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COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIItONMENT <br />WATER QUALITY CONTROL DIVISION <br />Water Quality Protection Section <br />Memorandum <br />To: File <br />From: -Jon Kubic~ <br />Date: September 28, 1999 <br />Subject: Inactivation Request <br />H-G Coal Company Hayden Gulch Mine <br />CDPS No. COG-850018 <br />Routt County <br />The permittee has requested inactivation. <br />The Colorado Division of Minerals and Geology (CDMG) has recently granted release of Phase II and <br />Phase III bond. As a condition of this approval, the CDMG has authorized leaving the two sedimentation <br />ponds that arc the sources of the remaining discharge poinu under this permit for use as livestock and <br />wildlife watering ponds. As such, the potential for point source discharges from these ponds will remain, <br />however, the sources will no longer be a regulated industrial activity but anon-regulated agricultural <br />activity. <br />Additionally, during my June 1998 site visit, I observed that then arc at least three spoils springs that <br />remain. None of these contribute significant flow and they usually do not reach either of the ponds. <br />Because they do not impact surface water, the CDMG has jurisdiction. They have determined that these <br />spoils springs are not of sigtificant concern. There is no basis for the Division [o disagree. <br />On the basis of the information detailed in this letter, I recommend inactivation. I also recommend that <br />the District Engineer not be requested to perform a site visit. There would be no benefit from such a <br />visit. <br />