20051882 Ver 4_Worksheets_20070702

Project Name: Highland Cree
Project No. DWQ OS-1882v2
SWMF 1
SUBMITTED DESIGN. REQUIRED DESIGN:
elevations
Permanent Pool (ft) 275 3
Temporary Pool (ft) 276.57 1.57 ft. depth ok
areas
Permanent Pool SA (sq ft) 24433 20770 sq. ft. ok
Drainage Area (ac) 22.8
Impervious Area (ac) 11.61 50.9 % -
Forebay (ft2) 4005 16.391765 % ok
High Marsh (ft2) $995 36.8 % ok
Low Marsh (ft2) 7294 29.9 % check marsh
Micropool (ft2) 4138 16.936111 % ok
99.99591
volumes
Temporary Pool (cu ft) 42068 42068 cu. ft. check tempo
other parameters
SA/DA 2.09 2.09 -
Orifice Diameter (in) 3 0.21 cfs drawdown -
Design Rainfall (in) 1 2.3 day drawdown ok
Linear Interpolation of Correct SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 50 2.06
Project Impervious 50.9 2.09
Next Highest b0 2.4

Project Name: Highland Cree
Project No. DWQ OS-1882v2
SWMF 2
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations

Permanent Pool (ft) 278 3
Temporary Pool (ft) 279.61 1.61 ft. depth ok
areas
Permanent Pool SA (sq ft) 14506 12129 sq. ft. ok
Drainage Area (ac) 12.1$
Impervious Area (ac) 69 56.7 % -
Forebay (ft2) 1934 13.332414 % ok
High Marsh (ft2) 5237 36.1 % ok
Low Marsh (ft2) 5453 37.6 % ok
Micropool (ft2) 1882 12.973942 % check micro,
100
volumes
Temporary Pool (cu ft) 24753 24753 cu. ft. ok
other parameters
SA/DA 2.29 2.29 -
Orifice Diameter (in) 2 0.09 cfs drawdown -
Design Rainfall (in) 1 3.0 day drawdown ok
Linear Interpolation of Correct SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 50 2.06
Project Impervious 56.7 2.29
Next Highest 60 2.4

Project Name: Highland Cree
Project No. DWQ OS-1882v2
SWMF 7
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations
Permanent Pool (ft) 266.5 3
Temporary Pool (ft) 267.98 1.48 ft. depth ok
areas
Permanent Pool SA (sq ft) 29498 23411 sq. ft. ok
Drainage Area (ac) 31.67
Impervious Area (ac) 12.4 39.2 % -
Forebay (ft2) 2524 8.5565123 % check forebc
High Marsh (ft2) 10372 35.2 % ok
Low Marsh (ft2) 13951 47.3 % check marsh
Micropool (ft2) 2651 8.98705 % check micro,
100
volumes
Temporary Pool (cu ft) 46455 46259 cu. ft. ok
other parameters
SA/DA 1.7 1.70 -
Orifice Diameter (in) 3 0.20 cfs drawdown -
Design Rainfall (in) 1 2.6 day drawdown ok
Linear Interpolation of Corr ect SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 30 1.34
Project Impervious 39.2 1.70
Next Highest 40 1.73

Project Name: Highland Cree
Project No. DWQ OS-1882v2
SWMF 10
SUBMITTED DESIGN:
elevations
Permanent Pool (ft) 272
Temporary Pool (ft) 273.7
areas
Permanent Pool SA (sq ft) 28219
Drainage Area (ac) 26.85
Impervious Area (ac) 14.07
Forebay (ft2) 3825
High Marsh (ft2) 8348
Low Marsh (ft2) 11644
Micropool (ft2) 4402
volumes
Temporary Pool (cu ft)
50840
other parameters
SA/DA
Orifice Diameter (in)
Design Rainfall (in)
2.14
3
1
Linear Interpolation of Correct SA/DA
Im ervious
Next Lowest 50
Project Impervious 52.4
Next Highest 60
REQUIRED DESIGN:
3
1.7 ft. depth
25049 sq. ft.
52.4
13.554697
29.6
41.3
15.599419
100
50840 cu. ft.
2.14
0.22 cfs drawdown
2.7 day drawdown
3 ft. Permanent Pool Depth
SA/DA from Table
2:.06
2.14
2.4
ok
ok
ok
check marsh
check marsh
ok
ok
ok