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Home My WebLink AboutUNDERGROUND TANK 1989 - 1990 (2) I~~~ '<' ~Ha~ 28 03 11:08a 7 A.'T AR,I WE ST S TAR (5. ~77-0106 p. 1 IIß!I_ '-ßIII¡ $-111--·' ~-- '.1 1l1ii~ ..;1: ')}";' ~ \ __. -- .--.-.. -~.. .... -. ----~. ENVIRONMENTAL INC. 4688 W. Jennifer, Suite 101, Fresno, CA 93722 (559) 277-9378 I Fax (559) 277-0106 license No. 605142 A-Haz EHD Test Schedule Confirmation Today's Date:S"28..03 Attn:AREAINSPECTOR Company:BAKERSFIELD FIRE DEPT. Fax #:_326-0576 From: PHILLIP MENDRIN This Notice is to Confirm your Appointment: With:W5E Site Name:QUICK STUFF #7723 Address: 10 UNION AVE City, State, & Zip Code: BAKERSFIELD,CA On: 6-17"03 @ 8:30 AM Tests to be Performed:ANN. MONITORING CERTIFICATION Please call our office if there are anv chanGes in the information above, if vou exDect to be delaved, or if YOU can not make your aDDOintment. Thank you, West Star Environmental Inc. 1 BAKERSFIELD . BAY AREA . FRESNO. LOS ANGELES . MODESTO . SACRAMENTO ..-..----. ..-- . .-..-- . -.,-.--...--- -..----. ....---.. ,- KRAZAN & ASSOCJA~ES, lNC. Construction Testing and Inspection Geotechnical Investigations Environmental Engineering Laboratory Solis Testing Monitoring Wells August 8, 1989 Project No. E89-156 Chevron U.S.A. Inc. Attn: Mr. Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Additional Soil Sampling of Excavated Soils Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Mr. Sampson: In accordance with your authorization, we have completed the additional sampling of the excavated stockpiled soil and subsequent chemical analysis at the above referenced project site:' The additional sample was collected at a greater depth at the request of Ms. Amy Green and Ms. Torunda Crumpler of the Kern County Environmental Health Department. The original composite soil sample was collected at a depth of 6 to 18 inches from the surface of the stockpile and showed no detectable concentration of benzene, toluene, ethylbenzene, xylenes, or total volatile hydrocarbons to be present in the sample. The concentration or 20 ppm total lead was believed to be associated with background levels. According to Kern County personnel, the depth of the sample was thought to be an insufficient depth to sample the stockpile in light of the volatilization of the petroleum hydrocarbons present from the surface of the stockpile. The stockpile originated from the soil that was excavated in the vicinity of the west dispenser island and was covered by visquene following excavation. The additional sample was obtained from the stockpile on August 3, 1989. The sample was obtained by Mr. Michael Batten, our environmental technician. The sample was obtained from a location specified by Ms. Green and Ms. Crumpler of Kern County. The sample was obtained from the approximate center of the pile at a depth of 3 1/2 feet from the surface of the pile. The dimensions of the stockpile were approximately 15 x 10 x 6 feet. The sample was collected in a stainless steel tube. Aluminum foil was Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291·7337 Bakersfield (805) 393-2343 0 California (800) 233-5050 0 FAX (209) 291-5010 e . Project No. E89-156 Page No. 2 placed over each end of the tube and then the tube was capped on each end with tight fitting plastic caps. The sample was then labeled and placed in a cooler chest which contained synthetic ice and transported under chain of custody protocol to a state approved laboratory. The sample was analyzed for the presence and concentration of benzene, toluene, xylene, ethylbenzene, and total volatile hydrocarbons by EP A 8020 GC/PID and 8015(M) GC/FID and total lead by EPA Method 7421. The sample was obtained in order to establish the disposal criteria necessary for the excavated soil. The tabulated results of the chemical analysis performed on the additional sample collected may be found in the following table. TABLE I Concentration of Petroleum Constituents in Soils Additional Soil Sam1;:>ling of Excavated Soils Chevron Station #9-1554 10 Union Avenue Bakersfield. California August 3, 1989 (All Concentrations in parts per million) Sample No. Ethyl- Total Benzene Toluene benzene Xylenes TVH Lead ND 0.02 ND ND ND 27 Composi te C TVH = Total Volatile Hydrocarbons by EPA Method 80l5M None detected at the detection limits noted on the attached analytical reports. ND = Based on the results of the original composite soil sample and the additional sample of the excavated soil, it is recommended that options of disposal at a Class II orY6lass III landfilled be explored. The concentration of 27 ppm total lead is anticipated to be associated with background levels as the previous background samples obtained from the site revealed concentrations up to 53 ppm total lead. KRAZAN & ASSOCIATES, INC. e projeAo. E89-156 Page No. 3 If there are any questions or we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. Respectfully submitted, KRAZAN & ASSOCIATED, INC. ~{~ C. 0~ Cynthia C. Wagner Enviironmental Specialist Q~ ... Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 CCW /DA/le 3c herewith Ic Kern County Environmental Health Department Attn: Ms. Turonda Crumpler Ic Kern County Environmental Health Department Attn: Ms. Amy Green KRAZAN & ASSOCIATES, INC. e e ..' BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892427 Sample Type Soil Sample Description 1950 hrs. Report Date 8/7/89 Date Sampled 8/3/89 Date Received 8/4/89 Composite C Date Analysis Complete 8/4/89 Soil Analyses for Total Lead Compound Results Detection (mg/kg) Limit (DLR) Total Lead ................ 27 1.0 Method: EPA-7421 ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting R070489 ;/ / // /.' i I , . // ,/ .,~... . . __ .-.-r-#.. Inorganics Supervisor '..' . e ~. --.---,..............,..._._----. . . - .. Ow '.'".. .' '. -- , ..,. BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892427 Sample Type Soil Sample Description 1950 hrs. Composite C Report Date 8/7/89 Date Sampled 8/3/89 Date Received 8/4/89 Date Analysis Complete 8/7/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mglkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.02 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DLR-Detection Limit For the Purposes of Reporting ar?~ QA/Ác Supe isor R070489 , KHAZAN & ASSOCIATES Cnain of lJUstody Record .- ¡¡ I ___~ __~nJ'" "1'"'' : i- rrïl :11 I 1 74 /1 -" () ~J -.../-r '~711 - ----- ---- DATE ,TOTAL NUMBER .J OF CONTAINERS M~P OF SHIPMENT 7~¿ f:¿~- SPECIAL SHIPMENTÆt"ANDUNG OR STORAGE REQUIREMENTS fnIJJ,onment., f¡old 'allin\J ana S.mpling SpecM'Il.d Fu.' s..~. 5'udl.. . hbor.'ory Sol'. T..llng SOU. fnp'n..,.'nv Geo,ecMlc.llnlJ..III1.tJon. - DATE-ii:ytr PAGE PARAMET~S ~ ADDRESS KRAZAN & ASSOCIATES, INC. ç 3860 NORTH WINERY r;: FRESNO, CALIFORNIA 93726 I (209) 291,7337 f! .If / J ¿; en en 4J en ~ ~ ~~aj,<¡~kSISIGNAruRE?J ø~¿;ß~;; __un È ~c ~ ~ ~~ a~t ~ ~ ; ! ~ i § I p;;~¡öd~~:'~~_=-;'J ði A~~/.e~ª,<,~==-_ ~ ! i ~ ~ U Ii _, i ~ h f ~ ~ i < ~ ; _~AMP~E ~~-- _r;AT~_ ~~~1'- -Z;~- L~C-=~_?¿_~=_ =~- -- ~._- ~___" X_ __ __ ---~- __ _ --~ /Ù;/¿1 ,:[ø- ~_IJ _ ______ __ -- ~___=--=_~~=~~ j¿i~-~~___6~_.__ _________ ______ _ ~__ ____ _____ ___ --e- __ -- OTHER --- -_._,----~ ---. --- ---1-- -- -- ----,- --- --- --- ----------- --~---_.- ~ ---- .---.---"------- .----- ._-~-~ ----- - ------ -1--- ----- -----1- - ---- - ~f-- --- - u. __ _._.__._.___~__ ______ _._.~_ __n _______ _~__________m_._·__ ---- ------- -- -- ---- - -- --- -- --- - ----..-.- __, ...___._.__ __.n__ ._.___ __,_ ._.._ . On_. .._____ 0___ ____. -_._~-- ---~_. ----.----- ---- ---- ------ ------f------- ----- --- ----- ------------- .._____ m. .___ ,._. ,______________ ~-- --- ---------- ----- --- --- - - -- - -- --1- -- - ----- ---------- ----------. .------- ------~ --.-------- --------- --- -- --- --.........- - - - -~ ------_.~-- --_._~ ----- .-------------------- -- ---~- --- -- -----_. ----_.-. ---------.--.----------- -~--- -- --- --- ----- ------ -- ----~---_._---.- ---- ---- ----- -- ~---- -- --- __._____..__ .._'n _,_.____.__ _._ __....._______~____..__.__n__ ._~_ _______ ..___ __ __ _u~_ ___ ,__. --- REl~;~;;j-7~~.--.:;_~~IR/,E~r.I'a~tu--re- ,~_~~~2¡, Slgna~re . _ // . Slgtfrtr_ lure 16 I rh?i LK J /¿¿¡#t'i fdjt4: TIME _1Íl1&Lt_!1JJ1,:rlhT'MË--_Is.I:J.,<."J,-r A, fVb'h~E --- JP;:;d;~me pri1< ~ame Printed Name / C"" ._, __A______ J-ltV ___ ___f",~__ Z2CO f---({þjf?lf¡jJ /'tL) I Com?any _ ___ co~~~~....J_____ Co~~any RELINQUISHED BY DATE RECEIVED BY DATE RELINQUISHED BY DATE - ---- - --- -- ---- RECEIVED BY Signature TIME Printed Name -- Company RECEIVED BY (laboratory) DATE .::;/!28It 0·1/ Signature . (~~ " --.J1;--- ~-r:Iþ;.~{~ -.:..~ ¿:~-rIM~ Pnnted Name, . ./ / a]/ ) / i..)' .!~/ //c..-- L/ik{/ éòmpany . -~----- --.~---'------ ---~---~- Signature Signature Signature ._----_._._--~---- TIME 1------- TIME TIME -~- --------- ------~----------- Printed Name Printed Name Printed Name ---~-_. Con-.pany . _________ ~~p_anL_________ _____ Company I OF I (/) a: w z « I- z C> (J u.. C> a: w ro ::¡;; :::¡ z OBSERVATIONSI COMMENTS , , e , - - I I " ,- ;¡ \:.:'., ~' >j I'.'~,'. \ '''\' .1 " .. 2J-/ ivL -fÄ- ,- -. ulJ 1 KRAZAN-& ASSOCIITES, IN C. Construction Testing and Inspection Geotechnical Investigations Environmental Engineering Laboratory Soil, Testing Monitoring Wells August 8, 1989 Project No. E89-156 Chevron U.S.A. Inc. Attn: Mr. Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Additional Soil Sampling of Excavated Soils Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Mr. Sampson: In accordance with your authorization, we have completed the additional sampling of the excavated stockpiled soil and subsequent chemical analysis at the above referenced project site. The additional sample was collected at a greater depth at the request of Ms. Amy Green and Ms. Torunda Crumpler of the Kern County Environmental Health Department. The original composite soil sample was collected at a depth of 6 to 18 inches from the surface of the stockpile and showed no detectable concentration of benzene, toluene, ethylbenzene, xylenes, or total volatile hydrocarbons to be present in the sample. The concentration of 20 ppm total lead was believed to be associated with background levels. According to Kern County personnel, the depth of the sample was thought to be an insufficient depth to sample the stockpile in light of the volatilization of the petroleum hydrocarbons present from the surface of the stockpile. The stockpile originated from the soil that was excavated in the vicinity of the west dispenser island and was covered by visquene following excavation. The additional sample was obtained from the stockpile on August 3, 1989. The sample was obtained by Mr. Michael Batten, our environmental technician. The sample was obtained from a location specified by Ms. Green and Ms. Crumpler of Kern County. The sample was obtained from the approximate center of the pile at a depth of 3 1/2 feet from the surface of the pile. The dimensions of the stockpile were approximately 15 x 10 x 6 feet. The sample was collected in a stainless steel tube. Aluminum foil was Main Office: Fresno/Clovis . 3860 N. Winery · Fresno, California 93726 · (209) 291·7337 Bakersfield (805) 393·2343 0 California (800) 233·5050 0 FAX (209) 291-5010 e e ., Project No. E89-156 Page No. 2 placed over each end of the tube and then the tube was capped on each end with tight fitting plastic caps. The sample was then labeled and placed in a cooler chest which contained synthetic ice and transported under chain of custody protocol to a state approved laboratory. The sample was analyzed for the presence and concentration of benzene, toluene, xylene, ethylbenzene, and total volatile hydrocarbons by EPA 8020 GC/PID and 8015(M) GC/FID and total lead by EPA Method 7421. The sample was obtained in order to establish the disposal criteria necessary for the excavated soil. The tabulated results of the chemical analysis performed on the additional sample collected may be found in the following table. TABLE I Concentration of Petroleum Constituents in Soils Additional Soil Sampling of Excavated Soils Chevron Station #9-1554 10 Union Avenue Bakersfield. California August 3, 1989 (All Concentrations in parts per million) Sample No. Ethyl- Total Benzene Toluene benzene Xylenes TVH Lead ND 0.02 ND ND ND 27 Composite C TVH = Total Volatile Hydrocarbons by EPA Method 8015M None detected at the detection limits noted on the attached analytical reports. ND = Based on the results of the original composite soil sample and the additional sample of the excavated soil, it is recommended that options of disposal at a Class II or Class III landfilled be explored. The concentration of 27 ppm total lead is anticipated to be associated with background levels as the previous background samples obtained from the site revealed concentrations up to 53 ppm total lead. KRAZAN & ASSOCIATES, INC. e proje' N~. E89-156 . Page No. 3 If there are any questions or we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. Respectfully submitted, KRAZAN & ASSOCIATED, INC. G.rn{~ c. 0~ Cynthia C. Wagner Enviironmental Specialist Q~~~, Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 CCW /DA/lc 3c herewith Ic Kern County Environmental Health Department Attn: Ms. Turonda Crumpler Ic Kern County Environmental Health Department Attn: Ms. Amy Green KRAZAN & ASSOCIATES, INC. e ._,.--;:'---~.~ ,.. -::-~ .-::- . . . "'c·.':.- e' ". .... . . '. .~. '. .' ~ " . . BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892427 Report Date 8/7/89 Sample Type Soil Sample Description 1950 hrs. Composite C Date Sampled 8/3/89 Date Received 8/4/89 Date Analysis Complete 8/4/89 Soil Analyses for Total Lead " Compound Results Detection (mgjkg) Limit (DLR) Total Lead ................ 27 1.0 Method: EPA- 7421 ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting R070489 '/ / 11/ / ..' / ..~ Inorganics Supervisor , . . '.. , . _... t.' ··e···'·· -,,'.' . ~ _~ t " ',. 'e'~" . -, . '. . '- , !¡¡;:; BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485~7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892427 Sample Type Soil Sample Description 1950 hrs. Report Date 8/7/89 Date Sampled 8/3/89 Date Received 8/4/89 Composite C Date Analysis Complete 8/7/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.02 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting ~~ QAh C Supe isor R070489 I KHAZAN & I ,. Envjronment.' fi.ld T ..linp and S.mpfin$ $pe~.II'~ F~.' S..E»ge ~Iud;.. . ~~~~t~ ~~I~ J~i'~n9 ..._, __.__ SoI'~ ~nv'n""nv _ _, _ _ ___ __ _ GeolKhnlul In~..tlg.'Jon. ~ ~ Cnain of lJUstody Record DATE 0;/;-1 I / PARAMET~S -'-- ADDRESS KRAZAN & ASSOCIATES, INC. - 5_ 3860 NORTH WINERY f-:-- FRESNO, CALIFORNIA 93726 I (209) 291,7337 /P vIi 1Ft '!1 U) '-u U) U) PROJECT 1: ð (- . :;> oc; =>' :2 .-«-:2 ~ SAMPLERS {SIGNATuRE)p/ ~¿; /;'.A J ~ ~ ~ ~ ~ ¡ 9; iQ; ~ ~ p;intedNam-e-n----,---~JCC!ß,/--~_ _ ~~--- ~ ~~ ~ ~ ~; ~¡ ¡ ~~-~~ ~ __ ______:.L!!.~ti (_{)t-tJ¿j i¡ ~ g::g ~ 25 8 i '1 §: /~ §: ~ §: ~ ~. SAMPLE NO r-JATE _ ~IMJ- 7=5__ATIO_¿____, _ __ __ 1_ _____~~~ __~_ ~ ;' ,1)41.1- _t¡[___ -~'7~-~~ r-- 16. if _____ .J!Ç!~ n~~4__f!___ __ J __________þd,j --~--L-------------h-t------- __________ ASSOCIATES --..-,------- - --..- . - ". .--- - -- m --- .. --_.'-- - - .u ___~. ------------ ----1---- -------- ----- - -._----- - - -----" -------------------~ --. -- --- -------.-- --- --_.~--- --.----- .---------...--.- --~~----I-t----- --- --- ---- ---- -.--- .----.- -~-- -- .__.~ ---. -- --- -.-- o REljrHEOßi-~¡;^'¡-R¡~ffjf~''l'P;;.;ZVcr--- f4-RE_L~Æ_--- - ~~_ ~r~~y- -ÅECE~Õ-BY- - L-- --- ~"~Ai4!/J eLJt!fJ/IJ¥L l~ æ.fr~ 1'1 - JAre . Slgf(f.,fre /:1nature Signature ___~.__~~/.¡¿_I/it.Ç-{¿. rïME--' -Æbu+ tI.I)1~Lb~TlME --_ r.:1-?:-'r:f_ A. l1(br~LJ~ME ...! Pptp.d Na_me Prir¡tej! Name Printed Name / ¡rV")l .-, Printed Name /1/ 2.L?V K ,,,,"VÎ't k- . L /K() I I~C::~~~-_-mn----n, --èompafvÇ",~------- I/P-^J co~IJ?!f~-- / \} ~i::::..'''D~'~-~DÂiE :i::;;~;~'~~ _~~"ôAOf -:i::~::"HED:_ ..__ D'Of ----~---- ----._- ---- ______~ TIME _____,______ TIME _______ TIME Printed Name Printed Name Printed Name Company RECEIVED BY (Iaboralory) 1~/~ __Q//. Signatu!e . (¡'/. ....;/¿j -!1:r /....-J . ,~/( 1:; é 1lME-- Printed Name " /a}/ 7 '¿£ . )i(' u:W r) /J ~Om~¡Hl~_______ ____ _~~;~_=~. ~~ / ~~~_. . _ -~(f-/I' ._______. ____._...__..___ ______ .__ .._ n..·_ ._. -...-----. ---- ._~--. ------- .- ---- -.- -------,-- ----.- -----1---1--- "-1-- ----- -.--- .-.--- _._~---- -~ .----. .--- ~ ----..------ .---------. Con',pany --~_._------ Company ----.-'- - ._----._..__._._._--_._--~--- ---.--.. -.-.--------- n__~__ __ PAGE I OF I OTHER <f) a: UJ :z -' 4: 0 t- :2 :z OBSERVATIONSI w U) 0 I :2 U Q. « COMMENTS 0 a:: ::E ~ a:: 0 ~ => a:: w u. >- 0 a: I I- ~ I- U. 0 U) e 0 UJ '-' ca « U) ~ a:: I- 8 >< CD ~ ~ :2 g a:: ::I w a:: I :::> I Q. '-' a Q. I- '-' :z .. e --------- I , -- -~ 1_ - - n____ -~ : t1Qor MI"',r I frïlL till 1 ?¿T h _. ._~-,- .--- ----, -----.---:..::I=-r- ----- - , ()}f--·=7 '--"' l -.- --- .-.---.. ----.- ------. -----1----- -.--.-- --.--- ----- -------- - ~, ' -·I-I--~ - . " .~, ] .' :,1 -,- DATE '..' :"" " TOTAL NUMBER OF CONTAINERS .J M~ OF SHIPMENT -- /~¿ f:¿u~- j TIME ~~ SPECIAL SHIPMENTIIfANDLING OR STORAGE REOUIREMENTS . ~:1.' : ¡ .. . ,- .,' -- " ~ '- .... ~ , -< '1 1 'I ! "·1 DATE 2L/ IvL .~, ,. ;, " ,\ K R A Z A N· & ASS 0 C I IT E S , IN C. Construction Testing and Inspection Geotechnical Investigations Environmental Engineering Laboratory Soils Testing Monitoring Wells August 1, 1989 Project No. E89-156 Chevron U.S.A. Inc. Attn: Mr. Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 R...· ..... . Composite Soil Sample Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Mr. Sampson: In accordance with your authorization, we have completed the sampling of the excavated stockpiled soil and subsequent chemical analysis at the above referenced project site. The stockpile originated from the soil that was excavated in the vicinity of the west dispenser island. One composite sample was obtained from the stockpile on July 26,1989. The sample was o:::-:ained by Hr. Michael Batten, our environmental technician. The composite sample consisted of randomly selected points at èeDths from 6 to 18 inches from the surface of the pile. The dimensions of the stockpile were approximately 15 x 10 x 6 feet, The sample was collected in a mason jar at random points throughout the pile. Aluminum foil was placed over the top of the jar and then the jar was capped with a tight fitting screw on lid. The sample was then ~abeled a~d placed in a cooler chest which contained synthetic ice and transDorted under chain of custody protocol to a state approved l¿boratory. The sample was analyzed for the presence and concentration of benzene, toluene, xylenes, ethylbenzene, and total volatile hydrocarbons by EPA 8020 GCPID and 8015(M) GCFID and total lead by EPA Method 7421. The sample was obtained in order to establish the disposal criteria required for the excavated soil. The tabulated results of the chemical analysis Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 _ _ California (800) 233-5050 I j FAX (209) 291-5010 e e Project No. E89-156 Page No. 2 performed on the sample collected may be found in the following table. TABLE I Concentration of Petroleum Constituents in Soils ComDosite Soil SamDlinq Chevron Station #9-1554 10 Union .~venue Bakersfield, California July 26, 1989 (All Concentrations in parts per million) Ethyl- Total SamDle No. Benzene Toluene benzene Xylenes TVH Lead Composite A ND ND ND. ND ND 20 TVH = Total Volatile Hydrocarbons by EPA Method 8015M None detected at the detection limits noted on the attached analyt~cal reports. ND = Based on the results of the composite soil sample, it is reco~~ended that options of disposal at a Class II or Class III landfilled be explored. The concentration of 20 ppm total lead is anticipated to be associated with background levels as the previous background sample obtained from the site revealed 53 ppm total lead. KRAZAN & ASSOCIATES, INC. e proj4lÞt No. E89-156 Page No. 3 If there are any questions or we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. CCW/DA/lc Respectfully submitted, KRAZAN & ASSOCIATED, INC. / ~ 1 I' (, ---- J ~ I ¡ . . {" z-.' C~~;·.·-IJ·_·..~.- ''',- , : . -,--. -.-. ", -- - '_ - \ ' \ I '-.# .; Cynthia C. Wagner Environmental Specialist ~~~~-- Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 3c herewith Ic Kern County Environmental Health Department Attn: Turonda Crumpler KRAZAN & ASSOCIATES, INC. e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street ~ Fresno, Caliíornia 93706 . Telephon~ (209) 485-8310 . Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/27/89 Sample Type Soil Sample Description 1235 hrs. ComDosite A Soil Analyses for Total Lead Compound Results Detection . (mgjkg) Limit . ( DLR) Total Lead . . . . . . . . . . . . . . . . 20 1.0 Method: EPA-71.21 ~D-None Detec:ej 8Dl-8elow Detection limit DLR-Detection Limit For the Purposes of Reporting :~;?J¿ê9 , /----J 'h' ;-4 .d:-/~' /,.' / . I .,::7_/?v/~ ___ QA;,'¡C SUPZ::f . // Inorganics Supervisor e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street . Fresno, Caliiornia 93706 . Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Composite A Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/28/89 Sample Type Soil Sample Description 1235 hrs. II Soil Analyses for BTXE and TVH II Compound Results Detection (mg/kg) Limit (DLR) Benzene . ND 0.02 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. Toluene .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene IsoT:1ers .. .. .. .. .. . ND 0.02 Total Volatile Hydrocar:Oons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected SDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting :<70489 /7 . /// // .. }-/ ¿;/¿: . ~ .--_/ QA/ic supe:r:v'ls¿:r v /' J ~/ 7{ h I { i\ /. ,\ ¡~ & A ~ ~ () (: I ,\ . I I ~ S CIIHrpllfT,,>nl,,¡ '11'/(11"'1"'9 ...nci SlIfI'l1ll/1f) Sp#'Cllflilf'tl 1./,./ Sppr"gf' Sluff!"S ~hCH'tOft· 5",/, , P~III" Soils lng¡nft~'¡ng a.o'øchnic..,lnvP5Iiplt(/Ofl5 1."-""_1 1// \' i ( . . - ' I \ - '-1 ADDRESS KRAZAN & ASSOCIATES, INC, 3860 NORTH WINEIW FRESNO. CALIFORNIA 93726 (209) 291·7337 -:} J>'" / /-¡" pnOJECT.. . t/:- ï -- ,j c' SAMPLERS (SIGNATUHEj /./'1 _/',/!' . ./:1 1/ ' /¡;~;~~ / /í:'-:Zt.l..- " //' /) J. . í / <_ /'''('/ {)¡-', ¿ t.", I, DATE \ TIME LOCATION I 1/ /(', .'< 'i ~5'-;/ ,/ /) -} 'J' c,f'~/V"¿; /f 1 ,t;> , "7 ¡ I Ii ii' j' c«) ~I,.,,¿ Ij Print(!c! Nal110. SAMPLE NO f- -- .~---~-- - '-------.-'- _ ---.- ...- - .-- - -.-.-----.---- - ___.___ _____ ._ - _n_ .. _.n . ____. ___ --..-.-.---.. RELlNOUISHED BY lJ~ ¿ ¡5.'~ IA~ y'¿ ,...-} --- .~!" tá f.J7' Signature . I I J,If,;/'/lc! !J¡?;:;"A TIME Pnnt.-,d r~m" /("'/121(11 r C;rnp~ny .. . rRËUNOÙISiÚ:D- BY- . DATE HECEIVED BY Signature - -.----- .