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• 1995 Annual Hydrologic Report <br />Page 7 <br />inflows and discharges may indicate a more accurate balance of flows between location <br />1 and location 8. The variation in the monthly average discharges is primarily due to the <br />fluctuation in the dewatering schedule at location 8. <br />Consumptive Use <br />A monthly listing of domestic water usage is shown on data page CA-3. Meter 1 supplies <br />the buildings near the Roadside South entrance gate. Meter 2 supplies the preparation <br />plant and the Roadside South office and bathhouse. The fact that the usage was the <br />same each month on this meter and has been for a couple of years was attributed to the <br />Town of Palisade using an estimated number because the meter is out of order. <br />Domestic water used in the plant is a calculated number. Meter 3 supplies the Roadside <br />North facilities but has not been hooked up since operations resumed. <br />Mine water is used underground for dust suppression in the mining process and on <br />roadways. Water usage underground is not measured but is being estimated. The mine <br />• water is also used for process water in the preparation plant. The water circuit in the <br />plant is closed but leaves the plant as added moisture in the coal and refuse. Mine water <br />usage for the Year is given on data page C-3. Water added to the coal during the mining <br />and processing can be roughly calculated from coal moisture levels measured at different <br />stages in the process. The following information was used to make calculations for this <br />year: <br />-Estimated equilibrium moisture of 4.5% <br />-Measured raw coal tons of 309,683 for the Roadside South Portals and 405,241 <br />for the Roadside North with estimated moisture of 8 and 7% respectively. <br />-Measured clean coal tons of 500,762 with an estimated moisture of 9.6% <br />-Estimated refixse tons of 237,288 with an estimated moisture of 18% <br />The moisture added during mining calculates out to be 5.05 million gallons and the <br />moisture added during cleaning calculates out to be 8.70 million gallons. The metered <br />mine water into the plant was 3.85 million gallons resulting in 4.85 million gallons of <br />domestic water being used in the plant. <br />Water was used for as the primary means of dust control on the surface and underground <br />roads during the year. Magnesium chloride and calcium chloritde were used on roads, <br />• both surface and underground, to reduce the manpower requirements for keeping the <br />roads damp. Between the two mines approximately 7200 gallons of water per day, 3 <br />