SW8910501_CURRENT PERMIT_20210914

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 0
DOC TYPE
$J CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
/Zoz1 o%4
YYYYMMDD

ROY COOPER
covanar
ELIZABEfH S BISER
5eaemry
BRIAN WRENN
D&ecmr
September 14, 2021
NORTH CAROLINA
EnvkiinmatttdQuardy
Brunswick Community College
Ann Jack Luciano, Associate Vice President of Facilities
50 College Road
Bolivia, NC 28422
Subject- Permit Renewal
State Stormwater Management Permit No. SW8 910501
Odell Williamson Auditorium Addition: Athletics & Tennis Court Addition
Brunswick County
Dear Mr Luciano
Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality
(DWQ) to the Division of Energy, Mineral and Land Resources (DEMLR) All previous references to DWQ will
remain in older stormwater permits issued prior to August 1, 2013 until they are modified Please note that this permit
will now reference DEMLR as the Division responsible for issuance of the permit
On August 5, 2009, the Governor signed Session Law 2009-406 This law impacted any development approval issued
by the former Division of Water Quality under Article 21 of Chapter 143 of the General Statutes, which was current
and valid at any point between January 1, 2008, and December 31, 2010 The law extended the effective period of any
stormwarer permit that was set to expire during this time frame to three (3) years from its current expiration date On
August 2, 2010, the Governor signed Session Law 2010-177, which granted an extra year for a total of four (4) years
extension
The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for
the subject project on September 14, 2021 The Division is hereby notifying you that permit SW8 910501 has been
renewed on September 14, 2021, and shall be effective until December 21, 2028, which includes all available
extensions For your records, please find enclosed a renewed, updated, and re -issued permit and a copy of the renewal
application Please keep this permit on file at all times Please note that the renewed, updated, and re-Lssued permit
does not impose new or different terms, it merely restates some of the previous terms to provide you with a better
understanding of your obligations under the permit
The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the
terms and conditions of this state stormwater permit The plans originally approved on June 7, 1991 and most recently
modified on July 20, 2010, will remain in full force and effect in accordance with the regulations set forth in Title 15A
NCAC 2H 1000
This permit is subject to the conditions and limitations as specified therein Please pay special attention to the
conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed
restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit Failure to establish
an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions,
to transfer the permit, or to renew the permit, 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 by filing a written petition with the Office of Administrative Hearings (OAH) The written
petition must conform to Chapter 150B of the North Carolina General Statutes and must be filed with the OAH within
thirty (30) days of receipt of this permit You should contact the OAH with all questions regarding the filing fee (if a
filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or
via telephone at 919-431-3000, or visit their website at www NCOAH com Unless such demands are made this permit
shall be final and binding
xomgf�� D � Aft North Carolina Department of Environmental Quality I Dry on of Energy Mineral and Land Resources
512 North Salisbury Street 1 1612 Mad Service Center I Raleigh, North Carolina 27699-1612
..— /030
9197079200

State Stormwater Permit No SW8 910501
Page 2 of 2
If you have any questions, need additional copies of the permit or approved plans, please contact Ashley Smith in the
Wilmington Regional Office, at [phone] or ashleym smith@ncdenr gov
Sincerely, �J
ckat R A
Bran Wrenn, Director
Division of Energy, Mineral and Land Resources
Enclosures Attachment C — Permitting History
Renewal Application Docurnents
DES/ams \\\Stormwater\Pemuts & Projects\ 1 991\910501 HD\2021 09 permit 910501
cc NCDEQ-DEMLR Wilmington Regional Office
4�FQ North Carolina Department of Emvonmental Quality I Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Sernce Center I Raleigh. North Carolina Z/699-1612
9197079200

State Stormwater Management Systems
Permit No SW8 910501
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL 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
Brunswick Community College
Odell Williamson Auditorium — Athletic Fields / Tennis Courts Addition
Off US Hwy 17, 3 miles north of intersection with NC Hwy 211, Brunswick County
FOR THE
construction, operation and maintenance of one (1) wet detention pond in compliance with the
provisions of 15A NCAC 2H 1000 effective September 1, 1995 and Session Law 2008-211 effective
October 1, 2008 (hereafter collectively referred to as the "stormwater rules'), the approved stormwater
management plans and specifications, and other supporting data as attached and on file with and
approved by the Division of Energy. Mineral and Land Resources (the "Division" or "DEMLR") and
considered an enforceable part of this permit
This permit shall be effective from the date of issuance until December 21, 2028, and shall be subject
to the following specified conditions and limitations
I DESIGN STANDARDS
1 This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data
2 This stormwater system has been approved for the management of stormwater runoff as
described in Section 1 7 on page 2 of this permit, and per approved plans The stormwater
control has been designed to handle the runoff from 324,186 square feet of impervious area
3 A 50' wide vegetative buffer must be provided adjacent impounded structures, streams, rivers
and tidal waters
4 The tract will be limited to the amount of built -upon area indicated in Section 1 7 on page 2 of
this permit, and per approved plans
5 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
6 The runoff from all built -upon area within the permitted drainage area(s) of this project must be
directed into the permitted stormwater control system
Page 1 of 5

