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AN <br />September 28, 2012 <br />Mr. Thomas Fry <br />Western Fuels <br />P.O. Box 628 <br />Nucla, CO 81424 <br />Dear Mr. Frv: <br />1 <br />r <br />ENVIRONMENTAL SERVICES COMPANY <br />Enclosed is the report For the third accelerated chronic biomonitoring test performed for Western <br />Fuels on effluent from the New Horizon ;dine NPDES 013 discharge. There were no <br />statistically significant toxicity effects to the C'crioduphnia dubia test species in any effluent <br />concentration at or below the pennitted IWC (Instream Waste Concentration). Since the WE I' <br />(whole Effluent Toxicity) test does not meet the defined criteria for violation or failure, the <br />effluent discharge passes WET testing requirements for this sampling period. <br />If you have any questions or concerns, please do not hesitate to contact me at (303) 661 -9324. <br />MY <br />QAOC' Supervisor <br />Enclosure(s): Invoice <br />Report <br />1 341 Carron Street # tcutsvilte, CO 80027 - 303.661.9324 • 303.661,9325 fax * vvvrw.seacre<_tgroup.corn <br />