SW8000226_CURRENT PERMIT_20230926

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8
DOC TYPE 2 CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE aUOZ
YYYYMMDD

ROY COOPER
Governor
ELIZABETH S.BISER
Secretary "&`r""•'®
WILLIAM E.TOBY VINSON,jR NORTH CAROLINA
interim Director Environmental Quality
September 261, 2023
Louise Wells Cameron Art Museum
Attn: Heather Wilson, Executive Director
3201 South 17th Street
Wilmington,NC 28412
Subject: Permit Renewal
Post-Construction Stormwater Management Permit No. SW8000226
Louise Wells Cameron Art Museum
New Hanover County
Dear Ms. Wilson:
The Division of Energy, Mineral and Land Resources received a complete 8-year Permit Renewal Application for
the subject permit on September 18", 2023. The Division is hereby notifying you that permit SW8000226 has
been renewed, updated, and re-issued on September 26th,as attached. Please be aware that the renewal and re-
issuance of this stormwater permit does not imply that the site is currently in compliance.
This permit shall be effective until March 17'",2032,and does not supersede any other agency permit that may
be required. The project shall be subject to the conditions and limitations as specified therein. This permit does
not impose new or increased stormwater control requirements; it clarifies the rules and requirements of this
program to provide you with a better understanding of your obligations under this permit. Failure to comply with
these requirements will result in future compliance problems. Please note that this permit is not transferable
except after notice to and approval by the Division.
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.
If you have any questions concerning this permit, please contact Logan Inman in the Wilmington Regional Office,
at(910) 796-7215 or [e-mail]
Sincerely,
r1 �/wo
X William E. Toby Vinson,Jr.,PE, CPM, Interim Director
Division of Energy, Mineral and Land Resources
Enclosures: Attachment C—Permitting History -
copy of the Renewal Application Documents
DES/Iwi: \\\Stormwater\Permits&Projects\2000\000226 HD\2023 09 permit 000226
cc: Engineering Department,City of Wilmington
Wilmington Regional Office Stormwater File
If ®0&Aft North Carolina Department of Environmental Quality I Division of Energy,Mineral and Land Resources
r Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington,North Carolina 2a,105
910.796.7215

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
POST-CONSTRUCTION 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
Heather Wilson, Executive Director
Louise Wells Cameron Art Museum
3201 S. 17'" St., Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and as
outlined in the application, approved stormwater management plans, supplement, calculations,
operation and maintenance agreement, recorded documents, specifications, and other
supporting data (the "approved plans and specifications") as attached and/or on file with and
approved by the Division of Energy, Mineral and Land Resources (the "Division" or"DEMLR").
The project shall be constructed, operated, and maintained in accordance with these approved
plans and specifications. The approved plans and specifications are incorporated by reference
and are enforceable part of this permit.
This permit shall be effective from the date of issuance March 1711, 2032, and shall be subject to
the following specified conditions and limitations. 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 condition. 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 21-1.1000 and NCGS 143-215.1 et.al.
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 3 of this permit. The stormwater control has been
designed to handle the runoff from 188,912 square feet of impervious area.
Page 1 of 6

3. A vegetated filter is not required for the wet detention pond as it has been designed for a
90% TSS removal efficiency.
4. The tract will be limited to the amount of built-upon area indicated in Section 1.7 on page
3 of this permit, and per approved plans. The built-upon area for the future development
is limited to 11,040 square feet.
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.
7. The following design criteria have been provided in the wet detention pond and must be
maintained at design condition:
a. Drainage Area, acres: 9.82
Onsite, ftz: 378,358
Offsite, ftz: 49,554
b. Total Impervious Surfaces, ft2: 188,912
Buildings, ft2: 37,511
Streets, ftz: 23,240
Parking, ft2: 63,595
Sidewalks, ft2: 17,352
Other (Paths and Patio), ft2: 4,631
Future, ftz: 11,040
Offsite, ftz: 31,543
C. Design Storm, inches: 1.0 & 1.5 (new)
d. Pond Design Depth, feet: 5.0
e. Average Pond Depth, feet: n/a
f. TSS removal efficiency: 90%
g. Permanent Pool Elevation, FMSL: 38.00
h. Permanent Pool Surface Area, ft2: 15,000
1. Permitted Storage Volume, ft3: 19,100
j. Temporary Storage Elevation, FMSL: 39.10
k. Controlling Orifice: 2.00"0 pipe
I. Permitted Forebay Volume, ft3: 7,400
M. Fountain Horsepower, HP 1/8
n. Receiving Stream/River Basin: Barnards Creek / Cape Fear
o. Stream Index Number: 18-80
p. Classification of Water Body: "C, Sw"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built-upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
Page 2 of 6

