SW8070303_Current Permit_20220926

ROY COOPER
Gave wr
EUZABETH S. BISER
Secretary
BRIAN WRENN
Director
September 26, 2022
D.R. Horton, Inc.
Attn: Bradford Brundage, Vice President
1341 Horton Circle
Arlington, TX, 76011
NORTH CAROLINA.
Ehv1r0AM0dal Quat€t'y
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No. SW8 070303
The Overlook at Middle Sound
New Hanover 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 September 201, 2022. The Division is hereby notifying you that permit SW8070303 has
been renewed, updated, and re -issued on September 26, 2022 as attached. As requested, a. copy of the current
operation and maintenance agreement is also enclosed.
This permit shall be effective until March 26, 2029 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 150B 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.NCOAH.com. Unless
such demands are made this permit shall be final and binding.
If you have any questions concerning this permit, please contact .Aisia Freeman in the Wilmington Regional
Office, at [phone] or [e-mail]
Sincerely,
-q L ,
For Brian Wrenn., Director
Division of Energy, Mineral and Land Resources
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permittingg-�on�Histoorry�
Copy of the Renewal AppI'catiocuments
Copy of the current operation and maintenance agreement.
DE.S/af \`,\Stormwater\Permits & Projects\2007\070303 HD\2022 08 permit 070303
cc: Bradford Brundage; D.R. Horton, Inc.; 131 Racine Dr., Suite 201 Wilmington, NC 28403
Wilmington Regional Office
Noah Carolina Department of Environmental. Quality I Divistott of Energy. Mtneatand Land Resources
FM �P WUmingtonRegiof al Qf ice 1 127 Cardinal chive ExtWwon I Wilntirigtom North Carolina 28405
910.796.720

Post -Construction Stormwater Management
Permit No. SW8 070303
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
DR Horton, Inc.
The Overlook at Middle Sound
3210 Middle Sound Loop Road, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of two (2) wet detention ponds discharging to Class SA Waters in
compliance with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter separately and
collectively referred to as the "stormwater rules) 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 March 26t', 2029 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. The subdivision is permitted for 42 lots, each allowed a maximum amount of built -upon area as follows:
Lots 1-33 and 36-42 @4,000 square feet; Lot 34 @4116 sf; and Lot 35 @4470 sf.
3. This stormwater system has been approved for the management of stormwater runoff as described in
Section 1.8 of this permit. The runoff from all built -upon � area within � the permitted drainage areas of this
project must be directed into the permitted stormwater control systems. The wet ponds labeled as Pond
1 and Pond 2 have been designed to treat the runoff from 185,600 and 150,000 square feet of built -
upon area, respectively.
A. The maximum built -upon area allowed for the entire subdivision is 335,600 square feet
Page 'I of 6

Post -Construction Stormwater Management
Permit No. SW8 070303
5. The drainage areas will be limited to the amount of built -upon area indicated in Sections 1.3 and 1.8 of
this permit, and per approved plans. The built -upon area available for the future development within the
drainage areas of Pond 1 and Pond 2 is limited to 8,800 and 6,514 square feet, respectively.
6. A 50-foot-wide vegetative buffer must be provided adjacent all surface waters, measured horizontally
from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of
streams and rivers and the mean high water line of tidal waters.
7. The volume in excess of the design storm must flow overland through a level spreader and 50 foot
vegetative filter strip, designed per NCAC 2H.1008 (f) to pass the peak flow from the 10 year storm in a
non -erosive manner.
8. The following design elements have been permitted for the wet detention pond stormwater facilities and
must be provided in each respective system at all times.
Pond 1
Pond 2
a. Drainage Area, acres.
9.91
7.50
Onsite, ft :
431,700
326,700
Offsite, ft :
0
0
b. Total Impervious Surfaces, ft :
185,600
150,000
Onsite, ft :
176,800
143,486
Future, ft:
8,800
6,514
Offsite, ft:
0
0
c. Design Storm, inches:
3.8
3.8
d. Average Pond Design Depth, feet:
4.0
4.5
e. TSS removal efficiency:
90%
90%
f. Permanent Pool Elevation, FMSL:
6.5
7.2
g. Permitted Surface Area QPP, ft:
21,750
23,900
h. Permanent Pool Volume, ft
77,206
96,836
i. Forebay Volume ft :
15 570
19,736
j. Temporary Storage Elevation, FMSL:
8.6
8.8
k. Permitted Temporary Storage Volume, ft :
55,393
45,479
I. Predevelo ment 1 r-24 hr. discharge rate, cfs:
1.83
5.69
m. Controlling Orifice:
3.0"0 pipe
3.0"0 pipe
n. Orifice Flowrate, cfs
0.19
0.17
o. Maximum Fountain Horsepower:
1/4 1
1/3
p. Receiving Stream/River Basin:
Pages Creek
/ Cape Fear
q. Stream Index Number:
18-87-22
r. Classification of Water Body:
SA,
HQW
Page 2 of 6

Post -Construction Stormwater Management
Permit No. SW8 070303
9. The discharge from all wet ponds must be directed to a secondary BMP. The following design elements
have been permitted for the required secondary BMP, dry detention basins, and must be provided in
the system at all times.
Dry Pond 1
1 Dry Pond 2
a. Basin Bottom Elevation FMSL:
I A. 0
1 7 n
b. Sediment Storage Elevation, FMSL:
7.25
8
c. Storage Elevation, FMSL:
11.0
10.8
d. Sediment Storage Provided, ft:
16,278
12,384
e. Water Volume Provided, ft :
63,270
45,731
f. Controlling Orifice:
2.5" 0 pipe
2.5" 0 pipe
II. SCHEDULE OF COMPLIANCE
The permittee is responsible for the routine monitoring of the project for compliance with the built -upon
area limits, grading and storm drainage system established by this permit, the permit documents, the
approved plans and the recorded deed restrictions.
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, where the revisions to the grading 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 permittee shall notify any lot owner that is found to be in noncompliance with the conditions of this
permit, in writing and shall require remediation within a reasonable time frame.
5. 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.
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.
Page 3 of 6

Post -Construction Stormwater Management
Permit No. SW8 070303
7. All stormwater collection and treatment systems must be located in either 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.
8. During constnucticn, 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. A modification may be required for those deviations.
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. The permittee shall at all times provide the operation and maintenance necessary to assure that all
components of the permitted stormwater system function at design condition. The approved Operation
and Maintenance Agreement is incorporated by reference into this permit and must be followed in its
entirety and maintenance must occur at the scheduled intervals.
12. 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.
13. 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.
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 pond 1 is 1/4 horsepower and pond 2 is 1/3
horsepower.
15. The permittee shall amend and record modified deed restrictions to address the changes to the BUA limits
for Lot 34 and Lot 35, as per the amendment procedures prescribed in Article 17, Section 17.3 of the
previously recorded covenants found in DB 5852 at PG 189, within 60 days of receipt of this permit. The
permittee shall submit a copy of the amended and recorded deed restrictions to the Division within 30
days of the date of recording the plat, and prior to selling Lot 34 or Lot 35. The recorded copy must
contain all of the statements as set forth in Condition 11.19 of this permit, the proper references, the
signature of the Permittee and any affected lot owners, the deed book number and page, and the
stamp/signature of the Register of Deeds.
Page 4 of 6

Post -Construction Stormwater Management
Permit No. SW8 070303
16. The following deed restrictions and protective covenants related to stormwater management have been
recorded in Book book # on Pages page #s with the county County Register of Deeds, are incorporated
by reference, and must be maintained in perpetuity:
a. The following covenants are intended to ensure ongoing compliance with State Stormwater
r Cln/S2 7n 2n4 .� h + .1 n I rf u 4 nnn
Management Permit ,Jambe � V .., 0, a:� IssueU W .he Division unucr NCJ �� �1 I VVU.
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.
e. Alteration of the drainage as shown on the approved plans may not take place without the
concurrence of the Division.
f. The maximum built -upon area per lot is as follows: Lots 1-33 and 36-42 @4,000 square feet; Lot
34 @4116 sf; Lot 35 @4470 sf. 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. 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 to the street, grading
the lot to drain toward the pond or street, or grading perimeter swales and directing them into the
pond or street.
h. Built -upon area in excess of the permitted amount will require a permit modification.
i. All affected lots shall maintain a 50' wide vegetative buffer adjacent to all surface waters,
measured horizontally from and perpendicular to the normal pool of impounded structures, the top
of bank of both sides of streams and rivers and the mean high water line of tidal waters.
j. Any individual or entity found to be in noncompliance with the provisions of the stormwater
management permit or the requirements of the Stormwater Rules is subject to enforcement
procedures as set forth in G.S. 143, Article 21.
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.
2. 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).
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.
4. 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.
a. 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;
Page 6 of 6

Post -Construction Stormwater Management
Permit No. SW8 070303
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. -I he 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);
b. 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.
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 updated, renewed and reissued this the 231 day of September 2022.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW8 070303
Page 6 of 6

Attachment C - Permitting History
The Overlook at Middle Sound
Permit No. SW8 070303
Approval 1�
Date
i
Permit Action
Veian
Description of the Changes
Construction, operation and maintenance of five (5)
infiltration basins in compliance with the provisions of
15A NCAC 2H .1000 (hereafter referred to as the
3/26/2007
Original
1.0
"stormwater rules") and the approved stormwater
Approval
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.
On December 5, 2012, the Division of Water Quality
(DWQ) received a permit Name/Ownership Change
Form from Ridge Field Development, LLC. A file
review and site inspection was performed on June 30,
12/17/2012
Transfer
1.1
2012 by DWQ and determined that the site is not
constructed. The Division is hereby notifying you that
permit SW8 070303 has been transferred on December
17, 2012, and shall be effective until March 26, 2021,
which includes the extensions
The following modifications are included and covered
by this permit:
1.Transfers the permit from Gateway Bank & Trust to
DR Horton, Inc.
2.Re-designs the road and lot layout.
10/8/2013
Modification
1.2
The stormwater management system has been
redesigned to meet the latest set of rules and includes 2
wet detention ponds, 2 dry detention ponds to act as a
secondary BMP, and 2 level spreaders and vegetated
filter strips to handle the excess flow from the wet
detention pond.
Page 1 of 2

The following minor modifications are included and
covered by this permit:
1.Reallocates a total of 586 sf of the previously
permitted 7,100 sf future allocation to Lot 34 and Lot 35
7/22/2019
Minor
1.3
in Drainage Area #2. Lot 34 is now limited to a
Modification
maximum BUA of 4,116 sf and Lot 35 is now limited to
a maximum of 4,470 sf. The future BUA allocation
within DA #2 decreases to 6,514 sf.
2.Documents a mailing address change for the
permittee.
9/26/2022
Renewal
2.0
Renewal, New expiration date March 26th, 2029
Page 2 of 2

Permit Number. 54 '3?,0333
(to be provided by DWQ)
Drainage Area Number. �
Dry Extended Detention Basin
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The dry extended detention basin system is defined as the dry detention basin, outlet
structure, 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:
The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
- Immediately after the dry extended detention basin is established, the vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
No portion of the dry extended detention pond will be fertilized after the first
initial fertilization that is required to establish the vegetation.
I will maintain the vegetation in and around the basin at a height of
approximately six inches.
Once a year, a dam safety expert will inspect the embankment.
After the dry extended detention basin is established, it will be inspected once a quarter
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 will be kept in a known set
location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BiiilP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/.debris.
The Perimeter of the dry
Areas of bare soil and/or
Regrade the soil if necessary to
extended detention
I erosive gullies have formed.
remove the gully, and then plant a
basin
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Form SW401-Dry Detention 0&M-Rev.3
EC E IVE
JUL 15 2013
Page 1 of
6Y:

BMP element:
Potentialproblem:
How I will remediate the problem. --
The inlet device: pipe or
swale
The pipe is clogged (if
applicable).
Unclog; the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
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
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
(see diagram below).
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
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 pesticides are used, wipe
them on the plants rather than
s ra '
The main treatment area
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
(see diagram below).
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Revegetate disturbed
areas immediately with sod
(preferred) or seed protected with
securely staked erosion mat.
Water is standing more than
5 days after a storm event.
Check outlet structure for clogging.
If it is a design issue, consult an
appropriate professional.
Weeds and noxious plants are
Remove the plants by hand or by
growing in the main
wiping them with pesticide (do not
treatment area.
spray).
Form SW401-Dry Detention O&M-Rev.3
JUL 15 2M
g�' Page 2 of 4

BMP element.
Potentialproblem:
How I will remediate the problem:
The embankment
Shrubs or trees have started
Remove shrubs or trees
to grow on the embankment.
immediately.
Grass cover is unhealthy or
Restore the health of the grass cover
eroding.
— consult a professional if necessaEZ.
Signs of seepage on the
Consult a professional.
downstream face.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
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 NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
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 basin depth reads 4.75 feet in the main pond, the sediment shall be removed.
When the basin depth reads 4.75 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
fll in the blanks)
Sediment Removal EN 7.25 J. T po
-------------- -- olume
Bottom Elevatio 6.0 25%
Sediment
Storage
FOREBAY
Form SW401-Dry Detention O&M-Rev.3
Temporary Pool Elevation 11.00
Pool Tempotar
-----Sediment Removal Elevation 7.25-----------V01ume
Bottom Elevation
MAIN POND
ffift
�CF-IVE
JUL 15 2013
BY:—Page 3 0 4
25%

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 'ihe system or prior to any changes to the system or responsible party.
Project name:The Overlook at Middle Sound (Formerly Ridge Field at Middle Sound)
BMP drainage area number:I
Print name:Brad Brundage
Title:City Manager for David Lee, Vice President
Address:4073 Belle Terre Blvd, Myrtle Beach, SC 29579
Phone
Signat
Date: Id- a? 1 / 3
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.
14/' bt l� , a Notary Public for the State of
C""o//un of Lbrru , do hereby certify that
YGL I/nq, rj personally appeared before me this
day of 3, and acknowledge the due execution of the
forgoing dry detention basin maintenance requirements. Witness my hand and official
seal,
�.� �• '�riissia;�• F %�
PUBLIC =
S •.oq.30 2011• a?
III 1101"
SEAL
My commission expires Y►
1ECEIVEft
OCT 032013
BY:
Form SW401-Dry Detention O&M-Rev.3 Page 4 of 4

Permit Number: 5NA 07J303
(to be provided by DWQ)
Drainage Area Number: a
Dry Extended Detention Basin
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The dry extended detention basin system is defined as the dry detention basin, outlet
structure, 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:
- The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
- Immediately after the dry extended detention basin is established, the vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- No portion of the dry extended detention pond will be fertilized after the first
initial fertilization that is required to establish the vegetation.
- I will maintain the vegetation in and around the basin at a height of
approximately six inches.
- Once a year, a dam safety expert will inspect the embankment.
After the dry extended detention basin is established, it will be inspected once a quarter
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 will be kept in a known set
location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/ debris is present.
Remove the trash/ debris.
The perimeter of the dry
Areas of bare soil and/or
Regrade the soil if necessary to
j extended detention
I
I erosive gullies have formed.
remove the gully, and then plant a
basin
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Form SW401-Dry Detention O&M-Rev.3
-r
EIV
JUL 15 200
BY: Page _ of 4

BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
swale
The pipe is clogged (if
applicable).
Unclog the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
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
Search for the source of the
and reduced the depth to 75%
of the original design depth
sediment and remedy the problem if
possible. Remove the sediment and
(see diagram below).
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
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 pesticides are used, wipe
them on the plants rather than
spraying.
The main treatment area
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
of the original design depth
(see diagram below).
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Revegetate disturbed
areas immediately with sod
(preferred) or seed protected with
securely staked erosion mat.
Water is standing more than
5 days after a storm event.
Check outlet structure for clogging.
If it is a design issue, consult an
appropriate rofessional.
Weeds and noxious plants are
growing in the main
Remove the plants by hand or by
wiping them with pesticide (do not
treatment area.
spray).
JUL 15 2013
Form SW401-Dry Detention O&M-Rev.3 BY' Page 2 of 4

BMP element:
Potentialproblem:
How I will remediate the roblem:
The embankment
Shrubs or trees have started
Remove shrubs or trees
to grow on the embankment.
u ediztel^.
Grass cover is unhealthy or
Restore the health of the grass cover
eroding.
- consult a professional if necessary.
Signs of seepage on the
Consult a professional.
downstream face.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
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 NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
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 basin depth reads 2_8 feet in the main pond, the sediment shall be removed.
When the basin depth reads 2_8 feet in the forebay, the sediment shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
ill in the blanks)
Temporary Pool Elevation 10.80
.00 Te pora Pool Lemporary-------------- -- olume Sediment Removal Elevation 8.00 1025%-------------------------------------------Sediment Bottom Elevation 7.00
Storage Sto
FOREBAY MAIN POND
flECEIVE
AUG 2 8.2013
BY:
Form SW401-Dry Detention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:The Overlook at Middle Sound (Formerly Ridge Field at Middle Sound)
BAIP drainage area number:2
Print name:Brad Brundage
Title:City Manager for David Lee, Vice President
Address:4073 Belle Terre Blvd, Myrtle Beach, SC 29579
Phone:[phone]a r,
Signature:
Date: lG'
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.
a Notary Public for the State of
S , Coug of �+rrl� , do hereby certify that
briArd ✓riGC personally appeared before me this end
./
day of �( r 3 , and acknowledge the due execution of the
forgoing dry detention basin maintenance requirements. Witness my hand and official
seal,
.�`` � e • W EIS ���i
���` Q • Ril6sip ' • G ��i
N 'off °F+•��
2� OTARy��i m
PUBLIC
C Ag()\'
SEAL
My commission expires YI30,A01
OCT 0 3 2013
BY:
Form SW401-Dry Detention O&M-Rev.3 Page 4 of 4

Permit Number \,a anu3
(to be provided by DWQ)
Drainage Area Number._
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BUT.
Important maintenance procedures:
Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
- Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
- Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate the problem. -
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
(if applicable)
The flow splitter device is
cl ed.
Unclog the conveyance and dispose
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
9 9GFIVE
JUL 15 2013
BY: ---
Form SWU401-1,evel Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page I of 3

BN F element:
Potentialproblem:
How I will remediate theproblem:
The Swale and the level
lip
7-bp- Swale is clogged with
sediment.
Remove the sediment and dispose
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the Ievel lip, and
shows stormwater has
then plant a gerund cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslope of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
if applicable).
approximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
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.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
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.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
I The receiving water
I Erosion or other signs of
Contact the NC Division of Water
R
damage have occurred at the
outlet.
Quality local Regional Office, or the
1 401 Oversight Unit at 919-733-1786.
ECEIVE
_ JUL 1 R 7013
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M -Rev. �Y. Page 2 of 3

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:The Overlook at Middle Sound Formerly Ridge Field at Middle Sound)
BMP drainage area number: I
Print name:Brad Brundage__
Title:City Manager for David Lee, Vice President
Address:4073 Belle Terre Blvd, Myrtle Beach, SC 29579
Date: 16 0 Y 3
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.
W%s G / (/I' , a Notary Public for the State of
S , County of Yr , do hereby certify that
ra.d fox personally appeared before me this ��
day of Ir' , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
e': Goff 'F.p^.• �,/%
==:a �oTAR),
PUBIUG
pUTii co-0
\\\
SEAL
My commission expires 611 30,?Ory
y
OCT 032011
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

Permit Number: 5\4 0703 j
(to be provided by DWo
Drainage Area Number:_
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
- Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
- Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
- Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
system
Trash/ debris is present.
Remove the trash/ debris.
The flow splitter device
(if applicable)
The flow sputter device is
clogged.
Unclog the conveyance and dispose
of any sediment off -site.
The flow splitter device is
damaged.
Make any necessary repairs or
replace if damage is too large for
repair, i
�F-CEIVIE
JUL 15 2013
BY:
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page l of ?

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level
lip
The swale is clogged with
sediment.
Remove the sediment and dispose
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
shows stormwater has
that is higher than the level lip, and
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo a of the level lip.
The bypass channel
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
damaged or ripap is rolling
downhill.
Study the site to see if a larger
bypass channel is needed (enlarge if
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
if applicable). _
Maintain grass at a height of
approximately three to six inches.
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
the filter strip.
Remove the sediment and
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
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.
Nuisance vegetation is
choking out desirable species.
Remove vegetation by hand if
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of I
Contact the NC Division of 'Water �
damage have occurred at the
outlet.
Quality local Regional Office, or the
401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3
CE IVIE
JUL 15 2013
BY:
Page 2 of 3

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:The Overlook at Middle Sound (Formerly Ridge Field at Middle Sound)
BI P drainage area number:2
Print name:Brad Brundage
Title:City Manager for David Lee, Vice President
Address:4073 Belle Terre Blvd, Myrtle Beach, SC 29579
Phone: [phone]
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, ,� Nl l'!ih �• wbimabix a. Notary Public for the State of
County of rr , do hereby certify that
r LI 64 11(/nGaAe.. personally appeared before me this o
day of PL for , N13 , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
NNNN , WE /$G
X\16i}Oij�
:otc + . d
r� X40iAR y�
PUBOG
TNI'C ARp
SEAL
My commission expires41!130 C
�. OCT 0 3 2013
BY:
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

Permit Number: 070303
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMI'.
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 sedhnent through the emergency drain should be minimized to the
maximum extent practical.
- Once a year, a dam safety expert should inspect the embankment. 4::7C,* 1E1VE
s
After the wet detention pond is established, it should be inspected once a mo a�JL 15 2013
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inched in a
Coastal County). Records of operation and maintenance should be kept in a lap wn set
location and must be available upon request.
Inspection activities shall be performed as follwws. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
detention basin
Areas of bare soil and/or
erosive gullies have formed.
Regmde the soil if necessary to
remove the gully, and then plant a I
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
FVeetation is too short or too
Maintain vegetation at a height of
.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4

Permit Number.
(to be provided by DWQ)
Drainage Area Number.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: nerve nr
Swale
The l}pP is clogged.
a
Unclog the pipe. Dispose of the
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
Seam 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 BM?.
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 lants rather than spraying,
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area,
and control the algal growth.
pl
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray),
the basin surface.
JUL 15 2013
Form SW401-Wei Detention Basin O&M-Rev.4 SY' age 2 of 4

Permit Number.
(to be provided by DWQ)
Drainage Area Number:
BMP element:
I Potentialproblem:
How I will remediate theproblem;
The embankment
I Shrubs have started to grow
on the embankment.
Remove shrubs immediately,
Evidence of muskrat or
Use traps to remove muskrats and
beaver activityis 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
Ariake all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 5.5 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 5.5 feet in the forebay, the sediment
shall be removed.
BASE4 DIAGRAM
ill in the blanks)
Sediment Removal ZQQ P
-------------- -- Volume
Bottom Elevati 0.00 fl Min.
Sediment
Storage
FORE13AY
Form SW401-Wet Detention Basin O&M-Rev.4
Permanent Pool Elevation 6.50
Poolw____._..._-__®__________________________
Sediment Removal Elevation 1.00 Volume
Bottom Elevation
MAIN POND
CIEIVE
JUL 15 2013
'v: Page-3-of 4
Storage

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:The Overlook at Middle Sound (Formerly Ridge Field at Middle Sound)
BMP drainage area number:)
Print name:Brad Brundage
Title:City Manager for David Lee, Vice President
Address:4073 Belle Terre Blvd, Myrtle Beach, SC 29579
Date: (6-)13
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, Sh'itroh 9. ► V aft4abl K , a Notary Public for the State of
rr , Co ty of Hb VI' , do hereby certify that
arvnpersonally appeared before me this
day of ,, and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
\�. W EI G Ai
S i
PUBLIC
0
GTN C N?..
SEAL
My commission expires AD 11 1?
0, C24
.,IF CEIVE
BY:
Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4

Permit Number: 4-% Q 7)-103
(to be provided by DWQ)
Drainage Area Number: oZ
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record wiJ be kept fn. a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
® does ❑ does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potentialproblem: How I will remediate theproblem:
The entire BMP Trash/debris is present. Remove the trash/debris.
The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to
detention basin erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too Maintain vegetation at a height of
Form SW401-Wet Detention Basin O&M-Rev.4 n JUL 15 2013 P4,e4 1 of 4
RY:

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element: Potentialproblem:
The inlet device: pipe or The pipe is clogged.
swale
The pipe is cracked or
otherwise damaged.
Erosion is occurring in the
swale.
The forebay Sediment has accumulated to
a depth greater than the
original design depth for
sediment storage.
The vegetated shelf
The main treatment area
Erosion has occurred.
Weeds are present.
Best professional practices
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
dying.
Weeds are present.
Sediment has accumulated to
a depth greater than the
original design sediment
storage depth.
Algal growth covers over
50 % of the area.
Cattails; phragmites or other
invasive plants cover 50% of
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4
How I will remediate the probl
Unclog the pipe. Dispose of the
sediment off -site.
Replace the pipe.
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
Prune according to best professional
practices
Determine the source of the
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.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Consult a professional to remove
and control the algal growth.
Remove the plants by wiping there
with pesticide (do not spray).
CEIAn-_
JUL 15 20B
EBY
Page 2 of 4
:

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately,
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
fbeavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 7.20 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 7.20 feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(fill in the blanks)
0.00-------- Pe an
en
-- Volume
al -ft Min.
-
Sediment
Storage
FOREBAY
Form SW401-Wet Detention Basin O&M-Rev.4
Permanent Pool Elevation 7.20
Pool
------Sediment Removal Elevation 0.00 Volume
Bottom Elevation f--
MAIN POND
E�CE�VE
AUG 2 8 ` M3
Page 3 of
BV;__-----
1-ft
Storage

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:The Overlook at Middle Sound (Formerly Ridge Field at Middle Sound)
BMP drainage area number:2
Print name:Brad Brundage
Title:City Manager for David Lee, Vice President
Address:4073 Belle Terre Blvd, Myrtle Beach, SC 29579
Signature:
Date: /0 P ` t a
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, Jnaxd r J_ l WWLr W , a Notary Public for the State of
of 14n ITLI do hereby certify that
personally appeared before me this
day of 0(bbW ,�r'� 3 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
\\\`��titiuuuurrr�r���
WE/S
�lz` O .• fission•. G�''''%
y:gt \AOTAR),
PUBLIC
0�rHr CIARC��``�\\
SEAL
My commission expires A061 �, ' o 1'4-
11 11
(-_,,F_iVE
OCT 0 3 2013
Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4

Date Rpceim2d Fee Paid Permit Num
q I-
o as _ Iyl3ao� sv5 =- �� c77v3
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 070303
2. Project name: The Overlook at Middle Sound
3. Project street address: Overlook Drive
City: Wilmington County: New Hanover
ZIP: 28411
4. What, if any, changes have been made to the project as permitted? None
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https:/ldea-nc.gov/about/divisions/energy-
mineral-land-resources/en r - ineral-land-rules/stormw er- ro ram/ ost-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://dea.nc.gov/about/divisions/energy-mineral-land-
resources/enerav-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: D.R. Horton, Inc.
2. Signing Official's Name: Bradford Brundage =%.01=1 M III
3. Signing Official's Title: Vice President SEP 20 M
4. Mailing Address: 1341 Horton Circle BY.
City: Arlington State: TX ZIP: 76011
5. Street Address: 131 Racine Dr., Suite 201
City: Wilmington State: NC ZIP:
28403
6. Phone: [phone] Email: bcbrundageO-drhorton.com
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/0RK9. 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.
N/A 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:
❑ 1 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
® 1 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.
BB 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 stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
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).
hops://www.sosnc,gov/online services/search/by title/ Business Registration
r_-V9M9 W A
SEP 2 0 2022
U
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTEE'S CERTIFICATION
1, , the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my
knowledge, correcland complete.
Signature: Date: 11qljd
NOTARIZATION:
'Ir '� " , a Notary Public for the State of
Ogz-f+ t' , County of N C-W d4'1 -I tsU}')P— , do hereby certify
that personally appeared before me
this the day of 2000-' , and acknowledge the due
RY
'"' EXpVRES
COMMISSIOM��
My
instrument. Witness my hand and official seal,
SEP 2 0 2022
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

Permit No. !_
(to be provided by DWQ)
'AMA
N CDEWR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
.401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 1/1) must be printed, filled out and submitted along with all the required information.
L PROJECT INFORMATION
Project name The Overlook at Middle Sound
Contact person John D. Richards, PE
Phone number 843-839-8424
Date 11/9/2012 (Revised 06/26113)
Drainage area number Pond 1- Secondary BMP to Wet Pond #1
R. DESIGN INFORMATION
Site Characteristics
Drainage area
431,700.00
ftz
Impervious area
185,600.00 . ft3
% Impervious
0.43
Design rainfall depth
1.50
in
Peak Flow Calculations
1-yr, 24-hr rainfall depth
3.83
in
Rational C, pre -development
0.15
(unitless)
Rational C, post -development
0.47
(unitless)
Rainfall intensity: 1-yr, 24-hr storm
0.16
iNhr
Pre -development 1-yr, 24-hr peak flow
1.83
ft3/sec
Post -development 1-yr, 24-hr peak flow
0.16
ft3/sec
Pre/Post 1-yr, 24-hr peak control
-1.67
ft3/sec
Storage Volume: Non -SA Waters
Minimum required volume
ft
Provided volume
ft3
Sediment storage volume provided
ft3
Storage Volume: SA Waters
1.5' runoff volume
23578.00
ft3
Pre -development 1-yr, 24-hr runoff volume
6889.00
ft3
Post -development 1-yr, 24-hr runoff volume
60203.00
ft3
Minimum required volume
53314.00
ft3
Provided volume
63270.00
ft3
OK
Sediment storage volume provided
16,278.00
ft3
OK
Basin Design Parameters
Drawdown time
3.06
days
OK
SHWT elevation
6.00
fmsl
Basin bottom elevation
6.00
fmsl
Raise basin bottom, Must be at least 2-ft above SHWT OA
Storage elevation
11.00
fmsl
�'�����
Basin side slopes
3.0
:1
OK
Top elevation
12.00
fmsl
OK
Freeboard provided
1.00
ft
OK
Basin Bottom Dimensions
Basin length
162.00
ft
nECEIVE111111hn
Basin width
75.00
ft
Length to width ratio 2.00 :1 OK JUL 15 �013
6Y:
Form SW401-Dry Extended Detention Basin-Rev.3 Parts I. & II. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWQ)
Additional Information
Total runoff volume captured by basin
15.26
ac-in
Forebay is required
Forebay provided
N
(Y or N)
Is basin in a recorded drainage easement?
Y
(Y or N)
OK
Does basin capture all runoff at ultimate build -out?
Y
(Y or N)
OK
Is a sediment depth indicator included?
Y
(Y or N)
OK
Does the basin include a drain?
Y
(Y or N)
OK
GENE
JUL 15 2013
BY:
Form SW401-Dry Extended Detention Basin-Rev.3
Parts I. & II. Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials Sheet No.
•-A
C40
4TOk C 3.01
c3.3
CT.11
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,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
Basin dimensions
Pretreatment system,
Maintenance access,
Outlet structure,
Overflow device,
Flow distribution detail for basin inflow, and
- Vegetation specifications.
-14C C L 3. Section view of the basin 0" = 20' or larger) showing:
Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
Inlet and outlet structures.
v • W 6. A construction sequence that shows how the dry detention basin will be protected from sediment until the
entire drainage area is stabilized.
w"'�'L;O AWAt v 7. The supporting calculations. 57bA%%AWW AWAY
O 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
WO
�99_ k"RNH? 9. A copy of the deed restrictions (if required).
1r 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
t—EIVE
JUL 15 2013
RY:
Form SW401-Dry Extended Detention Basin-Rev.3 Part III. Required Items Checklist, Page 1 of 1

NCDENR
Permit No. 5% C>
(to be provided by DWQ)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part ill) must be printed, filled out and submitted along with all the required information.
yJECTINFORMiUM
Project name The Overlook at Middle Sound
Contact person John D. Richards, PE
Phone number 843-839.8424
Date 11/9/2012 (Revised 08/20/13)
Drainage area number Pond 2 - Secondary BMP to Wet Pond #2
Ill. DESIGN INFORMki _
Site Characteristics
Drainage area
Impervious area
% Impervious
Design rainfall depth
Peak Flow Calculations
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: I-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak control
Storage Volume: Non -SA Waters
Minimum required volume
Provided volume
Sediment storage volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum required volume
Provided volume
Sediment storage volume provided
Basin Design Parameters
Drawdown time
SHWT elevation
Basin bottom elevation
Storage elevation
Basin side slopes
Top elevation
Freeboard provided
Basin! Bottom Dimensions
Basin length
Basin width
Length to width ratio
326,700.00 ft
150,000.00 ft2
0.46
1.50 in
3.83 in
0.15 (unitless)
0.49 (unitless)
0.16 in/hr
5.69 ft3/sec
0.64 ft /sec
-5.05 ft3/sec
ft3
ft3
ft3
18917.00
ft3
5214.00
ft3
48302.00
ft3
43088.00
ft3
45731.00
ft3 OK
12,384.00
ft3 OK
2.56 days OK
5.45 fmsl
7.00 fmsl Raise bayt�
10.80 fmsl 45J-c a�,�„ bm?
3.0 :1 OK r\0(J r
11.80 fmsl OK Co
1.00 ft OK 9 M-113
236.00 ft 1EC IVE
60.00 ft AUt± 103
3.90 :1 OK G
BY:
Form SW401-Dry Extended Detpntion RRAn-Rev.3 Pat, I. & II. Design Summary, Page 1 of 2

