20070503 Ver 2_Worksheets_20070522

Project No. DWQ EXP 07-0503
Project Name: E-22 School
Bio-retention 2
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations ~-=~~
Permanent Pool (ft) 317 ~ 6 ft. depth check depth
Temporary Pool (ft) 323
areas
Permanent Pool SA (sq ft) 7396 40478 sq. ft. check surfac
Drainage Area (ac) ac
Impervious Area (ac) 1.41 % impervious
Rational C 0.63
Size % 5 no sand underdrain
volumes
Inlet Velocity 5.2 0 fps check veloci
Inlet Flow Depth 6 in
Depth to Ground Water 5 6 ft
Planting Soil Infiltration 1.2 0.52 in/hr ok
In-Situ Soil Infiltration 0.5 0.00 in/hr ok

Project No. DWQ EXP 07-0503
Project Name: E-22 School
Bio-retention 1
SUBMITTED DESIGN.
elevations
Permanent Pool (ft) 305
Temporary Pool (ft) 311
areas
Permanent Pool SA (sq ft) 20037.
Drainage Area (ac) 14.32
Impervious Area (ac) 5.6'7
Rational C 0.59
Size % 5
volumes
Inlet Velocity
Inlet Flow Depth
Depth to Ground Water
Planting Soil Infiltration
In-Situ Soil Infiltration
6.5
6
6
1.2
0.5
D
D
(~v~
REQUIRED DESIGN:
6 ft. depth
184015 sq. ft.
ac
39.6 % impervious
no sand underdrain
0 fps
in
Eft
0.52 in/hr
0.00 in/hr
0
0
s - ~-~ ~ ~
check depth
check surfac
check veloci
ok
ok
r~af- O~