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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
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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 />' identified any such partings, but they may be encountered during <br />' development. <br />' 2.3.2 Method of segregation <br />' The ash that is inherent in the coal seam will be shipped with the <br />coal. NCEC does not propose to wash the coal to remove ash, so <br />' there will be no segregation by this method. <br />In general, parting material cannot be segregated during the mining <br />process, as they are small, and the hydraulic mining method is not <br />conducive to selective mining of the seam. Ash partings may be <br />segregated from the coal to be shipped in the surface plant if the <br />concentration of ash exceeds shipping requirements when blended <br />with run-of-mine coal. The method of segregation will be selective <br />delivery of high ash coal to the disposal stockpile, based on <br />' visual identification by the surface plant operator. It is <br />expected that the parting materials will segregate to some extent <br />in the plant screening system, and this factor will be used to <br />increase the concentration of ash materials relative to coal in the <br />waste materials should a parting be encountered. The resulting <br />material is expected to contain no more than 25$ coal, and the <br />average is expected to be considerably less. <br /> <br />2.3.3 Expected Quantity of material <br />' The quantity of ash produced is not expected to be large. For the <br />purposes of sizing the disposal facility, it is presumed that the <br />ash in partings that could be segregated might average 2$ of the <br />' coal mined. Based on an annual production of 1,000,000 tons the <br />maximum production of disposal material from this source would be <br />' 20,000 tons. <br />' Adriaa Brown Consultants -8- 1145/900820 <br />1 <br />
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