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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686.9600 • FAX (510) 686-9689 <br /> Alton Geoscience Client Project ID: 04-343/34-136-01 Sampled: Nov 26, 1991 <br /> 1000 Burnett Ave. Suite 140 Matrbc Descript: Water Received: Nov 27, 1991 <br /> Concord, CA 94520 Analysis Method: EPA 3510/8015 Extracted: Dec 5, 1991 <br /> Attention: Tridib Guha First Sample 111-1351 Analyzed: Dec 6, 1991 <br /> Reported: Dec 9. 1991 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS (EPA 8015) <br /> Sample Sample High B.P. <br /> Number Description Hydrocarbons <br /> pg/L <br /> (ppb) <br /> 111-1351 AW-1* 480 <br /> 111-1352 AW-2• 99 <br /> I <br /> 111-1353 AW-3 2,600 <br /> I <br /> 111-1354 AW-4* 100 <br /> • 111-1355 AW-5* 370 <br /> 111-1356 AW 6* 170 <br /> 111-1357 AW 7* 300 <br /> 111-1358 AWB* 100 <br /> Detection Limits: so <br /> High Boiling point Hydrocarbons are quantitated against a diesel fuel standard. <br /> Analytes reported as N.D.were not present above the stated lirnit of detection. <br /> SEQUOIA ANALYTICAL Please Note <br /> 0 The above samples do not appear to contain diesel. <br /> High Boiling Point Hydrocarbons are due to several unidentifiable peaks. <br /> 4�xleffo Revised r :December 16. 1991 <br /> Protect Manager <br /> 111MIALG a2> <br /> i <br />