2013-08-08_HYDROLOGY - M1977306

• Permit No: M1977306
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/8/2013
• Doc Name: RESPONSE TO GENERAL STORMWATER COMMENTS
• From: OPERATOR
• To: DRMS
• Email Name: DMC
• Email Name: TC1
• Media Type: D
• Archive: No

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SECTION 30 -1 V W.S. 5.41 440 FPS (N" .035))
ONSITE BASIN 30 UPSTREAM SLOPE
S = 0.1430 (14.307)
Qm - 2.38 CFS
THIS SECTION TO BE REGRADED AND ARMORED
SEE SECTION 30P (PROPOSED)
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SECTION 30 -1 A
ONSITE BASIN 30
6435
PIWIC
INSTALL DITCH AS DIRECTED ON SHEET 3 FOR RUNOFF DELIVERY
TO POND FROM BOTH SIDES OF WASTE ROCK PILE. GRADE TO
DRAIN TO POND. MINIMUM SLOPE = 1.00% MAXIMUM SLOPE =
1- (MIN.)
POND COLLECTION CHANNEL
6425 SECTION 30 -2, 30 -2A, 30 -2B, 30 -2C
N TS
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6415
40
W.S. = 6423.24 (N =0.045)
V = 6.63 FPS (N =0.035)
UPSTREAM SLOPE
S = 0.2974 (29.74X)
Qmo - 2.38 CFS
ARMORING RERQUIRED THIS SECTION
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REVI!M & RLC DATE 81112113 DRNM BY RLC DATE 9/22/2012 T 2350 G Road DRAINAGE CHANNEL CROSS - SECTIONS
v R m —DATE D,TE 922 2°'2 O Connor Des4qn group, IncnC G`and ��"' Co. 8150' DRAINAGE DESIGN PLAN
REVISION ®— DATE OMM BY PMO DATE 9/2V2012 • Phone: ax: ( [phone]
Fax:(s7o)2a1a852 COTTER CORPORATION MINE JD-9 I'll 9 DF10