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1 <br /> ' 07 June 2006 <br /> AGE-NC Project No 97-0351 <br /> ' Page 2 of 4 <br /> ' samples from each well were transferred into three Environmental Protection Agency (EPA)- <br /> approved, 40-milliliter (ml) volatile organic analysis (VOA) vials containing 0 5 ml 18% <br /> hydrochloric acid solution as a sample preservative The samples were labeled with the monitoring <br /> ' well designation, date, time of sampling, and the sampler's initials and transported in a chilled <br /> container under chain of custody to Cal Tech Environmental Laboratories(CTEL),a Department of <br /> Health Services (DIIS)-certified analytical laboratory in Paramount, California The samples were <br /> ' analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> ' method 8015M, and <br /> Benzene, toluene, ethylbenzene,and total xylenes (BTEX) and fuel additives tertiary butyl <br /> ' alcohol (TBA), di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), tertiary-amyl <br /> methyl ether(TAME),methyl tertiary-butyl ether(MTBE), 1,2-dibromoethane(EDB), and <br /> 1,2-dichloroethane (1,2-DCA) in accordance with EPA method 9260B <br /> 1 <br /> 2 3 PURGE WAFER DISPOSAL <br /> ' On I 1 April 2006, American Valley Waste Oil, Inc of Dclhl, C_allfornla pumped approximately <br /> ' 295 gallons of purge water from drums on-site A copy of the non-haiardous '�\astc manifest is <br /> included in Appendix C <br /> ' 3 4. FINDINGS <br /> ' 6round \\ater elc\at[on and flo\k direction were Inferred from field data hydrocarbon impact to <br /> ground Aater \;vas quantified by laboratory anal st,, of thL ground water samples <br /> ' 3 1 ORt}l Nl) W1'A I I R CiRAI)I1 N 1 ASI) 11 OV MR1 C I IU'\ <br /> ' 1 he LIL\atlon of ground \\atcr In each of the monitoring \\ells 4\ati calculated b5uhtracting the. <br /> depth to ground water from the Sur\Ly cd relatt\e Lasing ele\atlon,,( 1 able 1) Depths to ground\\ate l <br /> ranged from 5 77 feet(NINA'-2)to 6 85 feet(MW-5)heIwN the tops ofthe well caSingS Ground v%ate r <br /> ' LIL\atton at the tittc ringed Irom 2 62 feet(MVV-7) to 3 73 lect(MVL-4)abo\c mean sca IL\L1 (%4"SI ) <br /> and a\eraged apprommatcl\ 3 39 lcet aho\L MS1 India-atnng an tncrLasc to elmat[on of <br /> appromi-natel, 0 02 I-eLt StnLL thL la,,t ground \�atc' [non[toring L\Ant In Januan 2006 During thr, <br /> ' 1120111tO,"Inc L\Lilt il'l tJ \4tL' LIC` afl[]Ilti \i Lr,_ t.i1ht,1 tt1L 4LrtLnLd MtL at5 QI tt]L X%C111, <br /> {ll{1Ccltln�.; tl]�t t114 \1L�15 �llt� ti+_itlll�LIllt)lZLll` �(1 \ fl'1Cl I.?[L)LInL� \\a1Cl ti4[11��1LS tLF�1�4�I1_If �' [)� <br /> ' Id in !4 kol mi -+ntr c i I�lt <br />