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Enviro - Chem, Inc. <br />1214 E. Lexington Avenue, Pomona, CA 91766 Tel (909) 590-5905 Fax (909) 590-5907 <br />LABORATORY REPORT <br />CUSTOMER: Environmental & Chemical Consulting, Inc. <br />P.O. Box 3263, Crestline, CA 92325 <br />Tel(909)714-2095 E-Mail: David.Diaz@ECCInc.US <br />PROJECT: Owens-Tracy / Quench Water <br />SAMPLING DATE:09/28/20 <br />MATRIX:LIOUID <br />REPORT TO:MR. DAVID DIAZ <br />DATE RECEIVED:09/28/20 <br />DATE ANALYZED:10/15-19/20 <br />DATE REPORTED: 10/20/20 <br /> <br />SAMPLE I.D.: Owens-Water LAB I.D.: 200928-12 <br /> <br />AQUATIC TOXICITY TESTING <br /> <br />METHOD: STATE OF CALIFORNIA DEPARTMENT OF FISH AND GAME APPROVED <br />PROCEDURES USING PIMEPHALES PROMELAS (FATHEAD MINNOWS) <br />RESULTS: 0% MORTALITY RATE AT 750 mg/L CONCENTRATION <br />(100% SURVIVAL) <br />0% MORTALITY RATE AT 400 mg/L CONCENTRATION <br />(100% SURVIVAL) <br />THEREFORE, LC-50 > 750 mg/L <br />COMMENTS <br />mg/L = MILLIGRAM PER LITER = PPM <br />> = GREATER THAN <br />ANALYSIS WAS PERFORMED BY AQUATIC RESTING LABORATORIES, VENTURA, CA <br />DATA REVIEWED AND APPROVED BY: <br />ENVIRO-CHEM'S CAL-DHS ELAP CERTIFICATE No.: 1555