2010-05-07_PERMIT FILE - C2009087 ‎(59)‎

• Permit No: C2009087
• IBM Index Class Name: Permit File
• Doc Date: 5/7/2010
• Doc Name: Post Mine Ditch and Culvert Designs pgs TOC to 155
• Section_Exhibit Name: Exhibit 2.05.3-E2 Appendix 2.05.3-E2.H-1
• Media Type: D
• Archive: No

Vatershed Area:
13.8
:urve Number:
WATERSHED TYPE
Reclaim >3 years
Total
SEDCAD 4
WATERSHED ID
Structure 12 - SWS1
Channel PM- 41-ower
•
•
Peabody Sage Creek Mine
PM -1 System Channel Designs
HYDROLOGIC INPUT PARAMETERS
GROUND COVER I SOIL GROUP
Good ( >70 %) B
CURVE NUMBER
NUMBER acres
62 13.77
13.8
M.
Peabody Sage Creek Mine curve number (CN) values are based on CN values previously approved by CORMS for the
Seneca II Mine, Permit C -80 -003. The CN values are presented in the Seneca II Mine PAP in Appendix 7 -12, Postiming
Drainage Control. Values are adapted from Urban Hydrology for Small Watersheds,
Conservation Service, 1986. Technical Release No. 55 (TR -55), Soil
2.05.3 -E2. H.35
Prepared 05/09