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2012-01-30_REPORT - C1981018 (2)
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2012-01-30_REPORT - C1981018 (2)
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Last modified
8/24/2016 4:48:06 PM
Creation date
1/31/2012 10:29:07 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981018
IBM Index Class Name
REPORT
Doc Date
1/30/2012
Doc Name
27th Annual Hydrology Report (October 2010 Through September 2011)
From
Blue Mountain Energy
To
DRMS
Annual Report Year
2011
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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WATER IN <br />GALLONS/YR <br />GALLONS /MIN <br />Production Equipment 39,580,800 75.31 <br />Ventilation Humidity 8,690,028 16.53 <br />Underground Storage of Thickener Water 3,500,000 6.66 <br />Incidental (pipe Teaks, road watering, wash down) 3,958,080 7.53 <br />TOTAL 55,728,908 106.03 <br />WATER OUT <br />Coal Surface Moisture 25,216,125 47.98 <br />Ventilation Humidity 18,123,777 34.48 <br />Pumped Out 0 0 <br />TOTAL 43,339,901 82.46 <br />Water Left Underground 12,389,901 23.57 <br />Water pumped from B seam to D seam 19,187,711 36.5 <br />TABLE 2 -2 <br />MINE WATER BALANCE <br />Thickener water transferred underground for storage was estimated at 3,500,000 gallons <br />during the reporting period. This number is based on operational knowledge of the tons <br />washed and other factors such as the type of clays encountered, processing equipment <br />efficiencies, etc. <br />The smallest quantity of water entering the mine is the incidental category. This category <br />includes leakage from water lines, dust control watering in the haulage entries, and <br />washdown water used in the slope and other locations. It has been assumed that 10% of <br />the water used for production equipment will be used under this category. <br />Outgoing Water As coal is mined, water is added by dust control sprays on the <br />continuous miners, the longwall shearer and at transfer points along the conveyor belt <br />system. This water is then carried out of the mine as surface moisture on the raw coal. <br />This added coal surface moisture represents a 4% increase in the raw coal moisture <br />content. The raw coal tonnage produced during this reporting period was 2,631,933 tons. <br />Water leaving the mine as ventilation humidity represents a large quantity in the water <br />balance. The temperature of the exhaust ventilation air is almost constant, at 60 F. <br />9 <br />
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