SW7090905_CURRENT PERMIT_20210621

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW �e5y
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

WM
ROY COOPER
Governor
JOHN NICHOLSON
Interun Secretary
BRIAN WRENN
Director
Duc Nguyen
100 Bridge Pointe
New Bern, NC 28562
NORTH CAROLINA
Environmental Quality
June 21. 2021
Subject: Stormwater Permit No. SW7090905 Renewal
Musashi Restaurant and Office Complex
High Density Stormwater Project
Craven County
Dear Duc Nguyen:
The Washington Regional Office received a Stormwater Management Permit
Application for renewal of the subject permit on May 25, 2021. Staff review of the
application has determined that the permit can be reissued. We are forwarding Permit
No. SV 7090905 dated June 21, 2021, for the continued operation of the existing
stormwater system.
This permit, upon its effective date, will replace all previous State Stormwater permits for
this project. This permit shall be effective from January 1, 2022 until December 31, 2030
and shall be subject to the conditions and limitations as specified therein, and does not
supersede any other agency permit that may be required. Please pay special attention to
the Operation and Maintenance requirements in this permit. Failure to establish an
adequate system for operation and maintenance of the stormwater management system
will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you
have the right to request an adjudicatory hearing upon written request within thirty (30)
days following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714.
Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact me at [phone].
Sincerely,
Roger K. Thorpe
Environmental Engineer
-yJ�t North Carolina Department of Environmental Quality 1 Division of Ener gv.1viinerai and Land Resources
Washington Regional Office 1 948 Washington Square Wail 1 Washingron. North Carolina 27889
252946.6481
•:+Y'ITv ''��VV

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules and Regulations
PERMISSION IS HEREBY GRANTED TO
Duc Dguyen
Musashi Restaurant and Office Complex
Located at 219 US Hwy 70, Havelock, NC
Craven 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
the approved stormwater management plans and specifications and other supporting
data as attached and on file with and approved by the Division of Energy, Mineral, and
Land Resources (Division) and considered a part of this permit.
This permit shall be effective from January 1, 2022 until December 31, 2030, and
shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.7 of this permit. The stormwater control has been
designed to handle the runoff from 21,429 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated in Section 1.7 of
this permit, and as shown on the approved plans.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
North Carolina Department of Environmental Quality. I Uivision of Energy. Mineral and Land Resources
J/ Washington.Regional Office I °d3 Washington Square Hall I Washington. North Carolina 2:889
,OOo 252.94ob481

The runoff from all built -upon area within the permitted drainage area of this project
must be directed into the permitted stormwater control system.
The built -upon areas associated with this project shall be located at lest 50 feet
landward of all surface waters.
The following design criteria have been permitted for the wet detention pond and
must be provided and maintained at design conditions:
a. Drainage Area, ftz:
b. Total Impervious Surfaces, ftz:
C. Design Storm, inches:
d. Pond Depth - average, feet:
e. TSS removal efficiency:
f. Permanent Pool Elevation, FMSL:
g. Permanent Pool Surface Area, ftz:
h. Permitted Storage Volume, ft3:
i. Temporary Storage Elevation, FM
j. Predevelopment 1 year 24 hour:
k. Post development 1 year 24 hour:
I. Controlling Orifice:
M. Permitted Forebay Volume, ft3:
n. Receiving Stream/River Basin:
o. Stream Index Number:
P. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
38,202
21,429
1.5
3.0
90%
22.00
2,486
7,885
SL: 24.00
1.47 ft3/s
0.44 ft3/s
1.25"0 pipe
780
Wolf Pit Branch / Neuse River basin
27-112-1-4
"SC. SW. NSW"
The stormwater management system shall be constructed in its entirety, vegetated
and operational for its intended use prior to the construction of any built -upon
surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance necessary
to assure the permitted stormwater system functions at optimum efficiency. The
approved Operation and Maintenance Plan must be followed in its entirety and
maintenance must occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
J North Carolina Department' of Environmental Qualitv Division of Energy. vilneral and Land Resources
J/ Washington Regional Office 1943 Washington Square )tall I Washington, North Carolina 27889
' OOO 252.946.0481

