SW7090903_CURRENT PERMIT_20210414

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW JIQL
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYM M DD

LJA N°
ROY COOPER
Governor
DIONNE DELLI-GATTI
Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
April 14, 2021
State Employees' Credit Union
Attention: Jonathan Crane, SVP. Facilities Services
P.O. Box 26807
Raleigh, NC 27611
Subject: Stormwater Permit No. SW7090903 Renewal
SECU — Camden, NC
High Density Project
Camden County
Dear Mr. Crane:
The Washington Regional Office received a Stormwater Management Permit
Application for renewal of the subject permit on March 19, 2021. Staff review of the
application has determined that the permit can be reissued. We are forwarding Permit
No. SW7090903 dated April 14, 2021, for the continued operation of the existing
stormwater system.
This permit, upon its effective date, will replace all previous State Stormwater permits for
this project. This permit shall be effective from December 31, 2021 until December 30,
2029 and shall be subject to the conditions and limitations as specified therein, and does
not supercede any other agency permit that may be required. Please pay special attention
to the Operation and Maintenance requirements in this permit. Failure to establish an
adequate system for operation and maintenance of the stormwater management system
will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you
have the right to request an adjudicatory hearing upon written request within thirty (30)
days following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714.
Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact me at [phone].
MAN
Sincerely,
Roger K. Thorpe
Environmental Engineer
North Carolina Department of Environmental Quality I Division of Energy. Mineral and Lind Resources
Washington Regional Office 1 943 Washington Square Mall I Washington. North Carolina 27889
252.946,6481

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules and Regulations
PERMISSION IS HEREBY GRANTED TO
State Employees' Credit Union
SECU - Camden
Located at 101 Rosabelle Ct., Camden, NC
Camden County
FOR THE
construction, operation and maintenance of a wet detention pond system in compliance
with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater
rules') and the approved stormwater management plans and specifications and other
supporting data as attached and on file with and approved by the Division of Energy,
Mineral, and Land Resources (Division) and considered a part of this permit.
This permit shall be effective from December 31, 2021 until December 30, 2029, and
shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.7 of this permit. The stormwater control has been
designed to handle the runoff from 1.04 acres of impervious area.
3. The tract will be limited to the amount of built -upon area indicated in Section 1.7
of this permit, and per approved plans.
All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
North Carolina Depart in of Environmental Quality I Division of Energy, Mineral and Land Resources
Washington Regional Office 1943 Washington Square Mall I Washington. North Carolina 27889
252.946.6481

5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
6. The built -upon areas associated with this project shall be located at least 50 feet
landward of all perennial and intermittent surface waters.
7. The following design criteria have been provided in the wet pond system and
must be maintained at design condition:
a. Total Site Area, ac.: 3.0
b. Total Impervious Surfaces, ac.: 1.04
C. Design Storm, inches: 1.5
d. TSS removal efficiency, %: 90
e. Required Surface Area, ftz: 4,010
f. Basin Depth, ft.: 6.5
g. Permitted Surface Area, ftz: 9,785
h. Required Storage Volume, ftz: 6,294
i. Permitted Storage Volume, ft3: 13,091
j. Controlling Orifice: 2.0" 0 pipe
k. Receiving Stream/River Basin: Sawyers Ck. / Pasquotank
I. Classification of Water Body: "C; Sw"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all time provide the operation and maintenance necessary
to assure the permitted stormwater system functions at optimum efficiency. The
approved Operation and Maintenance Plan must be followed in its entirety and
maintenance must occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of slopes and the vegetated filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, level
spreader, filter strip, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted SCM. The
records will indicate the date, activity, name of person performing the work and
what actions were taken.
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North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889
252.946,6481

5. The permittee shall submit to the Division, an annual summary report of the
maintenance inspection records for each SCM. The report shall summarize the
inspection dates, results of the inspections, and the maintenance work performed
at each inspection.
Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
7. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
8. Upon completion of construction, prior to issuance of a e,,cate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
9. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
10. The peririittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
11. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
North Carolina Deparuncut of Environmental Qua lit y I Division of Erna gy. Mineral and Land Resom'ces
Washington Regional Office 1 943 Washington Square Mall I Washington. North Carolina 27889
-air CncM N"
252.946.6481

12. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
13. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
H. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a completed Name/Ownership Change form, to the Division, signed by
both parties, and accompanied by supporting documentation as listed on page 2
of the form. The project must be in good standing with the Division. The approval
of this request will be considered on its merits and may or may not be approved.
The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
6. The permittee grants DEQ Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
��� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Washington Regional Office 1 9,13 Washington Square Mall I Was'hingi on. North Caiolina 27889
252946.6481

