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TABLE 1 <br /> EXTRACTED GROUNDWATER ANALYTICAL DATA <br /> Chevron Service Station 9-1452 <br /> 334 East Main Street <br /> Ripon California <br /> Sample ID Date TPHg Benzene Toluene Ethyl- Total MtBE TBA TAME Methanol <br /> benzene Xylenes <br /> (µ811) (µ9I1) 419/1) (µg11) (µg/l) (µ911) (491I) <br /> MW-8 Initiala 11/18/03 770 <0 5 <0 5 <0 5 <0 5 11,000 190 660 890 <br /> 12/04/03 1 500 <10 <10 <10 <10 19 000 980 1,000 <200 <br /> 01/16/04 1,400 <5 <5 <5 <5 20,000 690 1,200 <240 <br /> 02/17/04 1800 <10 <10 <10 <10 20,000 1,200 1200 310 <br /> 03/18104° <50 <0 5 <0 5 <0 5 <0 5 950 53 85 <200 <br /> 04115104e 280 <3 <3 <3 <3 4,200 57 240 <200 <br /> MW-8 Finals 11/18/03 1 100 <0 5 <0 5 <0 5 <0 5 16,000 400 960 1,300 <br /> 12/04/03 1 500 <10 <10 <10 <10 18 000 860 1,100 <200 <br /> 01/16/04 2,600 <10 <10 <10 <10 34 000 1 500 2,000 <200 <br /> 02/17/04 1 700 <10 <10 <10 <10 22 000 1 000 1,300 <200 <br /> 03!18/04` 1200 <13 <13 <13 <13 18 000 750 1,100 <200 <br /> 04115104` 1,400 <13 <13 <13 <13 19,000 1,300 1,100 <200 <br /> MW-8 Batcha 11/18/03 1 100 <0 5 <0 5 <0 5 <0 5 16 000 440 950 900 <br /> 12/04/03 1,400 <10 <10 <10 <10 23,000 870 1000 490 <br /> 01/16/04 1 600 <5 <5 <5 <5 23 000 890 1,400 <200 <br /> 02/17/04 1,500 <10 <10 <10 <10 20 000 920 1,200 <200 <br /> 03118104° 1,400 <13 <13 <13 <13 19,000 750 1100 <200 <br /> 04/151040 1,500 <13 <13 <13 <13 19,000 1,300 1,200 <200 <br /> Explanations <br /> µg11 =Micrograms per liter <br /> TPHg =Total petroleum hydrocarbons as gasoline <br /> MtBE =Methyl tertiary butyl ether <br /> TBA =Tertiary butyl alcohol <br /> TAME =Tertiary amyl methyl ether <br /> Initial =Sample collected from well MW 8 with disposable bailer prior to batch groundwater extraction <br /> Rnal =Sample collected from well MW 8 with disposable bailer after batch groundwater extraction <br /> Batch =Sample collected from tank of vaccuum truck with disposable baiter following completion of batch groundwater extraction <br /> Notes <br /> a =Samples also analyzed for ethyl tertiary butyl ether(ELBE) di isopropyl ether(PIPE) ethanol ethylene dibromide(EDB) and <br /> 12 dichloroethene(1-2 DCA) Analytes not detected at or above method detection funds <br /> b =Initial sample referred to as Pre sample on chain of custody <br /> c =Final sample referred to as Post sample on chain of custody <br /> d =Batch sample referred to as Tank sample on chain of custody <br /> e =Batch sample referred to as VacTruck sample on chain-of custody <br /> 1\Chevron\91452\ReporIJBatch ExtraetiorvBatch Extraction Results As 1 of 1 <br />