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PERMFILE69598
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PERMFILE69598
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Entry Properties
Last modified
8/24/2016 11:18:28 PM
Creation date
11/20/2007 10:58:10 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041A
IBM Index Class Name
Permit File
Doc Date
5/13/2002
Section_Exhibit Name
Tab 19 Probable Hydrologic Consequences
Media Type
D
Archive
Yes
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<br />Roadside Refuse Pile Percolation <br />This is a technical assessment to determine if the quality of the Colorado River would <br />be significantly affected provided all of the precipitation that falls on the Roadside Mine <br />coal refuse pile percolated through the pile directly into the Colorado River. <br />The following assumptions were made to obtain a conservatively high estimate of the <br />quantity of water and the total suspended solids and other constituents passing from <br />the refuse pile, through the alluvium, and into the river. <br />ASSUMPTIONS: <br />- All precipitation percolates through the coal refuse pile, therefore, runoff and <br />evaporation are ignored. <br />• <br />- The quality of the water that percolates through the coal refuse pile will be the <br />same as the reclaimed water from the slurry disposal project. (Reference letter <br />to Mr. Fred Banta from Tracy W. Gunn, dated January 22, 1980.) <br />- The coal refuse pile acts as an ideal buffer, therefore, the percolation of water <br />is constant throughout the year. <br />- The fact that the coal refuse pile is compacted to limit and nearly stop all <br />percolation will be ignored. <br />- The analysis and recommendations for conformity of reject pile, Appendix 13-4, <br />Tab Section 13. <br />• 19-11 (New 3/1/96) <br />
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