2009-05-19_REVISION - M1981021

• Permit No: M1981021
• IBM Index Class Name: REVISION
• Doc Date: 5/19/2009
• Doc Name: EPP ‎(AM-01)‎ Attachment L:Air Pollution; Att. M: SPCC; Att. N: GW Characterization ‎(part 8)‎
• From: Denison Mines
• To: DRMS
• Type & Sequence: AM1
• Email Name: RCO
• Media Type: D
• Archive: No

•
Volume of Containment Structure
Berm Type Rectangular, Tapered
Height (ft) 1.10
Width 1-bottom (fl) 7.00
Width 2-top (ft) 11.60
Length 1-bottom (ft) 15.00
Length 2-top (fl) 18.70
•
Containment Volume (bbl) 30.88
Secondary Containment (Berm) Volume Calculations
West Sunday Mine - Berm C
Additional Containment Volume from Below-Grade Sump
Sump Shape (none)
Length (ft)
Width (ft)
Depth (fl)
Calculated Volume (bbl) 0
Additional Containment Volume - Manual Input
Enter Volume (bbl) 0.00
Describe Additional Vol:
Freeboard Standard: 110x/ of Largest Tank Volume
Enter 0 in cell at right 0
Volume Displaced (bbl) 0.00
Largest Tank Volume Calculations
Tank ID TK-3
Tank Contents Diesel fuel
Tank Shape Cylinder
Tank Orientation Horizontal
Diameter (fl) 4.00
Length (111) 11.00
Calculated Volume (bbl) 24.62 1034 .0 gallons
Labeled Volume (bbl)' *I container not labeled use delete key to clear the cell.
'Note: When available, the labeled container volume is used in the calculations.
Volume Displacement from Tanks and Other Obstructions
Diameter Length Width Volume of Secondary
Height ifRect. Weld to Weld if Rea. Tanta Volume Containment Displaced

Tank ID
Tank Contents
Tank Shape
Tank Orientation Tank Bullet Tank Only
(fl) (fl) (fl) (bbl)
(bbl)
(none) (none)
(none) (none)
(none) (none)
(none) (none)
(none) (none)
(none) (none)
(none) (none)
(none) (none)
Enter displacement from other obstructions, in barrels (I fl'= 0.178 barrels): 0
Describe Obstructions:
Summary
Containment Capacity (bbl) 31
Volume Displaced by Rainfall (bbl) 0
Volume Displaced by Tanks & Obstructions (bbl) 0
Berm Volume Less Tank & Rainfall Displacement (bbl) 31
Largest Tank Capacity (bbl) 25
% of Largest Tank Volume Contained 125% Result must be 110% or greater to allorvjor adequate precipitation.