SW8960315_CURRENT PERMIT_20040528

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE � CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

�oF w A rF9Q Michael F. Easley, Governor
William G. Ross Jr., Secretary
�O G North Carolina Department of Environment and Natural Resources
] Alan W. Kfimek, P.E.,Director
-� Division of Water Quality
Ccleen H. Sullins, Deputy Director
Division of Water Quality
May 287 2004
Mr. Blaine East
Pointe @ North Market, LLC
206 Sherwood Forest Place
Cary, NC 27519
Subject: Permit No. SW8 960315 Modification
North Market Promenade
High Density Stormwater Project
New Hanover County
Dear Mr. East:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for North Market Promenade on May 28, 2004. Staff review of the plans and
specifications has determined that the project, as proposed, will comply with the Stormwater
RequIations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 960315
Modification dated May 28, 2004, for the construction of North Market Promenade.
This permit shall be effective from the date of issuance until May 28, 2014, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to the
Operation and Maintenance requirements in this permit. Failure to establish an adequate system
for operation and maintenance of the stormwater management system will result in future
compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you
have the right to request an adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, 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 Laurie Munn, or me at [phone].
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/:Ism S:IWQSISTORMWATIPERMIT19603151,i0D.may04
cc: John A. Kuske, III, P.E.
New Hanover County Building Inspections
Beth E. Wetherill, New Hanover County Engineering
Laurie Munn
Wilmington Regional Uffice
Central Files
f.. R
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone]
N CDEh�'R �

State Stormwater Management Systems
Permit No. SW8 960315 Modification
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERINUT
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
Pointe @ North Market, LLC
North Market Promenade
New Hanover Countv
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 May 28, 2014, 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.
This stormwater system has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The stormwater control has
been designed to handle the runoff from 63,400 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project %vill 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. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from
outside of the approved drainage area.

State Stormwater Management Systems 1
'
Permit No. SW8 960315 Modification 1
DIVISION
OF WATER QUALITY
PROJECT
DESIGN DATA SHEET
Project Name:
North Market Promenade
Permit Number:
SW8 960315 Modification
Location:
New Hanover County
Applicant'.
Mr. Blaine East
Mailing Address:
Pointe @ North Market, LLC
206 Sherwood Forest Place
Cary, NC 27519
Application Date:
May 28, 2004
Receiving Stream/River Basin:
Spring Branch / Cape Fear
Stream Index Number:
18-74-63-1
Classification of Water Body:
T Sw"
Drainage Area, acres:
1.92
Onsite, sq. ft.:
83,636
Mite, sq_ ft.:
none
Total Impervious Surfaces, sq. ft.:
63,400
Pond Depth, feet:
7.5
TSS removal efficiency:
90% (no filter is required)
Permanent Pool Elevation, FMSL:
34.50
Permitted Surface Area, sq. ft,:
2,193@Permanent Pool
Permitted Storage Volume, cubic ft.:
5,718
Temporary Storage Elevation, FMSL:
36.60
Controlling Orifice:
1" � (drawdown in 2-5 days)
Permitted Forebay Volume, cubic ft.:
n/a (not required at time of issuance of
original permit)

State Stormwater Management Systems
Permit No. SW8 960315 Modification
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 tunes 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.
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 draws 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 the fountain's pump is based on the permanent
pool volume. The maximum pump power for a fountain in this pond is 1/8.
6. 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.
S. 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. 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: r
4

State Stormwater Management Systems
Permit No. SWS 960315 Modification
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, 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
zJ
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. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
12. At Ieast 30 days prior to the sale or lease of any portion of the property, the permittee
shall notify DWQ and provide the name, mailing address and phone number of the
purchaser or leasee. An access/maintenance easement to the stormwater facilities shall be
granted in favor of the permittee if access to the stormwater facilities will be restricted by
the sale or lease of any portion of the property.
13. The permittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the built -upon is directed into the permitted system.
14. 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.
15. The permittee must maintain the current permitted drainage area. No additional runoff
from outside of the permitted drainage area boundary may enter the permitted stormwater
facilities without first applying for and receiving a permit modification.
111. 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.
The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which maybe imposed by other government
agencies (local, state, and federal) which have jurisdiction.
5

