SW7020216_CURRENT PERMIT_20060523

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW 706z,/v(o
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
0 5-;?3
YYYYMMDD

�OF W A T�9Q Michael F. Easley, Govemor wa--tld
William G. Ross Jr., Secretary
t/1 North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
May 23, 2006
Mr. Dan Scanlon
Currituck County Manager
PO Box 30
Currituck, NC 27929
Subject: Stormwater Permit No. SW7020216-MOD
Currituck County Law Enforcement
Center Kitchen Addition
High Density Project
Currituck County
Dear Mr. Scanlon:
The Washington Regional Office received a complete Stormwater Management Permit Application for
Currituck County Law Enforcement Center Kitchen Addition on April 26, 2006. Staff review of the
plans and specifications has determined that the project, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H.1000, We are forwarding Permit No. SW7020216-Mod dated
May 23, 2006, for the construction of the subject project.
This permit shall be effective from the date of issuance until May 23, 2016, and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and
Maintenance requirements in this permit. Failure to establish an adequate system for operation and
maintenance of the stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within 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
Garohna General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Uniess such demands are made this permit shall be final and binding,
if you havp any qup5tions, c,)r nppd additinnai in'fnrmatinn r;orlrQrnint this matiPr please cnntart Am
Franklin, or myself at [phone].
:'inr,Qrpiy,
A Hodg , Regional Supervisor
Surface Water Protection Section
Washington Regional Office
AHlaif
cc: David A Deel, PE, Quible & Associates
vr rituck County Building Inspections
ashington Regional Office
Central Files One
NorthCarohn,
.11 rrtrtrall1l
North Carolina Division of Water Quality Washington Regional Office Phone (252} 946-6481 FAX [phone] Customer Service
Internet: nmaterfiuslity.om 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748
An Equai Cpportunit Affirmative Action Employer— 50% Recycled110%Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7020216
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Currituck County
Currituck County Law Enforcement Center Kitchen Addition
Currituck County
FOR THE
construction, operation and maintenance of two infiltration basins in compliance with
the provisions of 15A NCAC 2H A 000 (hereafter referred to as the "stormwater rules')
and the approved stormwater management plans and specifications and other
supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until May 23, 2016, and shall be
subject to the following specified conditions and limitations:
1. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 109,379 square feet of
impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2of7

State Stormwater Management Systems
Permit No. SW7020216
6. The following design criteria have been provided in the infiltration basin and must
be maintained at design condition:
a.
Site Area, acres:
10.37
Basin 1
Basin 2
(existing)
b.
Drainage Area to Basins, acres:
2.70
2.63
C.
Total Impervious Surfaces, ft2:
74,741
34,638
d.
Design Storm, inches:
1.0
1.0
e.
Basins Depth, feet:
2.0
2.0
f.
Bottom Elevation, FMSL:
14.0
14.0
g.
Bottom Surface Area, ftz:
17,163
13,295
h.
Bypass Overflow Elevation, FMSL:
16.0
16.0
i.
Permitted Storage Volume, ft3:
17,873
21,016
j.
Type of Soil:
Conetoe
k.
Expected Infiltration Rate, in/hr.-
6
6
I.
Seasonal High Water Table, FMSL:
12
12
M.
Time to Draw Down, hours:
13.9
2.4
n.
Receiving Stream/River Basin:
North River
o.
Stream Index Number:
30-2
p. Classification of Water Body: "SC"
Ii. SCHEDULE OF COMPLIANCE
1. 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.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
Page 3of7