3. 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.
5. 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 1/8 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.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has
been installed in accordance with this permit, the approved plans and specifications, and
other supporting documentation. Any deviations from the approved plans and
specifications must be noted on the Certification. A modification may be required for
those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be restored to
design condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
9. Access to the stormwater facilities 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.
Page 3 of 6

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 project 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
project 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.
III. GENERAL CONDITIONS
1. CORRECTIVE ACTIONS REQUIRED. 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.
2. PERMIT RENEWAL. 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).
3. CHANGES TO THE PROJECT NAME, PERMITTEE NAME OR CONTACT
INFORMATION. The permittee shall submit a completed Permit Information Update
Application Form to the Division within 30 days to making any one of these changes.
4. TRANSFER. This permit is not transferable to any person or entity except after notice to
and approval by the Director. Neither the sale of the project and/or property, in whole or
in part, nor the conveyance of common area to a third party constitutes an approved
transfer of the permit.
a. TRANSFER REQUEST. The transfer request must include the appropriate
application, documentation and the processing fee as outlined in 15A NCAC
02H.1045(2). This request must be submitted within 90 days of the permit holder
meeting one or more of the following:
i. A natural person who is deceased,
ii. A partnership, limited liability corporation, corporation, or any other business
association that has been dissolved;
iii. A person or entity who has been lawfully and finally divested of title to the
property on which the permitted activity is occurring or will occur through
foreclosure, bankruptcy, or other legal proceeding.
Page 4 of 6

iv. A person or entity who has sold the property, in whole or in part, on which the
permitted activity is occurring or will occur.
V. The assignment of declarant rights to another individual or entity,
vi. The sale or conveyance of the common areas to a Homeowner's or Property
Owner's Association, subject to the requirements of NCGS 143-214.7(c2);
b. TRANSFER INSPECTION. 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 project and the on-site stormwater system complies with
the permit conditions. Records of maintenance activities performed to date may be
requested. Projects not in compliance with the permit will not be transferred until all
permit and/or general statute conditions are met.
5. COMPLIANCE. The permittee is responsible for compliance with the terms and
conditions of this permit until the Division approves the transfer request.
a. APPROVED PLANS AND SPECIFICATIONS. A copy of this permit, approved
plans, application, supplement, operation and maintenance agreement, all
applicable recorded documents, and specifications shall be maintained on file by
the permittee at all times.
b. DIVISION ACCESS. The permittee grants Division Staff permission to enter the
property during normal business hours to inspect all components of the permitted
project.
c. ENFORCEMENT. 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.
d. ANNUAL CERTIFICATION. The permittee shall electronically submit to the
Division an annual certification completed by either the permittee or their
designee confirming the projects conformance with permit conditions
e. OBTAINING COMPLIANCE. 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 modified plans and
certification in writing to the Director that the changes have been made.
f. OTHER PERMITS. 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.
Page 5 of 6

Permit renewed, updated and reissued this the 26th day of September 2023.
NORTH CAROLI�NA_ENVIROnNNMENTAL MANAGEMENT COMMISSION
A
William E. Toby Vinson, Jr., PE, CPM, Interim Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 6 of 6

Attachment C-Permitting History
Louise Wells Cameron Art Museum
Permit No.SW8 000226
Approval BIMS
Date Permit Action Version Description ofthe Changes Modified Plan Sheets
Original High Density Sto rnwater Project-construction,operation and maintenance of a wet detention pond in
3/17/2000 Approval L0 compliance with the provisions of 15A NCAC 2H.1000,The storrnwater control has been designed to C-1-3
handle the runoff from 180,900 square feet of impervious area.
High Density Commercial Project-construction,operation and maintenance of a wet detention pond in
9/21/2009 Renewal 2.0 compliance with the provisions of I SA NCAC 214 1000.The storrnwater control has been designed to
handle the mnoff from 180,900 square feet ofimpervious area.
High Density Commercial Project-construction,operation and maintenance of a wet detention pond in
compliance with the provisions of 15A NCAC 2H 1000.management of stormwater runoff as described
in Section 1.7 on page 3 ofthis permit.The stonnwater control has been designed to handle the runoff
from 188,912 square feet of impervious area.A vegetated filter is not required for the wet detention pond
as it has been designed for a 90%TSS removal efficiency.The tract will be limited to the amount of built
upon area indicated in Section 17 on page 3 ofthis permit,and per approved plans.The built-upon area
Cot the future development is limited to 11,040 square feet. Thefollowing modifications are included
and covered by this permit:The drainage area and impervious area have been adjusted for the wet
detention pond due to the Multi-Use Path project and The Forks at Gallery Park project. It hus been
Major shown that the wetpond can handle the additional drainage area and impervious area without any
Modification
I0/14/2015 .1 physical changes. The built-upon area(BUA)has been reallocated accordingly. During the time I of])
between approval afthe permit and now,a low density project called 17rh Street/Museum Drive
MWN-Use Path was permitted(SNB 080904)for the Cily of Wilmington. The Multi-Use Path project
removed the sidewalk along the south side of Museum Drive,which drained to the wet pond,and
replaced it with the multi-use path. Also,a high density project called The Forks at Gallery Park was
permitted(SB'8 140417),which removed a portion of the m rld-ase path and replaced it with
sidewalk along Museum Drive and added a street connection(Leader Circle)with Museum Drive.
The project also added Lot 37(4,650 sf BUA)at the southern corner of Museum Drive&Charles
Paine Drive and added Lot 36(1,000 sfBUA)at the northern corner ofthis intersection. Norethat
the remainder olrBUA on Lot 36(3,650 sy),along with the northern portion of Museum Drive,will
drain to Independence Regional Pond(SR'8 951208).
9/26/2023 Renewal 1 3.0 lExpires.3/17/2032
Page 1 of 1

r
Footnotes:
l When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
-'c-s a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
Gc r b. The forebay volume is approximately equal to 20% of the basin volume.
GC4 c. The temporary pool controls runoff from the design storm event.
G(--1 d. The temporary pool draws down in 2 to 5 days.
ccs N/A e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive flow
calculations)
r f. The basin length to width ratio is greater than 3:1.
c r g. The basin side slopes above the permanent pool are no steeper than 3:1.
<<J h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
Gar i. Vegetative cover above the permanent pool elevation is specified.
cc.-r j. A trash rack or similar device is provided for both the overflow and orifice.
N/A k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
GN 1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
e-r in. A mechanism is specified which will drain 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) 0 does Q does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does 9 does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Y
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth rbads 1.7 s feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.25 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 38_n
Sediment Re oval El. 35.75 34.25
75 0
-------------- -
Sediment Removal Elevation -75%--
Bottom Ele ano "" ""
n 35 % '------ '----'- ---------------
Bottom Elevation 33.0 251%
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical. A pump may
be used to drain the basin.
Form SWU-102 Rev 3.99 Page 3 of 4

t .
7. 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 prior to any
changes to the system or responsible party.
Print name: Rebecca S. Laymon
Title: President Ronrd of Dirarrors, St. Tohn's Mnceum of Art, Tnr
Address: 114 Orange Street Wilmington, NC ' 28401
Phone: (910) 763-0281
Signature: Z6-jte--C-L-./. rk
Date: a -15-oO
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, j e.r i 0.. `M, W•e r jet y, a Notary Public for the State of -A o eir k Q a ro I.Hg,
County of `AQ.W AoLKDU,ey' do hereby certify that-e.beCe.0., S • 1-m4kr ot,
personally appeared before'me this hL day of :k-b ru.a r ;XW0 , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
�A
SEAL _
My commission expires L 1 -d-�V
Form SWU-102 Rev 3.99 Page 4 of 4

