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2009-11-30_PERMIT FILE - C1981038A (2)
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2009-11-30_PERMIT FILE - C1981038A (2)
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Entry Properties
Last modified
8/24/2016 3:57:16 PM
Creation date
12/29/2009 1:22:12 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981038A
IBM Index Class Name
Permit File
Doc Date
11/30/2009
Doc Name
Bad had missting page
Section_Exhibit Name
Paonia Loadout 2.05 Operation and Reclamation Plans
Media Type
D
Archive
Yes
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§2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING <br />ACTIVITIES --MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION <br />PLANS. <br />(B) Descriptions and maps are presented in Exhibit 8 <br />Protection of the Hydrologic Balance. A sediment <br />pond is provided for mine drainage from the disturbed <br />areas associated with the conveyors, silos and unit <br />train loadout. Details of this pond are found in Exhibit <br />8 and on Map 11. This pond is located to the north <br />and west of the train loadout building. It is located in <br />the northwest corner of SW~/aSE~/a of Section 29, <br />T.13.S, R.91.W., 6'h P.M. <br />The sedimentation pond dam was constructed using <br />conventional steel bin wall construction. The bin walls <br />are backfilled and utilize a reinforced concrete spillway <br />and spillway apron. Plans, Specifications and as <br />constructed surveys are contained in Exhibit 8 <br />Protection of the Hydrologic Balance. See Map 11. <br />The dam was constructed from April, 1979 through <br />June, 1979. <br />The storage and load-out sedimentation dam is an <br />existing structure and meets the requirements of <br />4.05.2., .5, .6, .7, and .17. It is located immediately <br />downstream of all storage and load-out facilities and <br />over the Farmer's Ditch, an irrigation canal that has <br />been piped beneath the load-out area. <br />The storage capacity of this pond is approximately 1.8 <br />acre-feet. Approximately 16 disturbed acres and no <br />undisturbed acres drain into the pond. Taking into <br />consideration the re-vegetation measures which will <br />help reduce sediment, this would require 16.0 acres x <br />0.035 acre-feeUacre = 0.56 acre-feet for sediment <br />i <br />storage capacity. The 10-year, 24-hour precipitation <br />event would generate 16.0 acres x 0.04 acre-feeUacre <br />= 0.64 acre feet. The total required sedimentation <br />TR-020 <br />2.os - 1 s <br />3/01 <br />
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