SW7021107_CURRENT PERMIT_20080520

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
HISTORICAL FILE
El COMPLIANCE EVALUATI ON INSPECTION
DOC DATE
YYYYMMDD

I
wa:Ro
A
Michael F. Easley, Governor
0
Williarn G. Ross Jr., Secretary
CO 7�
North Carolina Department of Environment and Natural Resources
Colleen H. Sullins, Director
Division of Water Quality
May 20, 2008
Currituck County
Attn: Eric Weatherly
P.O. BOX 38
Currituck, NC 27929
Subject: Stormwater Review SW70211107MOD.
Maple Industrial Complex
High Density Stormwater Permit
Currituck County
Dear Mr. Weatherly:
The Washington Regional Office received a complete Stormwater Management Permit Application for Maple
Industrial Complex on March 14, 2008. 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 21-1.1000. We are
forwarding Permit No. SW7021107 dated May 20, 2008 for the construction of the subject project.
This permit shall be effective from the date of issuance until June 28,2017 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 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 Ernest Odei-
Larbi, or me at [phone].
Sincerely,
Al Hodge
Regional Supervisor
Surface Water Protection Section
AH/eol: J:\WPDATA=QS\ State SW-EOL\Permits — Wet pond\2008
cc: John M. Massey, P. E, (4810 Shelley Dr., Wilmington, NC 28405)
C
,Vrrituck County Planning/inspection
,,^ashington Regional Office
Central File
North Carolina Division of Water Quality Internet: www.ncwatergualiry.org
943 Washington Square Mail Phone [phone]
Washington, NC 27889 Fax [phone]
One
No arolina
An Equal Opportunity/Affinative Action Employer - 50% Recycled/10% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7021107MOD.
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
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC
2H . 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until June 28, 2017 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
80.28 acres 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.
2

State Stormwater Management Systems
Permit No. SW7021107MOD.
6. The following design criteria have been provided in the wet detention pond and must be maintained at
design condition:
Total Impervious Surfaces: 80.28 ac
Design Storm, inches: 1
Receiving Stream: UT to North River
Classification of Water Body:
Total Site Area:
Wet Pond Depth:
Required Storage Volume:
Provided Storage Volume:
Required Surface Area:
Provided Surface Area:
Controlling Orifice:
C- Swp
167 ac
3.0 ft
331,607 cf
384,298 cf
392,169 sf
549,890 sf
1.5 ft weir @ elevation 8.6 ft
0

State Stormwater Management Systems
Permit No. SW7021107MOD.
11. 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 outlet structure, orifice device, flow spreader, catch basins and
piping.
9 Access to the outlet structure must be available at all times.
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.

State Stormwater Management Systems
Permit No. SW7021107MOD.
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 at all times.
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.
Ill. 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 action, including those as may be required by this Division,
such as the construction of additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during 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 filing of a request for a
permit modification, revocation and reissuance or termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference and are enforceable
parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days.

State Stormwater Management Systems
Permit No. SW7021107MOD.
10. This permit shall be effective from the date of issuance until, Application for permit renewal shall be
submitted 180 days prior to the expiration date of this permit and must be accompanied by the
processing fee.
Permit issued this the 20t I h day of May 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Coleen H. S411ins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7021107MOD.

State Stormwater Management Systems
Permit No. SW7021107MOD.
Maple Industrial Complex
Currituck County
Designer's Certification
1, . 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 cons truction 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:
SEAL
Signature
Registration Number
Date

State Storrnwater Management Systems
Permit No. SW7021107MOD.
Certification Requirements:
The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff drains to the
system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3: 1.
10. The inlets are located per the approved plans and do not cause short-circuiting of the system.
11. The permitted amounts,of surface area and/or volume have been provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Currituck County Building Inspections

W--LRD
A 77��
1W
bfichael F. Easley, Governor
0-)
William G. Ross Jr,, Secretary
North Carolina Departnumt of Environment and Natural Resources
-!�
Coleen H. Sullins, Director
Division of Water Quality
June 28, 2007
Mr. Daniel F. Scanlon, 11
Currituck County
P.O. Box 39
Curntuck, NC 27929
Subject: Permit No. SW7021107 Modification
Maple Industrial Complex
Airport Apron Expansion
High Density Stormwater Project
Currituck County
Dear Mr. Scanlon:
The Washington Regional Office received a completed Stormwater Application for modification to the subject
permit on May 4, 2007. 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.
SW7021107 dated June 28, 2007 to Currituck County for grassed swales and two wet detenton ponds to serve the
proposed Airport apron expansion as well as the Maple Industrial Complex in Currituck County.
This permit replaces permit SVV7021107 issued February 27, 2003 and shall be effective from the date of
issuance until June 28, 2017 and shall be subject to the conditions and limitations as specified therein. Please pay
special aftention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operafion and maintenance of the stormwater management system will result in future compliance
problems. The issuance of this permit does not resolve any previous violations of the stormwater rules for
construction without a permit.
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 questons, or need additional informabon concerning this matter, please contact Roger
Thorpe or me at [phone].
Aitn Ae
Tc 'Y�i —
Hodge, Qegc%I Supervl�sor
Surface Water Protection Section
Washington Regional Office
cc: T bert & Bright
a
.zhington Regional Office
Central Files
North Carolina Division of Water Quality Internet: �w.ncwaterqualiry.or One
943 Washington Square Mall Phone (252) 946-WI NofthCarolina
Washington, NC 27889 Fax [phone] Naturallff
An Equal Opportunity/Affirmative Action Employer- 50% Recyded/10% Post Consumer Paper

State Stormwater Management Systems Permit No. SW7021107
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGENENT PERNUT
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
Maple Industrial Complex
FORTHE
construction, operation and maintenance of stormwater management systems in compliance with the provisions of
15A NCAC 2H.1000 (hereafter referred to as the "stormwater rulesl 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 for grassed swales and two wet detention ponds to serve the Maple
Industrial Complex located at the Maple Airport in Currituck County.
This permit replaces permit SW7021107 issued February 27, 2003 and shall be effective from the date of issuance
until June 28, 2017 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 on page
2 of this permit, the Project Data Sheet.
3. A maximum.of 80.28 acres of built upon area is allowed. All stormwater from impervious areas shall be
routed to the wet detention ponds.
4. AJI 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 approved plans.
5. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of
the permit.

DIVISION OF WATER QUALITY
PROJECT DATA
Project Name:
..Maple Industrial Cornplex
Permit Number.
SW7021107
Location:
Currftuc.k County
Applicant:
Currituck bounty
Mailing Address:
P.O. Box 39
Currituck, NC 27929
Application Date:
5/4/2007
Receiving Stream:
UT to North River
Classification of Water Body:
C - Swp
Total Project Area:
167.0 ac
Total Impervious allowed:
80.28 ac
Wet Pond Depth:
3.0 ft
Required Storage Volume:
331,607 cf
Provided Storage Volume:
384,298 cf
Required Surface Area:
392,169 sf
Provided Surface Area:
549,890 sf
Controlling Orifice:
1.5 ft weir @ elevation 8.6 ft

6. .. No homeownerAot owner/developer shall be allowed to. fill in, alter, or pipe any vegetative, practices (such as
sw ales) shown on the approved plans as part of the stormwater management system without submitting a
revision to the permit and receiving approval from the Division.
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..
B. 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 perniittee 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.
11. SCHEDULE OF COMPLIANCE
1 The permittee . wil I I comply with the following. I schedule'for . construction and mai ntenance of the stormw'ater
management system. I -� 1. . .. I . I : .
a. The stormwater management system shall be constructed in its entirety, vegetated and operational
for its intended use priorto the.construction of any built -upon surfaces,except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be
repaired immediately.
2. 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.
3. 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
a. 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
DWO. The records will indicate the date, activity, name of person performing.the work and what actions were
taken.
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 Mail,
Washington, North Carolina, 27889, attention Division of Water Quality.

7. copy of the approved plans and spedfications shall be maintained on file. by the Permiffee for the life of the
project.
111. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a desire for the facilities to c hange�ownershlp, or there is
a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality
accompanied by an applicatio I n 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 t o
enforcement action by the Divisionof Water Quality, in accordance with North Carolina General Statute 143-
215.6(b) to 143-21.5.6(c)..
1 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 tak6 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 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.
6. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for
an extension along with appropriate application fee.
Permit issued this the 28 th day of June, 2007.
CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
' oleenll-l. Sullins, P.E. Director
ision of Water Quality
Authority of the Environmental Management Commission
Peffnft Number SW7021107

Currituck County — Maple Industrial Complex
Stormwater Permit No. SW'7021107
Designees Certification
1, as a duly
registered Professional Engineer in the State of North Carolina, having been authorized to observe
(Wodically/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.
Signature
Registration Number
Date
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 outlet1bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation and are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of the system.
10. The permitted amounts of surface area and/or volume have been provided.
it. All required design depths are provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required parts of the system are provided, such as a vegetated shelf, forebay and vegetated
filter if required.
14. The required system dimensions are provided per the approved plans.

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
6Wr1JA1J&1P_ A46cl
Applicable Rules: 0 Coastal SW - 1995 0 Coastal SW - 2008 0 Ph II - Post Construction
(select all that apply) El Non -Coastal SW- HQW/ORW Waters 0 Universal Stormwater Management Plan
0 Other WQ Mgmt Plan: !::; WkCK 1116 A _a__
State of North Carolina
I � " L­�- �� V L'� LJ,
Department of Environment and Natural Resources� " I � �1 -,,
Division of Water Quality NOV 5 2013
STORMWATER MANAGEMENT PERMIT APPLICATION FO
, Am
Thisform may be photocopiedfor use as an original A--W
1. GENERAL INFORMATION IV, N
1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Currituck County Bus Garage (at Maple Commerce Park)
2. Location of Project (street address):
City: Mal2le County: Currituck — Zip: 26956
3. Directions to project (from nearest major intersection):
From the intersection of US Hwy 158 and US Hwy 168 in Barco, NC, head east on US Hwy 158 al2proximatdy
2 miles to Aviation Parkway. Turn right (north) and go 0.45 miles to Barco Way. Turn right onto Barco Wa-y.
Proiect is on the right approximately 500' from the intersection at Aviation Parkway.
4. Latitucle:36' 23'29" N Longitude:-76' 0'30" W — of the main entrance to the project.
it. PERMIT INFORMATION:
1. a. Specify whether project is (check one): E]New ZModification E] Renewal w/ Modificationt
tRenm,als with modifications also requires SMI-102 - Reneu,al Application Form
b. If this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW7100602 , its issue date (if known) August 5, 2010 and the status of
construction: ONot Started E]Partially Completed* Z Completed* *provide a designer's certification
2. Specify the type of project (check one):
FLow Density ZHigh Density FDrains to an Of fsite Stormwater System E]Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, and the previous name of the project, if different than currently
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
MCAMA Major nSed imen tation /Erosion Control: V-9 ac of Disturbed Area
FINPDES Industrial Stormwater E]404/401 Permit: Proposed Impacts
b. If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
5. Is the project located within 5 miles of a public airport? E]No ZYes
If yes, see S.L. 2012-200, Part VI: httl2://12ortal.ncdenr.org/web/wq/ws/su/statesw/rules law
FormSWU-101 Version 06Aug2012 Page I of 6

