SW8131207_CURRENT PERMIT_20220510 (2)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 131101
DOC TYPE
$] CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2 o 22 0 51 c>
YYYYMMDD

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director'
May 10, 2022
D.R Horton, Inc.
Attn: Bradford Brundage, Vice President
1341 Horton Circle
Arlington, TX 76011
NORTH CAROLINA
Environmental Quality
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No. SW8 131207
Hawkeswater at the River Phase 4
Brunswick County
Dear Mr. Brundage:
The Division of Energy, Mineral and Land Resources received a complete 8-year Permit Renewal Application for
the subject permit on April 4, 2022. The Division is hereby notifying you that permit SW8131207 has been
renewed, updated, and re -issued on May 10, 2022, as attached. Please be aware that the renewal and re -issuance
of this stormwater permit does not imply that the site is currently in compliance.
This permit shall be effective until May 16, 2030 and does not supersede any other agency permit that may be
required. The project shall be subject to the conditions and limitations as specified therein. This permit does not
impose new or increased stormwater control requirements; it clarifies the rules and requirements of this program
to provide you with a better understanding of your obligations under this permit. Failure to comply with these
requirements will result in future compliance problems. Please note that this permit is not transferable except
after notice to and approval by the Division.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request
an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The
written petition must conform to Chapter 150E of the North Carolina General Statutes and must be filed with the
OAH within thirty (30) days of receipt of this permit. You should contact the OAH with all questions regarding
the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center,
Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at www.NCOAE.corn. Unless
such demands are made this permit shall be final and binding.
If you have any questions concerning this permit, please contact Ashley Smith in the Wilmington Regional
Office, at [phone] or [e-mail].
Sincerely,
VX
5�7 Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permitting History
Renewal Application Documents
DES/ams: \\\Stormwater\Permits & Projects\2013\131207 HD\2022 05 permit 131207
cc: Donald Aiken; D.R. Horton, Inc.; 131 Racine Drive, Suite 201; Wilmington, NC 28403
Wilmington Regional Office Stormwater File
0.0 D _E Q'. North Carolina Department of Environmental Quality I Division of Energy. Mineral and land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington. North Carolina 28.105
^+�+ —\ /./ 910.796.7215

