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Geo*halytical Laboratories,`hic. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> Report# K333-07 Date: 12/10/99 <br /> San Joaquin County D.A., EPU Source: Date Recd: 11/29/99 <br /> 222 E.Weber Avenue Date Started: 12/3/99 <br /> Stockton CA 95202 <br /> Date Completed: 12/7/99 <br /> Project: Date Sampled: 11/17/99 <br /> Time: 11:15am <br /> Sampler: L.Briggs/A.Youngblood <br /> Sample ID: Replicate <br /> Lab ID: K23664 <br /> Aquatic Toxicity <br /> Test Type: EPA/600/4-90/027F Control 10 mg/L 50 mg/L 100 mg/1-250 mg/1-500 mg/L <br /> Dilution Water: Reconstituted DI Water Initial pH 7.69 7.69 7.28 6.78 6.03 5.81 <br /> Species: Pimephales Promelas (Larval) 12/3/99 D.O. 8.66 8.35 8.24 8.05 7.75 7.68 <br /> Common Name: Fathead Minnow Temp.°C 19.2 19.3 19.2 19.1 19.3 19.4 <br /> Supplier: Aquatic Resources <br /> Dilution Volume: 2000 ml 24 Hrs. pH 7.65 7.64 7.25 6.76 6.09 5.68 <br /> #Fish per Dilution:20 12/4/99 D.O. 8.53 8.25 7.96 7.61 7.48 7.35 <br /> Dead in Acclimation Tank: 0 Temp.°C 19.3 19.5 19.7 19.8 19.9 19.4 <br /> Average Length: NA Mortalities 0 2 4 3 7 4 <br /> Average Weight: NA 48 Hrs. pH 7.61 7.61 7.21 6.73 6.03 5.68 <br /> 12/5/99 D.O. 8.43 7.74 7.59 7.32 7.17 6.88 <br /> Temp.°C 19.4 19.5 19.4 19.7 19.8 19.6 <br /> Mortalities 0 1 4 3 1 2 <br /> Initial Control Hardness 80 72 HCS. pH 7.58 7.56 7.20 6.68 6.28 5.62 <br /> Final Control Hardness 80 12/6/99 D.O. 8.25 7.63 7.00 6.93 6.37 6.05 <br /> Temp.°C 20.2 20.2 20.3 20.1 20.2 20.3 <br /> Mortalities 0 1 0 2 0 3 <br /> 96 Hrs. pH 7.58 7.52 7.21 6.64 6.25 5.58 <br /> 12/7/99 D.O. 8.07 7.18 6.42 6.50 6.07 5.71 <br /> Temp.°C 19.1 19.2 19.4 19.4 19.5 19.1 <br /> Mortalities 0 0 0 0 2 0 <br /> Total Mortalities 0 4 8 8 10 9 <br /> Notes <br /> A <br /> �o Salgado Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />