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`°' w s a a } _ •sir �,.., - '�h "`* E <br />" <br /> i <br /> LETTER OF TRANSh1iTTAL <br /> r` <br /> Date: May 22, 1991 <br /> To: Ms-Lori Anderson <br /> e <br /> Weston Analytics, Inc. <br /> 212 Frank West Circle <br /> Stocktca,CA 95206 <br /> From: William E.Foster,M.S. <br /> Laboratory Manager <br /> Y <br /> Jr <br /> Terrance E.Carter <br /> Laboratory Director <br /> Subject: Aquatic Toxicity Testing Results for Hazardous Waste Testing. <br /> Aqua Tota Technutogln <br /> Aquaeic Bloassay SAMPLE MATRIX AND I.D.: Three Soil Samples #1008 <br /> tabontory 4 to#10086(#1.2-5,8653043k; <br /> #3,863044;and#4,863015; PO/Project #LP11G16. <br /> 2950 Buskirk Arenue <br /> TREATMENT DILUTIONS (mg/L): 250,500,750,and Control run in soft water(40-48 mg/L SuEte 120 <br /> hardness)and in duplicate with 10 fish/3 L tank and 20 fish/treatment. <br /> :Crock.CA TESTING PERIOD: May 10-14, 1991. <br /> 9iw6 <br /> 415 9S4-48a4 BIOASSAY TEST: Fathead minnow Pim h 1e romeia }96 hour static Hazardo <br /> Tus Waste <br /> FAX 934-0418 oxicity. <br /> METHODS: 'Standard Methods for the Examination of Water and Wastewater', I6th irdition, <br /> American Public Health Association, 1986;"Static Acute Bioassay+Procedures for Hazardous <br /> Waste Samples'(Polisini and Miller, 1988),California Department of Fish and Game;and <br /> certified by the State of California Department of Health Services. <br /> SUMMARY. <br /> Fathead minnow 96-hour percent survival was 100%in Control <br /> The 96-hoar 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-hour LC50 > 750 G[g/L for Sample#10kb(#4,863G45). <br /> The Summary data sheets for these tests are enclosed. <br /> fa � <br /> 8 t eoar/wAstona&nEP <br />