Post -Construction Stormwater Management
Permit No. SW8 131207
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
POST -CONSTRUCTION STORMWATER MANAGEMENT PERMIT
HIGH DENSITY SUBDIVISION 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
D.R. Horton, Inc.
Hawkeswater at the River. Phase 4
River Road, Leland, Brunswick County
FOR THE
construction, operation and maintenance of one (1) wet detention pond in compliance with the
provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter separately and collectively
referred to as the "stormwater rules') and as outlined in the application, approved stormwater
management plans, supplement, calculations, operation and maintenance agreement, recorded
documents, specifications, and other supporting data (the "approved plans and specifications") as
attached and/or on file with and approved by the Division of Energy, Mineral and Land Resources (the
"Division" or "DEMLR"). The project shall be constructed, operated and maintained in accordance
with these approved plans and specifications. The approved plans and specifications are
incorporated by reference and are enforceable part of this permit.
This permit shall be effective from the date of issuance until May 16, 2030 and shall be subject to the
following specified conditions and limitations. The permit issued shall continue in force and effect until
the permittee files a request with the Division for a permit modification, transfer, renewal, or
rescission; however, these actions do not stay any condition. The issuance of this permit does not
prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or
terminating the permit for cause as allowed by the laws, rules, and regulations contained in Title: 15A
NCAC 2H.1000 and NCGS 143-215.1 et.al.
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.7 of this permit. The runoff from all built -upon area within the permitted
drainage area of this project must be directed into the permitted stormwater control system.
The wet pond has been designed to handle the runoff from 93,568 square feet of impervious
area.
3. The subdivision is permitted for 8 lots, each allowed a maximum of 7,500 square feet of built -
upon area.
4. The maximum built -upon area allowed for the entire subdivision is 93,568 square feet.
Page 1 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
5. The project shall provide and maintain a 50' wide vegetative buffer adjacent surface waters,
measured horizontally from and perpendicular to the normal pool of impounded structures, the
top of bank of each side of streams and rivers and the mean high water line of tidal waters.
6. A vegetated filter strip is not required for this pond as it has been designed for a 90% total
suspended solids removal efficiency.
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:
Onsite, ftz:
Offsite, ftz:
b. Total Impervious Surfaces, ftz:
Onsite, ftz:
Offsite, ftz:
C. Average Pond Design Depth, feet:
d. TSS removal efficiency:
e. Design Storm:
f. Permanent Pool Elevation, FMSL:
g. Permitted Surface Area @PP, ftz:
h. Permitted Temporary Storage Volume, ft3:
i. Temporary Storage Elevation, FMSL:
j. Predevelopment 1 yr-24 hr. discharge rate, cfs:
k. Controlling Orifice:
I. Orifice Flowrate, cfs
m. Permanent Pool Volume, ft3:
n. Forebay Volume, ft3:
o. Maximum Fountain Horsepower:
p. Receiving Stream / River Basin:
q. Stream Index Number:
r. Classification of Water Body:
6.34
276,065
0
93,568
93,568
0
3.0
90%
1.5
6.0
12,738
14,966
7.0
7.45
2.0"0 pipe
0.07
39,179
7,988
1/8
Brunswick River / Cape Fear
18-77
"SC"
8. Based on this plan and design submitted to DEMLR, the elevation of the permanent pool is set
at 6.0 fmsl, the elevation of the temporary pool is set at 7.0 fmsl, the outlet invert elevation is
5.5 fmsl, the elevation of the downstream discharge point is 5.0 fmsl, and the highest elevation
of the adjacent wetland is 3.0 fmsl.
a. The difference in the elevations between the permanent pool and the nearby wetlands
indicates that the pond will not dewater the adjacent wetlands. Additionally, the
downstream elevations and conveyances, as demonstrated on the plans, are at an
elevation lower than the outlet pipe, allowing the pond to function adequately to release
the required storage volume within the specified drawdown time.
b. A site specific soil evaluation was not provided for this project. Without a site specific
soils evaluation, the seasonal high water table and/or groundwater conditions are
unclear in the location of the wet pond; therefore this wet pond may not be able to
sustain its permanent pool level. Please note that this may cause the wet pond to
become dry between storm events which may endanger the health of the vegetation on
the vegetated shelf or incoming groundwater may maintain a pool level that prevents
the required storage volume from being available and preventing the runoff from
discharging within the specified drawdown time. Therefore, the designer is responsible
for:
1. providing DEMLR with a certification and survey showing the pond meets all
approved design criteria and elevations as noted in the plans and this permit.
2. ensuring that the owner is aware that: (a) the pond may dry out between storms
and that, (b) a healthy stand of vegetation must be maintained on the vegetated
shelf.
Page 2 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
C. If, in the future, this design is not found to meet the intent of the stormwater rules or
does not provide the required design elements, then modifications to the stormwater
system, including the pond design, will be required.
II. SCHEDULE OF COMPLIANCE
1. The permittee is responsible for the routine monitoring of the project for compliance with the
built -upon area limits, grading, and the storm drainage system established by this permit, the
permit documents, the approved plans, and the recorded deed restrictions. The permittee shall
notify any lot owner that is found to be in noncompliance with the conditions of this permit in
writing and shall require timely resolution.
2. The permittee shall review all individual proposed and modified lot plans for compliance with
the conditions of this permit. The permittee shall not approve any lot plans where the
maximum allowed built -upon area has been exceeded, or where revisions to the gradinq or to
the storm drainage system are proposed unless and until a permit modification has been
approved by the Division.
3. No person or entity, including the permittee, shall alter any component shown in the approved
plans and specifications. Prior to the construction of any modification to the approved plans,
the permittee shall submit to the Director, and shall have received approval for modified plans,
specifications, and calculations including, but not limited to, those listed below. For changes to
the project or SCM that impact the certifications, a new or updated certification(s), as
applicable, will be required and a copy must be submitted to the appropriate DEQ regional
office upon completion of the modification.
a. Any modification to the approved plans and specifications, regardless of size including
the SCM(s), BUA, details, etc.
b. Redesign or addition to the approved amount of BUA or to the drainage area.
C. Further development, subdivision, acquisition, lease or sale of any, all or part of the
project and/or property area as reported in the approved plans and specifications.
d. Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or
vegetative conveyance shown on the approved plan.
e. The construction of any allocated future BUA.
f. Adding the option to use permeable pavement or #57 stone within the lots as a
permeable surface. The request may require a proposed amendment to the deed
restrictions and protective covenants for the subdivision to be submitted and recorded.
g. The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included in
the approved plans and specifications.
h. Other modifications as determined by the Director.
4. 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.
5. 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.
6. All stormwater collection and treatment systems must be located in public rights -of -way,
dedicated common areas or recorded easements. The final plats for the project will be
recorded showing all such required rights -of -way, common areas and easements, in
accordance with the approved plans.
Page 3 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
7. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately. If the stormwater system is 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. A modification may be required for those deviations.
9. The facilities shall be constructed, operated and maintained in accordance with the provisions
of this permit, the approved plans and specifications, and the supporting documents attached
to this permit and on file with the Division.
10. The permittee shall follow the approved Operation and Maintenance (O&M) Agreement in its
entirety, and shall provide and perform the listed operation and maintenance at the scheduled
intervals to assure that all components of the permitted stormwater system function at design
condition.
11. Records of maintenance activities must be kept by the permittee. The records will indicate the
date, activity, name of person performing the work and what actions were taken.
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 131207, as issued by the Division of
Energy, Mineral and Land Resources 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 Energy, Mineral and
Land Resources.
e. Alteration of the drainage as shown on the approved plans may not take place without
the concurrence of the Division of Energy, Mineral and Land Resources.
f. The maximum built -upon area per lot is 7,500 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. For those lots within CAMA's Area of Environmental Concern, where DCM calculates a
different maximum lot built -upon area, the governing lot BUA shall be the more
restrictive of the two numbers.
h. All runoff from the built -upon areas on the lot must drain into the permitted system. This
may be accomplished through providing roof drain gutters, which drain to the pond or
street, grading the lot to drain toward the street or directly into the pond, or grading
perimeter swales and directing them into the pond or street.
i. Built -upon area in excess of the permitted amount will require a permit modification.
j. All affected lots shall maintain a 50' wide vegetative buffer adjacent to surface waters,
measured horizontally from and perpendicular to the normal pool of impounded
structures, the top of bank of each side of streams and rivers and the mean high water
line of tidal waters.
k. Any individual or entity found to be in noncompliance with the provisions of a
stormwater management permit or the requirements of the Stormwater Rules is subject
to enforcement procedures as set forth in G.S. 143, Article 21.
Page 4 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
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 are allowed in the pond, subject to the following criteria:
a. The minimum permanent pool volume is 30,000 cubic feet.
b. The fountain must draw its water from less than 2' below the permanent pool surface.
C. 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.
d. The fountain may not be placed into the forebay.
e. The falling water from the fountain must be centered in the main pond, away from the
shoreline.
f. The maximum horsepower for a fountain in this pond is 1/8 horsepower.
III. GENERAL CONDITIONS
CORRECTIVE ACTIONS REQUIRED. If the facilities fail to perform satisfactorily, the
permittee shall take immediate corrective actions. This includes actions required by this
Division and the stormwater rules such as the construction of additional or replacement on -site
stormwater systems. These additional or replacement measures shall receive a permit from
the Division prior to construction.
PERMIT RENEWAL. A permit renewal request must be submitted at least 180 days prior to
the expiration date of this permit. The renewal request must include the appropriate
application, documentation and the processing fee as outlined in Title 15A NCAC
02H.1045(3).
CHANGES TO THE PROJECT NAME, PERMITTEE NAME OR CONTACT INFORMATION.
The permittee shall submit a completed Permit Information Update Application Form to the
Division within 30 days to making any one of these changes.
TRANSFER. This permit is not transferable to any person or entity except after notice to and
approval by the Director. Neither the sale of the project and/or property, in whole or in part, nor
the conveyance of common area to a third party constitutes an approved transfer of the permit.
TRANSFER REQUEST. The transfer request must include the appropriate application,
documentation and the processing fee as outlined in 15A NCAC 02H.1045(2). This
request must be submitted within 90 days of the permit holder meeting one or more of
the following:
i. A natural person who is deceased;
ii. A partnership, limited liability corporation, corporation, or any other business
association that has been dissolved;
iii. A person or entity who has been lawfully and finally divested of title to the
property on which the permitted activity is occurring or will occur through
foreclosure, bankruptcy, or other legal proceeding.
iv. A person or entity who has sold the property, in whole or in part, on which the
permitted activity is occurring or will occur, except in the case of an individual
residential lot sale that is made subject to the recorded deed restrictions and
protective covenants;
V. The assignment of declarant rights to another individual or entity;
vi. The sale or conveyance of the common areas to a Homeowner's or Property
Owner's Association, subject to the requirements of NCGS 143-214.7(c2);
TRANSFER INSPECTION. Prior to transfer of the permit, a file review and site
inspection will be conducted by Division personnel to ensure the permit conditions
have been met and that the project and the on -site stormwater system complies with
the permit conditions. Records of maintenance activities performed to date may be
requested. Projects not in compliance with the permit will not be transferred until all
permit and/or general statute conditions are met.
Page 5 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
5. COMPLIANCE. The permittee is responsible for compliance with the terms and conditions of
this permit until the Division approves the transfer request.
a. APPROVED PLANS AND SPECIFICATIONS. A copy of this permit, approved plans,
application, supplement, operation and maintenance agreement, all applicable
recorded documents, and specifications shall be maintained on file by the permittee at
all times.
b. DIVISION ACCESS. The permittee grants Division Staff permission to enter the
property during normal business hours to inspect all components of the permitted
project.
C. ENFORCEMENT. Any individual or entity found to be in noncompliance with the
provisions of a stormwater management permit or the requirements of the stormwater
rules is subject to enforcement procedures as set forth in NCGS 143 Article 21.
d. ANNUAL CERTIFICATION. The permittee shall electronically submit to the Division an
annual certification completed by either the permittee or their designee confirming the
projects conformance with permit conditions
e. OBTAINING COMPLIANCE. 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 modified plans and certification in writing to the Director that the
changes have been made.
OTHER PERMITS. The issuance of this permit does not preclude the permittee from
complying with and obtaining any other permits or approvals that are required for this
development to take place, as required by any statutes, rules, regulations, or
ordinances, which may be imposed by any other Local, State or Federal government
agency having jurisdiction. Any activities undertaken at this site that cause a water
quality violation or undertaken prior to receipt of the necessary permits or approvals to
do so are considered violations of NCGS 143-215.1, and subject to enforcement
procedures pursuant to NCGS 143-215.6.
Permit renewed, updated and reissued this the 10th day of May 2022.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
rl
nan vvrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW8 131207
Page 6 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
Hawkeswater at the River, Phase 4
Stormwater Permit No. SW8 131207
Brunswick County
Attachment A
Designer's Certification
Page 1 of 2
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 is a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 7 of 8

