_INSPECTION - C1981019 (23) - Laserfiche WebLink

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III. COMMENTS - COMPLIANCE Colowyo C-1981-019 c!;C,�' 14 Oct 2009 Pg 1/6 Below are comments on the inspection. The comments include discussion of observations made during the inspection. Comments also describe any enforcement actions taken during the inspection and the facts or evidence supporting the enforcement action. This was a partial inspection of the Colowyo Mine conducted by Jim Stark of CDRMS. The inspection was conducted on 14 and 15 October 2009. Jennifer Sekulski-Barton of CCC accompanied me on 14 October 2009 and Ryan Pawlowski of CCC accompanied me on 15 October 2009. Also present on the inspection was Johanna Cramer of CDRMS. The mine was actively mining coal and hauling coal to the loadout at the time of the inspection. The mine was also loading a train on the morning of 15 October 2009. The weather was warm and overcast and the ground was dry on both days of the inspection. There was a considerable amount of rain in the area but it did not rain at the site on either day of the inspection. The Division collected elevation data from the recently reclaimed slopes of the East Pit and the three newly constructed portions of the permanent drainage channels in the East and West Pits (the Final East Pit Ditch, the North Tributary, East Pit Ditch and the Taylor Tributary Ditch). The data was collected with a Trimble GeoXT GPS unit. The elevations shown were not based on a control point and are, therefore, relative elevations. Roads: - The main haul road to the office area and the loadout is a paved road. The road is well maintained and stable. - There is a network of haul roads in the West Pit and South Taylor Pit. These roads are all considered in-pit roads. All of these haul roads were well maintained and stable at the time of the inspection. There was some fugitive dust coming off of the roads but Colowyo had their water truck operating. They were also doing maintenance work on the roads (bading work), which is an ongoing operation at the mine. - The road in Taylor draw (to access the East Taylor, West Taylor and West Pit Ponds) was stable and well maintained at the time of the inspection. No erosional problems were noted on the road. Hydrologic Balance: - The Section 16 Pond (NPDES 009A) contained water approximately 8 feet below the top of the discharge pipe and was not discharging. The pond embankment was well vegetated and stable. - The Gossard Pond (NPDES 003A) contained water approximately 3 feet below the discharge pipe and was not discharging. The pond embankment was well vegetated and stable. The concrete sump that was built several years ago has done a good job at keeping sediment and coal fines out of the pond. - The West Pit Pond (NPDES 008A) contained water approximately 7 feet below the top of the discharge pipe and was not discharging at the time of the inspection. The embankment was well vegetated and stable. The presettling pond was almost dry.