2009-08-20_PERMIT FILE - C1980001A

• Permit No: C1980001A
• IBM Index Class Name: Permit File
• Doc Date: 8/20/2009
• Section_Exhibit Name: 4.6 Hydrologic Balance Control Plan
• Media Type: D
• Archive: Yes

TABLE 4.6-28 (continued)
C~
Watershed Shape Factor
The hydraulic length of our watershed area is measured to be 13,670 ft.
Equivalent drainage area = k = 2090 0.6
o = 209 OI6
a = (13,670) I
209 ~.6
a 1,061.79 oc.
Actual actual drainage area
Discharge =equivalent discharge (equivalent drainage area)'
According to 961.01 oc.
rainfall ~ 41.1 cfs (1,061.79 oc. )
Runoff 39.9 cfs.
Ground W oter 1.6131 ac-ft 43,560 ft I day I hr I min
Discharge = I day x I oc. x 24 hr X 60 min x 60 sec 0.8 cfs.
Actual Peak Inflow is the nddition of the rainfall runoff and ground water = 39.9
cfs + 0.8 cfs = 40.7 cfs.
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Revised 7-81 4.6-90