Post -Construction Stormwater Management
Permit No. SW8 131207
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: NCDEQ-DEMLR Wilmington Regional Office
Brunswick County Building Inspections
Page 8 of 8

Attachment C - Permitting History
Hawkeswater at the River Phase 4
Permit No. SW8 131207
Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
5/16/2014
Original
Approval
10
5/10/2022
Renewal
2.0
Expires May 16, 2030

Permit Number: ��/ �11_
(to be provided by DWG!)
Drainage Area Number: _
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in it
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request. F� EQVE
Inspection activities shall be performed as follows. Any problems tha re Fir�iincfls0{taa09;(
be repaired immediately.
8Y: —
AMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash debris is present.
Remove the trash debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4

Permit Number:
r.
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How 1 will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
Swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the al al growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
CIEWE
rDEC 0 9 2013
Form SW40I-Wet Detention Basin O&M-Rev.4 PagU of 4
BY:�

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
Flow 1 will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs re air. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 6.0 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 6.0 feet in the forebay, the sedit4ent
shall be removed.
APR 0 8 20'94
BASIN DIAGRAM BY.�__
Ull in the blanks)
Permanent Pool Elevation 6.0
Sediment Removal E . 0_0 Pe manes Pool
Volume Sediment Removal Elevation 0_0 Volume
Bottom Glevatim -I_0 -ft Min. ------ --------------------- --------------- ------
Sediment Bottom Elevation -I.0 1-ft
Storage Sedimet
Storage
FOREBAY MAIN POND
Form SW40.1-Wet Detention .BasinO&M-Rev.4 +u ti;,taL`r};i;.r?•;r• ... Page 3:of4 a1;

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Hawkeswater at the River Phase 4
BA4P drainage area number:
Print name:David Lee
Title:Authorized Agent
Address:4073 Belle Terre Boulevard
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.
h RW e+dne ^ L.. Ma.�tyc a Notary Public for the State of
_( w-j" County of do hereby certify that
t7 n.r, d l xe personally appeared before me this. q-_
day of Ot t e w-,t�e r Zoe—, and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
,,,`�1111111141ry,r,
NOTARY �X
c PUBLIC =
s p
SEAL
My commission expires LAAV I'O La 13
E
DEC 0 9 2013
Form SW40I-Wet Detention Basin O&M-Rev.4 Page 4 of 4

a

DEMLR USE ONLY
Dale 5eclived
Fee Paid
Permit Number
y
as
4-- 19-2
I gas —I
SUX 13 120-7
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SW8 131207
2. Project name: Hawkeswater at the River, Phase 4
3. Project street address: River Rd.
City: E
28451
County: Brunswick ZIP :
4. What, if any, changes have been made to the project as permitted? N/A
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https://deg.nc.gov/about/divisions/eriergv-
m i neral-land-resources/energy-m ineral-land-rules/stormwater-program/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https://deg.nc.gov/about/divisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-orogram/post-construction. State Stormwater Permits (to not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: D.R. Horton, Inc.
2. Signing Official's Name: Bradford Brundage
3. Signing Official's Title: Vice President
4. Mailing Address: 1341 Horton Circle
City: Arlington
5. Street Address: 131 Racine Dr., Suite 201
TX ZIP: 76011
City: Wilmington State: NC ZIP
28403
6. Phone: [phone] Email: bcbrundage(a)drhorton.com
APR 0 4 2022 ,1 j
BY_
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
BB 1. A permit application processing fee of $505.00 payable to NCDEQ.
BB 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
BB 3. One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
BB 4. O&M Agreements, Please select one:
® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
N/A 5. Designer Certifications, Please select one:
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
N/A 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional staling that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
i
BB 7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide
one hard copy and one electronic copy of documentation from the NC Secretary of State, or other
official documentation, which supports the titles and positions held by the persons listed in Section
C.2 per 15A NCAC 2H. 1043(3)(b). i
https://www.sosnc.gov/online services/search/by titlel Business Registration
APR 0 4 MLl
Stormwaler Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTEE'S CERTIFICATION
I, ir4W&rd B?'rar" Re , the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement orYsite (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my
knowledge, correct and coInplete.
Signature: /" f Date: �_ 2y. Jj
NOTARIZATION: H, 1
I, i t C. - W o Y r e- r 1 -,a Notary Public for the State of
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal)
Notary Signature:
My commission expires 1 ��
do hereby certify
personally appeared before me
20��, and acknowledge the due
APR 0 4 2022 (�
Stormwaler Permit Renewal Application Form Page 3 of 3 May 11, 2018

