2017-08-16_INSPECTION - C2009087

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August 2,2017 C-2009-087/Peabody Sage Creek Mine TNL GENERAL MINE PLAN COMPLIANCE: Maintenance items continuing from June 2017 complete inspection: • Culvert on the West of Pond 2 needs the cattails cleaned out • Pond 3 needs maintenance at the outfall. • Vegetation needs to be cleared out between Sump 1 and 2 in the portal area • Portal area smart ditches need maintenance • Gully is starting to form at the start of the lower smart ditch that should be stabilized • Vegetation needs to be cleared from the Upper sump outfall • Trash rack needs to be put back on at the Lower Sump • Old Shop Area: vegetation needs to be cleared from culverts, and two culverts were present along the road that are not shown on the drainage map,which should be updated. • Culvert T47 needs maintenance • Culvert SC13 needs maintenance • Culvert 30A needs veg cleared • Culverts at Mine office need to be cleared and cattail removed • Broken pipe with sulfur smell,flowing toward Pond 3 needs to be repaired. RECLAMATION SUCCESS -Rule 4.15,Rule 3: The proposed Partial Phase III bond release, SL-4, area includes 422 acres of surface disturbance that were mined and reclaimed under the Seneca 11 mine permit and later transferred to the Sage Creek mine. The land surface and mineral ownership are State and federal. The areas within the bond release were reclaimed between 1978 and 2005. Permanent features of the bond release are shown on Map 2,which accompanied the SL-4 application and is available on Laserfiche. The drainages were walked to determine reclamation success and the revegetated areas observed for vegetative cover, diversity, and potential presence of weedy species. A detailed write-up of the bond release areas and the evaluation of the release of these areas will follow in the Divisions SL-4 findings document. With a few minor exceptions noted below as well as in the SL-4 adequacy letter, dated 8/15/2017,the SL-4 was stable with no erosional features and very well vegetated. One area along a steeper section of permanent access road F 1 had notable down-cutting. • Erosional down-cutting is occurring along Road F1 within Section 1. This area,within the SL4 release area,should be armored with rip rap to prevent further damage. REVEGETATION ❑Rule 4.15 Vegetative Cover; Timing: SL-4 proposed bond release areas appeared very well vegetated with the exception of the area shown on Maps 1 and 2 as being within the disturbance boundary. This area does not appear to have been ripped or Number of Partial Inspection this Fiscal Year: 0 Number of Complete Inspections this Fiscal Year: 1 Page 3 of 8