Records of maintenance activities must be kept for each permitted SCM. The
reports will indicate the date, activity, name of person performing the work and
what actions were taken.
5. The permittee shall submit to the, Division an annual summary report of the
maintenance and inspection records for each SCM. The report shall summarize
the inspection dates, results of the inspections, and the maintenance work
performed at each inspection.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
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.
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.
9. Access to the stormwater facilities shall be maintained via appropriate easements
at all times.
10. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee, for
which Sedimentation and Erosion Control Plan approval or a CAMA Major
permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
11. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
oeeW_ _ North Carolina Department of Environmencal Quality Division of Energy. 6fineral mtd Land Resources
J/ Washington Regional Office Qd3 Washington Square Mall I Washington. North Carolina 2788Q
^..wAK+ G
/2529400481

12. A copy of the approved plans and specifications shall be maintained on file by the
Permittee at all times.
13. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame specified
in the notice, the permittee shall submit a written time schedule to the Director for
modifying the site to meet minimum requirements. The permittee shall provide
copies of revised plans and certification in writing to the Director that the changes
have been made.
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event of a change of ownership, or a name change,
the permittee must submit a completed Name/Ownership Change form to the
Division, signed by both parties, and accompanied by the appropriate
documentation as listed on page 2 of the form. The approval of this request will be
considered on its merits and may or may not be approved.
The permittee is responsible for compliance with all permit conditions until such
time as the Division approves any transfer request.
Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
The permittee grants DEQ Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
controls must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
/� North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
Lam, //" '� Washington Regional Office 1913 Washington SquareMall I Washington, North Carolina 27889
252.9,16.6481

9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. 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
as allowed by the laws, rules and regulations contained in Title 15A NCAC
211.1000, and NCGS 143-215.1 et. al.
11. The permittee shall notify the Division in writing of any name, ownership or mailing
address changes at least 30 days prior to making such changes.
12. This permit shall be effective from January 1, 2022 until December 31, 2030.
Application for permit renewal shall be submitted 180 days prior to the expiration
date of this permit and must be accompanied by the processing fee.
Permit issued this the 21 st day of June 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
For
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW7090905
e Nor th Carolina Department of environmental Quality i Division of "nergy. Mineml and! and Resources
Washington Regional Office 19.13 Washington Square Mall I Washington, North Carolina 2738Q
a:w'— ✓':',r m^� /'� 252.94h.0481

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: SW7090905
2. Project name: Musashi Restaurant and office complex
3. Project street address: 219 us highway 70
City: Havelock County: Craven —ZIP:
28352
4. What, if any, changes have been made to the project as permitted?
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., https://deg.nc.gov/about/divisions/energy-
min era I-land-resou rces/energy-mineral-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://deg.nc.gov/about/divisions/enerqv-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: Duc nguven
2. Signing Official's Name: Duc neuyen,
3. Signing Official's Title: owner
4. Mailing Address: 100 bridge Pointe
City: new bern State: nc ZIP: 28562
5. Street Address: 100 bridgepointe
City: new bem State: nc ZIP: 28562
6. Phone: [phone] Email: musashinb3ng.gmail.com
MAY 2 5 2021
Stormwater Permit Renewal Form
Page 1 of 3 /"
I>13r 7il
May 11, 2018

C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Igitial each item below to indicate that the required information is provided in the application package:
ddn �i 1. A permit application processing fee of $505.00 payable to NCDEQ.
dnngA 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or 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
k signature of another entity.
dnn )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.
do 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.
k
dng 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://www.sosnc.gov/online services/search/by title/ Business Registration
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTEE'S CERTIFICZ
I, �U c_ Luu , the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agfeerront 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 inf ion provided on this permit renewal application is, to the best of my
knowledge, correct and complete.
Signature: Date: S'4 Z
NOTARIZATION:
I, LEE N shM , a Notary Public for the State of
^&OR,W P42oL /NA County of R.A`J&KJ , do hereby certify
that Duc, }Ruu jJCn U y&AJ personally appeared before me
this the a„ day of ,vlA Y 20'z I , and acknowledge the due
p'CARY
�eal)
AUBOG
My
instrument. Witness my hand and official seal,
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