State Stormwater Management Systems
Permit No SW8 910501
The following design criteria have been provided in the wet detention pond and must be
maintained at design condition
a
Drainage Area, acres
1519
Onsde, ft2
651,573
Offsite, ft2
0
b
Total Impervious Surfaces, ft2
324,186
Buildings, ft2
79,191
Streets / Parking, ft2
155,879
Sidewalks, ft2
39,916
Other, ft2
43,200
Future, ft2
6,000
Offsite, ft2
0
c
Design Storm, inches
1" @ 272,865 sf*
& 1 5" @ 51,321 sf**
d
Average Pond Design Depth, feet
75
e
TSS removal efficiency
90%
f
Permanent Pool Elevation, FMSL
336
g
Permanent Pool Surface Area, ft2
9,797
h
Permitted Storage Volume, ft3
32,885 at temporary pool elev
i
Temporary Storage Elevation, FMSL
36
f
Pre-dev 1 yr-24 hr discharge rate, cfs
05
k
Controlling Orifice
2 5"0 pipe
I
Orifice flowrate, cfs
015
m
Permitted Forebay Volume, ft3
NA
n
Fountain Horsepower
1/2
o
Receiving Stream/River Basin
Clark Branch / Lumber
p
Stream Index Number
15-25-1-7
q
Classification of Water Body
"C, Sw"
*Subject to 15A NCAC 2H 1000, effective September 1, 1995
** Subject to SL2008-211, effective October 1, 2008
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
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 time provide the operation and maintenance necessary to assure the
permitted stormwater system functions at the design condition 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 re -vegetation 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 DEMLR The records will indicate the date, activity, name of person
performing the work and what actions were taken
Page 2 of 5

State Stormwater Management Systems
Permit No SW8 910501
Decorative spray fountains are allowed in the pond, subject to the following criteria
a The minimum permanent pool volume is 30,000 cubic feet
b The fountain must draw its water from less than 2' below the permanent pool surface
c 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
d The fountain may not be placed into the forebay
e The falling water from the fountain must be centered in the main pond, away from the
shoreline
f The maximum horsepower for a fountain in this pond is 1/2 horsepower
6 The facilities shall be constructed, operated and maintained in accordance with the provisions
of this permit, the approved plans and specifications, and the supporting documents attached
to this permit and on file with the Division
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
If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to occupancy of the
facility
9 Access to the stormwater facilities for inspection and maintenance shall be maintained via
appropriate recorded easements at all times
10 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
11 No person or entity, including the permittee, shall alter any component shown in the approved
plans and specifications Prior to the construction of any modification to the approved plans,
the permittee shall submit to the Director, and shall have received approval for modified plans,
specifications, and calculations including, but not limited to, those listed below For changes to
the protect or SCM that impact the certifications, a new or updated certification(s), as
applicable, will be required and a copy must be submitted to the appropriate DEQ regional
office upon completion of the modification
a Any modification to the approved plans and specifications, regardless of size including
the SCM(s), BUA, details, etc
b Redesign or addition to the approved amount of BUA or to the drainage area
c Further development, subdivision, acquisition, lease or sale of any, all or part of the
protect and/or property area as reported in the approved plans and specifications
d Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or
vegetative conveyance shown on the approved plan
e The construction of any allocated future BUA
f The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included in
the approved plans and specifications
g Other modifications as determined by the Director
12 Prior to transfer of the permit, a file review and site inspection will be conducted by Division
personnel to ensure the permit conditions have been met and that the protect and the on -site
stormwater system complies with the permit conditions Any items not in compliance must be
repaired, replaced restored, or resolved prior to the transfer Records of maintenance activities
performed to date may be requested
Page 3 of 5

State Stormwater Management Systems
Permit No SW8 910501
III GENERAL CONDITIONS
1 Any individual or entity found to be in noncompliance with the provisions of a stormwater
management permit or the requirements of the stormwater rules is subject to enforcement
procedures as set forth in NCGS 143 Article 21
2 The issuance of this permit does not preclude the permittee from complying with and obtaining
any other permits or approvals that are required for this development to take place, as
required by any statutes, rules, regulations, or ordinances, which may be imposed by any
other Local, State or Federal government agency having jurisdiction Any activities undertaken
at this site that cause a water quality violation or undertaken prior to receipt of the necessary
permits or approvals to do so are considered violations of NCGS 143-215 1, and subject to
enforcement procedures pursuant to NCGS 143-215 6
3 If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective
actions This includes actions required by this Division and the stormwater rules such as the
construction of additional or replacement on -site stormwater systems These additional or
replacement measures shall receive a permit from the Division prior to construction
4 Permit Transfer This permit is not transferable to any person or entity except after notice to
and approval by the Director The permittee shall submit a completed and signed "Permit
Transfer Application Form" (available on the Division website) accompanied by the required
fee and supporting documentation as listed on the form, to the Division at least 60 days prior
to any one or more of the following events
a The sale or conveyance of the project area in whole or in part, except in the case of an
individual lot sale that is made subject to the recorded deed restrictions and protective
covenants,
b Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or
NCGS 57D-6-07 and 08,
c Bankruptcy,
d Foreclosure, subject to the requirements of Session Law 2013-121,
Current Permittee Name or Address Changes The permittee shall submit a completed
"Permit Information Update Application Form" (available on the Division website) to the
Division within 30 days to making any one or more of the following changes
a A name change of the current permittee,
b A name change of the project,
c A mailing address change of the permittee,
6 The permittee is responsible for compliance with all terms and conditions of this permit until
the Division approves the transfer request Neither the sale of the project, in whole or in part,
nor the conveyance of common area to a third party constitutes an approved transfer of the
permit
7 The permittee grants Division Staff permission to enter the property during normal business
hours to inspect all components of the permitted project
8 The permit issued shall continue in force and effect until the permittee files a request with the
Division for a permit modification, transfer, renewal, or rescission, however, these actions do
not stay any permit conditions
9 Approved plans, application documents, supplements, calculations, operation and
maintenance agreement, and specifications for this project are incorporated by reference and
are enforceable parts of the permit A copy of this permit, application, supplements, operation
and maintenance agreement, and approved plans and specifications shall be maintained on
file by the permittee
10 Unless specified elsewhere, permanent seeding requirements for the on -site stormwater
system must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual
Page 4 of 5

State Stormwater Management Systems
Permit No SW8 910501
11 The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the
laws, rules, and regulations contained in Title 15A NCAC 2H 1000 and NCGS 143-215 1 et al
12 A permit renewal request must be submitted at least 180 days prior to the expiration date of
this permit The renewal request must include the appropriate application, documentation and
the processing fee as outlined in Title 15A NCAC 02H 1045(3)
Permit renewed, updated and reissued this the 14th day of September 2021
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Clot: A
rian Wrenn, Uirector
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 5

Attachment C - Permitting History
Odell Williamson Auditorium Addition Athletic Field & Tennis Courts
Permit No SW8 910501
Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
6/7/ 1991
Original
Approval
1 0
12/22/2006
Modification
I I
can handle runoff from 272,865 sq ft of
impervious area, future impervious
allocation
7/20/2010
Modification
1 2
can handle runoff from 324,186 sq ft of
impervious area, future impervious
allocation
9/14/2021
Renewal
20

7m,
Permit Number 5 W 9 9 I D SO I
(to be provided by DWQ)
Dramage Area Number
Wet Detention Basin Operation and Maintenance Agreement
of if'l-'Wl000¢
I will keep a maintenance record on this BMP This maintenance record will be kept in a
log in a known set location Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately These deficiencies can affect the mtegnty
of structures, safety of the public, and the removal efficiency of the BMP
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks)
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency dram should be mutirr zed to the
maximum extent practical
— Once a year, a dam safety expert should inspect the embankment
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 10 inches (or 15 inches if in a
Coastal County) Records of operation and maintenance should be kept in a known set
location and must be available upon request
Inspection activities shall be performed as follows Any problems that are found shall
be repaired immediately
BMP element-
Potential problem
How I will remediate the problem
The entire BMP
Trash debris is present
Remove the trash/debris
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed
remove the gully, and then plant a
ground cover and water until it is
EIVED
established Provide hme and a
one-time fertilizer application
R 0 5 2010
Vegetation is too short or too
Maintain vegetation at a height of
long
approximately six inches
Form SW40I-Wet Detention Basin O&M -Rev 4
Page 1 of 4