Date Receiv d Fee Paid Permit Number
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
prior 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. State Stormwater Permit Number: SW8 000226
2. Project name: Louise Wells Cameron Art Museum
3. Project street address: 3201 S. 17rh St.
City: Wilmington County: New Hanover
ZIP : 28412-6554
4. What, if any, changes have been made to the project as permitted? N/A
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at. hhtt s://deg.nc.gov/about/divisionslenergv-
mineral-land-resources/energy-minera I-land-rules/stormwater-program/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https:/Ideg.nc.gov/about/divisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-programlpost-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: Louise Wells Cameron Art Museum
2. Signing Official's Name: Heather Wilson �/
rSCEP
EI E
3. Signing Official's Title: Executive Director 1 1 2v023
4. Mailing Address: 3201 S. 1711 Street
City: Wilmington State: NC ZIP :
28412
5. Street Address: 3201 S. 17u' Street
City: Wilmington State: NC ZIP
28412
6. Phone: [phone] Email: hwilson(rDcameronartmuseum.org
E:CE9VE . .
SEP 18 2023
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 HQ W/ORIM. Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
HW 1. A permit application processing fee of$505.00 payable to NCDEQ.
HW 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. 570 "North Carolina Limited Liability Company Act;"
c. Public Entity—a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited 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
signature of another entity.
HW 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,
condominium/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.
HW 4. O&M 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 O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
HW 5. Designer Certifications, Please select one:
® 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.
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 with 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).
https://w.vw.sosnc.gov/online services/search/by title/ Business Registration
ECEIVE ;
SEP 18 2023
BY:
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTE(E'�S_ CERTIFICATION
I,�.Q 6 V 1-e_c V V 1'6" , 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 O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built-upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All information pr Ided on this permit renewal application is, to the best of my
knowledge, correct and coropiele.
Signature: Date: -4— I a 3
NOTARIZATION:
I, —S a Notary Public for the State of
County of Q— , do hereby certify
that personally appeared before me
this the day of 3 20X_ , and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Sea!)
Notary Signat V� Iris Taylor
1� NOTARY PUBLIC
My commission expires New Hanover County,NC
My Commission Expires October 18,2025
EI G ERVE
SEP 18 2023
BY:�_
Stormwaler Permit Renewal Application Form Page 3 of 3 May 11, 2018

t Permit No.
�W fDpD��
(to be pmvidetl by DWD)
� WA7�9O
b'y �O Gy
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 printed,filled out and submitted along with all of the required information,
1:''PROJECT.INFORMATION
Project name - Louise Wells Camero
n an An Museum
Contact person E wqr CoyneJ=
Phone number qI0-395-"51 q
Date 12-q- 14
Drainage area number 1'
II. DESIGN'.INFORMATION'.
Site Characteristics
Drainage area 427,912 ryx
Impervious area,post-development 188,912 ft2
%impervious 44.15 %
Design rainfall depth 1&1.5 in
Storage Volume: Non-SA Waters
Minimum volume required 16,295 ft3
Volume provided 19,100 ft3
Of,volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1.5"runoff volume ft3
Pre-development 1-yr,24-hr runoff ft3
Post-development 1-yr,24-hr mnoff It
Minimum volume required 113
Volume provided ft3 \ C ri,.'/�
Peak Flow Calculations �N��
a ���
Is the pre/post control of the 1yr 24hr storm peak flow required? N (Y or N) �� . �8 0•'�"' y"r
a .,Cal 2-914
1-yr,24-hr rainfall depth in •n SEAL ==
Rational C,pre-development (unitless) = Q�nq
Rational C,post-development (unitless) CC55��
Rainfall intensity:1-yr,24-hr storm inmr ��� `�(��+ • e' `Z
Pre-development 1-yr,24-hr peak flow NIA ft Isec �� ..• ��
Post-development 1-yr,24-hr peak flow NIA ft3/sec 0j��,r(f CS Ie,`"N
Pre/Post 1-yr,24-hr peak flow control #VALUE! ft/sec
Elevations
Temporary pool elevation 39.10 fmsl
Permanent pool elevation 38.00 fmsl
SHWT elevation(approx.at the perm.pool elevation) fmsl
Top of 10ft vegetated shelf elevation 38.00 fmsl
Bottom of 10ft vegetated shelf elevation 36.33 fmsl
Sediment cleanout,top elevation(bottom of pond) 33,00 fmsl
Sediment cleanout,bottom elevation N/A fmsl
Sediment storage provided #VALUE! It
Is there additional volume stored above the state-required temp.pool? N (Y or N) ifbEIVE
Elevation of the top of the additional volume fmsl V L 1111 ^ Or1111
BY; J L L IJ
Forth SW401-Wet Detention Basin-Rev 8-4118112 Parts I.&11.Design Summary,Page 1 of 2

