SW8201006_Current Permit_20210304

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ROY COOPER .-e .
Governor .4
MICHAEL MICHAEL S.REGAN .
Secretary ° a _
BRIAN WRENN NORTH CAROLINA
Director Environmental Quality
March 4,2021
Seamist Properties,LLC
Attn:McKinley D.Dull,Manager
3807 Peachtree Avenue, Suite 200
Wilmington,NC 28403
Subject: State Stormwater Management Permit No.SW8 201006
Wilmington Trade Center
High Density Project
New Hanover County
Dear Mr.Dull:
The Wilmington Regional Office received a complete State Stormwater Management Permit Application for the
subject project on October 13,2020 with final additional information received on January 27,2021. Staff review
of the plans and specifications has determined that the project,as proposed,complies with the Stormwater
Regulations set forth in Title 15A NCAC 02H.1000 amended on January 1,2017(2017 Rules). We are hereby
forwarding Permit No. SW8 201006,dated March 4,2021,for the construction of the built-upon areas(BUA)and
stormwater control measures(SCMs) associated with the subject project.
This permit shall be effective from the date of issuance until March 4,2029 and the project shall be subject to the
conditions and limitations as specified therein and does not supersede any other agency permit that may be
required. 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.
This cover letter,attachments,and all documents on file with DEMLR shall be considered part of this permit and
is herein incorporated by reference.
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 Steve Pusey in the Wilmington Regional Office,
at(910)796-7215 or [e-mail].
Sincerely,
X Brian Wrenn,Director
Division of Energy,Mineral and Land Resources
Enclosures: Attachment A—Designer's Certification Form
Application Documents
DES/sgp: \\\Stormwater\Permits&Projects\2020\201006 HD\2021 02 permit 201006
cc: Jason Clark,PE—Norris&Tunstall Consulting Engineers,PC
New Hanover County Building Safety Department
New Hanover County Engineering Department
NCDOT District Engineer
Wilmington Regional Office Stormwater File
North Carolina Department of Environmental Quality I Division of Energy.Mineral and Land Resources
Z-U73
) Wilmington Regional Office 1127 Cardinal Drive Extension I Wilmington,North Carolina 28405
°eiwi°a�"a"' 910.796.7215

State Stormwater Management
Permit No. SW8 201006
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In compliance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations promulgated and adopted by the North
Carolina Environmental Management Commission, including 15A NCAC 02H.1000 amended on
January 1, 2017 (2017 Rules) (the "stormwater rules"),
PERMISSION IS HEREBY GRANTED TO
Seamist Properties, LLC
Wilmington Trade Center
4104 US Hwy 421 North, Wilmington, New Hanover County
FOR THE
construction, management, operation and maintenance of built-upon area (BUA) draining to one (1)
infiltration trench and one (1) infiltration basin ("stormwater control measures" or"SCMs") 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 until March 4, 2029 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 2H.1000 and NCGS 143-215.1 et.al.
1. BUA REQUIREMENTS. The maximum amount of BUA allowed for the entire project is 978,591
square feet. The runoff from all BUA within the permitted drainage areas of this project must be
directed into the permitted SCMs. The BUA requirements and allocations for this project are as
follows:
a. SCM BUA LIMITS. The SCMs labeled DA1 (infiltration basin) and DA2 (infiltration trench)
have been designed using the runoff treatment method to handle the runoff from 839,423
square feet and 139,168 square feet of BUA, respectively, within the delineated drainage
areas. This permit does not provide any allocation of BUA for future development within the
delineated drainage area(s).
2. PERVIOUS AREA IMPROVEMENTS. At this time, none of the pervious area improvements
listed in G.S. 143-214.7(b2) or the Stormwater Design Manual have been proposed for this
project. Pervious area improvements will be allowed in this project if documentation is provided
demonstrating those improvements meet the requirements of the stormwater rule.
Page 1 of 5

