REP35636 - Laserfiche WebLink

Home Browse Search

•S ~~~ ~~~~~~~~~~~~~ ~~~ ~~~a 3 STATE OF COLORADO Roy Romer, Governor DEPARTMENT OFNATURAL RESOURCES MINED LAND RECLAMATION DIVISION FRED R. BANTA, Dlreetor DATE: December 21, 1987 T0: North Thompson Creek Mine File, Sixty Percent Bond Release Inspection FROM: Candy Thompson ~`r-?'~ ~-_. RE: NORTH THOMPSON CREEK MINE, C-81-025, BOND RELEASE INSPECTION OF DECEMBER 17, 1987 I was accompanied on this inspection by Dennis Burns of the OSM and Larry Reschke of Snowmass. The BLM and Forest Service were contacted about the inspection but were unable to participate. Mr. Robert Perry of the Fourmile - North Thompson Creek Mineral and Land Company met us at the mine site to discuss reclamation. He stated that he was very pleased with the reclamation that had been done at the mine site. There was sane discussion about access through Fourmile's property to the road leading up over into Middle Thompson Creek on Anschutz's land. This matter will need to be resolved through Snowmass and the interested parties. All areas of the mine disturbance have been reclaimed. The final slopes at the mine are all of lesser slope than was approved in the technical revisions of 1986 and 1987. All access roads have been reclaimed at the mine site except for the road leading over into Middle Thompson which the Anschutz Corporation requested remain in. The haul road was the existing County Road and, of course, still remains. The Inactive Mine Program's Peat Bog Project for the abandoned No. 2 portal remains on site also. No topsoil was available at the mine site due to the pre-disturbance existing there. Soil sampling and fertility testing was accomplished by the operator prior to seeding. Some amendment was done to the top material. This information will be supplied to the Division by Snowmass Corporation and will be forwarded to OSM upon receipt. The Division did some sampling of the four feet of covering acquired at the refuse area. One hole was sampled down to four feet and had the four feet of cover. Another hole extended to three feet prior to the auger breaking and had non-toxic cover to that depth. Certifications also exist from the contractor of the four feet of cover. A71 the drainages at the mine site have been established. Three sediment ponds remain in place at the No. 1 Mine area. The 3 Mine regraded area drains down the County Road to the uppermost sediment pond. This sediment pond discharges through a culvert under the road and into a rip rap permanent channel. The main portion of the No. 1 Mine drains into the preexisting sediment pond 8. This sediment pond has been regraded and seeded 423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866-3567