State Stormwater Management Systems
Permit No. SWS 960315 Modification
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 28th day of May 2004.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E.', Director
(1� Division of Water Quality .
By Authority of the Environmental Management Commission
0

State Stormwater Management Systems
Permit No. SW8 960315 Modification
North Market Promenade
Stormwater Permit No. SW8 960315 Modification
New Hanover 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:
SEAL
Signature
Registration Number
Date

State Stormwater Management Systems
Permit No. SW8 960315 Modification
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
?. 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. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ Regional Office
New Hanover County Building Inspections
I

A&K #04024
Date R ceived
Fee Paid
Permit Numher
1213Y S vu-UD
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
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):
Pointe @ North Market, LLC
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Blaine East, Managing Member
3. Mailing Address for person listed in item 2 above:
206 Sherwood Forest Place
City: Cary State: NC Zip: 27519
Telephone Number: [phone]
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
North Market Promenade
5. Location of Project (street address):
5500 Market Street
City: Wilmington^_ County: New Hanover
6. Directions to project (from nearest major intersection):
Approximately 1,185 feet (0.22 miles) east from the intersection of College Roan (NC 132) and
Market Street (US Hwv. 17)
7. Latitude: 34" 14' 0" N
Longitude: 770 52' 30" W
of project
8. Contact person who can answer questions about the project:
Name: John A. Kuske, III, P.E. Telephone Number: [phone]
11. PERMIT INFORMATION
I . Specify whether project is (check one): New Renewal X Modification
& Name Change
Form SWU-101 Version 3.99 Page 1 of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
Existing permit number SW8 960315 Modification And its issue date (if known) November 20, 1997
3. Specify the type of project (check one):
Low Density X High Density X Redevelop General Permit X Other
& Name Change
4. Additional Project Requirements (check applicable blanks):
CAMA Major X Sedimentation/Erosion Control 404/401 Permit NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater from all site impervious areas will be treated in an existina 1 permitted stormwater
pond designed for 90% TSS. See State Stormwater Permit No. SW8 960315 Modification
enclosed. Please note that there is an overall reduction in the total impervious area.
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
3. Total Project Area: 1.92 AC 4. Project Built Upon Area: 76.00 %
5. How many drainage areas does the project have? 1
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drama e Area 1
Drainage Area 2
Receiving Stream Name
Spring Branch
Receiving Stream Class
"C SW"
Drainage Area
1.92 AC 183,636 SF
Existin x lm ervious * Area
See Below for Total Proposed
Proposed Impervious* Area
1.45 AC 163,400 SF Total
% Impervious* Area total
76.00%
'_'lm ervious* Surface Area
Draina e Area I
Drainage Area 2
On -site Buildings
0.42 AC 118,500 SF
On -site Streets
NIA
On -site Parking
0.97 AC 142,400 SF
On -site Sidewalks I Concrete
0.06 AC 12,500 SF
Other on -site
NIA
Off -site
NIA
Total: 1.45 AC 163,400 SF
Total:
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

How was the off -site impervious area listed above derived? NIA
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized 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.
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 he changed or deleted without the consent of the State.
2. No more than square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include
wood decking or the water surface of swimming pools.
Swales• shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
Built -upon area in excess of the permitted amount requires a state stormwater management permit modification
prior to construction.
5. All permitted runofffrom outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the
integrity and performance 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
Form SWU-103
Form SWU-104
Form SWU-105
Form S W U-106
Form SWU-107
Form SWU-108
Form SWU-109
Wet Detention Basin Supplement
Infiltration Basin Supplement
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Underground Infiltration Trench Supplement
Neuse River Basin Supplement
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the .Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
I . 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 form(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 1 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
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.
John A. Kuske, III, P.E.
Designated agent (individual or firm): Andrew & Kuske Consulting Engineers, Inc.
Mailing Address:
902 Market Street
City: Wilmington State: NC Zip: 28401
Phone: [phone] Fax: [phone]
VIII. APPLICANT'S CERTIFICATION
I, (print or type name ofperson listed in General Information, item 2) Blaine East, Managing Member ,
Certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions and
protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC
2 H.1000.
Signature:
Form SWU-101 Version 3.99 Page 4 of 4
Date: 4 - 1- o +

