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CHROMALAB, INC. <br /> S DAYS TURNAROUND <br /> Anaiytical Laboratory(E694) <br /> August 2, 1991 ChromaLab File No. : 0791204 <br /> MITTELHAUSER CORPORATION <br /> Attrn: Marjorie Bushnell <br /> RE_ Fourteen soil samples for Gasoline/BTEX and Oil & Grease <br /> analyses <br /> Project Name: UNOCAL TRACY <br /> Project Number: P1745-01 <br /> Date Sampled: July 23, 24 ,25, 1991 Date Submitted:July 26, 1991 <br /> Date Extracted: 7/30-8/1/91 Date Analyzed: 7/30-8/1/91 <br /> ESLTLTS; <br /> Sample Ethyl Total Oil & <br /> P Gasoline Benzene Toluene Benzene Xylenes Grease <br /> No. m k k k k k m k <br /> 1745B6-2 .0' ---- --__ _ <br /> 1745B7-3 -51 1.g 140 N D- --�'- 70 <br /> N.D. 19 N.D. <br /> 174587-9 .D' <br /> N.D. N.D. N.D. N.D. N.D. <br /> 1745B8-2 .5' <br /> 745B8-6. 0' N.D. N.D. N.D. <br /> N.D. N.D. N D. N.D. <br /> OIX745BB-10. 01 N.D. N.D. N.D. N.D. N.D. <br /> 1745B9-3 .5' ---- ----- 33-- <br /> 1745B9-9 .5' 3400 11000 44000 37000 170000 <br /> 1745B10-5. 5' 7.8 170 N.D. 280 9.5 ---- <br /> 1745B10-9 . 5' 580 620 470 4900 16000 -'-- <br /> 1745B11-5. 0' N.D. N.D. N.D. N.D. N.D. _ - <br /> 1745B11-9. 5' N.D. N.D. N.D. N.D. N.D. _--- <br /> 1745B12-3 .5' ---- ---- <br /> 1745B12-5. 5" <br /> --_1745B12-5. 5' N.D. N.D. N.D. N.D. N.D. N.D. <br /> BLANK N.D. N.D. N.D. N.D. N.D. N.D. <br /> SPIKE RECOVERY 97.8% 87.9$ 94.7% 92.6% 90.4% <br /> DUP SPIKE REC. 94 .9% 89. 6% 91.4% 92 . 6-t 92.8% ---- <br /> DETECTION LIMIT 1. 0 5 .0 5.0 5.0 5.0 10 <br /> METHOD OF 5030/ 5520 <br /> ANALYSIS 8015 8020 8020 8020 8020 E&F <br /> ChromaLab, Inc. <br /> D)qa v2iV Duong Eric Tam <br /> Chef Chemist Laboratory Director <br /> 2239 Omega Road, 81 • San Ramon, California 94583 <br /> 5101831-1788 - Facsimile 510/831-8798 <br /> Federal 10 968-0140157 <br />