Permit Number S W -� 7 /63SO /
(to be provided by DWQ)
Drainage Area Number /
BMP element-
Potential problem
How I will remediate the problem
The inlet device pipe or
swale
The pipe is clogged
Unclog the pipe Dispose of the
sediment off -site
The pipe is cracked or
Replace the pipe
otherwise damaged
Erosion is occurring in the
Regrade the swale if necessary to
swale
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion
The forebay
Sediment has accumulated to
a depth greater than the
Search for the source of the
sediment and remedy the problem if
original design depth for
possible Remove the sediment and
sediment storage
dispose of it in a location where it
will not cause impacts to streams or
the BMP
Erosion has occurred
Provide additional erosion
protection such as reinforced turf
matting or nprap if needed to
prevent future erosion problems
Weeds are present
Remove the weeds, preferably by
hand If pesticide is used, wipe it on
the plants rather than s ra in
The vegetated shelf
Best professional practices
Prune according to best professional
show that pro rung is needed
practices
to maintain optimal plant
health
Plants are dead, diseased or
Determine the source of the
dying
problem soils, hydrology, disease,
etc Remedy the problem and
replace plants Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary
Weeds are present
Remove the weeds, preferably by
hand If pesticide is used, wipe it on
the plants rather than spraying
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible Remove the sediment and
storage depth
dispose of it in a location where it
will not cause impacts to streams or
the BMP
Algal growth covers over
Consult a professional to remove
50% of the area
and control the algal growth
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray)
the basin surface
Form S W401-Wet Detention Basin O&M -Rev 4 Page 2 of 4

Permit Number SW 8 CI l DSy /
(to be provided by DWQ)
Drainage Area Number /
BMP element-
Potential problem
How I will remediate the problem
The embankment
Shrubs have started to grow
Remove shrubs immediately
on the embankment
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present
consult a professional to remove
beavers
A tree has started to grow on
Consult a dam safety specialist to
the embankment
remove the tree
An annual inspection by an
Make all needed repairs
appropriate professional
shows that the embankment
needs repair if applicable)
The outlet device
Clogging has occurred
Clean out the outlet device Dispose
of the sediment off -site
The outlet device is damaged
Repair or replace the outlet device
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet
the 401 Oversight Unit at 919-733-
1786
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments
When the permanent pool depth reads 71 feet in the main pond, the sediment
shall be removed
When the permanent pool depth reads N A feet in the forebay, the sediment
shall be removed
hi
t1oF�, ?or,d Was �errxi{t'cd Prt o! elmiy re`%uirzmeti't
Sediment Removal
Bottom E
N/A I
-----------------
FOREBAY
BASIN DIAGRAM
(fill in the blanks)
!ft Min
Sediment
Storage
Permanent Pool Elevation 33 60
Pool
Sediment Removal Elevation 26 50 Volum
---- ------------- - -- - -- - - ----
Bottom Elevation
MAIN POND
1-ft
Storage
Form SW401-Wet Detention Basin O&M -Rev 4 Page 3 of 4

Permit Number S W S c'l /DSOI
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party
Project name Brunswick Community College - Tennis Courts and Baseball Field
BMP drainage area number
Print name Dr Stephen Greiner
Title President
Address P O Box 30 Supply, NC 28462
Phone [phone]
Signature
Date
Note The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president
I, rI 66i;? 7[ 1C G / fiuls L I -,a Notary Public for the State of
d,.0 ,( ep w 4wA , , County of 61Ia4..Aa!!4%L , do hereby certify that
3 fEptiE%) �1YE/aJEI� personally appeared before me this Ot(
day of AAuQifhr 0 /U , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements Witness my hand and official
SEAL
My commission expires�aG>�( A'0/eL
Form SW40I-Wet Detention Basin O&M -Rev 4 Page 4 of 4

BRUNSWICK COMMUNITY COLLEGE
ODELL WILLIAMSON AUDITORIUM
OPERATION AND MAINTENANCE MANUAL
for
STORM WATER RETENTION FACILITY
General: The storm water management system for this site is designed as a wet detention
facility The system consists of the wet detention pond located on the east end of the tract
The pond is designed to meet the State stormwater regulations for water quality Controlled
release of the first 1 inch of runoff from impervious surfaces is through an orifice on a
negatively sloped outlet pipe
Operation. The wet detention pond is designed to maintain a permanent water pool with
an average depth of 4 feet The pond is designed to temporarily store an amount of water
equivalent to 1 inch of storm water runoff from the impervious areas above the normal pool
In the event of a 1 inch rainfall, the wet detention pond is designed such that the water
surface will rise approximately 120 feet above the normal pool level This increase in water
depth will slowly recede to the normal pool level in a two to three day time period This
drawdown time is controlled by a 1 inch diameter PVC drawdown pipe submerged 1 foot
below the normal pool elevation to reduce the possible accumulation of trash on the orifice
In ram events which produce more than the 1 inch runoff, excess runoff will be routed over
a riser weir to a vegetative filter downstream of the pond outlet This diversion system is
designed based on the ten year frequency storm event, therefore flooding in excess of the
available storage within the wet detention pond should be relatively infrequent
Maintenance: Several areas will need attention by owner's maintenance personnel for the
continued performance of this system as designed and as required by the Division of
Environmental Management These items are detailed as follows
1 Grassing around the wet detention pond and all swales shall be maintained to prevent
the erosion of these areas The areas shall be periodically mowed to maintain the
aesthetic quality of the site and to prevent a reduction in capacity of the storm water
system
2 Landscaping of the area around the wet detention pond shall be of the type and
located such that it will not reduce the capacity or operation of the storm water
system
3 Following each rain event at the site, the drawdown tube orifice shall be checked for
accumulation of debris and cleared of any blockage that is present If the water level
following a rain event fails to recede to the normal pool elevation within the two to
three day time period, the Engineer must be notified as soon as possible If the
water level fails to recede within a period of five days following a rain event, the
Owner must notify the Division of Environmental Management, 127 Cardinal Drive
Extension, Wilmington, NC [phone]

A
Brunswick Community College, Williamson Auditorium
Stormwater Operation and Maintenance Manual
Page 2
4 Storm drainage pipes and culverts shall be inspected periodically for debris and sand
build-up These shall be cleaned as necessary to provide for the conveyance of storm
water as designed
5 The wet detention pond depth shall be maintained at the design depth The pond
shall be inspected a minimum of every six months and cleaned as necessary
6 No modifications shall be made to the system without notification of the Engineer or
approval from the Division of Environmental Management
Party Responsible for Maintenance of Stormwater Management System
BRUNSWICK COMMUNITY COLLEGE
Ben DeBlois, Vice President for Administrative Services
Date

UtMLK Ubt ONLY
Date Recewed
I Fee i=md
Permit Number
4
1c 3U 5 5 8' J7 S �I
SLR' lbSb
PC 3aW7
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER-
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H 1045(3), the current permit holder shall renew their high density permit 180 days
pnor to its expiration Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60 (c) This application form is for permit renewals only
A PROJECT INFORMATION 1:7 _
1 State Stormwater Permit Number-
2 SI �)
Protectname 0�21` Wittt/�.1fc✓ lq�ti�/it✓n �y��C �cts��li�nrC Ktim�' �Dv1i9-w
3 Protect street address +
City Qat (V1 4 /1lc County 1"VJ^Vtu- ZIP Z'1r
4 What, if any, changes have been made to the protect as permitted? A /4
If the pro/ect has changed from the original approved plans, please complete SWU-101 fora Ma/or
Modification or Minor Modification Application form available at https //deg nc gov/about/divisions/energy-
mineral-land-resources/energy-mineral-land-rules/stormwater-program/post-construction
B PERMITTEE INFORMATION
If changes to the permittee or pro/ect name have been made, please complete either the Permit Update form
or the Permit Transfer form available at https //deg nc oov/about/divisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction State Stormwater Permits do not
automatically transfer with the sale of the property
1 Current Permit Holders Company Name/Organization S&AYW)e-K `Ge%MVy? r CCL-LG'nu
2 Signing Official's Name
3 Signing Official's Title
4 Mailing Address c;, L L e$Q PD
City R&A-i✓IA State NL
5 Street Address
City
6 Phone Gc I ) %SS 7331� Email
Blilni�IGKCC , e.d V
rv:
ZIP
SEP 0 7 2021
BY—
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

C SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW) Only applications packages that
include all required items listed below will be accepted and reviewed
lnit l each item below to indicate that the required information is provided in the application package
1 A permit application processing fee of $505 00 payable to NCDEQ
2 One original signed hard copy and one electronic copy of this completed form The signing official
named on this application to represent the current permittee must meet one of the following
a Corporation — a principle executive officer of at least the level of vice-president,
b Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G S 57D "North Carolina Limited Liability Company Act,"
c Public Entity — a principal executive officer, ranking official, or other duly authorized employee,
d Partnership or limitea partnership — the general partner,
e Sole proprietor, or
f Letter of authorization signed by one of the signatories noted in a — e above authorizing the
N� signature of another entity
3 One hard copy and one electronic copy of recorded documents required by the original permit that
have not yet been received by DEMLR, including deed restrictions, protective covenants,
condom imum/planned community declaration and easements If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date
4 Agreements, Please select one
I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit, or
❑ I do not have a copy of the current recorded 0&M Agreement for all SCMs and am
tp� requesting a copy be sent to me I agree to keep this on file with the permit
A I 5 Designer Certifications, Please select one
U ❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division, or
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed, or
The project has not yet been built
NI 6 [IF APPLICABLE) If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance voth the permit
7 [IF APPLICABLE) When the permittee is a corporation or a limited liability corporation (LLC)
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C 2 per 15A NCAC 2H 1043(3)(b)
httos llwww sosnc gov/online services/search/by title/ Business Registration
��CO fyr OC—,i
SEP 011021
BY
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D PERMITTEE'S CERTIFICATION
I, ��'�� /Ltl�(f%r✓L' , the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures and the site has been and will be maintained
according to the 0&M Agreement and approved plans I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit he proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership Information provided on this permit renewal application is to the best of my
knowledge, correct and com
Signature A, A6r- Date
NOTARIZATION
I, �L'1 V1'0_ l� � C t t y_q a Notary Public for the State of
,C�olunty of r ns w 1 cK do hereby certify
that �_v C o�h O personally appeared before me
this the day of l , 20_, and acknowledge the due
exe UAH11%;orgoing instrument
'.\N1A A
�tdotary Seal)
IAOTI,
Witness my hand and official seal,
r�
SEp 0) 2021
Storrnwater Permit Renewal Apphaation Foi m Page 3 of 3 May 11, 2018

