_INSPECTION - C1982057 ‎(66)‎

• Permit No: C1982057
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• From: DRMS
• To: Seneca Coal Company
• Inspection Date: 6/6/2011
• Email Name: SLB
• Email Name: SB1
• Media Type: D
• Archive: No

June 6,2011 C-1 982-057/Seneca II-W Mine SLB
A deep narrow gully had formed through the undisturbed area at the east end of Topsoil Stockpile QQ,
perpendicular to Road G. This will need to be repaired.
ROADS—Rule 4.03❑❑Construction 4.03.1(3)/4.03.2(3)❑❑Drainage 4.03.l(4)/4.03.2(4)❑❑Surfacing and
Maintenance4.03.1(5)and(6)/4.03.2(5)and(6)1-1 El Reclamation 4.03.1(7)/4.03.2(7):
Equipment was working on the narrowing of the Mine Entrance Haul Road(MEHR)and cleanup of the
material in 006 Gulch that resulted from the slide along the road. The operator anticipates that the earthwork
portion of the road narrowing reclamation project will be complete in approximately ten days.
The outfall downdrain of Culvert A5 needs to be maintained where downcutting has occurred. An 8"-10"gully
has developed beyond the rip rap channel at the Culvert PM10 outfall,where PM4C and PM4 converge. The
outlet side of TAHRC 7 was downcutting and in need of repair on the outlet side;the inlet side was also eroding
where runoff from the adjacent agricultural land enters the culvert. TAHRC 12 needed to be cleaned out on the
outlet side; it was about 1/4 blocked. The inlet side of TAHRC 16 was downcutting. TAHRC 18 (at the Savage
Shop entrance)was about half full of sediment and needed to be cleaned out.
Portions of LU5 were affected by cracks and slumps running through the reclamation above channel PM2C.
The road ditch between culvert G3 and Topsoil Stockpile QQ was in need of maintenance,where downcutting was
occurring. The road ditch downdrain between Topsoil Stockpiles PP and QQ had diverted off of the TRM and
will need to be repaired. The ditch on the west side of Road G,between Culvert G5 and Pond 005 was
downcuttting significantly(as much as 3' at the pond inlet)in the unarmored portion of the channel. The upper
150' of the channel is lined with rip rap,but the downcutting occurs downstream of the rip rap. This area was
discussed with the operator,and it was suggested that the operator might add small check dams along the
remainder of the drainage to reduce the erosive velocities while minimizing any additional disturbance along the
currently undisturbed areas along the channel.
A 1'-2' gully was coming off of the Ridgeline Access Road at the fence line crossing approximate 1,200' north of
the intersection with LU1; the runoff through the gully drained to Pond 015. The same issue exists at an
undisturbed drainage into Pond 009; there is a 1'-2' deep gully coming off the Ridgeline Access Road at LU1; and
1300' south of the LUl intersection where a 10"gully extends about 200 yards through the undisturbed area.
These areas were included in the discussion with the operator about the possibility of adding dissipating structures
to prevent erosion in undisturbed areas between disturbed areas and sediment ponds.
The operator needs to install silt fence or a catchment basin at the ditch outlet just south of Culvert J-1,where
drainage exits the roadway in to the undisturbed area to the west. The inlet side of Culvert J-4 needed to be
maintained where downcutting has occurred.
REVEGETATION—Rule 4.15❑❑Vegetative Cover;Timing:
White top,houndstongue,and thistle were observed at various areas throughout the site. White top was
observed on Topsoil Stockpile I and Topsoil Stockpile QQ.Thistle was observed on the Pond 016 embankment,
on the 016A slide area shrub plot,the area between Ponds 016 and 016A,near Stock Tank T25,on the inlet side of
Number of Partial Inspection this Fiscal Year: 10
Number of Complete Inspections this Fiscal Year: 4
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