SW8060808_CURRENT PERMIT_20060811

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
e�12�f
z
YYYYM M D D

A rE9Qt,
� Y
August 11, 2006
Mr. Bill Farris, Town Manager
Town of Leland
104 Town Hail Drive
Leland, NC 28451
Subject: Stormwater Permit No. SW8 060808
Westport Fire Station
High Density Project
Brunswick County
Dear Mr. Farris:
Michael F. Easlcy, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and,Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Westport Fire Station on August 11, 2006. Staff review of the plans and
specifications has determined that the PrV
ct, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC1000. We are forwarding Permit No. SW8 060808
dated August 11, 2006, for the construction of the subject project.
This permit shall be effective from the date of issuance until August 11, 2016, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request an adjudicatory hearing upon written request within sixty (60) 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, P.O. Drawer27447, Raleigh, NC 27611-7447. 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 Paul Bartlett, or me at [phone].
Sincer ly,
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/ptb: S:IWQSISTORMWATERIPERMIT1060808.aug06
cc: Shane Lippard, P.E., Right Angle Engineering, P.C.
Delaney Aycock, Brunswick County Building Inspections
Jeff Phillips, Brunswick County Engineering
Paul T. Bartlett, P.E.
Wilmington Regional Office
Central Files
One
NCarolina
NafurallY
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Internet: www.newaterquality.ora Fax [phone]'7-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW8 060808
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
Bill Farris and Town of Leland
Westport Fire Station
Brunswick 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 August 11, 2016, and shall
be subject to the following specified conditions and limitations:
I. 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 31,850 square feet of
impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans. There is no allotment for future built -upon
area at the site.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 060808
6. The following design criteria have been provided in the wet detention pond and
must be maintained at design conditions:
a.
Drainage Area, acres:
1.65
Onsite, ft :
71,874
Offsite, ft2:
None
b.
Total Impervious Surfaces, ft2:
31,850
OS Buildings, ft :
9,850
OS Streets, ft2.
8,000
OS Parking, ftl:
OS Sidewalks, ft2:
12,000
2,000
C.
Design Storm, inches:
1.0
d.
Pond Depth, feet:
5
e.
TSS removal efficiency:
90%
f.
Permanent Pool Elevation, FMSL:
15.0
g.
Permanent Pool Surface Area, ft2:
3,000
h.
Permitted Storage Volume, ft3:
3,078
i.
Temporary Storage Elevation, FMSL:
15.9
j.
Controlling Orifice:
0.75"0 pipe
k.
Permitted Forebay Volume, ft 3..
2,000
I.
Receiving Stream/River Basin:
UT Brunswick River 1 Cape Fear
M.
Stream Index Number:
18-77
n.
Classification of Water Body:
"SC"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. 'Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 O60808
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. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent
pool surface.
b. Separated units, where the nozzle, pump and intake are connected by
tubing, may be used only if they draw water from the surface in the
deepest part of the pond.
c. The falling water from the fountain must be centered in the pond, away
from the shoreline.
d. The maximum horsepower for a fountain in this pond is 118 horsepower.
S. 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.
7. 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.
8. 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.
9. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
10. 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.
11. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
12. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years -from the date of the completion of
construction.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 060808
13. 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.
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.
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.
Permit issued this the 11th day of August 2006.
NORTH AROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Alan W. Klimek, P,E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 050808
Westport Fire Station
Stormwater Permit No. SW8 060808 Page 1 of 2
Brunswick 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.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6of7

State Stormwater Management Systems
Permit No. SW8 050808
Page 2 of 2
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 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
Delaney Aycock, Brunswick County Building Inspections
Jeff Phillips, Brunswick County Engineering
Page 7 of 7

w
01, HCE USE ONLY
a WMINW,
Permit Number
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This fora+ may be photocopied far use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc, who owns the project):
Town of Leland
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Mr. Bill Farris. Town ManaLer
ki
Mailing address for person listed in item 2 above:
104 Town Hall Drive
City: Leland State: NC
Telephone Number: 910 - 371-0148
Zip: 28451
4, Project Name (subdivision, facility or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Westport Fire Station
5. Location of Project (street address):
Hwy 133 South of Westport Subdivision
City: Leland County: Brunswick W
6. Directions to project (from nearest major intersection):
South on Hwy 133 approximately 3 miles. Site is on right side of road.
7. Latitude: 34.1899
Longitude: 77.9881
8. Contact person who can answer questions about the project:
Name: Shane Lippard, Right Angle Eng. _ ___ _ Telephone Number
Ill. PERMIT INFORMATION
I. Specify whether project is (check one)
Form SWU-101
of project
251 - 8544
® New ❑ Renewal ❑ Modification
._
Page [ of 7.AUG L 2 2006