---- v 1.,)-- Prll1lr:d N;tfllf~ Company f1ECEIVED BY DATE -- ~--- - ----- .-.--------- Signature Signature TIME - --------.----- Prinled Name Printed Nallle COmptlny Comp;my DATE TIME DATE TIME 'n ., ,., , , , ., -, ,,' L, '" , , '" " ., , , ., '" " : , Clldill ù'f ,-,u~loay Recora <n rc. UJ L_ , <t: '" ,- , , '" "" ") 0 ., ,- u ", (.J " U " rc " - CJ " , , c: ", If: " " n rc. '" '" ., 11- , ,,) 1.-) tLl , ., n n en " ., , " : ~- : " , 0) '" '" , , " " , , ,'- >\ I'AHAMETEHS ( " 1-... , (.'/ 'I) \.1 (/) :-~(: ~-~~ \-\- \I:~! ;,.- -'- -c. ;/ :-l~ ;j~ ~-;~ ~ - :~ :.-1 ~~. ~~ :j~ '...; ::.; " " ~" '~' , I') '·1. :' ::' 'r~ :, :'!'" y I ' f1ELlNOUISHED BY Sj~Jnature Prilllf~d NZlIllP. COrTlpallY f1ELlNOlJISHED BY Si~JnattJre Printed Nallle Company -. -------- riME :..L /J / / ^ ' :/ /'/ /' 'I OTHEn DME RECEIVED BY Siqnature TIME Prinlr~d NdlllP. DATE COlnpany f1ECEIVED BY (laboralory) ¿. Y ,')} --- ....-'--.".:=.: - - Signal;¢", ^. 0 ~/ / /-?/.J, f." / -- .- '....... - --" --- -~._" Prir;¡ted Name. I /A'?() " (":/<./r¿¿/ Company .--- .-------. - - - TIME --- ------ PAGE DA TE TIME UA 1 E ..-'7/ / ,'--' ¡' , / '/1'/'..) TIME / ;' ;'7/' . I I ì ," 1,- ¡OF I .ng~i!n- ",'T--Y- !-'" d t~i ' '. ,: ¡:,' J ~I . :,"f.., I . ','.,. ~ ~ 'J.! . ' /. I·' ! . ') I ,( .) ) . f!· OBSEIWATIONSI COMMENTS ! ! J () . ) e , ,I." /1, 'f-r-1 ¿-' /¡;,~..., - - --- ------. e TOTAL NUMAER ..2 OF CONTAINEf1S METHOD OF SHIPMENT ?t:,t'H~tI.:.;'UNC on S 1 OHAGE f1EQUIf1EMENTS ,fU fJ~1 'i.f j,. ~/t r7 7;, (/ v'?l--I.:/ . --.- -- - - -~ - --- "-- -- -- ------ KRAZANe& ASS 0 C I IT E S , IN C Q Construction Testing and Inspection Geotechnical Investigations Environmental Engineering Laboratory Soils Testing Monitoring Wells August 1, 1989 Project No. E89-156 Chevron U.S.A. Inc. Attn: Mr. Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Composite Soil Sample Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Mr. Sampson: In accordance with your authorization, we have completed the sampling of the excavated stockpiled soil and subsequent chemical analysis at the above referenced project site. The stockpile originated from the soil that was excavated in the vicinity of the west dispenser island. One composite sample was obtained from the stockpile on July 26, 1989. The sample was ob-cained by Mr. Michael Batten, our environmental technician. The composite sample consisted of randomly selected points at depths from 6 to 18 inches from the surface of the pile. The dimensions of the stockpile were approximately 15 x 10 x 6 feet, The sample was collected in a mason jar at random points throughout the pile. Aluminum foil was placed over the top of the jar and then the jar was capped with a tight fitting screw on lid. The sample was then labeled a~d placed in a cooler chest which contained synthetic ice and transported under chain of custody protocol to a state approved laboratory. The sample was analyzed for the presence and concentration of benzene, toluene, xylenes, ethylbenzene, and total volatile hydrocarbons by E?A 8020 GCPID and 8015(M) GCFID and total lead by EPA Method 7421. The sample was obtained in order to establish the disposal criteria required for the excavated soil. The tabulated results of the chemical analysis Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 L: California (800) 233-5050 : _ FAX (209) 291-5010 e e Project No. E89-156 Page No. 2 performed on the sample collected may be found in the following table. TABLE I Concentration of Petroleum Constituents in Soils ComDosite Soil SamDlinq Chevron Station #9-1554 10 Union Avenue Bakersfield, California July 26, 1989 (All Concentrations in parts per million) Ethyl- Total SamDle No. Benzene Toluene benzene Xylenes TVH Lead Composite A ND ND ND ND ND 20 TVH = Total Volatile Hydrocarbons by EPA Method 8015M None detected at the detection limits noted on the attached analytical reports. ND = Based on the results of the composite soil sample , it is recommended that options of disposal at a Class II or Class III landfilled be explored. The concentration of 20 ppm total lead is anticipated to be associated with background levels as the previous background sample obtained f rom the site revealed 53 ppm total lead. KRAZAN & ASSOCIATES, INC. e proJ4IÞt No. E89-156 Page No. 3 If there are any questions or we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. CCW/DA/lc Respectfully submitted, KRAZAN & ASSOCIATED, INC. I. !. (, ,"""' , ~ I I . ,l' , '-.-' C-<.5'-,:,,--,"-_:' ","- '. ; . -\,., --~ ~'-'---"- - ~ __ \ ' \ I ., Cynthia C. Wagner Environmental Specialist £)~~~-- Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 3c herewith lc Kern County Environmental Health Department Attn: Turonda Crumpler KRAZAN & ASSOCIATES, INC. e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephon,~ (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/27/89 Sample Type Soil Sample Description 1235 hrs. ComDosite A Soil Analyses for Total Lead Compound Results Detection . (mg/kg) Limit . (DLR) Total Lead ................ 20 1.0 Method: EPA-7421 ND-None Detected 8DL-8elo~ Detection Limit DLR-Detection Limit For the Purposes of Reporting ):~II.E9 .. ; Inorganics Supervisor e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street . Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Composite A Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/28/89 Sample Type Soil Sample Description 1235 hrs. II Soil Analyses for BTXE and TVH I' Compound Results Detection (mg/kg) Limit (DLR) Benzene . ND 0.02 ................... Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected SDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting j70489 {j 72// J ". ,"¿l/L/ .' ----- QA/ c SU/~ v C--/ h. B 1\ /. ¡\ l~ & ¡\~~()\:I¡\'II~S ["!limon",""" '-I"/rl '''1mg /too Sarnl'lltIg Sp4'c¡ltr~d '-upl SPflrllvfI Sludift1, l,boll,orr Soils ,,,,rmg Soils logln.flrlng G.o'"chnlcltllnllt!";g.Uon, \á~_\1 i~1 _"_...__~n'_______~.___~ ___._ __._.._.________ ----.-----..--- - .- ---.-..----.- ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 (209) 291·7337 {7 (/'/:' __ / ¿-/ PROJECT . &¿J .. __ ,J (;, SAMPLERS (SIGNA TUllE) /J -'l,!' 4 ,þ. " ,), .." .J/. //~~?i?'/ /-~h4L.. Ill. ~!(/(,'1né/ ß:,lC(1. DATE TIME LOCATION --.. _. - I 0~r? 1/ / !./ ~_. 0:,~¡v';;,~t" 2. í I 12 It' F ~X':/Ir!X;¿ II _ Printed Name SAMPLE NO .---------- -.. .---- - - -- ---.-----.. --------..---- . --.-----.-.---.- _u___~ ______..._ ------_._-.----- ~---- --- .... ---- ----------. Clldill ùf vU~lOQy Recora DATE 7)0':.1 ------.-- PARAMETERS ¡,~:-- -" I.. U) I ,"r U) \. ,n .... '? u C) no -, II/ 'n :¡ t~. " UJ .J '" ., U () (.:J ~ (.') , , ,'J , rn ¡~ '0 '" rc ". , C) f.:"} '1 .., '" ., , rL -1 ,.. .. U) '" u. ., '" '"~ '" ... '" tU " n " '" -' I ... :> C) ., <:1 r:J n' 0 t.:J ...: f--- n. " -., ;_t~ u: (-") -< " .... :1; :1: 0 ., -, ..1 '1 cr ~ n. CJ > <1 0 0 ::6 u "- ,. ç.") ,. ::r-: I > .. _...__._.~~~___.________ __._ _..___u _~_._ DME I1ELlNQUISHED OY ,.--.- .~--- RELINQUISHED BY DATE ~¡Ø~4-dd~~ Y/l j:Á- Signature I J,. 1/,; ÁItC/)1JI (ét:J. . TIME: PrintO'1d Name !(r:I!,í!!f~__ n_.__ r Company r RELINQUISHED OY RECEIVED BY __ __ ..H_____ ____~_ .__ Signature .~ --- -~--,._- -.-- '.14- Printed Name -.._--- -_._.._----~------- Comp;my __ . _u __ _ ... . __ .___________.____.. HECEIVED BY DATE Signature Signature TIME ----- --- -- --..- . ---------------- -.--.-------.- Printed Name Printed Name u_. __._ .._______ Company Company ------ .---- . Signature TIME Prinled Name Company DATE )< ".- -'---.------- ----------.-----.- . .--. --- --.-..------ --. . RELINQUISHED BY . - -. ..-. ._-----------~------. Signature TIME Printed Name Company ---.----.--- - . -.-. -.."--..--.------.---- .._--,-~--~---- - -.------- --- - ---- ----- OTHER PAGE --- -~._- ------.-- .-. 'n C) u '" U) ., ir " '-'.I 0 n - . n " cr . ,., n ,~ ., .:.r '" " C') >I, IU :r: ,. ¡ u. -, -, u (:) ,n 0 0 ¡-.: . -< ,n ex ., '" <, ,.. r:-) OJ 0 .,- ,- U1 'r -' 'õ2 ~i') c> '" n: g T -=< I , \ u. U C) n, , u >\ DATE RECEIVED BY Signalwe TIME -. _ ~ _ .----- -.--. --.-- Prinled Name DATE Company .- . RECEIVED BY (laboratory) ./-"V ~J-j; /. Signat¡~0 (/ ~., / /., 1/· c-·_' !. " "'ft_ .' - // - ..-- ---. -..-. - ------------_.~ --- ..."- Prioled Name r . % / . ·'11 " L / c/r¿[// ~ .__.._-----_._~-..._------ ---- ~- Company ----------~- - ----. - - TIME DATE TIME DAfE ./.'/ / '-"'/ ._ 1/ iJ .loF / (/) n: LJJ z <1: I- Z CJ U LL o rr: UJ []) -"091r·-. ~u IT' -..y- h ;, J ~ I I :J ~ -, 5 " ~ I J' . j ',' / J' ) . /..) II <'.' : \.J ¿ OBSERVATIONSI COMMENTS "'} I ) (.) " I.' 1..) / i l..· . ::J Z J :' r~((/ ~{;,:'J.i:;;tv ___ . .__.._.___.___ n_.____~__.__._._ _m _.____ ____ n .___ ___,_ _____ ___ _r'__' _,_______ --' --------.------ TOTAl. NUMBER ~2 OF CONTAINERS METHOD OF SHIPMENT ~t I~AAA- j SPECIAL SHI~~~~NOLlNG OR STORAGE REQUIREMENTS ,fU fl~1 7'.[ j r. 7/11 -"7/ n / /. C v"?uV _ ---.- .-------- ---. --.--- --------.- e . . M Telephone .... ....................... :.l. ..::.J.1:.=:·~::.t ......'. ..J';.::,~ ....... ...... Tele honed Holding on line # ............ Lon distance call Came to see you Will call a ain Please' call- Returned our call ., ., Waiting to see you Me,,"ge~~~. ~J)'...~........................ ....1D..~J5.................1<3{~....~...................... ,;':..Q ~ n C'~, íG.('~ ,r~~ .....ç-.].. .. .. ... ......,... "~'~'"'''''''''''''''''''''' Ò\~ ...... . . .. ...u. T;me'uu....u... Dot .. ................. Signed ........................................... ~ ,... .~, ~ " ..... ~~ ..... ..' ...... , '~ . :< ',. "Yo 'Or¡.. ,;. .r--:------r--.. ~---'- - . ..-~-~ ····t· .;,' "".:" , :' h.. v- ..~.' ". "-..... ~.. .... . ~ ~ _.~ ":'.' ;......: ". "~-".>"7...',..'';;;'...~ ....:~",,;. ."" .. . ! , I~I '\ :: ., ...,' ;. / ----~ .~ II; KRAZA~& ASSOCI!TES, IN C. Construction Testing and Inspection Geotechnical Investigations Environmental Engineering Laboratory Soils Testing Monitoring Wells August 1, 1989 Project No. E89-156 Chevron U.S.A. Inc. Attn: Mr. Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Composite Soil Sample Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Mr. Sampson: In accordance with your authorization, we have completed the sampling of the excavated stockpiled soil and subsequent chemical analysis at the above rererenced project site. The stockpile originated from the soil that was excavated in the vicinity of the west dispenser island. One composite sample was obtained from the stockpile on July 26, 1989. The sample was o;::-:ained by Mr. Michael Batten, our environmental technician. 'I:~_~__~_<::''='.~E?S i te sample consisted <?f rê:!l90,I11_1.Y .selected po~nts . at de?!:}~s_X:¡;,º!!Lj)_.......t.CL..1.a inches from the s,~~!f ~ce _º.L tQ..ê....__pilf:;. The dimens ions of the stockpile were approximately 15 x 10 x 6 feet. The sample was collected in a mason jar at random points throughout the pile. Aluminum roil was placed over the top of the jar and then the jar was capped with a tight fitting screw on lid. The sample was then labeled a~d placed in a cooler chest which contained synthetic ice and transported under chain of custody protocol to a state approved laboratory. The sample was analyzed for the presence and concentration of benzene, toluene, xylenes, ethylbenzene, and total volatile hydrocarbons by EPA 8020 GCPID and 8015(M) GCFID and total lead by EPA Method 7421. The sample was obtained in order to establish the disposal criteria required for the excavated soil. The tabulated results of the chemical analysis Main Office: Fresno/Clovis · 3860 N Winery · Fresno. California 93726 · (209) 291·7337 Bakersfield (805) 393-2343 := California (800) 233-5050 0 FAX (209) 291-5010 e e Project No. E89-156 Page No. 2 performed on the sample collected may be found in the following table. TABLE I Concentration of Petroleum Constituents in Soils Composite Soil Samplinq Chevron Station #9-1554 10 Union Avenue Bakersfield. California July 26, 1989 (All Concentrations in parts per million) Ethyl- Total Sample No. Benzene Toluene benzene Xylenes TVH Lead Composite A ND ND ND, ND ND 20 TVH = Total Volatile Hydrocarbons by EPA Method 8015M None detected at the detection limits noted on the attached analytical reports. ND = Based on the results of the composite soil sample , it is recommended that options of disposal at a Class II or Class III landfilled be explored. The concentration of 20 ppm total lead is anticipated to be associated with background levels as the previous background sample obtained from the site revealed 53 ppm total lead. KRAZAN & ASSOCIATES, INC. e proJ~t No. E89-156 Page No. 3 If there are any questions or we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. CCW/DA/lc Respectfully submitted, KRAZAN & ASSOCIATED, INC. r . C I -,., . ,--. , I . _ 1.. I . l "--- ê-<-:-: -,~~- "- '- '--'~ ¡ì I .\..<--- . ''': Cynthia C. Wagner Environmental Specialist ~~~~-- Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 3c herewith lc Kern County Environmental Health Department Attn: Turonda Crumpler KRAZAN & ASSOCIATES, INC. e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * fresno, Caliiornia 93706 * Telephon~ (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Composite A Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/27/89 Sample Type Soil Sample Description 1235 hrs. Soil Analyses for Total Lead compound Results Detection . (mg/kg) Limit . (DLR) Total Lead ................ 20 1.0 Method: EPA-74Z1 NO-None Detected SOL-Below Detection limit DlR-Detection limit For the Purposes of Reporting -, /,' -' -:,/J':'£9 Inorganics Supervisor ¡ e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, Caliíornia 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Composite A Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/28/89 Sample Type Soil Sample Description 1235 hrs. II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit ( DLR) Benzene . ND ................... 0.02 Toluene ................... ND 0.02 Ethylbenzene ..-........... ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BiXE-EPA 8020 iVH-EPA 8015M ND-None Detected BDl-Belo~ Detection limit DlR-Detection limit For the Purposes of Reporting j70489 /). /7 !:¿.¡/£-. ~-< ....----. QA/Ic SU~ K H ¡\ Z ,\ N & ¡\SSOC ¡\ T E S ("v;rom""nl'" "fOl,t rl!,'m9 ..nrl SarTIl"lfIfJ Spttr:lafl'f'd 'UP/ SPflplfqf! Stud/Its Labor8Io,)' Soils I.Sling Solis lngttflt't'¡ng Geoløchniclt¡ n""~igflíons i_I ----.-.._- .~-----,--. ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93126 ~!~OJECT ~~09) 291.7337t::ft__.¿!:{. .,_______.__ SAMPLERS (SIGNATURE) ;/ '/.;' .~ ,V "._ ý_" /?l{£~v.'/~I //),;~~~.. ¡;'J ~..I' /, I 1)./-/ \ .... './ /t. 71f(', Lí¡;,& i.../ I, DATE TIME LOCAfION . .--.. -.. /' -," ., ._.____._.1. 0.~:'?7 J- ìS" C~y1r~"~ /f __ ___ ___.:? I' ! 2 I( F é,f) s:/J('X'.L /)'7 Printed Name SAMPLE NO -----,--- --- -----~--- ----- --- ----------- ~.__. u_~__ "nn_____.__ - ----------.. ~--~--~._.- ---------- -----.. --------_._~_. . ---.--- -----.--- --~ _._-~. ~--.~--- --------- ---~--- ...-------- -----~ ---- ..----- - ------ - -.-.. ---- --- -------.- - -.---. - ._~- --- ._-~~._.- __~n______ RELINQUISHED BY DA TE jI~~~d&~ ~~i ,.._,..________.____ Signature f Signature 9,g,; II(d~ ç.A:~ _ TIME Print'Jd Name íit:~~,:,:-,,~ DATE RECEIVED BY TIME .-----..---------- :.¡l+- Printp.d Name -- --- ------ DATE Company RECEIVED BY DATE - -. - ._-----~- - -.-.------.. - - --.- .- . -.- -- _._---~ --. Signature SignaturP. TIME TIME Printed Name Printed Name . n._ ______.____ --- --.---. Company Compa ny . - ---- ..--_. CIId.ÎII of GUSloay Recora DATE :.,¡. /)50" ' 1/ r G rl·1 / .. f 'n I ., ., ", \. ", ,n LJ ,., co " , , '" v, ,- --, '" ~ :I: z \ÍJ " ,< 'r, ,,- '" ., Ö n co co c, 0 --< (!j ~ ''-' '-' ," 'C Œ 'C IT: a: ~ .~ I!l I,t: en ,- r, 0 c~ ( , S ':> CC " -, '" , n_ ., n u. f2 ,. , ,n '" '" -" '" '" '" \1.1 T :1.' '" ~ u: II.' c, ,., C J ¡I) --, ~, --, --, , 0 if) 0 ;:; ~~} ~ 0 ,., , co ?~ ,: , ., co ,n 0 Œ ., n_ --< .- ; ~ '1 ·f " -, ~:I C"1 0' ~~ L, r u ., --, ." .. '." , ,,, x a: -t ". ". c".) n ~2 ~~ " t", <t', ,-) (1'. q :r , :1: '(' U n. ,.. , T :c , , 1 ". ,J c) ,,- , LJ )< X ----.. -- -- .._-- .- -- -.-- -.- ~_..--- --..- --- -_.. _.- ----. -----..---.- PAfiAMETEns OTHER ¡ __. _.___ ~ 'U_ _..___ --. - ..-- .-- ---- -- -.- ,- ,-:. ---.-- --.- ._--- - ..._~ -'- .._n_ ____ .__.~___ DATE RELINQUISHED BY RECEIVED BY Signature ----..-.--. ---,----------------_.. TIME Prinled N;mle Company Comr>any - -- - - - -'. RECEIVED BY (laboratory) ¿ " '/ ~'JJf ___.__ _~·o,-.·=. _____ Signat~ro ¿) (/ ././ I-f .-?:V ¿//'- / c -",.../ ..' ~./ .. Prioted Name. ;/, / / ~~ / ¡;___~::c!u~_ ç?<!r~~/. . i h );'_ Company -- --- - ----. ------------ Signature _._----~-- -- ----~- Printed Name ---..-- ---- ...- ---- -- --~--- RELINQUISHED BY DATE Signature Printed Name Company '~n. __ _ _u. -~_._---- .-----~ TIME -------_.--- .. ~~------"------- ---------_.--- PAGE DATE TIME DATE ~ / . / '''/ .~ ,/ iJ ..tOFu I u ._ ~___ .. _~___~ ----QAtAR-·IT-·V- I, ,..1 i. ~ _ " t '" G \.... . ' ) i.) /! I . /.' . ) , /' ~ .) . j' ,1-- , \..... en rr: w z <t: ,. o U lL o rr: w CD ¿ :::> z OBSERVATIONSI COMMENTS , ) . I I ) '-~ / j ) J i' \.. . / 1...__ I "'j . _____________m_.__.__._, --. /. u___.u _ -- /1_,_____. . J_ ~.~it{-t-< J~~N -. --. -- --- --- - .--- --- ------ -- .~-,.---,- .-.-. --~.._-~---. -..-- . -.-. ---- -_._~-~-----_._- .----.---.------..-.- --..-.---..- - --- -- --~-~~.~- J TOTAL NUMBER ~ OF CONTAINERS _ .._... _~_~_ _." ____ _ _.__~,,_._ u METHOD OF SHIPMENT ·r6[SH~~LING OR STORAGE REQUIREMENTS ru4 fJdh-'1 7f j,- C 3;}v 7/'ik ._..._-~----- K R A Z A Ne & ASS 0 C I IT E S , IN C. Construction TestIng and InspectIon Geotechnical Investigations Environmental Engineering Laboratory Soils Testing Monitoring Wells August 1, 1989 Project No. E89-156 Chevron U.S.A. Inc. Attn: Mr. Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Composite Soil Sample Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Mr. Sampson: In accordance with your authorization, we have completed the sampling of the excavated stockpiled soil and subsequent chemical analysis at the above referenced project site. The stockpile originated from the soil that was excavated in the vicinity of the west dispenser island. One composite sample was obtained from the stockpile on July 26, 1989. The sample was obtained by Mr. Michael Batten, our environmental technician. T~~.._ c~~posi te sample consisted C2f r9:,I1-ª9.l'!lJY. .s,el~ct_e=d. .poi..I1.~s. a t. de=.P-~.È.~_...!E,ºrrLJ5-to 1.!Linche~ from the__ susfac~LJ;hEL-p.i.l..e. The dimensions of the stockpile were approximately 15 x 10 x 6 feet. The sample was collected in a mason jar at random points throughout the pile. Aluminum foil was placed over the top of the jar and then the jar was capped with a tight fitting screw on lid. The sample was then labeled and placed in a cooler chest which contained synthetic ice and transported under chain of custody protocol to a state approved laboratory. The sample was analyzed for the presence and concentration of benzene, toluene, xylenes, ethylbenzene, and total volatile hydrocarbons by EPA 8020 GCPID and 8015(M) GCFID and total lead by EPA Method 7421. The sample was obtained in order to establish the disposal criteria required for the excavated soil. The tabulated results of the chemical analysis Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 ~ California (800) 233-5050 [J FAX (209) 291-5010 e - Project No. E89-i56 Page No. 2 performed on the sample collected may be found in the following table. TABLE I Concentration of Petroleum Constituents in Soils Composite Soil Samplinq Chevron Station #9-1554 10 Union Avenue Bakersfield, California July 26, 1989 (All Concentrations in parts' per million) Ethyl- Total Sample No. Benzene Toluene benzene Xylenes TVH Lead Composite A ND ND ND ND ND 20 TVH = Total Volatile Hydrocarbons by EPA Method 80iSM None detected at the detection limits noted on the attached analytical reports. ND = Based on the results of the composite soil sample, it is recommended that options of disposal at a Class II or Class III landfilled be explored. The concentration of 20 ppm total lead is anticipated to be associated with background levels as the previous background sample obtained from the site revealed 53 ppm total lead. KRAZAN & ASSOCIATES, INC. e projtlÞt No. E89-156 Page No. 3 If there are any questions or we can be of further assistance, please do not hesitate to contact us at (209) 453-9637. CCW/DA/lc Respectfully submitted, KRAZAN & ASSOCIATED, INC. C c yn + k~- (i . c2' C-LS-,·~':·"- Cynthia C. Wagner Environmental Specialist ~~~~-. Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 3c herewith lc Kern County Environmental Health Department Attn: Turonda Crumpler KRAZAN & ASSOCIATES, INC. e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * TelephonE!, (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/27/89 Sample Type Soil Sample Description 1235 hrs. Composite A Soil Analyses for Total Lead Compound Results Detection . (mg/kg) Limit . (DLR) Total Lead ................ 20 1.0 Method: EPA-7421 ND-None Detected BDL-ßelow Detection Limit DLR-Detection Limit For the Purposes of Reporting //; CiìO¿89 Inorganics Supervisor e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, Caliíornia 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Composite A Lab No. Ch892326 Report Date 7/31/89 Date Sampled 7/26/89 Date Received 7/26/89 Date Analysis Complete 7/28/89 sample Type Soil Sample Description 1235 hrs. II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit ( DLR) Benzene . ND ................... 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting j70489 KHAZAN ASSOCIATES Cllaill of GUSloay Recora & fn~ironmen'.' (,p/d Te11ing and Sampling Spec¡alll~d Fup' S~ft~ge Sludifll L.bor.rory Soils r ."ing Solis Ènglnurlng Geo'.chnlelll InvfOsllgllonS _I - [ I ... .-1 DATE _~") f/'¿1--- PAGE_~___! OF ______l ~---_.~---- --- ~~------~--- ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO. CALIFORNIA 93726 PROJECT (209) 291,7337 _v' %1- / 66' __ ________._ ._____ _._ ___uu_._ ___&________ SA_~~~RS.(S::~~~~~~)f!A~~~!~ ;a0~____.__ ~rinted_~~:e__ __ _ __Ii..~ _/{; ~"f.l___ ¿7¿;__t. t(L__ SAMPLE NO DATE TIME LOCATION -- -- - ---- - --, - -- - ~------ ------------ --- ---- ____J?fr=1Jl;; ~/~=-==-_ PARAMETERS 1-- :'- ~. ,-- _____ __ ____ .u~__ _~._,_,_ .____ _~_ .____ ___ OTHER â3 .f) I -' « .n ~ en if) CJ ¿o ," U '" U Z w ::>' Z <- :IO if) ~1~ ~ z « <Ie Q <t 00 ClCJ CJ CJ 0 a:: =< UJ n:: a: u: a: a: a> ,- a 0 <:> Cì 0 ::> a:: I_ n: <t ..,- -' '" ,'- :- 0 U> « 7UJ 'u '" 'u :r.: ,- ,- "- "- U '" -' 1 --' _J -, L) 0 if) ª 0 ;~ ~ <:J ~:: ¡:-- f-',:: ~ « if) -- a:: 0 « « -- ~~ ;" f--- ~ >< m 0 .J -' _J ;; '" a:: -' 0 :- <-( CJ 0 '0 0 u, n: '2 :1: ::> :r: ,- I I > > ,-, 0- U C> "- I- U l- (/) "'1.:"-- _J I- ("") .-1 Ë j; ~ ¿ ~;i 0 1-" :r: '1: a- III Q U a.: ~ I- _. '" <f) « UJ n: ," .", -, is \-, --- --~ - ~ -- ----- )< x_ ---.