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REP00916
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Last modified
8/24/2016 11:29:55 PM
Creation date
11/26/2007 9:48:05 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Report
Doc Name
1998 Annual Hydrologic Report & Mine Inflows Study
Annual Report Year
1998
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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<br />The following information was used to make calculations for this Year: <br />' -Estimated equilibrium moisture of 4.5% <br />-Measured raw coal tons of 588,620 at Roadside North with an estimated <br />' 8% moisture. <br />-Measured coal tons sold of 471,021 with an estimated moisture of 9.1°~ <br />-Refuse tons of 117,599 with an estimated moisture of 18% <br />' The moisture added during mining calculates out to be 2.83 million gallons and the <br />moisture added during cleaning calculates out to be 4.6 million gallons. <br />' Water was used for as the primary means of dust control on the surface and <br />underground roads during the Year. Magnesium chloride and calcium chloride were <br />used on roads, both surface and underground, to reduce the manpower requirements <br />' for keeping the roads damp. Between the two mines approximately 3600 gallons of <br />water per day, 2 days per week were used. Usage on the surface roads was <br />' approximately 8,000 gallons of water per day, 5 days per week, 75°~ of the Year. <br />Water for the surface roads was taken from an approved point of diversion in the <br />Highline canal. A summary of the estimated consumptive use of water is as follows: <br />Total Gallons/ Gallons/ <br />Source Gallons raw ton ton sold <br />Domestic <br />' Surface Facilities 737,000 1.25 1.56 <br />Preparation Plant 6,178,000 10.5 13.1 <br />Mine <br />' Mining 2,826,000 4.8 6.0 <br />Preparation Plant 3,787,901 6.4 8.0 <br />' Underground Roads 374,400 0.6 0.8 <br />Highline Canal <br />,• Surface Roads 1.560.000 2.7 3.3 <br />TOTAL 15,463,301 26.3 32.8 <br />' ~HR 98 Pages 5-1-99 <br /> <br />
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