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~ ~ III IIIIIIIIIIIIIIII <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman 51., Room 215 <br />Denver, CO 80207 <br />Phone: 17031 Bh6-3567 <br />FA%: (30]1 832-8106 <br />December 10, 1993 <br />Mr. Marcus Middleton <br />Colorado Yampa Coal Company <br />29587 Routt County Road No. 27 <br />Oak Creek, Colorado 80467 <br />Re: 1992 Mine 1, Mine 2 and Eckman Park AHR Review Responses <br />Permit No. C-81-071 <br />Dear Mr. Middleton: <br />pc cow <br />Nea <br />~rg . <br />~ /ei6 ~ <br />Ray ROmer <br />Governor <br />Michael B. Long <br />Division Director <br />The Division has completed review of CYCC's responses to our adequacy questions for the 1992 Annual <br />Hydrology Report for Mine 1, Mine 2, and Eckman Park. AI responses were determined to be adequate <br />with the following exceptions where comments or questions still exist. <br />The Division has questions concerning stream level and rating curve use and procedure. We would <br />like to discuss and review this information at some future time, possibly in conjunction with a site <br />inspection. <br />The Division stands by the written inspection record for April 29-30, 1992, which indicates Pond F, <br />M, and H were discharging at some unknown rate. Increased scrutiny of discharge records in the <br />future should help determine whether this is an isolated instance or a chronic problem which needs <br />to be addressed further. <br />The Division agrees that there are separate and distinct issues with regard to AHR issues for the <br />Foidel Creek and the Eckman Park permits. However, due to the number of overlapping sites in the <br />area las CYCC duly points out1, it is not possible to determine changes attributable to the Foidel <br />Creek Mine without considering the overlapping and adjacent Eckman Park Mine. As always, the <br />Division is interested in the operators' comments on how we might conduct our technical reviews in <br />amore efficient and thorough fashion. Along those lines, we will continue to conduct report <br />reviews in a manner which allows for the determination of monitoring compliance as well as impacts <br />due io mining. Your continued assistance in this effort is appreciated. <br />We look forward to receiving your 1993 Annual Hydrology Reporr, which is due at the Division office by <br />March 31, 1994. Thank you for your continued efforts to adhere to your monitoring program. <br />Sincere) , <br />~c r ~~_~_ <br />Kent A. Gorham <br />Environmental Protection Specialist <br />KAG/bjw <br />m:loss\bjw\kag.ahr <br />