.<
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 ❑other
4. Additional Project Requirements (check applicable blanks):
❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Impervious areas will be collected by piping system to on site wet detention basin. Basin will treat to 90% TSS
before outlet to existing_ wetlands. On site BMP's will also be employed to further reduce downstream runoff
contamination as the Towns proactive approach to their Phase 11 NPDES requirements
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
3. Total Project Area: 1.65 acres 4. Project Built Upon Area: 41
5. How many drainage areas does the project have? 1
6. Complete the following information for each drainage area. If there are more than two drainage area in the
project, attach an additional sheet with the information for each are provided in the same format as below.
Basin Information
Drainage Area I
Drainage Area 2
Receiving Stream Name
UT to Brunswick River
Receiving Stream Class
SC
Drainage Area
1.65 AC
Existing Impervious * Area
0
Proposed Impervious * Area
0.73 AC
% Impervious * Area total
44
Impervious * Surface Area
Drainage Area I
Drainage Area 2
On -site Buildin as
9850 SF
On -site Streets
8000 SF
On -site Parking
12,000 SF
On -site Sidewalks
2000 SF
Other on -site
Off -site
Total: 31,850 SF
Total:
*Impervious area is defined as the buill upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel area, etc.
Form SWU-1(11 Version 3.99 Page 2 of

7. How was the off -site impervious area listed above derived? No off site into the project.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparceis 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.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality. These covenants may
not be changed or deleted without the consent of the State.
2, No more than 31,850 square feet of any lot shall be covered by structures or impervious materials.
impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface ofswiniming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossing.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or f tture development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be petformed in a manner that maintains the
integrity and petfortnance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and
persons claiming under them, that they will run with the land, that the required covenants cannot be changed or
deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the
status and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Low Density Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 version 3.99 Page 3 of 4

V1. - SUBMITTAL REQUIREMENTS
Only complete application packages will be acepted and reviewed by the Division of Water Quality (DWQ). A
complete package includes all of the items listed below. The complete application package should be submitted
to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space
Provided next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Forms(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, 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 elevation, 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)
VI1. AGENT AUTHORIZTION
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): Shane Lippard, PE - Right Angle Engineering
Maiiing Address: 212 Princess Street
City: Wilmington State: NC Zip: 28401
Phone: [phone] Fax: [phone]
Vill. APPLICANT'S CERTIFICATION
I, (print or type natne of person listed in General Inforination, item 2) Mr. Bill Farris
Certify that the information included on this permit application farm, is to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H.1000. �p
Signature: Date:
Form SWU-101 VCTSion 3.99 Page 4 of 4

Basin Information
Drainage Area 3
Drainage Area 4
Receiving Stream Name
Receiving Stream Class
Drainage Area
Existing Impervious * Area
Proposed Impervious * Area
% Impervious * Area total
Impervious * Surface Area
Drainage Area 3
Drainage Area 4
On -site Buildings
On -site Streets
On -site Parking
0
0
On -site Sidewalks
0
0
Other on -site
0
0
Off -site
Total:
Total:

Aug 11 06 11:01a Rae Pc
19102512208 P-2
/06 J cr`jPermit No O �
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natuiral Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WE"T DETENTION BASIN SUPPLEMENT
This form may he photocopied fur rise as an original
DWO StofWwater Management Plan Review:
A complete storrawater management plan snbmitW includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans: and specifications showing all basin and outlet
strvcrl�e deta�s. •
lt_ PROJECT INFORMATION
Project Na rue: oe -
Gontact Person_ S1 L < �4 Prone Nwmber to
For projects with multiple basins, specify which basin this wonksheet applies to_ 91` -L
elevations
Basin Bottom Elevation
Pennaneut Pool Elevation
Temporary Pool Elevation
areas
/o . a ft
_)S-o ft
1
Peananent Pool Surface Area 3boo sq. ft.
Drainage Area _ 1�6 5_ ac.
Impervious Area D. ZI ac.
vol uxnes
Permanent Pool Volume
-�c�pora�y-Pool Wt�in�e
Forebay Volume
Other parameters
SAIDA a
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
(door of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(waxer surface area at the orrfice elevation)
(on -site and off -site drainage to the basin)
(ors -sue and off -site drainage to the basin)
7So ctL ft_ (canrbined volume of main basin and forebay)
307 8- - uii.-ft- eni pool)
7-000 cu. ft. (approximately 20% of total volume)
a% (surface area to drainage area ratio from DWQ table)
in. (2 to S day temporary pool draw -down required)
1.O in.
_`LQ_ - % (minimum SS% required)
1:orur SWU-IO2 Rev 3.99 Page i of 4

