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2010-10-07_PERMIT FILE - C1994082
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2010-10-07_PERMIT FILE - C1994082
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Last modified
8/24/2016 4:24:50 PM
Creation date
12/29/2010 9:41:25 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1994082
IBM Index Class Name
Permit File
Doc Date
10/7/2010
Doc Name
Post Mining Channels SEDCAD Results/Channel YPM-1 to YPM-8
Section_Exhibit Name
Tab 13 Attachment 13-12 Appendix 13-12.3
Media Type
D
Archive
No
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• / <br />Yoast Mine <br />Postmine Channel Design <br />HYDROLOGIC INPUT PARAMETERS <br /> SEDCAD 4 <br /> Channel YPM-1-1 <br /> Watershed ID -Structure 1 - SWS1 <br />LVatershed Area: 54.2 <br />Curve Number: <br /> HYDROLOGIC CURVE AREA <br />WATERSHED TYPE VEGETATION COVER SOIL GROUP NUMBER (acres) <br />Reclaimed Far (3G°6 - 70%) B 71 51.1 <br />Aspen/Mountain Shrub Goad (>70%) C 41 2.4 <br />ush <br />b <br />S Good (>70%) C 47 0.7 <br />r <br />age <br />Total 54.2 <br /> CURVE NUMBER 69 <br />Vegetation cover conditions presented in Tab 10, Vegetation, Attachment 10-1, 1990/1992 Vegetation <br />Baseline Report Yoast Study Area (ESCO Associates, 1993). Approved Yoast Mine curve numbers are <br />presented in Attachment 13-12, Postmining Drainage and Sediment Control, Table 13-12.1. Values were <br />adapted from Urban Hydrology for Small Watersheds, Technical Release No. 55, Soil Conservation <br />Service, 1986. <br />• <br />• <br />TR-37 13-12.3-16 Revised 02/08 <br />
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