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, <br /> Ta� <br /> Summary of Discrete Groundwater Sample Analytical Results <br /> from Soil Borings and Cone Penetrometer Tests <br /> Chevron 9 2033 <br /> 508 West Charter Way <br /> Stockton,California <br /> Sample Sample Depth Date TPHg Benzene Toluene Ethylbenzene Xylenes MtBE Ethanol Methanol EtBE TAME TBA 1,2-DCA DSA DIPE <br /> Name (feet bgs) Sampled (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (u9A) (ugA) (ugA) <br /> SB 2,46 5" 465 08/31/00 790 21 48 35 20 <05 <50 <0 5 <0 5 11 13 — <br /> SB-2 54' 54 08/31/00 3,100 370 96 60 62 <1 0 <100 <1 0 <1 0 20 <1 0 <br /> SB 2 82* 82 08/31/00 <50 16 <0 50 <0 50 <0 50 <0 50 60 <0 50 <0 50 <5 0 <0 50 <br /> SB 3 35* 35 09/01/00 42,000 10,000 23 3,300 2,800 46,000 -- <50 000 320 280 3,800 130 — — <br /> SB 3,62 5' 625 09/01/00 170 10 <0 50 39 38 160 — <50 <0 50 078 23 44 — — <br /> SB 3 86 5" 865 09/01/00 <50 1 3 <0 50 <0 50 <0 50 60 — <50 <0 50 <0 50 <5 0 <0 50 <br /> SB 4,44* 44 09101100 840 22 1 2 64 10 20 — <50 <0 50 <0 50 34 053 — — <br /> SB-4 56` 56 09/01/00 1,200 84 1 8 45 16 44 — <50 <0 50 <0 50 12 <0 50 - - <br /> SB-4 83" 63 09/01/00 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <0 50 <5 0 <0 50 - <br /> SB 5,42" 42 05/17/01 100,000 6900 16000 1400 8200 <25 <250 <5000 <25 <25 <250 <25 <25 <25 <br /> SB 5 81" 81 05/17/01 5000 41 1301,CF 'bI 73 460 <0 50 <20 <50 <0 50 <0 50 <5 0 1 7 069 <0 50 <br /> ' <br /> SB-6,38` 38 05/17/01 180 <0 50 <0 50 j<0 50 <0 50 19 <5 0 <50 <0 50 <0 50 17 081 <0 50 <0 50 <br /> SB 6 53" 53 05/17/01 3200 180 27 Y 43 110 <1 0 <10 <100 <1 0 <1 0 <10 <1 0 <1 0 <1 0 <br /> SB-6,63" 63 05/17/01 590 76 45 10 81 <0 50 <20 <50 <0 50 <0 50 82 <0 50 <0 50 <0 50 <br /> SB 7 58' 58 5117101 3100 250 12 21 74 <2 0 <20 <200 <2 0 <2 0 31 <20 <2 0 <20 <br /> SB-7 87" 87 5117/01 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <5 0 <50 <0 50 <0 50 <5 0 <0 50 <0 50 <0 50 <br /> SB8,35" 35 5117101 580 1 6 <0 50 <0 50 <0 50 280 <10 <700 42 1 8 25 18 <0 50 <0 50 <br /> SB-8,58" 58 5117101 <50 30 <0 50 093 <0 50 27 <5 0 <50 <0 50 <0 50 <50 <0 50 <0 50 <0 50 <br /> ugA=Micrograms per liter <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> MtBE=Methyl tertiary butyl ether <br /> EtBE=Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> TBA=Tertiary butyl alcohol <br /> I) 1 2 DCA=1 2 Dichloroethane <br /> DIPE=Dusoprapyl ether <br /> bgs=below ground surface <br /> =Samples were analyzed using EPA Method 8260B <br /> i <br /> results in bold are analytes detected above the laboratory method reporting limit <br /> I <br />