Perron No
(to be pmvded by DWO)
®��
O`�OF W ATFgOG
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out printed and submitted
The Required Items Checklist (Part III) must be primed, filled out and submitted akmg with all of the required information
I PROJECT INFORMATION
Project name
Bmnswlck Community College Odell Williamson Audltonum / Atheltic Field Addition
Contact person
J Phillip Noms, P E I Norris Kuske & Tunstall Consul1mg Engineers, Inc
Phone number
910-287 5900
Date
10-Feb-10
Drainage area number
1
II DESIGN INFORMATION
Site Characteristics
Drainage area
661,573 ft
Impervious area, post -development
324 186 fe
% Impervious
Design rainfall depth
4900 % t r 11
1&151n I✓1CIVdeS b0'+11 IMP. �ar �vE�5r5"ID(NlS
Storage Volume Non SA Waters
Minimum volume required
32 665 ft' #VALUE'
Volume provided
32 885 fO Do NOT fill out BOTH Non -SR and SR data
OK, volume provided is equal to or in excess of volume required
Storage Volume SAWaters
1 5' ruraft volume
NIA ft'
Pre -development 1-yr 24 hr runoff
N/A ft'
Post -development 1 yr, 24 hr runoff
NIA to
Minimum volume required
#VALUEI ft'
Volume provided
NIA ft' Do NOT fill out BOTH Non -SA and SA data
#VALUEI
Peak Flow Calculations
Is the pre/post control of the 1 yr 24hr storm peak flow required?
1 yr 24-hr rainfall depth
Rational C pre -development
Rational C post -development
Rainfall Intensity 1 yr, 24 hr storm
Pre-developmenll-yr 24-hr peak flow
Postdevelopment 1-yr 24-hr peak flow
Pre/Post 1 yr 24-hr peak flow control
Elevabons
Temporary pool elevation
Permanent pod elevation
SHWT elevation (approx at the pen pool elevation)
Top of 1011 vegetated shelf elevation
Bottom of 108 vegetated shelf elevation
Sediment deanout top elevation (bottom of pond)
Sediment deanout bottom elevation
Sediment storage provided
Is there addlhoral volume stored above the state -required temp pool?
Elevation of the top of the additional volume
N (Y or N)
101n
051 (untless)
057 (umdess)
370 Whr OK
18 56 t1'lsac
2067 fts/sec
211 ft'/sec
EECEIVED
MAR 0 5 2010
3600 final
3360 final
N/A fmsl PSI >nCCi ([Of
NIA fmsl tip r., d d
N/A fmsl 'i"D he L,3 '(e q xs \4�0✓i5
NIA fmsl J
25 50 hnsl
#VALUEIfi #VALUE'
N (Y or N)
N/A final Insufficient Must equal the temp pool elev previously entered
Form SW401 Wet Detention Basin -Rev 8-9/17109 Paris I & 11 Design Summary Page 1 of 2

