SW8060722_CURRENT PERMIT_20060816

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW U 602
DOC TYPE
� CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE&QVL
YYYYMMDD

July 26, 2006
NCDENR
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
c/o Mr. Paul T. Bartlett, PE
Re: Williams Walk Subdivision
Stormwater Application #SW8 060722
Mr. Bartlett:
This purpose of this letter is to provide the State of North Carolina Department of
Environmental and Natural Resources Division of Water Quality (NCDENR DWQ)
assurance that the attached information pertaining to deed restrictions and protective
covenants for High Density Residential Subdivisions will be incorporated into the final
Declaration of Covenants Conditions and Restrictions for the Williams Walk
Subdivision.
a
(Signed) tu , a i , - , , 4 Pa�
W. Dejfnrn Richardson — Owner
(Date) 7 — 2 9-- C 7j
I, \m L..a Notary Public of the County of �A-c—) kAanD,(er State
of North arolina, hereby certify that \„( r`n ' iL�afA-,pn appeared personally
before me this day and being duly sworn acknowledged that the above form was executed
by him.
Witness my hand and notarial seal, this OQ day of I , 20 Up
Notary ✓w
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—,0 My commission expires RAl L'�,k
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iNFORMATION PERTAINING TO DEED RESTRICTIONS }w I Z0 6
AND PROTECTIVE COVENANTS
In accordance with Title 15 NCAC 2H.1000, the Coastal Stormwater Management Reg ulations?de d
restrictions and protective covenants are required for High Density Residential Subdivisions where
lots will be subdivided and sold. Deed restrictions and protective covenants are necessary to ensure that
the development maintains a "built -upon" area consistent with the design criteria used to size the
stormwater control facility. The following deed restrictions and covenants must be recorded prior to the
sale of any lot:
The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number SW8 060722 as issued by the Division of Water Quality under
NCAC 21-1.1000.
2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming
under them.
4. 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.
5. Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the Division of Water Quality.
6. The maximum allowable built -upon area per lot is 3,870 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.
Note: If the BUA per lot varies, please substitute the following paragraph for the one above
and provide a complete listing of the proposed BUA for each lot:
The maximum allowable built -upon area per lot is as follows:
Lot# BUA Lot # BUA Lot # BUA
These allotted amounts include 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.
7. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be
accomplished through a variety of means including roof drain gutters which drain to the street,
grading the lot to drain toward the street, or grading perimeter swales to collect the lot runoff and
directing them into a component of the stormwater system. Lots that will naturally drain into the
system are not required to provide these additional measures.

A rFgQ
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August 16, 2006
Ms. W. Delynn Richardson, Owner
3135 Rustic Lane
Castle Hayne, NC 28429
Subject: Stormwater Permit No. SW8 060722
Williams Walk
High Density Subdivision Project
Pender County
Dear Ms. Richardson:
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
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Williams Walk on July-31, 2006. 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 060722, dated August
16, 2006, for the construction of the project, Williams Walk.
This permit shall be effective from the date of issuance until August 16, 2016, 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 an adjudicatory hearing upon written request within sixty (60) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150E 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,,---,'
7
u�iard-Bec Edk
Regional Supervisor
Surface Water Protection Section
ENBlptb: S:IWQSISTORMWATERIPERMIT1060722.aug06
cc: Garry S. Pape, P.E., Withers & Ravenel, Inc.
Ren Holt, Pender County Inspections
Paul T. Bartlett, P.E.
Wilmington Regional Office
Central Files
No�rthCarolina
dl aturally
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Custiomer Service
Wilmington Regional Office Internet: wwwmcwater ualii .or g Fax [phone]`7-623-6748
An Equal OpportunitylAffirmative Action Employer— 50% Recycledll0% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW8 060722
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
W. Delynn Richardson, Owner
Williams Walk
Pender County
FOR THE
construction, operation and maintenance of a wet detention pond 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 August 16, 2016 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 28 lots, each allowed 3,870 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 060722
5. The following design elements have been permitted for this wet detention pond
stormwater facility, and must be provided in the system at all times.
a. Drainage Area, acres:
11.54
Onsite, ft2:
502,618
Offsite, ft2:
None
b. Total Impervious Surfaces, .ft2:
181,652
Lots at 3,870 ft2:
108,360
Roads/Parking, ft2:
57,638
Other, ft2:
15,654
Offsite, ft2:
None
C.
d.
e.
f.
9
h
m
n.
o.
P.
Pond Depth, feet: 4.0
TSS removal efficiency: 90% .
Design Storm: 1.0
Permanent Pool Elevation, FMSL: 42.0
Permitted Surface Area @PP, ft2: 16,948.
Permitted Storage Volume, ft3: 15,738
Storage Elevation, FMSL
Controlling Orifice:
Permanent Pool Volume, ft3
Forebay Volume, ft3:
Maximum Fountain Horsepower:
Receiving Stream 1 River Basin
Stream Index Number:
Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
42.5
2.0"0 pipe
43,562
8,986
116
UT Burgaw Creek 1 Cape Fear
18-74-39
"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. If an Architectural Review Board or Committee is required to review plans for
compliance with the BUA limit, the plans reviewed must include all proposed
built -upon area. Any approvals given by the Board do not relieve the homeowner
of the responsibility to maintain compliance with the permitted BUA limit.
Page 3 of 8

State Stormwater, Management Systems
Permit No. SW8 060722
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 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.
7. 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.
8. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
9. 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.
10. 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.
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 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 060722, 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.
Page 4of8

State Stormwater Management Systems
Permit No. SW8 060722
12. Deed Restrictions (Cont'd.)
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 3,870 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 from built upon area 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 swales 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.
13. 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.
14. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent
pool surface.
b. Separated units, where the nozzle; pump and intake are connected by
tubing, may be used only if they draw water from the surface in the deepest
part of the pond.
c. The falling water from the fountain must be centered in the pond, away from
the shoreline.
d. The maximum horsepower for the fountain's pump is based on the
permanent pool volume. The maximum pump power for a fountain in this
pond is 116.
15. Prior to 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.
16. 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.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW8 060722
17. 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.
18. 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.
19. 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
1. 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 16th day of August 2006.
NORTH-CAROLINA ENjJIRONMENTAL MANAGEMENT COMMISSION
for Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 060722
Page 6 of 8

State Stormwater Management Systems
Permit No. SW8 060722
Williams Walk Page 1 of 2
Stormwater Permit No. SW8 060722
Pender 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 060722
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
Ren Holt, Pender County Building Inspections
Page 8of8

OFFICE USE,ONLY
Date Received
Fee Paid
Permit Number
oa
� f
61, Z ^ 3 State of North Carolina
Department of Environmental and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
W. Dclvnn Richardson
2. Print Owner/Signing; Official's name and title (person legally responsible for facility and compliance):
W. Delynn Richardson - Owner
3. Mailing; Address for person listed in Item 2 above:
3 13 5 Rustic Lane
City: Castle 1-layne Stale: NC Zip: 28429
Telephone Number: [phone]
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Williams Walk
5. Location of Project (street address):
Penderlea hlidhway. Town of 13umaw. North Carolina
City: — I3urgaw _ County-. . Pender
6. Directions to project (from nearest major intersection):
From Wilmington, Exit 17S a, Southport -Supply Road (Route 211), make right onto Long, Beach -Road SEA
follow 1.5-2 miles project site is on the left
7. Latitude: 340 33' 24" N
Longitude: 77" 56' 52" W of project.
8. Contact person who can answer questions about the project::
Name: Garry S. Pap- PE Telephone Number: [phone]
II. PERMIT INFORMATION:
I . Specify whether project is (check one): _X New
Farm SWU-101 Version 399 Page I of
Renewal Modification

1-5 1(9b dT h -- (ee �P r-e,/ � z Sco q d &v 7 z ?-
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 pen -nits 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 by the use of wet detention pond
2. Stormwater runoff from this project drains to the Cape Fear
3, Total Project'Area: 13.82 acres.
4. Project Built Upon Area: 30.2 %.
S. How many drainage areas does the project have?
River Basin.
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach and additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area I
Drainage Area 2
Receiving Stream Name
Unnamed Trib to Bur yaw Creek
Receiving Stream Class
C ; Sw
Drainage Area
502,618 sf 11.54 ac
Existing Im ervious*Area
- 0 -
Pro osed Impervious* Area
181,652 sf-4.17 ac
% Impervious* Area Total
36.1%
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -Site Lots 28 lots @ 3,870 SF)
109,360 sf
On -Site Streets
57,638 sf
On -Site Parkin Pavement
- 0 -
On -Site Sidewalks
14,154 sf
Other On -Site Purnp Station
1,500 sf
Off -Site
- 0 -
Total:
181,652 sf— 4.17 ac
*Impervious area is defined as the buill upmr area including, but not limited to, buildings, roads, parking areas,
sideivalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

7IT(IC6 P pl -
J'w g 060 72-- 2-
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, out parcels, 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 storinivater management
perinit 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 3,870 square feet of any lot shall be covered by structures or impervious materials.
Impervious materialy include asphalt, gravel, concrete, brick, stone, slate or similar material but not include
snood decking or the water surface ofsiviniming pools.
3. S►vales shall not be filled in, piped, or altered except as necessaty to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater mattagewent permil
modification prior to construclion.
5. All permitted runoff from the oulparcels or fixture development shall be directed into the permitted
storinwtitei, coiitrol system. These conneclions to the storm►wditer control system .shall be performed in a
Haunter that maintains the integrity and pei formance 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
Forst 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

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.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
raw
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each 13MP
• Permit application processing fee of $426(payable to NCDENR)tfo.a
• 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
- 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): Withers & Ravenel, Inc.
Mailing Address:_ 7040 Wrightsville Ave, Suite 101
City Wilmington State: NC Zip: 28403
Phone: ( 910) 256-9277 Fax: [phone]
VIIL APPLICANT'S CERTIFICATION
1, (print or• l ape name of person listed in General Information, ation, Item 2) W. Delynn Richardson
certify that the information included on this permit 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, qnd that the proposed project complies with the requirements of 15A
NCAC 214.1000.
Signature: C."J V Date:
Form SWU-101 Version 3.99 Page 4 of

Permit No. WU W + Z_
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORK[
WET DETENTION BASIN SUPPLEMENT
1 his form may be photocopied for use as an original
DWQ Storimvater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for
each basin, design calculations, and plans and specifications showing all basin and outlet structure details.
1. PROJECT INFORMATION
Project Name: Williams Walk
Contact Person: Garry S. Pape, PE Phone Number: 910-256-9277
For projects with multiple basins, specify which basin this worksheet applies to:
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation
areas
Permanent Pool Surface Area
Drainage Area
Impervious Area
volumes
Permanent POOL Volume
Temporary Pool Volume
Forebay Volume
other parameters
SA/DA'
Diameter of Orifice
Design Rainfall
Design TSS Removal
Footnotes:
38.0
42.5
16,949
1 1.54
4.17
43,562
15 73 8
9,986
ft. (floor of the basin)
ft. (elevation of the orifice)
ft, (elevation of the discharge structure overflow)
sq. ft. (wafer surface area at the orifice elevation)
ac. (on -site and off -site drainage to the basin)
aC. (on -site and off -site drainage to the basin)
cu. ft. (combined voluine of main basin and foreba))
cu. ft. (volume detained above the permanent pool)
cu, ft. (approximately 20% of total volume)
3.19
2.0 in.
1.0 in.
90 %
(vinface area to drainage area ratio fr•oin, DWQ table)
(2 to 5 day temporary pool draw -down required)
(minimum 85016 required)
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based
upon the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the
correct value for nonstandard table entries.
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to
provide 90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90%
TSS removal.
form S W U-102 Rev 3.99 Page I of 4

II. 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 211 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. If a requirement has not been met, attach justification.
Applicants tials
S
KCZ> P
a.
The permanent pool depth is between 3 and G feet (required minimum of 3 feet).
b.
The forebay volume is approximately equal to 20% of the basin volume.
S
c.
The temporary pool controls runoff from the design storm event.
S
d.
The temporary pool draws down in 2 to 5 days.
N R
�SQ
e.
1.
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations)
The basin length to width *ratio is greater than 3: 1.
ST
5`
g.
h.
i.
The basin side slopes above the permanent pool are no steeper than 3: 1.
A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
Vegetative cover above the permanent pool elevation is specified.
51.
j.
A trash rack or similar device is provided for both the overflow and orifice.
% Ar -
=10k.
t�,%Z:P
1.
A recorded drainage easement is provided for each basin including access to nearest right-of-way.
If the basin is used for sediment and erosion control during construction, clean out of the basin is
cz �specified
prior to use as a wet detention basin.
m.
A mechanism is specified which will drain the basin for maintenance or an emergency.
1.11. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
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) O does Adoes not incorporate a vegetated filter at the outlet.
This system (check one) O does 0 does not incorporate pretreatment other than a forebay.
Form S W U-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated
cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2
to 5 days as designed.
2. Repair eroded areas immediately, rc-seed as necessary to maintain good vegetative cover, mow vegetative cover
to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper
functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to
75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate
manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling near a wet
detention basin or stream, etc.).
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.
-�f D � ( ���s �ad
When the permanent pool depth reads �� feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(till in the blanks)
Permanent Pool Elevation
Sediment Re oval El. ��'� 75
-----------o --- -- Sediment Removal Elevation 759b
Bottom Ele ation %
_�--------------------------------------------125%
------
Bottom Elevation 3i •O
FOREBAY MAIN POND.
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf' and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet detention basin system shall be maintained in good working order.
Form SWU-102 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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: W. Delvnn Richardson
Title: Owner
Address: 3135 Rustic Lane, Castle Hayne, North Carolina 28429
Phone: [phone]
Date: 4111106
Signature: (i1 I
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.
1,_ !y2! '1c ..t L a Notary Public for the State of N�OrAh Oaro � { C `-
County of N e&0 ,~�snule.r' do hereby certify that �•� . �e���nn 1� r ����
personally appeared before me this k^ day of Ju i
and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
\-%10
z BOG �
,.,` ,�, ..• Gp • ��•
nmIli I%%
SEAL,
My commission expires �� 2
Dorm S W U-102 Rev 3.99 Page 4 of 4