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a a <br /> Y . <br /> i <br /> ]I{ r <br /> t <br /> LETTER OF TRANSMITTAL <br /> Datr. May 22, 1991 <br /> To: Ms.Lori Anderson <br /> Weston Analytics,Inc. <br /> 212 Frank West Circle <br /> Stockton,CA 95206 <br /> From: William E.Foster,M.S. <br /> Laboratory Manager <br /> Terrance E.Carter <br /> = Laboratory Director <br /> Subject: Aquatic Toxicity Testirg Results for Hazardous Waste Testing. <br /> Aqua Term Technologies <br /> Aquatic Bioassay SAMPLE MATRIX AND I.D.: Three Soil Samp1e3#10684 to#10086(#1-2-5,8653043k; <br /> x; tabomiury #3,86 ;and#4,863045;PO/Project#LP11016. <br /> TREATMENT DILUTIONS(mg/L): 250,5W,750,and Control run in soft water(40-48 mg/L <br /> 2950 Sosklrk Avenue hardness)and in duplicate with 10 fish/3 L tank and 20 fish/treatment. <br /> Suite 120 <br /> �t Creek CA TESTING PERIOD: May 10-14, 1991. <br /> y,t <br /> 415 934-4884 BIOASSAY TESL: Fathead minnow(Pimeol,afes Dremelas)96-hour static Hazardous Waste <br /> FAX 934-0418 Toxicity. <br /> METHODS. 'Standard Methods for the Examination of Water and Wastewater',16th Edition, <br /> American Public Health Association,1986;'Static Acute Bioassay Procedures for Hazardous <br /> Waste Samples(Polisird and Miller,1988),California Department of Fh.;, and Game;and <br /> certified by the State of California Department of Health Services. <br /> SUMMARY: <br /> Fathead minnow 96-hour pt:rcent survival was 100%in Control. <br /> The 96-hour LC50 > 750 mg/L for Sample#10084(#1-2-5,8653043k). <br /> The 96-hour LC50 > 750 mg/L for Sample#10085(#3,863044). <br /> The 96-how LC50 >750 mg/L for Sample#10086(#4,863045). <br /> The Summary data sheets for these tests are enclosed. <br />