SW7080720_CURRENT PERMIT_20090217

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. I SW 7o o7,W
DOC TYPE CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

LJ0.R0
AGO
AOt6MR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
February 17, 2009
Park Boat Company, Inc and
Harbourside Development Group, LLC
Attn: Mr. Terry D. Smithwick
980 US Hwy 17 South
Washington, NC 27889
Dear Mr. Smithwick:
P,•5 Per.�r,f J2sc.%rlfd
5:� (e-(ie.t
Subject: Permit No. SW7080720
Harbourside Marina Village
High Density Stormwater Project
Beaufort County
The Washington Regional Office received a Stormwater Management Permit Application
for the subject project on July 25, 2008. Revised plans and additional information were
received on December 2, 2008, and on February 13, 2009. 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. SW7080720 dated February 17, 2009, for the construction of the subject project.
This permit shall be effective from the date of issuance until February 17, 2019, 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 and in the
submitted application. 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 150E of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447.
Unless such demands are made this permit shall be final and binding.
North Carolina Division of Water Quality Internet. www.ncwaterqualitv.ore
943 Washington Square Mall Phone[phone]
Washington, NC 27889 FAX [phone]
An Equal OpportunitylAffinnahve Action Employer— 50% Recycled110% Post Consumer Paper
Nne
orthCarolina
Naturally

Page 2 of 9
Park Boat Company, Inc and
Harbourside Development Group, LLC
February 17, 2009
Page Two
If you have any questions, or need additional information concerning this matter, please
contact either Bill Moore, or me at [phone].
incer, ly,
A Hodg
Regional Supervisor
Surface Water Protection Section
cc: Quible & Associates
Beaufort County Planning/Building Inspections
.,,,Washington Regional Office
Central Files
Do V5 H+'g ye �/
m.'144. -Tha rtOti/t�-

Page 3 of 9
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
Park Boat Company, Inc and
Harbourside Development Group, LLC
Harbourside Marina Village
Beaufort County
FOR THE
construction, operation and maintenance of a wet detention basin, a bioretention
filter, a sand filter system, and a level spreader 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 February 17, 2019,
and shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of
stormwater described in the application and other supporting data.
2. This stormwater system has been approved for the management of
stormwater runoff as described in Section 1.6 on page 3 of this permit. The
stormwater controls have been designed to handle the runoff from 2.51
acres of impervious area.
3. 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 and permit.

Page 4 of 9
3
5.
a
The tract will be limited to the amount of built -upon area indicated on page
4 of this permit, and per approved plans.
The runoff from all built -upon area within the permitted drainage areas of
this project must be directed into the permitted stormwater control system.
The following design criteria have been provided in the wet detention
basins and must be maintained at design condition:
a. Project/Drainage Areas: 4.67 ac -Total Area
0.99 ac - DA 1
1.29 ac - DA 2
1.06ac-DA3
b. Total Impervious Surfaces: 0.54 ac - DA 1
1.20ac-DA2
0.77ac-DA3
C. Design Storm: 1.0 - inch
d. Basin Depths: 6.0 ft - wet pond
12-inches, bio-cell
e. Design Elevations: 2.0 ft - perm. pool wet pond
3.0 ft - perm. pool sand filter
4.5 ft - bottom elev. bio-cell
f. Surface Areas: 4565 sf - wet pond - DA 1
Required 560 sf - sand filter - DA 2
4661 sf - bio-cell - DA 3
g. Surface Areas: 4712 sf - wet pond - DA 1
Provided 560 sf - sand filter - DA 2
4661 sf - bio-cell - DA 3
h. Storage Volumes Required: 5748 cf - wet pond - DA 1
4167 cf - sand filter - DA 2
3110 cf - bio-cell - DA 3
i. Temporary Storage Volumes: 8713 cf - wet pond - DA 1
Provided 3125 cf - sand filter - DA 2
4101 cf - bio-cell - DA 3
j. Receiving Stream/River Basin: UT- Tar River
k. Classification of Water Body: C - NSW
NOTES: This is a redevelopment project that had no previous stormwater
BMPs. DA 1 is collected and treated in a wet detention pond system. DA 2 is
treated with infiltration swales and sand filters. DA 3 is treated in a bioretention
cell that overflows to the wet pond. Overflows from the (3) systems are routed to
a common level spreader structure that directs flow to an adjacent natural
wetland filter where additional treatment occurs prior to entering the adjacent
receiving waters.

Page 5 of 9
II. SCHEDULE OF COMPLIANCE
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.
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 Plans
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, filter media,
flow spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass 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.

Page 6 of 9
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. The Permittee shall maintain a copy of the approved plans and
specifications on file 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.
13. This permit shall be effective from the date of issuance until February 17,
2019. 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.
III. GENERAL CONDITIONS
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.

Page 7 of 9
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.
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. A copy of the approved
plans and specifications shall be maintained on file by the Permittee for
the life of the project.
9. The permittee shall notify the Division of any name, ownership or mailing
address changes within 30 days.
Permit issued this the 17th day of February, 2009.
NORTH C ROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�A'L- 1 ;for Coleen Ali4ns, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7080720

Page 8 of 9
Stormwater Permit No. SW7080720
Harbourside Marina Village - Washington, NC
Wet Pond System, Bioretention Filter, Sand Filter, Level Spreader
Beaufort County
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.
Note: The checklist on the following page must be included with this
Certification. Any changes or deviations from the approved plans and
specifications must be explained in detail, and may require a permit modification.
The certification forms should be submitted to the Division of Water Quality at the
appropriate Regional office.
SEAL
Signature
Registration Number
Date

Page 9 of 9
Complete this checklist for each system and include with
Certipication:
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 elevations are per the approved plan.
6. The bypass structure is located per the approved plans.
7. A 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. 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.

oiaie ur iNorm %_aronna
Department of Environment and Natural Resources DEC (' 2 A08
Division of Water Quality �p
STORMWATER MANAGEMENT PERMIT APPLICATION Iry
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Park Boat Company, Inc and Harbourside Development Group LLC
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Terry D. Smithwick and Rudy A Smithwick
3. Mailing Address for person listed in item 2 above:
Park Boat Company, Inc. Harbourside Development Group, LLC
Terry D. Smithwick Rudy A. Smithwick
980 US Hwy 17 South 8633 Vintage Club Drive
Washington, NC 27889 Wilmington, NC 28411
Phone:[phone] Phone:[phone]
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Harbourside Marina village
Harbourside Townhomes and Harbourside Marina)
5. Location of Project (street address):
980 US HWY 17 South
City: Washington County:Beaufort
6. Directions to project (from nearest major intersection):
Project is located on the west side of US 17 approximately 1,700 feet south of the ITS 17 Bridge over the Tar
7. Latitude:35.537675 Longitude:77.06652778 of project
8. Contact person who can answer questions about the project:
Name:David A. Deel, P.E. Telephone Number: (252 ) 261-3300
Email: dadeel®quible corn
II. PERMIT INFORMATION:
1. Specify whether project is (check one): ®New []Renewal ❑Modification
Form SWU-101 Version 8.07 Pale I 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 number and its issue date (if known)
3. Specify the type of project (check one):
❑Low Density ®High Density ®Redevelop []General Permit ElUniversal SNIP ROther
4. Additional Project Requirements (check applicable blanks):
NCAMA Major NSedimentation/Erosion Control ❑404/401 Permit DNPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater will be collected from the site via site grading, drop inlets and a storm sewers stem. Three
interconnected BMP's are provided (sand filter, wet basin and bioretention Excess flows bypass the systems
and are routed to a 30' vegetated filter.
2. Stormwater runoff from this project drains to the Pamlico River basin.
3. Total Site Area: 4.67 acres
4. Total Wetlands Area: 0.58 acres
5. 100' Wide Strip of Wetland Area: N/A acres (not applicable irno wetlands exist on site)
6. Total Project Area**:N/A acres 7. Project Built Upon Area:54 %
8. How many drainage areas does the project have?3
9. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
'777�.
Basin Information _
,z, ...... ,.
Drainage'Aiea`1`
'Drainage Area 2
Receiving Stream Name
-
Stream Class & Index No.
Drainage Area (sf)
-Sae, R4ro,4j
Existing Impervious* Area (sf)
Proposed Impervious*Area (so
% Impervious* Area (total)
Impervious,*- Surfzce Area' .-:'.'.
' Drafnage Aiea •1`
Drairage' lied 2
On -site Buildings (so
On -site Streets (sf)
On -site Parking (sf)
On -site Sidewalks (sf)
S ac .Ec Tu lz"
—
Other on -site (so
Off -site (sf)
Total (sf):
impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
**Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation.
Form SWU-101 Version 8.07 Page 2 of 4

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

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A
complete package includes all of the items listed below. The complete application package should be submitted
to the appropriate DWQ Office. (Appropriate office may be found by locating project on the interactive online map
at httj?://h2o.err.state.ric.us/su/msi mans htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
Copy of any applicable soil report
Three copies of plans and specifications (sealed, signed & dated), including:
- 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):Quible & Associates P.C.
Mailing Address:P.O. Drawer 870
City:Kitty Hawk State:NC Zip:27949
Phone: (252 ) 261-3300
Email:[e-mail]
VIII. APPLICANT'S CERTIFICATION
Fax: (252 ) 261-1260
I, (print or type name of person listed in General Informahon, item 2) Teml D. Smithwick and Rudy A Smithwick
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 recordded, and that the proposed project complies with the requirements of 15A NCAC
2H .1000. / A n e
Date: (' 12-d Doi
Form SWU-101 Version 8.07 Page 4 of

Basin Information
Draina e Area 1
Drainage Area 2
Draina e Area 3
Rec. Stream Name
Paradise Creek
Paradise Creek
Paradise Creek
Rec. Stream Class
C, Nutrient Sensitive
C, Nutrient Sensitive
C, Nutrient Sensitive
Drainage Area
43,088 sf (0.99 Ac)
56,031 sf (1.29 Ac)
46,223 sf (1.06 Ac)
Ex. Imperv. Area*
0 sf
0 sf
0 sf
Prop. Kuper. Area
23,442 sf (0.57 Ac)
52,312 sf (1.20 Ac)
33,662 sf (0.77 Ac)
% Imperv. Area
54.4%
93.3%
72.8%
Impervious Area
Drainage Area 1
Drainage Area 2
Draina e Area 3
On -Site Buildings
3,623 sf (0.08 Ac)
16,713 sf (0.38 Ac)
18,072 sf (0.41 Ac)
On Site Streets
N/A
N/A
N/A
On -Site Asphalt/Conc./Gravel
19,819 sf (0.45 Ac)
35,599 sf (0.82 Ac)
15,590 sf (0.36 Ac)
On -Site Turfstone
N/A
N/A
N/A
Other On -Site
N/A
N/A
N/A
Off -Site
N/A S36
N/A 1,7-0
N/A 773
Total: 23,442 sf (0.54 Ac)* *
Total: 52,312 sf (1.20 Ac)* *
Total: 33,662 sf (0.77 Ac)*
3, 34- tl�
2, S¢ -�
&C
* All Ex. Impervious Area to be removed. See Narrative for Existing Impervious Tabulation.
* * Total coverage noted on Sheet I of the plan set differs from the Impervious Coverage Tabulation above due to Sheet 1 coverage
including pervious decks and walkways.
Z, tl

Permit
(to be provided by DWO)
&TA
NCDENR
Project name
Contact person
Phone number
Date
Drainage area number
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
252-261-3300
ie Manna Vil
A. Deal, PE,
020E WA7Fq'q 9 W
r
o �
Il.,DESIGN INFORMATION
Site Characteristics
Drainage area 89,311 It,
Impervious area 58,274 tt3
impervious 65 24840165
Design rainfall depth 1.0 in
Storage Volume: Non -SR Waters
Minimum volume required
5,757
ff3
Volume provided
7,526
ff3
Storage Volume: SR Waters
1-yr, 24-hr runoff depth
in
Pre -development 1-yr, 24-hr runoff
n3
Post -development 1-yr, 24-hr runoff
ff3
Minimum volume required
ff3
Volume provided
tt3
Peak Flow Calculations
Is pre/post control of the 1-yr 24-hr peak flow required?
Y
(Y or N)
1-yr, 24-hr rainfall depth
1.3
in
Rational C, pre -development
0.7
(unitless)
Rational C, post -development
0.8
(unitless)
Rainfall intensity: 1-yr, 24-hr stone
01
infer
Pre -development 1-yr, 24-hr peak flow
0.4
ff3/sec
Post -development 1-yr, 24-hr peak flow
0.3
ft3/sec
Pre/Post 1-yr, 24-hr peak flow control
-0.2
ft'/sec
Basin Elevations
Basin bottom elevation
-2 00
d
Sediment cleanout elevation
-1.00
tt
Bottom of shelf elevation
1.50
It
Permanent pool elevation
2.00
it
Top of shelf elevation
2.50
It
Temporary pool elevation
3.50
ft
Volume and Surface Area Calculations
SAIDA ratio
0.04
(unitless)
Surface area at the bottom of shelf
2771.00
tt3
Volume at the bottom of shelf
4691.00
Its
Permanent pool, surface area required
3,494
It,
Permanent pool, surface area provided
4,019
ff3
Permanent pool volume
8,544
rya
Average depth for SAIDA tables
2,125901966
If
Surface area at the top of shelf
3,695
fts
Volume at the top of shelf
8,544
rya
JUL 2 5 2008
OK
Minimum of 3 ft required, Increase depth IAl �14 aieCl by c^vel:wz4
Fcna 4 lac{ ;).a;Sl}[ ); IX r[:�PvE(O�nm'•i.
Form SW401-Wet Detention Basm-Rev.3 Pans I. & 11 Design Summary, Page 1 of 2

Permit
be provided by DWO)
Forebay volume
2,409
ft'
_
Forebay % of permanent pool volume
28
%,
Must be approx 20%, t-peaAdinaBasiens
Temporary pool, surface area provided
5,784
ft'
�28%�
Drawdown Calculations
15 "PPrOr. zc%
Treatment volume drawdown time
2.33
days
OK
Treatment volume discharge rate
004
ft'/s
Pre -development 1-yr, 24-hr discharge
042
ft'/s
OK
Post -development 1-yr, 24-hr discharge
025
ft3/s
OK
Additional Information
Diameter of onfice
1.50
in
Design TSS removal
85
%
Basin side slopes
3
.1
OK
Vegetated shelf slope
to
1
OK
Vegetated shelf width
10
ft
OK
Length of flowpath to width ratio
Baffle Provided
a
OK
Length to width ratio
Baffle Provided
1
OK
Trash rack for overflow & onfice?
Y
(Y or N)
OK
Freeboard provided
1
ft
OK
Vegetated filter provided?
Y
(Y or N)
OK
Recorded drainage easement provided?
Y
(Y or N)
OK
Capures all runoff at ultimate build-out9
Y
(Y or N)
OK
Drain mechanism for maintenance or emergencies
Pump Required
Form SW 401-Wet Detention Basn-Rev 3 Parts I. 8 11 Design Summary, Page 2 of 2

Permit
(to be provided by DWq)
III: REQUIRED ITEMS CHECKLIST .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.
Pagel Plan
Initipis
Sheet No.
142 1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
2. Partial plan (1" = 30' or larger) and details for the wet detention basin shoving:
- 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.
flAr Cult
n % 3. Section view of the*detention basin (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
�P� 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.
DAD jairl, U 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
��n
cni1PG Plot., to verify volume provided
DAD{6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
n C n __ - 7 A construction sequence that shows how the wet detention basin will be protected from sediment until the
f� !� entire drainage area is stabilized.
1.[ b At afL pcP8. The supporting calculations.
FAD GYM . 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
I r7 10. A copy of the deed restriction.
Form SW401-Wet Detention Basin-Rev.1 Part III. Required Items Checklist, Page 1 of 1

Permit Number
(to be provided by DWQ)
020E W ik rf; G
A.
WCDENi h r
STORMWATER MANAGEMENT PERMIT APPLICATION FORM o Y
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section /I/) and the 1&M Agreement (Section IV)
e olect name
Contact name
Phone number
Date
Drainage area number
Harbourside Marina
David A Deel, P E
252.261-3300
2
12, 2008
II. DESIGN INFORMATION 1 -
Site Characteristics
Drainage area (AD)
Impervious area
Impervious (IA)
Design rainfall depth (Ro)
Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak flow?
1 -yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WOV)
Adjusted water quality volume (WQVAa1)
Volume contained in the sedimentation basin and on top of the sand filter
Maximum head on the sedimentation basin and sand filter (hmuF,hv)
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
If this is an open sand filter: The clearance between the bottom of the sand
filter and the SHWT (dsHn)
Closed/pre-cast sand filler?
It this is a closed sand filter: The clearance between the bottom of the sand
filter and the SHWT (ds,­,,,)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dspa..I
55,262 ftz OK
51,543 ftz
93.3%
1.0 in
Y YorN
1.25
in
0.13
in/hr
0.42
ft3/sec
0.25
ft3/sec
-02
ff3/sec
JUL 2 5 2008
4,097 ft3
3,073 ff3
Insufficient. The adjusted water quality volume can not
1,120
be contained. Increase area of filter and/or sed. Basin.
1,tt
Insufficient depth, 'ipeld,hc.41 510 ye (' pfovids�l
0.5If
OK vptilso.• aF Silie/, La'',,r lv:'%M+cle
0.89(unilless)
ila✓aq6 n MiligQIeu(by ike (oeIfG,f-
iie n tee?PVPfc�-f,C�f Slip
N YorN
N/A It
Y YorN
0.5 it - Wc4ler}fIkI,
enclosv,e wiYA dive eul%a
fo Vey. Lillrr.
N/A it
Form SW401-Sand Filter -Rev 2
Parts I and 11 Project Design Summary, Page 1 of 3

