SW8050405_CURRENT PERMIT_20050429

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
Its' CURRENT PERMIT
C
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

�pF WATF9Q Michael F. Easley, Governor
p G William G. Ross, Jr., Secretary
rn -7 North Carolina Department of Environment and Natural Resources
>_
Alan W. Klimek, P.E. Director
Division of Water Quality
Mr. Jon T. Vincent, Member Manager April 29, 2005
Brunswick Properties, LLC
1508 Military Cutoff Road, Suite 302
Wilmington, NC 28403
Subject: Stormwater Permit No. SW8 050405
Laurel Woods
High Density Subdivision Project
New Hanover County
Dear Mr. Vincent:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Laurel Woods on April 29, 2005, 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 050405, dated April 29,
2005, for the construction of the subject project.
This permit shall be effective from the date of issuance until April 29, 2015, 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.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request do 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 Paul Bartlett, or me at [phone].
Sincerely,
Ed Beck
Acting Regional Supervisor
Surface Water Protection Section
ENBlptb: S:IWQSISTORMWATERIPERMIT1050405
CC' Tripp Engineering, P.C.
Tony Roberts, New Hanover County Inspections
City of Wilmington Stormwater Services
Beth E': Wetherill, New Hanover County Engineering
Division of Coastal Management
Paul T. Bartlett, P.E.
Wilmington Regional Office
Central Filps
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone {910) 395-390C Customer Service1-877-623-6748
Wilmington Regional Office Wilmington, NC 28405-3845 FAX [phone] Internet h2o.enr.state.nc.us One
NorthCarolina
An Equal Opportunity/Affirmatsve Action Employer — 50% Recycledli0% Post Consumer Paper Alaturally

State Stormwater Management Systems
Permit No. SW8 050405
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
Jon T. Vincent and Brunswick Properties, LLC
Laurel Woods
New Hanover 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 April 29, 2015 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 1.5 on page 3 of this permit. The subdivision is
permitted for 33 lots, each allowed 4,000 square feet of built -upon area.
3. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
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.
Page 2 of 8

State Stormwater Management Systems
Permit No. SW8 050405
5. The following design elements have been permitted for this infiltration basin
stormwater facility, and must be provided in the system at all times.
a. Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
b. Total Impervious Surfaces, ft2:
33 Lots at 4,000 per lot, ft2:
Roads/Parking, ft2:
Sidewalks, ft2:
Offsite, ft2:
C. Basin Depth, feet:
d. Design Storm:
e. Bottom Elevation, FMSL:
f Permitted Surface Area @Bottom, ft2:
g Permitted Storage Volume, ft3:
h. Storage/Bypass Elevation, FMSL:
Type of Soil:
Expected Infiltration Rate, inlhr:
k. Time to Draw Down, hours:
m. Receiving Stream 1 River Basin
n. Stream Index Number:
o. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
7.79
339,332.4
none
160,283
132,000
25,415
2,868
none
2.5
3.0"
34.0
18,135
51,420
36.5
Medium Yellow Sandy Loam
6.0
5.0
Smith Creek I Cape Fear
18-74-63
"C. Sw"
1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature
(such as swales) shown on the approved plans as part of the stormwater
management system without submitting a revision to the permit and receiving
approval from the Division.
2. The permittee is responsible for verifying that the proposed built -upon area for
the entire' lot, including driveways and sidewalks, does not exceed the allowable
built -upon area. Once the lot transfer is complete, the built -upon area may not be
revised without approval from the Division of Water Quality, and responsibility for
meeting the built -upon area limit is transferred to the individual property owner.
3. 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.
Page 3of8

