropylbenzene~. ND 0.005 TPH (Diesel) 270 10. ~1712 ID:S2-34 ugm/gm MDL,ugm/gm :. Benzene ND 0.005 ' Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene. ND 0.005 IsoprOpylbenzene ND 0.005 TPH (Diesel) ND 10. Matrix Type = Soil Method of Analysis for BTX: 5030/8020 Method of Analysis for TPH (Diesel): 3540/8020(FID) MDL = Minimum Detection Level TPH = Total Petroleum Hydrocarbons ugm/gm = micrograms per gram (ppm) ND = None Detected Analytical Chemist 3157 Pe§asus Drive · Bakersfield, CA 93308 · (805) 393-3597 P.O. Box 80835 · Bakersfield, CA 93380 . ° FAX (805) 393-3623 RESULTS OF ANALYSIS ~1713 ID:S3-34 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0~005 o-Xyiene ND 0.'005 Isopropylbenzene ND 0.005 TPH (Diesel) ND 10. %1714 ID:S4-15 ugm/gm MDL,ugm/gm Benzene ND 0.005 ToIuene - ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 ~ m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropyibenzene ND 0.'005 TPH (Diesel) ND 10. %1715 ID:S5-15 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) ND 10. Kevin Lagan m~s Analytical Che t RESULTS OF ANALYSIS' ~1716 ID:S6-8 ugm/gm MDL~ugm/gm Benzene ND. 0.005 Toluene ND 0.005 Ethylbenzene ND 0.005 p-Xylene ND~ 0.005 ~m-Xylene ND 0.005 o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) . ND 10. ~1717 ID:S7-8 ugm/gm MDL,ugm/gm Benzene ND 0.005 Toluene ND 0~005 Ethylbenzene ND 0.005 p-Xylene ND 0.005 m-×ylene ND 0.005 .o-Xylene ND 0.005 Isopropylbenzene ND 0.005 TPH (Diesel) ND 10. ~1718 ID:S8-8 ugm/gm MDL,ugm/gm Benzene ND 0.~005 Toluene ND ~' 0.005 Ethylbenzene ND ' 0.005 p-Xylene ND 0.005 m-Xylene ND 0.005 o-Xylene ND ,0..005 Isopropy!benzene ND' 0.005 TPH (Diesel) ND 10. Kevin Lagan ~ Analytical Chemist · Location of Sampling ~ Collector Company: Company: b°ratou ,' Address: 3((%~ 9~Ct ~- Address: V~O ~f~ ~.~ ~. 3155P=E~Ddve Te!ephcne: ( ) Telephone: (~) ~/_ (G ~ Telephone: ( 805 ) 393-3597 · ' - FAX: ( 805 ) 393m3623 S~D!in~ Method: Samole T~e: Preservation Methods: ' S~u!e No. [ Date Time [ Description ~ Ana!vsis Reouested Laboratory No. Re!in~ished ~y: ~ ~d~ Company: ~f, Date: ~.((, Received By: ,~ Ccmpany: [ ~ ~ . Date: Relinquished By] ' Company:' . Date: Received By: Company: Date: Relinquished By: Company: Date: ReceiVed By: Company: Date: Location of SamDli._~5~ ~' Collector ComPany: Company:' SMC borato Address: 3t{%~ Q~t ~ - Address: ~O ~f~ ~A ~ ~- 3155P~g~Dfive Telephone: ( ) Telephone: (~o~) ~_ [G ~ Telephone: ( 805 ) 393-3597 .. '~AX: ( 805 ) 393-3623 S~olin~ Method: Samo!e Tvoe: Preservation Methods: ' ' S~o!e No. ~ Date ] Time ~ Description ~Analvsis Requested ~ Laboratory No. Relinquished By: Company: ~ Date: /~~ Received By: Company: Date: Re lin~ished By: Company: Date: Received By: Company: Date: SMC Laboratory, Inc: Anai~ical Chemist~ Client Name: Advanced Environmental Concepts Address :.4400 AShe Road,~~.~206 Bakersfield, CA 93313 ~ Attention :' Mr. Jon'Buck Date sample request added:5-18-92 Date analysis~completed :5-26-92 Date of report :5-26-92 Project Name: Big- Valley Truck Stop RESULTS OF ANALYSIS: Oil & Grease ID ugm/gm MDL,ugm/gm 1711 S1~36' 55 20 Type of Matrix: Soil Method of Analysis for O'il & Grease: EPA 9071 MDL = Minimum Detection Level ugm/gm = micrograms.per gram (ppm) · ND = None Detected Brian Miller Analytical Chemist 3157 Pegasus Drive · 'Bakersfield, CA 93308 · (805) 393-3597 P.O. Box 80835 · Bakersfield, CA 93380 · FAX (805) 393-3623 Loca~icn o~ S~p~nq ~, Collector , "B~e~fie!~ CA 93308 .TeZ~phcne: ( 80~ ) 393-~597 ~e li>.qui~hed By: C~m~ar.y: Da~e: ~.eceived By: Company: Date Ralin~ished By: Compa~;f: Date Received By: Ccmpany: Date SMC Laboratory/, Inc. 'Analytical Chemistry- Client Name: Advanced Environmental Concepts Address : 4400 Ashe Road, Ste 206 Bakersfield, Ca. 93313 Date samples received :5'29-92 Date analysis completed:6-04-92 Date of report :6-11-92 Project Name: Big Valley Truck Stop RESULTS OF ANALYSIS: ~2015 ID:MW2 ugm/L MDL,ugm/L Benzene ND 0.5 Toluene ND 0.5 Ethylbenzene ND 0.5 p-Xylene ND 0.5 m-Xylene ND 0.5 o-Xylene ND 0.5 Isopropylbenzene ND 0.5 TPH (Diesel) ND 100 Matrix Type = water. Method' of Analysis for BTX 5030/602 Method of Analysis for TPH (Diesel): 3510/8020 (FID) MDL = Minimum Detection Level TPH = Total Petroleum ·Hydrocarbons ugm/L = micrograms per liter ND = Not Detected Kevin Lagan ~ Analytical Chemist 3157 Pecjasus Drive · Bakersfield,.CA 93308 · (805) 393-3597 P.O. Box 80835 · Bakersfield, CA 93380 · FAX (805) 393-3623 '* ~'*~*"**~.*~, ~.~.~.~," ~-~ Chain - Of- Custody Record ' E N V I R 0 N M E N T A L T E S T I N G Fax714.757.7274 DateClient Preject Name ~; Project Addr~ 'Turn ~ound Reqd~ed:. ~ / ~ ,:'" F/~ ~. ~ --~ · ~ Immediate A~ention ~b U~ Only ~ Rush 24-48 Hours Condition Projec[Contact ~Normal Chilled ~yes Q no - Laborato~ Sample ID Sample Location Date Time . Sample Number Cont~i~er/Co~ents ~me ~Company I~me Compan~ ....' [1"~:/~L '~¢ ,-,- '. [ _/C~,, /~ Additional Comments Relinquished by (signature) Date O-Received by Labomto~ (signature) ~ [Date I I . /'. .._ ~. ;.:. ,.'.: :,,.-.~ .:..: , .:,.' ,.,_- -' · .. .. . ~.. -/. ~'/,~, -..r .,- -' '" -: "; "-' :" T,' " / .,. .;.,} .,, ,.~./ .>. .. .-: Groundwater Parameters Sile Name: 'Former Big Valley ~ruck Stop AEC P.O. #: Location: 3115 Pierce Road Project ~: Bakersfi,eld~ California . Date: 5-29-92 TIME GALLONS' PURGED . CONDUCTIVITY TEMPERATURE pH Monitoring Well ~ 2 08:00 3 Gallons 529 78.2 7.65 09:00 6 Gallons' 474 76.0 7.55· 09:30 9 Gallons 467 73.4 7.56 Bailer 466 74.4 7.5 \ Monitoring Well ,~ 3 09:10 Well obstructiOn a '52.4' below top of c asin~. No ~roundwatE ~ data was obtained from :his' well. Monitoring Well ~' ' 3 Casing Volumes 4" Screen = [.66 gal/fi] [ fi] = 2" screen = [.t7 gal/fi] [ fi]: MW '~ 2 Depth to Groundwater = ~ Corrected Depth: N/A survey: N/A · MW · 3 Depth to Groundwater= N/A Corrected Depth: N/A Survey: N/A MW ~ Depth to Groundwater'= Corrected Depth: Survey: -ADVANCED ENVIRONMENTAL CoNCEPTs INC- November 5, 1992 Mr. Michael Drlggs Kern County Environmental Health Department 2700 "M" Street, Suite 300 Bakersfield, California 93301 Regarding: AeratiOn Results Big Valley Truck Stop i.~ 3115 Pierce Road, Bakersfield, California Dear Mr. Driggs, Advanced Environmental Concepts, Inc. (AEC) was contracted by Mr. Calvin Okeya on behalf of Mainland Pacific Development Center to prepare the sail sampling results for the aerating diesel- impacted soil report for the above referenced projectllocation. Enclosed please find that report, which AEC is submitting for review. I Should you have any questions or require clarification on any aspects of the enclosed, please do not hesitate to contact our office at (805) 831-t646. Respectfully yours, Advanced EnvirOnmental Concepts, Inc. DebbieJr~vin Project Coordinator / Office Administrator. Attachments: Report (t] Distribution: I/Addressee - REG MAIL 1/Mr. Calvin Okeya 1/Bksfld File ' ENVIRONMENTAL CONCEPTS WITH DESIGN IN MINE)* 4400 ASHE ROAD. #206 · · BAKERSFIELD. CA93313 805/831-1646 o FAXS05/831-1771 ''-' ' mADVANCED-'ENVIRONMENTAL CONCEPTS INC~' ' NoVember 5, 1992 ' - - Mr. Michael Driggs .':-:."-- i. = - .... Kern CoUnty Environmental Health Departmentz- Bakersfield, California 9330'1 ....... \ :\_ i; Big Va ley Tr. uok Stop . ~ . _, 3115 Pierce Road, Bakersfield~ California Dear Mr. Driggs; ...... '-- - Advanced Environmental Conoepb, Inc. ,[AEC] was contracted by Mr., Calvin Okeya on behalf of Mainlq.n_d pacific Development Center-to prepare the soil samplingresults for the aerating diesel- imp. acted soil report for the above-re(erenCed project/lOcation; ~ - , ' - Enclosed please find that report, which :AEC is submitting for J'eview. Should you-have any questions or reqUire clarification on any aspects of the enclosed, please do not hesitate to contact our office at [805] 831-1646, Respectfully' yours Advanced Environmental Concepts, Inc. ~ _ ~ ~ ' -- - _. Project Coordinator / Office AdministratoK ........ Attachments:- Report [1] Distribution: l/Addressee - REG'MAIL: ~ , I/Mr. Calvin Okeya .- t/Bksfld File ' : .... ' * ENVIRONMENTAL COI~CEPTS WITH DESIGN IN MIND ..... ' '' ~ ; ' 4400 ASHE RO_A, '" BAKEF~SFIELD. cA ~331-3" - 805/831-1 FAXi805/831:!~ 77;1 - - 'ADVANCED ENVIRONMENTAL CONCEPTS INC' . November 5, 1992 Mr. Calvin Okeya . Mainland Pacific Development Company 12536 Admiral Avenue Los Angeles, California 90066 Subject: Confirmatory soil sampling results for the aerating diesel-impacted soil previously excavated from the former Big Valley Truck Stop, 31 t5 Pierce Road, Bakersfield, California. INTRODUCTION This report documents soil sample collection procedures and analytical results pertaining for the stockpile of diesel-impacted soil excavated from the. subject site In June, 1992, (Attachment A, Figure t). This soil sampling program was authorized by Mr. Calvin Okeya, Mainland Pacific Development Company, and Mr. Michael Drlggs, Kern County Environmental Health Department. BACKGROUND · In June t992, approximately 1,t00 cubic yards of diesel-impaCted soil was excavated from · '. beneath the removed dispenser islands in accordance with the guidelines set forth by the Kern County Environmental Health Depa~.rt~nent [KCEHD) [Attachment A, Figure 2). The analytical results of confirmation samples collected from the floor and sidewalls of the excavation Indicated successful removal of the diesel-Impacted soil. The excavation was partially backfilled with clean soil, and the Impacted soil was placed Into an aeration stockpile located In the southern portion of the site. For more information regarding the subject site, please refer to the Excavation Remediation Repart, dated June, 1992. On July 6, 1992, Advanced Environmental Concepts [AEC] collected eight [8] composite soil samples from the aeration stockpile, and subsequently delivered the samples to Associated Laboratories in Orange, California. The soil samples were analyzed for total petroleum hydrocarbons as diesel [TPH-d] in accordance with California Department of Health Services Method [CA DHS] and volatile aromatics [BTXE] by EPA method 8020. Labaratory analyses revealed an average TPH-d concentration of 3,130 parts per million [ppm] and nondetectable BTXE concentrations. The target TPH-d concentration necessary In order to use the stockpiled material as on-site backfill Is less than 100 ppm. The results of the sampling program conducted on July 6, 1992 were documented In a summary repart and submitted to the client and the KCEHD. · ENVIRONMENTAL CONCEPTS WiTH DESIGN IN MIND ' 4400ASHEROAD.