SW8020821_CURRENT PERMIT_20030228

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE-
CP 2-� 8
YYYYMMDD

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Mr. Thomas B. Morris, Sr
First Citizens' Bank
PO Box 27131
Raleigh, NC 27611
Dear Mr. Morris:
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
February 28, 2003
Vice President
Subject: Permit No. SW8 020821
First Citizens Bank Swansboro
Redevelopment and High Density
Stormwater Project
Onslow County
The Wilmington Regional Office received a complete modified Stormwater Management Permit
Application for First Citizens Bank Swansboro on February 20, 2003. Staff review of the plans
and specifications has determined that the project, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 020821
dated February 20, 2003, for the construction of First Citizens Bank Swansboro.
This permit shall be effective from the date of issuance until February 28, 2013, and shall be
subject to the conditions and limitations as specified therein. 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. Please replace sheets C3, C4 and C6 with the enclosed approved sheets.
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, P.O. Drawer 27447, Raleigh, NC 27611-7447. 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
Linda Lewis, or me at [phone].
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:1WQSISTORMWATIPERMIT1020821.FEB03
cc: Brian Michot, P.E.
Town of Swansboro Building Inspections
Division of Coastal Management
Linda Lewis
Wilmington_ Regional Office
Central Files
J DENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

State Stormwater Management Systems
Permit No. SW8 020821
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
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
Mr. Thomas B. Morris
First Citizens Bank Swansboro
Onslow County
FOR THE
construction, operation and maintenance of an infiltration basin 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 Water Quality and considered a part of this
permit.
This permit shall be effective from the date of issuance until February 28, 2013, 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. The infiltration basin has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The stormwater control has
been designed to handle the runoff from 24,272 square feet of impervious area. The
infiltration basin is designed to store and infiltrate the runoff from 3" of rain, therefore a
vegetated filter is not required.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans. -.
4. 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.
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.
2

•
State Stonnwater Management Systems
Pemiit No. SW8 020821
DIVISION
OF WATER QUALITY
PROJECT
DESIGN DATA SHEET
Project Name:
First Citizens Bank Swansboro
Permit Number:
SW8 020821
Location:
Onslow County
Applicant:
Mr. Thomas B. Morris, Sr. Vice President
Mailing Address:
First Citizens' Bank
PO Box 27131
Raleigh, NC 27611
Application Date:,
February 28, 2003
Receiving Stream / River Basin:
White Oak / White Oak River
Index Number:
WOK01 20-(18)
Classification of Water Body:
"SA"
Basin Depth, feet:
2.5
Drainage Area, acres:
0.698
Offsite Area entering Pond, ft2:
2,144 ft2, per engineer
Design Storm:
3"
Total Impervious Surfaces, ft2:
24,272
Bottom Elevation, FMSL:
10.5
Provided Storage Volume, ft3:
6,024
Temporary Storage Elevation, FMSL:
12.17
Outlet Control.
Bypass structure weir set -at 12.17
Type of Soil:
Marvyn
Expected Infiltration Rate:
6 inches per hour
Seasonal High Water Table Elevation:
8.5 FMSL
Time to draw down:
3-5 hours

State Stormwater Management Systems
Permit No. SW8 020821
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in it's 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.
The permittee shall at all times 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.
e. Mowing and revegetation of slopes and the vegetated filter.
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, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. This permit shall
become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
6. Upon completion of construction, prior to issuance of a Certificate 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.
7. 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.
8. The permittee 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, or sale 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. FiIling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
g. Any additional runoff from outside of the approved drainage area (either onsite or
offsite) into the permitted system.
4