Additional Information
Tgtal runoff volume captured by basin
Forebay provided
Is basin in a recorded drainage easement?
Does basin capture all runoff at ultimate build -out?
Is a sediment depth indicator included?
Does the basil i include a drain?
11.99 ac-in Forebay is required
N (Y or N)
Y (Y or N) OK
Y (Y or N) OK
Y (Y or N) OK
Y Cr or N) OK
Permit No.
(to be provided by DWQ)
AUGECEIVE
2 8 2013
RV:.
Form SW401-Dry Extended Detention Basin-Rev.3 Parts i. & H. Design Summary, Page 2 of 2

Permit No
Iil. REQUIRE© ITEMS CHECKLIST
(to be provided by D WQ)
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 beiow. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
OW 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,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement.
C3 V_ 2. Plan details (1" = 30' or larger) for the bioretention cell showing:
CS Basin dimensions
Pretreatment system,
Maintenance access,
Outlet structure,
Overflow device,
Flow distribution detail for basin inflow, and
Vegetation specifications.
TIC ► 1 1 3. Section view of the basin (1" = 20' or larger) showing:
Side slopes, 3:1 or lower,
Pretreatment and treatment areas, and
Inlet and outlet structures.
6. A construction sequence that shows how the dry detention basin will be protected from sediment until the
entire drainage area is stabilized.
Ankh
ON I L4..Ya,(r
Amw«
7, The supporting calculations. C.'tQ801\ 0.600R?
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
9. A copy of the deed restrictions (if required).
A17 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
ECIEME
JUL 15 2013
RY.
Form SW401-Dry Extended Detention Basin-Rev.3 Part III. Required Items Checklist. Page 1 of 1

�5vN o-7o303
1
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
i. PROJECT INFORMATION
Project name The Overlook at Middle_ Sound
Contact name John D. Richards, PE
Phone number 843.839-8424
Date
Drainage area number
January 8,2013 (Revised 06126/13)
Pond #1
11. DESIGN INFORMATION
The purpose of the LS-VFS Other: Explained below
Stormwater enters LS-VFS from A BMP
Type of VFS
Explanation of any 'Other" responses above
K Stormwater Enters the LS-VFS from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Design storm
Maximum amount of flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any "Other' responses above
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP during the 10-year storm
Maximum capacity of a 100-foot long LS-VFS
Peak flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any 'Other' responses above
of ware9
i0r
Engineered filter strip (graded & sodded, slope < 8%)
SW Coastal Rule for treatment of 'excess' discharge from wet pond #1 in SA Watershed
ft Do
not complete this section
of the form.
ft,
Do not complete this section
of the form.
%
Do not complete this section
of the form.
Do not complete this section
of the form,
cis
Do not complete this section
of the form.
min
Do not complete this section
of the form.
in/hr
Do not complete this section
of the form.
cfs
Do not complete this section
of the form.
Pick one:
cfs Do not complete this section of the form.
(Y or N) Do not complete this section of the form.
Wet detention pond
0 cfs
12.44 Cfs
10 cis
9.66 cis
Y (Y or N)
design storm discharges to a secondary bmp (dry pond #1)
��� 15 2013
Form SW401 - LS-VFS - Mune2012 - Rev.10 page 1 of 3

LS-VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per cfs
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation, at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swa!e at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10-year storm)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other" responses above
0 sq ft No forebay is required.
in
in
10
tvcfs
97
ft
100
it
50
ft
6.10
fmsl
5.70
fms=.
0.80
%
N.
(Y or N) OK
N`
(Y or N)
Y, (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
ft
ft
ft
It
it
1.96 fVsec
Other: Explained below
N (Y or N)
NIA (Y or
Piped to rip rap outlet protection since topography prohibited use of lined swale
W
B
Fie
FIVE
JUL 15 2013
RY:
Form SW401 - LS-VFS - 29June2012 Rev.10 page 2 of 3

II1. REQUIRED ITEMS CHECKLIST
EDIT 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.
Requried Item:
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),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (1' = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
3. Section view of the level spreader (1' = 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
Page or plan sheet number and any riotes:
-cl.!-i5Ci.l
570AM VJA-W pony
C3,G3.N
AV/T4
37C E IVE
JUL 15 2013
BY:
Form SW401 - LS-VFS - Mune2012 - Rev.10 Page 3 of 3

'AM
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
¢ IECT W-POWATION
S\41 07OM3
Of WATF9
1? 0
_m
> y
o
Project name
Contact name
Phone number
Date
Drainage area number
The Overlook at Middle Sound
John D. Richards, PE
843-839-8424
January 8,2013 (Revised 08/20/13)
Pond #2
The purpose of the LS-VFS
Other: Explained below
Stormwater enters LS-VFS from
A BMP
Type of VFS
Engineered filter strip (graded & sodded, slope < 8%)
Explanation of any 'Other' responses above
SW Coastal Rule for treatment of 'excess' discharge from wet pond #2 in SA watershed
If Stormwater Enters the LS-VFS from the Drainage Area
Drainage area
ft
Do not complete this section of the form.
Impervious surface area
fe
Do not complete this section of the form.
Percent impervious
%
Do not complete this section of the form.
Rational C coefficient
Do not complete this section of the form.
Peak flow from the 1 in/hr storm
cis
Do not complete this section of the form.
Time of concentration
min
Do not complete this section of the form.
Rainfall intensity, 1 0-yr storm
in/hr
Do not complete this section of the form.
Peak flow from the 10-yr storm
cfs
Do not complete this section of the form.
Design storm
Pick one:
Maximum amount of flow directed to the LS-VFS
cis
Do not complete this section of the form.
Is a flow bypass system going to be used?
(Y or N)
Do not complete this section of the form.
Explanation of any "Other' responses above
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP during the 10-year storm
Maximum capacity of a 100-foot long LS-VFS
Peak flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any. "Other' responses above
Wet detention pond
0 cis
16.72 cis
10 cis
9.79 cis
Y (Y or N)
design storm discharges to a secondary bmp (dry pond #2)
nIECEIVE P
AU61810Xi
BY.
Form SW401 - LS-VFS - 29J�ne2012 - Rev. page 1 of 3

