INSPEC40307

• Permit No: C1980006
• IBM Index Class Name: Inspection
• Doc Date: 12/13/1995
• Doc Name: COAL INSPECTION REPORT
• Inspection Date: 12/11/1995
• 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 during the
inspection and the facts or evidence supporting the enforcement action.
Backfill and Grading: Three areas of concern had been identified
in the Division's November 14, 1995 inspection of Pit 1. These
three concerns were; 1) grade out a knob located on the south west
ridge of PD-3 (Pit 1), 2) assure that south facing slope of PD-4 is
graded to a 3H:1V or gentler grade, and 3) assure positive
drainage in PD-4. The knob has been graded out and the ridge line
blends with the adjacent landscape. The South facing slope at PD-4
was measured using a hand held Abney level. The slope was measured
at 16°, which translates to a 28$ slope (3.6H:1V). PD-4 had been
regraded and positive drainage established. These three items of
concern have been satisfied.
The 720 pit was inspected. Reclaimed pit was snow covered but
showed no signs of excessive gully formation.
Topsoil: Topsoil has been redistributed alongside light use road
A, within the pit 1 area, and alongside light use road B. During
the inspection topsoil was being utilized from topsoil pile E-3 and
being distributed on pond embankments. Topsoil replacement depths
were verified in the pit 1 area (PD-3 and PD-4), and in Bush Draw
(light use road B). Topsoil depths were determined using a wheeled
backhoe to dig pits. Then the interface between topsoil and
subgrade material was determined by looking for texture and color
difference. Topsoil replacement thickness was measured above this
interface to the soil surface. Pits were dug in the flatter
portions of the drainages and at the toe of the slopes. Care was
taken to stay out of designed PD-3 and PD-4 channel. Slick
conditions with snow cover and damp soils restricted access on
steeper portions of the slopes with the backhoe available. Topsoil
thickness verification on the upper slopes and ridge line will be
performed at a later date.
Fourteen soil pits were dug with the backhoe and topsoil depth
measured. Approximate locations are marked on enclosed map.
Measurements recorded were:
1: 1.3' 8: 1.2'
2: 1.3' 9: 1.0'
3: 1.3' 10: 1.2'
4: 1.3' 11: 1.2'
5: 1.5' 12: 1.2'
6: 1.5' 13: 0.8'
7: 1.2' 14: 0.9'