SW7071211_CURRENT PERMIT_20160822

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW%7C
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
(2
YYYYMMDD

y,rvg F
a
L Y
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Mr. Timothy M. Cafferty
Outer Banks Blue, LLC
P.O. Box 1220
Kitty Hawk, NC 27949
Dear Mr. Cafferty:
l J -Ko
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
TRACY DAVIS
August 22, 2016 Director
Subject: Permit No. SW7071211
Outer Banks Blue, LLC
High Density Stormwater Project
Dare County
The Washington Regional Office received a completed Stormwater
Name/Ownership Change Application for the subject project on July 19, 2016. Staff review
and an on -site inspection has determined that the permit can be reissued. We are forwarding
Permit No. SW7071211 dated August 22, 2016 to Outer Banks Blue, LLC. for the
construction and operation of two infiltration basins to serve this project located on the
southwest corner of the intersection of US 158 and First Flight Run in Kitty Hawk, North
Carolina.
This permit shall be effective from the date of issuance un December 28 2 nd
shall be subject to the conditions and limitations as specified the irr. ease pay special
attention to the Operation and Maintenance requirements in this permit. Failure to establish
an adequate system for operation and maintenance of the stormwater management system
will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable,
you have the right to request an adjudicatory hearing upon written request within thirty (30)
days following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office
of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless
such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter,
please contact me at [phone].
Sincerely,
Rog K. T p e —
Environmental Engineer
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
943 Washington Square Mall I Washington, NC 27889
252-946-6481 T

State Stormwater Management Systems
Permit No. SW7071211
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Outer Banks Blue, LLC
3732 N. Croatan Highway, Kitty Hawk, NC
Dare County
FOR THE
construction, operation and maintenance of stormwater management systems in
compliance with the provisions of 15A NCAC 2H.1000 (hereafter referred to as the
"stormwaterrules') and the approved stormwater management plans and specifications and
other supporting data as attached and on file with and approved by the Division of Energy,
Mineral, and Land Resources and considered a part of this permit for two infiltration basins
to serve the development located on southwest corner of the intersection of US 158 and
First Flight Run in Kitty Hawk, North Carolina.
This permit shall be effective from the date of issuance until December 28, 2021 and shall
be subject to the following specified conditions and limitations:
DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
State of North Carolma I Environmental Quality I Energy, Mineral and Land Resources
943 Washington Square Mall. I Washington, NC 27889
252-946-6481 T

2. This stormwater system has been approved for the management of stormwater runoff
as described in Section 1.6 of this permit. The stormwater control has been designed to
handle the runoff from 30,723 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated in this permit, and per
approved plans.
4. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system.
5. The following design criteria have been provided in the infiltration basins and must be
maintained at design condition:
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
PROJECT DATA
Outer Banks Blue, LLC
SW7071211
Dare County
Outer Banks Blue, LLC
P.O. Box 1220, Kitty Hawk, NC 27949
Receiving Stream and index No.: Kitty Hawk Bay, 30-19
Classification of Water Body: Sc
Total Site Area: 1.18 ac
Design Storm, inches: 1.0
State of North Carolina I Envnonmental Quality I Energy, Mineral and Land Resources
943 Washington Square Mall. I Washington, NC 27889
252-946-6481 T

INFILTRATION BASIN #1 INFILTRATION BASIN #2
Drainage area to Basin: 0.23 ac 0.95 ac
Impervious area in drainage basin: 5,875 sf 24,848 sf
Infiltration Basin Depth: 1.50 ft 3.50 ft
Basin bottom elevation, FMSL: 9.0 7.0
Bypass Overflow Elevation, FMSL: 11.50 11.50
Type of Soil: Newhan fine sand Newhan fine sand
Provided Storage Volume: 518 cf 7,594 cf
Time to Draw Down: 3 days 3 days
Expected Infiltration Rate, in/hr: 20.0 20.0
6. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size
b. Project name change
C. Transfer of ownership
d. Redesign or addition to the approved amount of built -upon area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should
require a modification to the permit.
State of North Carolina I Environmental Quality I Energy, Mineral and Land EeSOUrCea
943 Washington Square Mall I Washington, NC 27899
252-946-6481 T