State Stormwater Management
Permit No. SW8 201006
3. SCM REQUIREMENTS. The SCM requirements for this project are as follows:
a. SCM DESIGN. The SCMs are permitted based on the design criteria presented in the
sealed, signed and dated supplement and as shown in the approved plans and
specifications. These SCMs must be provided and maintained at the design condition.
b. PRETREATMENT. The following pretreatment device(s) has (have) been provided to
prevent clogging in the infiltraion SOMs: sumps in catch basins, filter strips, grassed swales,
forebays for pretreatment.
4. STORMWATER OUTLETS. This project has demonstrated that the on-site stormwater system
will not discharge from the 10-year storm event and therefore will not have the opportunity to
cause erosion during the 10-year storm event.
5. VEGETATED SETBACKS. A 50-foot wide vegetative setback must be provided and maintained
in grass or other vegetation adjacent to all surface waters as shown on the approved plans. The
setback is measured horizontally from the normal pool elevation of impounded structures, from
the top of bank of each side of streams or rivers, and from the mean high waterline of tidal
waters, perpendicular to the shoreline.
a. BUA IN THE VEGETATED SETBACK. BUA may not be added to the vegetated setback
except as shown on the approved plans.
b. RELEASE OF STORMWATER NOT TREATED IN AN SCM. Stormwater that is not treated
in an SCM must be released at the edge of the vegetated setback and allowed to flow
through the setback as dispersed flow.
6. RECORDED DOCUMENT REQUIREMENTS. The stormwater rules require the following
documents to be recorded with the Office of the Register of Deeds:
a. ACCESS AND/OR EASEMENTS. The entire stormwater conveyance system, including any
SCMs, and maintenance accesses must be located in public rights-of-way, dedicated
common areas that extend to the nearest public right-of-way, and/or permanent recorded
easements that extend to the nearest public right-of-way for the purpose of inspection,
operation, maintenance, and repair.
b. OPERATION AND MAINTENANCE AGREEMENT. The operation and maintenance
agreement must be recorded with the Office of the Register of Deeds.
c. FINAL PLATS. The final recorded plats_must reference the operation and maintenance
agreement and must also show all public rights-of-way, dedicated common areas, and/or
permanent drainage easements, in accordance with the approved plans.
7. CONSTRUCTION. During construction, erosion shall be kept to a minimum and any eroded
areas of the on-site stormwater system will be repaired immediately.
a. UNDERGROUND SCMs. It is recommended that during the installation of the underground
SCM, photos be taken documenting the construction and demonstrating that the constructed
SCM meets the approved design. It is further recommended that these photos be submitted
with the required Designer's Certification.
b. PROJECT CONSTRUCTION, OPERATION AND MAINTENANCE. During construction, all
operation and maintenance for the project shall follow the Erosion Control Plan requirements
until the Sediment-Erosion Control devices are converted to SCMs or no longer needed.
Once the device is converted to a SCM, the permittee shall provide and perform the
operation and maintenance as outlined in the applicable section below.
c. SCM RESTORATION. If one or more of the SCMs are used as an Erosion Control device
and/or removed or destroyed during construction, it must be restored to the approved state
stormwater design condition prior to close-out of the erosion control plan and/or project
completion and/or transfer of the state stormwater permit. Upon restoration, a new or
updated certification will be required for the SCM(s) and a copy must be submitted to the
appropriate DEQ regional office.
Page 2 of 5

State Stormwater Management
Permit No. SWB 201006
8. MODIFICATIONS. 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), 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.
9. DESIGNER'S CERTIFICATION. Upon completion of the project, the permittee shall determine if
the project is in compliance with the approved plans and take the necessary following actions:
a. If the permittee determines that the project is in compliance with the approved plans, then
within 45 days of completion, the permittee shall submit to the Division one hard copy and
one electronic copy of the following:
i. The completed and signed Designer's Certification provided in Attachment A
noting any deviations from the approved plans and specifications. Deviations
may require approval from the Division;
ii. A copy of the recorded operation and maintenance agreement;
iii. Unless already provided, a copy of the recorded deed restrictions and
protective covenants; and
iv. A copy of the recorded plat delineating the public rights-of-way, dedicated
common areas and/or permanent recorded easements, when applicable.
b. If the permittee determines that the project is not in compliance with the approved plans, the
permittee shall submit an application to modify the permit within 30 days of completion of the
project or provide a plan of action, with a timeline, to bring the site into compliance.
10. OPERATION AND MAINTENANCE. The permittee shall provide and perform the operation arid
maintenance necessary, as listed in the signed operation and maintenance agreement, to
assure that all components of the permitted on-site stormwater system are maintained at the
approved design condition. The approved operation and maintenance agreement must be
followed in its entirety and maintenance must occur at the scheduled intervals.
a. CORRECTIVE ACTIONS REQUIRED. If the facilities fail to perform satisfactorily, the
permittee shall take immediate corrective actions. This includes actions required by the
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.
b. MAINTENANCE RECORDS. Records of maintenance activities must be kept and made
available upon request to authorized personnel of the Division. The records will indicate the
date, activity, name of person performing the work and what actions were taken.
11 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 15A NCAC 02H.1045(3).
Page 3 of 5

State Stormwater Management
Permit No. SW8 201006
12. CURRENT PERMITTEE NAME OR ADDRESS CHANGES. The permittee shall submit a
completed Permit Information Update Application Form 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.
13. 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) and must be
submitted upon occurrence of any one or more of the following events:
i. The sale or conveyance of the project and/or property area in whole or in part;
ii. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05
or NCGS 57D-6-07 and 08;
iii. Bankruptcy;
iv. Foreclosure, subject to the requirements of Session Law 2013-121;
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.
14. COMPLIANCE. The permittee is responsible for complying with the terms and conditions of this
permit and the approved plans and specifications until the Division approves the transfer
request.
a. REVIEWING AND MONITORING FOR COMPLIANCE. The permittee is responsible for
verifying that the proposed BUA within each drainage area and for the entire project does
not exceed the maximum amount allowed by this permit. The permittee shall review and
routinely monitor the project to ensure continued compliance with the conditions of the
permit, the approved plans and specifications.
b. 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.
c. DIVISION ACCESS. The permittee grants Division Staff permission to enter the property
during normal business hours to inspect all components of the permitted project.
d. 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.
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.
Page 4 of 5

State Stormwater Management
Permit No. SW8 201006
f. OTHER PERMITS. The issuance of this permit does not preclude the permittee from
obtaining and complying with any and all other permits or approvals that are required for this
development to take place, as required by any statutes, rules, regulations, or ordinances,
which are 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.
Permit issued this the 4th day of March 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
OLL0 I`/C
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW8 201006
Page 5 of 5

s
DEMLR USE ONLY
Date Received Fee Paid Permit Number
(a 113 f ao an) I 8-69 $ sod ! Sr,J B. 02 o !'D o a
Applicable Rules: ❑Coastal SW-1995 0 Coastal SW-2008 ❑Ph II-Post Construction
(select all that apply) 0 Non-Coastal SW-HQW/ORW Waters ❑Universal Stormwater Management Plan
0 Other WQ Mgmt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Energy,Mineral and Land Resources I�I
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Project Name(subdivision,facility,or establishment name-should be consistent with project name on plans,
specifications,letters,operation and maintenance agreements,etc.):
Wilmington Trade Center
2. Location of Project(street address):
4104 US Hwy.421 North
City:Wilmington County:NC Zip:28401
3. Directions to project(from nearest major intersection):
5,200'North of the intersection of US 421&I-140. Proceed North on US 421. The site is on the East side of
US 421.
4. Latitude:34°18'07.6"N Longitude:77°58'40.5"W of the main entrance to the project.
II. PERMIT INFORMATION:
1.a.Specify whether project is(check one): //New ['Modification ❑Renewal w/Modificationt
tRenewals with modifications also requires SWU-102-Renewal Application Form
b.If this application is being submitted as the result of a modification to an existing permit,list the existing
permit number ,its issue date(if known) ,and the status of
construction: ONot Started ['Partially Completed* ❑Completed* *provide a designer's certification
2. Specify the type of project(check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ['Other
3. If this application is being submitted as the result of a previously returned application or a letter from
DEMLR requesting a state stormwater management permit application,list the stormwater project number,
if assigned, and the previous name of the project,if different than currently
proposed,
4.a.Additional Project Requirements(check applicable blanks;information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control:29.3 ac of Disturbed Area
❑NPDES Industrial Stormwater 0404/401 Permit:Proposed Impacts
b.If arty of these permits have already been acquired please provide the Project Name,Project/Permit Number,
issue date and the type of each permit:
5. Is the project located within 5 miles of a public airport? ['No
If yes,see S.L.2012-200,Part VI:http://portal.ncdenr.org/web/lr/rules-and-regulati E C
OCTpp
1 3 Z023
BY:
Form SWU-101 Version Oct.31,2013 Page 1 of 6

III. CONTACT INFORMATION
1.a.Print Applicant/Signing Official's name and title(specifically the developer,property owner,lessee,
designated government official,individual,etc.who owns the project):
Applicant/Organization:Seamist Properties,LLC
Signing Official&Title:McKinley D.Dull,Manager
b.Contact information for person listed in item la above:
Street Address:3807 Peachtree Avenue,Suite 200
City:Wilmington State:NC Zip:28403
Mailing Address(if applicable):Same as Above
City: State: Zip:
Phone: (910 ) 395-6036 Fax: ( ) N/A
Email:[e-mail]
c.Please check the appropriate box.The applicant listed above is:
®The property owner(Skip to Contact Information,item 3a)
❑Lessee*(Attach a copy of the lease agreement and complete Contact Information,item 2a and 2b below)
❑Purchaser*(Attach a copy of the pending sales agreement and complete Contact Information,item 2a and
2b below)
❑Developer*(Complete Contact Information,item 2a and 2b below.)
2.a.Print Property Owner's name and title below,if you are the lessee,purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official&Title:
b.Contact information for person listed in item 2a above:
Street Address:
City: State: Zip:
Mailing Address(if applicable):
City: State: Zip:
Phone: ( ) Fax: ( )
Email:
3.a. (Optional)Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/Organization:McKinley Building Corporation
Signing Official&Title:Pete Avery
b.Contact information for person listed in item 3a above:
Mailing Address:3807 Peachtree Avenue,Suite 200
City:Wilmington w. .._ State:NC Zip:28403
Phone: (910 ) 395-6036 Fax: ( ) N/A
Email:[e-mail]
4. Local jurisdiction for building permits:New Hanover County Building Safety
Point of Contact:Nicholas Gadzekpo,Director Phone#: (910 ) 798-745 E C
q7�
st
1 3 2112.3
Form SWU-101 Version Oct.31,2013 Page 2 of 6 BY:

