SW6230705_Design Calculations_20230831 (38)

SERENTIY 3,4 & 5
SCM 16
Drawdown Time
Temporary storage volume= 25,856 cf
Orifice#ldiameter= 2.7 in
# 1
Area of orifice= 0.0398 sf
Orifice Coefficient(Cd) = 0.60
Orifice elevation= 279.50 ft
Water elevation= 281.01 ft
Driving head(H)= 0.50 ft
Discharge(Q)= 0.135898 cfs
Drawdown time= 190263 s
52.9 hr
2_2 days