State Stormwater Management Systems
Permit No. SW8 020821
9. The pernittee shall submit final site layout and grading plans for any permitted future
areas shoNvn on the approved plans, prior to construction. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
10. A copy ofthe approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
11. Prior to the sale or lease of any portion of the property, the permittee shall notify DWQ
and provide the name, mailing address and phone number of the purchaser or leasee. An
access/maintenance easement to the stormwater facilities shall be granted in favor of the
permittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
12. The permittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the built -upon is directed into the permitted system.
13. 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.
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee',"a' formal permit request must be
submitted to the Division of Water Quality accompanied by an application fee,
documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not be approved. Responsibility for compliance with all permit conditions remains with
the Permittee until such time as the Division approves the formal permit request.
2. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division oMater Quality, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
3. 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) which have jurisdiction.
4. 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.
The permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater
management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The filing of
a request for a permit modification, revocation and reissuance or termination does not
stay any permit condition.
7. 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.
5

State Stor nwater Management Systems
Permit No. SWS 020821
S. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the pen -nit.
9. The permittee shall notify the Division any name, ownership or mailing address changes
within 30 days.
Permit issued this the 28th day of February, 2003.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
I

State Stormwater Management Systems
Permit No. SW8 020821
First Citizens Banc: Swansboro
Stormwater Permit No. SW8 020821
Onslow County
Designer's Certification
as a duly registered
in the State of North Carolina, having been authorized to observe (periodical lylweekly/full time)
the construction of the project,
(Project)
for (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.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
7

State StonriNvater Management Systems
Permit No. SW8 020921
Certification Requirements:
1. The drainage area to the system contains approxiinately 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. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided'on the outlet/bypass structure.
7. All slopes are grassed with pennanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided. -
13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ Regional Office
Town of Swansboro Building Inspections
rr

OFFICE USE ONLY
Date Received
Fee Paid
Permit Number
2— o Z
2-o _ '!:�
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State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied far ilse as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
First Citizens Bank
2. Print Owner/Signing Official's natne and title (person legally responsible for facility and compliance):
Mr._Tbomas B•_Morris, Senior Vice President
3. Mailing Address for person listed in item 2 above:
P.O. Box 27131
City: Raleigh State: NC Zip: 27611
Telephone Number: ( 919 ) 716-4030
4. Project Name (subdivision, facility, or establishment narne - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
First Citizens Bank - Swansboro, NC
5. Location of Project (street address):
US Highway 24
City: Swansboro. County: Onslow
6. Directions to project (from nearest major intersection):
Northwest quadrant of US Hwy 24 & Elm Street
7. Latitr.rde: 34 °_ 41 ` 17" N Longitude: 770 07' 07" W
8. Contact person who can answer questions aborit the project:
Name: Peter A. Bishop,P.E. Telephone Number. ( 919
II. PERMIT INFORMATION:
I. Specify whether project is (check one): X New Renewal
of project
677-2000
Modification
Form SWU-101 Version 3.99 Page I of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
3. Specify the type of project (check one):
Low Density High Density X Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major X Sedimentation/Erosion Control 404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748,
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater will be treated with an infiltration basin designed to NCDENR
Standards and designed to meet 85% TSS removed.
2. Stormwater runoff from this project drains to the White Oak River basin.
3. Total Project Area: 1.225 acres 4. Project Built Upon Area: 47.5 %
5. How many drainage areas does the project have? 2
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Bas>nlInfarmation ;�
Drainage Area"1 ' ,3�'' `,�
hif.
y;� Drainage Area 2IN
Receiving Stream Name
White Oak Rivery
White Oak River
Receiving Stream Class
SA
SA
Drainage Area
30,396 sf
4884 sf
Existing Impervious* Area
Proposed Impervious*Area
24,272 sf
4884 sf
% Impervious* Area (total)
Impervious ;ISurfaceArea ',' P
Drama e Area
„ $
Drainage Area 2 I �..,
On -site Buildings
6-100 sf
On -site Streets
_
_
On -site Parking
15,465 sf
2775 sf
On -site Sidewalks
563 sf
465 sf
Other on -site
—
—
Off -site
2,144 sf
1,644 s f
Total: 24,272
Total: 4884 sf
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

