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1996 Annual Hydrologic Report <br />• Page 7 <br />-Measured raw coal tons of 707,507 for the Roadside South Portals and 340,528 <br />for the Roadside North with an estimated moisture of 8 and 7% respectively. <br />-Measuued clean coal tons of 686,005 with an estimated moisture of 9.1 <br />-Estimated refuse tons of 406,298 with an estimated moisture of 18% <br />The moisture added during mining calculates out to be 8.40 million gallons and the moisture added <br />during cleaning calculates out to be 13.86 million gallons. The metered mine water into the plant <br />was short due to meter problems and mine and domestic water volumes for the plant aze estimates. <br />Water was used for as the primary means of dust control on the surface and underground roads <br />during the yeaz. Magnesium chloride and calcium chloride were used on roads, both surface and <br />underground, to reduce the manpower requirements for keeping the roads damp. Between the two <br />mines approximately 7200 gallons of water per day, 3 days per week were used. Usage on the <br />surface roads was approximately 12,000 gallons of water per day, 6 days per week, 75% of the yeaz. <br />Water for the surface roads was taken from an approved point of diversion in the Highline canal. <br />A summary of the estimated consumptive use of water is as follows: <br /> Total Gallons/ Gallons/ <br />• Source Gallons raw ton clean ton <br />Domestic <br />Surface Facilities 1,500,000 2.1 2.2 <br />Preparation Plant 4,151,000 4.0 6.1 <br />Mine <br />Mining 8,400,000 8.0 12.2 <br />Prepazation Plant 9,709,000 9.3 14.2 <br />Underground Roads 1,123,000 1.1 1.6 <br />Highline Canal <br />Surface Roads 2.808.000 2_6 4.1 <br />TOTAL 27,691,000 26.4 40.4 <br />Impacts <br />The total dissolved solids for the mine dischazges calculated with monthly TDS and monthly flow <br />for the yeaz come out to be 68.8 tons for 001, 668.7 tons for 002 and 428.2 tons for 004. This total <br />of 1163.7 tons represent a 2.5% decrease over the 1995 TDS discharge and a 23% decrease over the <br />1994 discharge. The corresponding flow dischazge for 1996 was 5% below the 1995 discharge and <br />• 17% below the 1994 dischazge. The 1996 TDS dischazge represent .070% of the 1.666 million tons <br />calculated to be carried by the River. Again for 1997 the discharge of TDS is expected to increase <br />