SW8051135_CURRENT PERMIT_20051220

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW &Zn5-
DOC TYPE
ef CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
P�i 52�w
YYYYMMDD

�QF Wpr�R Michael F Easley, Governor
p G William G Ross, Jr, Secretary
North Carolina Department of Environment and Natural Resources
Q Alan W Klimek, P E Director
Division of Water Quality
December 20, 2005
Dr Ronald Core, Vice Chancellor
UNC - Wilmington
601 South College Rd
Wilmington, NC 28403
Subject Stormwater Permit No SW8 051135
UNCW - Wagoner Hall Renovation
High Density Project
New Hanover County
Dear Dr Core
The Wilmington Regional Office received a complete Stormwater Management Permit Application for
UNCW - Wagoner Hall Renovation on December 20, 2005 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 051135 dated December 20, 2005, for
the construction of the subject project
This permit shall be effective from the date of issuance until December 20, 2015, 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 Robert
Gordon, or me at [phone]
Sin cly,' er
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENBlydg S IWQSISTORMWATIPERMIT1051135 dec05
cc Shane Lippard, PE, Right Angle Engineering
Tony Roberts, New Hanover County Building Inspections
City of Wilmington Stormwater Services
Beth E Wetheriil, New Hanover County Engineering
Robert Gordon
CWiimmgton Regional Office
Central Files
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Servicel 877-623 6748 one
Wilmington Regional office Wilmington NC 28405 3845 FAX [phone] Internet h2o enr state no us NOrthCaCol/lna
An Equai opportunitylAf irmative Action Employer — 50% Recycledll0% Post Consumer Paper Naturally

State Stormwater Management Systems
Permit No SW8 051135 '
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
Dr Ronald Core & UNC - Wilmington
UNCW - Wagoner Hall Renovation
UNCW - New Hanover County
FOR THE
construction, operation and maintenance of an underground infiltration trench 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 December 20, 2015, 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 16 on page 3 of this permit The stormwater
control has been designed to handle the runoff from 1,900 square feet of
impervious area This trench must be operated with a 30 ft vegetated filter
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 built upon area available for
future development in this permit
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 051135
6 The following design criteria have been provided in the infiltration trench and
must be maintained at design condition
a Drainage 2Area, acres
Onsite, ft
Offsite, ft2
b Total Impervious Surfaces, ft2
c Design Storm, inches
d Trench Dimensions, L x W x H, ft
e Perforated Pipe Diameter/Length
f Bottom Elevation, FMSL
g Bypass Weir Elevation, FMSL
h Permitted Storage Volume, W
i Type of Soil
i Expected Infiltration Rate, Whir
k Seasonal High Water Table, FMSL
I Time to Draw Down, hours
m Receiving Stream/River Basin
n Stream Index Number
o Classification of Water Body
II SCHEDULE OF COMPLIANCE
020
8,700
0
1,900
1
40x10x12
6' /40 ft
358
385
197
Baymeade
1
338
56
UT, Bradley Creek 1 Cape Fear
18-87-24-4-(2)
"SC"
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 Mowin.9 and revegetation of slopes and the vegetated filter
d Immediate repair of eroded areas
e Maintenance of all slopes in accordance with approved plans and
specifications
f Debris removal and unclogging of bypass structure, filter media, flow
spreader, catch basins, piping and vegetated filter
g A clear access path to the bypass structure must be available at all times
Page 3 of 7

State Stormwater Management Systems
Permit No SW8 051135
4 Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ The records will indicate the date,
activity, name of person performing the work and what actions were taken
5 The facilities shall be constructed as shown on the approved plans This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data
6 Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation Any deviations from the
approved plans and specifications must be noted on the Certification A
modification may be required for those deviations
7 If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility
8 Access to the stormwater facilities shall be maintained via appropriate
easements at all times
9 The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below
a Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc
b Project name change
c Transfer of ownership
d Redesign or addition to the approved amount of built -upon area or to the
drainage area
e Further subdivision, acquisition, lease or sale of all or part of the project
area The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought
f Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan
10 The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction
11 A copy of the approved plans and specifications shall be maintained on file by
the Permttee for a minimum of ten years from the date of the completion of
construction
12 The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made '
Page 4of7

State Stormwater Management Systems
Permit No SW8 051135
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 20i" day of December, 2005
NORTH,CaROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
or Alan W Klimek, P E , Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5of7

State Stormwater Management Systems
Permit No SW8 051135
UNCW - Waggoner Hall Renovation
Stormwater Permit No SW8 051135
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
Page 6 of 7

State Stormwater Management Systems
4 Permit No SW8 051135
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 protect is graded such that the
runoff drains to the system
4 All roof drains are located such that the runoff is directed into the system
5 The bypass structure elevations are per the approved plan
6 The bypass structure is located per the approved plans
7 A Trash Rack is provided on the outlet/bypass structure
8 All slopes are grassed with permanent vegetation
9 Vegetated slopes are no steeper than 3 1
10 The inlets are located per the approved plans and do not cause short-
circuiting of the system
11 The permitted amounts of surface area and/or volume have been
provided
12 All required design depths are provided
13 All required parts of the system are provided
14 The required system dimensions are provided per the approved plans
cc NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspections
Page 7 of 7

R
OFFICE USE ONLY
Date Received Fee Paid Permit Number
2-. qom000 a y I
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMT APPLICATION FORM
7'hrs fonn rna), be pholocopcd for ute as an or rgural
I GENERAL INFORMATION
1 Applicants name (specify the name of the corporation, individual, etc who owns the project),
UNCW
2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance)
�r�rl.l�c D -U. 0-o1eE U ,cc. Cal y\c-V—�t or-
3 Mailing address for person listed in item 2 above
_601 South College Road _
City _ Wtlarungton _ _ State
Telephone Number 910-�962-3761
NC
Zip 28403
4 Project Name (subdivision, facility or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc )
Wagoner Hall Renovation
5 Location of Project (street address)
Walton Drive. UNCW cainuus
City WltnUngOD County New Hanover
6 Directions to project (from nearest major intersection)
College Road to Randall Drive Right on CabaI] Drive Ri t on Walton Drive Facility on_left
7 Latitude 34 2268*
Longitude 77 8735*
of project
8 Contact person who can answer questions about the project
Name Grp Walker Telephone Number 910 - 962-4020
11 PERMIT INFORMATION
l Specify whether project is (check one) ® New ❑ Renewal ❑ Modification
STORMWATER
EXPRESS
rorrsi swu 101 Page ] of 4
1

,
2 Ifthis 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 ❑404/40l Permit ❑NPDES Stonnwater
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 stomiwater management for the project
Addition of patio to building qualifies as pocket of high density and does not drain into an existing pond
or other BMP Runoff will be collected to an underground infiltration trench
2 Stonnwater runoff from this project drains to the
3 Total Project Area .03 0 4 acres
5 How many drainage areas does the project have9 1
Cape Fear _ River Basin
4 Project Built Upon Area
22
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 w the same format as below
Basin hifbmiation
Dramage ATea I
Drainage Area 2
Receiving Stream Name
UT - Bradley Creek
Receiving Stream Class
Sc
Drainage Area
8700 SF
Existing ervious * Area
0
Proposed Impervious * Area
1900 SF
ervious * Area total
22
Iin ervmous * Surface Aiea
Drain a Area 1
Drainage Area 2
On -site Buildm s
On -site Streets
On -site Parkin
On -site Sidewalks
400 SF
Other on -site
1500 SF
Off -site
Total 1900 SF
Total
*Impervious area is defined as the built upon area including, But not bnuled to, buildings, roads, parlang areas,
sidewalks, gi avel an ea, etc
Noun SWU-101 Version 3 99 Page 2 of

7 How was the off -site impervious area listed above derived?
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
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 1900 square feet of any lot shall be covered by structures or impervious materials
imperviouv materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swiniining 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 runojffrom outparcels or future development shall be directed into the permitted storm water control
system These connections to the storm water 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 Umt 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-l0i Version 3 99 Page 3 of 4

VI 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 i�-
• Permit application processing fee of ) AW&. Prq W S �-
• 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)
VII AGENT AUTHORIZTION
If you wish to designate authority to another individual or firm so that they may provide infon-nation on your
behalf, please complete this section
Designated agent (individual or firm) Right Angle Engineering
Mailing Address
212 Princess Street
City Wilmington State NC
Phone [phone]
VIII. APPLICANT'S CERTIFICATION
Fax [phone]
Zip 28401
1, (print or type name of person listed in General Information, item 2)T&.peC
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 co will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H 10QC
Signature Date /Q 6-1LL,dej J
Form SWU-101 Version 3 99 Page 4 of 4