ROY COOPER
Governor
DIONNE DELLI-GATTI
Secretary
BRIAN WRENN
Director
Duc Nguyen
100 Bridge Pointe Dr.
New Bern, NC 28562-6458
Dear Duc Nguyen:
NORTH CAROLINA
Environmental Quality
May 13, 2021
Subject: Stormwater Permit Renewal
Stormwater Management Permit SW7090905
Musashi Restaurant
Craven County
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7090905 for a stormwater treatment system consisting of a wet
detention pond serving the Musashi Restaurant located at 219 US Hwy 70 in Havelock,
NC expires on December 31, 2021. This is a reminder that permit renewal applications
are due 180 days prior to expiration. We do not have a record of receiving a renewal
application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Application forms for renewal can be found on our website at:
https: /ideq.nc.gov/about/divisions/energy-mineral-land-resources/energy-mineral-land-
rules/stormwater-program/post-construction. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit. Failure to maintain a permit subjects the owner to assessment of civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like. I can e-mail you a copy of the
application form. You can request a copy by e-mailing me at roger. thorpeCaDncdenr.gov.
Sincerely,
r Roger K. Thorpe
Environmental Engineer
D _E Q�� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889
252.946.6481

Permit Number.
(to be provided by DWQ)
Drainage Area Number.
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMp.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
does ® does not
This system (check one):
❑ does ® does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimised to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element.
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present
Remove the trash/debris.
The perimeter of the wet
detention basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide time and a
one-time fertilizer application.
Vegetation is too short or too
long.
Maintain vegetation at a height of
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4
/s

Permit Number.
(to be provided by DWQ)
Drainage Area Number.
BMP element
Potential Problem
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erasion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
a depth greater than the
Search for the source of the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant.
health
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
a depth greater than the
original design sediment
storage depth.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
50% of the area
Consult a professional to remove
and control the algal growth.
Cattails, phragnrites or other
invasive plants cover 50% of
Remove the plants by wiping them
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4
Page 2 of 4
16

Permit
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potential problenr
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. (if applicable)
The outlet device
Clogging has occurred-
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have oocurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 4.2 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads .7 feet in the forebay, the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
Sediment Removal a 23.5
------------- -- vole ,
Bottom Elevatio 22.8 ft Min.
Sediment
Storage
FOREBAY
Permanent Pool Elevation 22.0
Sediment Removal Elevation 17.8 volum(
---------------------- ------
Bottom Elevation 16.8 11-ft
MAIN POND
Storage
Form SW401-Wet Detention Basin O&M-Rev.4
Page 3 of 4
i -1

Permit
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Musashi Restaurant and Office Comnlex
BMP drainage area
Print name:
Title:owner
Address:2 Pier Pointe
Date: /tl 14 t (O
Note: The legally responsible party should not be a homeowners association unless more than 500/6 of
the lots have been sold and a resident of the subdivision has been named the president.
1, a Notary Public for the State of
County of , do hereby certify that
personally appeared before me this
day of I , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My commission
Form SW401-Wet Detention Basin O&M-Rev.4
Page 4 of 4
/r

High Densitv'Comrrtercial Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000, the Management Regulations, deed restrictions and
protective covenants are required for High Density Commercial 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-
upoon�n area consistent with the design criteria used to size the stormwater control facility.
I, 1sgdxia , acknowledge, affirm and agree by my signature below, that
I will cause the oAowing deed restrictions and covenants to be recorded prior to the sale of any lot
within the projeot known as
1. The following covenants are intended to ensure ongoing compliance with State stormwater
Management Permit Number as issued by the Division of Water Quality
under NCAC 2111000.
2. The State of North Carolina 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 covenants pertaining to stormwater may not be altered or rescinded without the express
written consent of the State of North Carolina, Division of Water Quality.
5. Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the Division of Water Quality.
6. The maximum allowable built -upon area per lot is J1 4*f- square feet. (OR, if the
proposed built -upon area per lot will vary, please use the following format & language (in bold):
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-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.
7. All runoff from the butt -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 runoff
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 additional measures.
8. The owner of each lot, whose ownership is not retained by the pemtittee, is required to submit a
separate stormwater permit application to the Division of Water Quality and receive a permit
prior to construction.
, a Notary Public in the
State of County of
do hereby certify that personally appeared
before me this the day of 20 , and acknowledge
the due execution of the foregoing instrument. Witness my hand and official seal,
SEAL
Signature
My Commission expires
Form DRPC-1 Rev-1 Page 1 of 1
i9

