2007-06-01_PERMIT FILE - C1981019 ‎(3)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 6/1/2007
• Doc Name: Attachment 1 to Attachment 12
• Section_Exhibit Name: Exhibit 07 West Pit Pond 008A
• Media Type: D
• Archive: No

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SEDCALI 4 for Windows
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13
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Pond Inputs;
Initial P~aot Eiev: 6,830.00
initial Pool: 5.4$ ac-ft
*Sediment Storage: 0.00 ac ft
Dead Space: 20.00 9da
*No sediment capacr'ty detlned
Emer_ envy Spillway
Spillway Elev ~ length Left Right Bottom
(ft7 Sideslope 5idestope Nfttith (ft)
6,s3$.40 21.00 1.50:1 Y.50:1 24.00
Perforated Riser
Riser Riser Height
Diameter Barrel Barrel Barrel Slb~
Diameter Number of
Manning s n Spillway Elev Holes per
(ink ~~~ ~~~ Ctt~ t°~)
(in) E-ev
i$.00 11.64 18,40 173,40 $.70 4.4254 6,837.40 3
•
Pond Results:
Peak Etevatlon: 6,$33.58
H'greph Detention lime: 12.10 hrs
Pond Model: CSrRS
Dewater Time: 1.32 days
-- Trap Efficiency: 80.52 °lo
Dewateriru,~ time is ealcuCated from peak stage #r~ lowest sp1llway
Elevation-Capacit~,Discharge Table

Elevation Area

facl Capacity

(ac ft) Discharge CJeovater

(cfsj mom)
6,821.t~ 0.131 0.000 0.000 Top of Sed. Storage
`----
6,$21.50 _.._ _.._..._.....0.275 0.094 0.000
6,$22.00 0.474 0.2$4 0.000
...- -
6,$22.50 0.499 0.527 ...0.404
6,823.00 0.525 4.783. .. 0.040
6,$23.50 0,545 1.051 0.000
6,$24.00 4.564 1.328 0.040
6,824.50 0.584 1,615 0.040
6,$25.00 4.604 1.912 0.440
6,825.40 0.624 2.157 0.000
•
Filename:. Westpit 25yr 24hr.sc4 Printed 01-27-2006
Exh. 7-WP-51 Revision Date: 2/1/06
Revision No.: TR-63