_INSPECTION - C1982057 ‎(33)‎

• Permit No: C1982057
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 10/14/2009
• Email Name: DTM
• Media Type: D
• Archive: No

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III. COMMENTS-COMPLIANCE
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.
Observations made during the SL-2 inspection with respect to specific reclaimed watersheds in
the original permit area are addressed below; reference is also made as appropriate to
measurements taken and observations made during detailed drainage reestablishment inspections
in 2005/2006. In general, drainage conditions and watershed stability have improved
considerably since the 2005/2006 inspections, due both to maintenance work conducted by the
operator in the intervening years and to increased ground cover in the reclaimed watersheds.
However, locations remain where maintenance is warranted to repair instances of both hillslope
and channel erosion. In a couple instances the Division considers the extent of maintenance to be
sufficient to warrant exclusion of defined drainage segments from the SL-2 approval area. In
most cases,required maintenance is of relatively minor magnitude and will not preclude approval
in SL-2,but will need to be completed prior to the end of the 2010 field season. In addition to
instances of hillslope and channel erosion, one significant area of mass instability was noted on a
reclaimed highwall slope in the upper 006 Gulch watershed, and the area affected by the
instability will be excluded from the Division's proposed SL-2 approval area. The reclaimed
watershed observations are presented below, presented in the order the drainages occur on the
landscape from north to south across the permit area.
Channel 005-El
The drainage channel runs from east to west along the toe of the reclaimed"D"Pit highwall, at
the extreme northern end of the permit area. The channel extends from near the ridgeline along
the eastern perimeter of the mining disturbance area down to the 005 Gulch confluence,just
upstream of Stock Pond T-20. The channel itself is riprapped and stable along its entire length,
Photo SL2-10 is representative. There has been some recent ground settling along short
segments near the west end of the regraded highwall slope,where cracks and minor scarps with
up to a foot of displacement were graded over by the operator prior to the SL-2 inspection(see
Photos SL2-7 and SL2-11). Continued visual monitoring will be warranted in the settlement
repair areas. A few hillslope rills were also recently repaired on slopes adjacent to the channel
(repair areas visible in Photo SL2-7, across the channel from the settlement repair location.
005 Gulch
This permanent channel runs generally southeast to northwest through the former"C" and"D"
Pit areas in the northern portion of the original permit area. The reclaimed drainage extends from
the eastern ridgeline down to its junction with 005-E1, a short distance upstream from Stock
Pond T-20, and continues for a short distance downstream to T-20, and from the outlet of T-20
for a short distance to the pit area disturbance boundary. Stock Pond T-18 is also located on the
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