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Table 1 <br /> Groundwater Analytical Data <br /> Parkinson's Arco <br /> 3250 West Hammer Lane <br /> Stockton,California <br /> Top of <br /> Casing Depth to Groundwater TPH as Ethyl- Tert-Butyl <br /> Sample Date Elevation Water Elevation Gasoline Benzene Toluene benzene Xylenes MtBE DIPE ETBE TAME Alcohol <br /> Identification Sampled (MSL) (feet b s) (MSL) (ug/1) u 1) (u 1) (u 1) (u 1) (ug/1) (UL) (u 1) (u 1) (u l) <br /> MW-1 09/21/00 4.30 12.96 -8.66 25,700 1,820 503 1,450 582 28,300 <2.0 2.92 108 3,710 <br /> 01/19/01 12.90 -8.60 2,250 178 10 155 244 34,200 <2.0 2.60 215 3,910 <br /> MW-2 09/21/00 4.74 13,23 -8.49 52.9 <0.5 <0.5 <0.5 <0.5 5,830 <2.0 ' <2.0 45 1.,150 <br /> 01/19/01 13.23 -8.49 <500 <5.0 <5.0 <5.0 <5-0 21,600 <2.0 <2.0 168 2,520 <br /> MW-3 09/21/00 3.76 12.34 -8.58 5,900 41.3. 24.3 56.2 468 346 <2.0 <2.0 2.08 <200 <br /> I; 01/19/01 12.30 -8.54 1,870 18.2 5.82 12.9 23.1 682 <2.0 <2.0 4.43 <200 <br /> 4 ugll Micrograms per liter <br /> MSL Mean sea level <br /> bgs Below ground surface <br /> TPH Total petroleum hydrocarbons <br />'I MtBE Methyl tert-butyl ether <br /> DIPE Diisopropyl ether <br /> ETBE . Ethyl-t-butyl ether <br /> TAME Tert-amyl methyl ether <br /> I EDB Ethylene dibromide <br />