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TABLE3 <br /> HISTORICAL GRAB GROUNDWATER ANALYTICAL RESULTS <br /> Parkinson's 1-5 Hammer ARCO <br /> 3250 West Hammer Lane,Stockton,California <br /> Sample Depth TPHG Benzene Toluene Ethyl-benzene TotalMTBE TAME TBA <br /> Sample-ID (feet bgs) Date Collected (pg/L) (pg/L) (pg/L) (pg/L) Xylenes WIL) (pg/L) (pg/L) <br /> GP-1 -- 08/16/00 <50 <0.5 <0.5 <0.5 <0.5 1,880 18.4 <200 ` <br /> GP-2 08/16/00 8,240 1,940 <50 411 873 47,000 188 4,300 <br /> GP-3 08/15/00 <500 <5.0 <5.0 <5.0 <5.0 37,600 268 7,030 ` <br /> GP-4 08/15/00 <506 <0-5.4!ft6 5;Q-5L5',6 SOrSC ;0 <0-5-1,15,0 8,430 83 4,260 <br /> GP-5 08/16/00 <50 <0.5 <0.5 <0.5 <0.5 281 <2.0 <200 <br /> CPT-] 25 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-] 32 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-1 42 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-1 55 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-2 27 09/02/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-2 45 09/02/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-2 64 09/02/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-2 87 09/02/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-3 25 09/02/03 <50 <0.50 <0.50 <0.50 <1.0 7,600 60 <250 <br /> CPT-3 45 09/02/03 <50 2.5 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-3 57 09/02/03 <50 13 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-3 84 09/02/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-4 25 09/03/03 370[1] <0.50 1.9 0.79 <1.0 12,000 76 <250 <br /> CPT-4 61 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-4 67 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 <br /> CPT-4 88 09/03/03 <50 <0.50 <0.50 <0.50 <1.0 <5.0 <5.0 <50 �- <br /> Explanation <br /> TPHG=Total petroleum hydrocarbons as gasoline(a.k.a.gasoline range organics[GRO]) <br /> MTBE=Methyl tertiary butyl ether <br /> TBA=Tertiary butyl alcohol <br /> D1PE=Di-isopropyl ether <br /> ETBE=Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> EDB=1,2-Dibromoethane <br /> 1,2-DCA=1,2-Dichloroethane <br /> µg/L=micrograms per liter <br /> --=Not applicable,or not available <br /> Notes <br /> Samples GP-l.through GP-5 also analyzed for DIPE and ETBE---all results-below reporting limit(<2.0);except ETBE of 5.]8.µg/1 at GP-2> <br /> Samples from CPTs also analyzed for DIPS,ETBE, 1,2-DCA and EDB--all results below reporting limits(<5.0) <br /> [1]indicates the concentration was within gasoline range,but chromatogram not consistent with expected gasoline chromatographic pattern. <br /> i <br /> Work Plan Addendum REVISED Table 2,Table 3.xls page 1 of 1 <br />