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CHROMALAB, INC. <br /> 5 DAYS TURNAROUND <br /> Analytical Laboratory(E694) <br /> July 29, 1991 ChromaLab File No. : 0791209 <br /> MITTELHAUSER CORPORATION <br /> Attn: Marjorie Bushnell <br /> RE: Two rush soil samples for Gasoline/BTEX analysis <br /> Project Name: UNOCAL - TRACY <br /> Project Number: P1745-01 <br /> Date Sampled: July 23-24, 1991 Date Submitted: July 26, 1991 <br /> Date Extracted: July 26, 1991 Date Analyzed: July 26, 1991 <br /> RESULTS: <br /> Ethyl Total <br /> Sample Gasoline Benzene Toluene Benzene Xylenes <br /> No. m k k k K k <br /> 1745 T1 2 .3 23 200 59 530 <br /> 1745 T2 N.D. N.D. N.D. N.D. N.D. <br /> BLANK N.D. N.D. N.D. N.D. N.D. <br /> SPIKE RECOVERY 94.9$ 89.6% 91. 4% 92 . 6% 92 .8% <br /> DETECTION LIMIT 1.0 5. 0 5.0 5. 0 5. 0 <br /> METHOD OF 5030/ <br /> ANALYSIS 8015 8020 8020 8020 8020 <br /> ChromaLab, Inc. <br /> 4ie <br /> ' uong iTamf Chemist Laboratory Director <br /> 2239 Omega Road, #1 • San Ramon, California 94583 <br /> 4151831-1788 • Facsimile 415/831-8798 <br /> • Federal ID#68-0140157 <br /> I <br />