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0 Table 5 Analytical Data Stockpiled Soil Former ARCO Service Station#4493 205 North Center Street Stockton,California TPH as STLC TCLP Sample Date Gasoline Benzene Toluene Ethylbenzene Xylenes MtBE Total Lead Total Lead Lead oil and Greese Name Sampled (mglkg) (mg/kg) (mg/kg) (mg/kg) m } (mglkg) (mg/kg) (mgA) (mgli) (mg/kg) SP-1" 2/25199 179 0.327 0.491 3.15 13.8 0.708 733 2.42 STP-3a 4113199 216 <0.100 <0.100 0.856 0.877 <1.00 75.6 2.67 - - SP-2e 2!25/99 203 0,353 0.603 3.53 16.2 <1.0 45.6 21.6 ND STP4s 4/13/99 38.5 0.0692 0.0712 0.293 1.43 <0.250 50.7 2.42 - STP-5B 5/25199 10.2 0.0205 0,0247 0.113 0.54 ND 55.1 15.8 ND - STP-68 5)25/99 12.9 0.0121 0.00810 0.0892 0.360 0.0510 49.8 - STP-76 5125199 7.87 0.00682 0.00582 0.0476 0.237 ND 25.5 - STP-8" 5125199 8.58 0.0155 0.0141 0.0762 0.391 ND 41.7 - .. _ STP-1 3/10199 229 0.144 <0.100 3.45 2.50 <1.0 11.7 - STP-2 4113/99 7.06 <0.005 0.0118 0.152 0.191 <0.05 <10.0 i WO-1 4113199 <1.0 <0.005/0.112c <0.005/0.201c <0.005/0.100c <0.005/0.143c <0.05 29.8" _ _ 186E TPH=Total petroleum hydrocarbons mglkg=milligrams per kilograms ND=Not detected A=SP-1 and SP-2 were four point composite samples collected from approximately 200 yards of soif genterated during the LIST removal. The stockpile was split into 100 yard piles and resampled.STP-3 correlates with sample SP-1. B=SP-1 and SP-2 were four point composite samples collected from approximately 200 yards of soil genterated during the LIST removal. The stockpile was split into 1 DO yard piles and resampled.STP-4 correlates with sample SP-2.Stockpile STP4 was split into four stockpiles of 25 yards. The four stockpiles were sampled and named STP-5,STP-6,STP-7,and STP-8. C=Method 8020/8420 D=Samples were analyzed for CAM 17 Metals.See analytical reports for results. E=Sample analyzed by EPA Method 8270.See analytical reports for results. 7GW04)22-01/Pul1 7!7199