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' III. Soil Remediation Information ' <br /> Soil remediation method(s) Sol ! UAnor Extraction and Excavation <br /> Volume treated and/or removed 190 lbs and 175 cubic yards <br /> Contaminated soil disposal site Forward Landfill , Manteca , CA <br /> If contamination is remainir g, describe concentration range and volume (cubic yards or meters) <br /> ' N/A , <br /> Table M - Maximum documented contaminant concentrations in sod before and after cleanup <br /> ' Conta mart Method Before After Depth Conttamma_t Method Before Afar Depth i <br /> used (mglk8) (mgnP) (ft) used (mg/k8) (mg/kg) (ft) <br /> ' TPH (Gas) 8015 13 100 N/A* Bene 8020 2.6 N/A* <br /> TPH (D1eseI) 8015 20,000 N/A* ( Toluene 8020 45 N/A* <br /> Other fuel Ethylbcnzeae 8020 43 N/A* <br /> Heavy metals 7421 13 N/A* Xylene 8020 290 N/A* <br /> ' Other Other - <br /> IV.I° rouu�w Or' ifein11atioa 11 or ation� <br /> ' Groundwater remediation method(s) passive remediation <br /> Volume treated and/or removed N/A <br /> ' If contamination is remaining, describe concentanon range and volume (gallons or liters) <br /> TPHd 72 ppb less than 0.001 gallons r <br /> Table rV- Maximmnn documented contaminant concentrations in groundwater before and after cleanup <br /> r <br /> Contzzn ant Method Before I After Depth Con-roinant Method Before After Depth <br /> ' used (mom) (mom) (ft) used (mg/1) (mss) U* <br /> TPH (Gas) 8015 1 1.6 1<0.05 Benzene 8020 L 0.0005 t 0.0005 <br /> ' TPH (Dlcscl) 8015 0.33 0.072 Taluena 8020 0.0029 4.0.0005 -- <br /> Other fuel Ethylbcazcnc 8020 0.0068 c 0.0005 <br /> Heavy metals Xyleaa 8020 0.0310 00.0005 <br /> Other Other <br /> ' V. Closure - - -- <br /> Does Regional Board concur with closure? Yes No { <br /> ' Rationale for closure <br /> r <br /> ocatzon of reports on file (Agency/Room) <br /> County Staff person Phone <br /> Regional Board office Staff person Phone F <br /> ' SHR Chckjt=wp 14 Sepu=,bQ 1993 ' <br />