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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: Worldwide Waste Services <br /> 3770 Grand Avenue <br /> Pomona, CA 91766 <br /> Tel(909)597-2999 Fax(909)597-2995 <br /> PROJECT: PNP - Stockton <br /> DATE SAMPLED:08/17/11 DATE RECEIVED:08/19/11 <br /> MATRIX:SOIL DATE ANALYZED:08/20-24/11 <br /> REPORT TO:MS, LISA ULLOA DATE REPORTED:08/26/11 <br /> ---------------------------------------------- - ---- -------- <br /> SAMPLE ID: Soil, Rock LAB ID: 110819-23 <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: 5% MORTALITY RATE AT 750 mg/L CONCENTRATION <br /> (955 SURVIVAL) <br /> 0% MORTALITY RATE AT 500 mg/L CONCENTRATION <br /> (100% SURVIVAL) <br /> 0% MORTALITY RATE AT 250 mg/L CONCENTRATION <br /> (100% SURVIVAL) <br /> THEREFORE, LC-50 > 750 mq/L <br /> ---------------------------------------------------------------------- <br /> COMMENTS <br /> mg/L = MILLIGRAM PER LITER = PPM <br /> > - GREATER THAN <br /> ANALYSIS WAS PERFORMED BY ASSOCIAGF,p/Q,AH <br /> %G/J// ORATORIES, ORANGE, CA <br /> DATA REVIEWED AND APPROVED BY: <br /> ENVIRO-CHEM'S CAL-DHS ELAP CERTIFICATE No. : 1555 <br />