2019-02-01_PERMIT FILE - C1981019 ‎(3)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 2/1/2019
• Section_Exhibit Name: Exhibit 07 Item 18 Small Area Exemption Demonstration - Gulch A Watershed
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Subwatershed Hydrology Detail;
Subwatershed Sedimentology Detail;
Peak
Time of
Peak
Runoff
Stru SWS
SWS Area
Musk K Curve
Conc Musk X LIHS
Discharge
Volume
# #
(ac)
(hrs) Number
(hrs)
i (cfs)
(ac -ft)
#1 1
2.900
0.159 0.000 0.000 80.000 F
1.16
0.104
#1 1 0.300 350.00 1.50
2.900
17.55
1.16
0.104
Subwatershed Sedimentology Detail;
Subwatershed Time of Concentration Details:
Stru SWS Vert. Dist. Horiz. Dist. Velocity
# # Land Flow Condition Slope (%) (ft) (ft) (fps) Time (hrs)
#1 1 2. Minimum tillage cultivation 1.50 5.25 350.00 0.610 0.159
#1 1 Time of Concentration: 0.159
Filename: Grass Filter Gulch A.sc4 Printed 10-24-2018
Peak
Peak
Stru SWS
Sediment Sediment
Settleable
24VW
# Soil K L (ft) S(%)
C P PS # Conc.
Conc
#
(tons)
(MI/1)
(mg/1)
(ml/1)
#1 1 0.300 350.00 1.50
1.0000 0.9000 1 2.3 32,801
17.55
8.55
2.3 32,801
17.55
8.55
Subwatershed Time of Concentration Details:
Stru SWS Vert. Dist. Horiz. Dist. Velocity
# # Land Flow Condition Slope (%) (ft) (ft) (fps) Time (hrs)
#1 1 2. Minimum tillage cultivation 1.50 5.25 350.00 0.610 0.159
#1 1 Time of Concentration: 0.159
Filename: Grass Filter Gulch A.sc4 Printed 10-24-2018