#206 · BAKERSFIELD·CA9331~. 805/831-1646 · FAX 805/831-1771 Soil Sampling Report Advanced Environmental Concepts, Inc. This report documents sample collection procedures and analytical results for the second stockpile sampling program, which was conducted at the subject site on October 8, '1992. SAMPLE 'COLLECTION.. . PROCEDURES The confirmatory sampling program presented In this report was outlined In AEC's Excavation Remediation workplan, dated April, 1992. The aerating stockpile, approximately '150 feet long, by 130 feet wide, by two [2] feet deep was 'graphically divided into eight [8] sectors of equal area. One [t] composite sample was collected from each sector. Three [3] discrete sample points per sector were chosen for this sampling program [Attachment A, Figure 3]. The following sample collection protocol was observed'. I. A shovel was used to dig one foot Into the soil at three [3] discrete locations for each of eight [8] composite sectors; 2. A brass sleeve was used to retrieve one third of a comPOsite soil sample from each of three [3] discrete locations at each of eight [8] sectors. Three [3} approximately equal volumes of soil were combined In each brass sleeve; 3. The open end of each sleeve was Immediately sealed with Teflon tape, covered with plastic end caps, and secured with duct tape. The brass sleeve was then labeled, sealed in a plastic bag, and placed In a cooler chilled with frozen Blue Ice; 5. Soil samples were recorded on a chain-of-custody document to ensure sample Integrity and traceability; and, 6. The cooler containing eight [8] composite soil samples and the chain-of-custody document were delivered to Associated Laboratories, a California-certified '~ laboratory in Orange, California; 'The AEC field representative noted a very dry, silty, fine-grained soil that exhibited a moderate hydrocarbon odor. As of the second sampling, the stockpile of diesel-impacted soil has aerated for approximately three months, with weekly disking performed by Whltten .Excavation until September 4,. 1992, ANALYTICAL RESULTS The analytical results of eight [8] soil samples collected from the aeration stockpile on July 6, '1992 are summarized in Table '1, and the results of the second stockpile sampling conducted on October 8, 4992 are summarized in Table 2. All composite soil samples were analyzed for TPH-d by California Department of Health Services Method [CA DHS] and volatile aromatics [BTXE] by EPA method 8020. The laboratory reports and chain-of-custody documentation are provided In Project No. 92P-'1 ~6~! 2 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 * BAKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 Soil Sampling Report Advanced Environmental Concepts, Inc. Attachment B. Units are in milligrams per kilogram (mg/km) which are equivalent to Parts per million [ppm]. TABLE. 1 - July 6, !992 Soil Sampling Results Xylenes, TPH-d Benzene Toluene Total Ethylbenzene Sample I.D. CA DHS. EPA 8020 EPA 8020 EPA 8020 EPA 8020. SP-t 1,380 ND ND 'ND ND SP-2 2,790 ND ND ND ND SP-3 3,130 ND ND ND ND SP-4 7,200 ND ND ND ND SP-5 '3,300 ND ND ND ND SP-6 922 ND ND 'ND ND SP-7 4;370 ND ND ND ND SP-8 1,950 ND ND ND ND Detection Limit (rog/kg) t0 0,005 0.005 0.0t5 0.005 ND: Not-detected at the indicated detection limit. · ' TABLE 2 - October 8, 1992 Soil Sampling Results Xylenes, TPH-d Benzene Toluene Total E~hylbenzene Sample I.D. CA DHS EPA 8020 EPA 8020 EPA 8020 EPA 8020 SP-t 1,800 ND ND ND ND SP-2 · 1,900 ND ND ND ND SP-3 2,600 ND ND ND ND SP-4 t ,800 ND ND ND ND SP-5 2,100 ND ND ND' ND SP-6 t;500 ND · ND ND ND SP-7 2,100 ND . ND ND ND SP-8 2,200 ND ND ND ND Detection Limit (mg/kg) t0 0,005 0.005 0.0t5 0,005 ND: Not-detected at the indicated detection limit. Project No. 92P-tt6t 3 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 ' BAKERSFIELD, CA 93313 B05/831-1646, ' FAX 805/831-1771 Soil Sampling Repart Advanced Environmental Concepts, Inc.' CONCLUSIONS AEC concludes that the average TPH-d Concentration decreased from 3,430 ppm, as determined in the July 6,. '1992 sampling to 2,000 ppm as shown In this second sampling program. Although the average levels decreased by about 36%, the concentrations are still well above the target level of 100 pPm. AEC believes that the soil has remedlated Itself by passive aeration as much as possible. A probable cause for the continued high TPH concentrations Is that the dry soil, regardless of tilling frequency, acts as .a oxygen barrier on the surface of the pile. The microorganisms that are already present In the soil need oxygen and moisture In order to multiply and break down the hydrocarbon levels. The existing excavation has been partlaiiybackfilled with clean soil that was segregated from the contaminated soil during excavation procedures. The present depth of the pit Is approximately 18 feet below grade level. RECOMMENDATIONS Based on the continued elevated concentrations of total petroleum hydrocarbons, It Is AEC's professional opinion that the remediation process should be enhanced by adding nutrients to the stockpile. This procedure will stimulate the growth of existing biological organisms that naturally break down the hydrocarbon chain. A mixture of high nitrogen fedlllzer le.g. ureal and water should be sprayed onto the surface of the stockpile, followed.by mechanical tiffing of the soil. Fertilizer application and tilling should be performed at least once a week to insure that all of the soil comes In contact with the nutrients. Tilling mixes the nutrients Into the soil, as well as adding the much needed oxygen to the hydrocarbon-attacking microorganisms. AEC believes that at least six months of this procedure will be necessary to bring the hydrocarbons down to acceptable concentrations. However, it is unknown exactly how the soil will respond to this remediation method. Another'option Involves the additiqn, Q_of biological microOrganisms to the soil following irrigation and fertilization. Bioremediation is a proven procedure that Is faster, more reliable, and more costly' than the previously mentioned option. AEC believes that the stockpiled material Can be decontaminated In three months or less using bioremediatlon. Whichever remediation option is selected, the process should continue until TPH-d concentrations are less than '100 ppm, at which time AEC will recommend that the decontaminated material be used to backfill the existing excavation. AEC will correspond with the Kern county Environmental Health Department to determine whether or not the decontaminated soil can be returned to the excavation with a higher TPH level than ~00 ppm le.g. 500 ppm). Due to the continuing non- detectable concentrations of benzene, toluene, xylenes, and ethylbenzene (BTXE by EPA 80201, the KCEHD is more likely to accept the higher TPH-d concentration. AEC will recommend final closure for the site when the desired concentration is reached, and the pit is backfllled. Please refer to the AEC'proposal to remediate the stockpiled soil in accordance with the above mentioned optiOns. Project No. 92P-I t64 4 - . ' · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · . 4400 ASHE ROAD. #206 .' . t~AKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 Soil Sampling Report Advanced .Environmental Concepts, Inc. CLOSING ' Advanced Environmental ConcePts appreciates the opportunily to be of service to Mainland Pacific Development Company In the environmental clean up of the sUbject site. If you have any questions'regarding this report, please contact our office at (805) 83t-t646. sincerely, Advanced Environmental Concepls, Inc. Ch~fl'an R. Bellue Project Engineer, EIT ~XE072451 This has re~iew for has been technically reviewed by the undersigned. Dayne L. Frary Registered Geologist #4456 Attachments: Project Maps/Figures Laboratory Reports/Chain-of-Custody Distribution: 2/Addressee · t/Mr. Michael Driggs, KCEHD 1/Bkfd File · . ProJecl No. 92P-I t6t · · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400ASHEROAD·#200- *, 'E~AKERSFIELD. CA93313 805/83J-1646 * . FAX 8051831-1771 ' ~.~-.~-.:-' ,'~'-L~ ~ ~. '. ~ ~.¥~ ~.- ~-~ ~-~:;.~, ..',%:.; · -o ..-, .~; .' ~.~-..,~ ~: ; :., ':'. .' . ' ',:.T.' ?::~-:'" . ' ~ ;., . ..., - . -" ' - - '' -' ' - - ' .-. " "; ' "'-'.' '. '.' ~' ' .... .', " ' -. " , . . '- '~. '~, . ~ . .f ,. "..-.' '. .:.,...-;'' ;.'",'--,-~;~ '-.'.' '~'~-'~ "'" ' , . : .-~ . .. - , . ' .. .' .... · .... . ,, . ,.. : , '.,, ';.'-',,': ." ~,..:~-~ ~,..~.'.~ .... ,-... ,.;',. . ?., .- .-, ;. -.'.,.; 4400 ASHE ROAD. ~206 · BAKERSFIELD. CA g3313 805/831-1646 ASSOCIATED LABORATORIES 806 ]~ort]~ BataVia- Orange, Calito~nia 92668- ~14/7~I~900 Ffl~ ~14/538-1209 CLIENT Advanced· EnVironmental concept (4283) LAB NO. G39431-01 Attn: Chris Bellue 4400 Ashe Road REPORTED 10/13/92 Suite #206 Bakersfield, CA 93313 SAMPLE soil RECEIVED 10/09/92 IDENTIFICATION Big Valley Truck Stop BASED ON SAMPLE ' As Submitted SP1 SP2 SP3'. Total Hydrocarbons (TPH DHS) (mg/kg) -Diesel 1,800 1,900 2,600 Benzene'(mg/kg) ND< 0.005 ND< 0.005 ND< 0.005 Toluene (mg/kg) ND< 0.005 ND< 0.005 ND< 0.005 Ethylbenzene (mg/kg) ND< 0.005 ND< 0.005. .ND< 0.005 Total Xylenes ~ (8020) (mg/kg) ND< 0.015 ND< 0.015 ND< 0.015 Date Analyzed: 10/09/92· Vice.President ESB/ql NOTE: Unless notified in writing, all samples will be discarded by appropriate disposal protocol. 