IV. PROJECT INFORMATION NI \a' I
1. In the space provided below,briefly summarize how the stormwater runoff will be treated. C�Q,iy c oi454,01
Wilmington Trade Center(aka I-140 Phase V Development)is treated in Infiltration Basin#1 and an
underground infiltration basin.
2.a.If claiming vested rights,identify the supporting documents provided and the date they were approved:
❑Approval of a Site Specific Development Plan or PUD Approval Date:
❑Valid Building Permit Issued Date:
❑Other: Date:
b.If claiming vested rights,identify the regulation(s)the project has been designed in accordance with:
❑Coastal SW—1995 ❑Ph II—Post Construction
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area:27.899 acres 5. Total Coastal Wetlands Area:0 acres
6. Total Surface Water Area:0 acres
7. Total Property Area(4)—Total Coastal Wetlands Area(5)—Total Surface Water Area(6)=Total Project Area+:
27.899 acres
+ Total project area shall be calculated to exclude the following: the normal pool of impounded structures,the area
between the banks of streams and rivers,the area below the Normal High Water(NHW)line or Mean High Water
(MHW)line,and coastal wetlands landward from the NHW(or MHW)line. The resultant project area is used to
calculate overall percent built upon area(BUA). Non-coastal wetlands landward of the NHW(or MHW)line may
be included in the total project area.
8. Project percent of impervious area:(Total Impervious Area /Total Project Area)X 100 =80 0/0
9. How many drainage areas does the project have?2(For high density,count 1 for each proposed engineered
stormwater BMP. For low density and other projects,use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project,attach an a ; ' sA it,heet th the information for each area
provided in the same format as be �'� L.
Basin Information ainage Area 1 Dra age Area 2 Drainage Area_ Drainage Area_
Receiving Stream Name NE CF River NE CF River
Stream Class * SC;Sw SC;Sw
Stream Index Number* CFP17 18-74-61 CFP17 18-74-61
Total Drainage Area(sf) 992,541 155,107
On-site Drainage Area(sf) 984,280 155,107
Off-site Drainage Area(sf) 8,261 0
Proposed Impervious Area**(sf) 839,423 139,168
%Impervious Area**(total) 84.6% 89.7%
Impervious**Surface Area Drainage Area 1 Drainage Area 2 Drainage Area_ Drainage Area_
On-site Buildings/Lots(sf) 425,250 0
On-site Streets (sf) 0 0
On-site Parking (sf) 264,785 118,045
On-site Sidewalks (sf) 762 14,341( c E C ;
Other on-site csf) \& 145,281 6,782 Future(sf) 0 0 r «
Off-site (sf) 3,345 0
Existing BUA***(sf) 0 0 BY:
Total (sf): 839,423 139,168
* Stream Class and Index Number can be determined at: http://portal.ncdenr.org/web/wq/ps/csu/classifications
** Impervious area is defined as the built upon area including,but not limited to,buildings,roads,parking areas,
sidewalks,gravel areas,etc.
***Report only that amount of existing BUA that will remain after development.Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
Form SWU-101 Version Oct. 31,2013 Page 3 of 6

11: How was the off-site impervious area listed above determined?Provide documentation.N/A
Projects in Union County: Contact DEMLR Central Office staff to check if the project is located within a Threatened&
Endangered Species watershed that may be subject to more stringent stormwater requirements as per 15A NCAC 02B.0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance(O&M)forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from http://portal.ncdenr.org/web/wq/ws/su/bmp-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Energy,Mineral and
Land Resources(DEMLR). A complete package includes all of the items listed below. A detailed application
instruction sheet and BMP checklists are available from
http://portal.ncdenr.org/web/wq/ws/su/statesw/forms docs. The complete application package should be
submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the
interactive online map at http://portal.ncdenr.org/web/wq/ws/su/maps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item.All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms docs.
als
1. Original and one copy of the Stormwater Management Permit Application Form. '�-
2. Original and one copy of the signed and notarized Deed Restrictions&Protective Covenants
Form.(if required as per Part VII below)
3. Original of the applicable Supplement Form(s)(sealed,signed and dated)and O&M I 1
agreement(s)for each BMP. f�
4. Permit application processing fee of$505 payable to NCDENR. (For an Express review,refer to .
http://www.envhelp.org/pages/onestopexpress.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative(one to two pages)describing the stormwater treatment/management
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within'mile of the site boundary,include the1
mile radius on the map. _
7. Sealed,signed and dated calculations(one copy).
8. Two sets of plans folded to 8.5"x 14"(sealed,signed,&dated),including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures,the banks of streams and rivers,the MHW or NHW line of tidal
waters,and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impo d
structures,the banks of streams or rivers,and the MHW(or NHW)of tidal waters .'
i. Dimensioned property/project boundary with bearings&distances. '�'r 1 3 �+^�
j. Site Layout with all BUA identified and dimensioned. �d��
k. Existing contours,proposed contours,spot elevations,finished floor elevations. By.
1. Details of roads,drainage features,collection systems,and stormwater control measures.
m.Wetlands delineated,or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage(including off-site),drainage easements,pipe sizes,runoff calculations.
o. Drainage areas delineated(included in the main set of plans,not as a separate document).
p. Vegetated buffers(where required).
Form SWU-101 Version Oct. 31,2013 Page 4 of 6

9. . Copy of any applicable soils report with the associated SHWT elevations(Please identify
elevations in addition to depths)as well as a map of the boring locations with the existing
elevations and boring logs.Include an 8.5"x11"copy of the NRCS County Soils map with the % • \
project area clearly delineated. For projects with infiltration BMPs,the report should also (�Q,
include the soil type,expected infiltration rate,and the method of determiningthe infiltration rate.
xP
(Infiltration Devices submitted to WiRO:Schedule a site visit for DEMLR to verify the SHWT prior
to submittal, [phone].) II
10. A copy of the most current property deed.Deed book: 5 g ii Page No: `i st' c,3�u,
11. For corporations and limited liability corporations(LLC):Provide documentation from the NC
Secretary of State or other official documentation,which supports the titles and positions held
by the persons listed in Contact Information,item la,2a,and/or 3a per 15A NCAC 2H.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State,otherwise the application will be returned.
http:/iwww.secretary.state.nc.us/Corporations/CSearch.aspx
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions,outparcels,and future development,the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary,a table listing each lot number,lot size,and the allowable built-upon area must be
provided as an attachment to the completed and notarized deed restriction form. The appropriate deed
restrictions and protective covenants forms can be downloaded from http://portal.ncdenr.org/web/lr/state-
stormwater-forms docs.Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner,it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s)below,the permit holder(s)certify that the recorded property restrictions and
protective covenants for this project,if required,shall include all the items required in the permit and listed
on the forms available on the website,that the covenants will be binding on all parties and persons claiming
under them,that they will run with the land,that the required covenants cannot be changed or deleted
without concurrence from the NC DEMLR,and that they will be recorded prior to the sale of any lot.
VIII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm(such as a
consulting engineer and/or firm)so that they may provide information on your behalf for this project(such as
addressing requests for additional information).
Consulting Engineer:John S.Tunstall,P.E.or T.Jason Clark,P.E.
Consulting Firm:Norris&Tunstall Consulting Engineers,P.C.
Mailing Address:2602 Iron Gate Drive,Suite 102
City:Wilmington State:NC Zip:28412
Phone: (910 ) 343-9653 Fax: (910 ) 343-9604
Email:[e-mail] or [e-mail] &[e-mail]
IX. PROPERTY OWNER AUTHORIZATION(if Contact Information,item 2 has been filled out,complete this
section)
I,(print or type name of person listed in Contact Information,item 2a) ,certify that I
own the property identified in this permit application,and thus give permission to(print or type name of person
listed in Contact Information,item la) with(print or type name of organization listed in
Contact Information,item la) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal,which indicates the
party responsible for the operation and maintenance of the stormwater system.
11 flEcEv.
OC r 13 2023 '
Form SWU-101 Version Oct.31,2013 Page 5 of 6 By.

As the legal property owner I acknowledge,understand,and agree by my signature below,that if my designated
agent(entity listed in Contact Information,item 1)dissolves their company and/or cancels or defaults on their
lease agreement,or pending sale,responsibility for compliance with the DEMLR Stormwater permit reverts back
to me,the property owner.As the property owner,it is my responsibility to notify DEMLR immediately and
submit a completed Name/Ownership Change Form within 30 days;otherwise I will be operating a stormwater
treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility
without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement
action including the assessment of civil penalties of up to$25,000 per day,pursuant to NCGS 143-215.6.
Signature: Date:
I, ,a Notary Public for the State of County of
,do hereby certify that personally appeared
before me this_day of ,and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission expires
X. APPLICANT'S CERTIFICATION
I,(print or type name of person listed in Contact Information,item la)McKinley D.Dull,Manager
certify that the information included on this permit application form is,to the best of my knowledge,correct and
that the project will be constructed in conformance with the approved plans,that the required deed restrictions
and protective covenants will be recorded,and that the proposed project complies with the requirements of the
applicable sto wat es under 15 CAC .1000 and any other applicable state stormwater requirements.
Signature: ql..... Date: j 11'(14 d
I, larN st.l_VCg ! ,a,N�ottary Public for the State ofJO&4'hCfLQi(('ffl..çounty of
J) O1( - 1,do hereby certify that 11d(i IN It.ti b.b(J I personally appeared
before me this 10 day of*Aember a(bo,and cknowled e e e execution of the application for
a stormwater permit. Witness my hand and of . ' Mt,
SEAL
NOTARY
PUBLIC 0 Q,
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BY•
Form SWU-101 Version Oct.31,2013 Page 6 of 6