Pemmit No
(to be povde0 by DWQ)
II DESIGN INFORMATION
Surface Areas
Area temporary pool
17,607 ft'
Area REQUIRED permanent pool
9 659 ft'
SAIDA ratio
146 (unNess)
Area PROVIDED, permanent pool At
9 797 ft OK
Area bottom of 1011 vegetated shelf A L e,
NIA ft
Area sediment deanout, top elevation (bodom of pond) A,,.,
NIA ft
Volumes
Volume temporary pool
32885 its
#VALUEI
Volume, permanent pool, Vp,,_,,
N/A ft2
desp•O Q,4{
S
Prior �n e
Volume frbay (sum of forebays it mom than one forbay)
N/A I,
Forebay %of permanent pool volume
#VALUEI %
#VALUEI
SAIDA Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
Y (Y or N)
MountainlPiedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
146 (um0ess)
Average depth (used in SA/DA table)
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, Vim,,,
NIA ft'
Area provided, permanent pool, Arc _pw
9,797 ft'
Need 3 ft
Q J d. cp" Q.s
Average depth calculated
Average depth used in SAIDA, dam, (Round to nearest 0 5ft)
ft min
ft
5 e G 712Ci dh e-Y. t 5'�'1 n�
Calculation option 2 used? (See Figure 10-21h)
N (Y or N)
P e m t-
Area provided, permanent pool, A.,,
9 797 ft
Area, bottom of 10ft vegetated shelf Abs_,e,
NIA ft
Area sediment dearout, top elevation (bottom of pond), Amya,r
NIA R'
'Depth' (distance b/w bottom of 10ft shelf and top of sediment)
#VALUEI ft
Average depth calculated
750 ft OK
Average depth used in SAIDA d.. (Round to nearest 0 511)
75 It OK
Drawdown Calculations
Drawdown though antics?
Diameter of onfice In circular)
Area of onfice (d-noncmmular)
Coeffiaent of discharge (CD)
Driving head (Ho)
Drawdown through weir?
Weir type
Coefficient of discharge (C,)
Length of weir (L)
Dmrng head (H)
Predevelopment 1-yr 24-hr peak flow
Post -development 1 yr 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown toe
Additional Information
Y (Y or N)
250 in Enter either diameter of onfice or area of nontrcular onfice Do not enter
NIA m' both diameter and area for a arcular onfice
NIA (unrtless)
083 It
N
(Y or N)
N/A
(unrtless)
N/A
(ordess)
NIA
It
N/A
It
18 56 ft'/sec
20 67 it'lasc
015 ftslsm
252 days
OK, draws down in 2 5 days
Vegetated side slopes
3 1
OK
Vegetated shelf slope
N/A 1
OK
Vegetated shelf width
NIA ft
OK
Length of flowpath to width rabo
3 1
OK
Length to width ratio
30 1
OK
Trash rack for overflow & onfice?
Y
(Y or N)
OK
Freeboard provided
20 ft
OK
Vegetated filter provided?
N
(Y or N)
OK
Recorded drainage easement pmvrdedv
Y
(Y or N)
OK
Capums all mno0 at ultimate bumld�ouf/
Y
(Y or N)
OK
Dram mechanism for maintenance or emergencies is
pump out
Fan SW401 We Detention BevrvRev 8 9/17A9 Peru I & It Design Summary Pape 2 or 2

Permit No S� Z 9 1 D Sa 1
(to be provided by DWQ)
III REQUIRED ITEMS CHECKLIST
Please Indicate the page or plan sheet numbers where the supporting documentation can be found An incomplete submittal package will
result in a request for additional Information This will delay final review and approval of the project Initial in the space provided to
indicate the following design requirements have been met If the applicant has designated an agent, the agent may initial below If a
requirement has not been met, attach justification
Pagel Plan
1pv4als Sheet No
C ( 1 Plans (1" - 50' or larger) of the entire site showing
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement
CS 2 Partial plan (1' = 30' or larger) and details for the wet detention basin showing
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
- Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
- Vegetation specification for planting shelf, and
-Filter stop
CS 3 Section view of the wet detention basin (1" = 20' or larger) showing
- Side slopes, 31 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures
4 If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin
5 A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided
A
6 A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized
✓/ 7 The supporting calculations
�' �✓ 8 A copy of the signed and notarized operation and maintenance (0&M) agreement
µ� Oc 9 A copy of the deed restrictions (if required)
NIA 10 A soils report that is based upon an actual field investigation, soil bonngs, and Infiltration tests County
soil maps are not an acceptable source of soils information
r MOVI LOVS" -r &.rr17 P"W
Form SW401-Wet Detention Basin -Rev 8-9/17/09 Part III Required Items Checklist Page 1 of 1

