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CONSUMPTIVE WATER USE <br /> Water removed from the Purgatoire River for use in the mines is <br /> dependant upon the coal production rate. Usage rates for consumptive <br /> uses are as follows: <br /> Continuous Miner 5.85 gallons/raw ton <br /> Longwall 17 .72 gallons/raw ton <br /> Prep Plant 20. 10 gallons/raw ton <br /> During 1989, no coal was produced at the New Elk Mine, 990, 865 <br /> tons were produced at the Golden Eagle Mine, and 692, 233 tons were <br /> processed through the prep plant. Approximately 75 percent of all <br /> coal was produced by continuous miner. Using the above consumptive <br /> rates, 26.8 acre-feet were used for mining at the Golden Eagle and <br /> 42 .7 acre-feet were used in the prep plant. Metering of water taken <br /> at the New Elk Mine for domestic use was calculated at 0.5 acre-feet <br /> for 1989. Total water consumed from the Purgatoire during 1989 is <br /> calculated at 70.0 acre-feet. <br /> All domestic water utilized at the Golden Eagle Mine is supplied <br /> by the City of Trinidad's water line. Total water use estimate is <br /> based on employment of 150 people and 100 gallons per day per person. <br /> Daily water use would be 15, 000 gallons per operating day. All of <br /> this water is passed through the domestic system, treated in the <br /> sewage treatment plant and discharged to the Purgatoire system. <br /> Assuming that the mine operates 260 days per year and that 10 percent <br /> of this water is consumed, water gain to the Purgatoire would be <br /> approximately 11 acre-feet per year. <br /> Water produced during mining is pumped to the surface, clarified <br /> and discharged to the Purgatoire. Estimated water inflow (see <br /> -60- <br />