30 days from date reported. TESTING & CONSULTING Chemical · The reports.of the /~s$octatecl Laboratorle~ are confidential property of our clients and may not be reproduced or used for publication in pa~:t or in full without our written Microbiological · permission. This is for the mutual protection of the public, our clients, and ourselves. Enwronmentol · -1 iOM' ASSOCIATED LABORAIORIES 806 North Batavia-Orange, Ca]ifornia 92668. ~14/771-6900 FAX 714/538-1209 CLIENT Advanced Environmental Concept (4283) LAB NO.. G39431-02 Attn: Chris Bellue 4400 Ashe Road REPORTED 10/13/92 Suite #206 Bakersfield, CA 93313 SAMPLE SOil RECEIVED 10/09/92 IDENTIFICATION Big Valley Truck Stop BASED ON SAMPLE As Submitted SP4 SP5 SP6 Total Hydrocarbons (TPH DHS) (mg/kg) -Diesel 1,800 2,100 1,500 Benzene (mg/kg) ND< 0.005 ND< 0.005 ND< 0.005 Toluene (mg/kg) ND< 0.005 ND< 0.005 ND< 0.005 Ethylbenzene (mg/kg) ND< 0.005 ND< 0~005' ND< 0.005 Total Xylenes ~ (8020) (mg/kg) ND< 0.015 ND< 0.015 ND< 0.015 Date Analyzed: 19/09/92- ~ ...... I ..... , 1/~ ~a~·S. Beh~a~e, Ph.D. Vice President ESB/ql NOTE: Unless notified in writing, all samples will be discarded by appropriate disposal protocol 30 daYs from date reported. TESTING & CONSULTING ' The reports of the Associated Laboratories are confidential property of our clients and Chemical · may not be reproduced or used for publication In oart or In full without our written Microbiological · ' permission. This Is for the mutual protection of the public, our clients, and ourselves. · Environmental · /OM ASSOCIATED LABORATORIES 606North Batavia. Orange, California 92668- 714/771.6900 FAX 714/558.1209 CLIENT - Advanced Environmental Concept (4283) LAB NO. G39431-03 Attn: Chris Bellue 4400 .Ashe Road REPORTED 10/13/92 Suite #206 Bakersfield, CA 93313 SAMPLE Scil RECEIVED 10/09/92 IDENTIFICATION Big Valley Truck Stop BASED ON SAMPLE As Submitted ' SPT SP8' Total Hydrocarb6ns (TPH DHS) (mg/kg) ~Diesel 2,100 2,200 Benzene (mg/kg) ND< 0.005 ND< 0.005 Toluene '(mg/kg) ND< 0.005 ND< 0.005 Ethylbenzene (mg/kg) ND< 0.005 ND<.O.O05 Total Xylenes (8020) (mg/kg) ND< 0.015 ND< 0.015 Date Analyzed: 10/09/92 Ed~,d~S~/Beh~re, Ph.D. Vice.President ESB/ql NOTE: Unless notified in writing, all samples will be discarded by appropriate disposal prOtocol 30 days from date reported. TESTING & CONSULTING Chemical · The reports of the Associated Laboratories are confidential property of our clients and may not be reproduced or used for publication in part or in full without our written Microbiological · _- permission. This Is.for the mutual protection of the public, our clients, and ourselves. Enwronmental · IOM ' AssOcIATeD LABoRATo~'ES ' COMMrI'MEN'I' ~0 ~[/ALI'IY ° QUALITy CONTROL/QUALITY ASSURANCE REPORT G39431 QA/QC CONTROL NO. G39473,3 INSTRUMENT LOGBOOK Hyd 1-4 DATE G39473-3 ANALYZED Oct 12 1992 LL.B. PAGE LOCATION 64 DATE G39431 ANALYZED 'Oct 12 1992 SAMPLE LOG PAGE LOCATION 576 EPA 8020 REPORTING UNITS mg/kg SAMPLE MATRIX soil COMPOUND SR SRI RPD $.A. $$R $$R1 %RE %REI RPD BLK BENZENE 0. 0 · 0 0.05 0.05 0.06 102.0 112 10 0 'ETHYLBENZENE . 0 O' 0 0.05 0.05 0.06 96.0 118 22 0 XYLENES 0 0 0 O. 15 O. 15 O. 18 I00 118 18 0 1,2-D ICHL OR OBENZENE 1,3-D ICHL O ROBENZENE SR---- SAMPLE SRI .... SAMPLE DUPLICATE ., RPD--- RELATIVE PERCENT DIFFERENCE S.A.--- ANALYTE SPIKE IN SAMPLE MATRIX SSR .... SPIKE RECOVERED AND SAMPLE 'SR' SSRI--- SPIKE RECOVERED AND SAMPLE 'SRI' %RE .... PERCENT RECOVERY OF SPIKE IN 'SR' %REI--- PERCENT RECOVERY OF SPIKE IN 'SRI' BLK .... ANALYTE CONCENTRATION DETECTED IN LAB BLANK 99%--;- UPPER/LOWER CONTROL LIMrr 95 % .... UPPER/LOWER WARNING LIMIT s .......... STANDARD DEVIATION ' 2s ...... 2 x STANDARD DEVIATION (WARNING LIMIT) 3s ........ 3 x STANDARD DEVIATION (CONTROL LIMIT) MEAN-- TIME WEIGHTED AVERAGE OF SPIKE RECOVERY SURROGATE SPIKE DATE BENZENYL FLUORIDE SPIKE CONCENTRATION OF 150 ng WITH A RECOVERY OF BEN'ZENYL FLUORIDE RECOVERY LIMITS OFS! % TO 129 % PASS / NO PASS.-- ~/~. DATE TYPED Oct 13 1992 A133201 ACTION TAKEN ' SPIKE SOURCE EPA Repository Dil. STANDARD LOT NO. BTX 32092 ANALYST Abe Ahari QA / QC coMpILER ASSOCIATED LABORATORIES · COMMITMENT TO i2[IAI. J'iY · QUALITY CONTROL/QUAL1TY ASSURANCE REPORT G39431 CONTROL NO. Lab Soil INSTRUMENT LOGBOOK D #4 QA/QC DATE Lab Soil ANALYZED Oct 9 1992 I.L.B: PAGE LOCATION 125 DATE G39431 ANALYZED Oct 9 1992 SAMPLE LOG PAGE LOCATION EPA. 8015M/D.H.s.L.U.F.T. REPORTING UNITS mg/kg SAMPLE MATRIX soil COMPOUND SR SRI RPD S.A. $SR SSR1 %RE ' '%RE1 RPD BLK GASOLINE SR I-- S AM PLE DUPLICATE RPD---- RELATIVE PERCENT DIFFERENCE S.A.--- ANALYTE SPIKE IN SAMPLE MATRIX SSR--- SPIKE RECOVERED AND SAMPLE 'SR' SSRI--- SPIKE RECOVERED AND SAMPLE 'SRI' %RE .... PERCENT RECOVERY OF SPIKE IN 'SR' %RE]-- PERCENT RECOVERY OF SPIKE IN '$Ri' BLK ..... ANALYTE CONCENTRATION DETECrED IN LAB BLANK 99% ..... UPPER/LOWER CONTROL LIMIT 95 % .... UPPER/LOWER WARNING LIMIT s .......... STANDARD DEVIATION 2s ....... 2 x STANDARD DEVIATION (WARNING LIMIT) 3s ........ 3 x STANDARD DEVIATION (CONTROL LIMIT) MEAN-- TIME WEIGHTED AVERAGE OF SPIKE RECOVERY SURROGATE SPIKE DATE BENZENYL FLUORIDE SPliCE CONCENTRATION OF WITH A'RECOVERY OF BENZENYL FLUORIDE RECOVERY LIMITS OF TO PASS / NO PASS DATE TYPED Oct 13 1992 B13320i ACTION TAKEN SPIKE SOURCE SH-D · STANDARD LOT'NO. D-I00392 ANALYST Quat Do QA / QC COMPILER /~/ /~____~ AssOcIATED LABORATORIES" ' CHAIN OF CUSTODY RECORD 806 .. Batavia. Orange. CA 92668 /~__.~, / (714) 771-6900 · FAX: (714) 538-1209 Date ADDRESS~ ~ ~ ~D ~ ~ ~ PROJECT MANAGER -,, County Seals Intact Yes No PHONE NUMBER ~) ~_~ ~ Sample Ambient__ Cooled__ Frozen__ PROJECT NAME SAMPLERS: (Signature~. J~ Same Day 24 Hr. . Regular , SAMPLE TYPE NO OF SUSP. TESTS SAMPLE LOCATION DATE TIME CNTNRS CONTAM. NUMBER DESCRIPTION WATER AIR SOLID REQUIRED (Signature) S~ecial Instructions: APPENDIX A SMC Laboratory Analytical Chemistry 3155 Pegasus Drive P.O. Box 80835 Bakersfield, CA 93380 (805) 393-3597 Client Name: Groundwater Resource Industries Address : 5610 District Blw.~.., Suite 106 Bakersfield, CA 93313 Date samp;e received : 1-19-88 Date analysis completed: 1-27.-88 Date of report : 1-27-88 Labora'~ory No. 125 through 130 Project No. 07157 RESULTS OF' ANALYSIS ~-~ 123 lID: B1-5 ugm/gm MRL,ugm/gm Method Benzene 0. 10 0. i 3810/8020 Toluene ND 0. 1 Ethylbenzene ND 0. 1 p-Xyl ene ND 0. 1 m-Xylene ND 0. 1 c~-Xyl ene ND 0. 1 isopropylbenzene ND 0. 1 '?'PH (Diesel) 1910 10 CS-~Extraction :~t 124 ID: B1-10 ugm/gm MRL ~ ugm/gm Method Benz erie ND 0.7 3810/8020 Toluene 2.5 0.7 Ethyl benzene. 1.2 0.7 p-Xylene 2.7 0.7 m.-Xyiene 5. 1 0.7 o- X y 1 e n e 5.0 0.7 Isopropylbenzene ND 0.7 TPH (Diesel) 4280 10 ~ · ' ~o~Extract~ on ugm/gm = micrograms per gram (ppm) MRL = Minimum Reporting Level TPH = Total Petroleum Hydrocarbons ND = Not deteoted Start Comer' SMC Labormtory Anal yticml Chemistry 3155 Pegasus Drive P.O. Box 808~,5 Bakersfield, CA 93380 (805) 393-3597 Laboratory No. 123 through 130 Project No. 07157 RESULTS OF ANALYSIS ~i25 ID: B1-15 ugm/gm MRL ~ugm/gm Method Benzene ND 0. 1 3810/8020 'l'oi uene ND O. 1 Ethylbenzene ND 0. 1 p-Xyl erie ND 0. 1 m-Xyl ene ND 0. 1 o-Xyl ene ND 0. 1 I sopropylbenzene ND 0. 1 ]PH (Diesel) <10 10 CS~Extraction ~126 ID: B1-20 ugm/gm MRL, ugm/gm Method Benzene ND 0. i 3810/8020 Toluene ND 0. 1 Ethyl benzene ND 0. 1 p-Xyl ene ND 0. 1 m-Xyl erie ND 0. 1 o-Xylene ND 0. 1 Isopropyl benzene ND 0. 1 TPH (Diesel) < 10 10 CS~Extraction ugm/gm = micrograms per gram (ppm) MRL = Minimum Reporting Level TPH = Total Petroleum Hydrocarbons ND = Not detected SMC Laboratory _ Analytical Chemistry ~ 55 1 Pegasus Drive P.O. Box 80855 Bakersfield, CA 9.3380 (805) 393-5597 Laboratory No. 123 through 130 Project No. 07157 RESULTS OF ANAI.YSIS ~127 ID: B2-5 ugm/gm MRL, ugm/gm Method Benzene 11.8 O. 7 3_']810/8020 Toluene 13.7 0.7 Ethyl benzene 5.3 0.7 p-Xylene 23.5 0.7 m-Xyl ene 3.72 0.7 o-Xyl ene 9.53 0.7 ISopropylbenzene ND 0.7 TPH (Diesel) 4070 10 CS~-Extraction ~128 ID: B2-10 ugm/gm MRL, ugm/gm Method Benz ene 11 2.0 3810/8020 Toluene 22 2.0 Ethylhenzene 12 2.0 p-Xylene 29 2.0 m-Xyl erie 5.3 2.0 o-Xyl erie 9.5 .~°. 0 Isopropylbenzene ND 2.0 TF'H (Diesel) 2490 10 CSmExtraction ugm/gm = micrograms per gram (ppm) MRL = Minimum. Reporting Level TPH = Total Petroleum Hydrocarbons ND = Not detected ,SMC Laboratory Analytical Chemistry 3155 Pegasus Drive P.O. Box 80835 Bakersfield, CA 93380 (805) 393-3597 Laboratory No. 123 through 130. Project No. 07157 RESULTS OF ANA/.YSIS #129 ID: Y~'" 4=- r ...-.~ ugm/gm MRL, u.qm/gm Method Benzene ND ~.o (] · 3810/8020 T o 1 u e n e N D '2. Ethylbenzene 4.3 2.0 p-Xylene 12 2.0 m-Xylene 18 ~.o 0 o-Xyi ene Isopropylbenzene ND ~.') 0 TPH (Diesel) ~,z,~ 10 CS~Ex tr act i on 510 ID: B2-20 ugm/gm MRL,ugm/gm Method Benzene ND 2.0 3810/8020 Toluene ND 2.0 Ethylbenzene 3.0 2.0 p-Xyl ene 7.9 2.0 m-Xyl ene 22 2.0 o-Xyl erie 15 2. (] isopropylbenzene ND 2.0 TF'H (Diesel) 3370 10 CS-~Extraction ugm/gm = micrograms per gram (ppm) MF.,'L = Minimum F,'eporting Level TPH = Total Petroleum Hydrocarbons ND = Not detected St an Comer SMC Laboratory _ Analytical Chemi s'~ry 3155 Pegasus Drive P.O. Bo,,: 80835 Bakersfield, CA 93380 (805) 393-3597 Client Name: Groundwater Resource Industries Address : 5610 District Blvd., Suite 106 Bakers.~ield, CA 93313 Date sample received : 1-27-88 Dat. e analysis completed: 2-04-88 Dat. e c~.f:: report : 2-04-88 Labora'Lory No. iSZ; through 18'7 F'roject No. 07157 RESULTS OF ANALYSIS ~:~ J. 83 ID: B-3-5 ugm/gm MRL, ugm/gm Method Benzene 1. i 0.5 3810/8020 Toluene 2.5 0.5 Ethylbenzene 3.4 0.5 p-Xyl ene 5.3 0.5 m-Xyl ene O. 44 0.5 o-Xyl ene .3.4 0.5 Isopropyl benzene ND 0.5 TF'H (Diesel) 12,110 1,000 .CS--Extraction ~i84 ID: B-3-10 ugm/gm MRL, ugm/gm Method Benzene ND 0.2 3810/8020 Toluene ND 0.2 Ethyl benzene ND 0.2 p-Xyi ene ND 0.2 m-Xyi ene ND 0.