Permit No.
(to be provided by DWQ)
II. DESIGN:INFORMATION ra, r ', ,�: . a . +; ...: r.......c '• .....'
Surface Areas
Area,temporary pool As Permitted ft
Area REQUIRED,pemnanent pool 13,225 ft'
SAIDA ratio 3.09(unitless)
Area PROVIDED,permanent pool,A,,,,," 15,000 ft, OK
Area,bottom of 1 Oft vegetated shelf,A,y,,,al NIA lt`
Area,sediment cleanout,top elevation(bottom of pond),A.., NIA il`
Volumes
Volume,temporary pool 19,100 to OK
Volume,permanent pool,V,,,,„a As Permitted ft'
Volume,forebay(sum of forebays if more than one forebay) As Permitted ft'
Forebay%of permanent pool volume #VALUE! % #VALUE!
SAIDA Table Data
Design TSS removal 90 %
Coastal SAIDA Table Used? Y (Y or N)
MountainuPiedmont SAIDA Table Used? N (Y or N)
SAIDA ratio 3.09 (unitless)
Average depth(used in SAIDA table):
Calculation option 1 used?(See Figure 10-2b) NIA (Y or N)
Volume,permanent pool,V.„d As Permitted ft'
Area provided,permanent pool,A,_„a 15,000 ft`
Average depth calculated ft Need 3 ft min.
Average depth used in SA/DA,d„,(Round to nearest 0.51 ft
Calculation option 2 used?(See Figure 10-2b) NIA (Y or N)
Area provided,permanent pool,Ar,,,,,o„I 15,000 ft`
Area,bottom of 10ft vegetated shelf,A,-. NIA It,
Area,sediment cleanout,top elevation(bottom of pond),A.., NIA ft2
"Depth"(distance b/w bottom of 10ft shelf and top of sediment) 3.33 It
Average depth calculated NIA ft OK
Average depth used in SAIDA,d.,(Round to down to nearest 0.51t) 5,0 ft #VALUEI
Drawdown Calculations
Drawdown through orifice? Y (Y or N)
Diameter of orifice(if circular) 2.00 in
Area of orifice(if-mart-circular) inc
Coefficient of discharge(Co) 0.60(unitless)
Driving head(H,) 0.34 ft
Drawdown through weir? N (Y or N)
Weir type (unitless)
Coefficient of discharge C.) (unitless)
Length of weir(L) it
Driving head(H) It
Pre-development 1-yr,24-hr peak flow NIA ff'Isec
Post-development 1-yr,24-hr peak flow NIA tt'Isec
Storage volume discharge rate(through discharge orifice or weir) 0.06 tt'Isec
Storage volume drawdown time 3.10 days OK,draws down in 2-5 days.
Additional Information
Vegetated side slopes 3 :1 OK
Vegetated shelf slope 6 :1 Insufficient shelf slope.
Vegetated shelf width 10.0 It OK C..C r\/�
Length of towpath to width ratio As Permitted :1 OK L Y
Length to width ratio As Permitted :1 OK JUL O ��
Trash rack for overflow&orifice? Y Y or N) OK
Freeboard provided >1 If OK
Vegetated filter provided? N (Y or N) OK BY:
Recorded drainage easement provided? NIA (Y or N) OK
Capures all runoff at ultimate build-out? As Permitted (Y or N) OK
Drain mechanism for maintenance or emergencies is: Pump
Form SW401-Wet Detention Basin.Rev.9-4I18112 Pans I.&II.Design Summary,Page 2 of 2

