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2016-01-28_REPORT - C1981018
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2016-01-28_REPORT - C1981018
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Last modified
8/24/2016 6:15:24 PM
Creation date
1/28/2016 10:15:24 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981018
IBM Index Class Name
Report
Doc Date
1/28/2016
Doc Name
October 2014 Thru September 2015 Annual Hydrology Report
From
Blue Mountain Energy
To
DRMS
Annual Report Year
2015
Permit Index Doc Type
Hydrology Report
Email Name
CCW
JRS
Media Type
D
Archive
No
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2.2.1.5 Mine Water Balance Table 2-2 shows the water balance for the Deserado Mine. <br />No water was pumped from underground workings between January 1996 and May of <br />2012. Pumping of excess mine water to the surface recommenced in May 2012. <br />During the 1996-1997 period, Deserado Mine started disposing the prep plant thickener <br />water in the mined out area of the D -Seam (the first longwall district). This water would <br />have been otherwise discharged through Pond PP -2. <br />Ingoinq Water The production equipment utilizes water for dust control and cuttings <br />removal in roof bolting. Water used by equipment is based on 314 shifts worked by <br />continuous miner sections and 327 shifts worked by the longwall. The continuous miner <br />sections use 100 gpm and operate about 4 hours per shift (the rest of the time is spent <br />moving, etc.). The longwall equipment uses 200 gpm of water for about 8 hours per shift. <br />The amount of water entering the mine as ventilation intake air humidity is based on <br />monthly mean temperatures from Table II.0-1 on page II.0-5 of the Mining Permit and the <br />yearly mean relative humidity of 56% found on page II.E-1 of the Mining Permit. The <br />absolute humidity, the actual amount of water in the air, is calculated from these data <br />using an average ventilation quantity of 421,308 cubic feet per minute. <br />TABLE 2-2 <br />MINE WATER BALANCE <br />WATER IN <br />GALLONSNR <br />GALLONS/MIN <br />Production Equipment <br />47,328,000 <br />90.05 <br />Ventilation Humidity <br />9,154,505 <br />17.42 <br />Underground Storage of Thickener Water <br />2,160,000 <br />4.11 <br />Incidental (pipe leaks, road watering, wash down) <br />4,732,800 <br />9.00 <br />TOTAL <br />63,375,305 <br />120.58 <br />WATER OUT <br />Coal Surface Moisture <br />24,678,726 <br />46.95 <br />Ventilation Humidity <br />19,092,483 <br />36.33 <br />Pumped Out — B -Seam <br />14,449,464 <br />27.49 <br />Pumped Out — D -Seam <br />21,306,225 <br />40.54 <br />TOTAL <br />79,526,898 <br />151.31 <br />Water Removed From Underground <br />16,151,593 <br />30.73 <br />Water pumped from B seam to D seam <br />0 <br />0 <br />
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