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.~ <br />NARRATIVE <br />Accelerated Chronia WET Teat <br />CLIENT: P & M Edna Mine, 26990 Colo Highway 131, Oak Creek, <br />CO 80467 <br />DATE: December 15, 1995 <br />PERMIT AND BAMPLE <br />NPDES #: CO-0032638 <br />Type of Sample: Effluent Composites 006 <br />Dilution Water: Recon Laboratory Water <br />Date of Samples: November 13, 15 and 17, 1995 <br />November 27 and 29, and December 1, 1995 <br />Date of Test: November '14 and 28, 1995 <br />TEST ORGANI8M6 AND PROCEDURE <br />Organism: Ceriodaohnia dubia <br />Aqe: <24hrs <br />Procedure: Single Species Chronic bioassay as specified <br />by the Water Quality Control Division of the Colorado <br />Department of Health, 1993. <br />REBULTB <br />Both effluent samples from Edna Mine, outfall 006 did not <br />show chronic toxicity to C. dubia survival. <br />DIBCUBBION <br />Results of the effluent samples from outfall 006 <br />demonstrate a pattern of no toxicity to C. dubia <br />survival. Therefore, Edna Mine is currently in <br />compliance with the WET portion of the facility's permit <br />to discharge for outfall 006. <br />F~188 <br />Orlpinel Watermarked For Vour Prolectlon <br />COMMERCIAL TESTING !~ EN OIN EERINO CO. <br />~~ <br />