- -.----.-- ------ -'-- --- --- -- '--.-- ----- --.-.-- --------- -------.- . ---'--' --.----.-.--- -----..--. ----- ----.- --~--- _.~--_.._-------- -------~- -_.--- ---' '--- -~-- --- ---_.- - ----- - ---- ----. -------------.--- .-- - -.--. ..-.------ -----~..__.. - _._~-----_.---._---------- -------- ._-~-----_._--- ..- ._-~_._---- ----_.__._---~----~~---- -~-- ----- --.-------- ------~--------- -. ----- ---_._-~-----_.._._----_._-- -----. -.---- -'- ..- .-- --'--< _____________~ _____~___~_.____.____ ________._ __________________~_.____ _u__ ___ _____ _._~ ___~____. ______ (f) 0: UJ Z ;;ï: >-- Z o U u. o a: uJ Q) :2 ::> z -rftIO R IT ,j/"} / I/c) ! \.....- OBSERVATIONSI COMMENTS ')/ ) C) /-..,,) (-- - ----I - --.--------------------,-----.--- --..--- .---- - ----------/1-------- __ _J.. ~ ~L.__ª~L~----u -- - - ---.-------------.------- . .._-------------~----------------_. . ---.-------..---.--------.---- ------ -_.._--._-~_._--------- ..----.----------------- ----.. -------- --._---- --------.-.- -----~- --.---------- ------ --- -- -- --'~ ---- --- -~- ----- ----. --~_. ----. --~ .----- ~--- -----. --- -- ---~--~~--- --.-----------,--------.----. .. ---- ------ - ----- ._-----~--- --- -- ----- - . ___._ .________ __..__ _.___~_____ .__.__ ___.__.__.____~n.._________ ______ ._.___ _~___ _._._.._. .____ ____ ____ .______.__ ____ ._.._.__ ._,_. ___ ____ _~ . _____ _____ __ .~_. _~__._. ._.__. ___~_______~______~._ ~-- ------ -_. --- ----- ----- -- -- --- -- - --- '-- ._------~--- -- -- ---- ---- -- --. -- -- --_._~ .~--- _._~-- --...- ..--.-- -- .---.---- ------ - .- -. -------- ---. .. --'-- ---- ---- --- ---- RELINQUISHED BY DATE RECEIVED BY ?,~Uptdßzr~ ~;j,,------------,--.-~- Signature - Signature .:;J,_&;!J(,:C~_?.Ç!~_, TIME ___,_______ ________ Print~d Name Printed Name 1(, ;¡~ f~~~~~:~EO-:Y--~~~-~DATE- ~-€~~Jtõ-~Y---~--=- DATE RELINQUISHED BY DATE RECEIVED BY DATE _._-----_._~--------- -"-- -'"--_.._--~---- Signature Signature ------~ TIME TIME TIME ._---~---_. -_._~---- -------.-----.--------- Prinled Name Printed Name ----~-~----- ------- --------------.--.--- Company --------. - ---' --'---'_.--~~ DATE RELINQUISHED BY ------ Company ---..------- .----. -._.._~-.._-~_.~------ -_.._--~._--_._- RECEIVED BY (laboratory) DATE /-.I~J/ -,I: _.______..~.::'!<~-__-------- (/ .''1/ Signjt~ø' ~ ~ _ _ v iJ jJ 0. 1'./ - '/ - _u__ - . ..~~'-:--:-:_-:u_~dn _I_ TIME Pri!}ted Name r . -l ~~~~q__~_ ç ~i~~~ Company ----------- DATE ~_._-----------~-_._----- -- -- --.- ----- ----. -------- -.- ---_._-_._----_._-----~ Signalure Signa lure Signa lure -----..._-- TIME TIME TIME - .-- ----,---,-_.- -----------.--- ----------------. Printed Name Printed Name Prinled Name ------ ._~... --.------- ------------ - - -. ------------ ..---------- .._--------~---~- Company Company Company -- .-. - - - -,--. -. - ---.-------.---.- ..-.. ----- -.---- TOTAL NUMBER .2 OF CONTAINERS .- -----'"----_._------,- ..-- --------. METHOD OF SHIPMENT -~(SH~lING------ OR STORAGE REQUIREMENTS f'u4 Ø~I 7f!:- c 3 y //11 m__..__ ._.__ ____..________.~.__'_h___._ __. __ __~_ KRAZANe& A S SO C I IT E S, IN C. -::-~ Construction TestIng and InspectIon Geotechnical InvestigatIons Environmental EngIneerIng Laboratory SoIls TestIng Monnorlng Wells July 25, 1989 Project No. E89-156 Chevron U.s.A., Inc. Attn: Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Additional Soil Sampling Chevron Station #9-1554 10 Union A venue Bakersfield, California Gentlemen: The enclosed report details our sampling and the subsequent chemical results from the additional excavation and sampling in the vicinity of the west dispenser island at the above- referenced project site. Eight samples were obtained from the above-referenced site on July 19-20, 1989. Six of the samples were obtained from the vicinity of the west dispenser island and two of the samples were obtained at the project site borders to be analyzed for the bac~ground concentrations of total lead and total organic lead. Based on the results of this investigation, it was determined that concentrations of petroleum constituents exist in three of the eight additional soil samples obtained from beneath the project site. Tv,'o of the samples were obtained from north of the west dispenser island at 6 and 8 feet below grade on July 19, 1989. These two samples showed only trace levels of petroleum constituents. Although the limits of the petroleum constituents are not fully defined, it is anticipated that these trace concentrations are indicative of the fringes of the plume and pose no threat to groundwater resources. The remaining sample was obtained at a depth of 6 feet below grade, five feet east of the north dispenser of the west island on July 19, 1989. The six foot sample revealed a concentration of 1400 ppm total volatile hydrocarbons to be present. Consequently, additional excavation and sampJing was conducted on July 20, 1989 to determine the vertical extent of this contamination. Additional soil was excavated to a depth of 10.5 feet north of the west Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 D California (800) 233-5050 D FAX (209) 291-5010 e e ProjectNo.E89-156. .. . page:No.2' ..- dispenser island. Two soil samples were then obtained in the n~~~a~t.a,nd.sÇ>~~~~tcÇ>rJ\e~:" .~':: of the excavation at that depth. These samples revealed no detectable concentrations of . petroleum constituents Based on the results of this investigation, it was determined that concentration of petroleum constituents did not extend to a depth ofJ.Q2. feet below grade north and east of the west dispenser island. A concentration of 53 ppm total lead was revealed in the background sample obtained west of the service station building. This level is anticipated to be associated with background levels as the total organic level at the same location was non-detectable. If there are any questions or if we can be of further assistance, please do not hesitate to contact our office. Respectively submitted, KRAZAN & ASSOCIATES, INC. C~Î +~~ C' LA:) ~ Cynthia C. Wagner Environmental Specialist IQ~~~- Dean Alexander Geotechnical Engineer RGE #OO2051/RCE #34274 CCW /DA/ej ... KRAZAN & ASSOCIATES, INC. KRAZANe& ASSOCItTES, l~, N' C . Construction Testing and Inspection GeotechnlcallnvestlgatJons Environmental Engineering Laboratory Solis Testing Monitoring Wells July 25,1989 Project No. E89-156 Chevron U.s.A., lnc. Attn: Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Additional Soil Sampling Chevron Station #9-1554 10 Union Street Bakersfield, California II\T'fRODUCTION In accordance with your authorization, we have completed the additional sampling of soils and subsequent analysis at the above-referenced project site. The additional sampling took place in the area of the west dispenser island. The vertical extent of the petroleum constituents in that area had not been thoroughly defined during the previous investigations. SITE DESCRIPTION The project site is located in the southwest 1/4 of the southwest 1/4 of Section 32, T29S, R28E of the Mount Diablo Baseline and Meridian. Specifically, the subject property is located at the northeast corner of Union A venue and Brundage Lane in Bakersfield, California. The site covers approximately 1/2 acre in area and is square in shape. It is bounded on the south and the west by Brundage Lane and Union Avenue, respectively. Commercial property occupies the eastern and northern boundaries. Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 0 California (800) 233-5050 0 FAX (209) 291-5010 .. - -'--., . . e e '..,. -.;' Projeèt:No.E89;'l56~. . . . : P-'gèN'o.2.. . SITE mSTORY ;" ~ .. ..,.;.... .' The tanks were removed by California Petroleum Equipment on July 11, 1989 under the supervision of Mr. Bryce Ruschhaupt. The removal process was observed by Ms. Turonda Crumpler of Kern County and Mr. Bruce Myers, our project geologist At the time of the tank removal, the soils from 2 to 6 feet below the bottom of the tank were noted to be light to medium brown, well graded quartz sands with minor pebbles. The soils at 17 foot depth were noted to be red brown silt with minor sands. For the results of chemicals analysis, please refer to Table I as follows: .j.. KRAZAN & ASSOCIATES, INC. e e' Project No. E89-156 . Page No. 3 . / ,,~. . . · .... ""TABLE'I ' . P' '.:\, ,".,..~' : ~ . ~ ~>;';.¡" : - ,,~' .'~' . . , = .. :. .. . .- . .' , " ~...", :'.':,. .,-. Concentration of Petroleum Constituents in Soils Tank Removal Soil Sampling Chevron Station 1554 10 Union A venue Bakersfield, California July 1989 (Concentrations in parts per mìl1ion) Sample Oepth Below Ethyl- Total Oil & Number Grade Benzene Toluene benzene Xylenes TVH Lead Grease TaX la 17.5 ft NO NO NO NO NO · · · 2a 17 ft NO 0,03 NO NO NO · · · 3a 21 ft NO NO NO NO NO · · · 4a 17 ft NO NO NO NO NO · · · Sa 21ft 0.03 0,64 0.51 7.7 53 · · · 6a 17 ft NO 0.02 NO 0.02 NO · · · 7a 21ft NO NO NO NO NO · · · 8a 17 ft NO NO NO NO NO · · · 9a 21ft NO NO NO NO NO · · · lOa 17 ft NO NO NO NO NO · · · lla 21 ft NO NO NO NO NO · · · 12a 17 ft NO 0.02 NO NO NO 13a 21ft NO NO NO NO NO Ib 8 ft . · . . . 20 260 NO 2b 12 ft . · . . . NO 310 NO 3b 3 ft 4.4 6.6 10.1 2.5 2700 · · · 4b 3 ft 2.1 T 1.0 3.6 4000 · · · _J 5b 3 ft 0.11 0.87 0.27 2.5 15 · · · 6b NA NO 0.02 0.02 1.8 37 7b NA NO NO NO 0.02 NO · · · 8b NA NO 0.05 NO 3.5 2.5 · · · lc 7 ft NO 0.38 0.25 2,2 NO · · · 2c 7 ft 0.09 1.3 0.67 5.7 NO · · · 3c 7 ft NO NO NO 0.07 NO · · · 4c 4 ft NO NO NO 0.09 NO · · · Sc 8 ft NO NO NO NO NO · · · 6c 4 ft NO NO NO NO NO · · · 7c 8 ft NO NO NO NO NO · · · & 4 ft NO NO NO NO NO · · · 9c 8 ft NO NO NO NO NO · · · lOe 4 ft NO NO NO NO NO · · · llc 8 ft NO NO NO NO NO · · · 12c 4 ft NO NO NO NO NO · · · 13c 8 ft NO NO NO NO NO · · · TVH = Total Volatile Hydrocarbons TaX = Total Organic Halides NO None detected at the detection limits noted on the certified analytical reports . = Not analyzed .>. KRAZAN & ASSOCIATES, INC. ..- ..-....~.:;-r.-:::-.. -....;- e e·· . .;."...... . Prójecr:~ò.~~9~156... . . . -'>Page::N()~_4 . . . '.' >.,../ ,~ 0\ " ,"',. . .;...."...... . ¡o~, ,'" '" ~,. . ,.' ,.>...(:/,....((:..~;.'.!..~,..;:..:~-~~. .{~...~ '"..* Based on the results of the tank removal sampling, it was detèrmlned ..that concentrations of petroleum constituents existed in sixteen of the thirty-four soil samples' obtained from beneath the project site. Six of the samples were obtained from the west end of the excavation from which the three fuel tanks were removed. Four of these samples showed only trace levels of petroleum constituents. Although the limits of the petroleum constituents were not fuIly defined, it was anticipated that the trace concentrations posed no threat to groundwater resources. One sample obtained from the east island at a depth of 4 feet below grade showed a trace concentration of xylenes. This concentration sharply attenuated to non-detectable levels within the next 4 vertical feet. Three composite samples were obtained from the excavated soils. These soils showed low levels of petroleum constituents to be present. The two soil samples obtained beneath the waste oil tank showed concentrations of total lead and oil and grease to be present. Total lead concentrations attenuated to non- detectable levels within the upper twelve feet.. " One of the samples was obtained from the east end of the excavation at a 21 foot depth in the previous location of the 5,000 gallon tank. The sample showed low concentrations of gasoline to be present. Six of the samples were obtained at depths of 3 and 7 feet below grade, beneath the north, center, and south dispensers of the west island. The three foot samples showed concentrations of petroleum constituents to be present, however, the concentrations sharply attenuated to very low levels with the next 4 vertical feet. The limits of the petroleum constituents and their potential impact on groundwater resources were unknown at that time. GEOLOGIC & HYDROLOGIC SE1TING The topography of the site is freshly graded and relatively leveL The site is located within the San Joaquin VaIley, which is situated between the Sierra Nevada Mountains and Coast Range of California. The San Joaquin Valley makes up the southern portion of the Great Central Vallev. -' Unconsolidated materials found in the vicinity of the project site are generaIly composed of aIluvial deposits made up of sands, silty sands, and silts with some minor clays and gravels. The source rock for this material is primarily granitic and metamorphic rocks located in the Sierra Nevada Mountains. The deposition of these aIluvial sediments began to take place in the Late Cretaceous age (100 - 65 million years before present). The majority of .i... KRAZAN & ASSOCIATES, INC. e e'" , '. .... ~. . .".. I:TojectNó; E89::t56 ' '.' . pâge:No:5'- T,J _'_ tþ~_ San JqaquÍ1): yalley wasco.~~red atthat tiIn,eby epeiric~ea~.! ,~peiric,s~~~,~,~E.~~.~~p?~~;~·,.':-" salt water bodies which were generally situated on the continental shelf ,or within the continental interior (inland sea). Sediments currently at or near the surface are believed to be of Quaternary age (2 million years old or younger) alluvium derived from the nearby Coast Ranges. Major faults in the vicinity of the project site are situated along the eastern edge of the Sierra Nevada Mountains and the San Andreas Fault Zone. The San Andreas Fault Zone is located along the Coastal and Diablo Ranges to the west. According to the 1973 photo revised U.5.C.5. Cosford, California, topographic quadrangle map, the project site is located at an elevation approximately 395 feet above mean sea level. The project site is located within the San Joaquin Valley Hydrologic Study Area, which is primarily an arid and semi-arid environment. Within the study area, 39 groundwater basins have been identified. Storage capacity is approximately 570 million acre-feet; useable storage totals 80 million acre feet. Fresh-water bearing deposits, comprised dominantly of alluvium, have a maximum thickness of 4,400 feet. Specifically, the project site is located in the Kern County Basin, which is bounded on the east, south, and north by the Sierra Nevada foothills, Tehachappi Mountains, and Coast Ranges, respectively, This basin is experiencing an overdraft problem in which the static groundwater levels are increasing in depth due to extensive pumping of the upper unconfined aquifer for agricultural use. The depth to groundwater below the project site may vary seasonally. According to the plates of the "Kern County Water Agency 1987 Water Supply Report, Improvement District Number 4" of May 1988, groundwater in the vicinity of the project site can be interpolated to exist at a depth of 200 feet below existing grade. SAMPLING & LABORATORY TESTING PROTOCOL Sampling was conducted under the guidelines established by the Kern County Environmental Health Department, California Regional Water Quality Control Board, the California State Department of Health Services (DHS), and the United States Environmental Protection Agency ŒP A). The sampling 'was accomplished under the direction of Ms. Turonda R. Crumpler of the Kern County Environmental Health Department. Relatively undisturbed samples were obtained by the use of a hand auger or from a backhoe bucket by pushing stainless steel tubes. Aluminum foil was placed over both ends. Each tube was then capped with tight fitting plastic caps and secured by electrical or duct tape. All samples were labeled and placed in a cooler chest which contained synthetic ice. -l., KRAZAN & ASSOCIATES, INC. .., ., ",,:,~' ... '--"--'---;--"'--..r'~ -,." ., "'- . 'e": '," ~ .: ~~':',;" .< ':, >. ",.' .:.. ; ,', .j~tojeçt No.. E89~1S6 '. ',. ....~~~.~.. . ~. :;. . " '. . : ; .~..+ ' .- . . '.~,".; ." ':'.'. .' \ .' ..'.>'.;-~.SaII\P.eswer~ Jhen transported. underchain'oE cu!)todyp~~to/~~~)9,;;~.~.~~~~PE~~ed <":~;";¡ ?"':;". . -. '-, . . " , ". . . - . - - ...,~ laboratory for analysis. Samples obtained in the vicini~ of the west dispensèr':i!ilãi\d"were' '. analyzed for the detection and concentration of benzene, toluene, ethyl benzene, xylenes;.and. total volatile hydrocarbons by EP A 8020 GC/PID and 801S(M) GC/FID. Two background samples were also obtained and analyzed for the presence and concentration of total lead by EPA Method 7421 and total organic lead by DHS Method. .- ,-' ~' --..... , - '. .' ~ FINDINGS OF THIS INVESTIGATION Six soil samples were obtained in the vicinity of the west dispenser island on July 19 and July 20, 1989. The additional excavation and sampling on July 19, 1989 were witnessed by Mr, Jim Sampson of Chevron USA, Ms. Turonda Crumpler of Kern County Environmental Health Department, Mr. Walter Tucker our Environmental Technician, and Mr. Bryce Ruschhaupt of California Petroleum Equipment Company. These samples were obtained for chemical analysis in order to define the lateral and vertical extent of petroleum constituents in that area. The tabulated results of the chemical analysis performed on the samples obtained may be found in " Table II as follows: TABLE II Concentrations of Petroleum Constituents in Soils Additional Sampling Following Tank Removal Chevron Station #9-1554 10 Union Avenue Bakersfield, California July 1989 Sampling (All concentrations are in parts per million) Sample Number and Location Benzene Toluene Ethyl- benzene 1 West Wall of Island Excavation ND 2 North of Island at 6 feet .03 3 North of Island at 8 feet ND 4 Five feet East of North Dispenser 2.9 5 Northwest Corner at 10-1/2 feet ND 6 Southeast Corner at 10-1/2 feet ND ND .44 0.03 8.5 ND ND ND .27 ND 19 ND ND Xylenes TVH ND ND .06 ND ND ND 10 1400 ND ND ND ND TVH = Total Volatile Hydrocarbons by EPA Method 801SM N D = None detected at the detection limits noted on the attached analytical reports. ¿. KRAZAN & ASSOCIATES, INC. - -- ~---':_'V- .._......,._ "_"'__~_. .... ,- ~ ...... .' .' "f ,". " "," '.' .. ~ . " ,.,.. "·e·· I.".. " ',I'" , ,'t'.I.. 1- ,.,~ ;..'::'~. ":"~~~~E~;~~6'~; '" '~P~~N~~,7 1 '.,,:.. t~...I .",', ' " ' """ .....:' ' ... . ':..: ' ;: ",-"; , :~.;'\ :; " " , ;,;;~/ J :'" ;.~ ,/f;""';;'>'Î'\,t·.'-·":')/"·'¡~~;i;':~//>""( .~':'" .',,' ,'.. / ;-~;;¡~;", .::'. " ,¿ ;;:"¿;,:~;~.ii,~~,·i~~<:;;,:<;,~,~~~¡,,;,:~.~,;t;~,~,;~,,:; <:::;t\-k ,> ' , ,:' i ' , Two background samples were obtained on July 20, 1989. These samples w~reobtainedin' , the vicinities of the southeast property boundary and west of the service station building' near the west property boundary. These samples were analyzed for the presence of total lead and total organic lead. The tabulated results of the chemical analysis performed on the background samples obtained may be found in Table III as follows: TABLE III Concentrations of Background Lead Samples Chevron Station #9-1554 10 Union Avenue Bakersfield, California July 1989 (All concentrations are in parts per million) Sample No. 7 8 Sample Description Background #1 at 3-1/2 feet Background #2 at 1-1/2 feet Total Lead 53 o Organic Lead o o CONCLUSIONS Based on the results of this and previous investigations, it was determined that the vertical extent of the petroleum constituents in the vicinity north and east of the west dispenser island was less than 10-1/2 feet below grade. It is anticipated that contamination at or above detectable limits had been removed from the excavation. The concentration of 53 ppm total lead, revealed in the sample obtained west of the service station building, is anticipated to be associated with background levels as the total organic lead level at the same location was non-detectable. KRAZAN & ASSOCIATES, INC. +': . ~ ':".~~--, ._- -- --' "-1, , , " . t ," ',."?' ¡ -','" .. . , .,.. I " ..~e··':···· ".'" .. . '- ". ..... ·,'·a··.'···';;··k''':' .--......r._....,;.. . ',~.' ,.':"'" 'ProïedN~_S . ,.'. . "," .:.:. " . " .,Page:-l~odi'. '. i' 'C,;;'" i"". >ç¡;,,~Mi_,¡,~4~~~\~:.i;;{' .'., ..... .. ';;' ¿.?¡';C· , } '. . . ~ . ~'. -:>. y . - ;, " -' ,....,'?:·:?-f·::·:~..·..· LIMITATIONS :.;~'~::.'~',~. ~~:'",,\:..!.;,.;~;,,;,,:,'~':';+'~~'< ~.. ....-. ,,~. ,.....A....·.\.-.;t;~,·~...,..~..· ..".......~ ...""..' .'! .' ~ ';f:~'''.t¡,( .' J:".. . .. I) . .' _._.. . The findings of this report were based upon the results of field and'laboratöiy. investigations, coupled with the interpolation of subsurface conditions associated with our samples. Therefore, the data are accurate only to the degree implied by review of the data obtained and by professional interpretation, The sample locations were located in the field by review of available maps and by pacing or tape measurement from existing landmarks. Therefore, these locations should be considered accurate only to the degree implied by the methods used to locate them. Chemical testing was done by laboratories approved by the State of California Department of Health Services. The results of the chemical testing are accurate only to the degree of the care of ensuring the testing accuracy and the representative nature of the soil samples obtained. The findings presented herewith are based on professional interpolation using state of the art methods and equipment and a degree of conservatism deemed proper as of this report date. It is not warranted that such data cannot be superseded by future geotechnical, " environmental, or technological developments. If there are any questions or if we can be of further assistance, please do not hesitate to contact our office. Respectively submitted, KRAZAN & ASSOCIATES, INC. C0\~-+lc~ C· W~~ Cynthia C. Wagner Environmental Specialist ~~~- Dean Alexander Geotechnical Engineer RGE #002051/RCE #34274 CCW /DA/ej 3c Herewith Ie Kern County Environmental Health Attn: Ms. Turonda Crumpler .... KRAZAN & ASSOCIATES, INC. ..----;(' ,--.--------. T --- ...--- __________- ..e> --.----- LEé"?E.r10: J777)'l~.D. E.A:::D-VA-rEO -ro ~ \0.5 ~w GR.è-OE. 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I V!CIJf'?" ~: 7#.I?JtUP ~ 7Ã~ ~M U.S.<=;,<;¡; //~t>J'r QI1V-.r.=~'sj 4~~ ~~p (ToFt» ~' ~~ "/.S-,..",¡;./. ~~es 09r.ef/.? /9,S,¢ .Pß;e,él:V/6é¿;::>, /9~ 1/973 "::::::>1;3-1 T~ ~'4- 15'54 c~VaO~ ~Le 1-. ~ f¡\ /c;:? ~ëv./ A(/é;. ~--~p/e~ <::;4. 5cale/~ ;?Q:;O' Dat~:A.,/4' ð7 D9?'n bY"., -I. ,~ Approved by: (./~;;:~ c. ~~.e:R ~jed No. Drawing No. E::- 8? - /.>G,. of _ ~~:esn~ ~~~O~:: . · - BSI( & Associates Chemical laboratories ,. ¡'..,...... '!. ,,", ".,' 1414 Stanislaus Street * Fresno, Caljfornia 93706 * Telephone, (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892247-1 Report Date 7/21/89 Sample Type Soil Sample Description 1610 hrs. W. Wall of Island Exc. at 3' Date Sampled Date Received 7/19/89 7/20/89 Date of Analyses 7/21/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit " (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA B020 TVH-EPA B015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting )70489 - e BSI< & Associates 'Chemical laboratoriès .' ;..... .::~. .' 