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08/02/99 MON 15 47 FAX 916 858 0605 IT Corporation/RC Q003 <br /> ill. Soil Remedlation Information <br /> Soil remediation methods Excavation & Disposal <br /> Volume treated and/or removed 70 Tons <br /> Contaminated soil disposal stle Foreward Landf ill <br /> If contamination is remaining, describe concentration range and volume (cubic yards or <br /> meters) <br /> 14.3 Cubic Meters ' <br /> Table Ill•Maximum documented contaminant concentrations In @oil before and after deanuP <br /> Contaminant Method Before After Depth Contaminant Method Before After Depth <br /> used (mWkg) ("101141) 00 used (mgrkg) (mWkg) (� <br /> TPH(sae) 8015 15000 3.8 5 Ben <br /> 48 ND 10 <br /> TPH(Diesel) Toluerw 8020 590 ND <br /> Other fuel Ett►trlhenxar» 8020 250 ND in <br /> Heavy metals Xylene 8020 1404 .0087 25 <br /> Other otharg. BE 18260 1 3.9 5.0081 28 <br /> IV. Groundwater Remedlation Information <br /> Groundwater remediation method(s) voNF <br /> Volume treated and/or removed N/A <br /> If contamination is remaining, descnbe concentration range and volume (gallons or liters) <br /> TPH-g range ND to 500 uall , benzene ND al: detection limit pf 2 -0 itall) <br /> Table IV-Maximum documented contaminant concentrations in groundwater before and after cleanup <br /> Contaminant Method Before After Depth Contaminant Method Before After Depth <br /> used (mgm (mgll) (M used (► 0) (mgll) (n) <br /> TPH(Gas) 8015 7.4 0.5 14.14 Semens 8020 0.00051 ND 14 14 <br /> TPH(Diesel) ToWens 8020 ND ND 14 14 <br /> Other fuel E"Wenxeno 8020 0.004 ND 14 14 <br /> Heavy metals xylene 8020 0 0065 ND 14.14 <br /> other other MtBE 8260 0.0016 ND 14.14 <br /> V. Closure <br /> Does Regional Board concur with closure? Yes No <br /> Rationale for closure <br /> Location of reports on file (Agency/Room) X <br /> County_ _ Staff person Phone <br /> Regional Board ofd Staff person Phone <br /> GOR Chektlst wp 29 June 1994 <br />