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APR-28-94 THU 17:03 CONDOR EAR'T'H TECH FAX NO 2095320773 F. W <br /> rte_.... <br /> rn WORTS PLAN <br /> " POTENTLOLL LY CONTAMINATED sons <br /> EL RANCHO ROCK&SAND, INC_ QUARRY RECLf 1W1A.TZc�N <br /> PAGE 5 <br /> 3.5 Materials S <br /> tc�x-.�je��, ,,,.. typcicpiles <br /> Contaminatc4 iii,ftmVorarily ruined on-site in approved sealed starage <br /> containc:s, or aaa mat imperious surface, in a ban'caded area. Stockpiles will <br /> be covered wilt coagmutated materials will be protected from <br /> volatilization unto j tmtment or disposal. <br /> 3.6 Materials DiTosal <br /> Condor urill investi&a'moahwnafives for disposal or remediation for any contaminated <br /> materials encouniceed'O[�sift during implementation of the approved Reclamation Plan_ <br /> Recommendations will be presented to El Rancho Rock &Sand, Enc. and the Department <br /> of EnvironmertW Health.fear the review and approval. Condor will not sign Manifests <br /> far the transport and disposal of said materials. <br /> 4.0 LABORATORY ANALYSIS <br /> Potentially cont hated mateciais encountered during the recla.rnation operations can be <br /> analyzed by the following methods, for the following ,general groups of contaminants: <br /> • Suspected or apparent pelaulcum hydrocarbons in soil <br /> Soil samples will be analyzed for benzene, toluene, ethyl benzene & xylene <br /> (13TEX) by EPA Method 8020, for total petroleum hydrocarbons, quantified as <br /> gasoline O?H-G) by Method 5030/LUF£, and total extractable hydrocarbons, <br /> quantified as diesel, kerosene and motor oil ('YEPH) by Method 3550/LUFT, <br /> + Suspected oz apparent petroleum hydrocarbons in concrete <br /> Concrete samples will be:crushed to form a soil-like material. These samples will <br /> then be analyzed for total extractable hydrocarbons, quantified as diesel, kerosene <br /> and motor oil H) by Method 3550fLurT. <br /> Unknown compounds <br /> Unknown compounds can often be very difficult to identify if there is no <br /> indication of the type of contamination, Laboratory procedures are set up to <br /> analyze for concentrations of particular compounds, not to determine what type <br /> of unknown compound is present. Field screening and indications of prior site <br /> activities in the particular location where the Contamination is encountered, <br /> therefore, will be used to determine which laboratory tests should be performed. <br /> Likely laboratory testing of soil samples that could be performed for screening <br /> A,4* <br /> caNnolt <br />