REV13408 - Laserfiche WebLink

Home Browse Search

R. • • III IIIIIIIIIIIIIIII cc Cripple Creek & Victor Gold Mining Company November 24, 1998 TEXT SENT BY FACSIMILE SENT CERTIFIED RETURN RECEIPT REQUESTED Z 217 009 935 Mr. Berhan Keffelew Environmental Protection Specialist Colorado Department of Natural Resources ="=CFIVE~ Division of Minerals and Geology Office of Mined Land Reclamation ; , j 1313 Sherman Street, Room 215 Denver, Colorado 80203 „ ,,:. ~,ais s Geology Reference: Cresson Project; Permit M-80-244: Amendment No. 7; Summary of Final Adequacy Review Items. Dear Mr. Keffelew: The Cripple Creek & Victor Gold Mining Company ("CC&V") appreciates the concerted effort by all involved to complete the adequacy-related comments. CC&V understands that all remaining technical adequacy items have, as of our discussions on November 20, 1998, been presented to CC&V and, based on the Office of Mined Land Reclamation's ("OMLR") review of this concluding response by CC&V, will have been adequately clarified or stated by CC&V so as to be acceptable elements of the application for Amendment No. 7. As agreed, CC&V is submitting this letter to memorialize the agreed-upon responses and to assist the OMLR in completing i[s findings in preparation for its decision scheduled for November 30, 1998. The following statements are provided in the approximate order they were discussed on November 20, 1998. Ten-foot distance from toe of ore to liner ed1=e: CC&V submitted responses of October 25 and November 12, 1998 to the OMLR's requests regarding stability of the ore outslopes on the valley leach facility which were, first, to assess the potential for ore to move outside the lined area of the valley leach facility (which potential was found to be very low), and subsequently to specify the distance maintained between the toe of the outslope of the placed ore and edge of the liner. To further elucidate on its prior responses, CC&V has agreed to limit this distance to a minimum of 10 feet, except where ingress and egress is required or where the distance is, on the date of this letter, less than 10 feet, until such time as CC&V has demonstrated, through an inventory of the amount of ravelling observed, if any, at the toe of existing angle of repose slopes of design height, that the distance from the toe to the liner edge is not critical to retaining ravelling ore because, for example, there was minimal ravelling observed after placement. The A Joint Venture -Pikes Peal: Mining Company, Manager Operations Office Englewood O1Tice P.O Box 191, 100 N. 3rd 5251 DTC Parkway, Suite 700 Victor, Colorado 80860 Englewood, Colorado 801 t 1 (719) 689-2977 FAX (719) 689-3254 (303) 889-0700 FAX (303) 889-0707