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TABLE It LABORATORY ANALYSES RERLLTS FOR SOIL SAl1FI f5 <br /> STOCCTON UNIFIED SCHOOL DISTRICT <br /> FRANHO_IN HIGH SCHML <br /> HLI 0089003 <br /> OYAc <br /> b TPH-G Benzene Toluene Ethylbenzena Xylenes Total Lead Leaead Readinq <br /> Location Sample DBPth (mg/L) (Ppm) <br /> Number (ft) (u9/Kg) (u9/K9) (u4/Kg} (u9/Kg) (m9/Kg) — <br /> ..•,nn - 19 7 NA X1000 <br /> l0 1920• <2500 <2500 42,000: 3SO.000 13.7 NA >1000 <br /> B-1 132 1620• NA NA NA NA NA <0.5 30 <br /> B-1 134 <0�5 3 -Cl 5 NA 67 <br /> B-1 59 7.3 67 <br /> B-1 136 30 <5 27., 96 10 68 NA MA <br /> 8_1 136R 30 NA 26;.` 96, cl 17 10.6 NA 70 <br /> 138 4D 0.06 B.: 10; NA NA 70 <br /> B-1 4D NA 6 7,, <1 13 9.3 NA c5 <br /> 1SOR _ <br /> H3 1 150 50 <0.05 r c1 <1 1 70.7 NA <5 <br /> 1 15 <0.05 <1 �1 <1 <1 9.,8 NA <5 <br /> B-2 154 20 <0.05 <l c5 <br /> 5-2 <1 <1 10.7 NA <br /> 8-3 157 15 •31.05 <1 <1 <1 <1 10 NA <5 <br /> B-3 <br /> 158 20 -0.05 <br /> proposed Soil -- <br /> 100 10,000 60,800 175,000 5,000 -- -- <br /> Threshold Levelsg <br /> a. Refer to Figure 2 for approximate locations of soil borings. <br /> b. Depth below existing ground surfaco at time of sampling. <br /> c. Concentration in container headspace as measured in the field with a 1°axbcro Model 128 portable OVA equipped with a flame ionization detector. <br /> Concentrations are expressed in parts per million (ppm) by volume as methane equivalcant. <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 prasence of diesel fuel in sample. <br /> g, proposed soil threshold levels are based on 100 tires DOHS Maximun Contaminant Levels (for benzene, ethyl benzene ane xylenes) and Applied Action Levels (for <br /> toluene) expressed as ug/Kg. <br /> TPH, r <br /> • Total Petroleum Hydrocarbons as gasoline (Volatile petroleum Hydrocabons identified as gasoline) <br /> NA = Not Analyzed <br /> <" = Laboratory Limit of Detection <br /> "R" Laboratory Quality Control Replicate <br />