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INSPEC37313
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INSPEC37313
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Last modified
8/24/2016 9:42:54 PM
Creation date
11/18/2007 11:00:42 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
Inspection
Doc Name
Inspection Report
Inspection Date
7/26/2007
Media Type
D
Archive
No
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During this inspection we focused on the public lands owned by the US Forest Service, White River <br />National Forest. This includes the five underground mine azeas, access roads to those portals and the <br />associated facilities covering a total of 236 acres. All access roads to the portal azeas have been reclaimed <br />and locked gates have been installed to prevent unwanted access. Inspectors gained access using all <br />terrain vehicles. The following narrative is presented in the order we visited each azea. <br />Mine 4. Access to the Mine 4 portal area is provided by reclaimed Roads B and C. Revegetation on <br />these roads in well established and erosion control is provided. Mine 4 consists of a reclaimed mine <br />bench and a loadout area approximately 200 feet below the portal azea. A conveyor line connected the <br />two areas and it has been reclaimed. <br />During reclamation operations, the Division staff noted that two species were prevalent in the Coal Basin <br />area -Purple reedgrass (Calamagrostis purpurascens) and an upper elevation Senecio (Senecio atratus). <br />Seeds from both of these native plants were collected for use in the reclamation and appear abundantly <br />throughout the reclaimed azeas including the bench outslopes of reclaimed Mine 4. <br />The Mine 4 azea is stable, vegetated and no unnatural erosion features aze present. <br />Mine 1 and Mine 2. These two reclaimed portal areas are inclose proximity and are accessed by <br />reclaimed Road D. One spot on Road D is eroding at a natural drainage crossing. These portal areas are <br />stable, runoff is controlled by bench and road gradients to flow naturally off the reclaimed azeas. <br />Revegetation efforts have been successful at each of the portal areas; there is less vegetative cover on the <br />Mine 2 loadout azea below, however no erosion problems were observed. <br />Sutey Refuse Pile. Revegetation on this refuse pile is good; however the area is heavily grazed, <br />diminishing the overall vegetative cover. Weed control efforts undertaken, several years ago to control <br />Canadian thistle, plumeless thistle and houndstongue were successful. There are few weedy species <br />evident on the pile. However, if heavy grazing continues, weedy species could become a problem. <br />Ditch 8 shows signs of erosion. Previous efforts to stabilize the ditch were marginally successful. This <br />azea will be monitored and may be a candidate for additional work depending upon availability of funds. <br />Old Refuse Pile. MCC had reclaimed a lazge part of the old Refuse Pile and the Division completed the <br />remaining reclamation project. The Division undertook extreme surface roughening on the steep slopes <br />of this pile above Dutch Creek which has proven to be very successful in controlling erosion. <br />Revegetation efforts are excellent on this pile. <br />Mine 3. Road E and Road F provide access to Mine 3. Revegetation and erosion control efforts have <br />been successful on these roads with one exception. There is a problem area below the Mine 3 bench on <br />the southern outslope. Drainage from the bench flows through a down gradient natural drainage that is <br />eroding. This drainage crosses Road F in a couple of locations. Previous attempts to control the erosion <br />with native nearby materials, such as logs, have been mazginally successful. Monitoring of this gully in <br />the future will continue and it may be a candidate for future work if funds are available. <br />A rock avalanche and downed timber has blocked the upper part of Road F on the toe of the Mine 3 <br />northern outslope. Good vegetative growth of native forb and grass species is taking root on the <br />outslopes, which is a dazk shaley material. Transplanted trees and shrubs are thriving here including blue <br />spruce, gooseberry, wild rose, cinquefoil and mountain maple. <br />
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