SW6230705_Design Calculations_20230831 (15)

SERENTIY 3,4 & 5
SCM 13
Drawdown Time
Temporary storage volume= 46,440 cf
Orifice#ldiameter= 3 in
# 1
Area of orifice= 0.0491 sf
Orifice Coefficient(Cd) = 0.60
Orifice elevation= 307.50 ft
Water elevation= 309.42 ft
Driving head(H)= 0.64 ft
Discharge(Q)= 0.188952 cfs
Drawdown time= 245774 s
68.3 hr
2_8 days