7. How was the off -site impervious area listed above derived? N/A
IV_ DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
SWMM821 as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
2. No more than square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
I. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
• Original and one copy of the Stortnwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
Initials
d7r/M
,3 rro 7
87;"
0 n!
r^1
Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
Drainage areas delineated
- Vegetated buffers (where required)
V1I. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firrn): Kimley-Horn & Associates, Inc.
Mailing Address: P.O. Box 33068
City: Raleigh State: NC Zip:
Phone: ( 919 ) 677-2000
VIII. APPLICANT'S CERTIFICATION
Fax: ( 919 ) 677-2050
27636
(print or type name of person listed in General Information, item 2) 7K 1� 4�). 1 40+4i-
certify that the information included on this hermit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the regiiirements of 15A
NCAC 2H . 000. J? t
Signature:
Date: Z•O 01-
form SWU-101 Version 3.99 Page 4 of 4

r' � .,.
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Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an originI
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : First Citizens Bank - Swansboro, NC
Contact Person: Peter A. Bisho P.E. Phone Number: (919 ) 677-2000
This worksheet applies to: Basin No. 1 in Drainage Area 1
(as identified on plans) (from Form SWU-101)
Il. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type Marvyn Series
Infiltration Rate 6.o in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 8 5 fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm inch (1.5 inch event for SA waters, 1 inch event for others)
Design Volume S 8 L c.f.
Drawdown Time n _13g days
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
_ 'As n ft. x 15 8_ 53 ft. = gbnn ^—sq. ft. (bottom dimensions)
6024 c.f.
10.5_ - fmsl
12.17 fmSI
13 _0 fmSl
Form SWU-t03 Rev 3.99 Page t of 3

III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
B✓M a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
���'► b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material or DW2 a provai has been obtained.
n
'�f BEM f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the ppearest public ri ht-of-way.
�Jf Q/rELI.rI-A2l At<2AI, A6A fA$S-_ F•�TJ/Vo,�v�✓ pw®lA—I. To 616 J?A AA0 1WXO Vft
Xr^ g. Drainage area for the device is less than 5 acres. h/ Awl
ABM h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
av""r i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
13V- t j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
ac S+ AE SLpogt' fnz 8osa••• Aa E 6W rg5A A-T ?:1
&Tn I. A pretreatment device such as a catch basin, grease trap, filter strip, grassed Swale or
sediment trap is provided.
Ag-,-+ m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
.yx** &7,*1 n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
Mlength
4 m *t sS, r45 KE°s7� ewaters,
7 - J S'OW &C-L o PH °�� u.�1ers
✓E6e rmw F1 e 7-ew
87;01 o. Flow distribution mechanism within the basin is provided.
a Se+ p. A benchmark is provided to determine the sediment accumulation in the pretreatment device.
q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
R�Ti�t r. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
B7M s. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Rev 3.99 Page 2 of 3

1V. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored to the
original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed. Removed
sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will
adversely impact water quality (i.e. stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads 0.4 feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. if the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
1 acknowledge and agree by my signature below that I am responsible for the performance of the five
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.
Print Name and Title: Thomas B. Morris, Senior Vice President
Address: 16 Rowan Street, Raleigh, NC 27609
Phone: [phone] t Date: 14946 -I_
Signature:
Note: The legally responsible party should not be a homeowners association Curless more than 50% of the lots have been sold turd a
refsidew of the subdivision has been named the president. /] I �t
1, �..)R adG��Q U P Nt e lS eC1 a Notary Public for the State of //©/ a (74fol, n6f , County of
%Gt k e do hereby certify that personally appeared before me this 12L)
day of .S tea, and acknowledge the due execution of the forgoing infiltration basin maintenance requirements.
Witltess r�}dWti ShU1g1,ficial seal,
Div, ,...• �� . I i�i
227
S QUAY My commission expires 3
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