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GENERAL45415
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Last modified
8/24/2016 8:14:40 PM
Creation date
11/23/2007 1:46:55 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981029
IBM Index Class Name
General Documents
Doc Date
6/2/1993
Doc Name
PROPOSED DECISION & FINDINGS OF COMPLIANCE FOR RN2
Permit Index Doc Type
FINDINGS
Media Type
D
Archive
No
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forfeiture was inaccurate. A.T. Massey and OSM had entered into a settlement <br />agreement; there was no bond forfeiture. The renewal decision is conditioned <br />on the resolution of the Abandoned Mined Land Fee Audit. See Section A.7 of <br />this document for details. A final check on June 08, 1993 resulted in the <br />same recommendation to conditionally issue the renewal. <br />Description of the Environment <br />The Meadows No. 1 mine is located between elevations of 6500 and 7800 feet. <br />The mine was composed of two operational areas - that of the strip pit located <br />at about 7600 feet in elevation, and the facilities and loadout area located <br />at about 6600 feet. The Yampa River flows through the loadout and facilities <br />area from east to west. The pit area was located at a ridge line <br />approximately two miles south of the loadout and facilities area. A haul <br />road, 2.8 miles in length, connects these areas. <br />The strata in the location of the pit dip slightly more than the slope of the <br />surface topography. Four recognized bedrock formations outcrop or are <br />expressed in the vicinity of the mine. In descending order, they are the <br />Lewis Shale Formation, the Williams Fork Formation, and Iles Formation of the <br />Mesaverde Group, and the Mancos Shale (see Figure 2). Unconsolidated alluvial <br />deposits are found in the valley of the Yampa River, and in a small area of <br />Coal View Gulch, which runs from south to north to the east of the mine. The <br />bedrock units in the vicinity of the pit area of the mine dip from 13 to <br />20 degrees to the west. <br />Within the mining area the Iles Formation is the major formation, being <br />visibly expressed as the outcropping of the Trout Creek Sandstone to the west <br />of the mining area, and the outcropping of the Blacksmith coal seam <br />immediately east of the mining area. The Meadows No. 1 mine removed the <br />Pinnacle coal seam, which is located approximately 160 feet above the <br />Blacksmith seam. Both seams are located completely within the Iles Formation. <br />A number of faults have been located in the general area of the mine. Fault <br />axes trend west-northwest to east-southeast, and probably resulted from the <br />folding of strata in the vicinity. The Tow Creek anticline is located several <br />miles to the east of the mine, while the Hayden synclinal axis is located <br />approximately ten miles to the west. <br />The mining area was located near a ridge top. Drainages flowed from this area <br />into Grassy Creek, Coal View Gulch, and several unnamed ephemeral drainages. <br />All surface drainage eventually flows to the Yampa River. With the exception <br />of the Yampa River, all drainages are ephemeral and flow primarily in response <br />to snowmelt and heavy precipitation events. <br />Within the vicinity of the mine, ground water exists in both bedrock and <br />alluvial aquifers. Major bedrock aquifers in the vicinity are the Twentymile <br />Sandstone and the Trout Creek Sandstone. The major alluvial aquifer in the <br />area is associated with the Yampa River. A number of perched aquifers of a <br />discontinuous nature have been located in the area. <br />The climate of the area is characteristic of semi-arid steppe regions, and can <br />be described as having large fluct ations in daily temperature, a moderate <br />amount of precipitation, low humid~ty, and a large number of clear days. The <br />-5- <br />
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