SW6200404_Attached Image 3_20230614

GSB Wet Pond - Volume Forebay
Project: SOFGSBTEMF
Basin Description: Wet Pond - Forebay
Contour Contour Depth Incremental Cumulative Incremental Cumulative
Elevation Area (ft) Volume Volume Volume Volume
(sq. it) Avg. End Avg. End Conic Conic
(cu. ft) (cu. ft) (cu. ft) (cu. ft)
240 4,654.00 N/A N/A 0 N/A 0
241 5,453.00 1 5054 5054 5048 5048
242 6,308.00 1 5881 10934 5875 10924
243 7,219.00 1 6764 17698 6758 17682
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1 21 Elevation of the main pool bottom{top of sediment removal) (fmsp 237.00
22 Elevation of the bottom of the vegetated shelf(foul) 243.00
23 Elevation of the permanent pool (fmsp 242.50
24 Elevation of the top of the vegetated shelf (finsl) 244.00
25 Elevation of the temporary pool (fms0 245.50
26 Surface area of the main permanent pool (square feet) 24186:1
27 Volume of the main permanent pool (cubic feet) 118621 cf
1 28 Average depth of the main pool (feet) 6.00 ft
29 Average depth equation used Equation 2
30 If using equation 3, main pool perimeter (feet)
31 If using equation 3, vndth of submerged veg. shelf (feel)
32 Volume of the forebay (cubic feet) 18930 cf
33 Is this 15-20% of the volume in the main pool? Yes
34 Clear ut depth for forebay (inehes) 12 in
1 35 Design volume of SCM (ce ft) 100831 cf
36 Is the outlet an orifice or a weir? Orifice
37 If orifice, orifice diameter (inches) 6 in
38 If vreir, weir height (inches)
39 If weir, weir length (inches)
40 Drawdown time for the temporary pool (days) 2.9