,_ .
�ep4t4111 if N/r
n
'TynrJti-Pi P
1 t: CO .�
i
( fit

Permit No.
(to be prevOed by DWO)
v
�A/�
2OF W a rgR,
NCDENR
As
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Project name
Hawlkesv ter Phase
Contact person
Timothy Clinkscales, PE
Phone number
910-791-6707
Date
11/1112013
Drainage area number
1
II; DESIGN INFORMATION
Site Characteristics
Drainage area
276,065 It'
Impervious area, post -development
93,568 it'
%impervious
33,89 %
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required
12,605 fit'
Volume provided
14,966 it'
OK, volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1.5' runoff volume
it,
Pre -development 1-yr, 24-hr runoff
It,
Post -development 1-yr, 24-hr runoff
ft'
Minimum volume required
ft'
Volume provided
It
Peak Flow Calculations
Is the prelpost contml of the lyr 24hr storm peak Flaw required?
Y (Y or N)
1ryr, 24-hr rainfall depth
3.9 in
Rational C, pre -development
0.20 limitless)
Rational C, post -development
0.45 (unilless)
Rainfall intensity: 1-yr, 24-hrstorm
6.28 inlhr OK
'
Pre -development 1-yr, 24-hr peak Bow
8CEHivE
7.45 ft'Isec �
Post -development 1-yr, 24-hr peak Bow
17.45 ft'Isec APR 0 8 2014
Pre/Post 1-yr, 24-hr peak flow control
10.00 ft'Isec
Elevations
Bi.
Temporary pool elevation
7.00 first
Permanent pool elevation
6.00 fmsl
SHWT elevation (approx. at the perm. pool elevation)
fmsl
Top of 1011 vegetated shelf elevation
6.50 final
Bottom of 10ft vegetated shelf elevation
5.50 fmsl Data not needed for calculation option #1, but OK if provided.
Sediment cleanout, lop elevation (bottom of pond)
0.00 first
Sediment cleanoul, bottom elevation
-1.00 first Data not needed for calculation option #1, but OK if provided.
Sediment storage provided
1.00 it
Is there additional volume stored above the state -required
temp, pool? N (Y or N)
Elevation of the top of the additional volume
fmsl
Form SW401-Wet Detention ansin-Rev.94119172`r`'I' " •
- .. -, i •'I d' 11 i; %r •' "' Parts I. a 11. Design Summary, Page 1 of 2