~ o o-Xylene ND 0.2 I sopropyl benzene I',.ID 0.2 TPH <Diesel ) 5,260 50 CS~Extraction MRL = Minimum Reporting Level TPH = Total Petroleum Hydrocarbons ugm/gm = microgram per gram ND = Not detected SMC Laboratory Analytical Chmmi stry 3155 Pegasus Drive P.O. Box 80835 Bakersfield, CA 93380 (805) 393-3597 Laboratory No. 183 through 187 Project NO. 07157 RESULTS OF ANALYSIS -i~ 185 ID: B-3-20 ugm/gm MRL, ugm/gm Method Benz erie ND 0. i 3810/8020 Toluene ND 0. 1 Ethyl benzene ND 0. 1 p-Xylene ND 0. 1 m-Xyl ene ND 0. 1 o-Xyl ene ND 0. i Isopropylbenzene ND 0. 1 TPH (Diesel) ND 10 CS~Extraction ~186 ID: B-3-30 ugm/gm MRL, ugm/gm Method Benzene ND 0. 1 3810/8020 Toluene ND 0. 1 Ethyl benzene ND 0. 1 p-Xylene ND 0. 1 m-..-.Xyl ene ND 0. 1 o-Xyl ene ND 0. 1 Isopropylbenzene ND 0. 1 TPH Diesel ) ND 10 CS~Extraction MRL = Minimum RepOrting Level TPH = Total Petroleum Hydrocarbons ugm/gm = microgram per gram ND = Not detected SMC Laboratory Analytical Chemistry 3155 Pegasus Drive P.O. Box 80835 Bakersfield, CA 93380 (805) 393-3597 Laboratory No. 183 through 187 Project No. 07157 RESULTS OF ANALYSIS · ~1137 ID: B-3-40" uqm/gm MRL, ugm/gm Method Benzene ND 0. I 3810/8020 Toluene ND .0. 1 E'thylbenzene ND 0. 1 p-;..Xyl erie ND 0. 1 m-Xylene ND 0. 1 o-Xylene ND 0. 1 I sopropyl benzene ND 0. 1 TPH (Diesel) ND 10 CS=Extraction MRL = Minimum Reporting Level TF'H = Tc, tal Petroleum Hydrocarbons ugm/gm = microgram per gram ND = Not c~etected St. an Comer SMC Laboratory Analytical Chemistry 3155 Pegasus Drive P.O. Box 80835 Bakersfield~ CA 93380 (805) 393-3597 Client Name: Groundwater Resource Ind~stries Address : 5610 District Blvd. , Suite 106 Bakers.~i eld, CA 93313 Dative sample received : 2-01-88 Date analysis completed: 2-08-88 Date o-~ report : 2-08-88 Laboratory No. 218 Project No. 07157 RESULTS OF ANALYSIS ~218 ID: MW1-1 ugm/L MRL, ugm/L Method Benzene ND 0.5 ~'- ~ ..... 'Tal uene ND 0.5 Ethylbenzene ND 0.5 p-Xyl ene ND 0.5 m-Xyl ene ND 0.5 c,-Xyl ene ND 0.5 Isopropyl benzene ND 0.5 TPH (Diesel) 950 100 Pet. Ether Extr MRL = Minimum RepOrting Level TPH = Total Petroleum Hydrocarbons ugm/L = micrograms per liter ND = Not detected APPENDIX B ~ f~,.~-- GROUNDWATER ~6~0 txs~ e~d.. Sure ~06 ~~ RESOURCE~kersfie~. ~;~n~ g3313 (805) 835-71~ -- ~ers~e~ INDUSTRIES c.~,, o~ CUSTOOY R[CORD 1213) 724-3147 -- ~ ~geles ~ ~ gAB"S ETC~ " S~LE ~ ~ S~LE LOCATION RECENT ~ ~ Reli~hed by ~Si~ture) O~te~ime R,cetved bg :(Signeted) Relin~uist~d by: (Signature) Date ~e ReeeiYed by: (Slgn~t~e) Re1~quls~d bg :(Signature) Date/Time Received bg: (S~nat~'e) Re~,Ji;hed bi :(Signature) Date/Time Received Rel~qu~shedbg :(Signature) Date~e Recetved for Labora~g bg: Date~e Remar~ CC: L AB RESOURCE "~' ~kersfieU. ~f~ 93313 '~ ' :. 1805) 835-77~ -- ~ersfie~ INDUSTRIES c.,m o~ CUSTOOY RECORD 1213) 724-3147 -- ~ ~geles SN~L[RS: (Si;nat~) P~JECT NUr-IB~ C~DIT~I ~ ~ ~ Reli~hed b~ ~Si~ature) Date~e RecetYed bg: (Stgnat~e) Relinqu~st~d bg: (Signature) Date ~e Re,etved bV: (~gn~t~e) Rel~qub~t b~ :(SiDature) D,te/Time Re,elved bg :(S~n~t~,) Re~uished bj :(Signiture) D,te~.~ .... Received~~O-~- Rel~qulshed bv :(Sign~ture) D*te~ime Received for Lab~at~ bV: Date~e Remar~ cC: · FILE 154g ~. ,, 15Hr 't~e m~t}: GROUNDWATER 8s~o ~strU ~vd., S~t. lC)8 RESOURCE Bakersfield. California 93313 (805) 835-7]'00 -- Ba~ersfield INDUSTRIES C.,~,. 0i= CUOTOI)¥ RECORD !213) 724-3147'--Los Angeles ~SAI'~:'~:R$: gna~re)~.+ PF~JE(:;T NUr.aBF.~ CONDIT ION ~ ~ Rel~bhed by ~Si~ature) Date ~e R~cetYed by: (Si~nat~e) Relinqu~st~d bg: (Signature) Date ~e Received bg : (~gnat~e) Rei~uis~d bg :(Signature) D~te/T~e R~cetved by :(S~nat~'e) Re~,ji~hed ~ :(~i~nature)_ Dlle/Time _~lved bg-~~e)~ Rel~qui~hedbg :(Signature) Date~e Received for Lab~at~g b~: Date~e Remar~ CC: APPENDIX C SAMPLING PRO TO C.O L APPENDIX TEST BORING PROCEDURES I. Soil Sampling Protocol The following procedures are followed during soil sampling operations utilizing the hollow stem auger drilling technique. A. Hollow Stem Auger 1. Soil borings drilled by the hollow stem auger utilize continuous flight hOllow stem augers. 2. Augers, samplers.and'all downhole equipment are steam cleaned prior to.use. In the field steam cleaning is done between borings to minimize the Potential for cross-contamination. 3. A G.R'.I. geologist observes the work, visually logs the soils, and collects.samples at appropriate. intervals. 4. The Unified Soils Classification System is utilized to classify soils, encountered. Additional geologic observations are noted as appropriate. 5. Soil samples destined for laboratory analysis are collected by a modified California Split Spoon. This sampler uses three, six inch long, by two inch diameter (o.d.} tubes. Various' tubes can be utilized to accommodate the type of analysis necessary:. Brass - All organics and general analyses (not to be used for copper or zinc analysis) Stainless - All organics and metals analyses Steel for cOpper and zinc (not to be used for chrome or nickel analyses) Plastic - All metals analyses (not to be used for organics) APPENDIX - MONITORING WELL SAMPLING PROTOCOL II Groundwater Sampling A. Decontamination The following procedure details, the routine that'is employed in decontamination of groundwater Sampling equipment prior sample collections · ' 1. Exterior surface of sampling, tubes are decontaminated by steam-cleaning during withdrawal fromevery well. 2. Sample pump is disassembled and the used bladder removed. 3. Ail pump components are then steam-cleaned and rinsed in distilled water. 4. Pump is reassembled with a new bladder installed. 5. Teflon sampler'lines are pressure washed with 5 ko 10 gallons of clean, hot water through direct connection to .~Ceam-c.leaner. · 6. Five gallons Of distilled water are then'~umped through' entire syste~. . ?. Prior to sample.collection, a minimum of five well volumes are purged from the well to permit collection of a r~presentatlve groundwater sample .from the aquifer penetrated. B. Purge Volume. Determination The following procedure is followed'to determine the appropriate purging .volume prior to well sampling. 1. The depthJto-water is measured by a clean, electric water level indicator. Measu=ement datum is the top of fill' ring or top of well protector. 2. Depth to th~ bottom of the well is measured by'a clean tape and plump bob.. If possible,.this is compared to the well cons=ruction log to. determine inconsistencies, i.e. .damaged casing, sediment 'in caiing, etc. [. ~er volume £s calculated'by, multiplying .total Water one wel~ volume, ¢. Well Purging .and Sainpling 1, Pr~or to sampling, a minimum or'three .to 'five well volumes are,pu~ged from each well. t~ ensure that water smnpled is representative of. ~he g~ouadwateF ~£th~n 2. ~easurements of p~, conductivity and temperature are taken a~ frequent intervals du~tn.g the purge. Stablllizatton .of these values indicates that representative formation fluids are belng..removed from 3. Zn. khe even~ tha~ the ~e[l ls'p~ped.dgy, an altegna~e. procedure will bo followed. Once,~ well Is pumped the waCeg ~h~C*.en~ers the ~ell ~uglng.fecoveg~ ls,.' b~ deELnl~lon~ representative fo~ton ~a~er. The ~t11, Chegefoge, be pumped dr~ and'.allo~ed ko recover ko 80~ or more of Oho ogt91nal ~er level.~ 4.** Purge ~ateg t.s pumped directly 1nfo barrel8 on ,the proper method of disposal Is de~e~lned. 5.* S~ples p~ped directly lnko s~pltnq b0kkles prepared the sC~e cer~t~led l~bofakor~.,con~r~c~ed [o~ the p~rClcul~r job*~ege i~beled and p~ced in refrigerated coolegs Eot ~r~nspor~ ~o ~he 6.. S~ples are deltve~ed directly to. t~e lab on the s~e'da~ of s~pl~nq'by cour~er, ~henever,prac~lcal. II nex~ day delivery 18 neces'sary, the s~ples-a~e, kep~ re[rtgeraCed ~.C 4 deqree8 C ~egntghC and dellvered.~o.che the fol~o~tnq 7. S~ple8 are accompanied by a *~aln,of Cusk~d~* form.vhtch .doc~enCs the ~tme, ~aCe ~nd Fepponstble person durln~ each seep of ~he transportation process. 8. The G.R.Z. Coded a~ple n~ertn~ s~sbem allo~s identification of s~ple and clien2 to G.R'.Z.,.whlle no~ revealin9 the clien~ ~o the labog~ogy or o~her interested p~r~tes. 5610 DISTRICT BLVD., SUITE 106 groundwater resources inc. BAKERSFIELD, CALIFORNIA 93313''~ General. Eng neer ng Contractor Class A License No. 520768 EXECUTIVE SUHHARY BIG VALLEY TRUCK STOP 3115 Pierce Road Bakersfield, CA MAILING ADDRESS: P.O..BOX 9383, BAKERSFIELD, CA 93389 (805) 835-7700 OTHER LOCATIONS: LOS ANGELES (213) 724-3147 PLACENTIA 1714) 528-2415 .0 · ~ 5610 DISTRICT BLVD., SUITE 106 groundwater resources inc. BAKERSFIELD, CALIFORNIA 93313 General Engineering Contractor Class A License No. 520768 February 11, 1988 [~s. Amy E. Green Environmental Health Department Hazardous Materials Management Program Kern County Health Department i700 Flower Street Bakersfield, CA 93305 Re: Executive Summary Big Valley Truck Stop 3115 Pierce Road Bakersfield, CA Dear tls. Green, The following is a summary of work completed by Groundwater Resources, Inc. (GRI) in the investigation of known diesel fuel contamination a% the above referenced facility. Two dispensers were found to have leaking Shear valves during the process of tenting'the product lines for tightness. Following the replacement 'of these valves, the product lines' were isolated and passed a tightness test. However, it was discovered during several site' visits by the County that fuel product had puddled beneath the two diesel dispensers with shear valve problems. The Kern County Health Department then required the facility to determine the vertical and horizontal extent of contamination belOw these two dispensers. GRI was retained to investigate the site. A Site Characterization Plan, dated