2012-07-10_PERMIT FILE - C1981041A ‎(6)‎

• Permit No: C1981041A
• IBM Index Class Name: Permit File
• Doc Date: 7/10/2012
• Doc Name: A-2 pg CRDA1-1 to RSS-53
• Section_Exhibit Name: Tab 13 Appendix 13-2 Part 2
• Media Type: D
• Archive: Yes

CAMEO REFUSE DISPOSAL AREA
PONO N 6
Area: 32.4 acres
r Hydrologic Soil Group: D
Ground Cover: 0-5%
' Curve No.: 88
Precipitation Event: 10-year, 24-hour
Precipitation: 1.4 inches
Direct Runoff: 0.55 inches
Calculations:
Volume of Runoff = (0.55)(32.4)/12 = 1.485 acre-feet
Sediment Storage Volume = 2 year
Sediment Oepth = (.067)(3Z.4)(43,560)/38,500 = 2.46 feet
~ Pond Capacity Required = 1.485 + 2.4b = 3.95 acre-feet (172,062 ft3)
+ • Pond Design:
Average Area: 38,500 ft2
Depth: 7.0 ft
Freeboard: 1.8 ft
Height of Spillway = 5.2 ft
Spillway Design:
Precipitation Event: 25-year, 24-hour event
Precipitation: 1.8 inches
Direct Runoff: 0.86 inches
Q=qAR
Q = (780)(.05)(.86) = 33.5 cfs
A 36" corrugated metal pipe @ 2 % slope will carry 49.06 cfs.
Q = (.1414)(347) = 49.06 cfs
LI
CRDAI - l (NeW 10/81)