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892247-3 Report Date 7/21/89 Sample Type Soil Sample Description 1710 hrs. S of Island at 8' * Date Sampled Date Received 7/19/89 7/20/89 Date of Analyses 7/21/89 \ II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.03 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting * Above Sample Description Should Read: North of Island at 8 Feet Below Grade 070489 e e .- - - BSI( & Associates Chemical Laboratories , ": ~ ,.~ - '. 1414 Stanislaus Street * Fresno, California 93706 * TelephoM' (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892247-2 Report Date 7/21/89 Sample Type Soil Sample Description 1700 hrs. Date Sampled Date Received 7/19/89 7/20/89 * s. of Island at 6' Date of Analyses 7/21/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... 0.03 0.02 Toluene ................... 0.44 0.02 Ethylbenzene .............. 0.06 0.02 Total Xylene Isomers . . . . . . 0.27 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting *Above Sample Description Should Read: North of Island at 6 Feet Below Grade 070489 -'-. - - - B51(· & Associates Chemical Laboratories , ,- . . " .:~\. . :.; ~,; ..... ..;'.... 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892247-4 Report Date 7/21/89 Sample Type Soil Sample Description 1750 hrs. 5' E of N. Disp. at 6' Date Sampled 7/19/89 7/20/89 Date Received Date of Analyses 7/21/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... 2.9 0.02 Toluene ................... 8.5 0.02 Ethylbenzene .............. 10 0.02 Total Xylene Isomers ...... 19 0.02 Total Volatile Hydrocarbons 1400 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DLR-Detection limit For the Purposes of Reporting Gh~~ QAjQ s~pervi i70489 - e BSI( & Associates ." . c-"' ~. . Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan &' Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 0950 hrs. NW Corner of Exc. at 10-1/2' Lab No. Ch892260-1 Report Date 7/24/89 Date Sampled 7/20/89 Date Received 7/20/89 Date of Analysis 7/21/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mg/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M NO-None Detected BOl-Below Detection limit DlR-Detection limit For the Purposes of Reporting ~~+f}~ QA/ Supervi R070489 e e BSI(& Associates ..... ,,"", ...~ .' -,.., . Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892260-2 Sample Type Soil Sample Description 0940 hrs. SE Corner of Exc. at 10-1/2' Report Date 7/24/89 Date Sampled 7/20/89 Date Received 7/20/89 Date of Analysis 7/21/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting R070489 e e ... ~ " " ...." . ': BSI( & Ass~ciates _.. .<; to,,' " '". .... ,," ~":';"ð'; .. ,.. " .,,"'" Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892260-3 Report Date 7/24/89 Date Sampled 7/20/89 Date Received 7/20/89 Sample Type Soil Sample Description 1055 hrs. Backqround #1 at 3-1/2' Date of Analysis 7/21/89 Soil Analyses for Total Organic Lead Compound Results Detection (mgjkg) Limit (DLR) Total Organic Lead . . . . . . . . ND 2.0 Method: DHS ND-None Detected BDL-Below Detection Limit DLR-Detection limit For the Purposes of Reporting R070489 e e'" '" ,.1 " 'BSI( &';ssociates ", " :.. f '~''''.': ." .", . ~..~ ."'~: ..~' '\' ~::~..,. '.. ,',: . ,¡ ~:-!,-: I' ,:!" Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892260-4 Report Date 7/24/89 Date Sampled 7/20/89 Date Received 7/20/89 Sample Type Soil Sample Description 1115 hrs. Backqround #2 at 1-1/2' Date of Analysis 7/21/89 Soil Analyses for Total organic Lead compound Results Detection (mgjkg) Limit (DLR) Total Organic Lead ........ ND 2.0 Method: DHS ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting R070489 ·.-....---.---~...._'" ., , . " e e ..:'." . 'I '17.- . <" .- BSI( & Associates ./ .;.". ':. . ',. ..,;0- . Chemical Laboratories 1414 Stanislaus Street * Fresno. California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892260-3 Report Date 7/24/89 Sample Type Soil Sample Description 1055 hrs. Backqround #1 at 3-1/2' Date Sampled 7/20/89 Date Received 7/20/89 Date of Analysis 7/24/89 Soil Analyses for Total Lead Compound Results Detection (mgjkg) Limit (DLR) Total Lead ................ 53 1.0 Method: EPA-7421 ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting Gf~~ ---- QA,4 C Supe . r L· ~ :.' .. ,7 '2 ï ",/ " ~ ~~d, ~. Inorganics Supervisor R070489 _.0---:--- "~..'. "'-:---.-. .l'. ...... .' ..' ," .'. .... .. ..... I . ........-...... ....... " .' ....... .: ,... .' '....... I '. ....e',::"·.:. ' ,.:',: .::~'..,:~~... t.' . ".0..."..,1. ;'" "·'o.'~· ,/ I , "- ' ,. '. . . . . . . .'" ..... "!'5J,#Ji? )"'!~~i'Èh~¡',!,;~~i%~~):;;,;.,;i¡~. '. . .:' "...:\ , . . ;.,; . .' "S'; ,..';',' "'~.;~..'~:.:" .." .,,.. ;, .'., . ;"":~'.~>-;"'.' >'''~''':iB'' ' ,:!, ~I~t .'<1' ",' '~',.""'- ,.,'," .~"."."", . ~ "J,n;";'"f;"I~"';"Y' 0 .- . ".. - - ... _. , . ........ ." ,- . ,,... --,t,;.-:!i-:-............. ;'." , " . t.· ......'.' ¡..:. -.r ...~ . . ' . & Associates Chemical Laboratories 1414 Stanislaus Street .. Fresno, California 93706 .. Telephone (209) 485-8310 .. Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892260-4 Report Date 7/24/89 Date Sampled 7/20/89 Date Received 7/20/89 Sample Type Soil Sample Description 1115 hrs. Backqround #2 at 1-1/2' Date of Analysis 7/24/89 Soil Analyses for Total Lead Compound Results Detection (mgjkg) Limit (DLR) Total Lead ................ ND 1.0 Method: EPA-7421 ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting R070489 i? v~-~ ~ f QAj Supervis ----- ~;rd~ti- Inorganics Supervisor K'1t ^ Z A N Enwlronm._n,.' FI.ld r.,rlnV end Sampling S".i:I.1ÎI.d Fu.ì $..".g. Studl.. n_ LabÒ;aìo,y ŠÕUI j.~,jng - -. --- šollì Engln..ii;'g - - . - .u__ . o.oiechnÎca,'ñwest,,,.fions n. Printed Name SAMPLE NO DATE '-11 r¡ p, '1 I "'7 / .-- ~ --.'1 '-I I--- I--- f-- - RELlNJ3.~ISHE? ~'(,// / i!í. '/ fÍ,¡.19/¡, >/.//7;:-" s,~~ure " i, 'Ú" ,:-- . 'u'\·I/I Prlntp.d Name Y:~/(:/'17/} 1\' "/J" " Company RELINQUISHED BY Signature Printed Name Company ¡. & AS~OCtATES Cllë:iirl úf vusIody Recora --- - _...~- -..--.-. --- ~ ~ 'I rl C~(L DATE-1._____{__~~ _ PAGE ADDRESS KRAZAN & ASSOCIATES, INC, 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 (209) 291,7337 PROJECT }::.~. (=')",.) . SAMPLERS (SIGNATURE) / J ie/'Uh( I A ( i' " ',," 0;,^ \~''- ~. ~j'Y '-~.:.:, 1 '-"" PLEASE NOTE Samples No's. 2 \ _ (~ ~ _. 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OR STORAGE REOl.IREMEN.'!S·· \'. .... /2 c( H~~'~;J< ..... , . , D7;)[/ ~T/A'- ""':s~F\?;<;, .;, "J / \ ¡.; $0 .. " ¡ i:.~":~ '.' ",,.,' ~~."~ OF en a:: UJ z ~ z <:) U LL <:) a: w m ::E ~ z I ((þ~ J /-) 0- L (,rJ j (:.) .~-- ~-- --~ .. DATE TIME TIME )/)I( ('.: Ii..· .r. I ,- /'Jt( Î.1 ., , '. - OBSERVATIONS' COMMENTS ,. '. . . ; _;;''' I ", G' c) I C...·> / / /..# . , '. ;~~. .. ~è·..·, , ..,~.. .-<~ . .. . .. ., 'j '~';""' .(c: ./ ',' , ~':~1 :. ~ ",\ 'I J .' .' " M ;t L g(-t' t øt::; --~~ i h. It /\ ¿ A ¡~ & A~~OcIATES fn.',onm,nl.I f,.ld r..llng and Samp/jng Speel.II,ed fuel S.'IN'- Slud'" hboll'Ofr So'" ,..,411, Sol'. ,,,,'ne.tlne Geol.cltnlc.' In....lIg.IIon. - -- .---------.. _ _ --- _.- --.. íÎ Cllêlill of \JU~loay Recora DATE ~Zo...::-89 ::~t:)~, . '~{~'1 :' : . PAGE _.L OF _I-- ~~ . '. '< , .. .' , L...;.,..; '..; ".. ;: ~,' 1 ,. ..' ·1 . " ~. , I 'i . -" '~ I '] .. ADDRESS KRAZAN & ASSOCIATES. INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 (209} 291-7337 - ffi ~:~~~~~S¡SIGNATUAE~UC-%~_-~-- i h ~ Printed Name ._W^LT·;-'ß~_ LtÇ,\Ç"e:~-'::_______._._ j ;~ ~ DATE TIME LOCATION ......-.-" . N¡¡Z~~~~~ ~,;~& -'.- . S! f (..,,,·,?:,Nf,I{.(! (6 (~~Gec'~Nv~.L __ __ ..___! _~_.,.,.. -'.1 !~_ DJ}c.1S. G.~~t~º__±t Z- __ · '. .. '. .'. t' ,._. .~.~.' ,,-..ß· .:\ . ~ /'t·J.G{Q·~: . ~ ~ ç :: ·~;~3·::;.· .... ! . ~ OBSERVAT~N$i ... .' '. /~ . ..j u.. COMME~r~n,...:-:·· ~i1.' i PRlOáI1¥ -] _ 5:;Yc..J:: ..~. .... -- --g-t-f:-~ , ~ 'O~ .". '..."... I ,_., ~T ~=~=!º/~.iP~:t~:; .~'~ \:..¡.~./~ , ~ '3.1(2-( :;)~ L' . .: ',;, - -, "'-.;:)/- f/.,.,·~.,t¡:.·.>.··'.:':'·· .~. -_. ._\....=_j~ .~. >,' . :) ..:' <.?..;..,'.,:\. .....-; ~,' . ,. . ~- ': ~~:' " SAMPLE NO 5- ~. on 1.___._. _.. -- ~,--~---- (·l(" ¡;~.? 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JIME-- ~;Jb\~.HIPME~ili£/, OR STORAGE REOUIREMI¡t'JS~' . . ::~~~;:O "' -~=::tiAi'-- ::~::J~¡~:O-~::::-- OA Ti-- - ~f.foY~~.ij,,;,;.¡.ii""¡- DA;¡ -- 2 L{ 1-Jß.~f~. / ~~·,~:-.~7-~- ,~orJ t~~1~f Signalure . ·".._"J..··.(I ÞG 'A"'~J.,. ~r\''¡¡'''' '.__,_____..._,_____ iïM'Ë-'- .___._....________ 'TIME-- S..~.f.v~~r5· ';¡~rr\~ TïME---' ~ v~··· ", '. printe/~a!')~1C m~ ¥£ ~:. . . ....,---- I) Co,; : . ~ompa~y___.___ ' R;lI~~OAIË-- M& ....~¡;... Si~"a'Je .' .;_'7' ?£~t.F. . V<I tlVf!L.... 'tI?P< TIME P'il:tp.d Name d- JJ l<Ø\~W / t(5Ý£ U' Comr,any 1':;.00 RELlNOUlSHED DY -- -..------.--.--------.. RECEIVED BY ....__...___ ___~__n___ ~___~____ Sigllalure ----..--- -.-. --.---+--------.- --------- Prinled Name DATE "..-...------- -.--.------------ Signature Signature TIME - ..--.-. P'inted Name l...-...-.-.. _ no. ..--... Company ---.-...--. -- .,.-- Printed Name __ ___.. ~_._._ u._.. _ ._._.______.___. Company ---,--- _._-----+..-_._----------~- --0-'0- _...__ _.. ----- -.----. . ------ DATE RElINOUISHED BY DATE ---_._--~------ ----.-- Signalure Signature ------- TIME TIME -_.-----.--- ---- Printed Name Prinled Name --_._-_._.._._-~_._----------- Signalure Printed Name ---.-------- Company -._------ -- " .I .: ,¡ ,.' ~' ¡ . to/. .,1 " ,( '. · .....- .¡' " · , +. "'0;:,. -J<_... "-1,-...- J ------.------, ~ - - -------... K R A Z A Ne & ASS 0 C I IT E S , IN C. Construction Testing and Inspection Geotechnical InvestIgatIons Environmental Engineering Laboratory Soils Testing Monitoring Wells July 18, 1989 Project No. E89-156 Chevron U.s.A., Inc~ Attn: Jim Sampson P.O. Box 5004 San Ramon, California 94583-0804 RE: Tank Removal at Chevron Station #9-1554 10 Union Street Bakersfield, California I:!\T'fRODUCTION In accordance with your authorization, we have completed the sampling of soils and subsequent chemical analysis at the above-referenced project site. The sampling took place following the removal of two 10,000 gallon and one 5,000 gallon underground gasoline storage tanks, one 550 gallon waste oil storage tank, and six product dispensers. The original service station building and al1 other station facilities were existing at the time of our sampling. The removal and sampling took place in order to replace the existing underground storage tanks ,yith new double-walled underground storage tanks, add an additional product dispenser island between the station building and the south dispenser island, and to extend the western dispenser island, SITE DESCRIPTION The project site is located in the southwest 1/4 of the southwest 1/4 of Section 32, T29S, R28E of the Mount Diablo Baseline and Meridian. Specifically, the subject property is located at the northeast comer of Union Avenue and Brundage Lane in Bakersfield, California. The site covers approximately 1/2 acre in area and is square in shape. It is bounded on the south and the west by Brundage Lane and Union Avenue, respectively. Commercial Main Office: Fresno/Clovis · 3860 N. Winery · Fresno, California 93726 · (209) 291-7337 Bakersfield (805) 393-2343 [J California (800) 233-5050 0 FAX (209) 291-5010 e e Project No. E89-156 Page No.2 property occupies the eastern and northern boundaries. At the time of the tank removal, the site was entirely paved with the exception of the tank pit excavation, and dispenser islands. ç;:. ---"" GEOLOGIC & HYDROLOGIC SEITING The topography of the site is freshly graded and relatively level. The site is located within the San Joaquin Valley, which is situated between the Sierra Nevada Mountains and Coast Range of California. The San Joaquin Valley makes up the southern portion of the Great Central Valley. Unconsolidated materials found in the vicinity of the project site are generally composed of alluvial deposits made up of sands, silty sands, and silts with some minor clays and gravels. The source rock for this material is primarily granitic and metamorphic rocks located in the Sierra Nevada Mountains. The deposition of these alluvial sediments began to take place in the Late Cretaceous age ODD - 65 million years before present). The majority of the San Joaquin Valley was covered at that time by epeiric seas. Epeiric seas were shallow salt water bodies which were generally situated on the continental shelf or within the continental interior (inland sea). Sediments currently at or near the surface are believed to be of Quaternary age (2 million years old or younger) alluvium derived from the nearby Coast Ranges. Major faults in the \"icinity of the project site are situated along the eastern edge of the Sierra Nevada Mountains and the San Andreas Fault Zone, The San Andreas Fault Zone is located along the Coastal and Diablo Ranges to the west. According to the 1973 photorevised USGS Gosford, California, topographic quadrange map, the project site is located at an elevation approximately 395 feet above mean sea level. The project site is located within the San Joaquin Valley Hydrologic Study Area, which is primarily an arid and semi-arid environment. Within the study area, 39 groundwater basins have been identified. Storage capacity is approximately 570 million acre-feet; useable storage totals 80 million acre feet. Fresh-water bearing deposits, comprised dominantly of a11uvium, have a maximum thickness of 4,400 feet. Specifically, the project site is located in the Kern County Basin, which is bounded On the east, south, and north by the Sierra Nevada foothills, Tehachappi Mountains, and Coast Ranges, respectively. This basin is experiencing an overdraft problem in which the static groundwater levels are increasing in depth due to extensive pumping of the upper unconfined aquifer for agricultural use, The depth to groundwater below the project site may vary seasona11y. According to the plates of the "Kern County Water Agency 1987 Water Supply Report, Improvement District KRAZAN & ASSOCIATES, INC. e e Project No. £89-156 Page No.3 Number 4" of May 1988, groundwater in the vicinity of the project site can be interpolated to exist at a depth of 200 feet below existing grade. SAMPLING & LABORATORY TESTING PROTOCOL Sampling was conducted under the guidelines established by the Kern County Environmental Health Department, California Regional Water Quality Control Board, the California State Department of Health Services (DHS), and the United States Environmental Protection Agency (EP A). The sampling was accomplished under the direction of Ms. Turonda R. Crumpler of the Kern County Environmental Health Department. Relatively undisturbed samples were obtained by the use of a hand auger or from a backhoe bucket by pushing stainless steel tubes. Aluminum foil was placed over both ends. Each tube was then capped with tight fitting plastic caps and secured by electrical or duct tape, All samples were labeled and placed in a cooler chest which contained synthetic ice. Samples were then transported under chain of custody protocol to a state approved laboratory for analysis. Samples obtained from below the removed gasoline storage tanks, dispenser islands, and adjacent to the product lines were analyzed for the detection and concentration of benzene, toluene, ethylbenzene, xylenes, and total volatile hydrocarbons by EP A 8020 GC/PID and 801S(M) GC/FID. The samples taken from beneath the waste oil tank were analyzed for the presence and concentration of oil and grease, total organic halides (TOX), and total lead, FII\TDINGS OF THIS II\'VESTIGA TION The tanks were removed by California Petroleum Equipment on July II, 1989 under the supervision of Mr, Bryce Ruschhaupt. The removal process was observed by Ms. Crumpler of Kern County and Mr. Bruce Myers, our Project Geologist. At the time of tank removal, the soils from 2 to 6 feet below the bottom of the tank were noted to be light to medium brown, well graded quartz sands with minor pebbles. The soils at 17 foot depth were noted to be red brown silt with minor sands. For the exact location of our sampling, please refer to Figure 1. For the results of chemicals analysis, please refer to Table I as follows: KRAZAN & ASSOCIATES, INC. e e Project No. E89-156 Page No.4 TABLE I Concentration of Petroleum Constituents in Soils Tank Removal Soil Sampling Chevron Station 1554 10 Union Avenue Bakersfield. California July 1989 (Concentrations In parts per million) Sample Depth Below E th y 1- Total Oil & Number Grade Benzene Toluene benzene Xvlenes TVH Lead Grease TOX 1 a 17.5 ft l\1J) l\1J) ND ND ND 2a 17 ft ND 0.03 ND ND ND 3a 21 ft ND ND ND ND ND 4a 17 ft ND ND l\1J) ND ND 5a 21 ft 0.03 0.64 0.51 7.7 53 6a 17 ft l\1J) 0.02 ND 0.02 ND 7a 21 ft l\1J) ND l\1J) ND ND Sa 17 ft ND l\1J) ND ND ND 9a 21 ft l\1J) NT) ND ND ND lOa 17 ft l\1J) !\1J) ND ND ND 1 1 a 21 ft l\1J) l\1J) ND ND ND 12a 17 ft l\1J) 0.02 :NT) ND ND 13a 21 ft !\1J) !\1J) I'm ND ND / 1 b S ft 20 260/ ND 2b 12 ft ND 310¡'/ND 3b 3 ft 4.4 Ý 6.6 10.1 2.5 2700 4b 3 ft 2,1 ,,/ 25 1.0 3.6 4000 5b 3 ft 0.11 0.87 0.27 2.5 15 6b NA !\'D 0.02 0.02 1.8 37 7b NA ND NT) ND 0.02 !\'D Sb NA l\1J) 0.05 ND 3.5 2.5 1 c 7 ft NT) 0.38 0.25 2.2 ND 2c 7 ft 0.09 1.3 0.67 5.7 ND 3c 7 ft l\1J) NT) ND 0.07 ND 4c 4 ft l\1J) ND !\1J) 0.09 ND 5c 8 ft ND !\'D ND ND ND 6c 4 ft !\1J) ND l\1J) ND ND 7c S ft ND !\'D !\'D ND ND Sc 4 ft ND ND ND ND ND 9c S ft !\'D !\'D ND ND ND IOc 4 ft ND ND ND ND ND 1 1 c 8 ft :NT) ND ND ND J\1J) 12c 4 ft 1\oTI ND :NTI ND ND 13c 8 ft ND l\'D ND ND ND TVH = Total Volatile Hydrocarbons TOX = Total Organic Halides ND = None detected at the detecti on limits noted on the certified analytical reports = Not analyzed KRAZAN & ASSOCIATES, INC. e e Project No. E89-156 Page No; 5 CONCLUSIONS Based on the results of this investigation, it was determined that concentrations of petroleum constituents exist in sixteen of the thirty-four soil samples obtained from beneath the project site. Six of the samples were obtained from the west end of the excavation from which the three fuel tanks were removed. Four of these samples showed trace levels of petroleum constituents. Although the limits of the petroleum constituents are not fully defined, it is anticipated that these trace concentrations pose no threat to groundwater resources. Six of the samples were obtained at depths of 3 and 7 feet below grade, beneath the north, center, and south dispensers of the west island. The three foot samples showed concentrations of petroleum constituents to be present, however, the concentrations sharply attenuated to very low levels with the next 4 vertical feet. Although the limits of the petroleum constituents are not fully defined, it is anticipated that the minor concentrations at 7 foot depth pose no threat to groundwater resources. One sample obtained from the east island at a depth of 4 feet below grade showed a trace concentration of xylenes. This concentration sharply attenuated to non-detectable levels within the next 4 vertical feet. Three composite samples were obtained from the excavated soils. These soils showed low levels of petroleum constituents to be present. The two soil samples obtained beneath the waste oil tank showed concentrations of total lead and oil and grease to be present. Total lead concentrations attenuated to non- detectable levels within the upper twelve feeL One of the samples was obtained from the east end of the excavation at a 21 foot depth in the previous location of the 5,000 gallon tank. The sample showed concentrations of gasoline to be present. The extent of this contamination is unknown, and is beyond the scope of this investigation. The potential for the impact of this contamination on groundwater resources appears to be remote in light of the great depth to groundwater. However, examination of the contaminants potential to influence groundwater quality is beyond the scope of the current investigation. LßlIT A TIONS The findings of this report were based upon the results of field and laboratory investigations, coupled with the interpolation of subsurface conditions associated with our KRAZA.'J & ASSOCIATES, INC. e e Project No. E89-156 Page No.6 samples. Therefore, the data are accurate only to the degree implied by review of the data obtained and by professional interpretation. The sample locations were located in the field by review of available maps and by pacing or tape measurement from existing landmarks. Therefore, these locations should be considered accurate only to the degree implied by the methods used to locate them. Chemical testing was done by laboratories approved by the State of California Department of Health Services. The results of the chemical testing are accurate only to the degree of the care of ensuring the testing accuracy and the representative nature of the soil samples obtained. The findings presented herewith are based on professional interpolation using state of the art methods and equipment and a degree of conservatism deemed proper as of this report date. It is not warranted that such data cannot be superseded by future geotechnical, environmental, or technological developments. If there are any questions or if we can be of further assistance, please do not hesitate to contact our office. CCW /DA/ej 3c Herewith 1c Kern County Environmental Health Attn: Ms, Rotunda Crumpler Respectively submitted, KRAZAN & ASSOCIATES, INC. c~+~ C· l.,Q~ Cynthia C. Wagner Environmental Specialist ~~ Dean Alexander - Geotechnical Engineer RGE #OO2051/RCE #34274 KRAZAN & ASSOCIATES, INC. A1 Art-1G:?X'+re::- LC2~~ ~ ~~I L- ~rv'/ t:7L-t7::? -- ------ --- . ~L- ~M~ lAG /7k2:1 r-i~ ~- . /e/~4::: i."-A 601. 0 ~ j ~ ~ A~G-~ ~~ .4V~ --_.-- - ~'. .-.- . --- --., - - .- . - - -- __¡d¿:~I~ ~·c- ____.________.__ ~ n ___. __ ______ _____. _.__~. ------------ J0~ 'þ-Ve 0,vd'_vv:?y h cSIt~·~~ Scale: I __ I I ":\--7 VA-r.:::~N Drawn by: C;'V..:::;::;? Project No. rf"~1 -··,':,:-:>1.0' Date: I -,q ~._~ /' ~.,. I Approved by: 'k-=:r. /" tv!. Drawing No. I of I -1~-4 lf1:r'A? ~~. ~ ~ KnAZAN & ASSOCIATES, INC. .-. - - . . 10 Ut-J!~ P,¿.'>..¡.L-t:O:"':'<';::;Fìe:LC:> c-~_ Fresno Vísalia Bakerstield Il----I . U·' . I ¡ ! . I 388 - I , = I ~:~;:~~c~~~~~:.~.._ L---J'--J:"":"- L-JCJDi ~ ~ .........= ~¡¡ker . "I ' = Sch \i~ ,'-. db " ~ tt . I' II " ¡~~:~e5' \~~==~- .. fl ¡:;(e~er\'OIf ~~".~, :: ,: ' =' ~' . c:2 \~~ r:J' .., i ':J ,', 1>8 ~ "\ I; , :;' ."~ e : ¡, :. ":-' _ : J . .. ~ IE' t n ~ t' IU' ~: ¡:.. .......:- ,,' r:; \':-; I ¡··-·········-'u '~, !: ' . ¡I' ........ .....~ ...... .. . :. . " ... l!...!..!..!......... . ....~. '--. 1';-. ,\ . ~"f.~'="r\'~lr " , I /';:'/' ~ ",!,' ...11 -', - ,...-::-= ", -." . - - 'i -,\ ... , I ....._j --...-1 '! . -' - - "', \..~- ~ :-"'1=:" '-": ·f;1 I ....J/ ,:-... .,¡.:.:.