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P'A if,r CtORia <br />Katie Wurm <br />GeoAnaiytical Laboratories, Inc. <br />2300 Maryann Drive <br />Turlock, CA 95380 <br />Dear Ms. Wurm, <br />November 5, 2010 <br />I have enclosed two copies of the report entitled "A Title 22 `Hazardous Waste' Toxicity <br />Evaluation of a Waste Sample" for the sample designated "Sample IA" that we received on <br />October 22, 2010. <br />The results of this toxicity test indicate that the waste sample "Sample 1A" 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 500 mg/L Title 22 "Hazardous Waste" threshold, and therefore, the sample <br />should not be considered a hazardous waste with respect to fish toxicity. <br />If you have any questions regarding this test or the report, feel free to contact my colleague <br />Kristin Worrell or myself at (707) 207-7760. <br />Sincerely, <br />R. <br />[ �Oyy [Ng 1.0y11gndby Scott Oqe^1) <br />✓\ l ` Oft'—ft Si tt V9k, PhD o. —CEO <br />' d Sped' P"'u c' <br />a w. <br />Ogle, Ph.D. <br />h e `l�J� rrcwiMxanogkep6clNlKa+skcam, <br />c�VS <br />• Date: ]1110 11 11 1611',11 -0fV9' <br />R. Scott Ogle, Ph.D. <br />Principal & Special Projects director <br />This test was performed under Lab Order 17680, The test results reported herein conform to the most current <br />NELAC standards, where applicable, unless otherwise narrated in the body of the report, and only relate to the <br />sample(s) tested. This report shall not be reproduced, except in full, without the written consent of Pacific EcoRisk. <br />1112 <br />