7. 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.
SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and
maintenance of the stormwater management system.
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 surfaces except roads.
During construction, erosion shall be kept to a minimum and any eroded areas
of the system will be repaired immediately.
The facilities must be properly maintained and operated at all times. The approved
Operation and Maintenance Plan must be followed in its entirety and maintenance
must occur at the scheduled intervals.
The permittee shall at all times provide the operation and maintenance necessary to
assure the permitted stormwater system functions at optimum efficiency including,
but not limited to:
a. Semiannual scheduled inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved plans and
specifications
f. Debris removal and unclogging of outlet structure, orifice device and catch
basins and piping.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DEMLR. The records will indicate the date, activity, name
of person performing the work and what actions were taken.
State of North Carolina I Environmental Quality I Energy, Mmeral and Land Resources
943 Washington Square Mall I Washington, NC 27889
252-946-6481 T

5. This permit shall become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans and specifications, and other
supporting data.
6. Upon completion of construction 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. Mail
the Certification to the Washington Regional Office, 943 Washington Square Mall,
Washington, North Carolina, 27889, attention Division of Energy, Mineral and Land
Resources.
7. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of five years from the date of the completion of construction.
III. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must
be submitted to the Division accompanied by an application fee, documentation from
the parties involved, and other supporting materials as may be appropriate. The
approval of this request will be considered on its merits and may or may not be
approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject
the Permittee to enforcement action by the Division, in accordance with North
Carolina General Statute 143-215.6(a) to 143-215.6(c).
3. The issuance of this permit does not preclude the Permittee from complying with any
and all statutes, rules, regulations, or ordinances which may be imposed by other
government agencies (local, state, and federal) which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including
those as may be required by this Division, such as the construction of additional or
replacement stormwater management systems.
5. The permitee grants DEQ Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
943 Washington Square Mall. I Washington, NC 27889
252446-6481 T

6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or termination
does not stay any permit condition.
An application for permit renewal must be submitted at least 180 days prior the
expiration of this permit along with the appropriate processing fee. The permit expires
on December 28, 2021.
Permit issued this the 22 nd day of August, 2016.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
For Tracy E. Davis, PE, CPM, Director
Division of Energy, Mineral, and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW7071211
State of North Carolina I Enuonmental Quality I Energy, Mineral and Land Resources
943 Washington Square Mall I Washington, NC 27889
252-946-6481 T

ECEIVE
JUN 2 19 2011
R&E Developments, LLC — Bank of Commonwealth, Kitty Hawk 7,
Stormwater Permit No. SW7071211 We " WARD
Designer's Certifi4ation �L=2hciiaark E��, any, r? (7
I, \ I CTo (L ln1 la ITS as a
duly K./ Z7 P¢9
registered Professional Engineer in the State of North Carolina, having been authorized to observe
(periodically/weekly/full time)
the construction of the project, B A i"J K or
/ t
MW) OnJ W LIAt)j---T( y K I� RrlVAK (Project)
for R +F �S�e�12IGOvr P �, iLC (Project Owner)
hereby state that to the best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial compliance and intent of the
approved plans and spe9ific4tiT_s--, , % n _
Signature
Registration Number
Date (I:'I/2_1 A/
Certification Requirements:
V 1. The drainage area to'the system contains approximately the permitted acreage.
2. The drainage area to ttiesystem contains no more than the permitted amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff drains to the
system.
4. All roof drains are located such that the runoff is directed into the system.
L_5. The outlet/bypass structure elevations are per the approved plan.
NL_6. The outlet/bypass structure is located per the approved plans.
7.
Trash rack is provided on the outlet/bypass structure.
_'�,_&
All slopes are grassed with permanent vegetation.
9.
Vegetated slopes are no steeper than 3:1.
\�
\
10.
The inlets are located per the approved plans and do not cause short-circuiting of the system.
�\
11.
The permitted-amounts'of surface area'and/or volume have been provided.
12.
All required design depths are provided.,
13,
All required parts of the system are provided.,
4
14.
The required system dimensions are provided per the approved plans.

DWQ USE ONLY
Date Received Fee Paid Permit Number
State of North Carolina
5wkK I VI IVo %
Department of Environment and Natural Resources
oE 0
_ avq Eel-
0 Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
DEC 13 2007 This form may be photocopied for use as an original
1�l pd KEAR . r5
��LGENERAL'INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
d- C bVyf .5Pr0 rn7T s C.C. c
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
RAa6 UPPALApATI ftWAMa)N M0hBF9
3. Mailing Address for person listed in item 2 above:
S-41 Uc>`Alo TRArL Surd'
City: (26(LotrL-A State: AC. zip: 2,497-
Phone: (.2i 2 1 n �1i53 - 3600
Email: ra�V tf B� I(t2rbJaoJfot)�,�o�n
Fax: ( 151- ) y9I - $vim
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
BAMK OR CorAmci .IWEALTl4 K 1-il y liWK
5. Location of Project (street address):
City: K tTTy I1AWK County: D A Rz;,-
6. Directions to project (from nearest major intersection):
t�R<SFEAT`f afl CX-,?KER (OF 0S in
F,RCT F11cKT RUN 1, KnTy 14AUK
7. Latitude: 3! o O �jt N I' H Longitude: --S ` cl 1(, " W of project
8. Contact person who can answer questions about the project:
Name: VI C-t02 OF1 1TE . ? . Telephone Number: ( 2,52.-
Email: 18n kf^mq leaur���Q� �bLrQ �t O ^'1
II. PERMIT INFORMATION:
1. Specify whether project is (check one): gNew ❑Renewal ❑Modification
FormSWU-101 Version8.07 Page 1 of

