20070973 Ver 1_Worksheets_20070611

Project Name: SoParkVill
Project No. DWQ 07-0973
WL2
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations
Permanent Pool (ft) 451 3
Temporary Pool (ft) 452 1 ft. depth ok
areas
Permanent Pool SA (sq ft) 12567 6340 sq. ft. ok
Drainage Area (ac) 4.38
Impervious Area (ac) 3.47 79.2 % -
Forebay (ft2) 2363 18.803215 % check forebc
High Marsh (ft2) 4398 35.0 % ok
Low Marsh (ft2) 4399 35.0 % ok
Micropool (ft2) 1945 15.477043 % ok
104.2811
volumes
Temporary Pool (cu ft) 13376 12131 cu. ft. ok
other parameters
SA/DA 3.33 3.32 -
Orifice Diameter (in) 2.5 0.12 cfs drawdown -
Design Rainfall (in) 1 1.3 day drawdown check drawG
Linear Interpolation of Corr ect SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 70 2.88
Project Impervious 79.2 3.32
Next Highest 80 3.36

Project Name: SoParkVill
Project No. DWQ 07-0973
WL1
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations
Permanent Pool (ft) 430 3
Temporary Pool (ft) 431.35 1.35 ft. depth ok
areas
Permanent Pool SA (sq ft) 74547 46661 sq. ft. ok
Drainage Area (ac) 52.32.
Impervious Area (ac) 25.96 49.6 % -
Forebay (ft2) 9123 12.237917 % check forebc
High Marsh (ft2) 27821 37.3 % ok
Low Marsh (ft2) 28328 38.0 % check marsh
Micropool (ft2) 10400 13.95093 % ok
101.5091
volumes
Temporary Pool (cu ft) 103543 94307 cu. ft. ok
other parameters
SA/DA 2.05 ~ ~ 2.05 -
Orifice Diameter (in) 12 3.11 cfs drawdown -
Design Rainfall (in) 1 0.4 day drawdown check drawG
Linear Interpolation of Correct SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 40 1.73`
Project Impervious 49.6 2.05
Next Highest 50 2.06