September 16, 1987 with an addendum dated November !6, t987, was submitted and approved by the County on December i, 1987. On. January lB, !988, our firm completed two soil borings to a total depth of 20 feet. The borings were made with 8-inch diameter, continuous-flight hollow stem auger equipment using the B-53 drilling rig. The drilling was performed by Melton Drilling of Bakersfield, California under the supervision of a GRI geologist. A los'of each boring is presented in Plates 3 through MAILING ADDRESS: P.O. BOX 9383, BAKERSFIELD, CA 93389 (805) 835-7700 OTHER LOCATIONS:' LOS ANGELES (213) 724-31.47 PLACENTIA (714) 528-2415 MS. Amy E. Green Kern County ~Health Department ~Feb~uary 11,-1988 Page Two BOring B-1 was drilled at a 25 degree angle, bearing N35E, beneath dispenser #4 (see Plot Plan, Plate 2 for details). Undisturbed soil samples were taken at the 5, 10,15, and 20 foot interval. Boring B-2, was drilled beneath dispenser #2 at a 25 degree angle, bearing NYOW. Undis%urbed soil samples were taken aL the 5, 10, 15 and 20 foot interval. Boring B-3, drilled on January 26, 1988, is located approximately 6 feet northwest of dispenser #4 and is a vertical boring that was angered to a total depth of 40 feet. A small truck mounted drilling r'ig was used in order %o fit beneath ~the canopy. Soil samples were ob%mined at the 5, 10, 15, 20, 25, 30~ and 40 feet interval. Boring B-3 was compleLedas a monitoring well (MW-1~) using 2-inch PVC casing. See Log of Boring B-3, presented in Plate 5, for well construction details. The water table was encountered at 21.5 feet. The soil samples were obtained using a Modified California Split Spoon Sampler and described as they were acquired. The augers and ' downhole equipment~ including samplers, were steam cleaned between successive borings ko avoid contamination. Once the samples were obtained, they were capped, sealed, labeled, and placed on ice for transport to a state certified laboratory for analysis. A chain of custody was maintained and is presented in Appendix B. Soil samples taken from %.he the boreholes were analyzed for benzene, %otuene~ xylene, and ethlybenzene (BTX&E) using EPA method 3810/8020. Total petroleum hydrocarbons '(TPH) as diesel was also analyzed using the CS2 extraction method recommended by the Department of Health Services. Copies of the laboratory analyses are included in Appendix A. FINDINGS Boring B-l,- because it was slant, drilled, provides· lateral information on the ext'en% of contamination beneath dispenser #4. The 5, 10,' 15, and 20-foot samples indicated non-detectable to minimal levels of BTX&E. However, the 5 and 10 foot sample revealed 1910 ppm and 4280 ppm of TPH, respectively, while the 15 and 20 foot sample showed less than the minimal reportin'g level for TPH. Ms. Amy Green. ' Kern County Health Department _ February 11, 1988 Page Three Boring B-3, ia a vertical boring located approximately 6 feet northwest of dispenser #4. Onty the 5 foot sample indicated any BTX&E, and except%or a minor amount of Benzene, it is Well below action level. Significant amounts of TPH were found in the 5 foot sample (12,1.10 ppm) and 10 foot sample (5,260 ppm). The 20, 30, and 40 foot sample allowed non-detectable levels for both BTX&E and TPH. As'described above, Boring B-3 was converted to a monitoring well to enable the sampling of groundwater. The water table gradient was measured at 21.5 feet using a water level sounding device. Five well volumes were purged from the well and a 2' liter sample was obtained on February 1, 1988. The BTX&E analysis revealed non-detectable levels of contamination while the TPH analysis· indicated 950 ppb of diesel product present in the. groundwater. Boring B-2, is theonly boring'located atdispenser #2. It was slant drilled at 25 degree angle beneath the dispenser and sampled at the 5, 10, 15, and. 20 foot interval. Minor amounts with decreasing concentrations of BTX&E were found in all of the samples, except for %he 5 and 10 foot sample which had above action levels of Benzene. 'Significant amounts of TPH were found in the 5 foot sample (4070 ppm) , 10 foot sample (2490) , 15 foot sample (3320 ppm), and the 20 foot sample (3370 ppm). CONCLUSIONS ON PRESENT FINDINGS A total of three borings have been drilled at the Big Valley Truck StoP facility. Two of the borings ~(B-1, B-3) provided information on the extent of contamination beneath dispenser #4 and one Boring (B-2) provides information on the presence of contamination beneath dispenser #2. Dispenser #4 - The accessabitity of drilling beneath dispenser is limited due to the Overhead canopy~ the fueling island, the truck scales on the east side of the fueling island~ and the inability for smaller drilling equipment to alan% dril~ underneath the canopy. Laboratory analysis of soil samples from Boring B-i and B-3 indicate the presence of above action level diesel fuel contamination from tile surface down to 10 feet. The vertical and lateral extent, of contamination beneath dispenser #4 has not been fully assessed because of the drilling difficulties mentioned above.. The zone most likely to contain a plume of contamination from the source down to groundwater (21.5 feet) would be directly beneath the dispenser. Only the 10-foot sample frOm Boring B-1 was able to penetrate that zone. Ms. Amy Green .- Kern County Health Department February 11, 1988 Page FoUr. Contamination was not detectable from 15 feet below grade down to the water table in either of the two borings. However, 950 parts per billion (ppb) of TPH was detected in the groundwater at MW-1 (Boring' B-3), which is downgradient from the potential source. Therefore, a plan designed to investigate the zone ·where the vadose plume would most likely exist should be implemented based on the drilling restrictions at this'location. Dispenser #2 - Soil samples analyzed from Boring B-2 indicate above action level concentrations of TPH from the surface down to 20 feet in depth. This confirms the presence of contamination beneath the dispenser, therefore, a drilling Program should be designed to ful}y assess the lateral and vertical extent of the ~vadose plume. The drilling restrictions at this location include the overhead canopy, the fueling island, and the inability, for smaller drilling equipment to slant drill at an optimum angle underneath the canopy. However, conventional drilling equipment can ·slant drill at this dispenser from the south end in a direction from southwest to northeast. PROPOSED PLAN OF ACTION The following plan of action is based on the premise ~hat puddled diesel product was observed beneath dispensers #2 'and #4, thereby indicating that they represent two distinct potential sources of contamination. For Dispenser #4: Drill one or two borings, depending on on-site field observations, that would spud in south of Boring B-1 and be slant drilled to investigate the area directly beneath and to the south of Dispenser #4 between the surface and 20 feet. These borings would probe the zone most likely to Contain a vadose plume and provide information as to its lateral and Vertical extent. See Plot Plan~ Plate 2, for proposed boring locations. ~orDispenser #2: A total of 'three borings are needed to characterize, this location. One~ to be drilled vertically with the truck mounted rig northeast of the dispenser down to 20 feet. The second would 'be'slant drilled with the B-53 rig from the southwest side of the fueling island towards' the northeast to a depth of 20 feet. The Ms. Amy Green Kern County Health Department February 11, 1988 Page Five angle~ of the boring would be designed to. determine if the. plume extends down to the water table beneath the dispenser. A third boring would be drilled northw~est of the dispenser down to a planned depth of 40 feet. This boring would be completed as a monitoring . well %hat 'is downgradient 'from the potential source beneath dispenser #2.. in addition to information on the lateral extent of the vadose zone plume, the groundwater can be sampled from this well to determine if groundwater contamination has occurred. If the laboratory .analysis of the groundwater sample indicates the presence of diesel fuel in concentrations above action levels of the County, then further characterization would be necessary to define the extent of groundwater contamination. SOIL BORINGS AND SAMPLING PROCEDURES During the boring project all samples will be logged by a GRI geologist, and transported to a state certified laboratory for analysis. The same boring procedures, sampling protocol, and safety considerations in GRI's Site Characterization Plan will be followed. A copy of GRI's Sampling Protocol is inclUded in Appendix C. If you have any additional questions or input, please contact our office at (805) 835-??00. Very truly yours, Rex J Y, Project Geologist Regis list DEF: dji. , , cc: Mr, Calvin Okeya Mr. Vinee Padua o q ~, .. o ~,_eI · "22 .........i '.o%"1' .: GROUNDWATER RESOURCE BZG VALLEX TRUCK STOPS PLATE INDUSTRIES-(805)835-7700 3~z5 PT~aCE ~tOaD BAKERSFIELD, CA 1 erlvirorlrrlerlt~] / ~,teChrli~! services / ~,-oj~,.u.,,,~r: o~,~ LOCATION MAP · · I~ueling !sland .. ' ' I~ueling island BUILDING dispenser *1 dispenser '3 dispenser *4 dispenser *2 truck scales I~_ B-1 (SLANT 254) [BEARING N351~] t· §-2 (SLANT 25~] [BEARIN(~ N3OW] ~) B-3 VERTICAL FIONITORING WELL 0 PROPOSED BORING 1 inch - 12 Feet, N ~ PROPOSED SLANT DRILLED BORINGS I I I · iLA~ROPOSED BORING/I'IONITORING WELL 0 6 12 : BIG VALLEY TRUCK STOps PLATE 6ROUNDWATER RESOURCE : i'NDU~TRiE~,(aOS)a35_7700 31 15 PIERCE ROAD I BAKERSFIELD, CA.- 9 ~envlronmental/geotechnlcal services z_.' PLOT PLAN I. CH£HICAL ANALYSES SAHPLE I-~ Laboratory Field - !E WELL CONSTRUCTION DiEsELTPHasPJ.D.