SW6211001_Design Calculations (Drawdown, Pond 2)_20220128

South Pointe at Wayside Pond 2
Drawdown Time
Temporary storage volume = 23,987 cf
Orifice #Idiameter= 2 in
# 1
Area of orifice = 0.0218 sf
Orifice #2 diameter = 0 in
# 0
Area of orifice = 0.0000 sf
Orifice Coefficient (Cd) = 0.60
Orifice elevation-- 251.70 ft
Water elevation--- 253.07 ft
Driving head (H) = 0.46 ft
Discharge (Q) = 0.0710 cfs
Drawdown time = 337861 s
93.9 hr
3_9 days
927-POND 2 dawdown 100-yr retention.xlsx Printed 1/28/2022