Permit Number.
(to be promded by DWO)
Sedimentation Basin
OK. Meets minimum, but may need to be increased to
Surface area of sedimentation basin (As)
560 fe contain the required volume if error under Storage
Volume section.
Sand Filter
OK. Meets minimum, but may need to be increased to
Surface area of sand filter (AF)
560 rye contain the required volume if error under Storage
Volume section.
Depth of the sand media filter bed (dF) 1.5 ft
Coefficient of permeability for the sand filter (k) 3.5 (ft/day)
Time to drain the sand filter (t) 40 hours OK. Submit drainage calculations.
Time to drain the sand filter (t) 1.67 days
Additional Information
Does volume in excess of the design volume bypass the sand filter? Y Y or N OK
Is an off-line flow -splitting device used? Y Y or N OK
Does volume in excess of the design volume flow evenly distributed through a y Y or N OK
vegetated filter?
What Is the length of the vegetated filter?
30 it
Does the design use a level spreader to evenly distribute flow?
Y Y or N
OK
Is the BMP located at least 3011 from surface waters (5011 if SA waters)v
Y Y or N
OK
Is the BMP located at least 100ft from water supply wells?
Y Y or N
OK
Are the vegetated side slopes equal to or less than 3:1
Y or N
Is the BMP located In a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
Y Y or N
OK
What is the width of the sedimentation chamber/forebay (WsJ?
8 If
OK
What is the depth of sand over the outlet pipe?
1 If
OK
Sedimentation
Clamber
lot Fotebay)
Flow
III -Sint
2* n
"`Sed
Figure 1: Open Sand Filter
Hiah Wale, Table
S:wd Fdtrt
iliarOber
A 1
Outlet Pipe
dF
'~ 11 dmwr
Form SW401-Sand Filter -Rev 2 Parts I and it Project Design Summary, Page 2 of 3

Permit No.
(to be provided by DWQ)
III: RCl.tU1RCU'I'1 CIVW hYItI;RLIJI .. ,�.:,_ >ae,'aria $,'j:'..' <_�-g.`.
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.
Initials Pagel Plan
Sheet No.
DAD ) t Z 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber
- Maintenance access,
- Flow splitting device,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
N) 7 2. Plan details (1" = 50' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber
- Maintenance access,
- Flow splitting device,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
LAD 7 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media
- Connection between the sedimentation chamber and the sand filter chamber,
- SHWT level(s)
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
A rn applicable)
DAD 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
V�arr�
ND .x • 5. Supporting calculations (including drainage calculations)
DAD. f kq, 6. Signed and notarized inspection and maintenance agreement
Form SW401-Sand Filter-Rev,1 Part III, Page 1 of 1

ATA
NCDENR
Permit Number
(to be provided by DWQ)
O�Of wAiEgQG
r
r
o
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
I7P,ROJECT INFORMATION
Project name
Harbourside Marina Village
Contact name
David A. Dee], P.E.
Phone number
252-261-3300
Dale
November 24, 2008
Drainage area number
DA 3
IKDESIGN,INFORMATIQN
Site Characteristics
Drainage area
46,223 ftz
Impervious area
33,662 ft2
Percent impervious
72.8%, %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
Y (Y or N)
1-yr, 24-hr runoff depth
1.25 in
1-yr, 24-hr intensity
0.13 in/hr
Pre -development 1-yr, 24-hr peak flow
0.420 ft3/sec
Post -development 1-yr, 24-hr peak flow
0 250 rya/sec
Pre/Post 1-yr, 24-hr peak control
-0.170 ft3/sec
Storage Volume: Non -SA Waters
Minimum volume required
3,110.0 rya
Volume provided
4,101.0 rya
OK
Storage Volume: SA Waters
1.5' runoff volume
rya
Pre -development 1-yr, 24-hr runoff
If
Post -development 1-yr, 24-hr runoff
rya
Minimum volume required
0If3
Volume provided
rya
Cell Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 It
Surface area of the top of the bioretention cell
4,661.0 ftz
OK
Length:
146 If
OK
Width:
32 It
OK
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
11.2hr
OK
Drawdown time, to 24 inches below surface
12.8 hr
OK
Drawdown time, total:
24 hr
In -situ soil:
Soil permeability
less than 0.5 in/hr
OK
Planting media soil.,
Soil permeability
1.00 in/hr
OK
Soil composition
• Sand (by weight)
85%
OK
• Fines (by weight)
10%
OK
Form SW401-Bioretention-Rev 6 Parts I and 11, Design Summary, Page 1 of 3