III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the 12rojec
Applicant/Organization:,County of Currituck
Signing Official & Title: Eric T. Weatherly, PE, County Engineer
b.Contact information for person listed in item la above:
StreetAddress: 153 Courthouse Road, Suite 302
City: Currituck State: NC Zip:27929
Mailing Address (if applicable): 153 Courthouse Road, Suite 302
City: Currituck State: NC Zip:27929
Phone: [phone] Fax: [phone]
Email: [e-mail]
c. Please check the appropriate box. The applicant listed above is:
Z The property owner (Skip to Contact Information, item 3a)
Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
F-1 Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official & Title:
b.Contact information for person listed in item 2a above:
Street Address:
City: State
Mailing Address (if applicable):
City: State
Phone: Fax:
Email:
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/ Organization: Hyman & Robey. PC
Signing Official & Title: Sean C. Robey, PE
b.Contact information for person listed in item 3a above:
Mailing Address: P. 0. Box 339
City: Camden State: NC Zip: 27921
Phone: ( 252 335-1888 Fax: ( 252 338-5552
Email: [e-mail]
4. Local jurisdiction for building permits: Currituck
Point of Contact: Donna Voliva Phone#: ( 252 232-2055
Form SWU-101 Version 06Aug2012 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater will sheet flow across the site and be collected in grass lined swales. The swales will route the —
runoff to triple culverts under Barco Way which drain through additional ditches before discharging into a
large wet detention basin designed for 90% TSS removal that was construcated with Maple Commerce Park.
2.a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
r_1 Approval of a Site Specific Development Plan or PUD Approval Date:
E] Valid Building Permit Issued Date:
F] Other: Date:
b. If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
F-1 Coastal SW - 1995 M Ph 11 - Post Construction
3. Stormwater runoff from this project drains to the Pasquotank River basin.
4. Total Property Area: 116.48 acres 5. Total Coastal Wetlands Area: 0 acres
6, Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area': 116.48 acres
Total project area shall be calculated to exclude thefOI107Ving: the normal ool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High Oer (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landwardfrom the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area. 11�
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 49.5 %
9. How many drainage areas does the project have?l (For high density, count I for each proposed engineered
stormwater BMP. For low density and other projects, use I for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
Basin Information.
Draina ' ge Area 1
Drainage Area 2
Drainage Area
Drainage Area
Receiving Stream Name
Coinjock Bay
Stream Class *
SC
5-
Stream Index Number
30-1-6
Total Drainage Area (sf)
5,073,697
WC. —5- kc
On -site Drainage Area (sf)
5,073,697
Off -site Drainage Area (sO
1 0
Proposed Impervious Area** (sf)
2,511,243
S7, -7
% Impervious Area** (total)
49.5
Impervious'* Surface Area
Drainage Area I
Drainage Area
Drainage Area
Drainage Area
On -site Buildings/Lots (sf)
On -site Streets (so
On -site Parking (sf)
64,825
On -site Sidewalks (sf)
Other on -site (sf)
2,261,520
Future (sf)
92,000
Off -site (sf)
1 Existing BUA*** (s
92,898
I Total (so:
2,511,243
Stream Class and Index Number can be determined at: htt�3:14)ortal,ncdenr.orql7i)eblzi�q4�slcstilclassi[ications
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
1�
Form SWU- 10 1 Version 06Aug2012 Page 3 of 6

11. How was the off -site impervious area listed above determined? Provide documentation. N/A
Proaects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that maybe subject to more stringentstarmwater requirements as per 15A NCAC 028.0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
fromhtti2://portaI.ncdelir.org/web/wq/ws/su/bnil2-maiival.
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. A detailed application instruction sheet and BMP
checklists are available from hU:/Zportal.ncdenr.org/web/­wq/­ws/su/statesw/`­forms docs. The complete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online map at httl2:/ / porta I.ncdenr.org /web /wq /ws /su / mal2s.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http: portal.ncdenr.org/web / wq /ws / su /sta tesw /forms docs.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form. kcilb
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants lyla
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
http://www.envhe]12.org/12ages/onestol2express.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1h mile of the site boundary, include the 1h
mile radius on the map.
7. Sealed, signed and dated calculations (one copy).
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
Form SWU- 10 1 Version 06Aug2012 Page 4 of 6

9. Copy of any applicable soils report with the associated SHWT elevations (Please identify ofa-
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visitfor DWQ to verifij the SHVvrTprior
to submittal, [phone].)
10. A copy of the most current property deed. Deed book: 12,3& PageNo: 613 kA
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC AJJA
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 21-1.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
ht!2://www.secreta!y.state.nc.us/Corl2orations/CSearch.asvx
VIL DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http: / /12ortal.ncdenr.org /web/ wq / ws /su /statesw /forms d9cs. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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 NC DWQ, and that they will be recorded prior to the sale of any lot.
VIII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer: Sean C. Robey, PE
Consulting
MailingAddress: P.Q.Box339
City: Camden State: NC Zip: 27921
Phone: ( 252 335-1888 Fax: ( 252 338-5552
Email:
IX PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or type name of person listed in Contact Information, item 2a) I certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item 1a) with (print or type name of organization listed in
Contact Information, item 1a) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SVrU- 10 1 Version 06Aug2012 Page 5 of 6