Footnotes:
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. linear interpolation should be employed to determine the correct value for non-
standard table entries.
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BW manual provides design tables for both 85% TSS removal and 90% TSS removal.
U. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section_ 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a regwrernent has not been met, attach justification.
Applicants Initials
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)-
b. The forebay volume is approximately equal to 20% of the basin volume.
c- The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way _
1_ If the basin is used for sediment and erosion control during construction, clean out of the
-basin is specified -prior to use as a -wet detention basin.
rn. A mechanism is specified which will drain the basin for maintenance or are emergency.
7" �1) Y...
M. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
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) 0 does 0 does not incorporate a vegetated filter at the outlet_
This system (check one) 0 does 0 does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Aug 11 06 11:01a
Rae Pc
19102512206
P.3
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b_ Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to amain a maxinwro. height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc_) quarterly to
maintain proper functioning.
4- Remove accumulated sediment from the wet detentions basin system semi-annuafly or when depth is
reduced to 75% of the original design depth (see diagram below)_ Removed sediment shall be disposed
of in an appropriate manner and sbaU be bandied a Manner that will not adversely impact water quality
(i.e- stockpiling near a wet detention basin or stream, etc.).
The measuring device used to detemame the sediment elevadon shall be such that it will give an accurate
dep reading and not readily penetrate into accumulated sediments_
When the per naneni pool depth reads 3. 7 feet in the main pond, the sediment shall be removed_
Wben the perruanent pool depth reads 3 - 7 feet in the forebay, the sediment shall be removed -
Sedimmt ltAoval EL 11- 3 1 7
Bottom Ble lion /a• o
FORY-BAY
BASIN DIAGRAM
(Fdl in the blanks)
Permaoeet Pool Elevation /S•o
► Sediment Rewoval Elevation _LL.
.. - ------�3ottom•�levaiioQ la.a .
MAIN POND
75%
25So
5. Remove cdt#ailis and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin roust be drained for an emergency or to perform maintenance, the flusWng of Sediment
through the emefgrwy drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall he maintained in good working order.
1 acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: Mz . g i1\ �&-r t %J
Title:. OO"
Address: 1 oy _ -TO%04., _ QR ►Ir 4-
Phone :
Signature:
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, �ry �4►, n `�'1 ��O � , a Notary Public for the State of k):)All
County Of, Br—u O SLAJ (2 , do hereby certify that *B,) Fa = �
personally appeared before me this day of 770�, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
%0%111u1tuy11,
o ANN /Y
Q
No v
BM c PUBLIC c i
2
°�?Ck C0�N ��•�'�
111naltO
SEAL
My corn mission expires 1 g C9
/Oak r- L"Y
Form SWU-l02 Rev 3.99 Page 4 of 4

y
4
ti� . ��"+'�
�'
.x�
a-+
.`l .�
Nay
F�
.. Att
� `y^x
. � t, .
• .r�-

r
State Stormwater Management Systems
Permit No. SW8 060808
Westport Fire Station
Stormwater Permit No..SW8 060808
Brunswick County
Designer's Certification
Page 1 of 2
Ly as a duly registered ' v-
in the State of North Carolina, aving been authorized to observe enodica weekly/
full time) the construction of the project,
we—s�- o fl Te-
(Project)
for L.eA&-= (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
' Sr+
.'SE/k s,
Signature
Registration Number 23
'v
Date
Page 6 of 7

.ti;.
,
t .....,, r, .. � . ` !.{ .�
�nti�
Y�
.f
�-
� '
•� r.
Y r �.
C. _
� 1'
I�a�,Y
y'% ir}
t
..
1
`
• ' �
.'.
1
l
�� 1� ,.
ti
f

State Stormwater Management Systems
Permit No. SW8 60808
Page 2 of 2
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
V �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.
Z4. 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.
V 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.
✓ 1 Q. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
v 11. The permitted amounts of surface area and/or volume have been
provided.
✓ 12. Required drawdown devices are correctly sized per the approved plans.
3. All required design depths are provided.
✓ 14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
V 15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Delaney Aycock, Brunswick County Building Inspections
Jeff Phillips, Brunswick County Engineering
Page 7of7

RIGHT ANGLE
ENGINEERING, PC
212 Princess Street Wilmington, NC 28401 Tel. [phone] Fax [phone]
February 19, 2009
NCDENR-DWQ Regional Office
127 Cardinal Drive,
Wilmington, NC 28405
Subject: Town of Leland W-estport Fire Station
%W.8-060808
Enclosed is the Designer's Certification for the DWQ Storm Water permit for the above
referenced project.
If there are any questions please feel free to contact us.
Sinc rely
Shane Lippar H.E.
Right Angle Engineering, P.C.
Cc: Steven Spruill, Town of Leland Stormwater Manager