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September 29,2021 C-1981-019/Colowyo Coal Mine ZTT <br /> The Streeter and Prospect Pond were inspected. Each pond was stable with well vegetated embankments.Minimal <br /> water was observed in Prospect and Section 16 Pond.The Streeter Pond was discharging at the time of the <br /> inspection. <br /> West Pit: <br /> The Taylor,Taylor Trib.and East Taylor Ditch were inspection. Each ditch was stable and no issues were <br /> observed.Minor water flow was observed along the full length of the Taylor Ditch. Recent maintenance was <br /> performed on stock tank ETD1. <br /> The East Taylor and West Pit ponds were inspected.No issues were observed with either of the ponds. The West <br /> Pit pond was completely dry and the East Taylor pond was discharging. <br /> There are two seeps located just above the East Taylor pond. The larger seep is located to the west and contributes <br /> the majority of water to the pond. The seep located to the east recently has contributed a consistent light to a minor <br /> flow based on inspections.The area of the seep is extremely saturated and ponding is occurring. Cattails and other <br /> marshy vegetation has become established in the area. The east seep area is located at the toe of a surficial slump <br /> along the regraded slope of the West Pit.No signs of additional slumping or erosion was observed at the time of <br /> the inspection. <br /> South Taylor: <br /> The West and East Trib.of the West Taylor Ditch was inspected.These ditches collect runoff from the West <br /> Taylor Fill and direct it to the West Taylor Pond. These ditches are heavily armored with rip rap and no issues <br /> were observed. The Section 28 and 29 Collection ditches were also inspected. These ditches are located south of <br /> the South Taylor Pit. Each pit was stable and dry during the inspection. <br /> The Section 16 and West Taylor Pond were inspected. The Section 16 pond was dry at the time of the inspection. <br /> The West Taylor Pond held water and was discharging.All ponds were stable,well vegetated and no issues were <br /> observed. <br /> Collom: <br /> Ditches associated with the Collom mining area were inspected. This includes D-1,D-2,D-3,D-4 and D-6.All <br /> ditches except D-6 are armored with rip rap per the Colowyo PAP.All Collom ditches inspected were stable with <br /> no issues. <br /> The Section 36,Middle, Section 25, Sidehill and Section 26 ponds were inspected. Each pond held minimal water <br /> with no discharge. Each pond was stable and no issues were observed. <br /> Number of Partial Inspection this Fiscal Year: 2 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 4 of 9 <br />