Permit
% Organic (by weight) 5% OK
(to be provided by OWQ)
Total: 100%
Phosphorus Index (P-Index) of media 10 (unitless) OK
Form SW401-Bioretention-Rev.6 Pans I and II. Design Summary, Page 2 of 3

Permit
(to be provided by DWO)
Basin Elevations
,Temporary pool elevation
Type of bioretentlon cell (answer "Y" to only one of the two following
questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting elevation (top of the mulch or grass sod layer)
Depth of mulch
Bottom of the planting media soil
Planting media depth
Depth of washed sand below planting media soil
Are underdrains being installed?
How many clean out pipes are being installed?
What factor of safety Is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
SHWT elevation
Distance from bottom to SHWT
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretentlon cell9
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
5.50 fmsl
Y (Y or N) OK
(Y or N)
4.5 fmsl
3 inches OK
2.5 first
2 ft
0 inches
Y (Y or N)
8 OK
2 OK
1 ft
1.5 fmsl f3eNow Skoroja Co 4.S'
2.8 fmsl 1
1, 7 ;04ft ias lfhaeM4d staiiee9d ShlW f.7'cfearan�e �rourGBc� 6eluC
boft6, Aceale a,,d SHIM-. I+ to o�licIf M Wow"
,crelyr, gebro (aid rooq`W) 1� ret,oveli fvow, 5A-udbr
SHwT w'tl
82 OK
Y (YorN) OK
N/A (Y or N)
N/A ft
Does the design use a level spreader to evenly distribute flow? T- NCR (Y or N)
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3 1?
Is the BMP located In a proposed drainage easement with access to
a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in the
future?
Are the slopes draining to the bioretentlon cell greater than 20%9
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X' In the shaded cell)
Gravel and grass
(B'Inches gravel followed by 3-5 ft of grass)
Grassed swale
Forebay
Other
tiTLGSs id6ji 13 YOulP4 to 40Wn5 oYL'c+n
Wei" Pond.
Ssbmitaaevelspreadersupplement. EXLG35 V01"'"G
4 Cu;nJ1/d0'e we t pe4-
Y (Y or N) OK
Y ;(YorN) OK
Y (Y or N) OK
,
N/A (YorN) kuuf(icient-ROW-loeabonr - Pr-IVAWY OwnEd oHc! Mal.101A
tydld,� totaled I„ ape„sp«�E
0.39ft/sec OK 3n Pro�pd�y j} 5Er'vt'S•
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
x
#VALUE!
Form SW401-Bioretention-Rev 6 Pads I and II. Design Summary, Page 3 of 3

Permit No
III -REQUIRED ITEM 4- G — a (to be assigned by DWO)
— — S�CHECKGST:a..ax'.z'z$'.�_.�?�,i; '�a. r i �'',`s;.:'.`
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.lnitial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
1. Plans (1' - 50' or larger) of the entire site showing
- Design at ultimate build -out,
- Off -site drainage (If applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Cell dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
DAD 7 2. Plan details (1' = 30' or larger) for the bioretenbon cell showing
- Cell dimensions
- Pretreatment system,
- High Flow bypass system,
SeP
- Maintenance access,
iiaT/a �IG�—� - Recorded drainage easement and public right of way (ROW),
APPPO1,X
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
3 Section view of the bioretenflon cell (1' = 20' or larger) showing:
- Side slopes, 3-1 or lower
- Underdrain system (if applicable), and
- Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
Narra]lvP
depth, washed sand, filter fabric (or choking stone If applicable), #57 stone, underdrains (if applicable),
SHWT level(s),
and overflow structure]
I /(•Ill
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests The
results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in
SFL°nfie[
situ soil must include:
Oh 5I Z 7 Soil permeability,
-Soil composition (%sand, %fines, %organic), and
��
DAD
�1 1
""
- P-index.
5. A detailed planting plan (1' = 20' or larger) prepared by a qualified individual showing:
- A variety of suitable species,
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
fit11r8 Plea
- Fertilizer and watering requirements to establish vegetation.
DAD
Dfi D
se+
6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized
DAD
DAD
A
T
7. A construction sequence that shows how the biorelention cell will be protected from sediment until the
entire drainage area is stabilized.
A D
at r'.
8. The supporting calculations (including underdrain calculations, if applicable).
f
DAD
a
9 A copy of the signed and notarized inspection and maintenance (I&M) agreement.
N / A 'Z 10. A copy of the deed restriction
Fonn SW401-Bioretention-Rev2
Pan III, Page 1 of 1

