HomeMy WebLinkAboutSW8050852_COMPLIANCE_20050913STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�`JSD�S�
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD
DETENTION POND ANALYSIS FILE NAME: G:\DATA\WPDATA\WQS\POND1050852.WK1
PROJECT SW8 050852 REVIEWER: R Gordon
PROJECT NAME: Dollar General - Atkinson
DATE: 13-Sep-05
Receiving Stream: Mill Branch Class: C;Sw
Drainage Basin: Cape Fear Index No. 18-68-18-10
Site Area 1.64 acres
Drainage Area 1:::!:::; �7 71:14 3 9-. W! I square feet Area = 1.64 acres
IMPERVIOUS AREAS
Rational C
Buildings
11600.00
square feet 0.95
Parking
27366.00
square feet 0.95
Sidewalks
1553.00
square feet 0.95
Other
645.00
square feet 0.95
square feet
square feet
TOTAL square feet
Rational Cc= 0.63
SURFACE AREA CALCULATION
% IMPERVIOUS
57.62%
SA/DA Ratio 5.76%
Des. Depth
3.5
Req. SA 4116
sf
TSS:
90
Prov. SA sf
VOLUME CALCULATION
place a "'I" in the box if Rational is used
Rational ?*
FOREBAY
Des. Storm
inches
Perm. Pool Volume=
17166
Rv=
0.57
Req. Forebay Volume=
3433.2
Bottom
57 msl
Provided Volume=
3537.00
Perm. Pool
msl
Percent=
Design Pool
61.15 msl
Design SA
9016 sf
Req. Volume
cf
SA @
Prov. Volume
cf
Elevation=
ORIFICE CALCULATION
Avg. Head =
0.30 ft
Q2 Area = 1.06
sq. in.
Flow Q2, cfs
0.020 cfs
Q5 Area = 0.42
sq. in.
Flow Q5, cfs
0.008 cfs
Orifice Area 0.79
sq. in.
No. of Orifices
Q= 0.014
cfs
Diameter, in
weir H x W
in x
in
Drawdown
::
days
COMMENTS
Surface Area, Volume and Orifice are within Design Guideline:
NC DENR - DIVISON OF WATER QUALITY
.0311 CAPE FEAR RIVER BASIN
2B .0300
Classification
Name of Stream Description Class Date Index No.
Marsh Branch
From source
to
Johns Swamp
C;Sw
09/01/74
18-68-17-6-1
Branch
Thumb Swamp
From source
to
Colly Creek
C;SW
09/01/74
18-68-17-7
Moores Creek
From source
to
Black River
C;Sw
04/01/59
18-68-18
Bullhead Branch
From source
to
Moores Creek
C;Sw
04/01/59
18-68-18-1
Bulltail Creek
From source
to
Moores Creek
C;Sw
04/01/59
18-6B-18-2
Gum Branch
From source
to
Bulltail
C;Sw
04/01/59
18-68-18-2-1
Creek
Laurel Creek
From source
to
Moores Creek
C;Sw
04/01/59
18-65-1B-3
Dry Branch
From source
to
Moores Creek
C;Sw
04/01/59
18-65-18-4
White Oak Branch
From source
to
Moores Creek
C;Sw
09/01/74
18-68-18-5
Big Rattlesnake Creek
From source
to
white Oak
C;Sw
09/01/74
18-68-18-5-1
Branch
Crab Branch
From source
to
White Oak
C;Sw
09/01/74
1B-68-lB-5-2
Branch
Tuckahoe Branch
From source
to
white Oak
C;Sw
09/01/74
18-68-18-5-3
Branch
Taylor Branch
From source
to
Moores Creek
C;Sw
04/01/59
16-68-16-6
Bear Den Branch
From source
to
Moores Creek
C;Sw
04/01/59
18-68-15-7
Red Bank Branch
From source
to
Moores Creek
C;Sw
04/01/59
18-68-1B-8
Buxton Branch
From source
to
Moores Creek
C;SW
04/01/59
18-68-1B-9
Mill Branch
From source
to
Buxton Branch
C;Sw
04/01/59
18-68-1B-9-1
Mill Branch
From source
to
Moores Branch
C;Sw
04/01/59
18-68-18-10
Deer Valley Branch
From source
to
Moores Branch
C;Sw
04/01/59
18-68-18-11
Lewis Branch
From source
to
Deer Valley
C;Sw
04/01/59
18-68-18-11-1
Branch
Lee Ditch
From source
to
Lewis Branch
C;Sw
04/01/59
18-68-18-11-1-1
Big Branch
From source
to
Moores Creek
C;Sw
04/01/59
18-66-18-12
Bear Branch
From source
to
Black River
C;Sw
04/01/59
18-68-19
Cane Creek
From source
to
Black River
C;Sw
04/01/59
18-68-20
Cross Way Creek
From source
to
Black River
C;Sw
04/01/59
18-69-21
Lyon Thorofare
From source
to
Black River
C;Sw
04/01/59
18-68-22
Lyon Creek
From source
to
Lyon
C;Sw
07/01/73
18-68-22-1
Thorofare
Lyon Swamp Canal (Lyon
From source
to
Lyon Creek
C;Sw
07/01/73
1a-68-22-1-1
Swamp)
worth Canal
From source
to
Lyon Swamp
C;Sw
07/01/73
18-68-22-1-1-1
Canal
Buckle Swamp Creek
From source
to
Lyon Creek
C;Sw
09/01/74
18-68-22-1-2
Black Swamp Creek (Back
From source
to
Buckle
C;Sw
09/01/74
18-68-22-1-2-1
Swamp Creek)
Swamp Creek
Salt Marsh Ditch
From source
to
Black Swamp
C;Sw
09/01/74
18-68-22-1-2-1-1
Creek
White Oak Canal
From source
to
Buckle
C;Sw
09/01/74
16-68-22-1-2-2
Swamp Creek
Natmore Creek
From Hydrologic Unit line to
C;Sw
09/01/74
18-68-22-1-2-2-1
white Oak Canal
(HU
located 0.5
mile upstream of
of mouth)
47
TopoZone - The Web's Topographic Map
Page 1 of 1
54
r 3
.\`w., r• ,.t''� '�' `s oaf .�`.rvi ��•'""w,*. r'
�• 4--i d l
i�fyp1.�j* `` ,..�'a �ytv� ' �/ r' \, c t st • i 111 e, �:. i
x, GOB '! 1
• 6
i (((I � r-1 e• •` ♦ �,�..f1] I I V't° l r= fit; } ` f-a �.: .. F".�`"'"f'x
�.•. • . �� k insan�:�
♦ .+� _ :• = i �~`, ` - ,� "' ""° �-- ry �+i}{-,_F�� _ ,�� :,} y. , '� ...«�•� yam-,, c
jyN f
4 1 �i }i ' i y 'ram✓ Y h 5 «., �., A,� % 4 A ,
.66 �,` . • Cs e
m y .Lr``g �'"'^, �'._� � � y fit-! _ `` .�- .,,� • iH �,��
R.t
0 0.3 0.6 0.9 1.2 1.5 km• G
0 0.1 0.2 0.3 0.4 0.5 mi
Map center is 340 31' 56"N, 781 09' 55"W (WGS84/NAD83)
Atkinson quadrangle M=-8,883
Projection is UTM Zone 17 NAD83 Datum G=1.608
http://www.topozone.com/print.asp?z=17&n=3824823.99912764&e=760183.000210723&s=4... 9/12/2005