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-: <br />_. ;. <br />~~ Cripple Creek & Victor Gold Mining Company ~~I <br />A Joint Venture -Pikes Peak Mining Company, Manager <br />~~ Operations Ofllce Englewood Office <br />P.O. Box 191, 2755 State Highway 67 5251 DTC Parkway, Suite 700, Englewood <br />Vic[or, Colorado 80860 Colorado 80111 <br />(719) 689-2977 • FAX (719) 689-3254 (303) 889-0700 • FAX (303) 889-0707 <br />June 15, 1995 <br />Mr. Berhan Keffelew RECEIVEC' <br />Environmental Protection Specialist JUN 16 1995 <br />Colorado Department of Natural Resources <br />Division of Minerals and Geology <br />~I~~~~~~~~~~~ ~~~ <br />Office of Mined Land Reclamation t~wlslen w wstnotaw & ~ioolc9Y <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Reference: Response to Your Telephone Call of June 15. 1995 Regarding Weekly COA <br />Resort -Testing Frequency. <br />Dear Mr. Keffelew: <br />As explained, the Tables you reviewed in the weekly report listed the amount of material placed <br />and not the lesser amount of material that has been "prepared" and covered by liner. Therefore <br />the frequency may appear to be lower than required but, upon completion of the particular effort <br />being tested, will be in compliance with the required frequency because additional tests will be <br />preformed. Golder Associates has prepared a memorandum explaining this practice. A copy <br />is attached). <br />Golder also prepared, for your benefit, an expanded tabulation for the soil liner fill which <br />reports not only the soil liner fill placed but also the soil liner fill "prepazed" for covering with <br />geosynthetic. The last category is the meaningful one. This tabulation is in the Attachment. <br />You will note that because of the small areas and volumes involved in this yeaz's construction <br />(in comparison to last year), the frequencies may show sharp increases and decreases. But these <br />are not related to actual changes in frequency. Instead they reflect the fact that when little total <br />azea or volume is involved, an azea or volume is accumulative such that the frequency appears <br />to diminish until the next test is performed whereupon the frequency appears to increase. <br />As you have already noted, all of Golder's CQA testing conducted last yeaz was in accordance <br />with the approved frequency. The testing frequency used this year remains the same. <br />