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a 11 041y 1 0 -- 9 1 F R I 1 5 1 0 4 1 S — :E3 3 1 — e 7 <br /> =t <br /> G H RO M ALA B 5 I N C• 5 DAYS TURNAROUND f <br /> Analytical Laboratory(E694) <br /> May 10, 1991 ChromaLab File No. : 0591022 <br /> ALTON GEOSCIENCE, INC. <br /> to tni Tri,dib Guha <br /> RE. Seven soil samples for Gasoline/BTEX and Diesel analyses <br /> Project Name: MOBIL BULK PLANT, TRACY <br /> E. Project Number: 30-136 <br /> Date Sampled: 4/30-5/1/91 Date Submitted: 4/30-5/1/91 <br /> Date Extracted: May 6-9, 1991 Date Analyzed: May 6-9, 1991 <br /> RESULTS;, <br /> Ethyl Total <br /> sample Gasoline Diesel Benzene Toluene Benzene Xylenes <br /> NO. (ma/ka) (mg/kal (Uglkcg) (ug/ka) . (ug k_g) (ug./_ka) <br /> h��5B-2SS1 N.D. 180 N.D. N.D. N.D. 38 <br /> B 2SS2 N.D. 5.4 N.D. N.D. N.D. N.D. <br /> kk-'yB-3SS1 N.D. N.D. N.D. N.D. N.D. N.D. <br /> SB-4SS1 N.D. N.D. N.D. N.D. N.D. N.D. <br /> AWA B-4SS2 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Aw-JB-9SS1 N.D. N.D. N.D. N.D. N.D. N.D. <br /> B-9SS2 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 REC. 105.4% 89.8% 86.2% 90.7% 87.4% 88.5% <br /> DUP SPIKE REC 102.5% 90.8% 99. 0% 99.7% 107.4% 102.2% <br /> DET. LIMIT 1.0 1. 0 5.0 5.0 5.0 5.0 <br /> METHOD OF 5030/ 3550/ <br /> ANALYSIS 8015 8015 8020 8020 8020 8020 <br /> ChromaLab, Inc. <br /> Av d Duong Eric Tam <br /> Ik Chief Chemist Laboratory Director <br /> k <br /> I <br /> . 22,39 Omega Road,#1 Sen Ramon,California 94583 <br /> 415/831-1788 Facsimile 4161831.8798 <br /> r Federal ID 068-0140157 <br />