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WSP11863
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WSP11863
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Last modified
1/26/2010 3:19:08 PM
Creation date
10/12/2006 5:14:41 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8200.750
Description
San Juan River General
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
8/1/1986
Author
USFS
Title
Wolf Creek Valley Ski Area - Revised Draft - Environmental Impact Statement - San Juan National Forest - 1986 - Chapter IV to end
Water Supply Pro - Doc Type
Report/Study
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<br />01'1"1 ~~ <br />00 C,.,. 'i <br /> <br />should not experience loss of function, but will in fact, <br />function as filters to detain silt and seeliment prior to <br />entering surfoce or sLu:>surface woters. The small, eph611eral <br />drainage char:nels that emerge from the wetland area ll'ay <br />become muddy and turbid during construction. However, tl1ese <br />channels will ultimately filter through wetlands prior to <br />entering the West Fork of the San Juan Fiver. Runoff fram <br />highway pavement and minor erosion of tl1e rood base Jllay <br />continue over the long-term; however, the downslope wetlands <br />will trap and filter sediment and highway runoff. Since the <br />road construction will consist of fill rJacement rather than <br />cut and dredge, subsurface flows should not be altered. <br />~~intenance of existing surface and subsurface fl~is by <br />culverting will insure that the wetland area hydrology does <br />not change. <br /> <br />The entire developnent is obovE< the ~!est Fork and Wolf Creek <br />100 year floodplain, inCluding the proFosed sewage tr8atment <br />plant and the U.S. Highlvay 160 prof:osed realigm,ent. A <br />section of the proposed golf course lies within the West Fork <br />100 year floodplain. This is pemdssible onder FeclE'ral <br />floodploin guidelines for developnent. Floods of greater <br />than 100 year recurrence would inundate much of the golf <br />course, although most of the base area apr:ears to be above <br />the estimated 500 year floodplain on the West Fork of the San <br />Juan River. <br /> <br />(2) Alternatives Two and Three <br /> <br />Alternatives Two and Three include the additional effects of <br />the ski area develorment on wetlands on National Forest <br />lands. Since the l'I'etlands have not been mapped, the exact <br />effects are unknown. It is ar,ticip;ted that must of the <br />estimated six acres of wetlands can be avoielecJ o~. these areas <br />are not desirable for c1evelopnent. This is consistent ~lith <br />Forest Service policy in regard to the Wetland Executive <br />Order 11990 which is to avoid, to the extent [.osdble, <br />impacts associated with the destruction, loss or degradation <br />of wetlands. <br /> <br />e. Nationwide Rivers Inventory <br /> <br />(ll Alternative One <br /> <br />This alternative dces not chonge the river's ineligibility <br />for the ~~tional Wild and Scenic Rivers 8'jstem. It appears <br />that wild and scenic rivers opportunity is precluded where <br />the river crosses private lands because Mineral County has <br />already preliminarily approvecl the pur> for the project.. <br />without the land price incentive for the developer whicb jf; <br />create(] by the ski area, the POD could be cbanged fOI C< ",ue" <br /> <br />If-I <br />
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