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Initial box-cut material from the East Pit was placed in the Streeter Fill. Initial boxcut material <br /> from the West Pit was placed in the West Pit permanent excess spoil fill. Initial boxcut material <br /> from the Section 16 Pit was placed in the Section 16 Fill. <br /> After blasting, the truck and shovel operations also removes the top three or four seams of <br /> overburden and interburden at the South Taylor Pit. This material is hauled to temporary <br /> overburden storage piles TS West and TS East (to the north of the pit). Approximately 42.7 <br /> million cubic yards of material will be placed in the temporary overburden stockpiles. Upon the <br /> completion of mining, this overburden will be hauled back to the South Taylor Pit. The initial <br /> box-cut material for the South Taylor Pit will be placed in two permanent valley fills (the West <br /> Taylor and East Taylor Fills). Approximately 90 million cubic yards of material will be placed <br /> in the two fills. <br /> For development of the initial box cut of the Collom Pit, similar procedures as the South Taylor <br /> Pit will be used. Once the overburden is sufficiently fragmented from blasting to allow for <br /> efficient removal and loading, Colowyo will utilize truck and shovel techniques to load and haul <br /> overburden. Overburden will be transported to the temporary out-of-pit spoil stockpile located to <br /> north of the Collom Pit. A total of approximately 28 million cubic yards of overburden will be <br /> placed in the Collom temporary spoil pile. Of that 28 million cubic yards, approximately 21.4 <br /> million cubic yards will remain out of pit and 6.6 million cubic yards will be used for final <br /> backfill in the Collom Pit. <br /> Coal Production <br /> Extraction of coal is projected to continue until the year 2036. Production in any one year over <br /> the next five years is not expected to exceed 9 million tons per the Colorado Department of <br /> Public Health and Environment(CDPHE) Construction Permit 95MF 1040 (Exhibit 8, PAP). <br /> Recovered coal from the South Taylor Pit is trucked to a primary crusher and coal stockpile <br /> located just north of the East Pit. From there, coal is trucked to a secondary crusher and coal <br /> stockpile located approximately four miles north at the Gossard Loadout. Coal recovered from <br /> the Collom Pit will be transported and crushed at the Collom Facility area east of the Collom Pit. <br /> Coal is crushed, stored and loaded at the Gossard Loadout. Coal is then shipped to customers by <br /> rail. In addition, coal may also be hauled from the crushers or the loadout area by truck to State <br /> Highway 13. <br /> Disposal of Wastes <br /> There is no washing of coal product at the Mine. Non-coal solid wastes are placed in designated <br /> zones (minimum of twenty-five feet of overburden, off the bottom, of pits during backfill <br /> operations). Recoverable oil, grease, and other lubricants are stored and shipped to recycle <br /> facilities. Sanitary wastes are disposed of in septic tanks, leach fields and evaporative ponds. <br /> (4.11.4, PAP) <br /> Proposed Decision and Findings of Compliance January 5,2023 <br /> Permit Renewal No. 8 P a g e 125 <br />