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CHROMALAB, INC . <br /> i <br /> Environmental Laboratory(1094) 5 DAYS TURNAROUND <br /> December 11, 1992 ChromaLab File No. : 1292053 <br /> Page 2 of 2 <br /> PACIFIC GAS & ELECTRIC COMPANY <br /> Attn: D. Klingman <br /> RE: Twenty-eight soil samples for Gasoline and BTEX analysis <br /> Project Name: THORNTON DEHYDRATOR <br /> Project Number: 60007193-UA-TESA <br /> Date Sampled: Dec. 2-4 , 1992 Date Submitted: Dec. 4 , 1992 <br /> Date Analyzed: Dec. 9-10, 1992 <br /> RESULTS: <br /> Ethyl Total <br /> Sample Gasoline Benzene Toluene Benzene Xylenes <br /> I .D. (mg/Kq) (uq/Kg) (uqf Kg) (aglKq) (gq/Kq) <br /> B-12 @ 2 . 0 FT N.D. N.D. N.D. N.D. N.D. <br /> B-12 @ 7 . 5 FT N.D. N.D. 8 . 2 N.D. N.D. <br /> B-13 @ 3 . 0 FT N.D. 9 . 4 7 . 0 N. D. N.D. <br /> B-13 @ 9 . 0 FT 62 N.D. * N.D. * N.D. * N.D. * <br /> B-14 @ 3 . 0 FT 26 16 10 35 260 <br /> B-14 @ 9 . 0 FT 4 . 9 N.D. N.D. 30 300 <br /> BLANK N.D. N.D. N.D. N.D. N.D. <br /> SPIKE RECOVERY 89% 82% 101% 78% 80% <br /> DUP SPIKE RECOVERY ---- 86% 111% 84% 85% <br /> DETECTION LIMIT 1. 0 5. 0 5. 0 5. 0 5 . 0 <br /> METHOD OF ANALYSIS 5030/8015 8020 8020 8020 8020 <br /> *Detection limit = 200 µg/Kg due to dilution needed. <br /> ChromaLab, Inc. , <br /> Eric Costa Eric Tam <br /> Analytical Chemist Laboratory Director <br /> cc <br /> B-2 <br /> 2239 Omega Road,#1 0 San Ramon, California 94583 <br /> (510) 831-1788 • Facsimile (510) 831-8798 <br /> Federal ID #68-0140157 <br />