1�

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit numberN/A and its issue date (if known)
3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP []Other
4. Additional Project Requirements (check applicable blanks):
❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater will be conveyed via sheet flow to catch basins as well as directly to infiltration basins where it
will infiltrate into the sandy soils.
2. Stormwater runoff from this project drains to the Pasquotank River basin.
3. Total Site Area: 1.18 acres 4. Total Wetlands Area: 0 acres
5. 100' Wide Strip of Wetland Area: N/A acres (not applicable if no wetlands exist on site)
6. Total Project Area":1.18 acres
7. Project Built Upon Area:59.92 %
8. How many drainage areas does the project have72
9. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Name
Kitty Hawk Bay
Kitty Hawk Bay
Stream Class & Index No.
SC
SC
Drainage Area (so
9796
41464
Existing Impervious` Area (so
0
0
Proposed Impervious'Area (so
5875
24848
% Impervious' Area (total)
1 59.97
59.93
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings (sf)
3446
3447
On -site Streets (so
0
0
On -site Parking (so
1988
20437
On -site Sidewalks (sf)
257
245
Other on -site (so
184
719
Off -site (sf)
N/A
N/A
Total (so:
5875
24848
lrupervious area is defined as the built upon area including, but act linuted to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
"Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation.
3v —1i
Form SWU-101 Version 8.07 Page 2 of

101 How was the off -site impervious area listed above derived? N
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following deed restrictions and protective covenants are required to be recorded for all subdivisions,
outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot
number, size and the allowable built -upon area for each lot must be provided as an attachment.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded deed restrictions and protective covenants for this
project shall include all the applicable items required in the above form, that the covenants will be binding
on all parties and persons claiming under them, that they will run with the land, that the required covenants
cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the
sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BUT specified for this project Contact the Stormwater and General Permits Unit at (919) 733-5M for the status
and availability of these forms.
Form SW401-Low Density
Low Density Supplement
Form SW401-Curb Outlet System
Curb Outlet System Supplement
Form SW401-Off-Site System
Off -Site System Supplement
Form SW401-Wet Detention Basin
Wet Detention Basin Supplement
Form SW401-Infiltration Basin
Infiltration Basin Supplement
Form SW401-Infiltration Trench
Underground Infiltration Trench Supplement
Form SW401-Biorelention Cell
Bioretention Cell Supplement
Form SW401-Level Spreader
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Form SW401-Wetland
Constructed Welland Supplement
Form SW401-Grassed Swale
Grassed Swale Supplement
Form SW401-Sand Filter
Sand Filter Supplement
Form SWU-101 Version 8.07 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at hnp://h2o.enr.state.nc.us/su/msi maos.htm)
Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
Ur.-)
• Original and one copy of the Deed Restrictions & Protective Covenants Form
J44
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
VIE Li
• Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR
V(ELJ
• Calculations & detailed narrative description of stormwater treatment/management
Or"
• Copy of any applicable soil report
VC0
• Three copies of plans and specifications (sealed, signed & dated), including:
J£w
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individualorfiirJrm): J1CCok WN1� (-ANb�flRK �^S�.�you.yP,C.
Mailing Address: .<2>. L'-X m16
City: K �Tty aAaK State: NL Zip: 27-14�
Phone: ( 2S2 ) 255- 51 L Fax: ( 2-S)- ) )L55 - 099 L
Email:
VIIL APPLICANTS CERTIFICATION
I, (print or type name of person listed in General Information, item 2) R-A S Ny - V P P A LA-P A-1 1
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 21-1.1000. 1
Signature:Date: 12 l-+J 0�
Form SWU-101 Version 8.07 Page 4 of 4