State Stormwater Management Systems
Permit No. SW8 050405
4. 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 the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, 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.
5. The Director may determine that other revisions to the project should require a
modification to the permit.
6. 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.
7. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately. Infiltration systems should not be used
as erosion control devices, due to the potential clogging. 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. 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.
9. The permittee shall at all times provide the operation and maintenance
necessary to assure that all components of the permitted stormwater system
function 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 revegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of structures, orifice, catch basins and
piping.
g. Access to all components of the system must be available at all times.
10. 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.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW8 050405
11. Permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
12. Prior transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel. The facility must be in compliance with all permit conditions. Any
items not in compliance must be repaired or replaced to design condition prior to
the transfer. Records of maintenance activities performed to date will be
required.
13. Prior to the sale of any lot, the following deed restrictions must be recorded:
a. The following covenants are intended to ensure ongoing compliance with
State Stormwater Management Permit Number SW8 050405, as issued
by the Division of Water Quality under NCAC 2H.1000.
b. The State of North Carolina is made a beneficiary of these covenants to
the extent necessary to maintain compliance with the Stormwater
Management Permit.
C. These covenants are to run with the land and be binding on all persons
and parties claiming under them.
d. The covenants pertaining to stormwater may not be altered or rescinded
without the express written consent of the State of North Carolina, Division
of Water Quality.
e. Alteration of the drainage as shown on the approved plans may not take
place without the concurrence of the Division of Water Quality.
f. The maximum built -upon area per lot is 4,000 square feet. This allotted
amount includes any built -upon area constructed within the lot property
boundaries, and that portion of the right-of-way between the front lot line
and the edge of the pavement. Built upon area includes, but is not limited
to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and
parking areas, but does not include raised, open wood decking, or the
water surface of swimming pools.
g. Lots within CAMA's Area of Environmental Concern may be subject to a
reduction in their allowable built -upon area due to CAMA regulations.
h. All runoff on the lot must drain into the permitted system. This may be
accomplished through providing roof drain gutters which drain to the
street, grading the lot to drain toward the street, or grading perimeter
swafes and directing them into the pond or street. Lots that will naturally
drain into the system are not required to provide these measures.
i. Built -upon area in excess of the permitted amount will require a permit
modification.
14. A copy of the recorded deed restrictions must be submitted to the Division within
30 days of the date of recording the plat, and prior to selling lots. The recorded
copy must contain all of the statements above, the signature of the Permittee, the
deed book number and page, and the stamp/signature of the Register of Deeds.
15. 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.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW8 050405
16. Built upon area includes, but is not limited to, structures, asphalt, concrete,
gravel, brick, stone, slate, coquina and parking areas, but does not include
raised, open wood decking, or the water surface of swimming pools.
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event there is either a desire for the facilities to
change ownership, or there is a name change of the Permittee, a
"Name/Ownership Change Form" must be submitted to the Division of Water
Quality accompanied by appropriate documentation from the parties involved.
This may include, but is not limited to, a deed of trust, recorded deed restrictions,
Designer's Certification and a signed Operation and Maintenance plan. The
project must be in good standing with DWQ. The approval of this request will be
considered on its merits and may or may not be approved.
2. The permittee is responsible for compliance with all of the terms and conditions
of this permit until such time as the Director 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 of Water Quality, 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) which have 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 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. Permittee grants permission to staff of the DWQ to access the property for the
purposes of inspecting the stormwater facilities during normal business hours.
8. The permittee shall notify the Division of any name, ownership or mailing address
changes within 30 days.
9. A copy of the 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.
Permit issued this the 29th day of April 2005.
ra
NORTH-CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6of8

State Stormwater Management Systems
Permit No. SW8 050405
Laurel Woods Page 1 of 2
Stormwater Permit No. SW8 050405
New Hanover County
Designer's Certification
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/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 are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No. SW8 050405
Certification Requirements: Page 2 of 2
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 outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. 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. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter.
15. The required dimensions of the system are provided, per the approved
plan.
cc: NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building inspections
Page 8 of 8

r'-
W.
Date Received
Fee Paid
Permit Number
I zoo f V,00• 0-0
1 51,,17 o
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 use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Brunswick Pro rties LLC
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Jon T. Vincent Member Manuer
3. Mailing Address for person listed in item 2 above:
1508 Military Cutoff Road, Suite 302
City: Wilmington State: NC Zip: 28403
Telephone Number: 910-256-0101
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
_Laurel Woods
5. Location of Project (street address):
5807 Mum3 ville Road
City: Wilmington County: New Hanover
6. Directions to project (from nearest major intersection):
Travel east from the intersection of Murrayyille Road and Hw lY 32 approximately 2,000 If Site is on
7. Latitude : N 340 17' 30" Longitude: W 77" 52' 00" of project
8. Contact person who can answer questions about the project:
Name: Phillip TrippTelephone Number: 910-763-5100
IL PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4

14,
r"r: ,. ii '. ''1�• ... -�....•5' k.:a��.. '4•. �fi 'i i�. _i ;Ia ,.. r'l'
r W.. ..F qS .� h i4� it

