SW8040416_CURRENT PERMIT_20040423

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

W"A
Mr. E. Blanton Hamilton, Jr.
Southstar Holdings, LLC
200 Providence Road, Suite 106
Charlotte, NC 28207
Dear Mr. Hamilton:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources _1
Alan W. Klimek, P.E.,Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
April 23, 2004
Subject: Permit No. SW8 040416
Ogden. Walgreens #7919..
High Density Stormwater Project
New Hanover County
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Ogden Walgreens #7919 on April 23, 2004. 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. SW8 040416 dated April 23, 2004, for the
construction of Ogden Walgreens #7919.
This permit shall be effective from the date of issuance until April 23, 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 adjudicafory 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:1WQSISTORMWATIPERMIT1040416.apr04
cc: Larry Sneeden, P.E.
New Hanover County Building Inspections
Beth E. Wetherill, New Hanover County Engineering
Laurie Munn
Wilmington Regional Office
Central Files
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone] NUDNOR

State Stormwater Management Systems
Permit No. SW8 040416
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
Southstar Holdings, LLC
Ogden Walgreens #7919
New Hanover County
FOR THE
construction, operation and maintenance of an infiltration trench system 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 April 23, 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.
2. 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 56,000 square feet of impervious area. This
system meets the requirements of holding the 10 year - 10 minute event and infiltrating
the 25 year — 24 hour event. Therefore a vegetative filter is not required.
The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project will be recorded
showing all such required easements, in accordance with the approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from
outside of the approved drainage area.
2

State Stormwater Management Systems
Permit No. SW8 040416
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Receiving Stream/River Basin:
Stream Index Number:
Classification of Water Body:
Drainage Area, acres:
Onsite, sq. ft.:
Offsite, sq. ft.:
Design Storm:
Total Impervious Surfaces, ft'
Building, ft':
Roads/Parking, ft':
Other, ft':
Offsite, ftz:
Trench Dimensions, LxWxH,feet
Trench Bottom Elevation, FMSL:
Required Storage Volume, ft':
Provided Storage Volume, ft':
Bypass Elevation, FMSL:
Ogden Walgreens 47919
S W 8 040416
New Hanover County
Mr. E. Blanton Hamilton, Jr.
Southstar Holdings, LLC
200 Providence Road, Suite 106
Charlotte, NC 28207
April 23, 2004
Burnt Mill Creek / Cape Fear
CPF23 18-74-63-2
"C SW"
1.56
67,800
none, per engineer
1"
56,000
15,200
39,200
1,600
0
Connected Trench System
128.17' x 30.48' x 4.38'
2@78.17' x6.33'x4.38'
44.8
4,483
6,917
System can hold the 10 year —10 minute event and
infiltrate the 25 yr — 24 hour event, therefore no bypass
required.

State Stormwater Management Systems
Permit No. SW8 040416
11. 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.
3. The pennittee 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.
C. 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. 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. 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.
C. 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 pen -nit was
sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
4

State Stormwater Management Systems
Permit No. SW$ 040416
9. 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.
10. 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.
11. At least 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 stonnwater facilities will be restricted by
the sale or lease of any portion of the property.
12. 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.
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.
14. The penuittee must maintain the current penuitted 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.
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 limitafions 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 Pennittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall 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 penmittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stonnwater
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.
5

State Stormwater Management Systems
Permit No. SW8 040416
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.
4. The permittee shall notify the Division any name, ownership or mailing address changes
within 30 days.
Permit issued this the 23rd day of April 2004.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
6 z

State Stormwater Management Systems
Permit No. SW8 040416
Ogden Walgreens 97919
Stormwater Pen -nit No. SW8 040416
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:
Signature
Registration Number
Date
SEAL
7

State Storrnwater Management Systems
Permit No. SWS O40416
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. 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 pennanent vegetation.
S. 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
E:�

NKT #03020
Date
Beceived
Fee Paid
Permit Number
10 /oil
oo 0 ozro
I <,Mi
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
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Southstar Holdings, LLC
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
E. Blanton Hamilton, Jr., Member
3. Mailing Address for person listed in item 2 above:
200 Providence Road, Suite 106
City: Charlotte State: NC Zip: 28207
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.):
Ogden Walgreens #7919
5. Location of Project (street address):
6861 Market Street
City: _ Wilmington County: New Hanover
6. Directions to project (from nearest major intersection):
Southwest corner of Market Street US 17 and Gordon Road SR 204$
7. Latitude: 34Q 15' 44" Longitude: 770 49' 48" of project
8. Contact person who can answer questions about the project:
Name: C. Lawrence Sneeden, Jr., P.E. Telephone Number: (910)_ 343-9653
11, PERMIT INFORMATION
Specify whether project is (check one):
X New
Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4

