20070070 Ver 2_Worksheets_20070523

1
Project Name: Louisburg Pla. ~ ~ Z~ ~ ~ 1
Project No. DWQ 07-0070v2
Shallow WL 1
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations
Permanent Pool (ft) 271 3
Temporary Pool (ft) 272 1 ft. depth ok
areas
Permanent Pool SA (sq ft) 25981 25601 sq. ft. ok
Drainage Area (ac) 24.26
Impervious Area (ac) 14.67 ° -
Forebay (ft2) 1964 7.5593703 % check forebc
High Marsh (ft2) 8984 % ok
Low Marsh (ft2) 9245 _ ok
Micropool (ft2) 5783 22.258574 % check micro,
98 °
volumes
Temporary Pool (cu ft) 52330 52330 cu. ft. check tempo
other parameters
SA/DA 2.4 2.42 -
Orifice Diameter (in) 4 0.30 cfs drawdown -
Design Rainfall (in) 1 2.0 day drawdown ok
Linear Interpolation of Correct SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 60 2.4
Project Impervious 60.5 2.42
Next Highest 70 2.88
C%c~ 5. 23 ~ `~ ~

Project Name: Louisburg Plaa ~' Z'3 ~ ~ ~ ~~~~ /
Project No. DWQ 07-0070v2
Shallow WL 2
SUBMITTED DESIGN. REQUIRED DESIGN:
elevations
Permanent Pool (ft) 260 3
Temporary Pool (ft) 261 1 ft. depth ok
areas
Permanent Pool SA (sq ft) 19298 18270 sq. ft. ok
Drainage Area (ac) 17.12
Impervious Area (ac) 10.43 -
Forebay (ft2) 1385 7.1769095 °/ check forebc
High Marsh (ft2) 6920 % ok
Low Marsh (ft2) 6823 , ° ok
Micropool (ft2) 4160 21.556638 % check micro,
99.9 °
volumes
Temporary Pool (cu ft) 37247 37247 cu. ft. check tempo
other parameters
SA/DA 2.4 2.45 -
Orifice Diameter (in) 2 0.07 cfs drawdown -
Design Rainfall (in) 1 5.8 day drawdown check drawn
Linear Interpolation of Corr ect SA/DA
3 ft. Permanent Pool Depth
Im ervious SA/DA from Table
Next Lowest 60 2.4
Project Impervious 61.0 2.45
Next Highest 70 2.88