SUPPLEMENT-EZ COVER PAGE
I - FORMS LOADED tI 1\ 3
PROJECT IINFORMATION - - ---- ' `""__._._ ..,______..--.---._._-_____ _____�
1 Project Name ��,,•�w_".._,...__._.__s:-�.�_���:
_ - zY Wllmingfon Trade Center
2 Project Area(ac) IF - 27 6gQ-----
3 Coastal Wetland Area(ac) j---- 0 ----—
4- Surface Water Area(acy I -- -- — - 0
5 Is this project High or Low Density?
-------•--- High.----
6 Does this project use an off-site SCM? No
COMPLIANCE WITH 02H 1-003(4) !
7 Width of vegetated setbacks provided(feet) i N/A__
8 Will the vegetated setback remain vegetated?
9 Is BUA other that as listed in.1003(4)(c-d)out of the setback? --_��
N/A
10 Is streambank stabilization proposed on this project? � No - -- -_j
NUMBER AND TVPE OF Sells:
11 infiltration System
12 Biccr ter7ticr ill
1�+ ��Vet Pond ---------- -��.- ..._-_.__-__...._
14 Sternmater Wetland -T.---
15 Permeable Pavement --------__._ 0_..
16 Sand Filter 0
17 Rainwater Harvesting(RWH) _----0_--- - -
---_ --�
18 Green Roof - 0
19 Level Spreader-Filter Strip(LS-FS) I - -, 0 - --
20 Disconnected Impervious Surface(DIS) i 0
21 Treatment Swale
22 Dry Pond 3
23 Stomvvizr filter __--- —__ 0 - ---_ _.
24 SElvo Cell -
25 16a [ter - 0 -—T---
26 Altura --_ 0 -�_ ----•
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: —_- T.Jason auk, - ----
28 Organization: _- Norris 8:Tunstall Consulting Engineers,P.C.
29 Street address: 2602 Iron Gate Drive,Suite 102 30 City,State,Zip: __- Wilmington..NC 28412
31 Phone number(s):
32 Email: [e-mail]
Certification Statement,
!certify,under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or
supervision,that the information provided in the form rs,to the best of my knowledge and belief,true,accurate,and complete;and
that the engineenng plans,specifications,operation and maintenance agreements and other supporting information are consistent
with the information provided here
Pesioner
rq '
S•
O
I •�•• Signature signer +•-
= SEAL r. _
�:• 03086 _ LIt 13 2020
•!�GfNEE�•�� BY:
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Seal Date

DRAINAGE AREAS
..,11 Is this a high density project? Yes 1 NT 11131
• 2 If so,number of drainage areas/SCMs tt _ 2 _
Is all/part of this project subject to previous rule I _ - ( tiM'
ir ,�.3 versions? _ No »>uuu+++���
FORMS LOADED
DRAINAGE AREA INFORIIAATION - F---7 Entire Site � '31- 2 --I�
A1s�:Jn�:Y_5...._.c.r.,--.1.-- a"......_.an—_-tea:—__.�_-_ ��di..s. t.— afl •s_- 9.-.. f_� .-S aws•a v_
UG Infiltration11
4 Type of SCM N/A Infiltration Basin Trench
5 Total BUA in project(sq ft) 978591 sf_ L _ 839423 sf _ —139168 sf_
New BUA on subdivided lots(subject to permitting)! I- - - 11
6 (sq ft) {__ 0 sf ___I _ 0 sf I. 0 sf _ {
New BUA outside of subdivided lots(subject to I -' r --' -
7 permitting)(sf) _ 978591 sf 839423 sf ' 139168 sf
8 Offsite-total (sqareaft)
�� � 11 I- 8261 sf 8261 sf 0 sf
Y 9 Offsite BUA(sq ft) Ir^-_0 sf 0 sf !i 0 sf I
10 Breakdown of new BUA outside subdivided lots: ., �: _ _ _ �i
-Parking(sq ft)
386175 sf_ {• 268130 sf118045 sf
-Sidewalk(sq ft) _15703 sf - _____4_--_
762 sf 14341 sf
-Roof(sq ft) 425250 sf_ ,: 425250 sf_ } 0 0
-Roadway(sq ft) ____0_sf -'_ 0 sf l4L� __D DAL__ j
-Future(sq ft) � 0 sf-- 0 sf f _0 sf
-Other,pleases city-n the m t box b i___ "' 1
below(sq ft) cb kW(' I 152063 sf ' 145281 sf C� 6782 sf j
New infiltrating permeable pavement on I'_— __ ___-___�-_
11 subdivided lots(sq ft) _ 0 sf __1 __0 sf.__ __'_0_s _f __
New infiltrating permeable pavement outside of (I � '-
12 subdivided lots(sq ft) 0 sf NI 0 sf 0 sf I
Exisitng BUA that will remain(not subject to -� �I tF
13 permitting)(sq ft) 0 sf '� _ 0 sf -- ;� 0 sf I
14 Existing BUA that is already permitted(sq ft) L 0 sf _ 0 sf ji 0 sf
15 Existing BUA that will be removed(sq ft) 0 sf I -0 sf I 0 sf i
16 Percent BUA � 80%%-r � '8'4'H6 �r�_0%___ j
=1 :I __
17 Design storm(inches) _1.5 in i 1.5 in 1.5 in _
18 Design volume of SCM(Cu ft) 1 0 cf i 100638 cf I� 16B18 cf
19 Calculation method for design volume Simple �j SimpleJ Simple
ADDITIONAL INFORMATION __
Please use this space to provide any additional information about the
20 drainage area(s):
*Parking impervious includes 3,345 SF of impervious from off-site.
li• ' E7)
JAN 2 r :;.,:°"411
BY:

