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GeoAnalytical Laboratories, enc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> Report# L087-08 Date: 4/4/00 <br /> San Joaquin County Source. Date Recd: 3/27/00 <br /> PO Box 2009 Date Started: 3/31/00 <br /> Stockton CA 95201 Date Completed: 4/4/00 <br /> Project: Date Sampled: 3/17/00 <br /> Time: 12:30pm <br /> Sampler. D.Wilson <br /> Sample ID: 39-W11A <br /> Lab ID: L20683 <br /> Aquatic Toxicity <br /> Test Type: Polisini and Miller CDFG1988 Control 60 mg/L 125 mg/1.250 mg/1-500 mg/1.750 mg/L <br /> Dilution Water: Reconstituted DI Water Initial pH 7.56 7.49 7.49 7.51 7.50 7.49 <br /> Species: Pimephales Promelas 3/31/00 D.O. 8.61 8.42 8.36 8.29 8.22 8.18 <br /> Common Name: Fathead Minnow Temp.oC 21.0 21.0 20.9 20.9 20.9 21.0 <br /> Supplier: Aquatic Resources <br /> Dilution Volume: 10000 ml 24 Hrs. pH 7.53 7.48 7.45 7.51 7.47 7.47 <br /> #Fish per Dilution:20 4/1/00 D.O. 8.52 8.27 8.24 8.18 8.10 8.07 <br /> Dead in Acclimation Tank: 0 Temp.oC 22.9 21.9 22.0 22.1 22.0 22.0 <br /> Average Length: NA Mortalities 0 0 0 0 0 0 <br /> Average Weight: NA 48 Hrs. pH 7.47 7.43 7.44 7.49 7.47 7.45 <br /> 4/2/00 D.O. 8.41 8.17 8.15 7.98 7.89 8.83 <br /> Temp.oC 20.7 20.9 20.9 20.9 20.8 20.8 <br /> Mortalities 0 0 0 0 0 0 <br /> Initial Control Hardness 44 72 Hrs, pH 7.45 7.40 7.44 7.50 7.52 7.46 <br /> Final Control Hardness 44 4/3/00 D.O. 8.35 8.02 7.92 7.85 7.72 7.68 <br /> Temp.oC 21.5 21.7 21.6 21.6 21.6 21.7 <br /> Mortalities 0 0 0 0 0 0 <br /> 98 Hrs. pH 7.44 7.42 7.43 7.49 7.52 7.47 <br /> 4/4/00 D.O. 8.17 7.82 7.69 7.62 7.52 7.48 <br /> Temp.oC 21.8 21.8 21.8 21.9 22.0 22.0 <br /> Mortalities 0 0 0 0 0 0 <br /> Total Mortalities 0 0 0 0 0 0 <br /> Notes <br /> There were no significant mortalities in this test LC50 >750mg/L. <br /> '-` Ramirnado Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />