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Donna Keller February 20,2014 <br /> GeoAnalytical Laboratories,Inc. <br /> 2300 Maryann Dr. <br /> Turlock,CA 95380 <br /> Donna, <br /> I have enclosed our report"A Title 22 `Hazardous Waste' Toxicity Evaluation of a Waste <br /> Sample" for the sample designated"purge tank" that was collected on January 28,2014,and <br /> delivered to our testing laboratory on the same day. <br /> The results of this toxicity test indicate that the waste sample "purge tank" was not acutely toxic <br /> to fathead minnows at the test treatment levels.The LC50 of this sample was >750 mg/L, which <br /> is greater than the Title 22 "Hazardous Waste" classification threshold of 500 mg/L,and <br /> therefore,the sample should not be considered a hazardous waste with respect to fish toxicity. <br /> If you have any questions regarding this testing or the report,feel free to call my colleague Dr. <br /> Scott Ogle or myself at (707)207-7760. <br /> This testing was performed under GeoAnalytical Lab Report# A4A2816. <br /> Sinccreiv. <br /> �� ,W jm Digitally signed by <br /> iMichelle Fong <br /> Date:2014.02.21 <br /> 12:20:16-08'00' <br /> Michelle Fong <br /> Aquatic Ecotoxicologist <br /> Pacific EcoRisk is accredited in accordance with NELAP(ORELAP ID 4043).Pacific EcoRisk <br /> certifies that the test results reported herein conform to the most current NELAP requirements for <br /> parameters for which accreditation is required and available. Any exceptions to NELAP <br /> requirements are noted,where applicable,in the body of the report.This report shall not be <br /> reproduced,except in full,without the written consent of Pacific EcoRisk.This testing was <br /> performed under Lab Order 21985. <br /> 1/19 <br />