INFILTRATION SYSTEM N A-I1 Is I
,1 Drainage area number 1 (Basin) IL— 2(Trench) P
2 Design volume of SCM(Cu ft) �_' 100638 cf _ it �16618 cf T' �(�Af k 01,q �_�Il
ERAL MDC FROM 02H.1050 _- — 1�[J 1f r .L 1
3 Is the SCM sized to treat the SW from all surfaces at build-out? !-- Yes _ Yes V
4 Is the SCM located away from contaminated soils? I Yes -Yes
5 What are the side slopes of the SCM(H:V)? 3 1 I 1:1
6 Does the SCM have retaining walls,gabion walls or other engineered side slopes? No No
i
• 7 Are the inlets,outlets,and receiving stream protected from erosion(10-year storm)? I Yes HYes r
i
8 Is there an overflow or bypass for inflow volume in excess of the design volume? I Yes L_ Yes _ _ _
9 What is the method for dewateringthe SCM for maintenance? Pump _. -• rr ,
(preferred) . Pump(preferred)
10 If applicable,will the SCM be cleaned out after construction? Yes Yes_
11 Does the maintenance access comply with General MDC(8)? Yes _i _ -
Yes 1
12 Does the drainage easement comply with General MDC(9)? Yes (( --Yes
If the SCM is on a single family lot,does(will?)the plat comply with General MDC
13 (10)? N/A N/A
14 14 Is there an O&MAgreement that complies with General MDC 11 ? - "--p ( ). Yes �^-_ Yes
15 Is there an O&M Plan that complies with General MDC(12)? Yes I Yes
16 Does the SCM follow the device specific MDC? Yes �, Yes i
17 Was the SCM designed by an NC licensed professional? { Yes '_- .Yes
NFILTRATION SYSTEM MDC FROM 02H 1051
18 Proposed slope of the subgrade surface(%) 7_ 0% — �' —0%a---_.�
19 Are terraces or baffles provided? j No i^� No jr-
4.
20 Type of pretreatment - - -Sum (ft DI hSump CD DI \
7 W1
Solis Data
Was the soil investigated in the footprint and at the elevation of the infiltration ___filt JOIA) 11:8"jkld
21 system? Yes
SHWT _Yes9.8
22 elevation(fmsl) 9.50 1 1
23 Depth to SHWT per soils report(in) {� *69.57 i$ *60
24 Ground elevation at boring in soils report(fmsl) 15.30 i__ 13.97
r {
25 Is a detailed hydrogeologic study attached if the separation is between 1 and 2 feet? Yes No
26 Soil infiltration rate(in/hr) 24 92 14.44 -._
Elevations
27 Factor of safety(FS) (2 is recommended): ---J__ 1,56 _ __ 2.00 _ .l
-"29 Bottom elevation(fins!) -T- - 10.5 ft_ 12 ft
30 Storage elevation(fmsl) 1435 ft 17 ft
31 Bypass elevation(fmsl) -"'14..35 ft 17 ft
For Basins Only
32 Bottom surface area,ft2: 28925 ft 1-:___ N/A
33 Storage elevation surface area(ft2) 70150 ft NIA
-�
For Trenches Only_34 Length(ft) - ---- --~- N/A 1990 ft
35 Width(ft) - N/A 7 5 ft
36 Perforated pipe diameter,if applicable(inches) N/A __- 36 in_^
37 Number of laterals N/A • 1
38 Total length of perforated piping _-N/A 1990 ft 39 Stone type,if applicable _ N/A -_-#57
40 Stone void ratio(%) -N/A 40%
41 Is stone free of fines? _-_ N/A --__ Yes
42 Is the stone wrapped in geotextile fabric? N/A Yes'
_ 43 Has at least one infiltration port been provided? --- N/A, Yes -
VolumeslDrawdown - -_ _-_--
44 Design volume of SCM(cu ft) - -- yy- 1DG638 of ;.._._..16618 cf_
45 Time to drawdown(hours) 2.78 hrs _ .... 1 85 hrs
_. _ �7——:!�.-wine_+e:rasaa-�.�r-.mow+.�R+ns:a�r-._--
'ADDITIONAL INFORMATION� _
Ile
e this any S-dditi n_.__.f _�i n-- rat�_-
Please use this space to provide any additional information about the infiltration
46 system(s):
1 Borings 11-17 average to find SHWT&Rate for Basin.
I 2 Borings 18-110 average to find SHWT&Rate for Trench.
3. ECS did report to allow Infiltration Basin#1 to have 1 foot separation between �l -
� I ;
t bottom&SHWT.
BY:
Infiltration 1 2:46 PM 1/25/2021

