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samples will be analyzed for Total Petroleum Hydrocarbons as <br /> Diesel (TPH-D) using EPA Methods 3550/8015; Total Petroleum <br /> Hydrocarbons as Gasoline (TPH-G) , benzene, toluene, total <br /> xylenes, and ethylbenzene ( BTX&E) using EPA Methods 5030/8015- <br /> 8020; and Total Lead using ICAP or AA. <br /> Drill cuttings will be placed on visqueen, covered, and stored <br /> on site pending receipt of laboratory analyses and the develop- <br /> ment of an appropriate disposal procedure. <br /> Quality control of samples will be assured through the <br /> ' acquisition of split/duplicate samples as required by PHD/EHD. <br />' REMEDIATION PROTOCOL <br /> Those soils which may be safely excavated, will be removed <br /> and brought to grade with an appropriate excavator and <br /> configured for on-site biological detoxification using forced-air <br /> composting. . .a process which has proven to be efficient and <br /> cost effective, and one which provides for thorough control <br /> and destruction of hydrocarbon vapors. <br /> Based upon proprietary experience and considerable research <br /> data, we are confident that fuel hydrocarbons are subject to <br /> complete, aerobic degradation by a variety of soil bacteria <br /> and fungi . This process would mineralize the hydrocarbon <br /> contaminants to form the non-toxic end products of carbon <br />' dioxide, minerals, and water. If the soil is to be utilized <br /> as engineered fill subsequent to treatment, bacterial inoculum <br /> and soil amendments may be applied as a liquid. If this is <br />' not the case, a select form of mushroom compost can be added. <br /> This material has been demonstrated to be a superior bulking <br /> agent, source of non-pathogenic hydrocarbon utilizing bacteria, <br /> nutrients, buffering agents , and moisture. <br /> As appropriate (generally every 7-14 days ) , the soil under <br /> treatment would be monitored/sampled to acquire data regarding <br /> 1 rates of contaminant degradation, intermediate product formation, <br /> biological activity, and soil chemistry. Much of this data <br /> may be developed using uncertified analyses; such as thin layer <br /> chromatography and liquid to liquid extraction. Samples <br /> requiring certified analyses, such as those collected for <br /> confirmation of the success of the treatment process, would <br /> be acquired and analyzed as specified by PHS/EHD. <br />' Please see Appendix "A" for additional information regarding <br /> ex-situ bioremediation processes . <br /> 3 . <br /> I <br />