10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Title 15A NCAC
2H.1000, and NCGS 143-215.1 et.al.
11. The permittee shall notify the Division of any name, ownership or mailing address
changes at least 30 days prior to making such changes.
12. This permit shall be effective from December 31, 2021 until December 30,
2029. Application for permit renewal shall be submitted 180 days prior to the
expiration date of this permit and must be accompanied by the processing fee.
Permit issued this the 14 th day of April 2021
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A-/, all(
For
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW7090903
North Carolina Department of Environmental Quality I Division of Encrgy, Mineral and Land licsources
Washington Regional Office 1943 Washington Square Mall I Washington, North Carolina 27889
252.946.6481

MR
'Credit Union
Facilities Services
March 8, 2021
NC Department of Environmental Quality rl
D
943 Washington Square Mall MAR 19 NZI
Washington, NC 27889
To Whom It May Concern:
Enclosed is the Stormwater Permit Renewal Application Permit Number SW7O9O9O3 for the
SCM located at:
SECU
101 Rosabelle Ct
Camden, NC 27921
A Cashiers Check is also enclosed in the amount of $505.00 for the renewal.
Please let me know if you need any additional information.
Sincerely,
John F. Elliott
SECU Facilities Management
919-839-8011
ielliott ,ncsecu.org
SCM Inspection and Maintenance Certification #3025
NC STATE
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4401 Creedmoor Road • P.O. Box 26807 • Raleigh, NC 27611-6807 • 919-856-3340
"Equal EmploymenNAfrmative Action Employer, M/F/Disability/Veteran"

DEMLR USE ONLY
Date Received
Fee Paid
Permit Number
rE� 3I a- I
V a
i 5t,, 9 olyr, o
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only. H�o
A. PROJECT INFORMATION MAR 19 20,21 �s
1. State Stormwater Permit Number:
2. Project name:
3. Project street address: 101 ROSABELLE CT
City: CAMDEN County: CAMDEN ZIP:
27921
4. What, if any, changes have been made to the project as permitted? NONE
If the project has changed from the original approved plans, please complete SWU-101 fora Major
Modification or Minor Modification Application form available at https //deg.nc.gov/about/divisions/energv-
mi neral-land-resources/energy-mineral-land-rules/stormwater-grogram/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https://deg.nc.gov/about/divisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: STATE EMPLOYEES' CREDIT UNION
2. Signing Official's Name: JONATHAN CRANE
3. Signing Official's Title: SVP, FACILITIES SERVICES
4. Mailing Address: P.O. BOX 26807
City: RALEIGH State: NC ZIP : 27611
5. Street Address: 4401 CREEDMOOR ROAD
City: RALEIGH State: NC ZIP : 27612
6. Phone: [phone] Email: FACILITIESSERVICES(o)NCSECU.ORG
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
JC 1. A permit application processing fee of $505.00 payable to NCDEQ.
JC 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
JC 3. One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
JC 4. O&M Agreements, Please select one:
❑ I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
® I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
JC 5. Designer Certifications, Please select one:
® A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
ElA copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
N/A' 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
N/A 7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide
one hard copy and one electronic copy of documentation from the NC Secretary of State, or other
official documentation, which supports the titles and positions held by the persons listed in Section
C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosnc.gov/online services/search/by title/ Business Registration
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTEE'S CERTIFICATION
I, J Q. ATHAi./ � K A,/£ the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my
knowledge, correct and complete.
Signature: Date: 03 al a I
NOTARIZATION
I, .S o 3EPN 4324 D>Lt - , a Notary Public for the State of
Non rN CA?o s ✓ n County of L-J A ke do hereby certify
that , a sx a CrZA' r personally appeared before me
this the �5 — day of N(A,2CH , 20 Z and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal)
Notary Signature:
My commission expires
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

