2022-02-11_INSPECTION - C1981010

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8 February 2022 C-1981-010/Trapper Mine RAR Inspection Topic Summary NOTE:Y=Ins ected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable R -Air Resource Protection R - Roads R -Availability of Records Y - Reclamation Success R - Backfill & Grading R - Revegetation NA - Excess Spoil and Dev. Waste Y - Subsidence R - Explosives Y - Slides and Other Damage R - Fish& Wildlife R - Support Facilities On-site R - Hydrologic Balance R - Signs and Markers R - Gen. Compliance With Mine Plan NA - Support Facilities Not On-site NA - Other NA - Special Categories Of Mining NA - Processing Waste R - Topsoil COMMENTS This was a complete inspection of the Trapper Mine; permit C1981010,operated by Trapper Mining Inc. The inspection was conducted and the report and photos prepared by me,Robin Reilley of the DRMS. Graham Roberts,Trapper Mine representative was present throughout the inspection. Skies were clear. Temperatures ranged between 20 and 30 degrees Fahrenheit. The air was calm,cold and dry. Coal and overburden were being hauled. Permit Revision 11 (PRI 1)is in the process of development with a proposal to open a C Pit depending on core results. Coring is proposed to begin in summer 2022. PERMITTING ACTIONS in PROGRESS.- OUTSTANDING MAINTENANCE o Ditch reconstruction along the north edge of the N pit to handle surface flow. o Clearing vegetation below the flume at No Name Pond#5. INSPECTION GENERAL MINE PLAN COMPLIANCE: Activities in the L,N and J Pits were observed and appear to be progressing as permitted. The inspection began at the west end of the site at the J pit,where higwall mining that began in January was observed. Coal hauling coal from J pit was underway. One dragline was idle at the N Pit at the time of inspection. Several benches exist in the N Pit from west to east. The N Pit floor is exposed on the west end of the Pit. The coal level has been reached at the west end of the N Pit. There are several seeps along the south and east walls of the pit that exhibited themselves as ice. Some dust rose out of the N Pit due to spoil hauling in the dry conditions. It is too cold to water roads. The highwall miner is scheduled to begin extraction in the N Pit in the near future The Molly Brown dragline was removing overburden at the top of the L Pit. Machinery was operating at the east edge of the Pit removing the last knob of overburden. Coal and overburden were being hauled from L Pit. No blasts were observed to be set up in the L Pit. SIGNS and MARKERS—Rule 4.02 o Topsoil stockpiles observed were clearly marked with identifying signs. o The mine site identification signs observed at the main mine access point,(entrance from State Highway 13),was intact, and displaying all required information: mine name,operator name, address,phone number,DRMS permit number and contact information. Number of Partial Inspection this Fiscal Year: 6 Number of Complete Inspections this Fiscal Year: 3 Page 2 of 9