< "j:.:: . , ... F- " ~~~ , '\. ~ \ Vk:IJr-yY yir-~ ~: 7#.i?,ktJ,P,i:? 7Ã~ ~M u.s.<E;·5 //~c:;v'T' O1u/.=Psj ~~ ~,c// (T~) ¿J ~' ~ ~£4..V~ 76/"1/""/, ~/ð$ c:;q;re.o .'/7,5"4 ,Pßb~v~éO,' /7'~ 1/~73 ~~=r-! ~g- 15?4 VtROt{ ~u=: /Ý/ ~ L c; Sc.ale/~ ;21a:z::/ Date: v-k. <J D~n by: -" ,~ Approved by: {/~y ~ C. ~~E.I? ~ject No. Drawing No. -=-ð1- /'>G of /c? ~èv-J AVe. ¿::>.q~p/e~ C;4. .~ KRAZAN & ASSOCIATES ~ Merc.ed Fresno Visalia Bakersfield e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-1 Sample Type Soil Sample Description 1500 hrs. 17-1/2' below qrade W tank pit Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) , Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection Limit DLR-Detection limit For the Purposes of Reporting '0489 d ~~---- Q~: Supe or .. e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephon~, (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-2 Sample Type Soil Sample Description 1520 hrs. 2' below qrade W & Stank Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.03 0.02 Ethylbe~zene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting )70489 # .. e e , , BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno. Caliiornia 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-3 Sample Type Soil Sample Description 1525 hrs. Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 6' below Wend S tank Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylben,zene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Belo~ Detection limit DlR-Detection limit For the Purposes of Reporting <. Q~/~ - 70489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street .. Fresno, California 93706 . Telephone (,209) 485-8310 .. Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-4 Sample Type Soil Sample Description 1530 hrs. 2' below E end Stank Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... NO 0.02 Total Volatile Hydrocarbons NO 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting '0489 ~~ QA,é CV SU~·· . i or ~ e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-5 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Sample Type Soil Sample Description 1535 hrs. 6' below E end S tank Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... 0.03 0.02 Toluene ................... 0.64 0.02 Ethylbenzene .............. 0.51 0.02 Total Xylene Isomers . . . . . . 7.7 0.02 Total Volatile Hydrocarbons 53 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting .. a/AC?f~ QAjq,t Superv' so 70489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephon~, (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-6 Sample Type Soil Sample Description 1538 hrs. 2' below Wend center tank Report ,Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mg/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . 0.02 0.02 Ethylbenzene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers ...... 0.02 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 70489 ~~ p . ---- QA/QC Superv' ~...... 'organi Supervisor ~ e e -. BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-7 Sample Type Soil Sample Description 1543 hrs. 6' below Wend center tank Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit ( DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 EthylbeI1zene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting ~ )70489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706* Telephone, (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-8 Sample Type Soil Sample Description 1545 hrs. 2' below E end center tank Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/12/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit " (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylben_zene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting ~ d~rvisor )70489 e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, Caliiornia 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-9 Sample Type Soil Sample Description 1550 hrs. 6' below E and center tank Report Date 7/13/89 Date sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylben~ene . . . . . . . . . . . . . . ND 0.02 Total xylene Isomers ...... ND 0«02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting .. 70489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-10 Sample Type Soil Sample Description 1555 hrs. 2' below E and north tank Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit ( ÚLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbe~zene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting " Qa~:--- :J70489 ...... I . "..., "e' ".. .. .........~-~~-:-.~._-.. - . '. e' "':,' :'~,;,~,~:. ;::~:<.;~.':., ..:.... , :,\", . ' '. B51< ~ Åss~ciates Chemical Laboratories .. 1414 Stanislaus Street . Fresno, Caliiornia 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-11 Sample Type Soil Sample Description 1600 hrs. Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 6' below E end N tank Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting Q~'~ R070489 e e "~ ..:::.:; ~L~7(~"-'~ ¡--;:....~;:..... ".'. . . -,".; . . > .'1- .",'- :_" " , .. BSI( & Associates ..... ~. -J ',- -' . ~ Chemical Laboratories " 1414 Stanislaus Street . Fresno, Caliiornia 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-12 Report Date 7/13/89 Sample Type Soil Date Sampled 7/11/89 7/12/89 Sample Description Date Received 2' below Wend N tank Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mg/kg) Limit (DLR) Benzene ................... ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . 0.02 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M NO-None Detected BOl-Below Detection limit OlR-Oetection limit For the Purposes of Reporting QA4s:!g) R070489 "'H' "--';'.- ~"'~.-:-:---...~--"":":- '_ ^-~-" --....·-r·· "'-. ~ '. -. Î..- ." . '".1'.. -.: ,I -.,..... . ", . :e ',,'~ . ;'."'::''-'':''':. . . ' ". .;'..-.. ,.r.. :~' ...,"',... " ..." ~~ . ' ~ ", "t ,. .. BSI( & Associates Chemical Laboratories ~ 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 " Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-13 Report Date 7/13/89 Sample Type Sample Description Soil Date Sampled 7/11/89 7/12/89 Date Received 6' below Wend N tank Date of Analyses 7/13/89 .II Soil Analyses for BTXE and TVH II compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting R070489 . .. '·-;:"-:-<--·'C~.~~ "- - . -" ---"~~--' , -...;" '.' '. ~/ . .~ . '. : : ,._~~, '.. -'."'. .. :;.... ..~. ..1<'-- "",:' ....;..~; ..;*....)..;-. ·e>~·····: .' ,'..... " " .'\'¡. .: .-.," " ~ , ,'r . '_', . ,.- ,-'., .. B51< & Associ~tes ~ ., .-:,..... ,,' ',r. .: ,..'" Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 . - .-".~ .. .;!- . .. .. . .. Sample Type Soil 7/13/89 Date of Analyses Lab Number 2155-14 2155-15 Sample Description 2' below WI0 tank 1635 hrs. 6' below WI0 tank 1638 hrs. Results of General Chemical Analyses Compound Units Lab.No. Lab.No. Lab.No. 2155-14 2155-15 oil and Grease . . . . . . . . . . . mg/kg 260 310 R070489 J¡¡() Intrganics Supervisor I e e BSI( & Associates Chemica! Laboratories " 1414 Stanislaus Street - Fresno. California 93706 - Telephone (.209) 485-8310 * Fax (209) 485-ì427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Sample Type Soil Date of Analyses 7/13/89 Lab Number 2155-14 2155-15 Sample Description 2' below W10 tank 1635 hrs. 6' below W10 tank 1638 hrs. Results of General Chemical Analyses Compound· Units Lab.No. Lab.No. Lab.No. 2155-14 2155-15 oil and Grease . . . . . . . . . . . mgjkg 260 310 R 0701, B9 J¡¡}j In6rganics Supervisor e e·······: B51< & Associates Chemical Laboratories " 1414 Stanislaus Street '" Fresno, California 93706 '" Telephone (209) 485-8310 '" Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-14 Sample Type Soil Sample Description 1635 hrs. 2' below west of tank Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/89 Soil Analyses for Total Lead Compound Results Detection (mg/kg) Limit (DLR) Total Lead ................ 20 1.0 Method: EPA-7421 NO-None Detected BOl-Below Detection limit DlR-Detection limit For the Purposes of Reporting QAfi~:: J/#6 /' Inorganics Supervisor R070489 e e ." . -.. ",- -..". ".-., - .. . 1. " _ ~~ ... _ . . .. . ~ ~ '.'!" ,.. ;~ ~ .' ,- ~. , - ''''. - . -" BSI( & Associates Chemical Laboratories .. 1414 Stanislaus Street * Fresno, California 93706 ~ Telephone (209) 485-8310 - Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1638 hrs. 6' below west of tank Lab No. Ch892155-15 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/89 Soil Analyses for Total Lead Compound Results Detection (mg/kg) Limit (DLR) Total Lead ................ ND 1.0 Method: EPA-7421 ND-None Detected BDL-Below Detection limit DlR-Detection limit For the Purposes of Reporting R070489 Supervisor . ..~ .' . , .. " ~. ,._".' ",.....' ·.·······e~ . . ,..... " ,.............: " ":'" .. '.'.,." I ··e :.~ . ~. -.... ," < . . ~ . ~-": " '. . .- BSI( & Associates .. Chemical Laboratories 1414 Stanislaus Street ~ Fresno, Caliiornia 93706 " Telephone (209) 485-8310 " Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1635 hrs. 2' below west of tank Lab No. Ch892155-14 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/14/89 Constituent Unit Result Detection Lindt TOX mg/kg ND 0.2 ç;/#~- QA/ c¿:.'supe or ?--- :070489 ,~ ..:~.. " . .....' e' " . ,'" " . .... , . ""1' '.' - ':_~>"';':'~"'. ~ . ; . ~_:.: _.....~ ,-~._. " "\"'i'" '; , " . ,,'. ....._".. -, \. : ." . .. BSI(.& Associates "., ~,' ;- - - ¡ _ ~ .1 . Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1638 hrs. Lab No. Ch892155-15 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 6' below west of tank Date of Analyses 7/14/89 Constituent unit Result Detection Limit TOX mg/kg ND 0.2 t~~ QA/Q Super 1 or 1(070489 .. e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-16 Sample Type Soil Sample Description 1705 hrs. 21 below center disp. W island Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... 4.4 0.02 Toluene ................... 6.6 0.02 Ethylbenzene .............. 10.1 0.02 Total Xylene Isomers ...... '2":-5-.. 0.02 Total Volatile Hydrocarbons 2700 \ 10. / Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection limit DlR-Detection limit For the Purposes of Reporting ~ a1d~__ QA/6c Supe 'sor 170489 e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1745 hrs. 2' below N. disp. W island Lab No. Ch892155-17 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/B9 II Soil Analyses for BTXE and TVH II Compound Results (mgjkg) Detection Limit (DLR) Benzene ................... Toluene ................... Ethylbenzene .............. Total Xylene Isomers ...... Total Volatile Hydrocarbons 0.02 0.02 0.02 0.02 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDL-Below Detection limit DlR-Detection limit For the Purposes of Reporting 70489 " QAj e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, Caliiornia 93706 . Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-18 Sample Type Soil Sample Description 1738 hrs. 2' below S disp. W island Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... 0.11 0.02 Toluene ................... 0.87 0.02 Ethylben.zene .............. 0.27 0.02 Total Xylene Isomers . . . . . . 2.5 0.02 Total Volatile Hydrocarbons 15 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detect;on Lim;t For the Purposes of Reporting .. ~d~~ Qx2 c SUp v,'sor 170489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, Caliiornia 93706 * Telephon~ (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-19 Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Sample Type Soil Sample Description 1807 hrs. Composite SP. 1 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.02 0.02 Ethylbenzene .............. 0.02 0.02 Total Xylene Isomers . . . . . . 1.8 0.02 Total Volatile Hydrocarbons 37 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting .. #~~ QAj ~uper s r 170489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 '" Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-20 Sample Type Soil Sample Description 1820 hrs. Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Composite SP. #2 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) . Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. ND 0.02 Total Xylene Isomers ...... 0.02 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting .. )70489 e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892155-21 Sample Type soil Sample Description 1830 hrs. Report Date 7/13/89 Date Sampled 7/11/89 Date Received 7/12/89 Composite SP #3 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... 0.05 0.02 EthylbeI).zene .............. ND 0.02 Total Xylene Isomers . . . . . . 3.5 0.02 Total Volatile Hydrocarbons 26 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-BeLow Detection Limit DLR-Detection Limit For the Purposes of Reporting ~ ~~~. QAj '~per or 070489 e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-1 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 ;ample Type Soil Sample Description 1045 hrs. 6' below S Disp. W Island Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene ................... 0.38 0.02 Ethylbenzene .............. 0.25 0.02 Total Xylene Isomers ...... 2.2 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 801SM ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 3489 ~ e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone,,(209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1050 hrs. 6' below C Disp. W Island Lab No. Ch892170-2 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . 0.09 0.02 Toluene . . . . . . . . . . . . . . . . . . . 1.3 0.02 Ethylben.zene . . . . . . . . . . . . . . 0.62 0.02 Total xylene Isomers . . . . . . 5.7 0.02 Total Volatile Hydrocarbons 21 10. Method: BTXE-EPA 8020 TVH-EPA 8015M NO-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 70489 ~ Q IQC S;;-#ì~or e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-3 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 3ample Type Soil Sample Description 1055 hrs. 6' below N Disp. W Island Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene ................... ND 0.02 Toluene ................... ND 0.02 Ethylben~ene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers . . . . . . 0.07 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA B020 TVH-EPA B015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 3489 < e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephon~ (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-4 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 3ample Type Soil Sample Description 1105 hrs. 2' below East Island Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . NO 0.02 Toluene . . . . . . . . . . . . . . . . . . . NO 0.02 Ethylbenzene . . . . . . . . . . . . . . NO 0.02 Total Xylene Isomers . . . . . . 0.09 0.02 Total Volatile Hydrocarbons NO 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting I )489 e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-5 3ample Type Soil Sample Description 1125 hrs. Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 6' below East Island Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II compound Results Detection (mgjkg) Limit ( DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylbenzene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015H ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 0489 " e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephon~ (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-6 Sample Type Soil Sample Description 1145 hrs. Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 2' below Line Sample Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . NO 0.02 Toluene ................... ND 0.02 Ethylbenzene .............. NO 0.02 Total Xylene Isomers ...... NO 0.02 Total Volatile Hydrocarbons NO 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting or; r¿~~ QAj Supervi ---. '0489 e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-7 Sample Type soil Sample Description 1200 hrs. 6' below Line Sample #1 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylben~ene .............. ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting ~ ft4/~~ QAj rsuperv . '0489 e e 651< & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone ,,(209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-8 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/B9 ,ample Type Soil Sample Description 1205 hrs. 2' below Line Sample #2 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylbenzene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers ...... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M NO-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 0489 1r.~/'~ ---/ QAj, C Supervi e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-9 3ample Type Soil Sample Description 1305 hrs. 6' below Line Sample #2 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylben~ene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting 0489 ~ QA/t C supe~ e e BSI< & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone,,(209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Lab No. Ch892170-10 Sample Type Soil Sample Description 1310 hrs. 2' below Line Sample #3 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylbenzene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting ~ QA~~1l- 70489 It e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1320 hrs. 6' below Line Sample #3 Lab No. Ch892170-11 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mg/kg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylben~ene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons NO 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDL-Below Detection Limit DLR-Detection Limit For the Purposes of Reporting 0489 ~~~. QA/ C 'superv i ~ e e BSI( & Associates Chemical laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1350 hrs. 2' below Line Sample #4 Lab No. Ch892170-12 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/13/89 II Soil Analyses for BTXE and TVH II Compound Results Detection (mgjkg) Limit , (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylbenzene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers ....... ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting 70489 ~/44 ~. QA~ C supervþ e e BSI( & Associates Chemical Laboratories 1414 Stanislaus Street * Fresno, California 93706 * Telephone (209) 485-8310 * Fax (209) 485-7427 Krazan & Associates 4816 E. Shields Fresno, CA 93703 E89-156 Sample Type Soil Sample Description 1355 hrs. 6' below Line Sample #4 Lab No. Ch892170-13 Report Date 7/17/89 Date Sampled 7/12/89 Date Received 7/13/89 Date of Analyses 7/14/89 II Soil Analyses for BTXE and TVH II compound Results Detection (mgjkg) Limit (DLR) Benzene . . . . . . . . . . . . . . . . . . . ND 0.02 Toluene . . . . . . . . . . . . . . . . . . . ND 0.02 Ethylben?:ene . . . . . . . . . . . . . . ND 0.02 Total Xylene Isomers . . . . . . ND 0.02 Total Volatile Hydrocarbons ND 10. Method: BTXE-EPA 8020 TVH-EPA 8015M ND-None Detected BDl-Below Detection limit DlR-Detection limit For the Purposes of Reporting " ~/* QA,!- C Superv' 70489 I KHALAN & ASSOCIATES ~........-"" 0.,. ........ 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OF CONTAINERS M~THOD OF SHIPMENT f .' l~^.I ~.. , SPEðlÄL SHIPMENTIHANDWNG OR STORAGE REaUIREMENTS : ). ..} ~' , ~,'( . J ! ~i ·hr -riA .. ~ . - ,-. ., , \ ~ ,. þ. ;: ~ c',' ,. , , '. I K R A L A l~ & A~~Ot.;IAThS 'C..di t. of \JU~ lOay Recora 7) II h', PAGE óì 0-;[, ¿ I / >. '7- .; ~!!!:1:f!{izs:~nJ~r.~L_.____---.--.-_-··.- ...... šõiiI.§!..~_ ~_1ii"'Ug.tlon. _ DATE N JCJC) .. " PARAMETERS OTHER ...... , ADDRESS KRAZAN & ASSOCIATES, INC. ~ " en 3860 NORTH WINERY a:: UJ FRESNO, CALIFORNIA 93726 z . (209) 291-733/:;ï?lf It:) ¿ '" W --' ~ , '" '" '" 0 PROJECT -'- :z~ ~ u u z z OBSERVATIONSI . «i Z Z UJ '" 0 ::>' z ~ :J: SAMPLERS (SIGNATURE) , :::. ..... UJ'" « ~ « <>. z U COMMENTS· z UJ --'z 0", '" 0 « ~, u.. '" «- 00 UJ 0: 0: 0: 0: 0: :z 0 : -jJp L(/t H/;}iM --' .....M --' '" 0: CD ';;(0 0 0 0 0 ::> 0: ~ ::>~ UJ « .....0: « --' UJ U. > 0 a: --'- '" UJ UJ« æ~ UJ w UJ :J: ..... -- ..... u. 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Signature Signature Signature Si9(ÿ, 0 ~ TIME TIME TIME "ni,/, y ~ ( TIME ~ Printed Name Printed Name Printed Name Pri?<ed Name, __ / ~ 'l1// '/ }lIS. /Ælrn Company Company Company Company ,~7 t.. ~ , ~,. : ¡,'I .','1 '. ! ~ ,;,~ :,:)\ " -,' .,'. j'::) ''1'il " ~ r ' "'.! 1 KRAZAN & AS~OL:IATES f"f"ronm.~'" fl.ld ,..lIn, and $ampll"v ~¡;.ïif~I~!.U.!~!e;;!P! siúdiõÎ labonl'!'!l 50110 ,..IIn, ~!-':.~~Oüg¡¡io;,. - ADDRESS KRAZAN & ASSOCIATES, INC. 3860 NORTH WINERY FRESNO, CALIFORNIA 93726 ~ 84· tS ~ (209) 291-7337 _ __ _ ---- PROJECT '-"" SAMPLERS (SIGNATURE) /1/ '-'í~--,( :1..(/ :~(/ ,Í/4M~ IJ..LJ f- ¿ , :--7;;;>/~. éO ::. 0-- U) Z w ""- ..J 0--'" ..J U) ~ =>~ w "" ..J- U) w W ..J U) W a:: :;; O..J 0 t!J CL"" "" :;; 0-- :i: "" 'W CL ..J '-' g::;; 0-- 0 Printed Name Signature j Signature TIME TIME Printed Name Printed Name Printed Name Company Company Company Clldir I of \.Ju?loay Recora PARAMETERS ~ U) U) \U) :;;;3 ~ \\\~ ~ Jcn Z Z Z ~z ""~X"" "" oo~~ ~ á? g:~~o a 0 ~5 ffi~ :I: ~ ~ ~~ 8~ ~ ~-~- -O..J...J ...J-...JN ~~~~ ~~~~ ~ (.j d .;J '-I <.) 'X 'X 'I. ^ Y , )0. X '£ 'Y.. 'f.. ~ }. ~ DATE ¿) .ì ..., .~ ", oJ DATE /' \ 7.. . BCl PAGE OF~ SAMPLE NO DATE TIME I LOCATION \ C. I~ ;?S;;'\;. 1()L.f·\ k' 6\=low5rh<..? J1"v'f'1I7 '"2 c.- II I D~ Ó /~. \"j í J ,..,t..J (¡), \r b,\ 11<-1 I_J f ') c.. II \D'55"lJ' 1"'/0"'" N í)t:s.:' \1 Y,'; .11/.1 .. / c. I I II ó <" en 1 Is, 4 ,_ .") .......:' C. . , ',-z.~ ~A c.. \. Is") A k}J (c C, . - 11 LI.~ L-(/-J C - :::>. f -t!:.t 'J C- 110() Il-r-N£ :-:;MÚ)LCP~ P->c.. I, \1""'5 L'tNl:: '::;"'''II:'LIt'*l 1"1 t ' I I ~.)"~ I T!v ( :~ <\1 'Ll. c:t- Z \ () (I, ' I 1:>')\0 I/r~.c ~A,...\i')L1 t*~ \ Ie.. ' \ '5'l.nlbhllL -;:;AP\PL-Çti.~ 170. I' I")£;o II....,'" -:5:A "",)/¡;- T:!Lj /~Î "/ \ --S5Ç~ UJ,;" < ANIPl£#Lj RELIN~.1'H~p- f ~E_ RE~JE~_~ /J DATE RELINQUISHED BY I/~V' / .Æ~ ~..n; '-#1//.'\ F~A 0' / /~sr F íí '7k;:~ í! ¡gni!#ure - "-1 7 _ )313 s)9.?tuíL h ~ ,z., r.>-. ï ;:rtJ¡ Signature l ;tJ,4L T £,,c.:. IlIbt-e TIME nR 11l/i'. ¿' I"B¡!J /Ö;.; ¡"tiME ~rlnJ.w Name e: ^ Prin~j.~,/ 2.n/ Printed Name Ko /\,7Ad' U~. £;.JJ ~ /0.;£///1':5 Company If' 3ð Companyl-. Company RELINQUISHED BY DATE RECEIV~BY DATE RELINQUISHED BY D I Signatú" OTHER en . a: w Z ..J f! 0 z z OBSERVATIONSI w U) 0 :I: Z U CL ..: COMMENTS 0, a:: :;; I.L a a:: => a:: 0 "" g,... W LL >- 0 a: w :I:'" 0-- .... 0-- LL ..J '-' .>0 U) 0 0 W ..J « f ,IV> ~ ¡¡; a:: CO "" 0-- ~o X 0 :E 0-- ~ 5 0 a:: ..J => 0 :I: => :I: 0-- 0 CL 0-- '-' z \ ,. \ ..¡ ~ , \ '..) \ RECEIVED BY \ tZl r<; rd 0 (J \ (0' ï2.. f lOW \ Zl , ' (n , I . \ 7_ I I- I &1 I' I /' 01, I 7.1' /f I l I ¿I ~ DATE )~~ TOTAL NUMBER OF CONTAINERS METHOD OF SHIPMENT ,.¡ " '. ., I 1 ,. ; 1 Signature ,i,j ¡ 'I. 11., r Ä/f" {'U S~I!Ç1ALSHIPMENT.IH.ANDllt~G' ...'