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GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209)572-0900 Fax (209)572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> Report# Q078-08 Date: 3/30/04 <br /> San Joaquin County Environmental Health Source. Date Recd: 3/18/04 <br /> 304 E.Weber 3rd Floor Date Started: 3/24/04 <br /> Date Completed:3/28/04 <br /> Stockton CA 95202 <br /> Project: Date Sampled: 3/12/04 <br /> Time: 3:45pm <br /> Sampler: <br /> Sample ID: 1A <br /> Lab ID: Q200368 <br /> Aquatic Toxicity <br /> Test Type: 96hr Static Acute Control 62.5mg/L 125 mg/1-250 mg/1-500 mg/1-750 mg/L <br /> Dilution Water: Reconstituted DI Water Initial pH 7.5 7.4 7.4 7.5 7.5 7.6 <br /> Species: Pimephales Promelas 3/24/04 D.O. 8.5 8.8 8.6 8.3 8.4 8.5 <br /> Common Name: Fathead Minnow Temp.°C 20.2 20.3 20.2 20.1 20.2 20.2 <br /> Supplier: Thomas Fish Company <br /> Dilution Volume: 20,000 24 Hrs. pH 7.4 7.5 7.5 7.5 7.5 7.6 <br /> #Fish per Dilution:20 3/25/04 D.O. 8.1 8.4 8.2 7.8 8.0 8.4 <br /> Dead in Acclimation Tank: <1 % Temp.°C 21.1 21.0 21.1 21.0 21.0 21.2 <br /> Average Length: 41 Mortalities 0 0 0 0 0 1 <br /> Average Weight: 0.51 48 Hire. pH 7.4 7.5 7.4 7.6 7.6 7.6 <br /> 3/26/04 D.O. 7.9 7.9 8.4 8.2 7.9 8.0 <br /> Temp.°C 20.5 20.6 20.5 20.5 20.5 20.5 <br /> Mortalities 0 0 0 0 0 0 <br /> Initial Control Hardness 45 72 Hrs. pH 7.4 7.5 7.5 7.6 7.6 7.6 <br /> Final Control Hardness 45 3/27/04 D.C. 8.2 8.3 8.3 7.9 7.8 7.9 <br /> Temp.°C 20.4 20.2 20.2 20.3 20.3 20.3 <br /> Mortalities 0 0 0 0 0 1 <br /> 96 Hrs. pH 7.4 7.5 7.5 7.6 7.6 7.6 <br /> 3/28/04 D.O. 8.4 8.4 8.0 7.7 7.5 7.3 <br /> Temp.°C 20.1 20.1 20.2 20.2 20.3 20.3 <br /> Mortalities 0 0 0 0 0 0 <br /> Total Mortalities 0 0 0 0 0 2 <br /> Notes <br /> There were no significant mortalities observed in this test. <br /> &k <br /> yt^d1 <br /> Kanti Gandhi Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />