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4. <br /> which will be pressed into the soil in the backhoe bucket. The ends will be <br /> sealed with teflon or aluminum foil , capped, placed in sealed zip lock <br /> bags, and immediately placed in an insulated cooler for delivery to the <br /> laboratory. <br /> Immediately after collection, the samples will be transported to the State <br /> ' Certified Canonie Analytical Laboratory located in French Camp, California <br /> and analyzed within 48 hours. The samples will be analyzed for the <br /> ' following constituents: <br /> Leaded Gas . . . . . . . . 602 BTXBE (Benzene, Toluene, Xylene) <br /> ' 8015 TPH (Total Petroleum Hydrocarbons) <br /> 7421 TEL (Tetraethyl lead) <br /> 8010 EDB (Ethylene dibromide) <br /> The need for additional excavation and resampling shall be determined by <br /> the results of the soil analyes. <br /> Once the excavation has been determined to be adequate and the removal of <br /> contaminated materials complete, backfilling will occur. The details of <br /> the fill and compaction methods are outlined in Section 2.5.1. <br /> 2.4 Inerting the Tank <br /> The tank will be inerted using dry ice. The fill neck or man-way cover on <br /> ' the tank will be removed and crushed dry ice will be placed in the tank. <br /> Dry -ice will be added at a minimum of 15 pounds per 1000 gallons of tank <br /> volume. The inerting procedure will continue until organic vapors are less <br /> ' than 10 percent of the lower explosive limit of methane. An explosimeter <br /> will be used to confirm that the vapors have been purged to this limit. A <br /> 1 local fire marshall will verify that the tank is safe for removal . <br /> CanoftieEnvironmental <br />