State Stormwater Management Systems
Permit No. SW7020216
4. Records of maintenance activities must be kept and made available upon.
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. 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, 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.
7. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
9. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time'frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes, have been made.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW7020216
III• GENERAL CONDITIONS
1. This permit is not transferable except after notice to and approval by the Director
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, 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. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
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) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective u tir=s
including those as may be required by this Division, such as the
additional or replacement stormwater management systems.
6. The Qermittee grants DENR Staff oermission to enter the orooertv dufina normAl
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
Clin^ n re�.v:rnt+k fr+r ..^. nr5rmi+ rv.nrJiFi�nkinn rr75:n.•+;�kinr. �rar,f r�inrr,;•:r.n.r r�r
.._:..:.............. ....�._. ..... ....:-J .'�'J Mom...... ..................
7 Unless specified elsewhere, permanent seeding requirements for the stormwater
in +hca h7nrFh f 'rrnlin� -r rr.r i �s- ^la �t
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s' Thra ran.-miito_o_ zin.-nil nntir?: th_a riioeicirwn rrf on%i n-mrnn nti rnarahir. rar m-nilirnn
Permit issued this thte 23rd day of Mlay, 2005.
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Aor Alan imeDirector
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r`—r.— F ,.r 7

State Stormwater Management Systems
Permit No. SW7020216
Currituck County Law Enforcement Center Kitchen Addition
Stormwater Permit No. SW7020216
Designer's Certification
I, . , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems
Permit No. SW7020216
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8_ All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Washington Regional Office
Currituck County Building Inspections
Page 7 of 7

W4p-, (,/
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Inter im Director
NORTH CAROLINA
Environmental Quality
November 22, 2019
County of Currituck
Attention: Mr. Ben Strikeleather, Manager
153 Courthouse Road, Suite 204.
Currituck, NC 27929
Subject: Stormwater Permit No. SW7020216 Renewal
Currituck County Law Enforcement Center
High Density Stormwater Project
Currituck County
Dear Mr. Strikeleather:
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7020216 for a stormwater treatment system consisting of two
infiltration basins serving the Currituck County Law Enforcement Center located on
Maple Road in Currituck County expires on May 23, 2020. This is a reminder that permit
renewal applications are due 180 days prior to expiration. We do not have a record of
receiving a renewal application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Also, it was noted in the file review that a designer's certification that the
project was constructed in accordance with the approved plans as required by the
permit has not been submitted for the second infiltration basin serving the kitchen
addition. Please include this with your application. Permit application forms for renewal
can be found on our website at:
https:1/deq.nc.gov/about/divisions/enei-eyvIniiieral-lafid-i-esources '(ener�d pineral-Ian -
rules Jstormwater-program/past-construction. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit. Failure to maintain a permit subjects the owner to assessment of civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. if you would like, I can email you a copy of the
application forms. You can request a copy by e-mailing me at rage r.thorpe[u),ncdenr,gov.
Sincerely,
Z�Cr
Rog7r K. Thorpe
Environmental Engineer
North Carolina Department of Environmental Quality I blvision of F.ne rgy, Mineral and Land Resources
Washington Regional Office. 1 943 Washington Square Mall I Washington, North Caroiina 27889
OnzcnrFinaii � 1
li.�urtn M F.Aru....W 1V.N41 10-Z, 252.946.6481

,Srt-) -� A-)n2Z /,, Ynod
FR I� OFFICE USE ONLY
Date Received
Fee Paid
r ni rb
State of North Carolina SW14GK 1193/ Q(a
IbepDWQVAartment of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns tyre project)'.
Countv of Currituck
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Dan Scanlon Currituck County Manager
3. Mailing Address for person listed in item 2 above:
City:_ Currituck State: NC Zip: 27929
Telephone Number: [phone]
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Currituck County Law Enfrorcement Center Kitchen Addition
5. Location of Project (street address):
Ad•acent to Currituck Count Air ort on SR 1246approx. 3840 feet North of intercestion of US 158 & SR 1246.
City: Maple County: Currituck
6. Directions to project (from nearest major intersection):
Located admacent to Currituck County Airport on SR 1246 approx. 3940 feet North of intercestion of US 158 & SR 1246,
7. Latitude: 76001'08" Longitude: 36°23'56" of project
8. Contact person who can answer Questions about the project:
Name: Derek A. Dail Telephone Number: _(252) 261-3300
IL PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal X Modification
Form SWU-101 Version 3.99 Page 1 of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit numberSW7020216 _ and its issue date (if known) Aril 19 2002
3. Specify the typebf project (check one):
Low Density X High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
�CAMA Major X Sedimentation/Erosion Control _404/401 Permit ,NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project,
Stormwater from proposed development will be collected and treated in a series of interconnected infiltration swales
that will ring the proposed developed area.
2. Stormwater runoff from this project drains to the Pa5guotank River basin.
3. Total Project Area: 10.37 acres 4. Project Built Upon Area: 24 - %
5. How many drainage areas does the project have? 1
6. Complete the following information for each drainage area, If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information :, '°
Drainage Acea 1
Drainage Area 2
Receiving Stream Name
North River
Receiving Stream Class
SC
Drainage Area
114,539 sf
Existing Impervious* Area
3,000 sf
Proposed Impervious*Area
34,638 sf
% Impervious* Area (total)
30%
'
Impervious* Surface Area . � :
Draina e Area 1
g
� 'Drainage Aroa 2
On -site Buildings
6,543 sf
On -site Asphalt
13,621 sf
On -site Concrete
2,173 sf
On -site Gravel
12,301 sf
Other on -site
Off -site
Total. 34,638 sf
Total:
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

