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HYDRO20500
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Entry Properties
Last modified
8/24/2016 8:41:48 PM
Creation date
11/20/2007 1:34:56 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
Hydrology
Doc Date
11/6/1996
Doc Name
CRESSON PROJECT PN M-80-244 RECEIPT OF THE MLRS LETTER OF 10/07/1996 REGARDING GROUND-WATER
From
CRIPPLE CREEK & VICTOR GOLD MINING CO
To
DMG
Media Type
D
Archive
No
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<br />• III IIIIIIIIIIIII III • RECEIVED <br />Cripple Creek & Victor Gold Mining Company <br />C A Joint Venture - Pikes Peak Mining Company, Manager NO11 O b <br />~T~ Operations OfFce Englewood OfFce Y <br />6AL P.O. Box 191, 2755 State Highway 67 P.O. Box 5078, 5251 DTC Parkwav S i 70 <br />Ydor, CO 80860 Englewood, CO B~M~,iar' ~1Y0°oiplo c~ ~t7ot~y <br />(719) 689-2977 • FAX (719) 689-3254 (303) 889-0700 • FAX (303) 889-0707 <br />November 1. 1996 <br />SENT BY FACSIMILE AND CERTIFIED RETURN RECEIPT REQUESTED <br />P 289 926 295 <br />Mr. Berhan Keffelew <br />Environmental Protection Specialist <br />Colorado Department of Natural Resources <br />Division of Minerals and Geology <br />Office of Mined land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver. Colorado 80203 <br />Reference: Cresson Project; Permit M-80-244: Receipt of the Office of Mined Land <br />Reclamation's Letter of October 7, 1996 Regarding Ground-Water. <br />Dear Mr. Keffelew: <br />The Cripple Creek & Victor Gold Mining Company ("CC&V") has received the letter from you <br />listing numeric ground-water quality criteria. You stated to CC&V prior to our receipt of this <br />letter that you believed numeric water quality criteria were necessary. CC&V responded that <br />any ground-water criteria needed to take into account ambient water-quality as well as the <br />variations in that quality. CC&V further noted that statistically-accurate representations of <br />ambient water quality typically fit log-normal distributions and that our experience with these <br />distributions suggested that the mean plus five or six sigma (standard deviations) had been found <br />to begin to describe the natural range of these distributions. CC&V also discussed that ground- <br />water criteria based on the existing water quality data for ground water could serve as a <br />threshold that would, if reached, require (1) examination for a trend that would suggest the <br />measured value was not spurious, and (2) investigation of possible sources if the threshold <br />continued to be exceeded. <br />CC&V does not feel that the proposed criteria reflect this approach. <br />CC&V agrees that the closest one can assign a possible use to the waters of the Cripple Creek <br />Mining District is to theorize that the water might be used, in part, for agriculture. Of course <br />it is not a potential source of drinking water. Given the influence of sewage effluent for Victor <br />and Cripple Creek, given the ambient mineralization of the District, given the grazing use of the <br />surrounding lands, given the difficulty of completing a dependable well in the granodiorite, and <br />given the prior appropriation of water in the entire Arkansas Valley, the water available for use <br />is limited. As you know, water is supplied to the Victor and Cripple Creek areas from <br />
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