INSPEC22263

• Permit No: C1981041
• IBM Index Class Name: Inspection
• Doc Name: Inspection Report
• Inspection Date: 3/25/2003
• Media Type: D
• Archive: No

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 d~lring the inspection
and the facts or evidence supporting the enforcement action.
for the site, and subsequent sampling by the operator indicated typical levels, within permit
limits. Operator deduced that the reported values were likely erroneous, resulting from
analytical error. In a letter dated April 2, 2003, the Water Quality Control Division indicated
that the explanation was adequate, and that no enforcement or further corrective action
would be required unless there was continued non-compliance.
Hydrology Maintenance Items
1) One section of silt fencing at the South Fan reclaimed area had minor tears, and needs to
be repaired or replaced. A stake was broken on one of the silt fence segments at the
reclaimed Substation B. Silt fencing at the 016 minewater discharge site had been undercut
in a couple locations. The fence needs to be re-set and anchored to prevent washout
beneath the fabric.
2) Inlet ditch at the south end of Sediment Pond 2 had eroded and should be stabilized
3) Some build-up of the SAE berm within the reclaimed Topsoil Pile 7 location, adjacent to
Haul Road 4 (north side of the SAE) is warranted. It was discussed that, when vegetation
is successfully established and berm removal is approved, some finish grading will be
appropriate along the south side of the SAE to blend the reclaimed SAE area into the
adjacent Coal Creek channel bank, eliminating the several abrupt slope transitions.
4) The area between the toe of the RSRDA refuse pile and Pond 8 had been graded to
provide positive drainage into Pond 8, and the flex pipe that conveys seepage from the
portal area had been extended further down the RSRDA North Perimeter Ditch. The
drainage in this location had been improved as a result, but there is still wet ground along
the lower section of the ditch below the flex pipe outlet, apparently due to seepage from
the ditch. The operator indicated the piping would be extended at least another 20 feet so
as to discharge directly into the steep Pond 8 inflow channel, rather than the flatter ditch
segment where the pipe currently ends. It is likely that this measure will eliminate the
apparent seepage problem.
5) Pond 9 was dry, with sediment level approximately 8 to 12 inches below the primary
spillway inlet elevation. The 1" quarter 2003 sediment pond report noted that survey
indicated sediment volume in the pond was approximately 65% of capacity. The report
correctly noted that sediment cleanout should be undertaken this field season.
6) Some down-cutting had occurred along the berm/ditch leading to the north inlet of Pond
13, at the North Portal reclaimed area. The lower 40 foot segment of ditch had eroded up
to 15" deep. The segment needs to be repaired and properly stabilized.
Backfillina and Gradin
Backfilling and grading was visually assessed in the various areas where such work was
completed during 2002 or previously. All of these areas have been permanently seeded. In
general, the regraded areas appeared to be stable, with no excessive erosion or indications
of mass instability. Specific reclaimed areas are addressed below.