Permit No.
(to be provided by DWD)
R
NCDENR
Project name
Contact person
Phone number
Date
Drainage area number
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 111) must be printed, filled out and submitted along with all of the required information.
Ft
WA7E-,q
� C
s
II. DESIGN INFORMATION
Site Characteristics
Drainage area
80,203 flz
Impervious area, post -development
45,364 gr
% impervious
56.56 %
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5" mnoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the prelpost control of the lyr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 1011 vegetated shelf elevation
Bottom of 1 Oft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stared above the state -required temp. pool?
Elevation of the top of the additional volume
6,294 ft3
13,091 ft3
fl3
Its
Its
g ft3
ft3
OK
OK, volume provided is equal to or in excess of volume required.
N (Y or N)
3.4 in
0.30 (uni8ess)
0.60 limitless)
3.40 inlhr OK
1.00 ft"/sec
3.76 ft3/sec
1.88 h3lsnc
4.60 fmsl
3.50 fmsl
3.50 fmsl
4.00 fmsl
3.00 fmsl
-3.00 fmsl
-4.00 fmsl
1.00 it
y (Y or N)
4.6 fmsl OK
18550
sFgN c.
�)111; 111111111��
Form SW401-Wei Detention Basin.Rev.5 Parts I. a II. Design Summery, Page 1 of 2

Permit No.
(to be provided by DWO)
II. DESIGN INFORMATION _ _ --
Surface Areas
Area, temporary pool
Area REQUIRED, permanent pool
SAIDA ratio
Area PROVIDED, permanent pool, A..
Area, bottom of 1011 vegetated shelf, A.,,,,,
Area, sediment cleanout, top elevation (bottom of pond), A,,,.
Volumes
Volume, temporary pool
Volume, permanent pool, V,_,,
Volume, forebay (sum of forebays if more than one forebay)
Forebay % of permanent pool volume
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, V..
Area provided, permanent pool, Ap„a.
Average depth calculated
Average depth used in SAIDA, d„, (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, A._.
Area, bottom of 10ft vegetated shelf, A.
13,110 ft'
4,010 ft
5.00 (uniUess)
9,785 ft2 OK
7,367 fit
1,004 ft2
13,09103 OK
26,940 ft'
5,519 fit'
20.5% % OK
90 %
Y (Y or N)
N (Y or N)
5.00 limitless)
N (Y or N)
ftI
tt2
it
it
Y (Y or N)
9,785 ft2
7,367 ft
Area, sediment cleanout, top elevation (bottom of pond), A.,
1,004 fit
'Depth' (distance blw bottom of 1 Oft shelf and top of sediment)
6.00 it
Average depth calculated
3.84 It
Average depth used in SAIDA, da„ (Round to nearest 0.5ft)
4.0 It
Drawdown Calculations
Drawdown through orifice?
Y
(Y or N)
Diameter of orifice (if circular)
2.00 in
Area of entice (if -non -circular)
in
Coefficient of discharge (Co)
0.60 limitless)
Driving head (Ha)
0.37 ft
Drawdown through weir?
N
(Y or N)
Weir type
limitless)
Coefficient of discharge (Ca,)
(uniUess)
Length of weir (L)
it
Driving head (H)
ft
Pre -development 1-yr, 24-hr peak flow
1.88 ft'Isec
Post -development 1-yr, 24-hr peak flow
3.76 ft'/sec
Storage volume discharge rate (through discharge orifice or weir)
0.06 ft'/sec
Storage volume drawdown time
2.38 days
Additional Information
Vegetated side slopes
3 :1
Vegetated shelf slope
10 :1
Vegetated shelf width
10.0 it
Length of flowpath to width ratio
3 :1
Length to width ratio
3.0 :1
Trash rack for overflow 8 onfice?
Y
(Y or N)
Freeboard provided
1.2 ft
Vegetated filter provided?
N
(Y or N)
Recorded drainage easement provided?
N
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Drain mechanism for maintenance or emergencies
pump out
OK
OK
OK
OK
OK
OK
Insufficient pre -development peak flow.
OK
OK, draws down in 2-5 days.
OK, drawdown time is coned.
OK
OK
OK
OK
OK
OK
OK
OK
Insufficient. Recorded drainage easement required.
OK
Form SW401-Wet Detention Basin-Rev.5 Parts I. a It. Design Summery, Page 2 of 2

Permit
(to be provided by DWD)
Ilf. REQUIRED ITEMS .CHECKLIST<
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Ifniitiialls,
Sheet No.
wr (_
C1201,C5102
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
1 '
�(AM
C5102,1_1301
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
- Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
- Vegetation specification for planting shelf, and
- Filter strip.
C5102
3. Section view of the wet detention basin (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
C1201
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
attached
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided.
_
C1201
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
attached
7. The supporting calculations.
K141
attached
8. A copy of the signed and notarized operation and maintenance (O&M) agreement.
kn/a
9. A copy of the deed restrictions (if required).
I d 1 attached 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.5 Part III. Required Items Checklist, Page 1 of 1

