PERMFILE109832

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 70 Appendix L Attachment A-3, D-1 & D-3
• Media Type: D
• Archive: No

•
File: J:\OOJOBS\003-2166\RPE-R3'X 7/22/00, 8:25:48PM
Civil Software Design -- SEDCAD+ Version 3.1
Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved.
Company Name: GOLDER ASSOCIATES
Filename: C:\SEDCAD\2166\RPE-R3' User: WDP (modified by TAC)
Date: 07-22-2000 Time: 20:23:16
Refuse Pile Expansion Sediment Control Pond
Storm: 1.90 inches, 10 year-24 hour, SCS Type II
Hydrograph Convolution Interval: 0.1 hr
-----------------------------------------
-----------------------------------------
NON-POND STRUCTURE INPUT/OUTPUT TABLE
_________________________________________
_________________________________________
J1, B1, S1
DRPE-1
Drainage Area from J1, B1, S1, SWS(s)1: 6.6 acres
Total Contributing Drainage Area: 6.6 acres
MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL
Triangular Earthen Channel
Limiting Variable: Velocity = 5.500 fps
Sediment-laden Water
•
Design Bottom Manning's
Discharge Width ZLeft ZRight Slope n
(cfs) (f t) (~)
6.13 2.5:1 2.5:1 3.5 0.030
Top Hydraulic Froude
_ Depth Velocity Width Radius Number
(ft) (fps) (ft)
---- ---- ---------- -- ----- - - -- ------- -- - ----
------------- ---- ----- ----------------
0.73 4.54 3.7 0.341 1.32
w/ Freeboard: 0.73 3.7
Runoff Peak Peak Sediment Peak Settleable
Volume Discharge Sediment Concentration Concentration 24VW 24AA
(ac-f t) (cfs) (tons) (mg/1) (ml/ll (ml/1) (ml/1)
INjOUT 0.48 6.13 37.7 103966 67.62 36.20 8.76
•+++~..>~.+x<+,+ssw~e••~~r~e~~e~:t~a+::~~~~.:.x.efr+~.xxe~.t~~~:rx.~~e~te~.~~..~a~:++
J1, B1, 52
DRPE-2
i•
Drainage Area from J1, B1, S2, SWS (s)1: 6.9 acres
Total Contributing Drainage Area: 13.5 acres
Page: