2013-10-08_REVISION - M2012032 ‎(13)‎

• Permit No: M2012032
• IBM Index Class Name: REVISION
• Doc Date: 10/8/2013
• Doc Name: Second Adequacy Response TR01
• From: Greg Lewicki and Associates
• To: DRMS
• Type & Sequence: TR1
• Email Name: RCO
• Media Type: D
• Archive: No

SWB -7 25YR Runoff.txt
Runoff Curve Number and Runoff Mon Sep 16 11:43:43 2013
Project: SWB -7 By: B Langenfeld Date:
09/16/13
Location: Revenue Mine Checked: Date:
Developed
1. Runoff Curve Number (CN)
Cover description
CN Soil Group
Mined Land, Disturbed (Poor)
87 C
Open Space -Poor ( <509/6 grass)
68 A
Herbaceous mixture (Fair)
71 B
CN (weighted): 75.4
Total Area: 9.200 Acre
2. Runoff
Return Period:
25 -Year
Rainfall, P:
2.80
in
Runoff, Q:
0.8536
in
Runoff volume:
0.6544
Acre -Ft
Page 1
Area(Acre)
3.343
4.265
1.592