2020-03-31_PERMIT FILE - C1981019A ‎(13)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 3/31/2020
• Doc Name: Prospect Sedimentation Pond
• Type & Sequence: TR136
• Section_Exhibit Name: Exhibit 07 Item 20 Part PP
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
(`nnvrinh}1 QQR-9M(1 Parnola I Crhwah
22
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
100.00 20.00 2.00:1 2.00:1 20.00
Pond Results:
Peak Elevation: 100.06 ft
H'graph Detention Time: 9.79 hrs
Pond Model: CSTRS
Dewater Time: 0.12 days
Trap Efficiency: 100.00%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
90.00 0.050 0.000 0.000 Top of Sed. Storage
90.01 0.050 0.001 0.000
90.05 0.050 0.003 0.000
90.50 0.060 0.027 0.000
91.00 0.071 0.060 0.000
91.50 0.084 0.098 0.000
92.00 0.097 0.144 0.000
92.50 0.112 0.196 0.000
93.00 0.127 0.255 0.000
93.50 0.144 0.323 0.000
94.00 0.162 0.400 0.000
94.50 0.180 0.485 0.000
95.00 0.200 0.580 0.000
95.50 0.215 0.684 0.000
96.00 0.231 0.796 0.000
96.50 0.248 0.916 0.000
97.00 0.265 1.044 0.000
97.50 0.283 1.181 0.000
98.00 0.301 1.327 0.000
98.50 0.320 1.482 0.000
99.00 0.339 1.647 0.000
99.50 0.359 1.822 0.000
100.00 0.380 2.006 0.000 Spillway#1
100.06 0.377 2.028 0.413 2.85 Peak Stage
10u.A 0.391 2.199 3.6z5
101.00 0.403 2.398 48.400
Filename: Prospect Pond 10 Yr 24 Hr Storm Event.sc4 Printed 01-06-2020