2008-07-11_PERMIT FILE - M2007044 ‎(2)‎

• Permit No: M2007044
• IBM Index Class Name: PERMIT FILE
• Doc Date: 7/11/2008
• Doc Name: Appendix A and B ‎(volume 1)‎
• From: Energy Fuels Resources Corp.
• To: DRMS
• Email Name: GRM
• Media Type: D
• Archive: No

PHASE 1 INITIAL WEST DIVERSION Type I/ 24-hr Rainfall=2.90"
Prepared by Greg Lewicki & Associates Page 4
HydroCAD®8 00 s/n 004412 © 2006 HydroCAD Software Solutions LLC 4/17/2007
Subcatchment A: BASIN A
Runoff = 12.30 cfs @ 12.05 hrs, Volume= 0.735 af, Depth= 0.95"
Runoff by SCS TR-20 method, UH=SCS, Time Span= 2.00-30.00 hrs, dt= 0.05 hrs
Type II 24-hr Rainfall=2.90"
Area (ac) CN Description
9.300 76 Pinyon/juniper range Good HSG D
9.300 Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
11.7 1,774 0.2334 2.52 Lag/CN Method,
Subcatchment A: BASIN A
Hydrograph
13
12
11
10
9
7
0
U. 6
5
4
3
2
1
Runoff=12.30 cfs
Type II 24-hr
Rainfall=2.90"
Runoff Area=9.300 ac
Runoff Volume=0.735 of
Runoff Depth=0.95"
Flow Length=1,774'
Slope=0.2334 '!'
Tc=11.7 min
CN=76
t _ .. _ . _ Time (hours) -
Runoff