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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />COLORADO <br />D I V I S I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Colorado Division of Wildlife Bill Ritter, Jr. <br />Mr. J.T. Romatzke, Area Wildlife Manager Governor <br />Northwest Region Office Harris D. Sherman <br /> <br />711 Independent Avenue Executive Director <br /> <br />Grand Junction <br />CO 81505 Ronald W. Cattany <br />, Division Director <br /> Natural Resource Trustee <br />RE: McClane Canyon Mine <br />Permit No. C-1980-004, Technical Revision No. 16 <br />Dear Mr. Ramatzke: <br />Thank you for your comments regarding the McClane Canyon Mine, Technical Revision No. 16. We <br />have completed a thorough review of the proposed waste pile and sediment pond construction project <br />proposed with Technical Revision (TR-16). The purpose of this letter is to let you know the status of <br />our review process and to summarize our findings. Based on comments received from you and your <br />staff at the DOW the monitoring station SW-1 has been relocated upstream (north) of the gully that <br />enters East Salt Creek a short distance upstream from the bridge (please note that the mine water <br />discharge point is located approximately 400 feet south of the bridge on East Salt Creek.) The mine <br />water discharge point is permitted by CDPHE through the Colorado Discharge Permit System (CDPS) <br />and is routinely monitored. Further, the planned coal mine waste disposal site will not add additional <br />mine water discharge stream to East Salt Creek; mine water discharge flows and quality will be <br />unaffected by the proposed waste disposal/sediment pond construction. The proposed sediment pond <br />will require a separate discharge point that will also be administered by the CDPHE through <br />modification of the existing CDPS permit. The sediment pond discharge is manually operated and is <br />designed to rarely discharge. We have also evaluated the potential hydrologic impacts of leachate <br />seepage from the waste pile and sediment pond bottom; and we have determined there will be <br />negligible impact to both alluvial groundwater and East Salt Creek. From our evaluation, potential <br />impacts to East Salt Creek from the proposed project would be insignificant. CAM Mining, LLC has <br />met all of our rules and requirements, and we are preparing to approve TR-16 in the near future. <br />We appreciate your input and if you or your staff would like to meet with us and/or the CDPHE Water <br />Quality Control Division we are happy to do that. If you have any questions or would like to arrange a <br />meeting in our Grand Junction Field Office or at the mine site location, please call me at 303-866-3567 <br />x 8110 or Mike Boulay at 970-243-1571. <br />Sincerely, <br />Sandra L. Brown <br />Sr. Environmental Protection Specialist <br />C. Mike Boulay <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction Durango Active and Inactive Mines