_INSPECTION - C1981018 (24) - Laserfiche WebLink

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Construction of the foundation for an emergency generator was underway at the time of inspection. The generator will supply power to the mine ventilation system in the event of a power outage. Scott informed us that the mine has its explosives permit again. Explosive magazines are stored in a container near DP-1. B vent shaft 41 is fenced and marked. B vent shaft#3 is still under construction (see Figure 6). The casing is to be set in concrete. A crane is scheduled to arrive on Friday to complete this work. The shaft is labeled as dangerous but not yet fenced (fencing material on ground near site, to be fenced upon completion). RP-23 is a three-cell pond system. Upper cells receive most of the sediment. Water is pumped down to the lower cell when necessary to clean upper cells. At the time of inspection the lower cell was dry and the upper cells contained water and were not discharging (see Figures 7 & 8). Coal fines sediment in ponds but not in outlet channel indicates sedimentation ponds are functioning as designed. RP-1 was dry at the time of inspection. RP-4 contained very little water. SS-1 and SS-2 were dry at the time of inspection. Records review: By letter dated July 30, 2009 the second quarter sediment pond inspection report was certified by William Lepro. Minor problems to be addressed with the DP-1 discharge structure and enhancements to the emergency spillway (to better serve the intent of the design) were noted. The 2008 Annual Reclamation Report dated February 12, 2009 reported total disturbed acreage as 445.31 (5.97 ac for 2008), acres backfilled and graded as 124.25 (3.37 ac for 2008), acres topsoiled as 124.25 (3.37 ac for 2008), acres seeded as 105.71 (4.02 ac for 2008). The interim drill site seed mix was used. The 241h annual hydrology report for October 2007— September 2008 was on file. It included well and water usage information and all surface and groundwater monitoring reports. The DRMS permit is current with renewal 45 processed in June of 2009. Bond is current at ($5,630,311). Explosives permit 45-CO-103-33-2G-00657 for the use of high explosives expires July 1, 2012. CDPS general (storm water) permit COG-850000 expires 06/30/2013.NPDES permit 4CO-0038024 expires 09/30/2012. No MSHA ponds are on site. Special use permit(to mine coal in Rio Blanco) ID # 00-43 is current. SPCC plan dated 03/18/2008 was on file. Water well permit numbers 279067, 279068, 279069 from 10/28/2008 are on file. Additional notes: No disturbed area markers were observed on site. We discussed the interpretation of the marker rules. Jason stated that the intent of the rule is to differentiate on the ground what disturbance is approved in the permit. This facilitates his inspection responsibilities. Scott stated that the intent of the rule is to delineate what is approved for disturbance to aid construction crews, and that these markers may be removed after construction is complete. I agreed with Jason that disturbed area markers are to be maintained throughout the life of the 2