2012-04-20_INSPECTION - C1980001

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April 16, 2012 C- 1980 -001 /Edna Strip Mine RDZ Inspection Topic Summary NOTE: Y= Inspected N =Not Inspected R= Comments Noted V =Violation Issued NA Applicable Y - Air Resource Protection R - Availability of Records Y - Backfill & Grading Y - Excess Spoil and Dev. Waste NA - Explosives Y - Fish & Wildlife R - Hydrologic Balance R - Gen. Compliance With Mine Plan R - Other NA - Processing Waste R -Roads R - Reclamation Success Y - Revegetation NA - Subsidence Y - Slides and Other Damage R - Support Facilities On -site R -Signs and Markers NA - Support Facilities Not On -site NA - Special Categories Of Mining Y - Topsoil COMMENTS The weather was cool and cloudy; the ground contained very little snow. AVAILABILITY OF RECORDS — Rule 5.02: Records were found to be in order - see checklist. HYDROLOGIC BALANCE - Rule 4.05: Center Ridge Pond, West Ridge Pond, and Moffat Pond were all discharging clear water. Other observations: • The primary spillway out of the West Ridge Pond is rusted and contains a sizable hole approximately 10 feet from the downstream end. • The small pond below the West Ridge Pond was not discharging. • As usual, there was a sulfuric smell from the discharge at the Moffat Pond. For all ponds, no problems were observed with embankments or other pond features. Some of the check dams above West Ridge Pond are holding water. No problems were identified. South of the intersection of the North Road and the Lower Moffat Road, there is a low spot where water could potentially pond and flow over the road rather than drain to a culvert. There is currently no sign that this has happened. The roadside ditch should be re -cut or the problem should be otherwise addressed. GENERAL MINE PLAN COMPLANCE: The mine was found to be in general compliance with the permit. Number of Partial Inspection this Fiscal Year: 7 Number of Complete Inspections this Fiscal Year: 4 Page 2 of 7