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HYDRO20056
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Last modified
8/24/2016 8:41:28 PM
Creation date
11/20/2007 1:20:36 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1984065
IBM Index Class Name
Hydrology
Doc Date
8/21/1990
Doc Name
REPORT TO NEW CASTLE ENERGY CORP ON BACKFILL DISPOSAL OF COAL AND NON-COAL WASTE IN THE COAL RIDGE 1
Permit Index Doc Type
PROF POND CERTIFICATIONS
Media Type
D
Archive
No
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1 <br /> <br /> <br /> <br />lJ <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br />1 <br /> <br />1 <br />1 <br /> <br /> <br />3.0 THE IINDERGROVND DIBYOBAL 8Y8TEM <br />Mined materials that are not shipped as part of the product will be <br />disposed of in the first rooms of the mined system that are <br />excavated. The disposal rooms will be completed prior to disposal, <br />and will be physically separated from all other mining areas by a <br />crown and barrier pillar system. Disposal will utilize a slurry <br />transport system, with the disposal being conducted under submarine <br />conditions. This section of the report describes the disposal <br />concept in detail. <br />3.1 THE DISPOSAL AREA <br />3.1.1 The mined void <br />The disposal area is the first area mined, and is located at the <br />lowest level of the current panel, and on the extreme west end of <br />the mine property. The location is indicated in Figure 3. The <br />rooms in which disposal will take place are approximately 1150 and <br />750 feet long, and are expected to be about 50 feet wide and 75 <br />feet high. The total disposal volume is 250,000 cubic yards, or <br />about 300,000 tons of mined material. At the currently projected <br />peak rate of production of waste material, this provides volume for <br />in excess of 5 years of mining, which provides a considerable <br />factor of safety against running out of volume for stowing this <br />material. <br />Adrian Brown Consultants -31- 1145/900820 <br />1 <br />
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