_INSPECTION - C1981025 ‎(13)‎

• Permit No: C1981025
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• From: DRMS
• To: Minrec Inc
• Inspection Date: 3/22/2011
• Email Name: JRS
• Email Name: SB1
• Media Type: D
• Archive: No

March 22, 2011 C-1981-025/1Vorth Thompson Creek Mine JRS
Inspection Topic Summary
NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable
N -Air Resource Protection R -Roads
R Availability of Records R -Reclamation Success
R -Backfill&Grading N -Revegetation
N -Excess Spoil and Dev.Waste N - Subsidence
N -Explosives N - Slides and Other Damage
N -Fish&Wildlife N - Support Facilities On-site
R Hydrologic Balance N - Signs and Markers
N -Gen. Compliance With Mine Plan N - Support Facilities Not On-site
R -Other N - Special Categories Of Mining
N -Processing Waste N -Topsoil
COMMENTS
This was a complete inspection of the North Thompson Creek Mine conducted by Jim Stark of the Colorado
Division of Reclamation,Mining and Safety. The mine is reclaimed and has been approved for a full Phase III
Bond Release on all but approximately 4 disturbed acres and 411 affected acres. The disturbed area is basically a
series of treatment ponds for the portal discharge. The weather was cool,windy and overcast and the ground was
mostly covered with snow.
AVAILABILITY OF RECORDS—Rule 5.02.4(1):
-All of the necessary records were available at the Garfield County Courthouse in Glenwood Springs. See the
Availability of Records form at the end of this inspection report.
BACKFILL and GRADING—Rule 4.14 Contemporaneous Reclamation 4.14.1;Approximate Original Contour
4.14.2; Highwall Elimination 4.14.1(2)(f); Steep Slopes 4.14.2,4.27; Handling of Acid and Toxic Materials
4.14.3; Stabilization of Rills and Gullies 4.14.6:
-All of the areas of the mine,with the exception of the permanent ponds and roads,have been backfilled and
graded. These areas have all been final Phase III Bond Released. These areas all remained stable.
HYDROLOGIC BALANCE—Rule 4.05 Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5,
4.05.6; Discharge Structures 4.05.7,4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water
Monitoring 4.05.13; Surface Water Monitoring 4.05.13; Drainage—Acid and Toxic Materials 4.05.8;
Impoundments 4.05.6,4.05.9; Stream Buffer Zones 4.05.18:
-Both portals 1 and 3 were discharging at the time of the inspection. Water was flowing from the portals and into
the long pond. The long pond was stable and well vegetated. There was iron staining on the dirt and rocks at the
beginning of the pond where the portals discharge. This staining becomes almost nonexistent approximately 50
feet beyond the portal discharge point. The long pond flows through a culvert into the treatment ponds.
-Treatment ponds T1 and T2 were both well vegetated and stable at the time of the inspection. Pond T1 was
flowing into pond T2. Water was flowing from pond T2 into permanent sediment pond(Phase III Released)P-9 at
Number of Partial Inspection this Fiscal Year: 0
Number of Complete Inspections this Fiscal Year: 3
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