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December 2, 2015 C-1981-025/North Thompson Creek Mine CCW <br />Inspection Topic Summary <br />NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA Not Applicable <br />N - Air Resource Protection R - Roads <br />R - Availability of Records Y - Reclamation Success <br />Y - Backfill & Grading N - Revegetation <br />N - Excess Spoil and Dev. Waste N - Subsidence <br />N - Explosives N - Slides and Other Damage <br />R - Fish & Wildlife N - Support Facilities On-site <br />R - Hydrologic Balance R - Signs and Markers <br />N - Gen. Compliance With Mine Plan N - Support Facilities Not On-site <br />N - Other N - Special Categories Of Mining <br />N - Processing Waste N - Topsoil <br />COMMENTS <br />This was a complete inspection of the North Thompson Creek Mine conducted on Wednesday the 2nd of <br />December, 2015. The inspection was conducted by Clayton Wein of the Colorado Division of Reclamation, <br />Mining amid Safety (DRMS). The site is inactive; therefore no company representative was present for the <br />inspection. The weather was clear and breezy with a temperature of about 35 degrees Fahrenheight. The mine site <br />was covered in snow ranging from about 2 to 4 inches. <br />AVAILABILITY OF RECORDS — Rule 5.02.4(1): <br />The records are kept at the Garfield County Courthouse located in Glenwood Springs. The records were <br />in good condition. Deficiencies were identified with the records. The NPDES records for the 2nd and 3rd <br />quarter of 2015 were not in the records. Records of the quarterly pond inspections were missing the 2nd <br />and 3rd quarter reports. The NPDES permit had expired on January 31, 2015. Please update these sections <br />of the records. For more information, see the attached Availability of Records form, included at the end of this <br />report. <br />FISH and WILDLIFE — Rule 4.18: <br />Throughout the mine site tracks in the snow from rabbits and deer were observed. <br />HYDROLOGIC BALANCE - Rule 4.05 <br />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; <br />Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br />Drainage — Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br />- The Mine No. 1 and Mine No. 3 discharge pipes are located at the inlet of the Long Pond. At the time of the <br />inspection, the Mine, No 1 pipe was discharging. The Mine No. 1 pipe was discharging at an approximate rate of <br />5 to 10 gallons per minute (Photo 1). The snow cover made it discharge difficult to determine if any discharge <br />was occurring from the Mine No. 3 pipe. <br />- The Long Pond embankments were covered in snow and the water impounded in the pond was partially frozen <br />Number of Partial Inspection this Fiscal Year: 0 <br />Number of Complete Inspections this Fiscal Year: 2 <br />Page 2 of 8 <br />