2.
3.
4.
If this application is being submitted as the result of a renewal or modification to an existing permit, list the
Existing permit number NIA And its issue date (if known) NIA
Specify the type of project (check one):
Low Density X High Density Redevelop General Permit Other
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
l-877-623-6748.
Ill. 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.
Storage and infiltration of 2" rainfall event with no discharge of 25-near storm event.
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
3. Total Project Area: 1.56 AC 4. Project Built Upon Area: 83 %
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
Draina e Area 1
Draina e Area 2
Receiving Stream Name
Burnt Mill Creeks
IQ ` ' (Ps —
Receiving Stream Class
C SW
Drainage Area
1.56 AC / 67,800 SF
Existing Impervious * Area
0.36 AC 116,000 SF
To be removed
Proposed Impervious* Area
1.29 AC 156,000 SF
Impervious* Area (total)
83%
Im ervious* Surface Area
Drainage Area I
Drainage Area 2
On -site BuildiTgs & Canopy
0.35 AC / 15,200 SF
On -site Streets - Common drive to south
0.15 AC 16,400 SF
On -site Parking
0.75 AC 132,800 SF
On -site Sidewalks
0.04 AC 11,600 SF
Other on -site
NIA
Off -site
NIA
Total: 1.29 AC 156,000 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

7. How was the off -site impervious area listed above derived?
NIA
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS - NIA
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.
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 square feet ofany 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.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification
prior to construction.
All permitted runoff from 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
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
]s
• 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 / 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.
C. Lawrence Sneeden, Jr., P.E.
Designated agent (individual or firm): Norris, Kuske, & Tunstall 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 Informution, item 2) E. Blanton Hamilton, Jr., 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
2H.1000.
Signature:
Date: Leo
Form SWU-101 Version 3.99 Page 4 of 4

NKT #03020
Permit No. SW8 040416 _
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater application form, an
infiltration basin supplement for each system, design calculations, soils report and plans and
specifications showing all stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name: Ogden Walgreens #7919
Contact Person: C. Lawrence Sneeden, Jr., P.E. Phone Number: [phone]
This worksheet applies to: Basin No. 1 in Drainage Area 1
(as identified on plan) (front Form SWU--101)
II. DESIGN INFORMATION — Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable
source of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
M
13.5 Avg. In/hr or cf/hr/sf (circle appropriate units)
42.7 fmsl (Seasonul Nigh Water Table elevation)
1 inch (1.5 inch event for SA waters, 1 inch event for others)
4,480 c.f. (Store 10-yr/l Omin storm & 25yr/24 hr storm)
<0.1 Days
ft. x * ft. = 5,136 sq. ft (bottoin dimensions)
6,920 c.f. * I @ 30'x140' + 2 @ 6'x78'
44.8
48.3
AA A
finsl
fmsl
Fms] 47.8 for 2 single row trenches
Form SWU-103 Version 3.99 Page 1 of 3

W. 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
G C s ✓ a.
System is located 50 feet frorn class SA waters and 30 feet from other surface waters.
Gc-s b.
System is located at least 100 feet from water supply wells.
Ge-f c.
Bottom of system is at least 2 feet above the seasonal high water table.
✓d.
Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
Gas ✓e.
System is not sited on or in fill material DWQ approval has been obtained.
ec-f oal/j f.
System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
GLS ✓ g.
Drainage area for the device is less than 5 acres.
GLS h.
Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
G �-S
System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters). Design volume and infiltration calculations attached.
Gc- s ✓.
System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
r Cc-f k.
All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
ee-.r ✓ 1.
A pretreatment device such as a catch basin, grease trap, filter strip, grassed Swale or
sediment trap is provided.
Gc r CIA m.
Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches.
or dense vegetative cover is provided
6L4 N A n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters
,fef #/ o.
Flow distribution mechanism within the basin is provided.
Gil tl p.
A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
r.
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
G �� ✓s.
Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Version 3.99 Page 2 of 3

•IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
r
After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six -inches, and remove trash as needed.
After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be
restored to the original design depth without over -excavating. Over -excavation may cause the required
water table separation to be reduced and may compromise the ability of the system to perform as
designed. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a
manner that will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or
stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads 44 8 _ feet in the pretreatment unit, the sediment shall he
removed from both the pretreatment unit and the infiltration basin.
If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H A000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print Name and Title: E. Blanton Hamilton, Jr., Member
Address: 200 Providence Road. Suite 106
Phone: [phone]
Signature:
Charlotte, NC 28207
Date: 2-1 AZccoK
Note: The legally responsible party should not be a homeoirners association unless more than SO% of the lots have been sold
and a resident of the subdivision has been named the president.
I, 1Or)� 0, tw Y, , a Notary Public for the State of �C County of
do hereby certify that E. �j1k+. 6A t4z A-J'f n personally appeared before me this
day of Apyi I 2,yo 4- , and acknowledge the due execution of the foregoing infiltration
basin maintenance requirements. Witness my hand and official seal.
SEAL My co mission expires ¢-ZZ • 2009
Signature
Form SWU-103 1 Version 3.99 Page 3 of 3