....,.. "" .' OR STORAGE REOUIREM12E .TS Ø:" . . ':,;' .' L..I :'. '. ."j " :.: ,/.,' £71-112-:··,-, :''''..:. .' . :. iV <:;<:'1 TIME TIME Printed Name "- DATE Company RECEIVED BY (laboratory) DATE Signature TIME TIME . . Printed Name Company e e Chevron === Chevron U.S.A. Inc. 2410 Camino Ramon, San Ramon, California · Phone 14151 842-9500 Mail Address: P.O. Box 5004, San Ramon, CA 94583,0804 ~ <Á~';J~ !::y}' ~ "/.·.'5\ /Ii/ APR 5 1990~C~~'\ \§. RECE/VEll Marketing Operations O. Moller Manager, Operations S. L Panerson Area Manager, Operations C. G. Trimbach Manager, Engineering March 30, 1990 "",;: '~~" (ì:;:;¡-¡-.,;P; .' , -----~. Flora Darling Kern County Department of Environmental Health Services 2700 M Street, Suite 300 Bakersfield, CA 93301 Re: Chevron Station #9-1554 10 Union Avenue Bakersfield, California Dear Ms. Darling: On behalf of Chevron USA, Inc., Dames and Moore has prepared the enclosed Preliminary Site Characterization Investigation for the above referenced site. The investigation was conducted at your request following the review of analytical data from samples obtained during a construction project at the site. The The purpose of the investigation was to determin~ whether hydro- carbons were present beneath the site. As indicated in the report, a total of three soil borings were advanced at the site. Hydrocarbon constituents were not detected in any of the samples analyzed. Based on these results, Chevron plans no additional work at this site. If you have any questions or require additional information, please call Lisa Marinaro at (415) 842 - 9527. Very truly yours, D. Moller By d)lOG \"Y'tOJVl'V[CGGU Lisa Marinaro West Central Engineer e e !.§)~-Œ;>C (.:./ ~~CD i::/ ~?\\ ~ ~.... \\.~~~t~ ,---' .- .. .. -, '/ Preliminary Site Characterization Chevron Station #9-1554 10 Union .:\.venue Bakersfield, California For Chevron USi\ Project No. 16000-232-044 m> MAR 29'90 ~ DAMES &. MOORE e _ DAMES & MOORE - e A PROFESSIONAL LIMITED PARTNERSHIP 1320 EAST SHAW AVENUE, SUITE 110, FRESNO, CALIFORNIA 93710 (209) 222-7892 FAX (209) 222-1937 March 1, 1990 Chevron U.S.A. P.O. Box 5004 San Ramon, California 95001 Project No. 16000-232-044 Attention: Ms. Lisa Marinaro RE: Preliminary Site Characterization Chevron Service Station #9-1554 10 Union Avenue Bakersfield, California Dear Ms. Marinaro: In accordance with your request, Dames & Moore has completed a Preliminary Site Characterization (PSC) of the Chevron Station located at the intersection of Union Avenue and Brundage Avenue in Bakersfield, California. The following report presents the findings and conclusions of Dames & Moore's study. We trust this report satisfies your current needs. Should you have any questions concerning this report or if we may be of additional service, please feel free to contact this office. Respectfully Submitted, Dames & Moore /V~ /j';~ ,/ c___ / . { RIchard Johnson, RG Staff Geologi ~ Jeffrey S. Palmer, REP Senior Environmental Scientist \.,FfICE~ \'('t""!{U'\\'Jf)E e DAMES & MOORE e A PROFESSIONAL LIMITED I'ARTNEI!SHIP TABLE OF CONTENTS Paqe 1 . 0 TNTRODUCTION....................................................... 1 2.0 PURPOSE AND SCOPE.................................................. 1 3.0 PROJECT HISTORy................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4.0 TECHNICAL APPROACH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4.1 TASK r. Literature Survey..................................... 3 4.2 TASK II. Field Investigation..... '" ........... ............... 3 4.2.1 Exploratory Drilling.......... ......... ................ 3 4.3 TASK III. Laboratory Analysis................................. 5 4.4 TASK IV. Report Preparation................................... 5 5.0 PROJECT SITE DESCRIPTION........................................... 6 6.0 GEOLOGIC AND HYDROLOGIC SETTING. '" ...... .......... ... .... ......... 6 6.1 Geologic Setting.........,..................................... 6 6.2 Hydrologic Setting............................................. 7 7.0 SUBSURF,;CE CO¡-;DITIONS....,......................................... 8 7.1 Soil Profile................................................... 8 7.2 Ground'Ñater Condi tions, . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . ., 8 8.0 RESULTS OF CHE':nc.:\L A~{;LYSIS....................................... 9 9.0 DISCUSSION OF FINDINGS...........,................................. 12 10.0 CO~CLUSIONS & RECOMMENDATIONS... ..... ...... ......... .... ........... 12 11.0 LIHITATIONS........................................................ 13 PLATES AND APPENDICES Site Vicinity Map Site Plan Generalized Cross-Section Plate 1 2 3 Results of Past Analysis Logs of Exploratory Borings Certified Analytical Reports Appendix A B C e - 1.0 INTRODUCTION This report presents the findings of Dames & ~oore's preliminary site characterization study conducted at Chevron Service Station Number 9-1554, located at 10 Union Avenue in Bakersfield, California (Plate 1, Vicinity Map). This report has been prepared by Dames & Moore at the request of Chevron U.S.A. 2.0 PURPOSE AND SCOPE OF SERVICES The Purpose and Scope of our investigation was outlined in Dames & Moore's workplan of November 9, 1990, addressed to Chevron U.S.A. The purpose of the study has been to provide a preliminary evaluation of the presence and estimates of the areal distribution of petroleum hydrocarþon contamination at the suhject property. The scope of services included the following tasks: o Research and review of pertinent, readily available geologic and hydrologic literature; o Obtaining necessary permits and authorization prior to the commencement of the field portion of the investigation; o Drilling and sampling of soils for classification and chemical analysis; o Chemical analysis of soil samples to evaluate the presence and concentration of petroleum constituents as referenced to gasoline and w"aste oil; and o Preparation of this report presenting our findings, conclusions and recommendations. 3.0 PROJECT HISTORY FOl1r underground storage tanks were exhumed and removed from the subject property on July 11, 1989. ,i\t the tilne of the tank removals, 34 soil samples were obtained by a representative of Krazan & Associates, Inc., at locations DAMES & MOORE e e Chevron U.S.A. Page 2 within the tank and dispenser system areas. Krazan & Associates Inc. submitted the samples to a California-Certified analytical laboratory for analyses to detect the presence and concentration of several constituents of gasoline and waste oil. The results of the analyses were presented in a Krazan & Associates report dated July 18, 1989, which suggested that "...concentrations of petroleum constituents exist in sixteen of the thirty-four samples obtained..." A copy of the analytical laboratory results contained within the Krazan & Associates Report is included in Appendix A of this report. Based on the results of the sampling and analyses associated with the tank removals, the Kern County Department of Environmental Health Services required that Chevron U.S.A. conduct a Preliminary Site Characterization study. At the request of Chevron USA, Dames & Moore submitted a proposed workplan for the preliminary characterization of the site to Kern County Environmental Health Services. Upon approval of the workplan, the field portion of the study commenced. 4.0 TECHNICAL APPROACH Based upon the information provided to Dames & Moore regarding the subject property, coupled with the review of pUblished groundwater data, the following technical approach was utilized to help evaluate the presence of gasoline and waste oil related contaminants in soils underlying the subject site. DAMES & MOORE e e Chevron U.S.A. Page 3 In order to accomplish the goals established for the proposed investigation, the work was separated into four distinct tasks.. I. Literature survey II. Field investigation III. Laboratory analysis IV. Preparation of a written report 4.1 Task I. Literature Survey The literature survey phase of the stu~y was useful in helping to establish an understanding of the site-use history. Additionally, the literature survey yielded the findings of past investigations and a generalized regional geologic and hydrologic setting of the sUbject site. The findings of the literature survey aided in the focus of the field investigation. 4.2 Task II. Field Investigation The field investigation task consisted primarily of the advancement of soil borings. The purpose of the soil borings was two fold; to log subsurface conditions for the purpose of interpreting lithologic and structural conditions, and to obtain soil samples for the purpose of laboratory analysis. Exploratory borings ""ere terminated at a maximum depth of approximateh 35 feet below the surface grade. ---.. 4.2.1 Exploratorv Drillinq Three exploratory borings were advanced in areas previously disclosed as possibly affected by gasoline and/or waste oil related soil contamination. The locations of the borings are as represented on the Site Plan, included as Plate 2 of this report. DAMES & MOORE e e Chevron U.S.A. Page 4 The drilling was performed using a truck-mounted drill rig equipped with 6- inch diameter, hollow-stem flight auger. A Dames & Moore geologist was present during the drilling to assist in obtaining soil samples, to maintain a log of borings, to field screen the soil samples with a device capable of detecting volatile organic hydrocarbons as a trace gas, and to make observations of the general site conditions. Soil samples were screened for the purpose of directing bore hole depths. Borings were terminated upon four consecutive "non-detected" field readings with an organic vapor analyzer. Since the greatest depth of point-source is associated with the bottoms of the previous tanks, field screenings to be considered for the fo\\r consecutive non-detected readings were commenced below the 15 foot depth in each soil boring. ~11 borings were preceded by hand augericg In the upper 5 feet to help avoid severing underground utility lines. Soils were sampled at approximate 5 foot intervals commencing at a depth of 5 feet below the surface grade. Samples were obtained by means of a California Modified split spoon sampler lined with brass sleeves. The sampler was advanced by blows from a 140 pound hammer dropped from a height of 30 inches. Upon retrieval, the sample liners were contained with a plastic cap over an aluminum foil seal anrl taped at each end. All samples were placed "on ice" in a cooler chest and shipped to an aniilytical laboratory under proper chain of custody protocols. Between sample intervals, the sampler was disassembled and washed in a trisodium phosphate solution, rinsed twice with purified water, and reassembled with new brass liners to minimize the potential of spreading contaminants between DAMES & MOORE e e Chevron U.S.A. Page 5 samples. All soils were visually classified in accordance with the Unified Soil Classification System at the time of the sample retrieval. Upon termination, all exploratory soil borings were backfilled to the surface grade using a cement grout. 4.3 Task III. Laboratory Analysis The third task accomplished during this study was laboratory chemical analysis of the soil samples obtained during Task II. Laboratory analyses cond11cted for the study were specified by Ms. Flora Darling of the Kern County " Department of Environmental Health. The following methodologies were specified for the chemical analyses of soil samples: EPA method 8020 for BTEX EPA method 8240 for aromatic volatiles (waste oil tank) EPA method 8015 (modified) for total petroleum hydrocarbons as gasoline EPA method 503 for oil and grease (waste oil tank) DHS LUFT method for total lead The laboratory analyses were focused on the detection of compounds commonly associated with gasoline and waste oil. 4.4 Task IV. ReDort Preparation The final task, Task IV, consisted of an analysis of the data obtained during the initial three tasks, and the summary presentation of Dames & Moore's findings. DAMES & MOORE e e Chevron U.S.A. Page 6 5.0 PROJECT SITE DESCRIPTION The project site is situated northeast of the intersection of Union Avenue and Brundage Avenue in Bakersfield, California (Plate 1). The property IS generally rectangular in shape and encompasses approximately 0.5 acre. At the time of our field investigation, the subject property was developed as an active Chevron Service Station with surface pavements, underground fuel storage tanks, underground product piping, fuel dispenser islands, planter areas, and an office/service garage. 6.0 GEOLOGIC AND HYDROLOGIC SETTING Based upon review of readily available published data, the following generalized geologic and hyòrologic setting has been developed for the subject site area. 6.1 Geologic Settinq The subject property is situated within the southern San Joaquin Valley which constitutes the southern portion of the Great Valley geomorphic province. The Great Valley is a topographic and structural basin bounded on the east by the Sierra Nevada, a gentle, southwestward dipping fault block. The Sierra Nevada is composed of igneous and metamorphic rocks of pre-Tertiary age which comprise th2 basement complex beneath the Valle~·. The Coast Ranges contain folded and faulted sedimentary rocks of Mesozoic and Cenozoic age, which are similar to those rocks which underlie the Central Valley at depth, and nonconformably overlie the basement complex. DAMES & MOORE e e Chevron U.S;A. Page 7 In the Bakersfield area, the basement rocks are overlain by Early to Middle Tertiary age marine sedimentary rocks. The marine sediments are overlain in turn by poorly consolidated, continental sediments which typically form the groundwater reservoir. Continental sediments consist of alluvial-fan and lacustrine deposits and in the vicinity of the study area reach an average depth of 2000 feet below grade. 6.~ HYdrologic Setting The subject property is located within the San Joaquin Basin Hydrologic Study Area, which includes roughly the southern two-thirds of the Great Central San Joaquin Valley. Within that area, a total of 39 groundwater basins and areas of potential storage have been identified. The inventory covers thirteen groundwater basins which have been identified as significant sources of groundwater. The subject site is situated within the Kern County Groundwater Basin. The Kern River flows in a southwesterly direction to the north of the site and provides significant recharge to the groundwater system. Water bearing sediments beneath the site consist of Late Tertiary and Quaternary aged sand and gravel deposits of Sierran origin. Lacustrine deposits contemporaneous to the Corcoran Clay are known to separate the upper and lower confined aquifer. Well data, as interpreted by Dale (Ground-water Geology and Hydrology of the Kern River Alluvial-Fan Àrea, California, 1966) suggests that a Corcoran Clay equivalent aquitard does not underly the site. Data contained within the "1987 Report on Water Conditions", published by the Kern County Water Agency in February, 1988, suggests that the depth to water is roughly 200 feet below grade. ~ DAMES & MOORE e e Chevron U.S.A. Page 8 7.0 SUBSURFACE CONDITIONS A total of three subsurface exploratory soil borings were advanced to a maximum depth of approximately 35 feet below the existing grade. The locations of the borings are as illustrated on Plate 2 of this report. 7.1 Soil Profile Soil and alluvial sediments encountered at the site were observed to generally consist of a fine grained silty sand extending from beneath surface pavements to a depth of between thirteen anò twenty-three feet. The silty sand unit is typically underlain by a poorly graded medium sand unit, however boring BH-1 yielded a silt unit, which, in tllrn was underlain by the medium sand unit. Contacts between these interpreted units were gradational. Plate 3 presents a generalized soil profile cross-section as interpreted from data obtaineò during the subsurface exploration. A more detailed account of subsurface conditions encountered is included in the Legs of Borings, included in Appendix B of this report. 7.2 Ground Water Conditions Ground water was not encountered In any of the borings advanced at the subject property at the depths and locations explored. Evaluation of groundwater was beyond the scope of this study. DAMES & MOORE e - Chevron U.S.A. Page 9 8.0 RESULTS OF CHEMICAL ANALYSIS A total of 21 soil samples were submitted to G.T. Environmental Laboratories, a State-approved laboratory previously selected by Chevron U.S.A. for the chemical analyses. Fourteen soil samples from BH-1 and BH-2 were analyzed to detect the presence and concentration of petroleum constituents typically associated with gasoline. Specifically, the soil samples from BH~l and BH-2 were analyzed by EPA Method 80~0 for benzene, toluene, ethylbenzene, and xylenes. Total petroleum hydrocarbons concentration was analyzed using a modified EPA Method 8015. Total lead was evaluated in two randomly chosen samples utilizing the DHS/LUFT method for total lead. The results of those analyses have been summarized on Table T. Seven soil samples from BH-3 were analyzed to detect the presence and concentration of oil and grease by EPA Method 413.2, total lead by the DHS/LUFT Method, and purgeable aromatic hydrocarbons by EPA Method 8040. The results of those analyses have been summarized in Table II. For more detailed information regarding results of chemical analysis, please refer to the certified analytical results included in Appendix C of this report. DAMES & MOORE e e Chevron U.S.A. Page 10 TABLE I Concentration of Petroleum Constituents in Soil (Concentrations Expressed in Parts Per Million) Sample I.D. Benzene S-B1-05 n/d S-B1-10 n/d S-B1-15 n/d S-Bl-20 n/d S-Bl-25 n/d S-Bl-30 n/d S-Bl-35 n/d S-B2-05 n/d S-B2-10 n/d S-B2-15 n/d S-B2-20 n/d S-B2-25 n/d S-B2-30 n/d S-B2-35 n/d Detection Limit 0.005 Toluene Ethbnz. n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n I d n I d .. 0.005 0.005 Xvlenes n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d nld n/d n/d 0.015 Leqend n/d - non-detected * - compound not analyzed for TPH - Total Petroleum Hydrocarbons Ttl. Lead TPH n/d n/d n/d n/d n/d n/d n/d n/d n/d nld n/d n/d n/d n/d 10 Ttl. Lead * n/d * * * * * * n/d * * '" '" '" 0.25 Ethbnz. - Ethylbenzene - Total Lead ~ - Soil TABLE II Concentration ot Petrolenm Constituents in Soil (Concentrations Expressed in Parts Per r1illion) ------------------- S-B3 -------------------- Detection Constituent 5.0 10.0 15~ 20.0 25.0 30.0 35.0 Limit Oil & Grease 56 n/d ...., n/d n/d n/d 8 5.0 I Organic Lead ." :': n/d ." :': ." n/d 0.25 Chloromethane n/d n/rt n/d n/d n/d n/d n/d 500 Brornomethane n/d n/rt n/d n/d n/d n/d n/d 500 Vinyl ChlorJ de n/d n/d n/d n/d n/d n/d n/d 500 Chloroethane n/d n/d n/d n/d n/d n/d n/d 500 Methylene Chloride n/d n/d n/d n/d n/d n/d n/d 250 .1\cetone n/d n/d n/d n/d n/d n/d n/d 5000 Carbon Disulfide nld n/d n/d n/d n/d n/d n/d 250 l,l-Dichloroethene n/d n/d n/d n/d n/d n/d n/d 250 l,l-Dichloroethane nld n/d n/d n/d n/d n/d n/d 250 DAMES & MOORE e e Chevron U.S.A. Page 11 (cant I d) ------------~------ S-B3 -------------------- Detection Constituent 5.0 10.0 15.0 20.0 25.0 30.0 35.0 Limit trans-l,2-di- chloroethene n/d n/d n/d \lId n/d n/d n/d 250 Chloroform n/d n/d n/d n/d ~n/d n/d n/d 250 1,2-Dichloroethane n/d n/d n/d n/d n/d n/d n/d 250 2-Butanone n/d n/d nid n/d n/d n/d n/d 5000 l,l,l-Tri- chloroethane n/d n/d n/d n/d n/d n/d n/d 250 Carbon TI.~trachloride n/d n/d n/d n/d n/d n/d n/d 250 Vinyl Acetate n/d n/d n/d n/d n/d n/d n/d 2500 Bromodi- chloromethane n/d n/d n/d n/d n/d n/d n/d 250 1 ')- , ~ Dichloropropane aid n/d n/d n/d n/d n/d n/d 250 Cis-l,3- Dichloropropene n/d n/d n/d n/d n/d n/d n/d 250 Trichloroet1tene n/d n/d nld n/d n/d n/d n/d 250 Dibromochlcro- methane nld n/d nld n/d n/d n/d n/d 250 1.. L 2-- T fl ch 10 roe thane nid n/d n/d n/d n/d n/d n/d 250 Benzene n/d n/d n/d n/d n/d n/d n/d 250 Trans-l,J- Dichloropropene n/d n/d n/d Did n/d n/d n/d 250 2-Chloroethyl- vinylether n/d n/d n/d n/d nid n/d n/d 500 Bromoform n/d n/d nld n/d nld n/d n/d 250 4-Methyl- 2-Pentanone n/d n/d Did Did n/d n/d n/d 2500 2-Hexanone n/d n/d nld n/d n/d n/d n/d 2500 Tetrachloroethene n/d n/d n/d n/d !lId n./d n/d 250 1,1,2,2-Tetra- chloroethene n/d n/d n/d n/d nid n/d n/d 250 Toluene n/d n/d n/d n/d n/d n/d n/d 250 Chlorobenzene n/d n/d n/d n/d n/d n/d n/d 250 Eth~'l benzene n/d n/d nid n/d n/d n/d n/d 250 StYfp.ne n/d n/d r./d n/d n/d n/d n/d 250 1, 3- Dichlorobenzene n/d n/d n/d n/d n/d n/d n/d 250 1,2&1,4- Dichlorobenzenes n/d n/d n/d n/d n/d n/d n/d 250 Total Xylenes n/d n/d níd n/d n/d n/d n/d 250 Trichlorofluoro- methane n/d n/ò n/d n/d n/d n/d n/d 250 Legend :_ n/d - non-detected; * - not anaJyzed DAMES & MOORE ·e· e" Chevron U.S.A. Page 12 9.0 DISCUSSION OF FINDINGS Three exploratory borings were advanced to a depth of approximately 35 feet below existing grade at the subject property. A total of 21 soil samples were obtained and submitted for chemical analysis. The soils profile as interpreted from data obtained during the advancement of the borings was interpreted to generally consist of silty sand and silt underlain by a medium, poorly graded sand. Soil samples were obtained at five foot intervals from each of the exploratory borings. Each sample was field screened with an photo-ionization detector, visually classified and logged, and sealed for transport to the analytical laboratory. The results of the chemical analysis conducted on the soil samples obtained from the exploratory soil borings at the subject property showed non-detected concentrations of petroleum hydrocarbons as referenced to gasoline and low levels of hydrocarbons associated with oil & grease. Four randomly selected soil samples obtained from our exploratory soil borings were submitted to the laboratory for total lead analysis. Samples analyzed for total yielded "non-detected" results. 10.0 CONCLUSIONS AND RECOMMENDATIONS Based upon review of the data obtained from our field and laboratory study at the subject property, coupled with review of readily available published data, we have summarized the following general conclusions for your consideration. DAMES & MOORE ... f ;¥ . e e ~ ~ '. ..... . . ·?·t~~~~~;·~}7~·;ï~'-'· .. .....·~::::,:~.~~\~t.:.:-..~· >;õ; _ . ~ ?:,:' -; f.;.. -o't.