S-ig-la
STORMWATER SUBMITTAL REQUIREMENTS
WET DETENTION POND
Objective n� v3� �' _ k(
A. Collect all runoff from all BUA (proposed and/or existing and/or offsite) as the case may be,
by any means including piping or swales, and direct it to the pond.
B. Check the proposed pond design to make sure it meets or exceeds the minimum design
criteria for surface area, volume and drawdown.
II. What makes up a complete wet detention pond application package?.
A. Two sets of sealed, signed & dated layout & grading plans with appropriate details.
(Additional sets of plans may be requested for projects in certain counties)
B. Completed application with supplement(s), SWU-101, SW401-Wet Pond, and inspection and
maintenance agreements.
C. Deed restriction document, if applicable (for subdivisions & projects with out parcels)
D. Sealed, signed & dated calculations.
E. Estimated seasonal high water table elevation at all pond locations.
F. Chlorides test results must be provided if the project is within''/2 mile of SR waters (Phase II).
(This is only required to test out of SR water treatment requirements)
III. BIMS entry (for DWQ use only) _. a
Enter & track application acknowledged date, review date, add info requested/received dates, permit
issue dates, and drainage area info. Best done after the add info letter is written and before sending
permit up for signature.
IV. Shell documents (for DWQ use only)
Permit shells: s:\wqs\stormwater\shells\highcompond
s:\wqs\stormwater\shells\highsubpond
s:\wqs\stormwater\shells\HDhybrid
Spreadsheet: s:\wqs\stormwater\excel spreadsheets\pond
VI. Review Procedure
A. APPLICATION
1.''%'ifin original signature is required. Photocopied signatures cannot be accepted.
2. A ompleted wet detention pond supplement and a signed, dated and notarized wet
etention pond Inspection and Maintenance Agreement with an original signature.
3. The numbers on the supplement match up to the numbers used in the calculations and
shown on the plan details.
4. V uilt-upon areas are reported in square feet in Section 111.6.
5.> Receiving stream name and classification. This is important because in the non -Phase
II counties, a wet pond cannot be used on a project that is within '/z mile of and draining
•/to SA waters. For Phase II, a wet pond is allowed within '/z mile of SA waters.
6. ✓ /Section 111.6 is filled in -cannot be left' blank. One column must be filled in for each
/ proposed wet pond.
7. If the applicant is a corporation, partnership or LLC, look it up on the Secretary of State.
Corporations Database. Make sure corporation is spelled correctly (capitalization and
punctuation matter) and that the person signing the application is at least a. vice-
president in the corporation, a General Partner in the partnership, la member in a
member -managed LLC, or the manager of a manager -managed LLC. Need
d cumentation to support if the Articles of Incorporation do not list the members or
managers of the LLC. If an agent signs, then a letter of authorization is needed from the
president, vice president, general partner, member or manager. "
8. For subdivided projects, a signed and notarized deed restriction statement must be
provided.

