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REV94327
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REV94327
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Entry Properties
Last modified
8/25/2016 3:19:49 AM
Creation date
11/21/2007 11:39:46 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981026
IBM Index Class Name
Revision
Doc Date
1/29/1992
Doc Name
CANADIAN STRIP MINE PHASE II BOND RELEASE C-81-026
From
MLRD
To
OSM
Type & Sequence
SL1
Media Type
D
Archive
No
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r <br /> <br />/° t <br />r <br />) III III III II <br />T <br /> IIIII III <br /> STATE OF COLv~.~ <br />MINED LAND RECLAMATION DIVISION of ~o <br /> <br />Department of Natural Resources ~ <br />~~ =y ~Rr <br /> <br />7313 Sherman St.. Room 215 <br />Denver, CO 80203 ~I <br />, <br />'•r1,~'r. <br />303 866-3567 • raga <br />Fa x: 303 832.6706 <br /> Ray Romer. <br /> Governor <br /> Fretl R. Banta, <br /> D~~~SIOn DIfEGiOr <br />January 29, 1992 <br />Mr. Robert H. Hagen <br />Albuquerque Field Office <br />Office of Surface Mining Reclamation & Enforcement <br />625 Silver Avenue, S.W., Suite 310 <br />Albuquerque, New Mexico 87102 <br />RE: Canadian Strip Mine Phase II Bond Release, C-81-026 <br />Dear Mr. Hagen: <br />On November 13, 1991, the Colorado Mined Land Reclamation Board upheld <br />Colorado Mined Land Reclamation Division's August 1, 1991 decision to approve <br />a partial Phase II Bond Release at the Canadian Strip Mine. <br />At this time, there is one remaining issue which has been raised by the AFO. <br />This issue regards the stability of the water level in the two ponds approved <br />as permanent impoundments. These were included as part of the Phase II Bond <br />Release. <br />Rule 4.05.9(1)(b) requires permittees to demonstrate that the level of water <br />in proposed permanent ponds is sufficiently stable to support the intended <br />use. We believe that a working definition of hydrologic stability in the <br />context of the arid west must include the concept of the water level being <br />resistant to sudden changes in position or other conditions. Surface-fed <br />impoundments may be filled quickly during snowmelt or following a large Storm <br />event, in a precipitous, "unstable" manner. Conversely, this impoundment will <br />typically lose water from use and evaporation slowly over time in a 'stable' <br />manner. <br />Rule 4.05.9(1) provides the Division scme latitude in its interpretation <br />through the use of the word 'sufficiently.' Colorado evaluates demonstrations <br />for this portion of the permanent impoundment regulations on a site specific <br />basis according to the period in which the intended use occurs, and the need <br />for such water. The Federal land management agency employs a similar <br />evaluation process. Paula Ledford, a hydrologist in the Kremmling BLM office, <br />indicated that the BLM builds impoundments ~nithin grazing allotments in the <br />anticipation that they will have water in them for some period of time between <br />May and August annually. BLM also builds impoundments to promote widespread <br />utilization of the grazing allotment. This concept is consistent with the <br />post-mining land use of rangeland at the Canadian Strip. <br /> <br />
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