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 X High Density 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.
on -site open infiltration basin to meet the State's I" and New Hanover Coupty s 25 year pre -post
requirement
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: 7.79 acres 4. Project Built Upon Area: 47.2 %.
5. How many drainage basins does the project have? 1
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.
Basin Information
Drainage Basin 1,,:.
Drainage Basin 2
Receiving Stream Name
Smith Creek
Receiving Stream Class
C-SW
Drainage Basin Area
7.79
Existing Impervious * Area
-
Proposed Impervious * Area
3.68 ac
% Impervious* Area (total)
47.2%
Impervious * Surface, Area
a Drainage;Basin 1
Drainage Basin 2
On -site Buildings(33 tots cr 4,000st)
132,000 sf
On -site Streets
25,415 sf
On -site Parking
-
On -site Sidewalks
2,868 sf
Other on -site
-
Off -site
-
Total:
E= 160,283 sf
Z=
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking
areas sideivalks, gravel areas, etc.
Form S W U-101 Version 3.99 Page 2 of 4

How was the off -site impervious area listed above derived?
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.
The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number 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 4 000 square feet of any lot shall be covered by structures of impervious materials.
Impervious materials include asphalt, gravel, concrete, briar 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.
S. All permitted runofffrom 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 thesystem 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

Vl. SUBMITTAL REQUIREMENTS
Only complete application packages will he 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.
1. Please indicate that you have provided the following required information by initialing in the space
provided next to each item.
Applicant's Initials
• Original and one copy of the Stormwater Management Permit Application Form Lt,
• One copy of the applicable Supplement Form(s) for each BMP i7y.
• Permit application processing fee of $420 (payable to NCDENR) (dl L
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including: L
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number and date
- 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)
VII. 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 firm): Tri En ineerin P.C.
Mailing Address: 419 Chestnut Street
City: Wiimin ton State: NC Zip: 28401
Phone: [phone] l00 Fax: [phone]
VHI. APPLICANT'S CERTIFICATION
1, (print or type name of pe
certify that the information
that the project will be con:
and protective c venants w
NCAC 2H. 1000
Signature:
son listed 1 General Information, iten7 2) Jon T. Vincent ,
ncluded o this permit application form is, to the best of my knowledge, correct and
Sucted in onformance with the approved plans, that the required deed restrictions
11 be ree rded, and that the proposed project complies with the requirements of 15A
tC Date: S Z Z
Form SWU-101 —Version 3.99 Page 4 of

Permit No,9aZ andyo a"'-
(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 original
DWQ 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: Laurel Woods
Contact Person: Charles Cazier Phone Number: (910 )�763-5100
This worksheet applies to : Basin No. 1 in Drainage Area 1
(as identified on plans) (from Form SIVU-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 Med Yellow Sandy Loam
Infiltration Rate 6 mlhr or eflhrlsf (circle appropriate units)
SHWT Elevation 31.0 fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm _ 3.0� inch (1.5 inch evenifor SA waters, I inch event for others)
Design Volume 40 305 c.f.
Drawdown Time 5.0 &ys hours
Basin Dimensions
Basin Size _ 98 ft. x 185 ft. = 18,135 sq. ft. (bottom dimensions)
Basin Volume Provided 51,420 c.f
Basin Elevations
Bottom Elevation 34.0 fmsl
Storage Elevation 36.5 fmsl
Top Elevation 37.0 fmsl
Form SWU-103 Rev 3.99 Pagel of 3

Ill. 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 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
f= a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
JL9_ b. System is located at least 100 feet from water supply wells.
JUL c. Bottom of system is at least 2 feet above the seasonal high water table.
J-LV- d. Bottom of system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material or DWQ approval has been obtained
)LE f
System is located in a recorded drainage casement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
Af_ g.
Drainage area for the device is less than 5 acres.
_RL h..
Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
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.
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.
L k.
All side slopes stabilized with vegetated cover are no steeper than 3:1(H:V).2:1 & sodded
�( 1.
A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
T 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.
2 n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
o.
Flow distribution mechanism within basin is provided.
p.
A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
q.
Runoff in excess of design volume bypasses off-line systems (bypass detail provided).
_
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.
s.
Plans ensure that the installed system sill 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

IV. 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, grass cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetative 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 0.75 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.
I 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'yresponsible party.
Print Name and Title: I Jon T. Vincnent. Member Manaaer
Addres811),
9 Milit Cutoff Road Suite 302 Wilmin ton NC 28403
Phone: 1 Date: 31 ?�1
SignatuNA I/
Note: le parry should not be a homeowners association unless more than 50% of the lots have been sold and
ivision has been named the president.
1, a Notary Public for the State of North Carolina County of
�9 , do hereby certify that Jon T, Vincent personally appeared before me this
ZL-
.j3_ day of , 2005_, and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-103 Rev 3.99 Page 3 of