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N <br /> TABLE 1: LABORATORY ANALYSES RESULTS FOR SOIL SAMPLES <br /> STOCKTON UNIFIED SCHOOL DISTRICT <br /> FRANKLIN HIGH SCHOOL <br /> HLI 0089003 <br /> Location' Sample Depthb TPH-G Benzene Toluene Ethylbenzene Xylenes Total Lead WET OVA` <br /> Number (ft) (mg/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (mg/Kg) Lead Reading <br /> (mg/L) (ppm) <br /> B-1 132 10 192W <2500 <2500 42,000 350,000 12.7 NA >1000 <br /> B-1 132R 10 1620° NA NA NA NA 13.7 NA >1000 <br /> B-1 1346 20 <0.05 <1 3 <1 5 NA <0.5 30 <br /> B-1 136 30 <5' 27 94 9 59 7.3 NA 67 <br /> B-1 136R 30 NA 26 96 10 68 NA NA 67 <br /> B-1 138 40 0.06 8 10 <1 17 10.6 NA 70 <br /> B-1 13SR 40 NA 6 7 <1 15 NA NA 70 <br /> B-1 150 50 <0.05 20 <1 <1 13 9.3 NA <5 <br /> B-2 153 15 <0.05 <1 <1 <1 <1 10,7 NA <5 <br /> B-2 154 20 <0.05 <1 <1 <1 <1 9.8 NA <5 <br /> B-3 157 15 <0.05 <1 <1 <1 <1 10.7 NA <5 <br /> B-3 158 20 <0.05 <1 <1 <1 <1 10 NA <5 <br /> Proposed Soil — 100 10,000 60,800 175,000 5,000 — — <br /> Threshold Levels° <br /> a. Refer to Figure 2 for approximate locations of soil borings. <br /> b. Depth below existing ground surface at time of sampling. <br /> C. Concentration In container headspace as measured in the field with a Foxboro Model 128 portable OVA equipped with a flame ionization detector. Concentrations are expressed in parts <br /> per million(ppm)by volume as methane equivalent. <br /> d. Sample shows the less volatile portion of gasoline. <br /> e. Sample analyzed after expiration of holding time. <br /> f. Higher detection limit due to presence of diesel fuel in sample. <br /> g. Proposed soil threshold levels are based on 100 times DOHS Maximun Contaminant Levels(for benzene,ethylbenzene and xylenes)and Applied Action Levels(for toluene)expressed as ug/Kg. <br /> TPH-G=Total Petroleum Hydrocarbons as gasoline(Volatile Petroleum Hydrocarbons identified as gasoline) <br /> NA=Not Analyzed <br /> "<"=Laboratory Limit of Detection <br /> "R"=Laboratory Quality Control Replicate <br />