Permit
(ro be proviled by DWQ)
11. DESIGN INFORMATION --
Surface Areas
Area, temporary pod 16,268 f?
Area REQUIRED, permanent pool
10,518 ft,
SAIDA ratio
3.81 (unitess)
Area PROVIDED, permanent pool, A,,,
12,738 ft'
Area, bottom of 100 vegetated shelf, A,_,,,
10,178 ft"
Area, sediment cleanoul, top elevation (boftom of pond), Aea_pma
2,268 ft'
Volumes
Volume, temporary pool
14,966 ft'
Volume, permanent pool, Vp,,,,, aw
39.179 ft'
Volume, forebay (sum of forebays if more than one forebay)
7,988 ft'
Forebay % of permanent pool volume
20.4% %
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, V..,
Area provided, permanent pool, Ap,,,, p
Average depth calculated
Average depth used in SAIDA, d„, (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, Ap,,,, pad
Area, bottom of 10ft vegetated shelf, Ape ,r,yr
Area, sediment cleanout, top elevation (bottom of pond), Awe w
'Depth' (distance hlw bottom of IN shelf and top of sediment)
Average depth calculated
Average depth used in SAIDA, d„, (Round to down to nearest 0.5ft)
Drawdown Calculations
Drawdown through orifice?
Diameter of orifice (if circular)
Area of orifice (if -non -circular)
Coefficient of discharge (Cu)
Driving head (Ho)
Drawdown through weir!
Weir type
Coefficient of discharge (C..)
Length of weir (L)
Driving head (H)
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow 8 orifice?
Freeboard provided
Vegetated filler provided?
Recorded drainage easement provided?
Capums all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
90 %
Y (Y or N)
N (Y or N)
3,81 (unitless)
1�01=1
39,179 ft'
12,738 ft
3.08 ft
3.0 ft
N (Y or N)
12,738 ft
10,178 ft
2,268 ft2
5.50 0
ft
ft
Y (Y or N)
2.00 in
in
0.60 limitless)
0.30 ft
N (Y or N)
(unitless)
(unilless)
It
It
7.45 ft'Isec
17.45 ft'/sec
0,07 ft'Isec
2.00 days
OK
No
OK
OK
OK
APR 0 8 20%
BY:
OK, draws down in 2-5 days.
3 :1
OK
10 :1
OK
10.0 If
OK
3 A
OK
3.0 :1
OK
Y (Y or N)
OK
1.Oft
OK
N (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
Pump
Form SW401-W61 Delanlion masin-Rev.9.4/1e/12-
Parts 1. a II. Design Summary, Page 2 of 2 -

Permit No.
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST l
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials Sheet No.
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High Flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
- Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
- Vegetation specification for planting shelf, and " �' ®6i E
(�
Filter strip. J
Ir11.1-Y
3. Section view of the wet detention basin (1" = 20' or larger) showing: APR 0 8 20%
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and By:—
- Inlet and outlet structures.
G
�=
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay,
to verify volume provided.
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
G
entire drainage area is stabilized.
7. The
_
supporting calculations.
106
8. A copy of the signed and notarized operation and maintenance (O&M) agreement.
1
9. A copy of the deed restrictions (if required).
A10.
A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401•Wet Detention Basin-Rev.9-4/18/12
-u•:-•'Z•,' ... Partlll. Required Items Checklist; Page 1 of 1

Hinh Density Residential Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246, the Stormwater Management Regulations,
deed restrictions and protective covenants are required for High Density Residential Subdivisions where
lots will be subdivided and sold and runoff will be treated in an engineered stormwater control facility. 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.
I, David Lee Authorized A ent acknowledge, affirm and agree by my signature below, that I will cause
the of owing ee restrictions an covenants to be recorded prior to the sale of any lot:
1. The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number 5\3 1� 567 as issued by the Division of Water Quality under the
Stormwater Management Regulations.
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 7500 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.
OR, if the proposed built -upon areas per lot will vary, please REPLACE #6 above with the following:
6. The maximum built -upon area per lot, in square feet, is as listed below:
Lot # BUA Lot # BUA Lot # BUA Lot # BUA
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.
7. Each lot will maintain a 30** foot wide vegetated buffer between all impervious areas and surface .
waters.
**50 foot for projects located in the 20 coastal counties.
8. 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 collection system. Lots that will naturally drain into the system are
not required to provide these additional measures.
Form DRPC-3 Rev.2 05Nov2009 Pale 1 of 2

Hiaah Density Residential Subdivisions
Deed Restrictions & Protective Covenances
Date: �� I
I, i�vvtz►�ti . l a Notary Public in the
State of V Ao- l.. C1Jyr)l•,y A, County of IsYI Stu', r k
do hereby certify that Da,,: d let personally appeared
before me this the - day of 0t c t w.l� r 201�_, and acknoWledge
the due execution of the foregoing instrument. Witness my hand and official seal,
Signature
My Commission expires M� to 0 NOTARY Y-
c PUBLIC c
'A
Form DRPC-3 Rev.2 05Nov2009 Page 2 of 2