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November 16,2022 C-1981-019/Colowyo Coal Mine ZTT <br /> North Trib. East Pit Ditch and Prospect Ditch.The Prospect Pond held water but was not discharging at the time of <br /> the inspection.No issues were observed. <br /> Ponds associated with the Gossard Loadout were inspected. This included Gossard,Rail Loop and Stoker Siding <br /> Ponds. Each pond held water but only Stoker Siding Pond was discharging. The Rail Loop and Gossard Pond are <br /> designed for full containment and do not discharge. Each pond was stable with no issues. <br /> Collom ponds Section 25, Section 26, Section 36,Middle and Sidehill were inspected. Section 36, Section 25 and <br /> Middle Pond run in serious with each other and collect runoff from the eastern portion of disturbance from the <br /> Collom Pit. Each of these ponds held water with no discharge. Section 25 Pond has received maintenance on the <br /> primary spillway. The maintenance was completed prior to the inspection and water levels have not reached to the <br /> elevation of the spillway. Discussion with the mine representative stated that unfortunately maintenance did not fix <br /> the small leaking that was occurring within the primary discharge pipe. The Sidehill and Section 26 ponds run in <br /> series with each other as well and receive runoff from the western portion of the Collom Pit.The Section 26 Pond <br /> held water however was not discharging at the time of the inspection.All Collom Ponds were stable and no issues <br /> were observed. <br /> Prospect Pond. Section 26 Pond. <br /> TOPSOIL—Rule 4.06 <br /> Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3;Redistribution 4.06.4: <br /> Topsoil placement has been occurred along the recent West Pit regrade.The soil has been rough graded as staging <br /> for final grading once weather allows for spreading. <br /> Topsoil Pile 16E was inspected. Topsoil Pile 16E is located along the crest of the West Pit highwall. Topsoil from <br /> this pile is being removed from this western end of this pile in support of the recent West Pit reclamation.No <br /> issues observed. <br /> Number of Partial Inspection this Fiscal Year: 3 <br /> Number of Complete Inspections this Fiscal Year: 2 <br /> Page 5 of 8 <br />