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Inspection and Maintenance Agreement
! I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important inspection and maintenance procedures
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the JUL 2 5 2008
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell. 1
— Special care will be taken to prevent sediment from entering the bioretention cell. J
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it 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 inspection and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
The perimeter of the
bioretention cell
Trash debris is resent.
Areas of bare soil and/or
erosive gullies have formed.
Remove the trash/debris.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer ap2lication,
The inlet device: pipe,
stone verge or Swale
The pipe is clogged (if
a licable).
Unclog the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
otherwise damaged (if
Replace the pipe.
applicable).
Erosion is occurring in the
swale (if applicable),
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged
stone and replace with clean stone.
a licable).
Form SW401-Bioretention 1&M-Rev.2 Page 1 of 4

BMP element:
Potential roblerns:
How I will remediate the roblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
Wes have formed
Restabilize the area after radin .
Sediment has accumulated to
Search for the source of the
a depth greater than three
inches.
sediment and remedy the problem if
possible. Remove the sediment and
restabilize the pretreatment area
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
reventfuture erosion roblems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
vegetation
Best professional practices
show that pruning is needed
Prune according to best professional
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.
Tree stakes/wires are present
six months after planting.
Remove tree stake/wires (which
can kill the tree if not removed).
The bioretention cell:
soils and mulch
Mulch is breaking down or
has floated away,
Spot mulch if there are only random
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
clogged with sediment.
Determine the extent of the clogging
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
ossible.
An annual soil test shows that
pH has dropped or heavy
Dolomitic lime shall be applied as
recommended per the soil test and
metals have accumulated in
toxic soils shall be removed,
the soil media.
disposed of properly and replaced
with new lantin media.
Form SW401-Bioretention I&M-Rev.2 Page 2 of 4

BMP element:
Potential roblems:
How I will remediate the roblem:
The underdrain system
(if applicable)
Clogging has occurred
Wash out the underdrain system.
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The dro inlet is dama ed
Re air or re lace the dro inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
outlet.
Quality 401 Oversight Unit at 919-
733-1786
Form SW401-Bioretention I&M-Rev.2 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Harbourside Marina Village
BMP drainage area number:
Print name: Rudv A. Smithwick
Title: Registered Agent, Harbourside Development Group LLC
Address: 8633 Vintage Club Drive, Wilmington NC 28411
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, -:R� CANC-a � " A , a Notary Public for the State of
Illee*h C.nen\; ew. , County of 32 46 rt do hereby certify that
Nk►+&` : A Cam+'• t K personally appeared before me this t `d
day of M4\\- ` , and acknowledge the due execution of the
forgoing
SEAL
requirements. Witness my hand and official seal,
tt.
IVQn fx.. `b. Col.w 9Ad•Ol
My commission expires Cnateh QU
Form SW401-Bioretention 1&M-Rev, 2 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Inspection 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.
T_ h' system (check one): JUL Z S ZOOS
does ❑ does not incorporate a vegetated filter at the outlet.
This system (check one): - f
❑ does Ndoes 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 inspection and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How 1 will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash debris.
The perimeter of the wet
detention basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Ion
Maintain vegetation at a height of
approximately six inches.
Form SW401-Wet Detention Basin I&M-Rev.2

Permit Number:
(to be provided by DIVQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate the roblem:
The inlet device: pipe or
swale
The pipe is clogged.
Unclog the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
swale
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accuulated to
m
Search for the source of the
a depth greater than the
original design depth for
sediment and remedy the problem if
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
revent future erosion Eroblems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than s ra in .
The vegetated shelf
Best professional practices
show that pruning is needed
Prune according to best professions]
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 nfants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
original design sediment
sediment and remedy the problem if
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
invasive plants cover 50% of
the basin surface.
Remove the plants by wiping them
with pesticide (do not spray).
Form SW401-Wet Detention Basin I&M-Rev.2

