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I <br /> TABLE 2 - RESULTS OF LABORATORY ANALYSIS: GASOLINE TANK <br /> STOCKTON UNIFIED SCHOOL DISTRICT TRANSPORTATION CENTER <br /> ELI 00817 <br /> i <br /> Location' Sample Depth TPH-G Benzene Toluene Ethyl- Xylenes Total METE OVA <br /> (feet) (mg/Kg} (UVKg) (ug/Kg) benzene (ug/Kg) Lead ppm <br /> (ung) (mfg) <br /> Tank Samples: <br /> Excavation <br /> T-1 633 15 <1 <5 <5 <5 <5 NA <5 190 <br /> 634 IS <1 <5 <5 <5 <5 NA <5 3 <br /> 635 I4' 691 <150 <I50 <150 1,700 NA <150 30 ' <br /> T-2 636 13 <I <5 <5 <5 <5 4.5 <5 2.4 <br /> 637 13 <1 <5 <5 <5 <5 4.6 <5 1.2 <br /> Stockpile: <br /> M' S-1 to .S-4 605-8 -- <I <5 <5 <5 <5 4.9 <5 1.8 -2-3 <br /> S-5 to S-7 609- - <1 <5 <5 <5 <5 6.8 <5 2.2-3.0 <br /> 61I <br /> a. OVA, measurements reflect container headspace vapor concentrations measured by Foxboro <br /> 128 Refer to Figure 3 for location of tank samples. <br /> b. OVA. Meausrements reported as parts per million(ppm)as methane equivalent. Ambient levels <br /> varried between 1.4 and 1.6 ppm. <br /> TPH-G =Total Petroleum Hydrocarbons as gasoline <br /> <"=Laboratory Limit of Detection <br /> NA=Not Analyzed <br /> I - <br /> I <br />