6
Operation & Maintenance Agreement
Project Name: Wilmington Trade Center
Project Location: 4104 US Hwy.421 North
i!iainteranca records shall be kept cn the following aliiMP(s). This mainterance record shall 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 integrity of structures,safety of the public,and the pollutant removal efficiency of the BMP(s).
The IBMP(s)on this project include(check all that apply&corres:•onding O&M tables will be added automatically):
Bioretention Cell Quantity Mil Location(s).
Dry Detention Basin Quarrtiy:WM Locatiorrls).
Grassed Swale Quantity: Location(s):
Green Roof Quantity: Location(s):.
Infiltration Basin Quantity: f Location(s):,See Plans
Infiltration Trench Quantity:NMI Lo ion(sy See Plans
Level SpreaderNFS Quantity
� Ixr�it�n(s):
Permeable Pavement Quantity:Mi. Location(s):
Proprietary System Quantity:NMI Loc ation(s)-
Rainwater Harvesting Quantity:NM Location(s): ».
Sand Filter Quantity:MS Locations) __
Stormwater Wetland Quantity:MEN Location(s):
Wet Detention Basin Quantity: 0 Location(s):
Disconnected impervious Area Present. No Location(s): i
User Defined 8MP Present: No Location(s):
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each BMP above,and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to
the system or responsible party.
*Responsible Party: McKinley D.Dull
Title&Organization: Manager I Seamil st Properties,LLC
Street address: 3807 Peachtree Avsnae,Suite 200
City, state,zip. INilrnbnoton,NC 20403 w
Phone number(s): 8111E-33954036
Email: kdultirnckinteybultding.00m
Signature: '1 1_- { /Date: / 4' '
l
I. A(Y1ck ' idiuG13 ,a Notary Public for the State of .,,,1,1 I 0 (r`Itt k—
County of 3 y O 1 r IC ,do hearty certify that 1 0 Icr_len b. . AI
I
personally appeared before me this I 0 . day of avientberd eQO O .asstiflewu%
acknowledge the due execution of Operate rid aintenance Agreement- `l HATg4y�`
Witness my hand and offal seal.
VIJ WaSI On I l'eS CO 0-6/49°a-4 NOTARY
co PUBLIC v
1 "..C'iit'"1'VAC:"\itiCK C0‘1...a4t/
k fl
V 3 2U2j
20
:rsion 1.4 O&M.Manua! nsrao
Pan*1+,td

Seal My commission expires
RECEive-7
:i. 13 2023
BY•
STORM-EZ 9/9/2020
Version 1.4 O&M Manual Page 2 of 4

Infiltration S stem Maintenance Requirements
important maintenance procedures:
- The drainage area will be carefully managed to reduce The sediment load to The infiltration basin.
- Immediately after the infiltration basin is established,the vegetation will be watered twice weekly if needed until
the plants become established (commonly six weeks).
No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the
vegetation.
- The vegetation in and around the basin will be maintained at a height of approximately six inches.
After the infiltration basin is established, it shall be inspected once a quarter and within 24 hours after every storm event
greater than 1.0 inches(or 1.5 inches if in a Coastal County). Records of operation and maintenance shall be kept in a known
set location and shall 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 to remediate the problem:
The entire BMP Trash/debris is present. Remove the trash/debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then plant a
infiltration basin erosive gullies have formed. ground cover and water until it is established. Provide lime and a one-
time fertilizer application.
The inlet device: pipe or The pipe is clogged (if Unclog the pipe. Dispose of the sediment off-site.
swale applicable).
The pipe is cracked or Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the Regrade the swale if necessary to smooth it over and provide erosion
swale(if applicable). control devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
The forebay Sediment has accumulated Search for the source of the sediment and remedy the problem if
and reduced the depth to 75% possible. Remove the sediment and dispose of it in a location where it
of the original design depth. will not cause impacts to streams or the BMP.
Erosion has occurred or Provide additional erosion protection such as reinforced turf matting or
riprap is displaced. riprap if needed to prevent future erosion problems.
Weeds are present. Remove the weeds, preferably by hand. If pesticides are used, wipe
them on the plants rather than spraying.
The main treatment area A visible layer of sediment Search for the source of the sediment and remedy the problem if
has accumulated. possible. Remove the sediment and dispose of it in a location where it
will not cause impacts to streams or the BMP. Replace any media
that was removed in the process. Revegetate disturbed areas
immediately.
Water is standing more than 5 Replace the top few inches of filter media and see if this corrects the
days after a storm event. standing water problem. If so, revegetate immediately. If not, consult
an appropriate professional for a more extensive repair.
Weeds and noxious plants Remove the plants by hand or by wiping them with pesticide(do not
are growing in the main spray).
treatment area.
The embankment Shrubs or trees have started Remove shrubs or trees immediately.
to grow on the embankment. ' re,
An annual inspection by an Make all needed repairs. C ,1 ;
appropriate professional
shows that the embankment BY.
needs repair.
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.
STORM-EZ 9/9/2020
Version 1.4 O&M Manual Page 3 of 4

The receiving water Erosion or other signs of Contact the local NC Department of Environment and Natural
damage have occurred at the Resources Regional Office.
outlet.
1....,"...„.
, , .,
. ,,,„,
eJ
BY
STORM-EZ 9/9/2020
Version 1.4 O&M Manual Page 4 of 4