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October 15, 2019 C-1981-018/Deserado Mine CLW <br /> Inspection Topic Summary <br /> NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> N -Air Resource Protection R -Roads <br /> N -Availability of Records N -Reclamation Success <br /> N -Backfill&Grading N -Revegetation <br /> N -Excess Spoil and Dev. Waste N - Subsidence <br /> N -Explosives N - Slides and Other Damage <br /> N -Fish&Wildlife Y - Support Facilities On-site <br /> R -Hydrologic Balance Y - Signs and Markers <br /> Y -Gen. Compliance With Mine Plan N - Support Facilities Not On-site <br /> N -Other N - Special Categories Of Mining <br /> R -Processing Waste Y -Topsoil <br /> COMMENTS <br /> This was a partial inspection of the Deserado Mine conducted on October 15,2019. The inspection was <br /> completed by Clayton Wein of the Division of Reclamation, Mining and Safety(the Division). Kurt Blunt of Blue <br /> Mountain Energy(BME)was present for the inspection. The weather was clear with a temperature of 53 degrees <br /> F. The ground conditions were dry. <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 /> The primary focus of this inspection was to inspect the mine's sediment ponds before winter conditions <br /> begin. The Raw Water Lagoon is located at the southern portion of the permit area adjacent to the White River. <br /> The pond was impounding water during the inspection. The embankments of the pond were vegetated and stable. <br /> There were no indications of erosional features. The SDH-3/5 Dewatering System is located at the southeastern <br /> part of the permit area. The SDH-3/5 Dewatering System pumps water from the D seam mine workings. The <br /> pump was active at the time of the inspection(Photo 1). The system consists of three ponds; however, only the <br /> lower pond is utilized. The embankment had well established vegetation on it. There were no indications of <br /> instability or erosion. Discharge was occurring through the primary spillway. There were no observed blockages <br /> in the primary or emergency spillway. The B Seam Dewatering System No. I (Photo 2)was discharging though <br /> the primary spillway during the inspection. The system consists of several ponds to allow time to treat water <br /> pumped from the B seam mine workings. The embankments of the ponds were stable and vegetated. There were <br /> no observations of erosional features at the site. The second B Seam Dewatering System is located just north of <br /> the first B seam system. The system was inactive during the inspection. The first pond in the system was dry. <br /> The second pond was holding water(Photo 3). There was no water discharging from the second pond to the last <br /> pond. The last pond in the system was dry. Embankments of the ponds had well-established vegetation on them. <br /> There were no indications of erosion or instability. The spillways for the ponds were clear of obstructions and in <br /> good condition. The two ponds located at the Slot Storage were dry. The embankments of the ponds were stable <br /> and vegetated. There were no erosional features identified. The spillways for the ponds were clear of debris. One <br /> pond and one sump are located on the south side of the rail loadout. The RS-1 sump was dry at the time of the <br /> Number of Partial Inspection this Fiscal Year: 3 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 2 of 7 <br />