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1988-04-11_PERMIT FILE - C1981008A (20)
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1988-04-11_PERMIT FILE - C1981008A (20)
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Last modified
1/5/2021 12:04:57 PM
Creation date
4/19/2012 7:58:42 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008A
IBM Index Class Name
PERMIT FILE
Doc Date
4/11/1988
Doc Name
Facilities
Section_Exhibit Name
Tab 13
Media Type
D
Archive
Yes
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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also be used to stabilize the area. <br /> When sedimentation ponds are removed, the affected land will be regraded and revegetated <br /> pursuant to the CMLRD's regulations, Section 4.05.17 and the approved Peabody Reclamation <br /> Plan. <br /> Design Methodology. The precipitation runoff (peak flow and volume) is estimated using <br /> the Soil Conservation Service (SCS) triangular hydrograph techniques as described in <br /> Design of Small Dams (U.S. Dept. of Interior, 1977). Computations necessary for this <br /> runoff estimating technique have been computerized by various individuals and agencies. <br /> SEDIMOT II (see Attachment A), was developed by Research Specialist Bruce N. Wilson, <br /> Professor Billy J. Barfield, and Assistant Professor Ian D. Moore at the Department of <br /> Agricultural Engineering, University of Kentucky, Lexington, Kentucky. This program is <br /> used to estimate runoff peak flow and volume which are necessary for the uesian of <br /> sediment ponds. A copy of the computer program's input and output file information has <br /> been included in each sedimentation pond desian report. <br /> The input consists of precipitation amount (inches), watershed area (acres), `ime of <br /> concentration (hours), runoff curve number (CN), representative particle-size <br /> distributions of the soil types in the watershed, sedimentology information, spillway <br /> information, etc. <br /> The precipitation amounts for the Nucla Mine for the design storm durations were obtained <br /> from the NOAA Precipitation Frequency Atlas Precipitation- Frequency Atlas of the Western <br /> 13-6b Revised C9/26/90 <br />
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