Permit No S L-� � 05 { 1 3 S
(to be provided bg DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form nroy be pholocopted far use as an original
DWO Stormwater Management Plan Review
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stonnwater conveyances and system details
I PROJECT INFORMATION
Pi oject Name Wagoner Hall Renovation
Contact Person Greg Walker Phone Number 910-9624020
For projects with multiple infiltration systems, a supplement fore must be completed for each system This
worksheet applies to Trench 1 in Drainage Area 1
(from plans) tom Farnr SWU-101)
II DESIGN INFORMATION (attach supporting calculations/documentation)
Soils Report Summary (bused upon an actual field investigation and soil borings)
Soil Type Bameade T
Infiltration Rate .6-0- ( O 1n/11r or cf/hr/sf (cucle appiopr,ate units)
SHWT Elevation 338 fmsi (Seasonal High Water Table Elevation)
Trench Design Parameters
Design Volume
Design Storm
Drawdown Time
Perforated Pipe Size
Pei forated Pipe Length
188 cf
1 0 in eVe11W S in event for SA waters 1 ur event for others)
1.rs $�rf days
6 inch diameter
40
No Observation Wells 0
Stone Type (if used) #57
Stone Void Ratio 04
ft
(nray be required on a case —by -case basis)
Trencb Elevations (in feet mean sea level)
Bottom Elevation -35 fins]
Storage/Overflow Elevation 'W 3W- 5 fins]
F'omi S W U- 103 Rev 3 99 Page ] of 4
�e'JWs�-

Trench Dimensions
Height % -2 ft Length
Width JD ft Volume Provided
III. REQUIRED ITEMS CHECKLIST
40 ft
197� of
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(NC Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section 15 A NCAC 2H 1008
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached ]f the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below Attach justification if a requirement has not been met
Applicants initials
L. a System is located 50 feet from class SA waters and 30 feet from other surface waters
14W, b System is located at least 100 feet from water supply wells
W=L c Bottom of system is at least 2 feet above the seasonal high water table
V)�L d Bottom of the system is 3 feet above any bedrock of impervious soil horizon
WSL- e Off-line system, runoff in excess of the design volume bypasses the system(bypass detail provided)
(` �T f System is designed to draw down the design storage volume to the proposed bottom
Elevation under seasonal high water conditions within five days based upon infiltration
Through the bottom only (a hydrogeologic evaluation may be rquired)
I*SL g Soils have a minimum hydraulic conductivity of 0 52 inches per hour
144— h System is not sited on or in fill material or DWQ approval has been obtained
SL i Plans ensure that the installed system will meet design specifications (constructed or restored)
upon untiai operation once the project is complete and the entire drainage area is stabilized
j.at" ] 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
AL k 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
1 System captures and infiltrates the runoff from the first 1 0 inch of rainfall (1 5 inch event
for areas draining to SA waters)
- VCU _ m Drainage area foi the device is less than 5 acies
k Stf n A pretreatment device (filter step, grassed swale, sediment trap, etc ) is provided
W1, o Trench bottom is covered with a layer of clean sand to an average depth of 4 inches
Jd& p Sides of the infiltration trench are lined with geotextile fabric
AL _ q Rock used is free of fines (washed stone) and has a large void ratio
r Side to bottom area ratio is less than 4 1
1:onn SWU-107 Rev 3 99 Page 2 of 4
1�+► tti IS °r w1f

Ls Observation well (s) are provided (case -by -case basis)
L t Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters) and
detail is shown on plans
IV UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE
AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass 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 and blockages as needed to
maintain system performance
3 Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth
Restore depth to original design depth without over -excavating Over -excavating may cause the required
water table separation to be reduced and may compromise the ability of the system to perform as designed
4 The water level in any monitoring wells will be recorded after a 1 in rainfall event and at least once a
month Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three
months) shall be reported to DWQ immediately
If DWQ determines that the system is falling, the system will immediately be repaired or replaced to
original design specifications If the system cannot be repaired to perform its design function, other
stormwater control devices as allowed by NCAC 2H 1000 must be designed, approved and constructed
5 Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced
to 75% of the original design depth The system shall be restored to the original design depth without ove-
excavatmg Over -excavating 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 (1 e
stockpiling near a stormwater treatment device or stream, etc )
A benchmark shall be established in the infiltration system 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 depth at the benchmark reads —4 75 , the accumulated sediment shall be removed
from the system.
Form S W U-107 Rev 3" Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater collection
system in accordance with thy.. maintenance procedures listed above I agree to notify DWQ of any problems
with the system or prior tKany
Print Name and Title
Address UNCW, 601 South Co
Phone 91
Signature
to the system or responsible party
ilmmgton, NC 29403
Date /o�/'�'/moo 6-
Note* The legally responsible parfshould not be a homeowners association unless more than SO% of the lots have been sold and a
Resident of the subdivision has been named the presideni
I, I/c.41E779 //JAHG�i2,a Notary Public for the State of,�T,r� ��¢,�t/,y/� , County of
do hereby certify that ,�/f�� Z" &A E personally appeared before me this
/3 day of ,sw ,and acknowledge the due execution of the forgoing infiltration
basin maintenance requirements Witness my hand and official seal,
SEAT, My commission expires Veneta R Mahler
NOT'AHY PUBLIC
New Hanover County, North Carolina
My Commission Expires 9114/08
NOTAR y
m S. 40 _
=� PUBOC
VE"11111iR iGp,```�
Form 5 W U-107 Rev 399 Page 4 of 4