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09/09/2002 08:47 5720916 GEOANALYTICAL L"^ PAGE 01 <br /> GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209) 572-0900 Fax(209) 572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> Date- 9/6/02 <br /> Report 0 N227.24 <br /> San Joaquin County Environmental Health Date Rec'd: 8/15/02 <br /> source: Date Started: 6/27/02 <br /> 304 E.Weber 3rd Floor Date Completed:8/31/02 <br /> Stockton CA 95202 <br /> Date Sampled: <br /> PFvject: Time: <br /> Sampler: <br /> Sample ID: 31244 RT.33 <br /> Lab ID: N201997 <br /> Aquatics TOXICRv <br /> Test Type: 96hr static acute Control 40 mg/L 50 mg/L 60 mg/L 70 mg/L 80 mg/L <br /> Dilution Water: Reconstiuted DI water Initial pH 7.5 7.5 7,4 7.5 7,5 7.5 <br /> Species: Pimephales Prorneia5 B/27!02 O.O. 8.4 8.5 8.6 8.5 8.5 8.4 <br /> Temp.°C 20.9 20.8 20.8 20.8 20.9 20.9 <br /> Common Name' Fathead Minnow <br /> Supplier. Thomas Fish Company <br /> Dilution Volume: 20,000ml 24 Hirs. PH 7.4 7.4 7.4 7.5 7.4 7.4 <br /> #Fish per Dilution:20 8128/02 D.O. 8-1 8.0 8-1 8.1 7.8 8.0 <br /> r'-Qd in Acclimation Tank: <1% Temp.°C 21.3 21.2 21.3 21.4 21.3 21.3 <br /> age Length: 38 mm Mortalities 0 2 2 3 4 4 <br /> Average Weight 0.46g 48 Hrs. PH 7.3 7.4 7.3 7.4 7.4 7.4 <br /> 8129/02 D.O. 7.8 7.4 7.5 7.7 7.8 7.6 <br /> Temp.°C 21.4 21.3 21.3 21.3 21.3 21,4 <br /> Mortalities 0 0 1 C 0 1 <br /> Initial Control Hardness 44 72 Hrs. pH 1.4 7.4 7.3 7.4 7.3 7.4 <br /> Final Control Hardness 44 8130102 D.O. 7.6 7.4 7.1 7.9 7.4 7.7 <br /> Temp.°C 20.7 20.6 20.6 20.5 20.6 20.6 <br /> Mortalities 0 0 0 0 0 0 <br /> 90 Hrs. pH 7.3 7.3 7.3 7.4 7.3 7.4 <br /> 8131/02 D.0- 7.3 7.3 6.7 7.3 7.1 7.4 <br /> Temp.°C 21.2 21.1 21.2 21.1 21.1 21.1 <br /> Mortalities 0 0 0 0 0 0 <br /> Total Mortalities 0 2 3 3 4 5 <br /> Notes <br /> Using the EPA Oribut Analysis Program the est. LC50 Value based on mortalities is 71.8 Mg/L. <br /> it `o�ay Do elle <br /> Donna Keller <br /> Inorganic Supervisor Certification # 1157 Laboratory Director <br />