Permit No.
(to be Prowled by DWQ)
TASTORMWATER MANAGEMENT PERMIT APPLICATION FORM
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
Contact Person
Phone Number
Date
Drainage Area Number
Bank
Revised (typed) 12/24/07 1-
OF WaiFH
Or
's
II. DESIGN INFORMATION
Site Characteristics
Drainage area
9,796.00 flz
Impervious area
5,875.00 fe
Percent impervious
0.60
Design rainfall depth
1.0 in
Peak Flow Calculations
Is prelpost control of the 1-yr 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr Intensity
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Pre/Post 1-yr, 24-hr peak flow control
Storage Volume: Non -SR Waters
Minimum design volume required
Design volume provided
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Basin Design Parameters
Drawdown time
Basin side slopes
Basin bottom elevation
Storage elevation
Top elevation
Basin Bottom Dimensions
Basin length
Basin width
Bottom SA
N
(Y or N)
N/A
in
N/A
In/hr
NIA
ff'/sec
N/A
ff3/sec
#VALUE!
ft'/sec
490 'fl'
1,415 ft'
N/A in
N/A ft3
NIA ff3
#VALUE! it'
N/A ft3
SP
>20 n/hr
3.50 fmsl
3-Jan days
4
:1
9.00
fmsl
10.50
fmsl
11.50
fmsl
45 ft
2 8
105 e
OK for non -SR waters 5 f-7,8 ;d`". r-QA-
$96 \nAlre
OK
OK
OK
Forth SW401-InPolrabon Sawn-Rev.1
Parts 1. a II Design Summary, Page 1 of 2

Permit No.
(to be pmvidad by DWLy
'Additional Information
Total runoff volume captured by basin
0.39
ac-in
OK
Length of vegetative filter for overflow
55
ft
OK
Distance to structure
5
ft
Too close to structure, must be minimum of 15-ft downgradient
Distance from surface waters
500+
ft
OK
Distance from water supplywell(s)
500+
ft
OK
Separation from impervious soil layer
20+
ft
OK
Naturally occuring soil above shwt
55
ft
OK
Bottom covered with 4-in of clean sand)
Y
(Y or N)
OK
Recorded drainage easement provided?
nla
(Y or N)
OK
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Bypass provided for larger stones?
Y
(Y or N)
OK
Pretreatment device provided
Sump in C.B
Form SW401-Infiftration Basin -Rev 1 Parts I & 11 Design Summary, Page 2 of 2

Permit No.
(to be pmvided by DWC)
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.
\k:L�
G_
1. Plans (1' - Sly or larger) of the entire site showing:
Design at ultimate build -out,
- Off -site drainage (d applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
1, Overflow device, and
ia16-
Boundaries of drainage easement
2. Partial plan (1' = XY or larger) and details for the inlT6ration basin showing:
-BypassstnKWre, NIA
- Maintenance access
- Basin bottom dimensions,
- Basin cross-section with benchmark for sediment deanout,
- Flow distribution detail for inflow,
- Vegetated fitter, and
A
- Pretreatment device.
Section view of the infiltration basin (1' = 217 or larger) Mowing:
- Pretreatment and treabnent areas, and 1 Njm
-Inlet and outlet structures. — 141A
4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
Irk A'a 'gym 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration ifs. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
J
G-Z
6. An assurance that the installed system will meet design specifications upon initial operation once the
L
project is complete and the entire drainage area is stabilize&
7. A construction sequence that shows how the infiltration basin will be protected from sediment until the
J�cs
entire drainage area is stabilized.
8. The supporting calculations.
hC�
9. A copy of the signed and notarized inspection and maintenance (I&M) agreement
4
tj ]A
10. A copy of the deed restriction.
Form SW401-Infiltration Basin-Rev-1 Page 1 of 1 Part ill. Required Items Cheddist, Page 1 of 1