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash debris is present.
Remove the trash debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page I of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 6.50 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 3.50 feet in the forebay, the sediment
shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Sediment Removal a. 0_0 Pe maven Pool
Elevatio
Form SW401-Wet Detention Basin O&M-Rev.4
-------------- -- Volume
Bottom
Permanent Pool Elevation 3.5
Sediment Removal Elevation -3.0
Volume
-I.0 -ft Min. --------------------------------------------
------
Sediment Bottom Elevation 4.0
I-ft n
Storage
Sedimec
Storage
FOREBAY MAIN POND
Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: State Emplovees' Crcdit Union - Camden Office
BMP drainage areo number: I
Print
Title:Sr. SmeetriiiY VP
Address:P.O. Box 26297
s
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, 2 i - 6V�Vy �/�l Q U �� a Notary Public for the State of
N C County of Vda K e— do hereby certify that
HLtVln S personally appeared before me this
day of !ti to -k- ���Q , and acknowledge the due execution of the
forgoing wct detention basin maintenance requirements. Witness Illy hand and official
seal, CD
��� p7ARE
IZ YJO%A
SEAL
-`L44-L
My commission expires_ DV • 19, Oho l a
A,, ,��
Ail n W eaOLr-
Form SW401-Wet Detention Basin O&M-Rev.4 Pace 4 Of 4

�1
5vj o� n

,r
Page 8 of 9
Stormwater Permit No. SW7090903
SECU - Camden, NC
Wet Detention Pond System
Camden County
Designer's Certification
I, Sean C. Robey , as a duly registered
Professional Engine in the State of North Carolina, having been
authorized to observe (periodically/ weekly/ full time) the construction of the
project,
State Employees' Credit Union in Camden
(Project)
forstate Employees' Credit Union (Project Owner) hereby state that,
to the best of my abilities, due care and diligence was used in the observation of
the project construction such that the construction was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Note: The checklist on the following page must be included with this
Certification. Any changes or deviations from the approved plans and
specifications must be explained in detail, and may require a permit modification.
The certification forms should be submitted to the Division of Water Quality at the
appropriate Regional office.
Signature
Registration Number /d'SSU
Date //-/d;-Loio
SEAL
\J\\\ 011 \pI CAgp�%i
FESSi0'•. 9
SEAL _
ess0 _=

Page 9 of 9
Complete this checklist for each system and include with
Certification:
✓ 1. The drainage area to the system contains approximately the
permitted acreage.
✓ 2. The drainage area to the system contains no more than the
permitted amount of built -upon area.
✓ 3. All the built -upon area associated with the project is graded such
that the runoff drains to the system.
✓ 4. All roof drains are located such that the runoff is directed into the
system.
✓ 5. The bypass structure elevations are per the approved plan.
✓ 6. The bypass structure is located per the approved plans.
✓ 7. A Trash Rack is provided on the outlet/bypass structure.
8.
All slopes are grassed with permanent vegetation.
�9.
Vegetated slopes are no steeper than 3:1.
✓ 10.
The inlets are located per the approved plans and do not cause
short-circuiting of the system.
✓ 11.
The permitted amounts of surface area and/or volume have been
provided.
�12.
All required design depths are provided.
✓ 13.
All required parts of the system are provided.
V/1' 14.
The required system dimensions are provided per the approved
plans.
* The site has been seeded and mulched but
some areas have not germinated fully. Pond
plants have not been installed based on the
date of completion of the pond. The pond
plant8swill be installed in the spring.

November 16, 2010
Mr. Bill Moore
Dept. of Environment and Natural Resources
Water Quality Section
943 Washington Square Mall
Washington, NC 27889
Subject: Stormwater Management Permit
SECU - Camden
Proj. #080420
Stormwater Permit No. SW7090903
Dear Mr. Moore:
HYMAN
ROBEY-0
NOV 1 d ''2010
I)V;fr j-VV`ARQ
Enclosed please find the Designer's Certification for the above referenced project.
Please note that the pond was surveyed and inspected for dimensional and elevation accuracy
and found to comply with the design. The site has been seeded, mulched and landscaped, but
some of the pond slopes are not fully vegetated. As the pond was completed after the
acceptable date for planting of the vegetated shelf, the wetland plants will be installed in the
spring.
If you have any questions or require additional information, please do not hesitate to call this
office at [phone].
Sincerely,
Kimberly D. Hamby
Sr. Project Manager
cc: file
Mr. Dave Kaiser, O'Brien Atkins
Mr. Dave Parks, Camden County Planning Department
P. O. Box 339 Camden, North Carolina 27921
[phone] License C-0598
w .hymanrobey.com