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 2 INTERIM WEST-DIVERSION Type Il 24-hr 900 FULL YEAR Rainfall=2.90"
Prepared by Greg Lewicki & Associates Page 8
HydroCAD® 8.00 s/n 004412 0 2006 HydroCAD Software Solutions LLC 4/17/2007
Pond WP-1: WHIRLWIND PORTAL CULVERT 1
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[61] Hint: Submerged 27% of Reach B2 bottom
Inflow Area = 12.800 ac, Inflow Depth = 0.80" for 100 FULL YEAR event
Inflow = 13.61 cfs @ 12.07 hrs, Volume= 0.850 of
Outflow = 13.61 cfs @ 12.07 hrs, Volume= 0.850 af, Atten= 0%, Lag= 0.0 min
Primary = 13.61 cfs @ 12.07 hrs, Volume= 0.850 of
Routing by Stor-Ind method, Time Span= 2.00-30.00 hrs, dt= 0.05 hrs
Peak Elev= 7,085.73'@ 12.07 hrs
Flood Elev= 7,087.50'
Device Routing Invert Outlet Devices
#1 Primary 7,083.50' 24.0" x 40.0' long Culvert CMP, square edge headwall, Ke= 0.500
Outlet Invert= 7,083.00' S= 0.01257' Cc= 0.900
n= 0.025 Corrugated metal
Primary OutFlow Max=13.24 cfs @ 12.07 hrs HW=7,085.69' (Free Discharge)
t-1=Culvert (Barrel Controls 13.24 cfs @ 4.80 fps)
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Pond WP-1: WHIRLWIND PORTAL CULVERT 1
Hydrograph
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0
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Inflow Area=12.800 ac
Inflow=13.61 cfs
Primary=13.61 cfs
Peak Elev=7,085.73'
24.0" x 40.0' Culvert
Time (hours)
- Inflow
Primary •