Permit Number:
(to be provided by DWQ)
Drainage Area Number
BMP element:
Potential roblem:
will remediate the roblem:
The embankment
Shrubs have started to grow
on the embankment.
shrubs immediately.
Evidence of muskrat or
!Rem!ove
ps to remove muskrats andbeaver
activity is present.
a professional to remove.
A tree has started to grow on
the embankment.
Consult a dam safety specialist to
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device
Clogging has occurred
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is dama ed
Re air or re lace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
outlet.
Water Quality Regional Office, or
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 3 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 3 feet in the forebay, the sediment shall
be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
6611 in the blanks)
p Permanent Pool Elevation 2.0
Pe manen Pool
--------------- -- Volume Sediment R�Bottom
vation -1.0 Volume
-2.0 -ft Min. --------------- ------------ ------
Sediment vation -2.0 I-ft n
Storage Sedimer
FOREBAY MAIN POND Storage
Form SW401-Wet Detention Basin I&M-Rev2

Permit
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Harbourside Marina Village
BMP drainage area number: DA 1 & DA 3
Print name: Terry D. Smithwick
Title: Registered Agent Park Boat Company Inc
Address: 980 US Hwy 17 South, Washington NC 27889
I, --2�_O NTI-0— Q. ii to r AS , a Notary Public for the State of
h,btVVN Q'Wo\'.nc , Countyof �b2 ou.�c't , do hereby certify that
-Q�• � �� C personally appeared before me this IDS
day of `S�\� QOOR , and acknowledge the due execution of the
forgoing biore t�ion maintenance requirements. Witness my hand and official seal,
ri
+ 4
�......• �j'••vi;i. kst
L fsaog4= kO tDnno. YJ. &LWOA OLO
SEAL
My commission expires Tc\ac Ch ALn t `yip 1-6
Form SW401-Wet Detention Basin I&M-Rev.2

Permit Number:
(to be provided by DWQ)
Print name: Rudy A. Smithwick
Title: Registered Agent, Harbourside Development Group, LLC
Address: 8633 Vintage Club Drive, Wilmington NC 28411
Phone: [phone]
Date:-711110iS
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, �2> • 5 , a Notary Public for the State of
County of beo„An c -' , do hereby certify that
� � Fi • cJn: �nw: C.K personally appeared before me this _1'
day of 77\k , aCOS , and acknowledge the due execution of the
forgoing bioereten�tion maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires_ e'�C Ch �b t c�01`J
Form SW401-Wet Detention Basin I&M-Rev.2

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Sand Filter Inspection and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity of
structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the
sand filter.
Once a year, sand media will be skimmed. JUL 2 5 2008
The sand filter media will be replaced whenever it fails to function properly after
vacuuming.
The sand filter will be inspected quarterly and within 24 hours after every storm event
greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of inspection and
maintenance will be kept in a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblem:
How I will remediate the roblem:
The entire BMP
Trash/debris is present.
Remove the trash debris.
The adjacent pavement
(if applicable)
Sediment is present on the
avement surface.
Sweep or vacuum the sediment as
soon as possible.
The perimeter of the
sand filter
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer ap2lication.
Vegetation is too short or too
Maintain vegetation at a height of
long.
aRE!roximately six inches.
The flow diversion
structure
The structure is clogged.
Unclog the conveyance and dispose
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
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 a pesticide is used, wipe it
on the plarrts rather than spraying.
Form SW401-Sand Filter I&M-Rev.2 Page 1 of 3

BMP element:
problem:
How I will remediate the roblem:
The filter bed and
underdrain collection
system
g on the
than 24
m.
=storm.water
Check to see if the collector system
is clogged and flush if necessary. If
water still ponds, remove the top
few inches of filter bedmedia and
replace. If water still ponds, then
consult an expert
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
revent future erosion problems.
The outflow pipe is damaged.
Repair or replace the i e.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
outlet.
Quality 401 Oversight Unit at 919-
733-1786.
Form SW401-Sand Filter I&M-Rev.2 Page 2 of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that 1 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: Harbourside Marina Village
BMP drainage area number: DA 2
Print name: Terry D. Smithwick
Title: Registered Agent, Park Boat Company Inc
Date: ( 1 I -& 1 U d
n.f (j.S a Notary Public for the State of
S��aR\•ota" County of ?)ktX.,3�-Oet do hereby certify that
personally appeared before me this,
day of tUVA QobB , and acknowledge the due execution of the
maintenance requirements. Witness my hand and official seal,
%kOTARx,
e � A.
Lcn cc, �'8' &4JOA d_c,
SEAL
My commission expires n1 c \-*\ c9b. aD1oJ
Form SW40I-Sand Filler 1&M-Rev.2 Page 3 of 3