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Ogden Environmental and Energy Services Company <br /> Bioassay Laboratory <br /> 5550 Morehouse Drive, Suite B <br /> San Diego, CA 92121 <br /> (619) 458-9044 ext 208 <br /> Client Name ATI Address 5550 Morehouse Drive, San Diego, CA 92121 <br /> Sample ID 502257-02, 2/95-066 Results LC50 >750 mg/L <br /> Sample and Bioassay Information <br /> Test Type Screening Test Conditions Static <br /> Test Species Pimephales promelas Common Name Fathead minnow <br /> Organism Supplier Thomas Fish Company Number per Tank to <br /> Acclimation Period >7 days Acclimation Temp (°C) 20± 2 <br /> Mean Length (mm) 41 0 Mean Weight (g) 0 350 <br /> Range (mm) 38-44 <br /> Dilution Water Charcoal-Filtered Tapwater Test Solution Volume (liters) 5 <br /> Sample Receipt Date 2123/95 Test Dates 2/23-2/27/95 <br />. Results Summary <br /> Initial Final Percent Average <br /> Treatment Rep Count Count Survival Survival <br /> Control A 10 9 90 <br /> B 10 9 90 90 _ <br /> 250 mg/L A 10 10 100 <br /> B 10 8 80 90 <br /> 500 mg/L A 10 9 90 <br /> B 10 9 90 90 <br /> 750 mg/L A 10 9 90 <br /> B 10 10 100 95 <br /> Analysis i'KC,GG M41 Date <br /> Review Date f <br />