~ '~ ~: ~ ~' ~- r= '_o* "~ ~IL DE~RIPTION in m [~1 concre~ ~eal ~ ~70 32 5 -~'2 B-2-5 ~ Sill., gry/~n, slighUY'clayey, - -- ~ slighUy sa~y, fln~atned, Io~ -- -- -- plasticity, damp, s~ong diesel Backfllled wt~ -- ~ ~ odor ~ AIl~urpose sand - 2490 37 23 _' I0_- B-2-10 ' :' ,: ~ 'SILL grey/bm, clayey, damp, A ~ ~ _ Iow plasticity, s~ong diesel odd - 3320 32 26 -~5~ B-2-15 ~:~:::::::.... SM Sand, an, very fine grained, -- T.D. 20 FT . ' 3370 32 25 _' 20_-~ B-2-20 SP Sand, dark grey. ~ black, mediu : : _ ~ coarse grained, moist, clean -- _ _ s~ong diesel odor 25 I. 40 -- - - NO~: 45 ~IS B~IN6 WAS A~LE _ _ DRILLED AT A 25e SLANT -- -- - BEARIN6 N3OaW. .;U SU~ACE ELEVATI~: 405 FT L~6ED BY: OEF -- TOTAL OEPTH: 20 FT. VERTICAL SUPERVISED BV: DEF DA~ DRILLED: !-18~8 OIA~E~R ef B~IN6:8 INCH '-' ~A~R ENC~N~D AT: N~E ' ~ OROUNOWAIER RE~URCE'INOUSTRIE$ L~Allffi: ~ PLA' ~ (805)835-7700 BIG VALLEY TRUCK STOP ,n~ envlronmental/~t~hnl~l ~rvi~ eR~ECT NUHBER: 07.1~7~ LOGOF CHEMICAL ANALYSES SAMPLE Labo?a Field o -" :" -' ~ -~ '~ SOIL DE~RIPTION WELL CONSTRUCTION TPH aS DIESEL P.I,D, in DDm Dpm .::..::-.::.. :~:::~ 0 cemen~ ~:~'~: ~;'"~':" -- ~... ~:::;~:~:: -- _ _ bentonite ~'~ ~ -- -- -- .... seal ~5~~ ~ ~ 12110 310 9 -5-~ B-3-5 :.:.:-:.: S~......... Sand,.b~n, fine to medium g~ained, '~;~ ?/~ -- -- ~:~:]::::'"' very siltY, slighUy clayey, ~~ ~ -- -- ~:~], moderately firm, damp, strong .- "':':':'~ )e~oleum odo~, Filte? pack .' 5260 318 28 I0 -~ B-3-10 ~.~' - _~ ~ ML Silt, Lan, clayey, sandy fine *16sand -~ .' -- '-- ,~,:'~. g?ained, stained, loose, Iow Schedule 40 ~ _ .~ plasticity, dam~, peL?oleum <~;~? odo~. 2" PVC ~; ' . . _ ND 52 24 _--' 15_-~ B-3-15 ~'"~8~ S~nd, oe~nge ~ ~n, ~ry fine ' · -- ....... no ~ ". .; ._ ND 46 17 ~O~l B,3-20 SP Sand, ~n to light bm, fine ...... _ _ ' coarse grained, clean, moist, W,T~ 21'6 .... .... lo'ose, poorly graded, no odD?. :' _ :.: :.: ...... Bottom .' -.'~ I B-~-30 . SP Sand, bFn, fine to coarse, slightly - - silty, saturated, loose, pooHy Cap~ .' '.*._ _ _ . . ~ ....... .... .'. g~aded, no odo~, ..,.;., ...............:...........:,;.:.~. 35 · Lost hole .~:..::::,::~::.e:;;:.::e;-~,~;:: - - - r. '. ,::.:.....-..::.,.:..::..:.%..;.~.~:., ~ ~ ~ . T.D. 40 FT _ ND 20 9 _~ 40_- I B-3~O "'~ SP Sand, b~n, coarse g~ained wi~ : -- occasional pebbles, slightly silly, -- saturated, loose, pooHy g~a~ed, ~ no odor. -- ND- N~E -- DETECTED SU~ACE ELEVATI~: 405 FT L~6ED BY: DEF TOTAL DEPT~: 40 FT . SUPERVISED BY: DEF DATE DRILLED: 1-26~8 DIA~E~R or B~IN6:8 INCB rATER ENC~NTERED AT: 21.5 6ROUNDWATER RE~URCE INDUSTRIES L~AT~: PLATE (805)8~5-7700 BI G VALLEY TRUCK STOP environmental/g~t~hni~l ~rvi~ -ADVANCED ENVIRONMENTAL CONCEPTS INC- SOIL EXCAVATION WORK PLAN Mainland Pacific Development Company Former Big Valley Truce StOl3 3115 Pierce Road County of Kern . Bakersfield, California April 1992 : APR ~0!1992 *' :.; -ADVANCED ENVIRONMENTAL CONCEPTS INC, I Advanced Environmental ~a3nceplzt, Int. is pleased to pnment tile folluw;n~ Soil Excavation Work Plan ~or Mainland Pacific Development Company Former Big Valley Truck Stop 3115 Pierce Road This report has been prepared for. Mainland Pacific Development Company April 199~ · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 · 13AKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 ~ l~cmvafion Work Plan Advanced l~nvironm,mtai ~oneept~ Inc. Table of Contents Snbj :t 1.0 INTRODUCTION 1. · 1.1 ~ 1 19. F~opo of Work 1 1.a Schedule ~ 2.0 BACKGROt]ND 2 3.0 PHYSICAL CHARAC"rERISTICS 3 3.1 Region-1 Geolo~ 4 39. Hydrogeology 4 4~0 WORK PLAN 4 4_1 Abandon Monitoring Well MW-3 4 4_2 Extent of Hydrocarbon Mi~oration 4 4.3 Excavation Mc~d~ods 4 4.4 Samplin~ Method~ 5 4.5 BaeIrh~ and Compaction ~ 5.0 RI~~/SIGNATURES 7 Appendices: B) Well Abandonment Permit Application C) Health & Safety Plan · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 * BAKERSFIELD, CA93313 805/831-1646 - FAX805/831-1771 ~ l~,~vation Work Plan Advanced gnvirnnm,~al Coneep~ Inc. 1.0 .. INTRODUCTION This work plan describes the procedures to be emplOYed by Advanced Environmental Concepts, Inc. (AEC) to excavate diesel impacted soil in the vicinity of the former fuel dispensers operated by Big Valley Truck Stop, 311§ Pierce Road, Bakersfield, California (l~lgu~e 1). This work plan has been authorized by Mr. Calvin Okeya, Mainland Pacific Development Company. The Kern County Environmental Health Department (KCEHD), represented by Mr. Michael Driggs, is the lead agency for this projecL The excavation services described in this work plan have the following objective: Excavate and aerate diesel impacted soil from beneath the former diesel dispensers. After acceptable hydrocarbon levels are achieved in the aeration stockpile, and with approval of the KCEHD, the decontaminated soil will be used to ba~.k~l! the excavation. li~. Scope of Work Tho scope of services described in this work plan include: 1. Abandon mom'toring well MW-3, which is within the limits of the proposed excavation. Refer to section 4.1 for specific well abandonment procedures. 2. Excavate soil to a total depth'of approximately 40-feet below grade level (BGL) in the vicinity of the diesel dispensers (Figure 2). The,actual size of the excavation will be determined in the field by AEC's representative and the KCEHD inspector. Approximately 1,600 cubic yards of diesel impacted soil will be excavated. 3. Continually segregate clean soil from diesel impacted soil for later baeld~lllug of the excavation. 4. Stockpile the impacted soil on the asphalt surface located at the south end of the site. The stockpile aimensions are estimated at 240-feet long, by 120-feet wide, by 1.5-feet deep (1,600 cubic yards). 5. Collect confirmatory soil samples from the sides and floor of the excavation and analyze for TPH as diesel by EPA method 3550 (GCFID), and for volatile aromatics (BTXE) by EPA method 8020. The confirmatory soil a~mples will be analyzed by a California State Certified Laboratory. 6. Whitten Excavation will disc the aeration stockpile once a week for 16 weeks. AEC will collect ten (10) representative soil samples from the stockpile immediately following the excavation. At eight (8) and sixteen (16) weeks after the initial samples are collected, AEC will conduct progress s~mpling and the analytical results will be submitted to the KCEHD. 7. ~mpling procedures will be conducted in accordance with KCEHD Guidelines. Excavation walls will be sampled at each 10 foot increment and an additional confirmatory sample will be collected from the floor of the excavation. ~x: ~lV-~2 1 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 · · BAKERSFIELD. CA93313 805/831-1646 · FAX 805/831-1771 8. ' Prov~dea.written' report det-~illng the excavation project, toinclude: 1)excavation methods, 2) sampling methods pertaining to the excavation, 3) eampling methods of the stockpile, 4) nns~l~cics] results, 4) conclusions, and 5) recommendations, d~ laboratory results for soil samples collected from the aeration stockpile will be submitted to the KCEHD with an attached cover letter and site map showing sample points after each sampling program.. 9. Upon reaching acceptable.TPH levels in the aeration stockpile, AEC recommends using it' for backfilling the excavation. 10. The excavation ~dll be backfilled with the remediated soil apprexima~ely 16-weeks after initial aeration. The backfill will be compacted to approximatsly-90% relative compaction using mechanical compaction equipment. 1.3 Schedule AEC anticipates initialing the services described in this work plan within one (1) week upon approval by the Kern County Environmental Health Department~ The report of operations will be submitted to the Client within one (1) month after completion of the above described field work. 2.0 BACKGROUND In April 1990, two (2) 12,000-gallon diesel UST's were removed and in February 1991, one (1) 1,000-gallon waste oil UST was removed from the site. ~°~mples co~dected following tank removal exhibited TPH/BTXE concentrations in excess of recommended action levels. On October 17, 1991 P~ESNA submitted a site assessment report to the KCEHD establishing the lateral and vertical extent of diesel impacted soil in the vicinity of the dispensers at the subject site. The report indicates that diesel impacted soil is present below dispensers 1, 2, 3, 6, and in the vicinity of monitoring well MW-3. The deepest vertical migration of diesel range hydrocarbons wa~ documented at 35-feet below grade level (BGL) in the vicinity of Dispenser 1 (~gare 2). Groundwater was located at approximately 58-feet BGL at the site on August 2, 1992 and was not impacted ~vith petroleum hydrocexbons at that date. Results of the laboratory analyses from the tLESNA site assessment are summarized on the following page. Units are in milllgrnm.