Permit
(to be pmwded by DWQ)
//�� �Q, WArE,
®c
m" STORMWATER MANAGEMENT PERMIT APPLICATION FORM oo~
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part ///) must be printed, filled out and submitted along with all of the required information.
Contact Person
Phone Number
Date
Drainage Area Number
Revised (typed)12124/07
2
II. DESIGN INFORMATION
Site Characteristics
Drainage area
41,464.00 ft2
Impemnous area
24,848.00 ftz
Percent impervious
0.60
Design rainfall depth
1.0 in
Peak Flow Calculations
Is pre/post control of the 1-yr 24-hr peak flow required?
N
, (Y or N)
1-yr, 24-hr runoff depth
NIA
in
1-yr, 24-hr intensity
NIA
irJhr
Pre -development 1-yr, 24-hr runoff volume
NIA
83/sec
Post -development 1-yr, 24-hr runoff volume
NIA
ft'/sec
Pre/Post 1-yr, 24-hr peak flow control
#VALUE!
ft/sec
Storage Volume: Non -SR Waters
Minimum design volume required
2,071
its
Design volume provided
10,314
fp
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
NIA
in
Pre -development 1-yr, 24-hr runoff
N/A
ft3
Post -development 1-yr, 24-hr runoff
N/A
it,
Minimum volume required
#VALUE!
it'
Volume provided
N/A
it,
Soils Report Summary
Soil type
SP
Infiltration rate
>20
in/hr
SHWT elevation
3.50
fmsl
Basin Design Parameters
Drawdown time
3-Jan
days
Basin side slopes
4
:1
Basin bottom elevation
7.00
(rust
Storage elevation
10.50
fmsl
Top elevation
11.50
first
Basin Bottom Dimensions
Basin length
75
ft
Basin width
8
ft
Bottom SA
587
fe
OK for non -SR waters 71594 -f{3 -:t>
21720 -R3 Wy�R
OK
OK
OK
Form SW401-Infiarabon Basin-Rev.1 Parts I. a It. Design Summary, Page 1 of 2

Permit No.
(robe provided by DWQ)
Additional Information
Total runoff volume raptured by basin
Length of vegetabve filter for overflow
Distance to structure
Distance from surface waters
Distance from water supply well(s)
Separation from impervious soil layer
Naturally occuring soil above shwt
Bottom covered with 4-in of dean sand?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Bypass provided for larger storms?
Pretreatment device provided
2.84
ac-in
55
ft
125
ft
500+
ft
500+
ft
20+
It
3.5
ft
Y
(Y or N)
n/a
(Y or N)
Y
(Y or N)
Y
(Y or N)
Sumo in C.B.
Maximum of 2 acre -inches allowed
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
corJ• agED —M 134Sa+
Form SW401-Infiaration Basin -Rev 1 Parts I. a 11 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.
Pagel Plan
Initials
Sheet No.
OCA's
_
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,
- Recorded drainage easement and public right of way (ROW),
r. Overflow device, and
A
:lo-
5 1
Boundaries of drainage easement
s
2. Partial plan (14 = W or larger) and details for the infiltration basin showing:
- Bypass structure, NIA
- Maintenance access,
- Basin bottom dimensions,
- Basin cross-section with benchmark for sediment cieanout,
- Flow distribution detail for inflow,
- Vegetated filter, and
NIA U 1 - Pretreatment device.
Section view of the infiltration basin (1' = 20' or larger) showing:
-Pretreatment and treatment areas, and ti N/S4
- Inlet and outlet structures. � "JA
C s c s . 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
0 A-Q : m, 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
G-Z
6. An assurance that the installed system will meet design specifications upon initial operation once the
_ I
project is complete and the entire drainage area is stabilized.
7. A construction sequence that shows how the infiflration basin will be protected from sediment until the
entire drainage area is stabilized.
�d�
r
irk 5
8. The supporting calculations.
9. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
ttA �
O )A
10. A copy of the deed restriction.
Fomn SW4014 fihration Basin-Rev.1 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1

DEC 13 2U07
Infiltration Basin Inspection and Maintenance Agreement
MElQAY1%%.RQ
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:
— The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
— Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetatiorL
— The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration 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 inspection 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
Areas of bare soil and/or
Regrade the soil if necessary to
infiltration basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide time and a
one-time fertilizer application.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
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.

BMP element:
Potentialproblem:
How I will remediate theproblem:
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
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
A visible layer of sediment
Search for the source of the
has accumulated.
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. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Water is standing more than
Replace the top few inches of filter
5 days after a storm event
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
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).
The embankment
Shrubs or trees have started
Remove shrubs or trees
to grow on the embankment
immediately.
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.

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.
Print name: RA7 U V. UPFAh-APA 1 I
Title: NIA IJ A G 1 iJ Cp M G M S& 2
Phone:
LE C-Alpt—IAt_ Itjyc—rTMC--NtS LLL
Q"! oCCzkV Traill, S•.:4.4iCam ILca,Nc.2'492�
53 36o6
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, A M M k� a Notary Public for the State of
(JaA n CAPz)U IJW County of •{uCIL , do hereby certify that
REHk V • Ll-y g u D q-[ - personally appeared before me this 1
day of , a0 b-7 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
a lt��
TAMMY J. FINCHAM
Notary Public
North Carolina
Currituck County
SEAL
My commission expires -1- 51(D L)1 1