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~~ • ~ • • IIIIIIIIIIIIIIIIIII <br />999 <br />~~ Cripple Creek & Victor Gold Mining Company <br />A Joint Venture -Pikes Peak Mining Company, Manager <br />(1 t 7 Operations Offlce Englewood OHice <br />!\~77C.V P.O. Box 191, 2755 State Highway 67 5251 DTC Parkway, Suite 700, Englewood <br />Victor, Colorado 80660 Colorado 80111 <br />(719) 689-2977 • FAX (719) 689-3254 (3113) 889-0700 • FAX (303) 889-0707 <br />July 7, 1994 <br />SENT BY FACSIMILE <br />Mr. Berhan Keffelew <br />Environmental Protection Specialist <br />Colorado Department of Natural Resources <br />Division of Mines and Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />COPY FOLLOWS BY MAIL <br />,10111 1994 <br />C:1• ~; <br />t, <br />Reference: Cresson Project: Permit Number M-80-244: Ironclad Tailing Material - <br />Completion of Assessment of Water Quality, <br />Dear Mr. Keffelew: <br />We appreciated the opportunity to have representatives of Golder Associates ("Golder") meet <br />with you, Bruce Humphries, Dr. Posey and Dr. Pendleton on Thursday, June 30, 1994 to <br />discuss the geochemical evaluation of the Ironclad Mill "Tailing" Material that is scheduled <br />to be reused as the soil liner beneath the Cresson Valley Leach Facility. This letter serves to <br />confirm the conclusions and agreements reached at that meeting and to confirm that Cripple <br />Creek & Victor Gold Mining Company ("CC&V") has the Office's approval to utilize these <br />materials, in accordance with Office-approved specifications, as the soil liner for the Cresson <br />Valley Leach Facility. <br />During the meeting, Dr. Van Zyl and Mr. Kidd of Golder described and discussed the <br />multiple design features of the Cresson Project which will virtually eliminate the potential for <br />any seepage from the present drainages to contact the soil liner constructed of the Ironclad <br />material. It was also noted that there does exist a low probability that some springs may <br />develop in areas located outside of the presently-defined drainages beneath the valley leach <br />facility and, therefore, a small probability exists for water from those springs or seeps to <br />contact the Ironclad material in areas where the lower-most liner does not exist and where <br />there is not a large underdrain system. <br />The discussion further concentrated on the expected quality of seepage contacting the <br />Ironclad material. I believe it was agreed that the meteoric water mobility test results that <br />have been presented were very likely conservative (that is, they predict higher than observed <br />