LS-VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per cis
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
W
y (flow depth for 10-year storm)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other' responses above
0
sq ft No forebay is required.
in
in
10
f /cfs
96
ft
100
ft
50
ft
5.60
fmsl
4.60
fmsl
2.00
%
N
(Y or N) OK
N
(Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting cads.
It
ft
ft
ft
2.06 ft/sec
Other: Explained below
N (Y or N)
N/A (Y or N)
Piped to rip rap outlet protection since topography prohibited use of lined swale
W
1 '
1 '
1 ,
IM nt
I
1 I
i B i
AUG 2 8 200
BY:
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 2 of 3

Jill. R1=WRED ITEMS CHECKLIST
EDIT 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.
Requried Item:
1. Plans (V - 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),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (V = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
3. Section view of the level spreader (1" - 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
If a non -engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
B. A copy of the signed and notarized operation and maintenance (0&M) agreement.
rie
Page or plan sheet number and any notes:
gG1.I- C-CIS
S'r_4W W4f6�t R.C.AGAT
CT.W
A'"Kvl
ECEIVE
JUL 15 1013
BY:
Form SW401 LS-VFS - 29June2012 - Rev.10 Page 3 of 3

Permit No 5)-g 070M3
(to be provided by DWQ)
ATA
HCDENR
STORM1iUATER 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 ill) must be printed, filled out and submitted along with all of the required information.
1. PROJECT 11INFORMATION
Project name
Contact person
Phone number
Date
Drainage area number
The Overlook at Middle Sound
John H. Richards, PE
843-839-8424
11/9/2012 (Revised 06/26/13)
Pond 1
1L DESIGN INFORMATION
Site Characteristics
Drainage area
431,700 fe
Impervious area, post -development
185,600 ft2
% impervious
42.99 %
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required ff3
Volume provided ft3
Storage Volume: SA Waters
1.5" runoff volume
23,578 ft3
Pre -development 1-yr, 24-hr runoff
6,889 ft3
Post -development 1-yr. 24-hr runoff
60,203 ft3
Minimum volume required
53,314 ff3
Volume provided
55,393 ft3
Peak Flow Calculations
Is the prelpost control of the 1 yr 24hr storm peak flow required?
Y (Y or N)
1-yr, 24-hr rainfall depth
3.8 in
Rational C, pre -development
0.15 (unitless)
Rational C, post -development
0.47 (unitless)
Rainfall intensity: 1-yr, 24-hr storm
0.16 in/hr OK
Pre -development 1-yr, 24-hr peak flow
1.83 ft3/sec
Post -development 1-yr, 24-hr peak flow
0.16 ft3/sec
Pre/Post 1-yr, 24-hr peak flow control
-1.67 ft3/sec
Elevations
Temporary pool elevation
8.60 fmsl
Permanent pool elevation
6.50 fmsl
SHWT elevation (approx. at the perm. pool elevation)
6.5D fmsl
Top of 1 Oft vegetated shelf elevation
7.00 fmsl
Bottom of 10ft vegetated shelf elevation
6.00 fmsl
Sediment cleanout, top elevation (bottom of pond)
1.00 fmsl
Sediment cleanout, bottom elevation
0.00 fmsl
Sediment storage provided
1.00 ft
Is there additional volume stored above the state -required temp. pool?
Y ` (Y or N)
Elevation of the top of the additional volume
8.6 fmsl OK
JUL 15 2013
BY:
Form SW401-Wet Detention Basin-Rev.9.4/18/12 Parts I. & II. Design Summary, Page 1 of 2

Permit No
(to be provided by DWG)
Ill. DESIGN INFORMATION
Surface Areas
Area, temporary pooi 29,095 ft'
Area REQUIRED, permanent pool 16,405 ff
SAIDA ratio 3.80 (unitless)
Area PROVIDED, permanent pool, Aperm pool
21,750 If
OK
Area, bottom of 1 Oft vegetated shelf; Aw_, shell
18,286 ft'
Area, sediment cleanout, top elevation (bottom of pond), Ahut..pond
8,973 fe
Volumes
Volume, temporary pool
55,393 ft
OK
Volume, permanent pool, Vperm-pool
77,206 f;s
Volume, forebay (sum of forebays if more than one forebay)
15,570 fts
Forebay % of permanent pool volume
20.2% %
OK
SAIDA Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
Y (Y or N)
Mountain/Piedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
3.80 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, Vpe„o_woi
77,206 ft'
Area provided, permanent pool, Aperm. pool
21,750 W
Average depth calculated
- 3.55 ft
OK
Average depth used in SAIDA, de (Round to nearest 0.5ft)
ft
Calculation option 2 used? (See Figure 10-2b)
Y (Y or N)
Area provided, permanent pool, Ape._p00i
21,750 fe
Area, bottom of 1 Oft vegetated shelf. Ah eheN
18,286 W
Area, sediment cleanout, top elevation (bottom of pond), Abol-ond
8,973 Y
'Depth' (distance b/w bottom of 1Oft shelf and top of sediment)
5.00 ft
Average depth calculated
4.19 ft
OK
Average depth used in SAIDA, d,,, (Round to down to nearest 0.5h)
4.0 It
OK
Drawdown Calculations
Drawdown through orifice?
Y . (Y or N)
Diameter of orifice (if circular)
3.00 in
Area of orifice (if -non -circular)
in
Coefficient of discharge (CD)
0.60 (unitless)
Driving head (Ho)
0.66 ft
Drawdown through weir?
N (Y or N)
Weir type
(unitless)
Coefficient of discharge (CW)
(unitless)
Length of weir (L)
ft
Driving head (H)
ft
Pre -development 1-yr, 24-hr peak flow
1.83 fe/sec
Post -development 1-yr, 24-hr peak flow
0.16 ft/sec
Storage volume discharge rate (through discharge orifice or weir)
0.19 fe/sec
Storage volume drawdown time
3.22 days
OK, draws down in 2.5 days.
Additional Information
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10.0 ft
OK
Length of flowpath to width ratio
4 :1
OK C
'4.,.,,�• !� WE
Length to width ratio
3.5 :1
OK
Trash rack for overflow & orifice?
Freeboard provided
Y (Y or N)
TO ft
OK
OK JUL 151013
Vegetated filter provided?
N (Y or N)
OK
Recorded drainage easement provided?
Y (Y or N)
OK
Capures all runoff at ultimate build -out?
Y (Y or N)
OK
Drain mechanism for maintenance or emergencies is:
Temporary, portable pump
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Parts I. & II. Design Summary, Page 2 of 2

