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CLEARWATER <br /> G R O U P;' :I N C. <br /> 2.1 Sampling'and,Removal of Stockpiles'On ; <br /> the basis of calculations and visual observations, there, are an estimated. <br /> 500-600 cy of.soilstockpiled on the.:ea_st side'of the property.• Clearwater-will <br /> use a.five-foot-long • hand, auger .'to obtain soil samples .from within the <br /> stockpile. The soil-wilI be disposed of at the Forward_ , Inca (Forward)Landfill, <br /> a Class III landfill located southeast,of Stockton: <br /> In accordance with Forward's waste acceptance`criteria, Clearwater will collect <br /> one four-�point composite. sample.per 100 cy (approximately 6 samples-. from. <br /> the large stockpile).- Each sample will be, collected and ,analyzed for the <br /> following,chemical coristituents: <br /> • TPHg (EPA Method 8015 Modified) <br /> Total petroleum hydrocarbons as diesel fuel' (TPHd; EPA Method 8015. <br />' Modified) <br /> • BTEX (EPA Method 8020 Modified) _ <br /> ' <br /> -Total Lead. <br /> One four-point composite sample will be collected from the'stockpile adjacent <br /> to the waste oil .excavation: The composite sample will be analyzed for: <br /> • <br /> TP Hg (EPA,Method 5030/8015) <br />�. •` TPHd (EPA Method,3550/8015) <br /> Total Oil and,Grease (EPA Method 418.1 or SM 5520) <br /> • Volatile Organic Compounds (EPA Method.8260) <br /> Semi-volatile•Organic Compounds (EPA Method 8270) <br /> • . Total Cd; Cr, Pb, Ni Zn <br /> Clearwater will have the'soil hauled to the landfill by a licensed trucking firm` <br /> upon'acceptance by Forward. <br /> 2 Excavation Shoring, Backfilling, and Compaction <br /> Clearwater will. either shore the walls of'the large ,excavation a <br /> I g and remove <br /> additional soil from it, or backfill . -the -.excavation and remediate the <br /> remaining contaminated'. soil in situ: •A cost .,comparison wilt be made "to <br /> evaluate which of these remediation methods is more cost effective'. <br /> D7105WP-7/95 <br /> C5 <br />