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<br />3400 <br />C-01538 <br />(7-680) <br />AUG 27 1996 <br />Mr. Larry Reschke <br />Powderhorn Coal Company <br />P.O. Box 1430 <br />Palisade, Colorado 8156 <br />Re: Monitoring Stations in Jerry Creek and Coal Canyon, Federal Coal Lease <br />C-01538 <br />Dear Mr. Reschke: <br />By letter dated June 17, 1996, you submitted information on the proposed <br />hydrologic and subsidence monitoring stations. The monitoring stations <br />• consist of two crest stage gauges and five subsidence monuments to be located <br />on the lease in the Jerry Creek and Coal~Canyon drainages in the Little eook~ <br />Cliffs WSA. The monitoring plan was requested by the Colorado Division of <br />Minerals and Geology and approved in January 1996 as a technical revision to <br />the existing mine permit. <br />Under the approved monitoring schedule, the crest gauges are checked monthly, <br />which would involve driving a vehicle to each site and checking the gauge. <br />The subsidence surveys are conducted twice a year and involve surveying each <br />monument from a remote survey setup on a hill between Jerry Creek and Coal <br />Canyon. The proposed vehicle access into Jerry Creek is using the existing <br />oil and gas way which cuts through the ridge from the Coal Canyon road. The <br />sites would be reached by driving along the existing way in Jerry Creek. <br />Vehicle access to the Cosl Canyon sites is along the existing road. <br />Based on valid existing rights associated with the pre-FLPMA coal lease and <br />the minimal impacts associated with the proposed activity, the following lease <br />stipulations are waived and will not apply to the proposal: <br />1. Seasonal closures for wild horse habitat (Coal Canyon closed <br />December 1 to July 1), deer and elk winter range (closed December ~1 to <br />May 1), and peregrine falcon habitat (closed March 15 to July 1). <br />2. No surface occupancy in the WSA. <br />In addition, no cultural resource survey is required because there are no <br />cultural sites in the area and the surface impacts are minimal. <br />In order to protect the WSA values, and the visual and surface resources, this <br />office will require that Powderhorn comply with the following mitigation <br />measures: <br />• A14-5-25 3/02 <br />