Permit No.
(to be provided by DWQ)
IIh REQUIRED.ITEMS CHECKLIST , r
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.
Page/Plan
Initials Sh et NoI.
j Ad�en0.uM 1. Plans(1"-50'or larger)of the entire site showing:
S U`t) -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.
AdA 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 strip.
NIA 3. Section view of the wet detention basin(1"=20'or larger)showing:
-Side slopes,3:1 or lower,
-Pretreatment and treatment areas,and
�� -Inlet and outlet structures.
NIA 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.
IVIA 5. A table of elevations,areas,incremental volumes&accumulated volumes for overall pond and for Forebay,
to verify volume provided.
91A 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
9-e f"-44 entire drainage area is stabilized.
7. The supporting calculations.
A /tl 8. A copy of the signed and notarized operation and maintenance(0&M)agreement.
see p
od
JLB cloud Rs#c: Arm
g A copy of the deed restrictions(if required).
NA 10. A soils report that is based upon an actual field investigation,soil borings,and infiltration tests. County
soil maps are not an acceptable source of soils information. C^E I` E
JUL 2 0 2015
By:
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Part III.Required Items Checklist,Page 1 of 1

LOUISE WELLS CAMERON ART MUSEUM
Johnnie McKoy
Building and Grounds Manager
3201 SOUTH 17th STREET • WILMINGTON, NC 28412
910.395.5999 ext. 1021 • cell: 910.620.5134
fax: [phone] [e-mail]
I
e
0

AaK # 98192
September 27, 2005
Louise Wells Cameron Museum of Art
Stormwater Permit No. SW8 000226
Louise Wells Cameron Art Museum Page 1 of 2
New Hanover County
Stormwater Project No. SW8 000226
Designer's Certification
I, C. Lawrence Sneeden, Jr. , P.bs a duly registered Prafessional E1lgineer in
the State of North Carolina, having been authorized to observe (periodically / WOONY/
fuft=) the construction of the project,
Lcuise wells Cameron Art Museum
(Project)
for Margoh' �>3irec o sot Art, Inc. (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.
Required Items to be checked for this certification to be considered complete are on
page 2 of this form.
CA
' BBoaaoa000�,e
Noted deviations from approved plans and specifications: °°°°°®p�ZH 0000
�. peuor vEEo r '°
TQ of n.GCUM JC4 -Y6�1
SEb iticEN> m a
3 �ORc�6AY �� /i0 E'CREccK STK VG>Eyj e a
10912 s
Z �vAr�k rinr jtac1<CV UPK F4K 6FF sE J.-s'. d I �l/� /�/ C �
A/07 AC-C.C\V/NS 'pONO -'ru rVC.tY 6O6°9vn oo"CI�`�o��C�°��e
pRAI N ° F o Q a°
by®tl00000000®BB0
//
Signature (�� - ,�t/l SEAL
Registration Number Aic /097z
Date /eA71af
CLS/asn
98192 10-26-05-s-sw-cert.
Paae 3 of 4

