_INSPECTION - C1982056 (46) - Laserfiche WebLink

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TCC personal stated that the small pumped pond at the 6MN site and the ponds associated with the 18LT vent shaft have been permitted through the CDPHE. Copies of these permits will need to be submitted to the Division and incorporated into the C-1982-056 PAP. Processing Waste Construction continues on the RDA expansion approved with TR-67 and TR-72. Topsoil stripping activities were continuing at the time of the inspection. Large and medium size rock is stockpiled and a large section of the required core drain has been completed. Topsoil continues to be stockpiled above the approved location for disturbance of the RDA expansion. A large pool of water has formed towards the toe of the RDA expansion. TCC personal stated that this water will be pumped out in order to continue with the core drain construction. '—may Topsoil striping at RDA Expansion Core Drain at RDA Expansion Support Facilities The construction at the 18LT ventilation shaft pad area has been completed with the exception of the dewatering line connection and final clean-up of non-coal waste. Contractors were on site working on the dewatering project at the time of the inspection. The mudpits remain open at the time of the inspection. The majority of the structures at the 18RT site have been removed with concrete slabs, casings, non coal waste, and the access road remaining. Abandonment reports will need to be submitted to the Division in regard to the mine openings associated with the 18RT site. Excess rock dust was observed at the 6MN site that will need to be addressed. Topsoil Topsoil was being stripped and stockpiled at the RDA expansion. TCC personal stated that all topsoil will be placed at the existing location east of the expansion area. No problems were noted. Revegetation The disturbance associated with the 18LT ventilation shaft dewatering project will require seeding upon completion of the disturbance. Subsidence TCC has recently subsided Routt County Road 27. No evidence of subsidence damage was noted during this inspection. Monitoring has been conducted on Routt County Road to ensure compliance with subsidence plans.