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INSPEC04342
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INSPEC04342
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Last modified
8/24/2016 8:59:04 PM
Creation date
11/18/2007 8:15:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Inspection
Doc Date
12/16/2005
Doc Name
Adequacy Response Letter for Exploration AM1
From
Mountain Coal Company, LLC
To
DMG
Inspection Date
11/15/2005
Media Type
D
Archive
No
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Water Resources <br />The town of Paonia, situated about 11 miles west of the exploration area, averages around 15 <br />inches of precipitation annually. Given that precipitation increases as elevation increases, the <br />annual precipitation of the Dry Fork area would be expected to be somewhat higher. An <br />estimated 75% of the annual precipitation occurs during late winter and early spring, mostly as <br />snowfall. June, July, and August are often the driest months. <br />The East Fork of Minnesota Creek and the North Fork of the Gunnison River are the principal <br />drainage systems in the area, flowing east to west both north and south of the exploration areas. <br />The Dry Fork exploration area is drained primarily by Deep Creek, which flows northward into <br />Ravens Gulch and by intermittent streams that comprise the Dry Fork of Minnesota Creek <br />drainage, which in turn flows west, and southward into Minnesota Creek. Minnesota Creek joins <br />the North Fork of the Gunnison River at the town of Paonia. <br />The Rollins Sandstone Member is located beneath the Lower Coal Member of the Mesa Verde <br />Formation. The Rollins Sandstone, a massive marine sandstone, has been identified in literature <br />as a potential regional aquifer. Recent monitoring well data and analytical data, however, <br />indicates a low potential for aquifer characteristics in the exploration area. Localized perched <br />ground water aquifers occur within the sandstone lenses of the Upper Coal Member and the <br />Barren Member of the Mesa Verde Formation. <br />Recent water inflows encountered at the West Elk Mine, operated by Mowrtain Coal Company, <br />indicate that significant amounts of non-tributary water can be held within and transported <br />through fault zones in the Mesa Verde Group including the Rollins Sandstone. Faults intercepted <br />during mining of the B-Seam at the West Elk Mine have encountered substantial inflows and in <br />all instances the flows have quickly diminished and stabilized to a minimal amount. <br />Vegetation <br />Montane meadow, aspen, mountain shrub, and coniferous forest habitat types with drainage's <br />containing riparian corridors characterize vegetation in the exploration area. Of these habitat <br />types, aspen is the most abundant, followed by coniferous forest, montane meadow, mountain <br />shmb, and riparian respectively. Various grasses and other mountain shrubs occur sporadically <br />throughout the exploration area. No threatened, endangered, or candidate plant species have been <br />identified in the exploration areas. <br />Soils <br />Soils in the exploration area are mainly derived from the Mesa Verde and Wasatch Fomrations <br />and have relatively high clay content. By limiting the size of drill sites and retaining topsoil for <br />reclamation purposes, revegetation should not be a problem in this area. The revegetation of <br />previous drill sites has been very successful within this and adjacent exploration areas. <br />4 <br />
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