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GeotnalY tical Laboratories, enc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209)572-0900 Fax (209) 572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> Report# L164-11 Date: 6/27/00 <br /> San Joaquin County Environmental Health Source: Date Rec'd: 6/12/00 <br /> 304 E.Weber 3rd Floor Date Started: 6/13/00 <br /> Stockton CA 95202 Date Completed: 6/17/00 <br /> Project: G&L Brock Construction 4145 Calloway Ct Stockton Date Sampled: '-'6/9/00 <br /> Time: <br /> Sampler: AhsoAtoungblood <br /> Sample ID: Ay 6-9B, Ay 6-9A _- <br /> Lab ID: L21615,L21616 <br /> {V .'i <br /> Aquatic Toxicity env <br /> N <br /> += J <br /> Test Type: Polisini &Miller CDFG 1988 Control 62.5mg/L 125 mg/1-250 mg/1-500 mg/1-750 mg/L <br /> Dilution Water: Reconstituted DI Water Initial pH 7.44 7.35 7.26 7.18 7.14 7.05 <br /> Species: Pimephales Promelas (Juvenile) 6/13/00 D.O. 8.58 8.49 8.35 8.19 8.06 7.99 <br /> Common Name: Fathead Minnows Temp.°C 20.5 20.4 20.7 20.5 20.5 20.7 <br /> Supplier: Aquatic Resources <br /> Dilution Volume: 20000 ml 24 HCS. pH 7.37 7.34 7.22 7.15 7.08 6.94 <br /> #Fish per Dilution:20 6/14/00 D.O. 8.36 8.20 8.18 8.03 7.84 7.73 <br /> Dead in Acclimation Tank: <1% Temp.°C 20.4 20.4 20.6 20.7 20.7 20.6 <br /> Average Length: 34 mm Mortalities 0 0 0 0 1 0 <br /> Average Weight: 0.46 g 48 HCS. pH 7.30 7.28 7.15 7.07 7.01 6.82 <br /> 6/15/00 D.O. 8.25 7.94 7.86 7.75 7.62 7.52 <br /> Temp.°C 19.7 19.9 19.8 19.9 19.9 20.0 <br /> Mortalities 0 0 0 0 0 0 <br /> Initial Control Hardness 42 72 HCS. pH 7.31 7.21 7.05 7.02 6.92 6.74 <br /> Final Control Hardness 42 6/16/00 D.O. 7.89 7.77 7.55 7.34 7.26 7.18 <br /> Temp.°C 20.0 20.3 20.3 20.5 20.4 20.5 <br /> Mortalities 0 1 0 0 0 0 <br /> 96 HCS. pH 7.22 7.19 7.00 6.88 6.78 6.58 <br /> 6/17/00 D.O. 7.62 7.47 7.36 6.96 6.99 6.83 <br /> Temp.°C 21.1 21.0 20.8 21.0 20.8 20.8 <br /> Mortalities 0 0 0 0 0 0 <br /> Total Mortalities 0 1 0 0 1 0 <br /> Notes <br /> There were no significant mortalities in this test. LC50 >750 mg/L <br /> Arniro Salgad o <br /> Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />