SW6100103_COMPLIANCE_20121003

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW l tl2o Z223
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
�2
YYYYMMDD

®ENR—FRO
Noah Woods, Chairman
Tom Taylor, Vice -Chairman
County Attorney
J. Ilal Kinlaw, Jr.
September 21, 2012
ROBESON COUNTY
Board of Commissioners
Commissioners
Raymond Cummings Lance Herndon
David Edge Roger Oxendine
Ricky Harris, County Manager
NCDENR
ATTN: Belinda S. Henson
225 Green Street, Suite 714
Fayetteville, NC 28301
Deputy Clerk to the Board
Hope Bra) boy
RE: Notice of Violation (NOV-2012-13CO295)
Robeson County DSS Facility
Dear Ms. I -Jenson:
OCT 0 3 2012
M
Hubert Staley
Jerry Stephens
Clerk to the Board
Tammy S. Freeman
Robeson County is in receipt of the Notice of Violation (NOV-2012-PCO295) dated
August 28, 2012. We are aware of the fact that the Gate Valve at the Wet Detention
Pond is not properly maintaining a seal, thus allowing water to escape from the pond.
Robeson County and our Maintenance Department understand that this gate valve is only
to be used in the case of an emergency or to perform maintenance on the pond or its
structures. Currently we are working with the Engineer of Record and the contractors
responsible for the gate valves installation to correct this issue.
With regard to the areas of the pond which need to be replanted/re-vegetated, this would
be a warranty issue since the groundcover was not established in the allowed grow -in
period. We have contacted the responsible landscaping company and will ensure that this
area is brought into compliance.
We anticipate that the corrective measures required will be complete by the end of
November 2012.
701 North Elm Street ♦ Lumberton, North Carolina 28358 ♦ Phone [phone] ♦ Fax Number: [phone]
ivww. co. robeson. ne. us

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North Carolina Department of Environment and Natural Resources
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Governor
CERTIFIED MAIL: 7009 0820 0000 2474 1855
RETURN RECEIPT REQUESTED
County of Robeson
Attn: Ricky Harris, County Manager
701 North Elm Street
Lumberton, NC 28358
Division of Water Quality
Charles Wakild, PE
Director
August 28, 2012
Subject: NOTICE OF VIOLATION (NOV-2012-PC-0295)
Stormwater Management Permit SW6100103
Robeson County DSS Facility
Robeson County
Dear Mr. Harris:
Dee Freeman
Secretary
On August 21, 2012, Michael Lawyer, Environmental Specialist from the Fayetteville Regional Office of the Division of
Water Quality conducted a Compliance Evaluation Inspection at the Robeson County DSS Facility located at 120 Glen
Cowan Road in Lumberton, Robeson County, North Carolina. The purpose of the inspection was to ensure compliance
with Stormwater Management Permit SW6100103 that was issued on February 15, 2010. A copy of the Compliance
Inspection Report is enclosed for your review. As a result of the inspection and subsequent file review, it has been
determined that the facility is Not Compliant. Please refer to the enclosed Compliance Inspection Report for additional
comments and observations made during the inspection.
The required actions that are necessary to bring this site into compliance are noted under the Inspection Summary and
Comments sections of the report. You are asked to provide this office a written/typed response within 30 calendar days
from receipt of this letter. Your response should specify actions that will be undertaken and the time frame that will be
required to correct the deficiencies as well as copies of any maintenance records as required by Section II, Item 4 of the
permit. Failure to properly resolve the violation(s) may constitute the assessment of a civil penalty of up to
$25,000 per day, per violation. If you have any questions or this office can be of any assistance, please contact Mr.
Lawyer at [phone] or by e-mail at [e-mail]
Sincerely,
i4j,0C) J. iwx��
Belinda S. Henson
Regional Supervisor
Surface Water Protection Section
BSH: ML/ml
Enclosure
cc: Samuel J. Powers, PE - Anderson Engineering & Associates, PA (via e-mail)
FRO - Surface Water Protection Section -
Location: 225 Green Street. Suite 714, Fayetteville, North Carolina 28301
Phone: 91 OA33-33001 FAX: [phone] Customer Service: 1-877-623-6748
Internet: httpalportal.ncdenr.orglwetilwq
An Equal Opportunity'. Affirmative Action Employer
NorthCarolina
Naturally

Compliance Inspection Report
Permit: SW6100103 Effective: 02/15/10 Expiration: 12/29/21 Owner: County of Robeson
Project: Robeson County DSS Facility (SSW)
County: Robeson 120 Glen Cowan Rd SO 547
Region: Fayetteville
Lumberton INC 28360
Contact Person: Sam Isham Title: Phone: [phone]
Directions to Project:
Take Exit 17 from 1-95, head west on INC Hwy 711 for approx. 0.78 mi, turn right on SR 1547 (Glen Cowan Rd). Proposed main
entrance for development will be approx. 450 feet north of the NC Hwy 711-SR 1547 intersection on left.
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas: 1 - (LUMBER RIVER) (03-07-51) ( WS-IV,B;Sw,HQW)
On -Site Representative(s):
Related Permits:
Inspection Date: 08/21/2012 Entry Time: 12,43 P Exit Time: 01:10 PM
Primary Inspector: Mike Lawyer
�Phone: [phone]
Secondary Inspector(s) : ExLY2g-
33Z9
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant ■ Not Compliant
Question Areas:
State Stormwater
(See attachment summary)
Page:1

Permit: SW6100103 Owner - Project: County of Robeson
Inspection Date: 08/21/2012 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Inspection conducted to ensure compliance with the conditions of Stormwater Management Permit SW6100103.
Proposed built -upon area, drainage system, and wet detention pond appeared to be installed per the approved plans.
Pond was discharging at the time of inspection through open gate valve at the bottom of the outlet structure instead of the
approved drawdown devices. This does not allow the pond to reach its designed and approved permanent pool. Certain
areas of the vegetative shelf and side slopes appeared to be in need of re-planting/re-vegetation.
Page: 2

Permit: SW6100103 Owner - Project: County of Robeson
Inspection Date: 08/21/2012 Inspection Type: Compliance Evaluation Reason for Visit: Routine
File Review Yes No NA NE
Is the permit active? ■ 0 0 0
Signed copy of the Engineer's certification is in the file?
Signed copy of the Operation & Maintenance Agreement is in the file?
Copy of the recorded deed restrictions is in the file?
Comment:
Built Upon Area
Is the site BUA constructed as per the permit and approval plans?
Is the drainage area as per the permit and approved plans?
Is the BUA (as permitted) graded such that the runoff drains to the system?
Comment:
SW Measures
Are the SW measures constructed as per the approved plans?
Are the inlets located per the approved plans?
Are the outlet structures located per the approved plans?
Comment:
■000
■nnn
00■0
Yes No NA NE
■nnn
■000
■000
Yes No NA NE
■000
■nnn
■nnn
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? 0 ■ ❑ 0
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ 0 D D ■
upon request?
Comment: At -the time of inspection, pond was discharging through open gate valve at
bottom of outlet structure instead of approved drawdown devices. Sections of the
vegetative shelf appeared to need re -planting and several areas including, but not
limited to the back side slope and adjacent to the fire lane also need to be re -vegetated.
Other Permit Conditions Yes No NA NE
Is the site compliant with other conditions of the permit? ■ 0 ❑
Comment:
Other WQ Issues Yes No NA NE
Is the site compliant with other water quality issues as noted during the inspection? ■ 0 ❑ ❑
Comment:
Page:3

Lawyer, Mike
From: Sam Powers [[e-mail]]
Sent: Wednesday, February 10, 2010 1:20 PM
To: Lawyer, Mike
Cc: 'Larry W. Anderson'; 'Wesley Anderson'; 'Eric Schoenagel'; 'Sam'
Subject: DSS SW Permit
Attachments: DSS - SW Permit App - Revised Page 3 (2-10-2010).pdf; DSS - REVISED Wet Detention
Basin Supplement (02-10-2010).pdf; DSS Retention REVISED 2010-02-10.pdf
Mike,
Please find attached the revised documentation on the DSS project as we discussed on the phone. I am sending the
revised page 3 of the permit application, the revised wet detention basin supplement form, and the revised supporting
calculations. I have changed all these documents to reflect 30 acres as the project area and total build -out of 21 acres,
which will be the maximum allowed impervious area since there can be no more than 70% of the site covered by
impervious area due to the fact that it is located in a water supply watershed (WS-IV). Please note that the plans and the
wet detention basin layout as previously submitted to you have NOT changed as a result of these revisions.
Should you require any additional information, please do not hesitate to contact me.
Thanks!
Samuel J. Powers, PE
ANDERSON ENGINEERING & ASSOCIATES, PA
305 N. Chippewa Street
Lumberton, NC 28358
Bus: [phone]
Fax: [phone]

4. Local jurisdiction for building permits: City of Lumberton Planning & Inspections Department
Point of Contact:Brandon Love, Director
IV. PROJECT INFORMATION
Phone #: (910 ) 671 3976
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
El Valid Building Permit Issued Date:
❑ Other: Date:
b. identify the regulation(s) the rol'ect has been designed in accordance with:
❑ Coastal SW -1995 Ph II - Post Construction
3. Stormwater runoff from this project drains to the Lumber River basin.
4. Total Property Area: 30.0 acres 5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area':
30.0 acres
Total project area shall be calculated to exclude the following: the normal pool of imppounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal roetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal roetlands landward of the NHW (or MHW) line may be
included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100
9. How many drainage areas does the project have?1 (For high density, count 1 for each proposed engineered
stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
;Basirfdn ormation ^ ;;;?fig F .:':_
. Drainage -Area 1;
Brainag e Area :_l
0raina e'Area' °�s
Draina e'Area
Receiving Stream Name
Lumber River
Stream Class "
WS-IV,B;
Sw,H W
Stream Index Number •
14-(7)
Total Drainage Area (sf)
1,306,800
On -site Drainage Area (sf)
1,306,800
Off -site Drainage Area (s
0
Proposed Impervious Area" (sf)
914,760
Impervious Area" (total)
70.0
;Im ivi6us".SurfaceiArea• ', �i
rDraina e Areal.
:Drain` e=Area t'
'Drama e,Area._a1
;Drain e Area
On -site Buildings/Lots (so
52,707.6
On -site Streets (so
0
On -site Parking (sf)
248,727.6
On -site Sidewalks (sf)
14,810.4
Other on -site (sf)
0
Future (sf)
598,514.4
Off -site (sf)
0
Existing BUA*" (sf)
0
Total (sf):
914,760
" Stream Class and Index Number can be determined at: http://h2o.enr.state.nc.uslbittis/reportslreportsWB.Iitnd
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-I01 Version 07July2009 Page 3 of 6

Permit No5e�l ec 3
to, be provOea by DWOJ
OF W A TFH
NCDENR
o�z
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
L"PROJECTANFORMATI0N .9rat 'r"'-'nc ,.itlF'. x,'tt racy T. :. s „R, zJ�x, nr..ra. =ot, 3 a,�°�„� .?Y .%r,,ta ,✓> .:��.1�`,..,..,„. ,'„ h"3,. 'a -: s1Yr
Project name
Robeson County DSS Facility
Contact person
Sam Powers, PE
Phone number
910.671.9530
Date
2/10I2010
Drainage area number
1
IWDESIGN
She Characteristics
Drainage area
1,306,800 ft2
Impervious area, post -development
914,760 it
%impervious
70.00 %
Design rainfall depth
1.0 in
StorageVolume: Non-SAWaters
Minimum volume required
74,052 ft3 OK
Volume provided
152,733 fta
OK, volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1.5' runoff volume
ft3
Pre -development 1-yr. 24-hr ranch
ft3
Post -development 1-yr, 24-hr runoff
ft3
Minimum volume required
its
Volume provided
It
Peak Flow Calculations
Is the pre/post control of the lyr 24hr storm peak flow
required? N (Y or N)
��� H R p
1-yr, 24-hr rainfall depth
in
-?
��P.•'SS•
Rational C, predevelopmenl
(unilless)
Rational C, post -development
hss)
_
Rainfall intensity:: 1-y4 24-hr storm
in/h
intr
6 9
Pre -development 1-yr, 24-hr peak flow
fts/sec
Post -development l-yr, 24-hr peak flow
ftt/sec
ciyG Q;'•C
Pre/Post 1-yr, 24-hr peak flow control
ftslsec
Elevations
Temporary pool elevation
Permanem pod elevation
136.00 fmsl
133.50 fmsl
SH WT elevation (approx. at the perm. pool elevation) 134.00 fatal
Top of loft vegetated shelf elevation
134.00 fmsl
Bottom of 10ft vegetated shelf elevation
133.00 find
Sediment deanout, top elevation (bottom of pond)
130.00 fmsl
Sediment deanout bottom eleval'lon
129.00 fmsl
Sediment storage provided
1.00 ft
Is there additional volume stored above the state -required temp. pool? Y (Y or N)
Elevation of the top of the additional volume
136.0 fmsl OK
Form SW401-Wet Detention Bask-Rev.8-9/17109 Parts I. a II. Design Summary. Page 1 of

Permit No4/W 16" 163
(to De PmvNea DY DWD)
IIi DESIGN INFORMATION+1 .v...tli',-,v,J° aj?FF ",ro.v:,`$)i.'a
Surface Areas
Area, temporary pool
73,066 ft'
Area REQUIRED, permanent pod
52,272 ft
SA/DA ratio
4.00 (unities)
Area PROVIDED, permanent pod, Ap,,,,_,�
54,899 112
OK
Area, bottom of ?Oft vegetated shelf, A, ,MI
46,166 W
Area, sediment deanout, top elevation (bottom of pond), A .
35,231 it
Volumes
Volume, lempomry pool
152.733 ft'
OK
Volume, permanent pool, Vy.
164,792 fls
Volume, forebay (sum of fombays if more than one forebay)
34,W4 ft'
Forebay % of permanent pool volume
20.6% %
OK
SAIDA Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
N (Y or N)
Mountain/Piedmont SAIDA Table Used?
Y (Y or N)
SAIDA ratio
4.00 (unit ess)
Average depth (used in SAIDA fade):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pod, Vp,,,,_,,
164,792 ft'
Area provided, permanent pool, A�
54,899 ft
Average depth calculated
3.DO It
OK
Average depth used in SAIDA, d,,, (Round to nearest 0.5ft)
3.0 It
OK
Calculation option 2 used? (See Figure 10-2b)
Y (Y or N)
Area provided, permanent pod, A,_,.
54.899 ft
Area, bottom of 1 Oft vegetated shelf, A.,
46,166 fit`
Area, sediment deanouL top elevation (bottom of pond), A,,„
35,231 rye
'Depth' (distance b/w bottom of 10ft shell and top of sediment)
3.00 ft
Average depth calculated
3.10 ft
OK
Average depth used in SAIDA, d„, (Round to nearest 0.5ft)
3.0 ft
OK
Drawdown Calculations
Drawdown through office?
Diameter of office (d circdar)
Area of orifice (if-wncircular)
Coefficient of discharge (Cu)
Diving head (Ha)
Drawdown through weir?
Weir type
Coefficient of discharge (Q,)
Length of weir (L)
Driving head (H)
Pre -development 1-yr, 24-hr peak flax
Post -development 1-yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdaxm time
Additional Information
Vegetated side slopes
Vegetated shell dope
Vegetated shelf width
Length of flowperh to width ratio
Length to width ratio
Trash rack for overflow & orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easemed provided?
Capures all mnoft at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
Y (Y or N)
4.00 in
In
0.60 (unilless)
0.83 It
N (Y or N)
(unilless)
it
It
ft'/sec
ft'Isec
0.77 ft'/sec Storage volume discharge rate greater than pm-dev. lyr24hr.
2.30 days OK, draws down in 2-5 days.
3:1
OK
10 :1
OK
10.0 it
OK
3:1
OK
6.0 :1
OK
Y (Y or N)
OK
1.Oft
OK
N (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
Gravity drain, B' Waterman CL-16 Canal 'Sluice' Gate
Faro SW401-Wet Detention Basin-Rev.8-9119N9 Pans I. & II. Design Summary, Page 2 012

STORMWATER RETENTION CALCULATIONS
Project: Robeson County DSS Facility By: Sip
Date: 2/10/10 (Rev.) Job #: 60-1214 O;
STAGE -STORAGE FUNCTION (ABOVE PERMANENT POOL)
S Z
133.50 0
0
0.0
134.00 63756.65
15939
15939
0.5
9,6765
-0.6931
0.49
135.00 68383.00
66070
82009
1.5
11.3146
0.4055
1.60
136.00 73065.84
70724
152733
2.5
11.9364
0.9163
2.50
137.00 77805.80
75436
228169
3.5
12.3378
1.2528
3.35
Constant (y-Intercept)
10.66931
Ks
=
43015
Slope (X Coefficient)
1.37567
b =
1.38000
Standard Error of Coefficient
0.07825
RZ =
0.99703
STAGE -STORAGE FUNCTION
log -log plot
1---14:0000
I 12:0000� -
i - 000
8:0000
y y = 1.3757x + 10.669 I - 0 Seriesl
c ' 6:0000 Rz=0.997 -Linear (Seriesl)
-40000
20000
�0:0000
-1.0000-0.5000 0.0000 0.5000 1.0000 1,5000
In Z
Future Impervious Area=
13.74ac
\\\\�N1ICq//////
Proposed Asphalt Area =
5.71 ac
S
Proposed Building Area (Roof) =
1.21 aczz
_.
Proposed Concrete Area =
0.34 ac
a
Treated Pervious, Prop. Medians =
1.47 ac
_=
3 •w� a
Treated Pervious Area, Lawn =
2.95 ac
J • FN Q ,
Untreated Pervious Area, Woods =
2.79 ac
IN
i���UF
Pond Area =
1.79 ac
td t P0�\\��
Total Drainage Area =
30.00 ac
qy / 1 0 l Zo,o (VXV)

STORMWATER RETENTION CALCULATIONS
Project: Robeson County DSS Facility By: Sip
Date: 2/10/10 (Rev.) Job #: 60-1214
Runoff Coefficient, C:
Pre -Development
ID Area (ac) C` C x A
Unimproved cleared area 27.21 0.35 9.52
Wooded, Sparse Ground Litter 2.79 0.20 0.56
Total 30.00 10.08
C,, = 0.34
Post -Development
UNTREATED RUNOFF (PERVIOUS AREAS ONLY)
ID Area (ac)
C.
C x A
Wooded, Sparse Ground Litter
2.79
0.20
0.56
Lawn, dense soil, flat 2%
0.00
0.17
0.00
Future Impervious Area
0.00
0.85
0.00
Total
2.79
0.56
C� = 0.20
TREATED RUNOFF
ID
Area (ac)
C.
C x A
Roof, inclined
1.21
1.00
1.21
Street, driveway, sidewalk
6.05
0.95
5.75
Lawn, dense soil, flat 2%
4.42
0.17
0.75
Pond Area
1.79
1.00
1.79
Future Impervious Area
13.74
0.95
13.05
Total 27.21
22.55
C� = 0.83
'Source: Elements of Urban Stormwater Design by H. Rooney Malcolm, P.E. - Exhibit 1
Storm Intensit
L = 1500 ft
�'
H = 10.5 ft
T� = 14.72 min
Ly)
T,. =
128
Say 15 min
Design Storn 10 year
Location: Lumberton, NC
Duration Intensity
[min] [in/hr]
10 6.48
15 110
15 5.46
So, 110 = 5.46
UNTREATED Qp = C x Ito x A = 3.05 cfs
TREATED Qp = C x I10 x A = 123.31 cfs

STORMWATER RETENTION CALCULATIONS ".
Project: Robeson County DSS Facility By: Sip
Date: 2/10110 (Rev.) Job #: 60-1214 /
Estimate Volume of Runoff. V
P1,10 = 2.58 in
Storm:
1-hr
10 yr
Location:
Lumberton,
NC
SCS CURVE NUMBER:
Soil Type: Goldsboro
Hydrologic Soil
Group:
B
32%
Faceville
B
24%
Lynchburg
C
14%
Rains
B/D
16%
Lakeland
A
13%
Wagram
A
1%
ID
Area (ac)
CN'
CN x A
Impervious - Roof
1.21
98
118.58
Impervious - Parking lot, Sidewalk
6.05
98
592.90
Pond Area
1.79
98
175.42
Woods, Fair
2.79
60
167.40
Lawn, Good condition
4.42
61
269.62
Future Impervious Area
13.74
98
1346.52
Total
30.00
2670.44
CNarf=
89
`Source: NC Erosion and Sediment Control Planning and Design Manual - Tables 8.03(e) - (g)
S= -10 1000
(P- 0.2 Sy'
Q -
CN
P+0.8 S
S = 1.24 in
Q. = 1.52 in
V=Q*xA=
150618
cf
ID
Area (ac) Imperviousnp. Area (ac)
Impervious - Roof
1.21
100%
1.21
Impervious - Parking lot, Sidewalk
6.05
100%
6.05
Pond Area
1.79
0%
0.00
Wooded, Sparse Ground Litter
2.79
0%
0.00
Lawn, Grass Medians
4.42
0%
0.00
Future Impervious Area
13.74
100%
13.74
Total
30.00
21_00
Time to Peak. T.,:
T �
139 Q
v
SIMPLE METHOD
Rp =
1.0 in
RV.=0.05+0.9*IA
IA=
70%
V=3630*Ru *RV *A
Rv=
0.68 in/in
V =
74052 cf
Tp = 14.6 min

STORMWATER RETENTION CALCULATIONS
Project: Robeson County DSS Facility By: Sip
Date: 2/10/10 (Rev.) Job #: 60-1214
Allowable Discharge (Pre -development Conditions):
Qall = Qpre = Cpre x 110 x A
CPRE =
0.34
I10 =
5.46 cfs
A =
30.00 ac
Qa11 = Qpre =
55.69 cfs
Peak Inflow* =
121.96
cfs
Peak Unrestricted Outflow =
3.05
cfs
Peak Pond Outflow* =
1.27
cfs
Peak Elevation* =
135.97
ft
Top of Pond El. [ft] = 137.00
Peak Storage* =
149732
cf
Storage Avail.[cf] = 152733
Actual
Allowed
cfs
cfs
4.32
<
55.69 OK!
`See Storm Routing on Next Page
OK!
OK!
STORM ROUTING
Pipe (Orifice):
V-Notch:
Input Data:
N
2
Q =
C[tan(0/2)]H112
Qp
123.31 cfs
Cd
0.6
C =
2.5
Tp
15 min
D
4
0 =
0 degrees
AT
2 min
Zi
133.50
0 =
0.0000 radians
Weir:
Invert =
134.00 feet
Ks
43015
Cw
3.0
b
1.38000
L
12.0
ft
Zcr
136.00
ft
TIME
INFLOW
STORAGE
STAGE
ORIFICE
V-NOTCH
WEIR
OUTFLOW
[min]
[cfs]
[ft3]
IN
[cfs]
[cfs]
[cfs]
[cfs]
0
0.00
0
133.50
0
0.00
0.00
0.00
2
5.33
0
133.50
0.00
0.00
0.00
0.00
4
20.40
640
133.55
0.02
0.00
0.00
0.02
6
42.60
3085
133.65
0.10
0.00
0.00
0.10
8
68.10
8186
133.80
0.29
0.00
0.00
0.29
10
92.48
16322
134.00
0.48
0.00
0.00
0.48
12
111.54
27362
134.22
0.62
0.00
0.00
0.62
14
121.96
40672
134.46
0.75
0.00
0.00
0.75
16
121.96
55218
134.70
0.85
0.00
0.00
0.85
18
111.54
69751
134.92
0.94
0.00
0.00
0.94
20
94.56
83022
135.11
1.01
0.00
0.00
1.01
22
79.51
94249
135.27
1.06
0.00
0.00
1.06
24
66.86
103663
135.39
1.10
0.00
0.00
1.10
26
56.22
111554
135.49
1.13
0.00
0.00
1.13
28
47.27
118164
135.58
1.16
0.00
0.00
1.16
30
39.75
123697
135.65
1.18
0.00
0.00
1.18
32
33.42
128325
135.71
1.20
0.00
0.00
1.20
34
28.10
132192
135.76
1.21
0.00
0.00
1.21

STORMWATER RETENTION CALCULATIONS
Project: Robeson County DSS Facility By: Sip
Date: 2/10/10 (Rev.) Job #: 60-1214
36
23.63
135419
135.80
1.22
0.00
0.00
1.22
38
19.87
138108
135.83
1.23
0.00
0.00
1.23
40
16.71
140344
135.86
1.24
0.00
0.00
1.24
42
14.05
142200
135.88
1.25
0.00
0.00
1.25
44
11.81
143737
135.90
1.25
0.00
0.00
1.25
46
9.93
145004
135.91
1.26
0.00
0.00
1.26
48
8.35
146045
135.92
1.26
0.00
0.00
1.26
50
7.02
146896
135.94
1.26
0.00
0.00
1.26
52
5.91
147587
135.94
1.27
0.00
0.00
1.27
54
4.97
148144
135.95
1.27
0.00
0.00
1.27
56
4.18
148588
135.96
1.27
0.00
0.00
1.27
58
3.51
148936
135.96
1.27
0.00
0.00
1.27
60
2.95
149205
135.96
1.27
0.00
0.00
1.27
62
2.48
149407
135.97
1.27
0.00
0.00
1.27
64
2.09
149552
135.97
1.27
0.00
0.00
1.27
66
1.76
149650
135.97
1.27
0.00
0.00
1.27
68
1.48
149708
135.97
1.27
0.00
0.00
1.27
70
1.24
149732
135.97
1.27
0.00
0.00
1.27
72
1.04
149728
135.97
1.27
0.00
0.00
1.27
74
0.88
149701
135.97
1.27
0.00
0.00
1.27
76
0.74
149653
135.97
1.27
0.00
0.00
1.27
78
0.62
149589
135.97
1.27
0.00
0.00
1.27
80
0.52
149511
135.97
1.27
0.00
0.00
1.27
82
0.44
149421
135.97
1.27
0.00
0.00
1.27
84
0.37
149321
135.96
1.27
0.00
0.00
1.27
86
0.31
149212
135.96
1.27
0.00
0.00
1.27
88
0.26
149097
135.96
1.27
0.00
0.00
1.27
90
0.22
148976
135.96
1.27
0.00
0.00
1.27
92
0.18
148850
135.96
1.27
0.00
0.00
1.27
94
0.16
148719
135.96
1.27
0.00
0.00
1.27
96
0.13
148586
135.96
1.27
0.00
0.00
1.27
98
0.11
148449
135.95
1.27
0.00
0.00
1.27
100
0.09
148310
135.95
1.27
0.00
0.00
1.27
102
0.08
148169
135.95
1.27
0.00
0.00
1.27
104
0.07
148026
135.95
1.27
0.00
0.00
1.27
106
0.05
147881
135.95
1.27
0.00
0.00
1.27
108
0.05
147736
135.95
1.27
0.00
0.00
1.27
110
0.04
147590
135.94
1.27
0.00
0.00
1.27
112
0.03
147442
135.94
1.27
0.00
0.00
1.27
114
0.03
147294
135.94
1.27
0.00
0.00
1.27
116
0.02
147146
135.94
1.26
0.00
0.00
1.26
118
0.02
146997
135.94
1.26
0.00
0.00
1.26
120
0.02
146847
135.93
1.26
0.00
0.00
1.26
122
0.01
146698
135.93
1.26
0.00
0.00
1.26
124
0.01
146548
135.93
1.26
0.00
0.00
1.26
126
0.01
146398
135.93
1.26
0.00
0.00
1.26
128
0.01
146247
135.93
1.26
0.00
0.00
1.26
130
0.01
146097
135.93
1.26
0.00
0.00
1.26
132
0.01
145947
135.92
1.26
0.00
0.00
1.26
134
0.00
145796
135.92
1.26
0.00
0.00
1.26
136
0.00
145645
135.92
1.26
0.00
0.00
1.26
138
0.00
145495
135.92
1.26
0.00
0.00
1.26
140
0.00
145344
135.92
1.26
0.00
0.00
1.26

STORMWATER RETENTION CALCULATIONS
Project: Robeson County DSS Facility By: Sip
Date: 2/10/10 (Rev.) Job #: 60-1214
142
0.00
145193
135.91
1.26
0.00
0.00
1.26
144
0.00
145043
135.91
1.26
0.00
0.00
1.26
146
0.00
144892
135.91
1.26
0.00
0.00
1.26
148
0.00
144741
135.91
1.26
0.00
0.00
1.26
150
0.00
144591
135.91
1.26
0.00
0.00
1.26
152
0.00
144440
135.91
1.26
0.00
0.00
1.26
154
0.00
144290
135.90
1.25
0.00
0.00
1.25
156
0.00
144139
135.90
1.25
0.00
0.00
1.25
158
0.00
143989
135.90
1.25
0.00
0.00
1.25
160
0.00
143838
135.90
1.25
0.00
0.00
1.25
162
0.00
143688
135.90
1.25
0.00
0.00
1.25
164
0.00
143538
135.89
1.25
0.00
0.00
1.25
166
0.00
143388
135.89
1.25
0.00
0.00
1.25
168
0.00
143237
135.89
1.25
0.00
0.00
1.25
170
0.00
143087
135.89
1.25
0.00
0.00
1.25
172
0.00
142937
135.89
1.25
0.00
0.00
1.25
174
0.00
142787
135.89
1.25
0.00
0.00
1.25
176
0.00
142637
135.88
1.25
0.00
0.00
1.25
178
0.00
142487
135.88
1.25
0.00
0.00
1.25
180
0.00
142337
135.88
1.25
0.00
0.00
1.25
182
0.00
142188
135.88
1.25
0.00
0.00
1.25
184
0.00
142038
135.88
1.25
0.00
0.00
1.25
186
0.00
141888
135.87
1.25
0.00
0.00
1.25
188
0.00
141739
135.87
1.25
0.00
0.00
1.25
190
0.00
141589
135.87
1.25
0.00
0.00
1.25
192
0.00
141440
135.87
1.25
0.00
0.00
1.25
194
0.00
141290
135.87
1.24
0.00
0.00
1.24
196
0.00
141141
135.87
1.24
0.00
0.00
1.24
198
0.00
140992
135.86
1.24
0.00
0.00
1.24
200
0.00
140842
135.86
1.24
0.00
0.00
1.24
202
0.00
140693
135.86
1.24
0.00
0.00
1.24
204
0.00
140544
135.86
1.24
0.00
0.00
1.24
206
0.00
140395
135.86
1.24
0.00
0.00
1.24
208
0.00
140246
135.85
1.24
0.00
0.00
1.24
210
0.00
140097
135.85
1.24
0.00
0.00
1.24
212
0.00
139948
135.85
1.24
0.00
0.00
1.24
214
0.00
139799
135.85
1.24
0.00
0.00
1.24
216
0.00
139651
135.85
1.24
0.00
0.00
1.24
218
0.00
139502
135.85
1.24
0.00
0.00
1.24
220
0.00
139353
135.84
1.24
0.00
0.00
1.24
222
0.00
139205
135.84
1.24
0.00
0.00
1.24
224
0.00
139056
135.84
1.24
0.00
0.00
1.24
226
0.00
138908
135.84
1.24
0.00
0.00
1.24
228
0.00
138759
135.84
1.24
0.00
0.00
1.24
230
0.00
138611
135.83
1.24
0.00
0.00
1.24
232
0.00
138463
135.83
1.23
0.00
0.00
1.23
234
0.00
138315
135.83
1.23
0.00
0.00
1.23
236
0.00
138167
135.83
1.23
0.00
0.00
1.23
238
0.00
138018
135.83
1.23
0.00
0.00
1.23
240
0.00
137870
135.83
1.23
0.00
0.00
1.23

U.S. Postal Service iM
CERTIFIED Off- 8EGEIPT
�Domtlellya MIMoilD�oearu_osuriwrebslCov_ewrawg,ueJsrproscwomaeeaf
Ce
tewZp�
rr - -
C3 oslopa s 9. 9• D 9
ra
ru Codified Fee
Postmark
un Return Receipt Fee Here
C3 (Endorsement Required)
O Restricted Callum Fee �OlieSOn
(Endorsement Required)
o CC CoUn�j/
rn Total Postage 8 Fees $
r9
ru
� r I AF.Nr Io. ...r.,�..5...... '.! .-I '--�0...... I .. %'..
LYa r/YllV C GT O i3 J�8
■ Complete items 7, 2, and 3. Also complete
Item 4 if Restricted Delivery is desired.
■ Print your name and address on the reverse
so that we can return the card to you.
'Attach this card to the back of the maiipiece,
or on the front if space permits.
1. Article Addressed to:
C"I)IiiV l`! r)I' 12C:t31 ;,1'tirN'
I�'iR Kf:;� \�'INUi.Ea f'L)I!N'1'1' 1I,lii 1(a;R
'It! Ivr )lilli I:I ai S`fRi:i:'"!
LU1. )M N(: S.i?R
2. Article Number
(77ansfer from servke fabaq
PS Form 3811 Febru
A SI ture
u ❑ Agent
M
El. Received by (Printed Name Addressee
C. Date of Delivery
D. Is delivery addrss different from Hem 1 ? ❑Yes
If YES, enter delivery address below: ❑ No
3. Se ce Type
Certifed Mail ❑ Express Mall
❑ Registered ❑ Retum Receipt for Merchandise
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4. Restricted Delivery? (Ew, Fee)
❑ Yes
7006 2150 0005 2109 8419
ary 4." Domestic Return Receipt
102595-02-M-1590

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverlv Eaves Perdue Coleen H. Sullins
Governor Director
September 8, 2009
CERTIFIED MAIL: 7006 2150 0005 2109 8419
RETURN RECEIPT REQUESTED
County of Robeson
Attn: Ken Windley, County Manager
701 North Elm Street
Lumberton, NC 28358
SUBJECT: Post -Construction Stormwater Notification (HQW/ORW)
Robeson County DSS Facility
Robeson County
Dear Mr. Windley:
Dee Freeman
Secret=ry
Our office has received a copy of the Financial Responsibility/Ownership Form (FR/O) from the Division
of Land Resources, Land Quality Section for the Robeson County DSS Facility project to be located in Robeson
County. Based on project location information provided on the FR/O, we have determined that the project is
subject to a State Stormwater Management Permit for development activities within one mile of and draining to
High Quality Waters (HOW).
Please be advised that construction of any built -upon areas prior to issuance of a State
Stormwater Management Permit will be considered a violation of the NC Administrative Codes and could
result in the assessment of civil penalties of up to $25,000 per day, per violation. The State Stormwater
Management Permit is in addition to the NPDES Stormwater General Permit (NCG010000) received for
construction activities. For more information and to obtain the application and applicable supplement forms,
please visit: http://www.ncwaterquality.org/su/state_sw.htm.
If you have any questions concerning this matter, please contact me at [phone].
Sincerely,
Michael Lawyer
Environmental Specialist
Enclosure
cc: Robeson County Zoning & Planning Department, PO Box 1284, Lumberton, NC 28359
FRO -Surface Water Protection
FRO -Land Quality
Location: 225 Green Street. Suite 714, Fayetteville, North Carolina 28301
i''unne. 910-433-33001 FAX: [phone] Customer Service: 1-877-623-6748
'nternet mvv.ncvraterguality.org
One
NOrTl iCaroj l ntt
Alatlllwlly
An NUN O,lporhimd , Anhma[IV n Action Employer

FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
No person may initiate any land -disturbing activity on one or more acres as covered by the Act before_this"-: --
form and an acceptable erosion and sedimentation control plan have been completed and approved by the
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.)
Part A. q
1. Project Name Robeson County DSS Facility Vo
2. Location of land -disturbing activity: County Robeson City or Township Lumberton
Highway/Street SR 1547 (Glen Cowan Road) Latitude 34.628690 N Longitude 79.06444° W
3. Approximate date land -disturbing activity will commence: January 2010
4. Purpose of development (residential, commercial, industrial, institutional, etc.): Commercial
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 30.0 Acres
6. Amount of fee enclosed: $ 1950.00 The application fee of $65.00 per acre (rounded up to
the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $585). s
'p
cc=.
7. Has an erosion and sediment control plan been filed? Yes No Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name Sam Isham E-mail Address sam.isham aa)metconconstruction.net
Telephone [phone] Cell # 910.374.5620 Fax # [phone]
9. Landowner(s) of Record (attach accompanied page to list additional owners):
County of Robeson 910.671.3022 910.671.3010
Name Telephone Fax Number
701 North Elm Street 701 North Elm Street
Current Mailing Address Current Street Address
Lumberton NC 28358 Lumberton NC 28358
City State Zip City State Zip
10. Deed Book No. 1699 Page No. 447 - 450 Provide a copy of the most current deed.
Part B.
Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a
comprehensive list of all responsible parties on an attached sheet):
Countv of Robeson
Name
701 North Elm Street
Current Mailing Address
Lumberton NC 28358
City State Zip
Telephone [phone]
ken.windlev aaco.robeson.nc.us
E-mail Address
701 North Elm Street
Current Street Address
Lumberton NC 28358
City State Zip
Fax Number 910.671.3010

2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name E-mail Address
Current Mailing Address Current Street Address
fl
City State `. Zip. City State
Telephone Fax Number
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
of Registered Agent E-mail
Current Mailing Address Current Street
City Slate Zip City State
Telephone Fax Number
The above information is true and correct to the best of my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there be any change in the information provided herein.
Ken Windley County Manager
Type or print name Title or Authority
7- 3 (--09
Signature Q Date
I, L I j'a' t I l` AM(% , //a Notary Public of the County of gr�� wz�_=
State of North Carolina, hereby certify that appeared
personally before me this day and being duly sworn acknowledge that the above form was
executed by
Witness r"nd and notYfi31 seal, this 3_Lday of 200 1
i pTAt3Y ;
s P PUB\-\G a' 402aarny��
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r, AFC �� •
My commission expires 1 1a a, o�Qt

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