Permit
(to be provided by DWQ)
Ili. REQUIRE© ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result In a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
�.�_ C 1% 4A
1. Plans (1" 50' or larger) of the entire site showing:
C;• S
- 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.
«• t 2. Partial plan (1 " = 30' or larger) and details for the wet detention basin showing:
CT-1 - Outlet structure with trash rack or similar,
�3• �� Maintenance access,
Permanent pool dimensions,
�C �•� Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
Stu. 3. Section view of the wet detention basin (1"= 20' or larger) showing:
Side slopes, 3:1 or lower,
Pretreatment and treatment areas, and
Inlet and outlet structures.
C 3 J 0' 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
#jV4WW G on the plans prior to use as a wet detention basin.
SO—A_AW5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided. .
Jf� G�• N 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
X7 7. The supporting calculations. 5'To" a OvA'f
8. A copy of the signed and notarized operation and maintenance (O&M) agreement.
#41040 9. A copy of the deed restrictions (if required).
10. A soils report that is based upon an actual field investigation, soil borings; and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.9-4/18/12
�=CE IE
` JUL 15 2013
Part III. RMfed11wm r�� 1-of 1

Permit No. tmj 0 70303
(to be provided by DWQ)
�P v �t'at Of� W ATF9
O G
14CDENR y r
o -mac
STORMVVATER 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 Ill) must be printed, filled out and submitted along wiM all of the required information.
,_ lIIIIIQkIECT INFORMATIOlt(
Project name The Overlook at Middle Sound
Contact person John H. Richards, PE
Phone number 843-839.8424
Date 11/9/2012 (Revised 08/20/13)
Drainage area number Pond 2
�'3lGk INFORMATION .
Site Characteristics
Drainage area
Impervious area, post -development
% impervious
Design rainfall depth
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the 1 yr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1 -yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of loft vegetated shelf elevation
Bottom of 1 oft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
326,700 fly
150,000 fe
45.91 %
1.5 in
l
i
18,917 fe
5,214 fe
48,302 ff
43,088 ff3
45,479 fe
Y (Y or N)
3.8 in
0.15 (unitless)
0.49 (unidess)
0.16 inthr OK
5.69 ff /sec
0.64 fe/sec
-5.05 f f /sec
8.80 hSI
7.20 fmsl
7.20 fmsl
7.70 fmsl
6.70 fmsl
0.00 fmsl
-1.00 fiiul
1.001t
IEL
EC'eNitE
AUG 2- B" 2013
RY:
(Y or N)
10.1 fmsl Insufficient Must equal the temp. pool elev. previously entered.
Form SW401-Wct Di2mrdiar. Basin-Rev.9-V18112
FLOW i. & ii. Design Summary, rage i of 2

Permit
(to be provided by DWQ)
Df:SfGw iwFQNATION -- -- '"
Surface Areas
Area, temporary pool
Area REQUIRED, permanent pool
SAIDA ratio
Area PROVIDED, permanent pool, A,._p.,
Area, butivrn of Tuft vegetated siieif, AboLsher
Area, sediment cleanout, top elevation (bottom of pond), A LP.d
Volumes
Volume, temporary pool
Volume, permanent pool, Vperm,00j
Volume, forebay (sum of forebays if more than one forebay)
Forebay % of permanent pool volume
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, VP,.,.,
Area provided, permanent pool, Apeimyool
Average depth calculated
Average depth used in SAIDA, day, (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, Apen joi
Area, bottom of 1 Oft vegetated shelf, An LAdf
Area, sediment cleanout, top elevation (bottom of pond), ktlld
"Depth" (distance b/w bottom of loft shelf and top of sediment)
Average depth calculated
Average depth used in SAIDA, d811, (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 (Co)
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 A orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
31,115 fe
11,696 le
3.58 (unitless)
23,900 fe OK
20,014
6,196 fe
45,479 fe OK
96,836 fe
19,736 fe
20.4% % OK
90 %
Y (Y or N)
N (Y or N)
3.58 (unitless)
N (Y or N)
96,836 ft
23,900 fe
3.74 it OK
it
Y (Y or N)
23,900 fe
20,014 fe
6,196 fe
6.70 it
4.85 it OK
4.5 it Insufficient. Check calculation.
[a(# A3
_(Y or N)
3.00 in
_ in'
0.60 (unitless)
0.49 it
_(Y or N)
_ (unitless)
_ (unitless)
it
it
5.69 fe/sec
0.86 fe/sec
0.17 l /sec
3.01 days OK, draws down in 2-5 days.
3 :1
OK
10 :1
OK
10.it 3
3 :1
OK
���'��
2.0 :1
OK
Y (Y or N)
OK
AUG 2 8 2M3
1.0 it
OK
3
N (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
Temporary, portable pump
Form SW401-Wet Detention Basin-P.ov.e 4!'.&112 Faris i. & H. Design Summary, Page 2 of 2

Permit No.
(to be provided by D WQ)
gf. REQUIRE© ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials
Sheet No.
�i •�/
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.
TI>wQ
tY,N
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
C19,1 I
- Outlet structure with trash rack or similar,
C�
Maintenance access,
Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
quk
» )%
3. Section view of the wet detention basin (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
Lim
t IXI
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
pojyO1X &
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
entire drainage area is stabilized.
�a�fkiD
/l
7. The supporting calculations. pra �/f Wooer
!AA "ACA10 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
11W A011110CW 9. A copy of the deed restrictions (if required).
05M A7_%PJ 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
JUL 15 2013
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Pa Required Items Checklist, ge 1 of 1

High 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, Brad Brundage , acknowledge, affirm and agree by my signature below, that i will cause the following
deed restrictions and 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 SW8 070303, 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 built -upon area per lot, in square feet, is as listed below.
Lot # BUA Lot # BUA Lot # BUA Lot # BUA
34 4116 35 4470 1-33 4000 36-42 4000
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. A'u• a
SO ,,'Zs
7. Each lot will maintain a p** 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 swa/es 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.
.A}rhc1e = 5ech ami I Z, 24 n-eeW_r A 1,7e %fca--J ceoC OnC�
a`,, e'? de d. V Da S 85 2 PG 169
Form DRPC-3 Rev.2 05Nov2009
MAY 16 2019
Pagel of 2 BY'

High Density Residential Subdivisions
Deed Restrictions & Protective Covenances
Signature:A(A--. 11* Date:
1, , a Notary Public in the
State ofU-jgflh C, County of
do he eby certify that Bradford C. Brundage, PE personally appea%ed before me this the
dayof 20 and acknowledge ,�,
tA
xecution of the foregoing instrument. Witness my hand and official seal,
SEAL
S
Hll S SF j,
My Commission expires •``AP "'n ''�
° WARdr
PUBOP
tH' C P0�
MAY 16 206
BY:
Form DRPC-3 Rev.2 05Nov2009 Page 2 of 2