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0 COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of natural Resources <br />Graham Roberts <br />Trapper Mining Inc. <br />P.O. Box 187 <br />Craig, CO 81626 <br />1 August 2021 <br />Re: Trapper Mine (Permit No. C1981-010) <br />Review of March 2021 Discharge Monitoring Report <br />Dear Mr. Roberts: <br />The Division has received and reviewed March 2021 Discharge Monitoring Reports (DMRs), for <br />the Trapper Mine. Thank you for your timely submittal of this information. The report covers the <br />period for the month of March 2021 and includes quarterly monitoring results and wet testing. The <br />DMR was received by the Division on 22 April 2021 as an electronic submittal. <br />Trapper submits the DMRs to the Division, in accordance with Rule 4.05.13(2)(a)(iii). <br />Trapper reported that three outfalls discharged during the month; Johnson Pond 910, No Name <br />Pond 95, East Pyeatt 92, and Middle Flume (outfalls 00IA, 002A, 011A and 020A respectively). <br />Trapper reported that no primary effluent limitations were exceeded during the quarter. TDS <br />values for the active outfalls are no longer explicitly reported. Acute WET testing was also <br />required and the discharges at outfalls 009A, 023A and 025A exhibited no discharge therefore wet <br />WET testing was not required. <br />The Division does not have any questions or further comments at this time. If you have any <br />questions or need additional information, please contact me. <br />Sincerely, <br />Robin Reilley, M.S. GISP <br />Environmental Protection Specialist 11 <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director <br />