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~~ - • • iii iiiiiiiiniiiiii sss CC Cripple Creek & Victor Gold Mining Company A Joint Venture -Pikes Peek Mining Company, Manager (~ t 7 Operations Office Englewood Office !\~xT V PO. Box 191, 2755 Slate Highway 67 5251 DTC Parkway. Suite 700, Englewood Victor, Colorado 80860 Colorado 80111 (719) 689-2977 • FAX (719) 689-3254 (303) 889-0700 • FAX (303) 889-0707 October 17, 1994 SENT BY FACSIMILE -HARD COPY FOLLOWS BY MAIL Mr. Berhan Keffelew Environmental Protection Specialist Colorado Department of Natural Resources Division of Mines and Geology Office of Mined Land Reclamation 1313 Sherman Street, Room 215 Denver, Colorado 80203 RECEIVED OCT 19 1994 tivision of Minerals & Geology Reference: Cresson Project: Permit Number M-80-244: Response To Inspection Report Dated October 3. 1994. Dear Mr. Keffelew: Two "problems" are noted in Mr. Carl Mount's inspection report for October 3, 1994. We wish to respond to those "problems." The inspection report was received by the Cripple Creek & Victor Gold Mining Company ("CC&v") on October 14, 1994. Both of the "problems" have been corrected some time ago and the corrective measures reviewed during subsequent inspections by your staff. The first problem, that of containing the fluid in the upstream sump, was corrected by installing additional geotextile in the riser pipe. A small amount of water still enters the pipe, but very little sediment is entering the underdrain. These mitigation measures were discussed with a number of Office of Mined Land inspectors. Further, on October 14, 1994, we submitted the plan to remove the sump as soon as it is surrounded by liner and the weather permits. This plan consists of procedures to meet the applicable specifications. All unsuitable silt and clay will be removed, the drain standpipe removed, the liner and geotextile repaired, and the underdrain completely isolated from the overlying system. As stated numerous times, CC&V will not allow the sump area to be completed until all elements meet the applicable designs and specifications. With respect to the second "problem," CC&V undertook to replenish the straw bales immediately upon discovery of bypassing. The replenished sediment control system was observed by a number of inspectors since it was observed and the mitigation measures found, we believe, to be appropriate. As you know, while the area in question is within the disturbed area boundary, it is not yet cleared for disturbance by the Bureau of Land Management. Therefore we are limited in the amount of disturbance that is permitted. Further, the sediment that has been observed is, in large part, the same sediment that occurs routinely from Arequa Gulch. As is evident, the piping system that carries Arequa Gulch to the area is complete such [hat construction now contributes negligible sediment to the system and, therefore, the majority