1W
7. How was the off -site impervious area listed above derived? Auto -CAD Area Routine
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, autpareels 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.
L The following covenants are intended to ensure ongoing compliance with state storrnwater management permit number
as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
2. No more than square feet: of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or sirnilar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be tilled in, piped, or altered except as necessary to provide driveway crossings.
4. Built. -upon area in excess of the permitted amount requires a state storrnwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into tine permitted storm water control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of tare system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99
Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office,
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form -DAD
• One copy of the applicable Supplement Form(s) for each BMP C2A
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management DJ�
• Two copies of plans and specifications, including: 4 D
- Development/Project name
- Engineer and firm
Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): Ouible and Associates
Mailing Address: PO Drawer 870
City: Kitty Hawk State: NC Zip: 27949
Phone: [phone] Fax: [phone]
VIIL APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) l CA V1 tc�_
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 2H .1000.
Signature:
Date: 1- - Qtp
Form SWU-101 Version 3.99 Page 4 of 4

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQStormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : C yrrilvr_L L"w [r121CeM6P' ' Carley
Contact Person: Dav irk A, Da 1 . P. L . _ Phone Number: (7 62 ) 24 ! - 3
This worksheet applies to: Basin No. _ _ a5l in Drainage Area
(as idenlified on plans) (from Form SWU-101)
11. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Sol] Type b) PL
Infiltration Rate - 2 or cf/hr/sf (circle appropriate units)
SHWT Elevation fmSl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm I inch (1.5 inch event for SA waters, I inch event for others)
Design Volume /5._103 c.f.
Drawdown Time —0,66 days
Basin Dimensions
Basin Size w ft. X Uu N1 e; * ft. 17, 16 a sq. ft. (bottom dimensions)
Basin Volume Provided I Z A Z 3 c.f. irr��u10/1 S%a]O�
Basin Elevations
Bottom Elevation 14. 0 fmsl
Storage Elevation )3, _3 _ finsl
Top Elevation 16,0 - fmsl
Form SWU-103 Rev 399 Page 1 of 3

III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. if the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
DAD a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
AAn b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
D,q D d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
D8n e. System is not sited on or in fill material or DWQ approval has been obtained.
N IA r f. System is located in a recorded drainage casement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
�rirra�Pl�r ow�cj.air�tarnec� �yslP,r lvcacled opzi✓crlP�oia�°��
g. Drainage area for the device is less than 5 acres.
bA D h. Soils have a minimum hydraulic conductivity of0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
N /A n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters). v La4 of F1llei i � r.i Frc71l 1?cl br
o. Flow distribution mechanism within the basin is provided. 1.xC4°1s 510rale Frovrd'ed.
OAZ p. A benchmark is provided to determine the sediment accumulation in the pretreatment device.
GAD q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
DADr. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
DAD — s. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form S WU-103 Rev 3.99 Page 2 of 3