A&K #04024
Permit No. Sw$ L3 (o G 315 IVL. o
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: North Market Promenade
Contact Person: John A. Kuske, III, P.E. Phone Number: [phone]
For projects with multiple basins, specify which basin this worksheet applies to: 1
Note: Existing stormwater pond approved under SW8 960315 Modification on November 20, 1997
elevations
Basin Bottom Elevation
27.00
ft.
Permanent Pool Elevation
34.50
ft.
Temporary Pool Elevation
36.60
ft.
areas
(floor of the basin) Revised
(elevation of the orifices)
(elevation of the discharge structure overflow) Revised
Permanent Pool Surface Area 2,193 sq. ft. (water surface area at the orifice elevation)
Drainage Area 1.92 ac. (on -site and off -site drainage to the basin)
Impervious Area 1.45 ac. (on -site and off -site drainage to the basin)
Volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SAIDAI
Diameter of Orifice
Design Rainfall
Design TSS Removal Z
7,505 Cu. Ft.
NIA cu. ft. (combined volume of main basin and forebay)
5,621 Required
5,718 Provided cu. ft. (volume detained above the permanent pool)
NIA cu. ft. (approximately 20% of total volume) Not Required -
586 Cu. Ft. or 7.81% Under Original Approval in 1996.
2.6010.0260 (surface area to drainage area ratio from DWQ table)
1 in. (2 to 5 day temporary pool draw -down required)
1 in.
90 % (minimum 85% required)
Form SWU-102 Version 3.99 Page 1 of 4

Footnotes:
I . When using the Division SA/DA tables, the correct SA/DA 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.
2. In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90°/o TSS removal. The NCDI NR BMP manual provides design tables for both 85% TSS removal and 90°/o TSS removal.
II. 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 requirement 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.
r d. The temporary pool draws down in 2 to 5 days.
RIC— 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.
Aid I. 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.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
A portable pump can be provided as required.
III. 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) ❑ does
This system (check one) ❑ does
® does not incorporate a vegetated filter at the outlet.
® does not incorporate pretreatment other than a forebay.
Form SWU-102 Version 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
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 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 maintain a maximum 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 detention basin system semi-annually 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 shall be handled in 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 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 5.62 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 1 'f feet in the forebay, the sediment shall be removed.
2.25
BASIN DIAGRAM
(fill in the blanks)
o �a a5 Permanent Pool Elevation 34.50
Sediment Re oval El. 3 3� 75°
--------------- ---- Sediment Removal Elevation 28.88 75%
Bottom EI vation 36 5%--------------------------------- --- -----
�� ; n Bottom Elevation 27.00 25%
FOREBAY MAIN POND
5. Remove cattails 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 must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Version 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
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: Blaine East
Title: Managing Member
Address: 206 Sherwood Forest Place Cary, NC 27519
Phone: [phone]
Signature:
Date: L-i'- I -- O
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.
a Notary Public for the State of��`h
County of J� t� AN eN , do hereby certify that— -a'I CL-n
Personally appeared before me this ISi day of (gyp , and acknowledge the due
Execution of the foregoing wet detention basin maintenance requirements. Witness my hand and official seal.
SEAL
1. 1
Signature
My commission expires
Form SWU-102 Version 3.99 Page 4 of 4

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State Stormwator Mompmeat Systamx
permit No. sw8 9 ftg
Evstam t
Stormwate P t No_ SW8 960315
New Hann er ICounty
1
Bagtueer's Ic
if ication
I
l' i •i7 • . 1.
I 6 , as a duty registered Profossional Engineer in the State of
North C= Iin , having b en authorized to observe (periodicallyrkree4y*tthe construction of the
pkJectf #
F,4,)6Ln--0A"L' Lod (project)
for L . L. (Project Owner) hereby state that, to the best of my abilities, due
care and d. g nee ufas used'ia the observation of the project construction such that the construction was
observed t b built within substantial compliance and intent of the approved plans and specifications.
Noted devi*al t7s f om approved plans and specification:
Date
Ilia .III%.
R4
f S EAL
119966 '
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oero II1�alasp.e
Fax Wit /f-:�•Qif
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