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<br />Pittsburg and Midway Coal Company Edna Mine Water Quality Assessment CO-0032638 <br />APPENDIX A <br />WATER QUALITY ASSESSMENT <br />TROUT CREEK AND TRIBUTARIES <br />THE PITTSBURG AND MIDWAY COAL MINING COMPANY <br />EDNA MINE <br />Table A-I <br />Assessment Summar <br />Name of Facilit The Pittsbur and Midwa Coal Minin Com an Edna Mine <br />CDPS Number CO-0032638 <br />WBID -Stream Upper Colorado River Basin, Yampa River Sub-basin, Stream Segment <br />Segment 13c: Mainstem of Trout Creek from headgate of Spruce Hill Ditch <br /> (approximately 2,500 feet north of where County Road 27 crosses Trout <br /> Creek) to its confluence with Fish Creek. All tributaries to Trout Creek <br /> from the headgate of Spruce Hill Ditch (approximately 2,500 feet north of <br /> where County Road 27 crosses Trout Creek) to County Road 179 except <br /> for specific listings in 13b. <br /> COUCYA13c <br />Classifications Cold Water Aquatic Life Class 1 <br /> Class 1 a Existing Primary Contact Recreation <br /> Agriculture <br /> Water Su ] (June throu h February on1 ) <br />Desi ation Undesi ated <br />I. Introduction <br />The water quality assessment (WQA) of Trout Creek and its tributaries near the Pittsburg and <br />Midway (P&M) Coal Mining Company Edna Mine discharges (Edna Mine), was developed for the <br />Colorado Department of Public Health and Environment (CDPHE) Water Quality Control Division <br />(Division). The WQA was prepared to facilitate issuance ofthe Colorado Discharge Permit System <br />(CDPS) permit for the Edna Mine, CDPS Permit No. CO-0032638, and is intended to determine the <br />assimilative capacities available to the Edna Mine for pollutants found to be of concern. <br />Figure A-1 on the following page contains a map of the study azea evaluated as part of this WQA. <br />The facility is a former surface coal mine that is in the final stages of reclamation. All of the surface <br />areas have been recontoured and vegetation is growing. Although the Moffat Pond remains, from <br />which Outfa11004 originates, many ofthe former ponds no longer remain. Furthermore, other ponds <br />ponds that were originally designed to intercept and treat wastewaters, have been converted to for use <br />as livestock and wildlife watering. It is expected that final bond release may occur in the next year or <br />two. <br />Appendix A twQn By vers+on a-a Easy Page 1 of 19 Last Revised September 2, 2005 <br />