September 27, 2005
Louise Wells Cameron Museum of Art
Stormwater Permit No. SW8 000226
Certification Requirements: Page 2 of 2
cc.`1. The drainage area to the system contains approximately the permitted
acreage.
cc r 2. The drainage area to the system contains no more than the permitted
amount of built-upon area.
ccr 3.'r All the built-upon area associated with the project is graded such that the
runoff drains to the system.
cc_r 4'' The outlet/bypass structure elevations are per the approved plan.
cam, 5. The outlet structure is located per the approved plans.
Lr 6. Trash rack is provided on the outlet/bypass structure.
�u 7. All slopes are grassed with permanent vegetation.
cam/ 8i` Vegetated slopes are no steeper than 3:1.
cei 9�+ The inlets are located per the approved plans and do not cause short-
circuiting of the system.
cLJ 10.* The permitted amounts of surface area and/or volume have been
provided.
ccr 11. Required drawdown devices are correctly sized per the approved plans.
car 12 All required design depths are provided.
c �r 13. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
«r 14.+ The dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ
Tony Roberts, New Hanover County Building Inspections
(3ASC-n ow virvaL- 6f06'RvArtdw// SuRv_y
k k T-�ORE73AY PIWA76�t 14660f -TO 17 REca^s tT2 ucY�p "�C�t PC9Nr
�*-k �a SdRv�Y ,IwForc,.�-rio✓ Avr3�cia-r�z� .

High Density Aesidential Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Article 14,Division III of the City of Wilmington Land Development Code,deed restrictions and
protective covenants are required for High Density Residential Subdivisions where lots will be subdivided and sold and
runoff will be treated in an engineered stormwater control facility.Deed restrictions and protective covenants are necessary
to ensure that the development maintains a"built-upon"area consistent with the design criteria used to size the stormwater
control facility.
I, Adair M. acknowledge,affirm and agree by my signature below,that I will cause the
following deed restrictions and covenants to be recorded prior to the sale of any lot:
I. The following covenants are intend �ttj�ensure oing compliance with the city of Wilmington Stormwater
Management Permit NumbexSW Me, as issued by the City of Wilmington/Engineering
2. The City of Wilmington is made a beneficiary of these covenants to the extent necessary to maintain compliance
with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming under them.
4. The covenantspertaining to stormwater may not be altered or rescinded without the express written consent of the
City of Wilmington.
5. Alteration of the drainage as shown on the approvedplan may not take place without the concurrence of the City of
Wilmington &1;6+ A
6. The maximum allowable built-upon area per lot is 'ee square feet. This allotted amount includes any
built-upon area constructed within the lot property boundaries, andthatportion ofthe right-of-way between the
front lot line and the edge of the pavement. Built upon area includes, but is not limited to, structures, asphalt,
concrete,gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or
the water surface of swimming pools.
OR,if the proposed built-upon areas per lot will vary,please REPLACE#6 above with the following:
The maximum built-upon area per lot, in square feet, is as listed below:
Lot# BUA Lot# BUA Lot# BUA Lot# BUA
This allotted amount includes any built-upon area constructed within the lot property boundaries, and that portion
of the right-of-wary between the front lot line and the edge of the pavement.Built upon area includes, but is not
limited to, structures, asphalt, concrete,gravel, brick stone, slate, coquina and parking areas, but does not include
raised, open wood decking, or the water surface of swimming pools.
7. All runofffrom the built-upon areas on the lot must drain into the permitted system. This may be accomplished
through a variety of means including roof drain gutters which drain to the street, grading the lot to drain toward
the street, or grading perimeter swales to collect the lot rungf'and directing them into a component of the
stormwater collection system Lots that will naturally drain into the system are not required to provide these
atdalmasures.SignatureDate:a Notary Public in the State of /✓f7 • )imo—
County o do hereby certify that GZWI
personally appeared before me this the day o 20LL and acknowledge the
due execution of the foregoing instrument.Witness my hand and offici
SEAL10 ECEIVE
� CO t4OTARY ti JUL 2 0 2015
Signatur PUBLIC 2 BY:
My Commission expires A S3D —J � l
C00"
y�FR

Exhibit A
The Forks
Maximum Built Upon Area
Lot# Max BUA in soft. (per loll
1-2, 4-35, 88-95, 97-106 3,648
3, 40-51, 70, 75, 80, 85, 107, 111-116 3,725
36-39, 52-69, 71-74, 76-79, 81-84, 86-87,
96, 108-110, 117-124 4,650