~' . . . ~ . ': '. >. '-:~ ~' . ~ ~ . - " Chevron U;S.A~ Pag~ 13 Conclusions: o The results of chemical analysis conducted on soil samples obtained from the exploratory borings were all '''non-detected'' for the presence of benzene, toluene, xylenes, ethyl benzene and total petroleum hydrocarbons, as referenced to gasoline. Relatively low levels of oil and grease were detected in soil samples obtained from boring BH-3. o Oil and grease concentrations reported at depth greater than five feet below existing grade, with non-detected results from samples obtained above and below the detectable results suggest that whatever compound registered as oil and grease from chemical analysis may be naturally occurring. o The results of chemical analysis conducted on selected soil samples to detect the presence of total lead reported "non-detected" concentrations of lead. o ~t is Dames & Moore's opinion that thë soil materials previously sampled from within the tank pit at the time the tanks were removed may not have been representative of general conditions in the formation beneath the site. Recommend a ti ons : o In our opinion, review of the data collected during our investigation at the subject site ~ould not suggest the need for further site assessment activity at this time. o We recommend a copy of this report be provided to each as follows: 1) Kern County Environm~ntal Health Department 2700 M Street, Suite 300 Bakersfield, California 93301 2) Central California Regional Water Quality Control Board 3374 East Shields Avenue Fresno, California 93726 11.0 LIMITATIONS The conclusions presented in this report are professional opinions based on the indicated data described in this report. They are intended only for the purpose, site location and project indicated. The conclusions presented in this report are based on the assumption that subsurface conditions do not deviate from those observed during our stl1d~', as described in this report. It should be recognized that this study was not intended to be a definitive study of DAMES &. MOORE -··6 ....,.f.,.'. _HOC- ~. ~y. . . >- I Chevron U.S.A. Page 14 contamination at the site. Other locations of contamination may exist at the site and the levels of contamination at the site may vary from those shown. The opinions presented herein apply to site conditions existing at the time of our study. They cannot necessarily apply to site changes made of which this office is not aware and has not had opportunity to evaluate. Changes in the conditions of the subject property can occur with time, because of the natural processes or the works of man, on the subject site or on adjacent properties. Changes in applicable engineering or regulatory standards can also occur as the result of legislation or from the broadening of knowledge. Accordingly the findings of this report may be invaliQated, wholly or in part, by changes beyond our control. -000- DAMES & MOORE ·_'~;f:~"\.·';' I·~~V. .'.. ~::;·~I~~~~ ·~~t~~~dl~~ ~.J, t... or.... t;t.,.· So· .... 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W !~ __:J ; c.: 0" '.. ~ c Q e. 3 Vi ~ ": -., ""I'. (II , :~,. c~~ ,~ofubA"..~i1';! ~~ ~ r (C"ioi " ,~O. "'......,.. .. ji,;; ;z: ,;; ~~. !J'~~~ .,;Ii i:i .j ~2 \ WHITIf 'LA~~ :.-;1.. ,: ·...··T II e,\ST~' WHITe LANE I <7~!KT ¡ / I !;èŠ ~:; .~:~~: J~~~;:: \.1.. ~_ "'\-; irl//)t.. . ~I ~"~'þo""- \'- ;'~~I~~' i"~~ ~ ~~q~i; j H'~ J~i~r'. ~ 1;::. =-¡ ~j /" h!:~~¡ ~ ~~i .o~~ VI ~ ~!I ~ ,¡4( .~~ ~:r!i¡r' L. --:i-ca_ ~i!.!.'" tr--.;,c,_,.Î_! ~:¡ . I ::I.. £'" f '. 1t_......I~:~ .t_ .:t......:::J PJ!lülô1lo" 21 'C..., ~" :~,._;. "'11~;~'" t~;"'- ¡~~..'-~ ;~: ~@:;. ;; -""'~õ ~!~!""._:_~~Øt' .-:......;..;.""'.~.¡;~ .', ~- Qu...." ~. .~ ;..~;;;:;;~w~prii.;""¡ I!;·,..."""'¡·ø J ; q¡ ~1. ,1;1 .I.~ ,7 I,,.t..,'l.~ò...:.ri;r~ni'fi..:;;;¡.~· . "".-!.. .. _ II ..): .!\ J CHEVRON STATION # 9-1554 ,,,-: , , EJ Q oC C II: I -~- J 0.,.., ~ ,... 0",·1.. ~. .""". .,.... .... "-m.. 1m. ~,.,t 50\", .... Q --'--'-. 16000-232-044 .._----- VICINITY MAP DAMES &. MOORE 10 UNION AVE. BAKERSFIELD, CA PLATE 1 ·, w ~I z, o -1 Z ::J . '. . . ¡::'~~S I I \ \ ~ + SOIL BORINGS ~-- , '. , . BH-3 , , (.j WASTE " " " .,~'. .: ".~:-' . - .. , '. ',-"- . I OIL TANK .......... ..... ---- ..., -b ¡II ~~=--==_:- -¡.=--~=-_-: ::'_--:.~- ;¡ 11E~ ijBH_' ~i"~'" II PREVIOUS TANK :.,,;;;:;;:'" "<~ - - - LOCATION '~==.:1...1h Ilf ( 6b ::: > I' "' II, PRODUCT L IN E s~,r ISLANDS Iii II' LI:-------, --=-- ~ --, ¡ I ( . be ó ) BRUNDAGE AVE. 16000 217 044 CHEVRON STATION # 9-1554 SITE PLAN DAMES &. MOORE 10 UNION AVE BAKERSFIELD, CA N -~- I SCALE 1"=30' PLATE 2 . ...4 .. . ~':::;D;;: :i'~:0f':S)~;~;'" ---,t, . , .. .. " . . . . . - BH-3 BH-1 '@/ / "; \ LEGEND .... :t ....I·...~: F . ...., ,. '- .: .... PEA GRAVEL & SAND FILL BROWN & YELLOW BROWN SILTY SAN BROWN CLAYEY SILT BROWN" GREEN GRAYMEDIUM SAN ..... 1M .... . SCALE: 1"=20' HORIZ. AND VERT. D~i!~~ ., 16000-232-044 CHEVRON STATION # 9-1554 10 UNION AVE. BAKERSFIELD, CA GENERALIZED SOIL CROSS-SECTION DAMES &. MOORE PLATE 3 BORING UNIFIED SOil CLASSIFICATION SYSTEM OIU,''''( LlHIII "'JOII DIVIIION, IYMBOl IY..BOl ow ...vl&. ..... CUA" ,."",\1 O_"VIL\Y ...... lunu 0" NO .-..... O' co.·" .."..... ...... OM Gill"'''''' ""N ...... "0111' 'WAIt '" ell CD.AU 'UC· ..""'ICIAUI "0""".''''0 AMOUH' O' 'INln ON Ncf.TiiT'Vr ac . . \\~W~fi( I" ....... CU." I.NO ..... lun'l 0" NO U..OY ""UI IOILI P "0., 'H"" "" 0# ".'."'A\.II )::~~=.'~.~: NO. IANDI_'" ",.,.. MOAt tNAN ~ 0' CO."II ,....C· ...""'0...... ::~ ii/!(!i "&.IOU'" Dill ,...... 'I..t ....IN.. ...... UO'II TN...... 01............. " ~,~ :~~....o. ....11 ..... c".... "IOUtOll.." U!! rM''', II. ..'n .... Cl.., "10l.Il0 "'MI' Gft...... '"...... MteI"," O.O."C 10lU ,nICAlDIICII"flONI "'.u c;,u.o.o ç.u,,,,, to G".vfl· 'A"O ...... .u.... "'lfU 0" frfO ..".. POO"". G".o.oc'....'.u. C..,,,, .....0..'. 'u"". U",I OIIIINO ,.NII III n CfIlllAvtU.C".."h.·.....O' 111.1 .... 'Uf'1I ("A'fl. GIII.VILt. GlIllAVIl-..,.o. ClA" "'.'U"" ....U.(¡III.O.D 1'-''''01. G""V'U.. 'A"OI, "UI'" 0.. NO '1." 100""" C".OIO ....NO.. 0......,...· ..'t ....~o.. LlffU 0" NO 'INII ..... ,., I"HOS. I.HO·ln..' ....'U.... nA""" '''HOI. ,....OC.... ...ru-u ...o.,.....c .,,,,. .HD yl"" ".., ......0.. .oce '''OU.. .'",. 0" (LAY'" ,."', ....NO. 0" C"AY'. 'n." WI'" 'LlO'" 'I.."'eln "'O..C......CC&.4'f. 0' lOW ro ..iolu" ."....'.C.I.,. G"""'L""f Ca.A"'I. ......0... C..A....I.l'. CLA"'I. Lt.NCLAY' O~ O'IO_...c I.\. II .....0 o_o_".C ....,., C-';A.' 0' "OW ......IIIC"., .... ...a.c.....lc.... I.. ".C_Clout 0" OIA'Q.....e.out ,..., ......0 O. ....'·IOILI CH .IItO"Q.....c ClA'f' 0' M.QM '\,.11.(.1., f.' CLA.' ON D"OA",.C c......., 0' V'OIU" r~ HIGH ,,,.,r.c"r. O"GAIift( ....,. "Ar~ ""WUI, I.A'" ,0'" ...," "'CM o-u:..,..c to", "" II LOG LEGEND ~ Standard penetrallon Ipllløpoon lample I Modified California lampler I Shelby tube lamp I. f Waler level obeerved In boring .. No r. c ova r y NOTE: The line. eeparallng II rata on the loge repr..enl approxlmat. boundaries onl,. The 8 C t u 8 I tr a n s III 0 n may beg. r a d u ., . No warranty Ie provided .. Uo the conllnul of loll etr.l. between borings. Log. r.pr..ent the soli .actlon ob.ar"ad e, Ihe boring locetlon on the dete of drilling only. l' , \ .. ~ Dames & Moore PLATE I 35 S-'MPLING a: w CI) ..I W ~ a. OU z ::I zz - < -< a en ..I.... < II. a. en w ::1_ a: 0 <en w enw Q a: - a. a. > .... C 14 0 C 27 0 C 56 0 C 68 0 C 32 0 C 71 0 C 63 0 .... w. W II. Z ::: .... a. w Q o 5 10 15 20 25 30 e BORI NGBH-1 D ATE DR ILL ED: 2-6-90 en ELEVATION: w ..I a. ::I < en · . .. SYMBOLS DESCRIPTION · . . '. · . .. · . .. · . .. · . .. · . . . · . .. · . .. · . .. · . .. · . .. · . .. I .... · . . . · . .. · .-.. · . .. · . . . · . . . · . .. · . .. · . .. · . .. · . .. · . . . · . . . · . .. I .... · . .. · . . . · . . . · . . . · . .. . " I ML I [~;=:}}/}:J I 8P k:(;·;·:;:i~:.1 1;:::::·::'- (::<:::'.: ":';::::' :'.'. I f)ii9 :'.':.::::1 ,.:::,:.::::::.':::J JOB NUMBER 16000-232-044 0-1. 5 I 0.5'-13' Asphalt pavement and base rock. Brown and yellow brown, moist, soft to stiff, silty sand. Contains coarse quartz grains and m~ca. 8M , . . " " 13'-20' Brown, moist, very stiff, clayey silt with m~nor sand. .. . " 20'-35' " Brown and green-gray, moist, dense, medium gra~n sand with quartz and feldspar. Bottom of boring at 35 feet. LOG OF BORING ~ Dames & Moore ! PLATE 35 SAMPLING a:: III m -I III <' Q. <'U Z ::& ZZ - 0( -0( Q m -I... 0( II. Q.m III 2- a:: 0 O(m III mill Q a:: - Q. Q. > ... e 3 ø e ø ø e 22 ø e 40 ø e 42 ø e 68 ø e 47 ø ... III III II. Z %: ... Q. III Q o 5 110 15 120 25 30 m IU -I Q. ::& 0( m e· " ·~~'":~-~f~~. I:,: ..'~~"~ \:",-' :--1~.-= '.~',' ~ ."~., ",,"~, ',', ....." '. .:>' h,.:_.~..;,._..., . j ~ . BORING BH-2 7'-23' " 23'-35' JOB NUMBER 16000-232-044 ·0 DATE DRILLED: 2-6-90 ELEVATION: SYMBOLS DESCRIPTION o 0.5' 0.5'-]' I FILL : : : : J I I I I :::::'::~f!:';":'~~:;: I I ><'\y: . . . ., SM SP Asphalt pavement an~ base rock. Pea gravel and sand fill. Brown, loose to medium dense, fine silty sand. Yellow-red and brown, medium dense, medium sand. Bottom of boring at 35 feet. LOG OF BORING ~ Dames & Moore I PLATE r SAMPLI NG a: \II tn ~ \II c:s ~ C:SCJ :: z zz - c( -c( Q tn ~... c( I&. ~CI) \II 2_ 0 c(CI) a: \II CI)\II Q a: - ~ ~ > 0 ... 5 C 8 ø C 20 ø C 16 ø C 21 ø C 35 ø C 37 ø C 33 ø ... III \II I&. Z :: ... ~ \II Q 10 : 15 20 25 30 35 JOB NUMBER CI) w ~ ~ :: c( CI) d·e~ .i . ~""~,...,,.. "." .: j.', ':. ';: ..~..t ~ '._,,~, . SM ·:;"q(;f(:I ~', '. I ,llli :\./~}/~~:~:: I i~///ij::) ..;:...:....:: WT.\\:\ BORING BH-3 D ATE D R ILL ED: 2-6-90 ELEVATION: SYMBOLS DESCRIPTION 0-0.5' I I I I li~~ X1-\¥W ...:::....:.::.:::::.::: I w~.m}·t( SP 16000-232-044 0.5'-14' 14'-35' Asphalt pavement and base rock. Brown, loose, fine, silty sand. Minor coarse, round grains and mica. Brown and light brown, moist, medium dense, medium grain sand. Thin (1 em. thick) silt interbeds at approximately 25 feet. Bottom of boring at 35 feet. LOG OF BORING ~ Carnes & Moore f PLATE ----------------- ---- - - - -------- . . e· ·e ~.iojeèt;~órE8MS6:~'~, =.' ".' " . P- N" 4 " :-.·;age 0.:. t.:,';'" ,,';.... ~ : ..., ". T.\ BY F I Concentration of Petroleum Constituents in Soils Tank Removal Soil Samolinlt Chevron Station 15S~ 10 Union Avenue Bakersfield. California July 1989 (Concentrations in parts per million) Sam pIe Depth Below E th y 1- Total Oil & Number Grade Benzene Toluene benzene Xvlenes TVH l&.Ml Grea!:e IQX 1a 17.5 ft l\'D 1'.'D ND ND ND 2a 17 ft ND 0.03 ND ND ND 3a 21 ft ND ND ND ND ND 4a 17 ft ND ND ND ND l\'D Sa 21 ft 0.03 0.64 0.51 7.7 53 6a 17 ft ND 0.02 ND 0.02 ND 7a 21 ft ND 1'.'D ND ND ND 8a 17 ft ND ND ND ND ND . 9a 21 ft ND ND l'm ND ND lOa 17 ft 1'.'D ND ND ND ND 11 a 21 ft 1'.'D ND l'm ND ND 12a 17ft. 1';1) 0.02 ND 1';1) 1';1) 13a 21 ft ND 1'.1) ND ND ND Ib 8 ft 20 260 ND 2b 12 ft l\'D 310 1';1) 3b 3 £t 4.4 6.6 10.1 2.5 2700 4b 3 ft 2. I 25 1.0 3.6 4000 5b 3 ft 0.11 0.87 0.27 2.5 15 6b NA ND 0.02 0.02 1.8 37 7b NA 1'.1) 1'.'D ND 0.02 ND 8b NA ND 0.05 1'.'D 3.5 2.5 1 c 7 ft ND 0.38 0.25 2.2 . ND 2c 7 ft 0.09 1.3 0.67 5.7 ND 3c 7 ft 1';1) 1'.1) ND 0.07 ND 4c 4 ft ND ND ND 0.09 ND 5c 8 ft 1'.'D' 1';1) ND ~'D ND . 6c 4 ft ND 1'.'D 1';'D ND ND Jc 8 ft 1';1) 1'<1) ND 1'<'D ND .. 8c 4 ft ND 1'.'D 1';1) ND ND 9c 8 ft ND 1'.'D ND ND 1'.'D 10c 4 ft ND 1'.1) ND 1'.'D ND 1 1 c 8 ft 1';1) 1';1) ND ND ND 12c 4 ft ND 1';1) f'.;1) ND ND 13c 8 [t 1\1) 1'.1) f'.;1) ND ~'D TVH = Total Volatile Hydrocarbons TOX = Total Organic Halides 1\:1) = None detected at the detection limits noted on the certified analytical reports = Not analyzed KRAZA.'l & ASSOCIATES, INC. e e GTEL .. E N V I RON ME N TAL LAB 0 RAT 0 R I E S. INC. Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002252 Report Issue Date: February 22, 1990 Western Region 4080·C Pike Ln" Concord, CA 94520 (415) 685·7852 In CA: (800) 544-3422 Outside CA: (800) 423-7143 JEFF PALMER DAMES & MOORE 1320 E. SHAW AVE, SUITE 110 FRESNO, CA 93710 DEAR MR. PALMER: Attached please find the analytical results for the samples received by GTEL on February 10, 1990. GTEL maintains a formal quality assurance program to ensure the integri ty of the analytical results. All quality assurance criteria were achieved during the analysis unless otherwise noted in the footnotes to the analytical report. The specific analytical methods used and cited in this report are approved by state and federal regulatory agencies. GTEL is certified for the analysis reported herein by the California State Department of Health Services under certificate number 194. If you have any questions regarding this analysis, or if we may service any additional analytical needs, please give us a call. Sincerely, GTEL Environmental Laboratories, Inc. , ,:-:-:. ¡ . - /:::..- .,' °i .. Emma P. Popek Laboratory Director GTEL Concord, CA D002252.DOC Page 1 of 8 e 8 Project Number: SFB-175-0204.72 Consultant Project Humber: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Humber: 9-1554 Work Order Number: D002252 Report Issue Date: February 22, 1990 Table 1 ANALYTICAL RESULTS Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in 50il EPA Method 8020/80151 GTEL 5ample Nunber 01 02 03 04 Cl ient Identification 5-B1-5 5-B1-10 5-B1-15 5-81-20 Date 5ampled 02/06/90 02/06/90 02/06/90 02/06/90 Date Extracted 02/1 0/90 02/1 0/90 02/10/90 02/1 0/90 Date Analyzed 02/16/90 02/16/90 02/16/90 02/16/90 Detection Analyte Limit, mg/I(g Concentration, mg/Kg Benzene 0.005 <0.005 <0.005 <0.005 <0.005 Toluene 0.005 <0.005 <0.005 <0.005 <0.005 Ethylbenzene 0.005 <0.005 <0.005 <0.005 <0.005 Xylene (total) 0.015 <0.015 <0.015 <0.015 <0.015 TPH as Gasoline 10 <10 <10 <10 <10 GTEL 5ample Number 05 06 07 08 Cl ient Identification 5-B1-25 5-B1-30 5-B1-35 5-B2-5 Date 5ampled 02/06/90 02/06/90 02/06/90 02/06/90 Date Extracted 02/10/90 02/10/90 02/10/90 02/1 0/90 Date Analyzed 02/16/90 02/16/90 02/16/90 02/16/90 Detection Analyte Limit, mg/Kg Concentration, mg/Kg Benzene 0.005 <0.005 <0.005 <0.005 <0.005 Toluene 0.005 <0.005 <0.005 <0.005 <0.005 Ethylbenzene 0.005 I <0.005 <0.005 <0.005 <0.005 Xylene (total) 0.015 <0.015 <0.015 <0.015 <0.015 TPH as Gasoline 10 <10 <10 <10 <10 Extraction by EPA Method 5030 GTEL Concord, CA D002252.DOC Page 2 of 8 "'''"",-,,\ , \ J c;:::a , GTEt ENVI~ONMENT"L L"80~"TORIES INC e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002252 Report Issue Date: February 22, 1990 Table 1 (Continued) ANALYTICAL RESULTS Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/80151 GTEL Sample Number 09 10 11 12 Cl ient Identification S-B2-10 5-B2-15 5-B2-20 S-82-25 Date Sampled 02/06/90 02/06/90 02/06/90 02/06/90 Date Extracted 02/10/90 02/10/90 02/10/90 02/10/90 Date Analyzed 02/16/90 02/16/90 02/16/90 02/16/90 Detection Analyte Limit, mg/Kg Concentration, mg/Kg Benzene 0.005 <0.005 <0.005 <0.005 <0.005 Toluene 0.005 <0.005 <0.005 <0.005 <0.005 Ethylbenzene 0.005 <0.005 <0.005 <0.005 <0.005 Xylene (total) 0.015 <0.015 <0.015 <0.015 <0.015 TPH as Gasoline 10 <10 <10 <10 <10 GTEL Sample Number 13 14 Cl ient Identification S-B2-30 5-82-35 Date Sampled 02/06/90 02/06/90 Date Extracted 02/10/90 02/1 0/90 Date Analyzed 02/16/90 02/16/90 Detection Analyte Limi t, mg/Kg Concentration, mg/Kg Benzene 0.005 <0.005 <0.005 Toluene 0.005 <0.005 <0.005 Ethylbenzene 0.005 <0.005 <0.005 Xylene (total) 0.015 <0.015 <0.015 TPH as Gasoline 10 <10 <10 = Extraction by EPA Method 5030 GTEL Concord, CA D002252.DOC Page 3 of 8 ~?1 GTE l. -~,- ENVIRONMENTAL 11m LABORATORIES. INC. - e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Fac;l;ty Number: 9-1554 Work Order Number: D002252 Report Issue Date: February 22, 1990 QA Conformance Summary purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 1 .0 Blanks Five of 5 target compounds were below detection limits in the reagent water blank and reagent methanol blank as shown in Tables 2a and 2b. 2.0 Independent QC Check Samole The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. 3.0 Surrogate Compound Recoveries Percent recovery limits were met for the surrogate compound (naphthalene) for all samples as shown in Table 4. 4.0 Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Accuracy and Precision 4.1 Percent recovery limits were met for 4 of 4 compounds in the MS andMSD as shown in Table 5. 4.2 Relative percent difference (RPD) criteria was met for 4 of 4 analytes in the MS and MSD as shown in Table 5. 5.0 Samcle Handling 5.1 Sample handling and holding time criteria were met for all samples. 5.2 There were no exceptional conditions requiring dilution of samples. GTEL Concord, CA D002252.DOC Page 4 of 8 -~l Git l _c.:.:.;. J E N V I RON ME" r A L ED LABORATORIES INC e e Project Number: SFB-11S-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWCÒ244-9-X Facility Number: 9-1554 Work Order Number: D002252 Report Issue Date: February 22, 1990 Table 2a REAGENT WATER BLANK DATA Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 Date of Analysis: 02/16/90 Analyte Concentration, ug/L Benzene <0.3 Toluene <0.3 Ethylbenzene <0.3 Xylene (total) <0.6 Gasol i ne <50 Table 2b REAGENT METHANOL BLANK DATA Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 Date of Analysis: 02/16/90 MeOH Lot No: AW044 Analyte Concentration, mg/Kg Benzene <0.005 Toluene <0.005 Ethylbenzene <0.005 Xylene (total) <0.015 Gasoline <10 GTEL Concord, CA D002252.DOC Page 5 of 8 .~~] GTE l ami ~:8YOI~~A~;~~EESN ~~~ e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Faci l ity Number: 9-1554 Work Order Number: D002252 Report Issue Date: February 22, 1990 Table 3 INDEPENDENT QC CHECK SAMPLE RESULTS Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 Date of Analysis: 02/15/90 Expected Result, Observed Result, Acceptabi l i ty Analyte ug/L ug/L Recovery, % Limits, % Benzene 50 51 102 85-115 Toluene 50 49 98 85-115 Ethylbenzene 50 47 94 85-115 Xylene (total) 150 145 97 85-115 Table 3a INOEPENDENT QC CHECK SAMPLE SOURCE purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 Analyte Lot Number Source Benzene LA18042 SUPELCO Toluene LA18042 SUPELCO Ethylbenzene LA18042 SUPELCO Xylene (total) LA18042 SUPELCO GTEL Concord, CA D002252.DOC Page 6 of 8 -~·"l ~ 1""3 ~ l .i ~ ~ !;; .. .-'-. ..,. EN V I RON MEN TAL EÐ LABORATORIES INC GTEL Concord, CA D002252.DOC e e Project Number: SFB-175-0204.72 Consul tant Project Number: 16000-232-044 Contract Number: N4~C0244-9-X Facility Number: 9-1554 Work Order Number: 0002252 Report Issue Date: February 22, 1990 Table 4 SURROGATE COMPOUND RECOVERY Naphthalene Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 Acceptability Limits1: 60 - 130 % Expected Result, Surrogate Result, Surrogate Recov· GTEL No. ug/L ug/L ery, % IJater Blank 200 230 115 MeOH Blank 200 184 92 01 200 184 92 02 200 184 92 03 200 184 92 04 200 186 , 93 05 200 194 97 06 200 186 93 07 200 186 93 08 200 186 93 09 200 186 93 10 200 192 96 11 200 176 88 12 200 174 87 13 200 168 84 14 200 162 81 MS 200 174 87 MSD 200 154 77 MS MSD 1 Matrix Spike Matrix Spike Duplicate Acceptability limits are derived from the 99% confidence of all samples during the previous quarter. interval Page 7 of 8 zn GTE l ~ ~:B"oIRRA~;R~EES" ~~¿ · e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002252 Report Issue Date: February 22, 1990 Table 5 MATRIX SPIKE (MS) AND MATRIX SPIKE DUPLICATE (MSD) RECOVERY AND RELATIVE PERCENT DIFFERENCE (RPD) REPORT Purgeable Aromatics and Total Petroleum Hydrocarbons as Gasoline in Soil EPA Method 8020/8015 Oate of Analysis: Sample Used: 02/16/90 01 Cl ient ID: Units: S-B1-5 mg/Kg Sample Concentration MS, % MSD, % Analyte Result Added MS Result Recovery MSD Result Recovery Benzene ND 2.86 2.00 70 1.83 64 Toluene ND 2.86 2.04 71 1.82 65 Ethylbenzene ND 2.86 2.09 73 1.89 66 Xylene (total) ND 8.58 6.36 74 5.76 67 Acceptability Limits1 Analyte RPD, % Maximum RPD, % % Recovery Benzene 9 30 53 - 114 Toluene 9 30 56 - 110 Ethylbenzene 10 30 57 - 112 Xylene (total) 10 30 57 - 112 ND Not Detected above the statistical detection limit 1 Acceptability limits are derived from the 99% confidence interval of all samples during the previous quarter. GTEL Concord, CA D002252.DOC Page 8 of 8 .~e.] G1E L I::'.::J ~:BvOIQQ"~~Q~E\'" ~~~ · e GTEL - ENVIRONMENTAL LAB 0 RAT 0 R I E S. INC. Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facil ity Number: 9-1554 Work Order Number: 0002253 Report Issue Date: February 15, 1990 Western Region 4080-C Pike Ln., Concord, CA 94520 (415) 685·7852 In CA: (800) 544-3422 Outside CA: í800) 423-7143 JEFF PALMER DAMES & MOORE 1320 E. SHAW AVE, SUITE 110 FRESNO, CA 93710 DEAR: MR. PALMER: Attached please find the analytical results for the samples received by GTEL on January 10, 1990. GTEL maintains a formal quality assurance program to ensure the integrity of the analytical results. All quality assurance criteria were achieved during the analysis unless otherwise noted in the footnotes to the analytical report. The specific analytical methods used and cited in this report are approved by state and federal regulatory agencies. GTEL is certif ied for the analysis reported herein by the California State Department of Health Services under certificate number 194. If you have any questions regarding this analysis, or if we may service any additional analytical needs, please give us a call. Sincerely, GTEL Environmental Laboratories, Inc. Emma P. Popek Laboratory Director GTEL Concord, CA D002253.DOC Page 1 of 6 e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002253 Report Issue Date: February 15, 1990 Table 1 ANALYTICAL RESULTS Organic Lead in Soil by Flame AA EPA Method 74201 Sa~le Date Date Date Concentration, Identification Sa~led Extracted Analyzed mg/Kg (2) GTEl No. Client ID 01 S-B1-10 02/06/90 02/13/90 02/13/90 <0.25 02 S-B2-10 02/06/90 02/13/90 02/13/90 <0.25 03 S-B3-15 02/06/90 02/13/90 02/13/90 <0.25 04 S-B3-35 02/06/90 02/13/90 02/13/90 <0.25 = Extraction byDHS method; LUFTManual, 12/87 rev.: sample extracted with 50mL Xylene/MIBK mixture, Aliquat 336. ' 2 = Method detection limit = 0.25 mg/Kg; analyte below this level would not be detected. GTEL Concord, CA D002253.DOC Page 2 of 6 GTEL .. eNVI~ONMeNTAL LA80~ATO~1 es. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 ~ork Order Number: 0002253 Report Issue Date: February 15, 1990 QA Conformance Summary Organic Lead in Soil by Flame AA EPA Method 7420 1.0 Blanks The method blank was below the detection limit as shown in Table 2. 2.0 Initial Instrument Calibration The range of concentrations of the initial instrument calibration are shown in Table 3. 3.0 Calibration Verification Standards 3.1 The control limits were met for the initial calibration verification standard (rCVS) as shown in Table 4. 3.2 The control limits were met for the continuing cal,ibration verification standard (CCVS) as shown in Table 4. 4.0 Sample Duplicate precision Relative percent difference criterion was met for the sample duplicate as shown in Table 5. 5.0 Sample Handlinq 5.1 Sample handling and holding time criteria were met for all samples. 