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Project Name: Catawba Hills
Project No. DWQ 00-1449
Pond No.
SUBMITTED DESIGN. 2
elevations
Bottom of Basin (ft) 622.5
Permanent Pool (ft) 624
Temporary Pool (ft) 625.5
areas
Permanent Pool SA (sq ft) 3977
Drainage Area (ac) 1.93
Impervious Area (ac) 1
volumes
Permanent Pool (cu ft) 7533
Temporary Pool (cu ft) 5416
Forebay (cu ft) 1943
other parameters
SA/DA 2.13
Orifice Diameter (in) 0.75
Design Rainfall (in) 4.92
Linear interpolation of Correct SA/DA***
Im ervious
Next Lowest 50
Project Impervious 51.8
Next Highest 60
REQUIRED DESIGN:
1.9''~ average depth status
1.5 ft. depth check depth
1.5 ft. depth ok
1784 sq. ft. ok
,. ` .2693.,, based on avg depth ok
51.8 % -
17797 cu. ft. check tempo
25.8 % check forebc
2.12 -
0.01 cfs drawdown -
4.9 day drawdown ok
1.5 ft. Permanent Pool Depth
SA/DA fron (Avg. Depth)
2.06 3.143741514 1.08
2.12 3.20 1.14
2.4 3.472682927 1.43
aft 4
Project Name: Catawba Hills
Project No. DWQ 00-1449
Pond No.
SUBMITTED DESIGN.• 2
elevations
Bottom of Basin (ft) 621
Permanent Pool (ft) 624
Temporary Pool (ft) 625.5
areas
Permanent Pool SA (sq ft) 3977
Drainage Area (ac) 1.93
Impervious Area (ac) 1
volumes
Permanent Pool (cu ft) 7533
Temporary Pool (cu ft) 5416
Forebay (cu ft) 1500
other parameters
SA/DA 2.13
Orifice Diameter (in) 1
Design Rainfall (in) 1
Linear Interpolation of Correct SA/DA
Im ervious
Next Lowest 50
Project Impervious 51.8
Next Highest 60
REQUIRED DESIGN.•
1.9 average depth status
3 ft. depth ok
1.5 ft. depth ok
1784 sq. ft. ok
2693 based on avg depth ok
51.8 % -
3617 cu. ft, ok
19.9 % ok
2.12
0.02 cfs drawdown -
2.8 day drawdown ok
3 ft. Permanent Pool Depth
SA/DA fron (Avg. Depth)
2.06 3.143741514 1.08
2.12 3.20 1.14
2.4 3.472682927 1.43
aft 4
Project Name: Catawba Hills
Project No. DWQ 00-1449
Pond No.
SUBMITTED DESIGN.• 1
elevations
Bottom of Basin (ft) 622.5
Permanent Pool (ft) 624
Temporary Pool (ft) 624.6
areas
Permanent Pool SA (sq ft) 9056
Drainage Area (ac) 9.89
Impervious Area (ac) 4.72
volumes
Permanent Pool (cu ft) 13527
Temporary Pool (cu ft) 19051
Forebay (cu ft) 2714
other parameters
SAlDA 2.06
Orifice Diameter (in) 1.5
Design Rainfall (in) 4.92
Linear Interpolation of Correct SA/DA
Im envious
Next Lowest 50
Project Impervious 47.7
Next Highest 60
REQUIRED DESIGN.•
1.5 average depth status
1.5 ft. depth check depth
0.6 ft. depth ok
8541 sq. ft. ok
14916: based on avg depth check surfac
47.7 % -
84699 cu. ft. check tempo
20.1 % ok
1.98 -
0.03 cfs drawdown -
6.8 day drawdown check drawG
1.5 ft. Permanent Pool Depth
SA/DA fron (Avg. Depth)
2.06 3.536168286 1.08
1.98 3.46 1.00
2.4 3.861105345 1.43
aft 4
Project Name: Catawba Hills
Project No. DWQ 00-1449
Pond No.
SUBMITTED DESIGN: 1
elevations
Bottom of Basin (ft) 621
Permanent Pool (ft) 624
Temporary Pool (ft) 624.6
areas
Permanent Pool SA (sq ft) 9056
Drainage Area (ac) 9.89
Impervious Area (ac) 4.72
volumes
Permanent Pool (cu ft) 26000
Temporary Pool (cu ft) 19051
Forebay (cu ft) 5000
other parameters
SA/DA 2.06
Orifice Diameter (in) 2
Design Rainfall (in) 1
Linear Interpolation of Correct SA/DA ***
Im ervious
Next Lowest 40
Project Impervious 47.7
Next Highest 50
REQUIRED DESIGN:
,? 2.9 average depth status
3 ft. depth ok
0.6 ft. depth ok
8551 sq, ft. ok
8904 based on avg depth ok
47.7 % -
17215 cu. ft. ok
19.2 % ok
1.98 -
0.06 cfs drawdown -
3.8 day drawdown ok
3 ft. Permanent Pool Depth
SA/DA fron (Avg. Depth)
1.73 1.813 8 3 3 922 1'.08
1.98 - ' ` 2.07' 1.35
2.06 2.141254417 1.43
3 ft 4
Project No. DWQ Catawba Hills
Project Name: 00-1449
SUBMITTED DESIGN.• 1 REQUIRED DESIGN.•
3/21 /2006
elevations
Permanent Pool (ft) 628 0.5 ft. depth ok
Temporary Pool (ft) 628.5
areas
Permanent Pool SA (sq ft) 1861.59 103 sq. ft. ok
Drainage Area (ac) 0.74 ac
Impervious Area (ac) 0.432 58.4 % impervious
Rational C 0.65
Precipitation (in) 0.07 no sand underdrain
volumes
Inlet Velocity 3.69 0 fps check veloci
Inlet Flow Depth 628.5 in
Depth to Ground Water 6 ft
Planting Soil Infiltration 0.5 0.52 in/hr check
In-Situ Soil Infiltration 0 0.00 in/hr check
Project No. DWQ Catawba Hills
Project Name: 00-1449
SUBMITTED DESIGN.• 1 REQUIRED DESIGN.•
3/21 /2006
elevations
Permanent Pool (ft) 628 0.5 ft. depth
Temporary Pool (ft) 628.5
areas
Permanent Pool SA (sq ft) 1861.59 103 sq. ft.
Drainage Area (ac) 0.74 ac
Impervious Area (ac) 0.432 58.4 % impervious
Rational C 0.65
Precipitation (in) 0.07 no sand underdrain
volumes
Inlet Velocity 0.67 0 fps
Inlet Flow Depth 628.5 in
Depth to Ground Water 4 6 ft
Planting Soil Infiltration 0.52 0.52 in/hr
In-Situ Soil Infiltration 0.52 0.00 in/hr
ok
ok
ok
ok
ok