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Date:
a Notary Public for the State of , County of
do hereby certify that personally appeared
before me this — day of — and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission
X. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in Contact Information, item 1a) Eric T. Weatherly, P -Currituck County Engineer
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 the
applicable stormwater rules under 15A NCAC 2H.1000 and any other applicable state stormwater requirements.
eo - lo -13
1, Ag-r-6, .5. -, a Notary Public for the State of nx.'-'Anlcounty of
do hereby certify that Ert c--7— &Z, A-Ah�-,4, personally appeared
before me this Z�*ay of DCA�e, e�1619 and acknowledge the due execution 9f the application for
a stormwater permit. Witness my hand and official seal, O'�(
MARY S. GILBERT
NOTARY PUBLIC
CAMDEN COUNTY
NORTH CAROLINA
My Commission SxplreS 6/27/2014
SEAL
My commission expires 6 7 'le, 14=
Form SWU- 10 1 Version 06Aug2012 Page 6 of 6

Permit NoSw 7/z)o4c) -)—
to be provided by DWQ)
ARA
NCDENR
O� W A rf;9
40A �6�c:
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required inforriation.
11. PROJECT INFORMATION
Project name
Contact person
Phone number
Date
Drainage area number
Eric T.
111. DESIGN INFORMATION
Site Characteristics
Drainage area
5?0731697 ft2
Impervious area, post -development
21511,243 ft2
% impervious
4950 %
Design rainfall depth
1.5 in
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 prelpost 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 pen. pool elevation)
Top of 10ft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is them additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
369,639 ft'
392,335 ft' OK, volume provided is equal to or in excess of volume required.
il
ft3
IN (Y or N)
3.1 in
0.20 limitless)
0.55 limitless)
0.75 irVhr OK
ft'/sec
000 ftIsec
0.00 Pifer:
6.00 fmsl
500 fmsl
5.00 fmsl
5.50 fmsl
4.50 fmsl
1.00 fmsl
0.00 fmsl
1.00 fit
Y (Y or N)
6.0 fmsl OK
Fomn SW4Dl.Wet Detention Basin-Rev.9-4118/12 Parts 1. & 11. Design Summary, Page 1 of 2

Permit
(Noep,ovidedbyDINO)
Ill. DESIGN INFORMATION
Surface Areas
Area, temporary pool 409,940 ft?
Area REQUIRED, permanent pool 253,685 ft2
SAIDA ratio
5.00 (unitless)
Area PROVIDED, permanent pool, A..-PoN
361790 ft' V'
OK
Area, bottom of 1 Oft vegetated shelf, Aw_�,,
237958 ft'
Area, sediment cleanout, top elevation (bottom of pond), Awm,,
180664 it'
Volumes
Volume, temporary pool
392,335 ft'
OK
Volume, permanent pool, V.-P.
1,096,184 ft'
Volume, forebay (sum of forebays if more than one forebay)
238,555 it'
Forebay % of permanent pool volume
21.8% %
OK
SAIDA Table Data
Design TSS removal
90 %
Coasta� SAIDA Table Used?
Y (Y or N)
Mountain/Piedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
5.00 (unilless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, V.,_,o,
1096 184 fit
Area provided, permanent pool, A..
361,790 ft2
Average depth calculated
3.49 it
OK
Average depth used in SAIDA, d., (Round to nearest 0.5ft)
3.5 fit
OK
Calculation option 2 used? (See Figure 10-2b)
y (Y or N)
Area provided, permanent pool, A��
361,790 ft2
Area, bottom of 1 Oft vegetated shelf,
237958 it'
Area, sediment cleanout, top elevation (bottom of pond), A...
180,664 ft2
'Depth' (distance btw bottom of 10ft shelf and top of sediment)
150 ft
Average depth calculated r 1
349 It
OK
Average depth used in SAJDA, d., (Round to down to nearest 0 5ft)
3.5 It
OK
Drawdown Calculations
Drawdown through onfice?
Diameter of onfice (if circular)
Area of orifice (if -non -circular)
Coefficient of discharge (Co)
Driving head (Hj
Drawdown through weir9
Weir type
Coefficient of discharge (Q
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 Rowpath to width ratio
Length to width ratio
Trash rack for overflow & orffice?
Freetboard provided
Vegetated fifter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
Y (Y or N)
6.00 in
in 2
0.30 (unitless)
0.34 ft
N (Y or N)
(uniVess)
ft
It
31.70 ftIsec;
4769 ft'Isec
1.34 ft'Isec
3.40 days V' OK, draws down in 2-5 days.
3 :1 OK
10 .1 OK
10.0 ft 11
OK
3 :1
OK
26.9 :1
OK
Y
(Y or N)
OK
1.0 It
OK
N
(Y or N)
OK
Y
(Y or N)
OK
Y
(Y or N)
OK
PUMP
Form SW401 -Wet Detention Basin-Rev.9-4/18/12 Pans 1. & 11. Design Summary, Page 2 of 2