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
I . After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cov&, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored to the
original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed. Removed
sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will
adversely impact water quality (i.e. stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads , 1,. Q_ , feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. if the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 21-1 .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print Name and Title:
Address: �3C. u
Phone:
Signature:
Date: 3-zB
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
1, /Yl Ci r a S . 0-)r Lbe,4 , a Notary Public for the State of A/0 r *6 0 a.ro I rn n County of
d bra`, do hereby certify that_TQy�,�, I F. _ o,,j j 0,n -4— personally appeared before me this���
day of_,QrrA 0 ( and acknowledge the due execution of the forgoing infiltration basin maintenance requirements.
Witness my hand and Official seal, L&L
SEAL My commission xpilsrfu b t 6 /27 / a 9
Form SWU-103 Rev 3.99 Page 3 of 3

Permit No.
(to be provided br DIVQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM������
INFILTRATION BASIN SUPPLEMENT
JAN 2 0 2006
This form inay he photocopied for ase as an original DW Q- ARO
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : Currituck Law Enforcement Center Kitchen Addition
Contact Person: Derek A. Dail (Quible & Associates) Phone Number: [phone]
This worksheet applies to: Basin No. 1 in Drainage Area 1
(as identified ai plans) {from Forin SWU-101)
II. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
CnA
6-20 in/hr or cllhrlsf (circle appropriate units)
12 fmsl (Seasonal High Water Table elevation)
inch (1.5 inch event for SA waters, 1 inch event for others)
18,138 c.f.
0.1 clays
*Varies ft. x * Varies ft. 13,295 sq. ft. (bottom dimensions)
�21,016 c.f. * Basin is irregularly shaped
14
fmsl
15.3
fmsl
16
fmsl
Form SWU-lo3 Rev 3.99 Page I of 3

a
III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
NA D_ a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
7An b. System is located at least 100 feet from water supply wells.
1)Ac. Bottom of system is at least 2 feet above the seasonal high water table.
bA d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
DA _0 e. System is not sited on or in fill material or DWQ approval has been obtained.
se E rlo`rEs f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
)b D g. Drainage area for the device is less than 5 acres.
7 A b h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
A 7 j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
)-3 hD k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H: V).
0 A 1' 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
DAb m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
i)A b n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
o. Flow distribution mechanism within the basin is provided.
1) A 0 p. A benchmark is provided to determine the sediment accumulation in the pretreatment device.
SE E tJoTE5 q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
bA D r. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-143 Rev 3.99 Page 2 of 3

I
IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at. least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored to the
original design depth without aver -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed. Removed
sediment shall be disposed of in an appropriate mariner and shall not be handled in a matnner that will
adversely impact water quality (i.e. stockpiling near a stormwater treatment device or stream, etc,).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads I feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print Name and Title:_ Dan Scanlon, Currituck County Manager
Address: PO Box 38
Phone: 252-23 Date. v N
Signature:
Note: The legally responsible party should not be a homeowners association unless more than 50°Io of the lots hati-e been sold and a
resident of the subdivision has been named the president.
r a Notary Public for the State of (iaTo Lang_ , County of
1�1t mA a t% do hereby certify that �gn i c 1 F , �;d et n l o n . `TL personally appeared before me this 7
day of __emu , I oe 6 , and acknowledge the dire execution of the forgoing infiltration basin maintenance requirements.
Witness my hand anal seal,
NLAT 1
SEAT. My commission expiresQ7 0 9
Form SWU-103 Rev 3.99 Page 3 of 3

Currituck County Law Enforcement Center Kitchen Addition
Stormwater Management Permit Application
Infiltration Basin Supplement Notes:
Season High Watertable :
Season high watertable is determined to be 12 foot in elevation for the Infiltration Basin
Supplement. The soils report stated that the season high water table is 5 feet below the surface.
Majority of the site under the 17 Boot contour.
Required checklist items : Justification for not meeting requirements
Recorded drainage easement is not applicable because it is a privately owned system on a
privately owned site.
Stormwater design catches 5.0 inches of rainfall. This does not take into the account of
infiltration or storage volumes of pipes. This system should more than adequately treat
and store stormwater on -site.