SW6230705_Design Calculations_20230831 (32)

SERENTIY
SCM#15
Drainage Area: 703,037 sf
16.14 ac
Impervious Area: 308,868 sf
7.09 ac
%Impervious: 43.9%
1 inch Storm Event:
Rv=0.05+0.009 I
Rv=runoff coefficient
I=percent impervious
Rv= 0.4454
For volume that must be controlled:
Volume=3,630*Rd*Rv*A
Volume required: 26,094 cf
Volume provided: 28990 cf
Average depth: 3.7 ft
SA/DA ratio 1.42
Required surface area: 9983 sf
Surface area provided: 16828 sf