~ per kilogram (mg/kg) which are equivalent to parts per milllon (ppm). Xylenes, Tl~I~l Benzene Toluene To~l EthyFoenzene ,~mple ID EPA 3550 FA~A 8020 EPA 8020 EPA 8020 EPA 8020 NB-I-10 2,600 ND ND 0.69 ND NB-l-20 2,300 ND ND 1.2 ND NB-l-30 5~200 ND ND 0.90 ND NB-I~ 130 ND ND N~D ND 1~B-1-45 ND NI) ND ND ND AEC ~lV-lg~2 2 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 ° BAKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 ~ ~ gxcaution Work Plan Advanced Environmental Concept~ Inc. TPH-d Benz~ne Toluene Total Ethyibenzmm ,q~mple ID EPA 3550 EPA 8020 EPA 8020 EPA 8020 EPA 8020 NB-2-10 11,400 ND 0.1 3.0 0.8 NIL2-20 2,900 ND ND ND ND NIL2-30 ND ND ND ND ND NB-3-5 9,100 ND 0.2 3.2 0.9 N'K3-10 7,400 ND 0.5 4.6 1.0 NB-4-10 ND ND ND ND ND NB-K10 ND ND ND ND ND NB-6-5 3,600 ND ND ND ND NB-6-10 ND ND ND ND ND MW-2-20 ND ND ND ND ND MW-3-10 2,600 ND ND ND ND ND: Non-detected The analytical results indicate that the soil beneath dispensers 1, 2, 3, 6, and in the vicinity of monitoring well MW-3 is impacted with diesel hydrocarbons in excess of the California Department of Health Services (DHS) recommended action level (RAL) of 100 ppm for soil. 3.0 PHYSICAL CHABACTERIgTIC8 The following sections summarize the project site features and conditions along with regional geologic and local hydrogeologic characteristics. AHC ~1¥-10~- 3 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD, #206 · BAKERSFIELD. CA 93313 805/831-16,46 · FAX 805/831-1771 ]~rf~lva~ion Work Plait Advanc~l ]~llv~onmAn/~Rl ~onceptH, lllC. 3.1 Regiomd Geology ?he subject site is located near the southern end of the ~ Joaquin Valley on relatively fiat terrain at an approximate elevation of 40~feet above sea level. The regional topographic f~adient is to the southwes~ at approximately nine feet per mile. The presently dry Kern River is locat~i approximately 2,§00-feet southeast of the site. RESNA boring logs indicate the following soil types situated beneath the subject site. Silty fine grained sands were logged to approximately 10-feet BGL, followed by a zone of silty soil to a depth of 14-feet BGL. Immediately following this silty zone, is a silty, fine to predominantly coarse grained sand to a depth of 37-feet BGL. From 37-feet to 75-feet BGL a gravelly, silty, sand was documented by RESNA personnel. 3.2 Hydrogeology During the site assessment, RESNA installed three (3) groundwater monitoring wells and measurements conducted on August 2, 1991 indicate an average depth to groundwater at approximately 58.6-feet below grade. The groundwater flow direction was calculated by RESNA to be N20-E with an approxim-te gradient of 0.5-feet per mile. 4.0 WORK PLAN 4.1 Abandon Monitorin~ Well MW-3 Prior to commencing excavation procedures monitoring well MW-3 will be first abandoned by removing the traffic box and cutting approximately one (1) foot offthe top of casing, such that the exposed casing will be at least one foot below grade level. The well casing will then be filled with a sand cement'slurry to surface grade. The total well depth is 73-feet BGL and an unconfined water bearing zone is located at approximately 58-feet BGL. The well abandonment permit is presented in Appendix B. Personal communication with Ms. Jane Warren (KCEHD) indicates that this is an acceptable well abandonment method for the subject site. The well is presently within the proposed limits of the excavation. 4~2 Extent of Hydrocarbon Migration The RESNA site assessment report indicates the following depths of diesel impacted soil at various locations, beginning with the maximum depth: 35-feet BGL at Dispenser 1, 25-feet BGL at Dispenser 2, 15-BGL at Dispenser 3, 8-feet at Dispenser 6, and 8-feet BGL at monitoring well MW-3. AEC anticipates excavating a total of 1,600 cubic yards of diesel impacted soil from the dispenser area of the subject site. The soil will be excavated from the vicinity of the following soil borings installed by I~ESNA in October 1991: NB-l, NB-2, NB-3, NB-6, and MW-3. 4.3 l~tion Methods An excavator or grade-all will be used to excavate the diesel impacted soil to a m~ximum depth Pfojca: AFE' ~¥-1~ 4 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 · BAKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 Excavation Work Plan Advanced gnviron-~ental Concepta, Inc. of appro~imstely 40-feet B(]L. Actual excavation dimensions will be determined in the field based on soil 8croonin~ cr/teria and consultation with the KCEHD inspector. A small excavation, independent of the primary excavation will be made in the vicinity of Dispenser 6. The expected dimensions will be 8 by 8-feet, by 8-feet deep. Previous laboratory results' indicate 3,600 ppm .TPH-d at 5-feet BGL and ND at 10-feet BGL in the vicinity of Dispenser 6. For aeration purposes, the stockpile of diesel impacted soil will be an estimated 240-feet long, 120- feet wide, and l.~feet deep (1,600 cubic yards). It will be placed on the asphalt surface located at the southern end of the site. All soil removed from the former dispenser area will be monitored for hydrocarbons and volatile organic compounds (VOC's) during the excavation operations to ensure proper segregation of the impacted and clean soil. Air monitoring will be conducted at the excavation using a TIpT~II Photoionization Detector (PID), manufactured by Photevac, Inc. 4.4 ,~nm?linE Methods Upon satisfactory excavation of the diesel impacted soil, sampling will be conducted in accordance with the guidelines presented in hnndbooks UT-30 and UT-50 (KCEHD). The excavator or grade-all will retrieve representative samples of native soil at 10 foot intervals from the four (4) sides of the pit near the floor level. Another sample will be collected from the excavation floor as per KCEHD guidelines. The excavator will bring each soil ~nrnple to the surface for collection. Approximately 10 composite soil ~rnples will be collected from the stockpile no more than three (3) days following the excavation to determine initial hydrocarbon concentrations. One (1) sample will be collected from 10 quadrants, each of which will be approgimntely 48-feet long, by 60-feet wide, by 1.5-feet deep (160 cubic yards) (~mre 3). Under AEC supervision, Whitten Excavation will disc the diesel impacted stockpile once a week to enhance the aeration process. After eight (8) weeks of discing and aerating, the sampling program described in the previous paragraph will be repeated to determine the degradation rate of the diesel range hydrocarbons. This process will again be repeated in another eight (8) weeks, at which time AEC expects the hydrocarbons concentrations to have dropped to levels satisfactory for use as bacld~l! for the existing excavation. The following sample collection procedure will be used: 1. A qu,lified AEC representative, wearing clean latex gloves, will tap a 1 1/2-inch diameter by 6-inch long brass sleeve into an undisturbed portion of the soil; 2. The brass sleeve will be sealed with teflon tape, plastic end caps, and duct tape after ensuring that no head space in present; 3. The brass sleeve will then be labelled,, placed in a sealable plastic bag, and stored in a cooler with chilled blue ice; Pmjec~ AFC ~1V-~0~2 5 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 ' · BAKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 ~ .~ ~,~vafion Work plan .Advam~l lZm~ironm~ntal ~n~ ~ 4. ~ ~fi ~mpl~ ~be ~ on a Ch~-of-C~y d~ment~ e~ ~mple ~ ~d ~ceab~ 5. The so~ ~ples ~ ~en be de~va~ ~ a S~ Ce~ ~bomW~ for ~ of ~e re~e~d p~e~; 6. ~ so~ ~ples ~ be an~l~ed for ~H-d by ~A m~ ~50 (GCC) ~d for vo~e ~omfi~ (B~) by EPA m~ 8020. ~n~l~ ~ be pedom~ by a Cnlifo~ Ceded ~bomW~; 4.5 Bo~elrfill and Compaction Upon laboratory confirmation that the diesel impacted soft has s~fficienfly aerated, the excavation will be bacldilled and compacted with the remediated soil by Whitten Excavation. The clean stockpiled soil will also be returned to the excavation. Whitten excavation was contracted by Mainland Pacific Development Company to provide the earth moving equipment and labor pertaining to the excavation, stockpiling, and weekly discing of the impacted soil, as well as the baelrfill and compaction of the excavation following remediation. ~ac ~v-t~ 6 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. /*206 * 13AKERSFIELD. CA93313 805/831-1646 · FAX 805/831-1771 Soft Excavation Work Plan Advanced Environmental Concepts, Inc. 5.0 REMARKS/SIGNATURES This work plan represents AEC's professional opinions. These opinions are based on currently available data and were arrived at in accordance with accepted hydrogeologic and environmental engineering practices. No other warranty, expressed or implied, is given. This project is based upon aerating the diesel impacted soil for 16-weeks or less. If hydrocarbon levels acceptable for use as back~fl material are not achieved in at least 16-weeks, additional discing and sampling will be recommended to the client. This work plan has been prepared by: Advanced Environmental Concepts, Inc. Christian R. Bellue Engineer-in-Training #XEO72451 This work plan has been technically reviewed by: Joel S. Pomerene C~for~a Re~stered Ge01o~st t4724 ~ .,,k ~ ' Proj~ A~c ~v-lo22 7 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 · BAKERSFIELD. CA93313 805/831-1646 · FAX 805/831-1771 =- '-"'0 -- ®. -.o · .... ' :" ' · :' '0 : .- . .. -.'/. . :.,~. .',:::' .. · . o~ _ :O :10 · "'-:':- '~' '" ' .... ~.. ~ .-: -?.:' ' . . :.. .:/':=:,.' . ...-...:. ,-' , .- 0 1 ~ P~~P~~ ~ lin-ffiff : .. ,. -. -,.... , : .'. ,. · . . . ,. ...~: :' '..'~,. :'..: :,',~).:'~ ,~.?::'.'..-. :::...-.". '~ .. ' ~..,.o....,.= =o.c..,, ~. n n~:' :" FIGURE / ..o..~- Mainland aciflc.D velo mnt cOm'~a · . - ~ Big ~.~,~,,~. c~ ,=, Former Valley Tmc~'StoD . ,.= . .. ';:?: ..'.. -. 'MONITORING WELL APPL~TION ENVIRONMENTAL HEALTH SERVICES DEPARTMENT HAZARDOUS MATERIALS MANAGEMENT PROGRAM Application Date ~2700 "M" STREET, SUITE 300' No. of Wells BAKERSFIELD, CA 93301 PTO No. MW bio. is) Circle One: CONSTRUCT MODIFY ~ "~F6r Office Use Only A. FACILITY INFORMATION Project Contact: Chris Bellue phOne: (805) 831-1646 T/R/S~ 29S/27E/23 Advanced Environmental Concepts, Inc. .. Facility Name: Big Valley Truck StopFacility Phone: N/A Cross Street: Hwy. 58 Address: 3115 Pierce Rd. City: Bakersfield. CA Zip: 93308 Owner: Mainland Pacific Development Companv Phone: (213) 821-9229 Address: 12536 Admiral Ave. City:. Los An~,olo.~. CA Zip: 9Q9~ B. CONTRACTOR INFORMATION Environmental Contractor: Advanced Environmental Concepts, Inc. Phone: (805) 831-1646 Address:.440© Ashe Rd. #206 City: Bakersfield~ GA Zip: 93313 License No. 'and Type: W.G No.: Drilling Contractor:. N/A , Phone: Address: City: Zip: License No. and Type: W,C. No.: C. ENVIRONMENTAL INFORMATION Depth to Groundwater: 58.50' Below Grade Verified By: Resna Report 10/17/91 Lithology Log Reviewed By:' Resna Registration No.: D. PROJECT INFORMATION ffPr0posed Start Date: 4/15/92 Proposed Completion Date: /4/15/92 Drilling Method: N/A Type of Well (Circle One): ~ Vadose Zone Test Hole Si~ature: Title: Eng±neer Date: a/8/92 HM123 -..