_INSPECTION - C1994082 ‎(73)‎

• Permit No: C1994082
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 5/26/2009
• Email Name: DTM
• 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.
Permanent Channels
Upper watershed channels could not be accessed. Lower watershed channels that could be viewed were not
flowing, with the exception of YPM-6-3 and tributary that was flowing from spoil discharge. Segments of
Channels YPM 6-2, and YPM-7, were severely scoured and will require grading and TRM mat replacement and
new installation in some reaches. The operator's 2009 Rill and Gully survey map identifies a large number of
additional permanent channel segments that will require maintenance. A more thorough inspection of these
locations will be made during the June inspection, when site access is improved.
Sediment Ponds
Sediment Ponds 12, 12A, 13, and 14 were accessible and were inspected. All of the ponds contained open
water and all were discharging, with the exception of Pond 12A. Discharge water was clear at the ponds that
were discharging. Pond 12A water level had obviously gone down rapidly, apparently due to infiltration into the
spoil beneath the pond. The spoil spring that emerges near the downstream toe of the Pond 12A embankment,
first noted during the April 2009 inspection, was continuing to discharge considerable flow.
Backfillinc and Grading; Slides & Damage
The operator has completed and submitted the 2009 Rill and Gully survey map, which identifies numerous
erosion features and slide features that will require repair during the 2009 field season. The Division will assess
these topics more thoroughly in a subsequent inspection, when site conditions allow for better access to the
entire mine area. During this inspection, observations focused mainly on the lower portions of the Pond 12
watershed, a significant area of which is designated "Slide Remediation Area" on the R&G map. Monitoring and
assessment of the Pond 12 slide(described in previous inspections) is on-going; remedial plan is to be
developed and submitted later this year.
A few erosion and slide features within the Pond 12 watershed were noted during the field inspection that do not
appear to have been delineated on the R&G map, including:
• Ground settling immediately south of Pond 12, with a fresh scarp up to 2 feet or more in height and
approximately 45 feet in length;
• Gully incision along the TRM segment of YPM-7;
• Concentrated rill erosion (from runoff down scraper route)on revegetated slopes north of YPM-6-2.
These features will need to be properly repaired. Measures will need to be taken to prevent recurrence of rill
erosion associated with scraper route flow concentration; installation of closely spaced water bars and/or
additional TRM channels in appropriate locations would appear to be warranted. The scraper route apparently
will need to be left open for future haulage of topsoil to the lower Pond 12 watershed area.
A steep non-topsoiled slope north of YPM-6-1 was viewed from a distance. This slope(located along a former
haul road route between two undisturbed habitat blocks)appears to be heavily rilled, and was marked on the
R&G map for"repair and reseeding". The slope was not topsoiled, as it was located within a "steep slope
topsoil salvage variance area". The area will be viewed more closely during the June inspection, and repair
options will be discussed with the operator.
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