_INSPECTION - C1991078 ‎(23)‎

• Permit No: C1991078
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 6/19/2008
• Email Name: MLT
• 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.
This was a complete inspection of the Hamilton Mine conducted by Marcia Talvitie of the
Colorado DRMS. Dave Andrews, the landowner, was present during the records check. No one
represented the operator during the field inspection.
Availability of Records
Records were available for viewing at the nearby Landfill office. A completed DRMS Availability
of Records checklist is attached.
Signs and Markers
A Mine Identification Sign was posted at the entrance to the mine permit area. Additional signs
were posted throughout the area, as required.
Roads
Roads were dry, and all areas of the permit were accessible by vehicle.
Hydrologic Balance
Pond A was completely dry. The water level in Pond B was considerably lower than what was
observed during the May 2008 inspection (Figure 1). According to Mr. Andrews, he had opened
the valve at the engineer's direction, and drawn down the level of the pond. A sample of the
discharge was collected and submitted for analysis. There was no standing water at the
downstream end of the discharge pipe.
At the roddway turnoff to Mine 3, the two 18" culverts were inspected and found to be clear. A
large tree lay across the channel immediately downstream of the lowermost culvert (Figure 2). It
did not' appear that the tree had obstructed flow in the channel, but the potential may exist.
Conversely, the tree might serve to slow the velocity in the channel and inhibit downstream
erosion. The culvert crossing the road to Mine 3 (north of the stock pond) was also clear.
Topsoil
Topsoil piles throughout the permit area were fenced to prevent access by cattle, and were
clearly identified with signs. The vegetative cover on the piles south of Mine 3 was mainly cheat
grass.
Revegetation
Beneficial species observed included Indian rice grass, rubber rabbit brush, sage, four-wing salt
bush, scarlet globemallow. For unknown reasons, several rabbit brush bushes located at the
turnoff to Mine 3 exhibited yellow foliage. Yellow sweet clover was common throughout.
Weeds
Two small patches of Knapweed were observed: one located immediately southwest of Pond A,
near the fence corner, and another at the east end of the dam for Pond B. In the immediate
vicinity of the Pond B knapweed, a small patch of Whitetop was also observed. The vegetation
at the east end of the dam did not include the desirable species located immediately to the
west. Perhaps the surface had been disturbed at some time following reclamation, but was not
re-seeded with the approved seed mix.
Hamilton Mine C-1991-078 19-Jun-2008