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0 . <br /> North State Environmental <br /> Chemical Waste Disposal • Trucking - Consulting <br /> CERTIFICATE OF ANALYSIS <br /> Quality Control/Quality Assurance <br /> Lab Number : 98-563 <br /> Cl _ent : Semco <br /> Project : RMC Lonestar <br /> Dare Reported: 05/29/98 <br /> Diesel Range Hydrocarbons by Method 8015 M <br /> Benzene, Toluene, Ethy?benzene and XVLenes by Method 8020 <br /> Repo_r_ng MS/MSD <br /> Analyte Method Li:11_.. Jit_ 3—ank Recovery R°D <br /> Benzene 8C2C . 005 ma/Kg ND 105 <br /> Ethvibenzene 8(V'20 . 005 -ng/Nq Na` 3 <br /> To_uene 8020 . 005 ma/Kg ND 9' 41 <br /> Xy=--nes 8020 . 00 ma/ Cg ND 90' 3 <br /> Diesel 8015M 1 . 0 mg/:Cg ND 122 z <br /> 1 <br /> ELAP Certificate N0: 1753 <br /> Reviewed and Approved <br /> 2age 4 of 4 <br /> John A.Murphy,Laboratory Directo r <br /> P. 0 . Box 5624 • South San Francisco . California 94083 630-533-2333 FAX 533 - 1950 <br />