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GeotalY tical Laboratories Inc. <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: Alison Youngblood <br /> Sample ID: Ay 6-9D, Ay 6-9E Replicate <br /> Lab ID: L21617,L21618 <br /> Aquatic Toxicity <br /> Test Type: Polisini&Miller CDFG 1988 Control 62.5mg/L 125 mg/L 250 mg/L 500 mg/L 750 mg/L <br /> Dilution Water: Reconstituted DI Water Initial pH 7.41 7.29 7.13 6.99 6.84 6.62 <br /> Species: Pimephales Promelas (Juvenile) 6/13/00 D.O. 8.11 8.19 8.06 8.02 8.11 8.09 <br /> Common Name: Fathead Minnows Temp.°C 20.4 20.5 20.5 20.6 20.5 20.4 <br /> Supplier: Aquatic Resources <br /> Dilution Volume: 20000 ml 24 HCS. pH 7.36 7.21 7.10 6.88 6.65 6.43 <br /> #Fish per Dilution:20 6/14/00 D.O. 7.99 8.08 7.88 6.52 6.79 7.53 <br /> Dead in Acclimation Tank: <1% Temp.°C 20.8 20.8 20.8 20.9 20.8 21.0 <br /> Average Length: NA Mortalities 0 0 0 0 0 0 <br /> Average Weight: NA 48 HCS. pH 7.29 7.18 7.12 6.67 6.52 6.27 <br /> 6/15/00 D.O. 7.76 7.93 7.65 6.45 6.51 7.36 <br /> Temp.°C 20.4 20.6 20.6 20.5 20.6 20.7 <br /> Mortalities 0 0 0 0 0 0 <br /> Initial Control Hardness 44 72 Ht's. pH 7.25 7.08 7.03 6.49 6.43 6.05 <br /> Final Control Hardness 44 6/16/00 D.O. 7.58 7.77 7.48 6.26 6.35 7.04 <br /> Temp.°C 20.5 20.5 20.5 20.4 20.6 20.5 <br /> Mortalities 0 0 0 0 0 0 <br /> 96 Hrs. pH 7.19 7.00 6.86 6.46 6.37 5.99 <br /> 6/17/00 D.O. 7.32 7.52 7.30 6.05 6.10 6.86 <br /> Temp.°C 20.8 20.7 20.9 20.8 20.8 20.8 <br /> Mortalities 0 0 0 0 0 0 <br /> Total Mortalities 0 0 0 0 0 0 <br /> Notes <br /> RamiroS=gad;;'�� Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />