PERMFILE43021

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: DRAINAGE AND SEDIMENT CONTROL CALCULATIONS FOR HUBBARD CANYON VENTILATION FACILITIES
• Section_Exhibit Name: Exhibit 2.05-E3 SECTION 4
• Media Type: D
• Archive: No

~Up,]000~~or n, „~Lcinn Arlan iarv
Hubbard Canyon Ventilation Facilities No. 2-
Somerset Coal Mine - Ref, Dwa. No. E3-3364
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4.4 0 1.3 0.1~~ ~ 7.394 ii.668 - 0.634 T 9 69 ~ 11.17 ~ 82.6
Re wired** Sae Culvert Ade uac - Shee Corral Gulcn 64.5
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2.0 ! 0 .0.7 Ol i 0.980 ~ 3.130 0.313 i 31.50 1.99 1.95
Re uired* Storm Runoff
-- Calculations - Fill Slo es Below Yard Area): _
1.77
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* Design Storm - 25 Year 24 Hour Storm
**Design Storm - 100 Year 24 Hour Storm