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i <br /> I <br /> I <br /> TABLE 5 <br /> GROUNDWATER SAMPLE ANALYTICAL RESULTS <br /> PG&E LATHROP GAS DEHYDRATOR STATION <br /> SAN JOAQUIN COUNTY, CALIFORNIA <br /> Sample Date TPH-MO TPH-D TPH-K TPH-G Benzene Toluene Ethylbenzene Xylenes <br /> I.D. Sampled (µ8/-) (ASI-) (JAg/L) (Ill/-) ()Ll/-) (µf/-) (149/L) (ag/L) <br /> -1 1/1 < <500 47,000 150 < <0.5 1. <br /> B-2 11/25/92 <500 <50 19,000 5,600 13 <0.5 22 6.4 <br /> B-3 11/25/92 <500 <50 26,000 4,100 12 <0.5 30 18 <br /> B-4 11/25/92 <500 <50 33,000 6,500 9.2 <0.5 29 <1.5 <br /> B-5 11/25/92 <500 <50 <50 <50 1.2 <0.5 <0.5 <1.5 <br /> B-6 11/25/92 <500 <50 <50 <50 <0.5 <0.5 <0.5 <1.5 <br /> B-7 11/25/92 <500 740 <50 <50 <0.5 <0.5 <0.5 <1.5 <br /> B-8 11/25/92 <500 <50 <50 <50 <0.5 <0.5 <0.5 <1.5 <br /> B-9 11/25/92 <500 <50 3,600 510 1.3 <0.5 <0.5 <1.5 <br /> NOTES: 1. All groundwater samples analyzed by Chromalab(San Ramon). <br /> 2. Samples B-2 through B-9 represent groundwater grab samples collected from temporary well casing <br /> installed in the boreholes. The well casings were subsequently removed and the borcholes were abandoned <br /> with grout. <br /> 3. < = Less than stated detection limit. <br /> 4. TPH-MO = Total Petroleum Hydrocarbons as motor oil (EPA method 3510/8015). <br /> 5. TPH-D = Total Petroleum Hydrocarbons as diesel(EPA method 3510/8015). <br /> 6. TPH-K = Total Petroleum Hydrocarbons as kerosene (EPA method 3550/8015). <br /> 7. TPH--G = Total Petroleum Hydrocarbons as gasoline (EPA method 5030/8015). <br /> 8. Benzene Toluene Eth Ibenzene and X lenes analyzed by EPA method 602. <br />