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INSPEC14601
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INSPEC14601
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Last modified
8/24/2016 9:16:03 PM
Creation date
11/18/2007 9:06:41 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Inspection
Doc Name
Inspection Report
Inspection Date
9/9/2002
Media Type
D
Archive
No
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III. COMMENTS -COMPLIANCE <br />Below are comments on the inspection. The comments include discussion of observations made <br />during the inspection. Comments also describe any enforcement actions taken during the inspection <br />and the facts or evidence supporting the enforcement action. <br />This was the 3`d Quarter complete inspection of the Roadside North and South Portals Mine, conducted by <br />Dan Mathews of DMG, accompanied at various times by Tim Stover and Tonya Hammond, representatives <br />of Snowcap Coal Company (SCC). Field inspection was conducted the afternoon of September 9, all day <br />September 10, and the morning of September 13. Office records were reviewed the afternoon of <br />September 12. <br />Weather was cloudy and mild to cool throughout the week, with scattered light rain showers during the <br />period. Heavier rains had fallen on portions of the mine azea over the weekend prior to the inspection, and <br />weekend rains in the Coal Creek watershed had resulted in significant flow in the Coal Creek channel <br />through the permit area. The Coal Creek flow was of typically short duration, and by Monday afternoon <br />there was no flow in the channel. <br />Enforcement Actions <br />Two enforcement actions were issued as a result of the inspection <br />NOV CV-2002-018 was issued forfailure to construct or mairaai» disturbed area drainage collection <br />pipes tofunction as designed, to ensure that adverse impacts to hydrologic balance are minimized <br />Specifically, apparent leak in collection pipe has developed because water inflow at upper end does not <br />discharge through pipe outlet into Pond 8 per approved design. Also, outlet pipe diameter is 6 ,rather <br />than 8 diameter specifred on Map 6B. <br />The NOV pertains to a disturbed area drainage collection conveyance system consisting of inlet drains on <br />the South Mine portal bench/parking area, and associated buried PVC pipes designed to route storm <br />drainage and portal area seepage from the portal bench down to Sediment Pond 8. On September 9, Tonya <br />Hammond of SCC had arrived at the mine site prior to the inspection, and discovered problems with two <br />sets of drainage collection pipes in the South Mine area. The fvst problem was a plugged pipe leading <br />from a collection sump on a road segment immediately west of the portal bench pazking area, to Sediment <br />Pond 8. The operator took appropriate and timely measures to address this problem prior to the end of the <br />inspection, and it was not included in the NOV. The item is discussed more fully in a following section of <br />this report. The second problem Ms. Hammond discovered was that, although seepage from the mine ` <br />portal azea was drnining into a small inlet drain on the mine bench, there was no dischazge at the outlet end <br />of the pipe into Pond 8. <br />When I arrived at the site at approximately 12:15 p.m., we observed the locations of concern and discussed <br />possible remedial measures. Checking the site Sediment Control Map (Exhibit 6B), we noted that the map <br />showed one buried 8 PVC pipe leading from the road segment collection sump drain into Fond 8, and a <br />separate buried 8 PVC pipe leading from three gated collection drains along the west end ofthe portal <br />bench, into Pond 8. The map does not show the smaller collection drain inlet located in the mine bench <br />parking area further to the east, adjacent to the shop building, which presumably also ties into the same <br />pipe collection system associated with the three larger grated drains. We also noted that, while the map <br />shows an 8 diameter PVC pipe leading from the collection drains to the pond, the blue PVC pipe that <br />outlets into Pond 8, appazently the pipe from the pertinent collection drains, was only 6 diameter. On <br />September 10, a contractor hired by the operator ran a significant volume of water through one of the <br />collection drains on the mine bench, but the water did not discharge through the pipe outlet into Pond 8. <br />This would seem to confirm that there is a break in the pipe. We were unable to locate any areas of surface <br />seepage or erosion along the apparent route of the pipe, where the break might have occurred. <br />
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