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CC&L' Gold Mng. ID: MRR 26'96 21:22 No .034 P.O1 • III IIIIIIIIIIIII III C ~ Cripple Creek And Victor Gold Mlning Company 999 A Joint Venture - Plky Pok Mining Company, Manapor ~~ Operetlon^ Olllce Englewood Olllee - P.O. Box 191, 27b5 Stale Highway 67 P.O. Box 5076, 5251 DTC Parkway, Suite 700 Victor, CO 80880 Englcwootl. CO 80155 (719) 689.2977 • FAX (779) 869-3254 (303) 669-A700 • FAX (303) 869-0707 March 27, 1996 SENT BY FACSIMILE & OVERNIGHT RECORDED DELIVERY Mr. Berhan Keffelew Environmental Protec[ion Specialist Colorado Department of Natural Resources Division of Mines and Geology Office of Mined Land Reclamation 1313 Sherman Street, Rootn 215 Denver, Colorado 80203 Reference: Cresson Project: Permit M-80-244: Correction of Reference to Testin8 Method. ~TOtlate on Assessment of Underground Workings. and Construction Schedule. Dear Mr. Keffelew: The Cripple Creek & Victor Gold Mining Company is providing, as Attachment I, corrected pages for the geomembrane specifications that should be inserted in your copy of the Technical Specifications. Accompanying these corrected pages is an explanation from the Design Engineer for the correction. The telling procedure involved is that for Lineat Low Density Polyethylene ("LLDPE") puncture resistance. With focus on submitting the test results to your Office, a typographical or editing error was not identified until the synthetic geomembrane contract was finalized. The correct resting procedure is that described in ASTM D4833. Tltc second attacltmcnt is status report on the investigations of, and compensation measures for, the supposed underground workings that were historically mapped as located in areas of the Phase Il pad. 'this is provided to ensure that you are updated on the progress and plans. As you will see described and analyzed in the Design Ettginccr's report, we currently intend to install geogrid material to ensure that the workings are properly addressed. Additional pages for the Technical Specifications that call out the geogrid materials and procedures are included. 1fie map that accanpanies Attachment 2 is provided with the hard copy of this letter. The third of the referenced items is that of the 1996 construction schedule. This schedule is somewhat dependent on obtaining Office of Mined Land Reclamation approval of the technical revisions and other notifications CC&V provided initially via its letter dated January 9, 1996. It is our understanding that we should receive an "adequacy letter" from you that addresses CC&V's response of Marclt 4, 1996, possibly tomorrow, It is also our understanding that all remaining issues raised by the Office of Mined Land Reclamation involve the Drain Cover Fill. CC&V also acknowledges that a cation exchange test for the "Arta 2" Soil Liner Pill must be submitted to your office and that the thickness of the Low Volume Solution Collection System Fill is not changing. based on these understandings, it is our belief that the other (than Drain Cover Fill) elements of the Technical Revision submitted to you on January 9, 1996 are