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GENERAL39602
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Last modified
8/24/2016 7:59:00 PM
Creation date
11/23/2007 10:15:17 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
General Documents
Doc Date
8/24/2007
Doc Name
Summary Report Coal Basin Mine Reclamation Projects
Permit Index Doc Type
Reclamation Project
Media Type
D
Archive
No
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1999 Reclamation Summary <br />Pro'ect Acrea a Reclaimed Current Ownershi <br />Bear Creek /Old Refuse <br />Pile <br />8 <br />Public <br />Facilities Area 15 Public /Private <br />Rock Tunnel Area <br />Maintenance <br />1 <br />Private <br />North Basin Steep Slope <br />Revegetation <br />6 <br />Public <br />Noxious Weed Control 0 Public /Private <br />Fall Maintenance 0 Public <br />2000 <br />Ditch 8 Reconstruction. Ditch 8 is a long, steep drainage ditch located at the south <br />easterly most margin of the Sutey Refuse Disposal Area. This drainage channel did not <br />function as designed, so it was rebuilt in 2000. The channel was widened, and a double <br />layered soil retention system designed to hold soil in place at high water velocities was <br />installed. Energy dissipation structures and other water diversions were installed as well. <br />The area was privately owned, but has since been transferred to public ownership. <br />Pond Reclamation. This project was designed to transform the sediment ponds on <br />private and public lands throughout the mine into maintenance-free water retention <br />structures, while providing benefits to wildlife and other area values. All ponds at the <br />site, excepting those that treat the mine water discharge (016 pond system) were subject <br />to this project. <br />All of the sediment retention ponds in Coal Basin had been regulated by the Colorado <br />Water Quality Control Division under a National Pollution Discharge Elimination System <br />(NPDES) permit held by Mid Continent Resources. By 2000, the contributing areas to <br />the ponds had been substantially reclaimed, thus sediment contribution to the ponds was <br />minimal. Prior to project implementation, the Colorado Water Quality Control Division <br />terminated the NPDES permit for all but the 016 ponds. In order to facilitate NPDES <br />permit termination, and thus project initiation, DRMS applied for and received a Storm <br />Water permit that covered each of the ponds to be affected by the project. This permit <br />was eventually terminated in 2005. The 016 ponds NPDES permit was terminated at the <br />request of Mid Continent Resources under a separate action at a later date. <br />The project entailed removal of the corrugated metal pipe (CMP) discharge structures, <br />reducing the slope in the pond embankment caused by CMP removal, and lining of the <br />excavation with rock rip rap. All affected areas were planted at the water line elevation <br />with a wetlands seed mixture and willows. Areas above the water line were planted with <br />an appropriate upland seed mixture. <br />16 <br />
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