Permit
fto be provided by DWQ)
1111. REQUIRED ITEMS CHECKLIST, I - ,, i , : 1 1 1
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.
C300-C303 1 , Plans It" - 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.
NIA -existing 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
Maintenance access,
Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
N/A -existing
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.
N/A
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
Narrative
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided,
C901
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
Narrative
7. The supporting calculations.
Attached
8. A copy of the signed and notarized operation and maintenance (O&M) agreement.
N/A
9. A copy of the deed restrictions (if required),
N/A
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.9-4118/12 Part 111. Required Items Checklist, Page 1 of I

Attachment to Form SW401-Wet Detention Basin
Part 111. Required Item Checklist
1-4. No details regarding the detention pond are provided with this application as the pond was
previously constructed and certified.
9. Deed restrictions were required for the individual lots in Maple Commerce Park. They are in the
process of being finalized and will be recorded soon along with the final plat. No covenants are
be constructed on county owned land that is not included in the subdivision and will not be for
sale.
10. No soils report was prepared for this project as the detention pond is existing.

Permit Number:
(to be provided by D WQ)
Draina.e 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 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):
D does Z does not incorporate a vegetated filter at the outlet.
This system (check one):
D does Z 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:
Potential problem:
How I will remediate the problem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed,
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six:
Form SW401-Wet Detention Basin O&M-Rev.4 Page I of 4

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

Permit Number:
(to be provided by D WQ)
Drainage Area Number:
BMP element:
Potential problem:
How I will remediate the problem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs 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 4.00 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 3.00 feet in the forebay, the sediment
shall be removed.
Sediment Removal
2.00 1
-----------------
FOREBAY
BASIN DIAGRAM
(fill in the blanks)
�ft Min.
Sediment
Storage
Permanent Pool Elevation 5.00
Pool
Sediment Removal Elevation 1 .00 Volumt
------- ------ ------- __ ------
Bottom Elevation
MAIN POND
1-ft
Storage
Form SW401 -Wet Detention Basin O&M-Rev.4 Page 3 of 4

Permit Number: Yal71z:) n e c) �2__
(Io be provided by D WQ)
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:Maple Commerce Park
BMP drainage area number:
Print name:Eric T. Weatherly, P.E.
Title:County Engineer - Currituck County
Address: 153 Courthouse Road Suite 302
Date: to-30-I
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president,
1, A'.O_r� '9 0_�, 113�rrf- I a Notary Public for the State of
No r-1-h ()a r ^ I I P\ a , County of _(2 cAm,4 4p y­, —, do hereby certify that
E,-ye, -77 personally appeared before me this 5a
day of Da.±, b,,, 0:?�o 13 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal, 7)� a'te'y 'J. oe_e�
MARY S. GILBERT
NOTARY PUBLIC
CAMDEN COUNTY
NORTH CAROLINA
My Commission Expires 6/27/2014
SEAL
My commission expires 61 49 -7 Zc,7, 0 ZA
Form SW40 I -Wet Detention Basin O&M-Rev.4 Page 4 of 4