~' ENViRONMENTAL CONCEPTS WITH DESIGN IN MIND* 4400 ASHE ROAD. #206 · ' BAKERSFIELD. CA 93313 'e05/e~1-1.646- & · .FAX.a05183.1.~'i.~7.'1:.;,_~?.~-;?:,:.-.'..;. ~.' ;?:~!~.!"i~'; ':; '~. ? ,.0X~ ]~xOIYs~on WoI~ pbm AdVRllced ]~ironmellt]d. Collco~ ID.C. Health & Safety Plan .Mainland l~fie Development Company Former Big Valley Truck ~ 3115 Pierce Rosd Introduction- A Site Safety Plan (SSP) has been designed to address safety provisions needed during the site soil assessment/remediation. It's purpose is to provide established procedures to protect aH on-sito personnel from direct skin contact, inhalation, or ingestion of potentially hazardous materials that may be encountered at the site. The SSP establishes personnel responsibilities, personal protective equipment standards, decontamination procedures and emergency action Advanced Environmental Concepts, Inc. seeks to enter the property described ab°ve for the purpose of conducting a site assessment, consisting of backhoe excavation and sampling, to remove hydrocarbon impacted soil. Soil samples will be collected following the complete excavation of affected soil. All possible efforts will be made to collect undisturbed samples. Each sample to be chemically nnnlyzed will be collected in a brass sleeve, capped with lined plastic lids, sealed with tape and placed on ice in a cooler immediately. All Chnin- of-Custody protocol will be followed. Excavation equipment will be brought to the site and operated by: Whitten Excavation Post Office Box 70488 Bakersfield, CA 93387 (805) 631-8455 This SSP describes means for protecting all on-site personnel from deleterious cont~miuation of personal injury while conducting on-site activities. As described below, we will strive to meet all requirements promulgated by the California Department of Health Services. Respongihilities of Key Personnel_' All personnel on-site will have assigned responsibilities. Mr. Christian R. Bellue will serve as Project Manager and on-site Engineer. He will also serve as Site Safety Officer (SSO). As SSO, Mr. Bellue will assure that on-site personnel have received a copy of the SSP. Personnel win be required to document their full understanding of the SSP before admh~sion to the site. Compliance with the SSP will be monitored at all times by the SSO. Appropriate personal protective equipment, listed below, will be available and utilized by all on-site personnel. Prior to beginning work, the SSO will conduct a training session to assure that all are aware of safe work practices. In the training session, personnel will be made aware of h~.ards at the site and will ufili~.e Material Safety Data Sheets for information on compounds to be encountered. Pmjcct: ~ ~lV-lO22 1 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 · E~AKERSFIELD, CA93313 805/831-1646 * FAXS05/831-1771 ~ ,~fl gxcaution Work ~ Advanced ]~nmd~ ~d:)llCep~Inc. Mr. Bellue will also be responsible for keeping field notes, collecting and s~mring samples, and assuring sample integrity by adherence to Chain-of-Custody protocol. AH on-site employees will take reasonable precautions to avoid unforeseen bnT~rds. After documenting their understn~ding of the SSP, each on-site employee will be responsible for strict adherence to aH points contzined herein. Any deviation observed will be reported to the SSO and corrected. On-site employees are held responsible to perform only those tasks for which they believe they are qunlified. Provisions of this SSP are mnndatory and personnel ammciated with on-site activities will adhere strictly hereto. Job Hazard Annlyse~ Hnzards likely to be encountered on-site include those commonly encountered when operating any mechanical equipment, such as the danger of fnlliug objects or moving machinery. Simple precautions will reduce or eliminate risks associated with operating such equipment. An excavation contractor has been employed to deliver and operate aH excavating equipment. Qunlifled personnel only wiH have any contact with this equipmenL AH on-site personnel, ineluding the excavation contractor and his employees, are required to wear h~rd hats when in close pro=/mlty to excavating equipment. Latex sampling gloves will be worn by persons collecting or h_nndling samples to prevent exposure to eontnminants. Gloves wfl] be changed between samples and used ones discarded, to avoid crons-contnmination. Proper respiratory equipment will be worn if vapor contnmlnntion levels on-site exceed netion levels as determined using a Photeionization Detector (PID). Action levels requiring respiratory apparatus will be 5-ppm, in the breathing space. Furthermore, no on-site, smelting, open flame or sparks will be permitted in order to prevent accidental ignition. ~ Assessment S, mmnty: Exposure to chemicals anticipated on-site include gasoline, diesel, and benzene, toluene, and xylene (BTX). These chemicals represent a hnTard because they are moderately to extremely toxic and most are highly flammable. Threshold Limit Values (TLV's), Short Term Exposure Limits (ST~.I.'s) and Toxicity levels (LDS0, oral- rat), an in rog/kg (ppm), are listed belovc. Compound TLV STEL Toxicity Gasoline 200 300 --- Diesel 50 75 -- Benzene 10 25 4894 Toluene 100 150 5000 Xylene 100 150 4300 Benzene is considered an extreme cancer hazard. Applicable MSDS forms are attached. Expomtre Monitorin~ Pins-_ Air monitoring will be conducted during excavation procedures using a T~P?~II Photoionlzntion Detector Pmje~: ' AEC 91V-1022, 2 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #200 ' 13AKERSFIELD. CA93313 805/831-1646 - FAX 805/831-1771 ~ ]~rf~3nltion Work phn Advanced P. nvironmenlnl Concepts, Inc, (PID) equipped with a 10.6eV lamp, manufactured by Photovac, Inc. The PID will be calibrated to 50 ppm ho.~Ane. These air monitori~ procedures will be carried out in accordance with the provisions listed in Rule 1166 of the South Coast Air Quality MAnagement District (SCAQMD). Volatile emissions are not anticipated but will nevertheless be monitored. perS°n-i Protective Eq~dpment: When handling samples, the on-site Geologist will wear latex gloves. Hard hats will be worn by all personnel on-site when in proximity of excavation eqnipment. Work Zones and Security Measure~ Access to the site will be restricted to authorized personnel. A set of cones, placards or wide yellow tape, surrounding the site, will define the perimeter, if needed. The Project M~n~ger will be responsible for site security. Decont~min-tion Me~n'es: Avoidance of cont~miuation whenever possible is the best method for protection. Common sense dictates that on-site personnel avoid sitting, leaning or placing equipment on possible contsmlnated soil. All personnel win be advised to wash their hands, neck and face with soap and water before tsking a break~ or leaving the site. Excavation and sampling eqni]pment used will be decont~minsted by steam-cleaning. Sampling eqnipment will be decontaminated before each ~mple collection. General Safe Work Pr~,~ice~ On-site personnel will be briefed each day in "tailgate" meetings as to the day's goals and equipment to be used. Anticipated contsminants and emergency procedures will be reviewed. Appropriate personal protective equipment will be ]put on and verified correct by SSO, including respirator fit. Excavation and sampling eqtdpment will be steam-cleaned before being brought on-site. The on-site Geologist will oversee operations and log the excavation strat~ The Sample Coordinator will assure that proper protocol is used at all times in collecting and handling samples. The SSO will conduct a pre-site training session which will include all points of MSDS forms, cont~miuant properties, warning signs, he~dth hazard data, risk from exposure and emergency first aid. All chemicals are..to be covered and the SSO will assure that everyone fully understands site hazards. Projec~ AFdC ~lV-1Q22 3 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND * 4400 ASHE ROAD. #206 · BAKERSFIELD. CA 93313 805/831-1646 · FAX 805/831-1771 Medical ~urveill-q_~e Acc°r&ing to CFR 29, 1910.120, Paragraph (f), employees who wear respirators thirty (30) days or more during one (1) year or who have been exposed to hazardous substances or health hazards above established permissible exposure limits are required to be monitored medically. All site personnel will be required to have had a complete chemical physical within the past year. Documentation will be kept on personnel exposed to contaminant hazards on the job site according to OSHA regulations. These will include documentation that employees have received training on the SSP, respiratory protection, MSDS forms and all emergency procedures. These will be reviewed during the pre- site training meeting. Exposure records on each job will be kept for thirty (30) years to meet requirements. Included will be names and social Security numbers of employees, medical evaluations, on-the-job logs from entry to exit, first aid administered, visits on-site by outside persons and personal air monitoring records. ContinFency Plan~ In the event of an accident, injury, or other emergency, the Project Director, Senior Project Manager, or other person, will notify the appropriate government agencies or individuals aa follows: Kern County Environmental Health Department 2700 M Street, Suite 300 Bakersfield, CA 93301 (805) 861-3636 Police, Fire or Ambulance Emergency 9-1-1 Nearest Emergency Hospital Mercy Hospital 2115 Truxtun Avenue Bakersfield, CA 93301 (805) 327-3371 Project: AEC 91¥-1n~_ 4 · ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND · 4400 ASHE ROAD. #206 · 13AKERSFIELD. CA93313 805/831'1646 · FAX 805/831-1771