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Enviro - Chem, Inc. <br /> 1214 E. Lexington Avenue, Pomona, CA 91766 Tel (909) 590-5905 Fax (909) 590-5907 <br /> LABORATORY REPORT <br /> CUSTOMER: Alta EM, Inc. <br /> 8300 Utica Avenue, Third Floor <br /> Rancho Cucamonga, CA 91730 <br /> Tel (909) 476-2120 Fax(909) 476-6819 <br /> PROJECT: Sierra Lumber / 483-01 <br /> MATRIX:WATER DATE RECEIVED: 06/14/04 <br /> SAMPLING DATE:06/11/04 DATE ANALYZED: 06/14/04 <br /> REPORT TO:MR. ROBERT HANSEN DATE REPORTED: 06/16/04 <br /> EPA 5030B/8260B FOR BTEX <br /> UNIT: uG/L = MICROGRAM PER LITER = PPB <br /> ---------------------------------------------------------------- ------ <br /> SAMPLE ETHYL- TOTAL <br /> I.D. LAB I.D. BENZENE TOLUENE BENZENE XYLENES DF <br /> B1 040614-1 468 602 652 4350 10 <br /> B2 040614-2 ND ND ND 5 . 16 1 <br /> B3 040614-3 11600 25300 4490 23200 100 <br /> B4 040614-4 3 .30 49 .4 19 .6 117 1 <br /> B5 040614-5 ND ND ND ND 1 <br /> B6 040614-6 ND 2 .42 1 .40 10 . 8 1 <br /> B7 040614-7 ND ND ND ND 1 <br /> B8 040614-8 ND ND ND ND 1 <br /> Method Blank ND ND ND ND 1 <br /> PQL 1.00 1.00 1. 00 3 . 00 <br /> COMMENTS: <br /> DF = DILUTION FACTOR <br /> PQL = PRACTICAL QUANTITATION LIMIT <br /> ACTUAL DETECTION LIMIT = DF X PQL <br /> ND-= NON-DETECTED-OR BELOWTHEACTU ETECTION LIMIT <br /> - ----------------------------- <br /> Data Reviewed and Approved by:— <br /> CAL-DHS ELAP CERTIFICATE No. : 1555 <br />