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September 4, 2019 C-1981-019/Colowyo Coal Mine ZTT <br /> The Collom Temporary Excess Spoil Fill continues construction.No issues were observed. <br /> FISH and WILDLIFE—Rule 4.18: <br /> Elk, deer and pronghorn were observed throughout the mine site. <br /> HYDROLOGIC BALANCE -Rule 4.05 <br /> Drainage Control 4.05.1,4.05.2,4.05.3; Siltation Structures 4.05.5,4.05.6; Discharge Structures 4.05.7, 4.05.10; <br /> Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br /> Drainage—Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br /> All ponds inspected were stable and no issues were observed. <br /> The following ponds inspected were dry. <br /> Section 25, Section 26, Sidehill, Temporary Facilities, and the Gulch A. <br /> The following ponds inspected held water with no discharge. <br /> Prospect, Gossard, Rail Loop, Section 36 and Middle. <br /> The following ponds inspected held water and were discharging at the time of the inspection. <br /> Streeter, Stoker Siding and West Taylor. <br /> Cleaning at the Streeter Pond has been completed. Pond cleaning operations have now moved to the Gossard <br /> Pond. <br /> Portions of the sediment fence below Topsoil Piles 29A and 3 0B were separated and in need of repair. Repair of <br /> the fences were conducted prior to the end of the inspection with no issues. <br /> The following ditches were inspected. <br /> South Collection, East Side Collection,the upper portion of Final East Pit, D-1,D-2, D-3, and D-6. <br /> All ditches were stable and no issues were observed. Minor erosion was observed along portions of the South <br /> Collection Ditch. <br /> Number of Partial Inspection this Fiscal Year: 2 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 3 of 8 <br />