2019-10-30_INSPECTION - C1994082

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October 14,2019 G 1994-082/Yoast Mine RAR Inspection Topic Summary NOTE: Y=Inspected 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 Y -Backfill & Grading R -Revegetation NA -Excess Spoil and Dev. Waste Y - Subsidence NA -Explosives R - Slides and Other Damage Y -Fish&Wildlife N - Support Facilities On-site R -Hydrologic Balance R - Signs and Markers R -Gen. Compliance With Mine Plan N - Support Facilities Not On-site N -Other NA - Special Categories Of Mining NA -Processing Waste Y -Topsoil COMMENTS This was a partial inspection of the Yoast Mine, C1994082, operated by Seneca Property LLC. The inspection comprised a partial phase II, a partial phase III and, a combined phase II and III bond release (SL7) inspection. The weather was clear,with temperatures ranging from 40 to 60 degrees F. The ground was dry. Present at the inspection were; Miranda Kawcak and Ellie Agioutanti representatives of Seneca Coal Co; Tom Medlin with the Office of Surface Mining (OSM), and myself; Robin Reilley with the Colorado Division of Reclamation, Mining, and Safety(DBMS). The inspection was conducted,the images and report prepared by me,Robin Reilley of the DBMS. The site was dry with established vegetation going dormant for the winter. INSPECTION: CORRECTED MAINTENANCE ITEMS: 1. Removed cattails at Pond 10 discharge structure and cleaned out the sediment in the weir. GENERAL MINE PLAN COMPLIANCE: Main haul roads were dry and in good repair. No offsite air quality issues or hydrologic impacts were observed at the time of inspection. Reclamation and vegetation appeared in good condition. Vegetation appeared well established at the time of inspection and was going dormant. No expanses of bare ground or significant weed infestations were noted at time of inspection. Ponds and drainage ways appeared to be functioning adequately. During the review of the vegetation data prior to the inspection, the vegetation sampling methodology was found to be in compliance with Rule 4.15.11(1) and the permit application. ROADS Rule 4.03 Construction 4.03.1(3), 4.03.2(3);Drainage 4.031(4), 4.03.2(4); Surfacing and Maintenance 4.03.1(5) and(6) 4.03.2(5) and(6). o Roads in and around the facilities were found to be in good repair and functioning adequately. o A couple of steep sections showed some ruts. o No standing water was noted on any roads at the time of inspection SL7 proposes a release comprising 498.8 acres of livestock grazing and wildlife habitat as follows: o Partial phase II on 143.3 acres o Partial phase III on 41.4 acres o Combined phase II and phase III on 314.1 acres, as well as the release, after phase II is achieved, of three NPDES outfalls and one surge tank as follows: Number of Partial Inspection this Fiscal Year: 2 Number of Complete Inspections this Fiscal Year: 1