5.2 There were no exceptional conditions requiring dilution of samples. GTEL Concord, CA Page 3 of 6 D002253.DOC GTEL .. ENVIRONMENTAL LABORATORIES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CYC0244-9-X Facility Number: 9-1554 York Order Number: D002253 Report Issue Date: February 15, 1990 Table 2 METHOD BLANK DATA Organic Lead in Soil by Flame AA EPA Method 7420 Date of Analysis: 02/13/90 Analyte Concentration, mg/Kg Organic Lead <0.25 <# = Not detected at the indicated detection limit. Table 3 INITIAL CALIBRATION STANDARDS DATA Organic Lead in Soil by Flame AA EPA Method 7420 Date of Analysis: 02/13/90 Standard Number Concentration, mg/L 1 0.000 2 0.400 3 0.800 4 2.000 GTEL Concord, CA D002253.DOC Page 4 of 6 GTEL - ENVIRONMENTAL lABORATORIES. INC. e - Project NUJÐer: SFB-175-0204.72 Consultant Project NUJÐer: 16000-232-044 Contract Number: N46~C0244-9-X Facility Number: 9-1554 ~ork Order NUJÐer: 0002253 Report Issue Date: February 15, 1990 Table 4 INITIAL AND CONTINUING CALIBRATION VERIFICATION STANDARDS RESULTS Organic Lead in Soil by Flame AA EPA Method 7420 Date of Analysis: 02/13/90 Initial Calibration Verification Standard Expected Result, Observed Result, Acceptability Analyte mg/L mg/L Recovery, % Limits, %1 Organic Lead 0.600 0.638 106 80 - 120 Continuing Calibration Verification Standard Expected Result, Observed Resul t, Acceptability Analyte mglL mg/L Recovery, % Limits, %1 Organic Lead 0.800 0.814 102 80 - 120 Acceptability limits are derived from the 99% confidence interval of all samples during the previous quarter. Table 4a INITIAL AND CONTINUING CALIBRATION VERIFICATION STANDARDS SOURCE Organic Lead in Soil by Flame AA EPA Method 7420 Initial Calibration Verification Standard Analyte Lot Number Source Organic Lead 3791 MCB Continuing Calibration Verification Standard Analyte Lot Number Source Organic Lead AK215 Spectrum GTEL Concord, CA D002253.DOC Page 5 of 6 ". .~ GTEL ~ ENVIRONMENTAL LABORATORIES, INC. e e Project Number: SFS-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002253 Report Issue Date: February 15, 1990 Table 5 LABORATORY DUPLICATE SAMPLE RESULTS AND RELATIVE PERCENT DIFFERENCE (RPD) REPORT Organic Lead in Soil by Flame AA EPA Method 7420 Date of Analysis: Sample Used: 02/13/90 D002238-01 Units: mg/Kg Maximum RPD, % Analyte Sample Result Dupl i cate Resul t RPD, % Organic Lead <0.25 <0.25 NA 20 NA = Not Applicable. GTEL Concord, CA D002253.DOC Page 6 of 6 '1 GTE L ... ~:B~I:A~:;~~EES~ ~~~. - GTEL e .- ENVIRONMENTAL LAB OR AT 0 R I E S. INC. Project Number: SFB-175-0204.72 consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 ~ork Order Number: D002254 Report Issue Date: February 16, 1990 Western Region 4080-C Pike Ln" Concord, CA 94520 (415) 685-7852 In CA: (800) 544-3422 Outside CA: (800) 423-7143 JEFF PALMER DAMES & MOORE 1320 E. SHAW AVE, SUITE 110 FRESNO, CA 93710 DEAR MR. PALMER: Attached please find the analytical results for the samples received by GTEL on February 10, 1990. GTEL maintains a formal quality assurance program to ensure the integrity of the analytical results. All quality assurance criteria were achieved during the analysis unless otherwise noted in the footnotes to the analytical report. The specific analytical methods used and cited in this report are approved by state and federal regulatory agencies. GTEL is certified for the analysis reported herein by the California State Department of Health Services under certificate number 194. If you have any questions regarding this analysis, or if we may service any additional analytical needs, please give us a call. Sincerely, GTEL Environmental Laboratories, Inc. Emma P. Popek Laboratory Director GTEL Concord, CA D002254.DOC Page 1 of 6 , e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002254 Report Issue Date: February 16, 1990 Table 1 ANALYTICAL RESULTS Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 SampLe Date Date Date Concentration, Identification Sa""Led Extracted Analyzed mg/Kg1 GTEl No. Cl ient ID 01 S-83-5 02/06/90 02/13/90 02/13/90 56 02 S-83-10 02/06/90 02/13/90 02/13/90 <5 03 S-83-15 02/06/90 02/13/90 02/13/90 7 04 S-83-20 02/06/90 02/13/90 02/13/90 <5 05 S-83-25 02/06/90 02/13/90 02/13/90 <5 06 S-83-30 02/06/90 02/13/90 02/13/90 <5 07 S-83-35 02/06/90 02/13/90 02/13/90 8 = Method detection limit = 5.0 mg/Kg; analyte below this levelwould not be detected. GTEL Concord, CA D002254.DOC Page 2 of 6 . --" ~-~ GTE!. ¡ ENVIRONMENTAL .- lABORATORIES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002254 Report Issue Date: February 16, 1990 CA Conformance Summary Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 1 .0 Blanks The method blank was below the detection limit as shown in Table 2. 2.0 Initial Instrument Calibration The range of concentrations of the initial instrument calibration are shown in Table 3. 3.0 Calibration Verification Standards 3.1 The control limits were met for the initial calibration verification standard (ICVS) as shown in Table 4. 3.2 The control limits were met for the continuing cal,ibration verification standard (CCVS) as shown in Table 4. 4.0 Matrix Spike (MS) Accuracy The control limits were met for the reference oil in the MS as shown in Table 5. 5.0 Sample Duplicate Precision Relative percent difference (RPD) criterion was met for the sample duplicate as shown in Table 6. GTEL Concord, CA D002254.DOC Page 3 of 6 ·'··..lGTEL .j ENVIRONMENTAL .. LABORATORIES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002254 Report Issue Date: February 16, 1990 Table 2 METHOD BLANK DATA Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 Date of Analysis: 02/13/90 Analyte Concentration, mg/Kg Oil and Grease <5 <# Not detected at the indi cated detecti on l imi t. Table 3 INITIAL CALIBRATION STANDARDS DATA Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 Date of Analysis: 02/13/90 Standard Number Concentration, mg/L 1 1.0 2 5.0 3 10.0 4 50.0 5 100.0 GTEL Concord, CA Page 4 of 6 D002254.DOC GTEL i ... ENVI~ONMENTAL LABO~ATO~ I ES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002254 Report Issue Date: February 16, 1990 Table 4 INITIAL AND CONTINUING CALIBRATION VERIFICATION STANDARDS RESULTS Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 Date of Analysis: 02/13/90 Initial Calibration Verification Standard Expected Result, Observed Result, Acceptability Analyte mg/L mg/L Recovery, % Limits, %1 Oil and Grease 5.0 5.2 104 80 - 120 Continuing Calibration Verification Standard Expected Result, Observed Result, Acceptability Analyte mg/L mg/L Recovery, % Limits, %1 Oi l and Grease 5.0 5.4 108 80 - 120 Acceptability limits are derived from the 99% confidence interval of all samples during the previous quarter. Table 4a INITIAL AND CONTINUING CALIBRATION VERIFICATION STANDARDS SOURCE Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 Initial Calibration Verification Standard Analyte Lot Number Source Oil and Grease R05/STK 25 GTEL Continuing Calibration Verification Standard Analyte Lot Number Source Oi l and Grease R04/STK 18 GTEL GTEL Concord, CA D002254.DOC Page 5 of 6 -.... ,~,." GTEL i J ... ENVIRONMENTAL lABORATORIES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CUC0244-9-X Facility Number: 9-1554 ~ork Order Number: D002254 Report Issue Date: February 16, 1990 Table 5 MATRIX SPIKE (MS) RECOVERY REPORT Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 Date of Analysis: Sample Spiked: 02/13/90 04 Cl ient ID: Units: S-B3-20 mg/Kg MS Sample Amount Amount MS, % Acceptability Analyte Result Result Recovered Added Recovery Limits, %1 Oil and Grease 53 <5 53 49 108 70 - 130 Table 6 LABORATORY DUPLICATE SAMPLE RESULTS AND RELATIVE PERCENT DIFFERENCE (RPD) REPORT Total Recoverable Oil and Grease in Soil by Infrared MODIFIED EPA Method 413.2 Date of Analysis: Sample Used: 02/13/90 04 Cl ient ID: Units: S-B3-20 mg/Kg Maximum RPD, % Analyte Sample Result Duplicate Result RPD, % Oil and Grease <5 <5 NA 20 NA Not applicable. GTEL Concord, CA D002254.DOC Page 6 of 6 .'0;.....,....... , ~ GTEL ... ENVIRONMENTAL LABORATORIES. INC. e GTEL e ... ENVIRONMENTAL lAB 0 RAT 0 R I E S. INC. Project NUDber: Consultant Project NUDber: Contract Number: Facil ityNumber: Work Order Number: Report Issue Date: SFB-175-0204.72 16000-232-044 N46C1JC0244-9-X 9-1554 D002255 February 15, 1990 Western Region 4080-C Pike Ln., Concord, CA 94520 (415) 685-7852 In CA: (800) 544-3422 Outside CA: (800) 423-7143 JEFF PALMER DAMES & MOORE 1320 E. SHAW AVE, SUITE 110 FRESNO, CA 93710 DEAR MR. PALMER: Attached please find the analytical results for the samples received by GTEL on February 10, 1990. GTEL maintains a formal quality assurance program to ensure the integrity of the analytical results. All quality assurance criteria were achieved during the analysis unless otherwise noted in the footnotes to the analytical report. The specific analytical methods used and cited in this report are approved by state and federal regulatory agencies. GTEL is certif ied for the analysis reported herein by the California State Department of Health Services under certificate number 194. If you have any questions regarding this analysis, or if we may service any additional analytical needs, please give us a call. Sincerely, ~~n:;;tal~oratories, Emma P. Popek ,~ Laboratory Director Inc. GTEL Concord, CA D002255.DOC Page 1 of 15 e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002255 Report Issue Date: February 15, 1990 Table 1 ANALYTICAL RESULTS Purgeable Hydrocarbons in Soil EPA Method 8240 Date Sampled 02/06/90 02/06/90 02/06/90 02/06/90 Date Analyzed 02/12/90 02/12/90 02/12/90 02/12/90 Cl ient Identification 5-B3-5 S-B3-10 5-B3-15 5-B3-20 GTEL Sample NlJT1ber 01 02 03 04 Detection Analyte limit, ug/Kg Concentration, ug/Kg Chloromethane 500 <500 <500 <500 <500 Bromomethane 500 <500 <500 <500 <500 Vinyl Chloride 500 <500 <500 <500 <500 Chloroethane 500 <500 <500 <500 <500 Methylene Chloride 250 <250 <250 <250 <250 Acetone 5000 <5000 <5000 <5000 <5000 Carbon Disulfide 250 <250 <250 <250 <250 1,1-Dichloroethene 250 <250 <250 <250 <250 1,1-Dichloroethane 250 <250 <250 <250 <250 trans-1,2-Dichloroethene 250 <250 <250 <250 <250 Chloroform 250 <250 <250 <250 <250 1,2-Dichloroethane 250 <250 <250 <250 <250 2-Butanone 5000 <5000 <5000 <5000 <5000 1,1,1-Trichloroethane 250 <250 <250 <250 <250 Carbon Tetrachloride 250 <250 <250 <250 <250 Vinyl Acetate 2500 <2500 <2500 <2500 <2500 Bromodichloromethane 250 <250 <250 <250 <250 1,2-Dichloropropane 250 <250 <250 <250 <250 cis-1,3-Dichloropropene 250 <250 <250 <250 <250 Trichloroethene 250 <250 <250 <250 <250 Oibromochloromethane 250 <250 <250 <250 <250 1,1,2-Trichloroethane 250 <250 <250 <250 <250 Benzene 250 <250 <250 <250 <250 trans-1,3-Dichloropropene 250 <250 <250 <250 <250 2-Chloroethylvinylether 500 <500 <500 <500 <500 GTEL Concord, CA D002255.DOC Page 2 of 15 lGT::L ~ ENVIRONMENTAL LABORATORIES. INC. e e Project Number: 5FB-175.-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002255 Report Issue Date: February 15, 1990 Table 1 (Continued) ANALYTICAL RESULTS Purgeable Hydrocarbons in Soil EPA Method 8240 Date Sampled 02/06/90 02/06/90 02/06/90 02/06/90 Date Analyzed 02/12/90 02/12/90 02/12/90 02/12/90 Client Identification S-83-5 S-B3-10 5-B3-15 5-B3-20 GTEL Sample Number 01 02 03 04 Detection Analyte L imi t, ug/Kg Concentration, ug/Kg Bromoform 250 <250 <250 <250 <250 4-Methyl-2-Pentanone 2500 <2500 <2500 <2500 <2500 2-Hexanone 2500 <2500 <2500 <2500 <2500 Tetrachloroethene 250 <250 <250 <250 <250 1,1,2,2-Tetrachloroethane 250 <250 <250 <250 <250 Toluene 250 <250 <250 <250 <250 Chlorobenzene 250 <250 <250 <250 <250 Ethylbenzene 250 <250 <250 <250 <250 Styrene 250 <250 <250 <250 <250 1,2-Dichlorobenzene 250 <250 <250 <250 <250 1,3-0ichlorobenzene 250 <250 <250 <250 <250 1,4-0ichlorobenzene 250 <250 <250 <250 <250 Xylene (total) 250 <250 <250 <250 <250 Trichlorofluoromethane 250 <250 <250 <250 <250 GTEL Concord, CA 0002255.DOC Page 3 of 15 "'1GTEL ENVIRONMENTAL .... lABORATORIES. INC. e . Project Number: SFB-175-0204.72 ConsuLtant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X FaciLity Number: 9-1554 Work Order Number: D002255 Report Issue Date: February 15, 1990 TabLe 1 (Continued) ANALYTICAL RESULTS PurgeabLe Hydrocarbons in SoiL EPA Method 8240 Date SampLed 02/06/90 02/06/90 02/06/90 Date AnaLyzed 02/12/90 02/12/90 02/12/90 CL ient Identification S-B3-25 S-B3-30 S-B3-35 GTEL SampLe Number 05 06 07 Detection AnaLyte Limit, ug/Kg Concentration, ug/Kg ChLoromethane 500 <500 <500 <500 Bromomethane 500 <500 <500 <500 Vinyl ChLoride 500 <500 <500 <500 ChLoroethane 500 <500 <500 <500 MethyLene ChLoride 250 <250 <250 <250 Acetone 5000 <5000 <5000 <5000 Carbon DisuLfide 250 <250 <250 <250 1,1-DichLoroethene 250 <250 <250 <250 1,1-DichLoroethane 250 <250 <250 <250 trans-1,2-Dichloroethene 250 <250 <250 <250 ChLoroform 250 <250 <250 <250 1,2-DichLoroethane 250 <250 <250 <250 2-Butanone 5000 <5000 <5000 <5000 1,1,1-Trichloroethane 250 <250 <250 <250 Carbon Tetrachloride 250 <250 <250 <250 Vinyl Acetate 2500 <2500 <2500 <2500 Bromodi ch Loromethane 250 <250 <250 <250 1,2-DichLoropropane 250 <250 <250 <250 cis-1,3-DichLoropropene 250 <250 <250 <250 TrichLoroethene 250 <250 <250 <250 DibromochLoromethane 250 <250 <250 <250 1,1,2-TrichLoroethane 250 <250 <250 <250 Benzene 250 <250 <250 <250 trans-1,3-DichLoropropene 250 <250 <250 <250 2-ChloroethyLvinylether 500 <500 <500 <500 GTEL Concord, CA D002255.DOC Page 4 of 15 ',. -"'\ GTEL .. EN V I RON M. EN TAL LABORATORIES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002255 Report Issue Date: February 15, 1990 Table 1 (Continued) ANALYTICAL RESULTS Purgeable Hydrocarbons in Soil EPA Method 8240 Date Sampled 02/06/90 02/06/90 02/06/90 Date Analyzed 02/12/90 02/12/90 02/12/90 Cl ient Identification 5-83-25 5-83-30 S-83-35 GTEL Sample Number 05 06 07 Detection Analyte L imi t ,ug/Kg Concentration, ug/Kg Bromoform 250 <250 <250 <250 4-Methyl-2-Pentanone 2500 <2500 <2500 <2500 2-Hexanone 2500 <2500 <2500 <2500 Tetrachloroethene 250 <250 <250 <250 1,1,2,2-Tetrachloroethane 250 <250 <250 <250 Toluene 250 <250 <250 <250 Chlorobenzene 250 <250 <250 <250 Ethylbenzene 250 <250 <250 <250 Styrene 250 <250 <250 <250 1,2-Dichlorobenzene 250 <250 <250 <250 1,3-Dichlorobenzene 250 <250 <250 <250 1,4-Dichlorobenzene 250 <250 <250 <250 Xylene (total) 250 <250 <250 <250 Trichlorofluoromethane 250 <250 <250 <250 GTEL Concord, CA D002255.DOC Page 5 of 15 ~]GTEL .. ENVIRONMENTAi LABORATORIES. INC. - e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46C~C0244-9-X Facility Number: 9-1554 Work Order Number: 0002255 Report Issue Date: February 15, 1990 QA Conformance Summary Purgeable Hydrocarbons in Soil EPA Method 8240 1.0 Blanks Zero of 39 target compounds found in Reagent water blank and MeOH blank as shown in Tables 2 and 2a. 2.0 Indeoendent QC Check Samele The control limits were met for 8 of 8 QC check compounds in the aqueous QC check sample as shown in Table 3. 3.0 SurrOQate Comoound Recoveries Recovery limits were met for all three surrogate compounds for all samples as shown in Tables 4a, 4b, and 4c. 4.0 Matrix Spike eMS) and Matrix Spike Dupl icate (MSD) Accuracy and Precision 4.1 Accuracy: Percent recovery limits were met for 10 of 10 compounds in the HS and MSD as shown in Table 5. 4.2 Precision: Relative Percent Difference (RPD) criteria were met for 5 of 5 compounds in the MS and MSD as shown in Table 5. 5.0 Samele Handling 5.1 Sample handling and holding time criteria were met for all samples. 5.2 There were no exceptional conditions requiring dilution of samples. GTEL Concord, CA D002255.DOC Page 6 of 15 GT~l. ... ENVIRONMENTAL LABORATORIES. INC. GTEL Concord, CA 0002255.00C e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: 0002255 Report Issue Date: February 15, 1990 Table 2 REAGENT WATER BLANK DATA Date of Analysis: purgeable Hydrocarbons in Soil EPA Method 8240 02/12/90 Analyte Observed Result, ug/Kg Chloromethane NO Bromomethane NO Vinyl Chloride NO Chloroethane NO Methylene Chloride NO Acetone NO Carbon Disulfide NO 1,1-0ichloroethene NO 1,1-0ichloroethane NO trans-1,2-0ichloroethene NO Chloroform NO 1,2-0ichloroethane NO 2-Butanone NO 1,1,1-Trichloroethane NO Carbon Tetrachloride NO Vinyl Acetate NO Bromodichloromethane NO 1,2-0ichloropropane NO cis-1,3-0ichloropropene NO Trichloroethene ND o ibromochloromethane ND 1,1,2-Trichloroethane NO Benzene NO trans-1,3-0ichloropropene NO 2-Chloroethylvinylether NO Page 7 of 15 GTEL ~ ENVIRONMENTAL lABORATORIES, INC. GTEL Concord, CA D002255.DOC e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002255 Report Issue Date: February 15, 1990 Table 2 (Continued) REAGENT WATER BLANK DATA Purgeable Hydrocarbons in Soil EPA Method 8240 Analyte Observed Result, ug/Kg Bromoform ND 4-Methyl-2-Pentanone ND 2-Hexanone ND Tetrachloroethene ND 1,1,2,2-Tetrachloroethane ND Toluene ND Chlorobenzene ND Ethylbenzene ND Styrene ND 1,2-Dichlorobenzene ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Xylene (total) ND Trichlorofluoromethane ND ND Not detected above the statistical detection limit. Page 8 of 15 .... G1~!. . .:' ., >, ....; ~,. - ENVIRONMENTAL LABORATORIES. INC. GTEL Concord, CA D002255.DOC e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002255 Report Issue Date: February 15, 1990 Table 2a REAGENT MEOH BLANK DATA Date of Analysis: purgeable Hydrocarbons in Soil EPA Method 8240 02/12/90 Analyte Observed Result, ug/Kg Chloromethane ND Bromomethane ND Vinyl Chloride ND Chloroethane ND Methylene Chloride ND Acetone ND Carbon Disulfide ND 1,1-Dichloroethene ND 1,1-Dichloroethane ., ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 2-Butanone ND 1,1,1-Trichloroethane ND Carbon Tetrachloride ND Vinyl Acetate ND Bromodichloromethane ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND Benzene ND trans-1,3-Dichloropropene ND 2-Chloroethylvinylether ND Page 9 of 15 GTEL - ENVIRONMENTAL LABORATORIES. INC. GTEL Concord, CA D002255.DOC e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 ~ork Order Number: 0002255 Report Issue Date: February 15, 1990 Table 2a (Continued) REAGENT MEOH BLANK DATA Purgeable Hydrocarbons in Soil EPA Method 8240 Analyte Observed Result, ug/Kg Bromoform ND 4-Methyl-2-Pentanone ND 2-Hexanone ND Tetrachloroethene ND 1,1,2,2-Tetrachloroethane ND Toluene ND Chlorobenzene ND Ethylbenzene ND Styrene ND 1,2-Dichlorobenzene ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Xylene (total) ND Trichlorofluoromethane ND ND Not detected above the statictical detection limit. Page 10 of 15 ìGTEL .. ENVIRONMENTAL lABORATORIES. INC. e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CUC0244-9-X Facility Number: 9-1554 Work Order Number: D002255 Report Issue Date: February 15, 1990 Table 3 INDEPENDENT QC CHECK SAMPLE RESULTS Purgeable Hydrocarbons in Soil EPA Method 8240 Date of Analysis: 02/06/89 Expected Result, Observed Result, Acceptability Analyte ug/Kg ug/Kg Recovery, % Limits, % Trichloroethylene 50 47 94 60-140 Carbon Tetrachloride 50 45 90 80-120 1,1,1-Trichloroethane 50 44 88 60-140 1,1,2-Trichloroethane 50 50 100 60-140 Vinyl Chloride 50 47 94 60-140 Benzene 50 47 94 60-140 1.1-Dichloroethylene 50 45 90 60-140 1.2-Dichlorobenzene 50 53 106 60-140 Table 3a INDEPENDENT QC CHECK SAMPLE SOURCE Purgeable Hydrocarbons in Soil EPA Method 8240 Analyte Lot Number Source Trichloroethylene LA19682 PURGEABLE A SUPELCO Carbon Tetrachloride LA19682 PURGEABLE A SUPELCO 1,1,1-Trichloroethane LA18769 PURGEABLE B SUPELCO 1,1,2-Trichloroethane LA18769 PURGEABLE B SUPELCO Vinyl Chloride LA20078 PURGEABLE C SUPELCO Benzene LA18769 PURGEABLE B SUPELCO 1,1-Dichloroethylene LA19682 PURGEABLE A SUPELCO 1,2-Dichlorobenzene LA19682 PURGEABLE A SUPELCO GTEL Concord, CA D002255.DOC Page 11 of 15 "-:1 GTE L ! ENVI~ONMENTAL LA80~ATO~IES. INC_ ... GTEL Concord, CA D002255.DOC e e Project Number: SFS-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46C~C0244-9-X Facility Number: 9-1554 ~ork Order Number: 0002255 Report Issue Date: February 15, 1990 Table 4a SURROGATE COMPOUND RECOVERY dB-Toluene Purgeable Hydrocarbons in Soil EPA Method 8240 Recovery Acceptability Limits1: 81 - 117 % Expected Result, Surrogate Result, Surrogate Recov- GTEL No. ug/L ug/L ery, % Water Blank 50 50 100 MeOH Blank 50 50 100 01 50 50 100 02 50 49 98 03 50 52 104 04 50 51 102 05 50 52 104 06 50 51 102 07 50 54 108 MS 50 52 104 MSD 50 52 104 MS = Matrix spike sample MSD = Matrix spike duplicate sample 1 = Acceptabil i ty l imi ts are derived from USEPA Contract Laboratory Program (CLP) requirements. Page 12 of 15 iGTEL .. E N V I RON M E ~ TAL lABORATORIES, INC. GTEL Concord, CA D002255.DOC e e Project Number: SFB-175-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46C~C0244-9-X Facility Number: 9·1554 ~ork Order Number: D002255 Report Issue Date: February 15, 1990 Table 4b SURROGATE COMPOUND RECOVERY BromofLuorobenzene Purgeable Hydrocarbons in Soil EPA Method 8240 Recovery Acceptability Limits1: 74 - 121 % Expected ResuLt, Surrogate Result, Surrogate Recov· GTEL No. ug/L ug/L ery, % Water Blank 50 49 98 MeOH Blank 50 47 94 01 50 47 94 02 50 49 98 03 50 50 100 04 50 51 102 05 50 50 100 06 50 49 98 07 50 51 102 MS 50 49 98 MSD 50 50 100 MS Matrix spike sample MSD Matrix spike duplicate sample 1 = Acceptability limits are derived from USEPA Contract Laboratory Program (CLP) requirements. Page 13 of 15 lGTEL I . ENVIRONMENTAL .. lABORATORIES. INC. GTEl Concord, CA D002255.DOC e e Project Number: SFB-115-0204.72 Consultant Project Number: 16000-232-044 Contract Number: N46CWC0244-9-X Facility Number: 9-1554 Work Order Number: D002255 Report Issue Date: February 15, 1990 Table 4c SURROGATE COMPOUND RECOVERY d4-1,2-Dichloroethane Purgeable Hydrocarbons in Soil EPA Method 8240 Recovery Acceptability limits1: 70 - 121 % Expected Result, Surrogate Result, Surrogate Recov- GTEl No. ug/l ug/l ery, % Water Blank 50 50 100 MeCH Blank 50 51 102 01 50 53 106 02 50 50 100 03 50 54 108 04 50 53 106 05 50 60 120 06 50 54 108 07 50 56 112 MS 50 55 110 MSD 50 58 116 MS = Matrix spike sample MSD = Matrix spike duplicate sample 1 Acceptabi l i ty l i mi ts are der i ved from USEPA Contract laboratory Program (ClP) requirements. Page 14 of 15 :GTEL .. ENVIRONMENTAL lABORATORIES. INC. . . . . .' Project NUJÐer: SFB-175-0204.12 Consul tant Project NUJÐer: 16000-232-044 Contract NUJÐer: N46CWC0244-9-X Facility NUJÐer: 9-1554 Work Order NUJÐer: D00225S Report Issue Date: February 15, 1990 Table 5 MATRIX SPIKE (MS) AND MATRIX SPIKE DUPLICATE (MSD) RECOVERY AND RELATIVE PERCENT DEVIATION (RPD) REPORT Purgeable Hydrocarbons in Soil EPA Method 8240 Date of Analysis: Sample Spiked: 02/12/90 04 Client ID: Units: S-B3-20 ug/Kg Sample Result Amount Added Analyte MS Result MSD Result 1,1-Dichloroethene ND 2500 2450 2400 T r i cM oroethene ND 2500 2250 2350 Benzene ND 2500 2200 2350 Toluene ND 2500 1950 2100 Chlorobenzene ND 2500 2000 2150 Acceptability Limits1 " MS, % MSD, % Maximum Analyte Recovery Recovery RPD, % RPD, % % Recovery 1,1-Dichloroethene 98 96 2 22 59-172 Trichloroethene 90 94 4 24 62-137 Benzene 88 94 7 21 66-142 Toluene 78 84 7 21 59-139 Chlorobenzene 80 86 7 21 60-133 ND = Not Detected above the statistical detection limit 1 = Acceptability limits are derived from USEPA Contract Laboratory Program (ClP) requirements. 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