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May 24, 2023 C-1982-057/Seneca II-W Mine RAR <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 8 <br />Number of Complete Inspections this Fiscal Year: 4 <br /> <br /> Page 2 of 13 <br /> <br /> <br />Inspection Topic Summary <br />NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br />R - Air Resource Protection <br />N - Availability of Records <br />NA - Backfill & Grading <br />NA - Excess Spoil and Dev. Waste <br />NA - Explosives <br />Y - Fish & Wildlife <br />R - Hydrologic Balance <br />R - Gen. Compliance With Mine Plan <br />NA - Other <br />NA - Processing Waste <br /> <br />R - Roads <br />R - Reclamation Success <br />R - Revegetation <br />Y - Subsidence <br />R - Slides and Other Damage <br />NA - Support Facilities On-site <br />N - Signs and Markers <br />N - Support Facilities Not On-site <br />N - Special Categories Of Mining <br />N - Topsoil <br /> <br /> <br />COMMENTS <br /> <br />This was a partial inspection of the Seneca IIW Mine, C1982057, operated by Seneca Property LLC. The <br />inspection was conducted, images analyzed and the report prepared by me, Robin Reilley of the DRMS. <br />Miranda Kawcak, mine representative, was present throughout the inspection and Amber Michels of the <br />DRMS accompanied us. No hydrologic or air quality issues were detected at the time of inspection. It <br />was a partly cloudy day and no breeze. Temperatures hovered around 70 degrees F. The slide <br />area above Pond 15 was observed. The slide occurred due to heavy snow in the winter of <br />2012/2013 with snowmelt saturating the slope above. The slope was reconstructed in 2015 and <br />comprises approximately 20 acres of reclamation for release. <br /> <br />PERMITTING ACTIONS in PROGRESS: <br />MT8 <br /> <br />OUTSTANDING MAINTENANCE <br />Bentonite application under pond 16s and 17 flumes. <br /> <br />INSPECTION: <br />GENERAL MINE PLAN COMPLIANCE: <br />Reclamation is complete and executed as permitted. Approximately 106.2 acres of Phase I released acres <br />remain for bond release. These acres comprise the main haul road, Pond 6 and area above and its <br />associated slide area above; Ponds 15 on the east side of the site and its slide area and Pond 16. Year <br />nine vegetation sampling of the above mentioned areas occurred in August 2022 and year 10 will occur in <br />2023. Reclamation appears stable with well established and diverse vegetation. <br /> <br />ROADS – Rule 4.03 <br />Construction 4.03.1(3) I 4.03.2(3); Drainage 4.03.1(4) I 4.03.2(4); Surfacing and Maintenance <br />4.03.1(5) and (6) I 4.03.2(5) and (6); Reclamation 4.03.1(7) I 4.03.2(7) <br />o Roads were in adequate repair and offered access to the entire site. <br /> <br />