1
N KT #06031
Permit No 6 h)8 q ► 1 JO► tl o
State of North Carolina (to be provided by D WQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopted for use as an original
DWO 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 Odell Williamson Auditorium Addition & Athletics and
Contact Person J Phillip Norris, P E Phone Number
For projects with multiple basins, specify which basin this worksheet applies to
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation
areas
2550 ft
3300 ft
3550 ft
Permanent Pool Surface Area 8,870 sq ft
Drainage Area 12 528 ac
Impervious Area 6 264 ac
Center
[phone]
(/loor of the basin)
(elevation of the orifices)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off stte drainage to the basin)
(on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume 43,575 cu ft (combined volume of main basin and forebay)
Temporary Pool Volume 28,212 cu ft (volume detained above the permanent pool)
Forebay Volume 8,630 cu ft (approximately 20% of total volume)
Other parameters
SA/DA' 0 015 (surface area to drainage area ratio from DWQ table)
Diameter of Onfice 20 in (2 to 5 day temporary pool draw -down required)
Design Rainfall 10 in
Design TSS Removal 2 90 % (minimum 85% required)
Form SWU-102 Version 3 99 Page 1 of 4

Footnotes
When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing shook] be computed based upon the
actual impervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non-
standard table entries
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
900/oTSS removal The NCDENR BW manual provides design tables for both 85% TSS removal and 909/6TSS removal.
H. 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.
a The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
b The forebay volume is approximately equal to 20% of the basin volume
c The temporary pool controls runoff from the design storm event
d The temporary pool draws down in 2 to 5 days
e If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations
f The basin length to width ratio is greater than 3 1
g The basin side slopes above the permanent pool are no steeper than 3 1
h A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail)
i Vegetative cover above the permanent pool elevation is specified
J A trash rack or similar device is provided for both the overflow and orifice
k A recorded drainage easement is provided for each basin including access to nearest right-
of-way
1 If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified pnor to use as a wet detention basin
A mechanism is specified which will dram the basin for maintenance or an emergency
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 ® does not incorporate a vegetated filter at the outlet.
This system (check one) ❑ does ® 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
Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition
Check and clear the onfice of any obstructions such that drawdown of temporary pool occurs
within 2 to 5 days as designed
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
Inspect and repair the collection system (i a catch basins, piping, swales, nprap, etc ) quarterly to
maintain proper functioning
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 R will give an accurate
depth reading and not readily penetrate into accumulated sediments
When the permanent pool depth reads 562 feet in the main pond, the sediment shall be removed
When the permanent pool depth reads 30 feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
till to the blanks)
Permanent Pool Elevation 33 00
Sediment Re oval El 30 00 75°
-------- --- --- Sediment Removal Elevation 27 38 75%
Bottom Elewanon 29 00 1 15% - ---- - ----
Bottom Ell evation 2550 25%/
FOREBAY MAIN POND
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
If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency dram shall be minimized to the maximum extent practical
Form SWU-102 Version 3 99 Page 3 of 4

All components of the wet detention basin system shall be maintained in good working order
I 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 pnor to any
changes to the system or responsible party
Print name Stephen Greiner
Title President
Address PO Box 30 Supply, NC 28462
Phone [phone]
Signature �CtM 2a KPn
Date 7 -1 a - o C
Note The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and
a resident of the subdivision has been named the president
I, (��Jvv a Notary Public for the State of �dk�
County of ZEW,Q, '4� k � do hereby certify that
Personally appeared before me this /eI,— day of 0 o and acknowledge the due
Execution of the foregoing wet detention basin maintenance requirements Witness my hand and official seal
My commission expires
/.2. 09_ OP
Form SWU-102 Version 3 99 Page 4 of 4

State Stormwater Management &,stems
Permit No SW8 910501Modi,cation
Odell Williamson Auditorium Addition & Athletics and Aquatics Center
Stormwater Permit No SW8 910501 Modification
Brunswick County
Designer's Certification
I, J. Phillip Norris , as a duly registered Professional Engineer
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the protect,
Odell Williamson Auditorium Addition & Athletics and Aquatics Center
(Project)
for Brunswick Community College (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 I'c
J./Phillip
Registration N�mber_
Date Februa 5,' 2009
N
SEAL e L/o I SEAL
M
FES I 0 2009
Page 6 of 7

li

State Stormwater Management Systems
Permit No SW8 910501 Modi�ication
Certification Requirements
C_ 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
All the built upon area associated with the protect is graded such that the
runoff drains to the system
All roof drains are located such that the runoff is directed into the system
The outlet/bypass structure elevations are per the approved plan
The outlet structure is located per the approved plans
rash rack is provided on the outlet/bypass structure
are grassed with permanent vegetation
slopes are no steeper than 3 1
The inlets are located per the approved plans and do not cause short-
circuiting of the system
he permitted amounts of surface area and/or volume have been
provided
Required drawdown devices are correctly sized per the approved plans
All required design depths are provided
1 All required parts of the system are provided, such as a vegetated shelf,
and a�forebbaay
e required system dimensions are provided per the approved plans
cc NCDENR-DWQ Regional Office
Brunswick County Building Inspections
Page 7 of 7