_INSPECTION - C1981010 ‎(49)‎

• Permit No: C1981010
• IBM Index Class Name: INSPECTION
• Doc Name: OSM Inspection Report
• From: OSM
• To: DRMS
• Inspection Date: 10/13/2008
• Email Name: JHB
• Media Type: D
• Archive: No

A crack running perpendicular to the hill slope was found along the ` !
central portion of H-C-04 heading toward H-C-03. It averages about
1 —2 inche
s wide and is approximately 400 feet long. This narrow
solitary crack is not a major concern warranting a disturbance to the '
4 N..
surface. However, I would recommend monitoring the site— ,,
especially after significant rainstorm events.
Fig.2:H-C-04 crack
The drainage channel on the southeastern portion of H-C-03 is showing signs of erosion and
down-cutting (see figure 3). This channel has only a few check dams. We discussed excluding
the channel and proceeding with Phase I & II release for the
surrounding area, but that does not appear to be TMI's preferred
option. Mr. Luke is concerned about bringing heavy equipment
vein to the area and would prefer to put brush in the channel to
assist its healing process. We discussed the size of the
a.. watershed, its slope, the channel's curves, and other challenges
TMI faces. We agreed the channel needs work and will be
" revisited by DRMS (Jason Musick) and, if possible, OSM
(Christine Belka) before Phase I & II bond release is
granted. The surrounding area is well-vegetated and appears
Fig.3:H-C-03 eroding channel stable.
H-C-98 and H-B-98 are proposed for Phase III bond release. The areas stand out from
surrounding reclamation by the presence of 6-foot tall grasses. The drainage channel has been
maintained using brush to help heal downcut areas. This approach appears largely successful;
however, some small areas show signs of erosion. The surrounding area is well-vegetated and
stable.
Tuesday began in the central region of the proposed bond release area(Map Sheet 2) in the F-
AB-05 plot proposed for Phase 1 bond release. Jennifer Miaolo (BLM) accompanied us this day
and we briefed her on the bond release process, what we saw on Monday, and seeding/
vegetation sampling methods employed at the Trapper Mine.
Vegetation did not establish along the southeast side of F-
AB-05 (proposed Phase I) and numerous rills are forming
(see figure 4). The designated drainage ditches cutting a ? �� .q
across the slope collects these rills, but the rills become
larger where they cut through diversion embankments.
Russian thistle is the predominant plant (weed) in the area
with very little grass or other vegetation. This area appears <�
reasonably stable for Phase I bond release. However, it willY
require special attention before meeting Phase II
requirements.
Figure 4:F-AB-05 no vegetation/rills forming
Adjacent areas look significantly better. F-AB-02, F-AB-03, and F-AB-04 are proposed for
Phase I& II bond release (F-AB-02 is Phase II only). A distinct vegetation line marks the barrier