2009-04-20_REPORT - C1980006 (3)

Home Browse Search

Marr Mine and Loadout April 15, 2009 2008 Reclamation Report Management (BLM) and the Office of Surface Mining (OSM) concurred with the DRMS' approval decision. Prior to the approved Release, the Division held a performance bond in the amount of $700,270.00 for the mine area and the Loadout site. With approval of SL-04, the Division released $680,651.00 from the above amount, reducing the performance bond to $19,619.00. The remaining amount of the bond is more than adequate to perform reclamation tasks at the Loadout site and the 8 remaining acres at the mine area if it should become necessary. 2.0 MINING AND TOPSOIL REMOVAL Active mining operations at the Marr Mine ceased in January 1993 and no mining or significant topsoil removal activities have occurred subsequent to that date. 3.0 BACKFILLING AND REGRADING No backfilling or re-grading was conducted in any new areas at the Marr Mine or Loadout during 2008. However, Ponds C and G were backfilled, embankments and spillways removed, regraded, re-seeded, mulched and crimped in 2006. The estimated reclaimed area of the ponds and related ditches is 7.9 acres. 4.0 OVERBURDEN STOCKPILES No overburden stockpiles remain at the Marr Mine. The primary overburden stockpile at the Marr Mine was removed and the associated disturbance area reclaimed in 1993-94 in conjunction with reclamation of the 720 Pit. 3.0 ROADS In the mine area, the width of both the main entrance road to the facilities area and the access road across Bush Draw north of County Road 12E were reduced in 1995. The remaining road segments are classified as permanent light-use roads for post-reclamation access. Two additional rock dams were installed in the main road-ditch directly west of the shop facilities area. In 2005 Kerr requested that the temporary light use road status be changed to permanent for the Pond G access road and 900 feet of the mine entrance road where it merges from the intersection at CR12E with the mine entrance road. The request was in response to the BLM's ability to retain access to their adjacent surface properties. Permanence was granted by DRMS during 2007. 4.0 TOPSOILING AND REVEGETATION Ponds C and G, their associated soil stock piles and ditches were reclaimed in September 2006 (7.9 acres). The seed mixture was consistent with the approved permanent seed mix and was drill-seeded at the prescribed rate. Following seeding, the areas were mulched with certified weed free hay which was then crimped into the soil. Top soiling and mulched seeding was conducted in 1999 on approximately 8 acres within the Mine Area including the designated disposal area on the southeast edge of the shop/warehouse facilities pad and the former powder magazine area, soil stockpile area, and associated road.