Wet Detention Pond, cont.
B. CALCULATIONS
1 Th f d b d d d th I I t d 1 2 5
e on ice is size , ase on rawing own a ca cu a e minimum vo ume in -
days. The average head to use in the orifice equation is approximately one-third of
the distance between the permanent pool elevation (PPE) and the elevation of the
next available outlet above the permanent pool. The elevation of the next available
outlet must be either the elevation where the minimum volume is provided, or it can
be higher. The temporary pool elevation (TPE) to report on the supplement will be
the elevation of the next available outlet above the PPE. The temporary pool volume
(TPV) to report on the supplement is the volume between the specified PPE and the
20TPE.
For Phase II projects that are within Y2 mile of and draining to SR waters, the
ifference in runoff from the predevelopment and post -development conditions for
the 1 year 24 hour storm must be controlled and treated.
3. For Phase II projects, the discharge rate leaving the pond can be no more than the
re -development discharge rate for the 1 year 24 hour storm.
4. ! l or Phase II projects draining to SA water, no discharge to surface waters may occur
from wet ponds. The discharge leaving the orifice must be effectively infiltrated prior to
reaching surface waters.
5. The average pond depth is the permanent pool volume divided by the permanent pool
surface area The result must be between 3 ft. and 7.5 ft. Parts of the pond can be
deeper than 7.5 ft., but in no case can any part of the pond be less than 3 ft deep.
✓6N' If the 85% TSS chart is used a 30' vegetated filter must be provided at the outlet of the
0
2
Mr) loom.
pond. If the 90 /o TSS chart is used, no filter is required.
7. Use t e correc A/DA c a—tr rom he BNIP Manual noting that there are different
charts for different areas of the State.
8. Required surface area at permanent pool.
9. Provided surface area at permanent pool (Based on pond dimensions)
V/10. Required volume calculation based on 1.5" storm for Phase II projects' and 1" storm for
all others projects. 'unless the project is Phase II and within'/ mile of and draining to
SR waters then the volume calculation must be based on difference between the pre
11VT,and post development conditions for the 1-yr 24-hr storm.
able of elevations, areas, incremental volumes and accumulated volumes for overall
12/pond and for forebay, to verify volumes provided.
Forebay designed to hold 20% of the permanent pool volume. (Range of 18%-22%
139OK.)
/allon-erosive flow for 10 yr. storm in the vegetated filter, if using 85% TSS.
14v The seasonal high water table must be at or below the proposed permanent pool
elevation to assure that the necessary volume will be available above the permanent
spool.
15V Rounding numbers off during the calculation process can result in deficiencies. Do not
round the numbers until you get to the final result.
16L' An additional one foot must be excavated below the bottom elevation of the pond. The 1
foot sediment accumulation depth is not included in the average depth calculation.
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Wet Detention Pond, cont.
C. PLANS- Due to storage space constraints, plan sheets should be kept to a minimum. For
small commercial single wet pond projects, the plan set could consist of only 2 or 3 sheets,
layout, grading and details. For larger projects, show as much information as possible on as
few sheets as possible, without cluttering them up.
1. Development/Project Name
2.VEngineer name and firm.
3. �,,Jegend
4. VK North Arrow
5.Lf Location Map with nearest intersection of two major roads shown. Major road is any 1,
YX 3 digit NC, US or interstate highway.
6. bale- standard engineering scale, no off-the-wall stuff.
7. ate
8 VR6vision number and date, if applicable.
9. Original contours, proposed contours, spot elevations, finished floor elevations, pipe
inverts, swale inverts, etc.
10. L,Existing drainage (piping, swales, ditches, ponds, etc.), including off -site. Include a map
delineating the offsite drainage areas.
11.V Property/Project boundary lines, bearing & distances.
12W can High Water Line or Normal High Water Line, if applicable.
13.Vhe permanent pool elevation must be above the SHWT and above the lowest
elevation of adjacent wetlands. Evaluate the need for a liner and/or berm/slurry wall to
,prevent dewatering the wetland.
14Y Drainage easement widths, pipe sizes and swale inverts are provided.
15.G/Wetlands delineated, or a note on the plans that none exist. Get a copy of the wetlands
delineation map signed by the Corps of Engineers, or have the applicant include a copy
of the unsigned delineation map submitted to the Corps. Wet ponds may not be located
in wetlands unless a permit to fill those wetlands has been obtained.
16 ✓Details for the roads, parking, cul-de-sacs, including sidewalk width, radii, dimensions &
slopes.
17.160partment / Condo development- Provide a typical building footprint with dimensions
end note all concrete and wood deck areas.
18.V The drainage area for each wet pond is clearly delineated and numbered to match up to
the calculations and supplement. Drainage area delineation is best done as a separate
,plan sheet.
19Y A pond section detail to include the forebay, a 10 foot wide vegetated shelf, pertinent
elevations for the bottom, permanent pool, temporary pool, and SHWr, 3:1 slopes
above the permanent pool, and the weir elevation between the main pond and the
forebay.
20V The 10 vegetated shelf extends 6" below and 6" above the permanent pool elevation.
21✓An outlet structure detail showing a trash rack with 256" square openings, the necessary
orifice invert elevation (i.e., the permanent pool), orifice size and temporary pool
�et6vation.
22. imensions for each line and arc formed by the permanent pool contour.
2- ere the 85% TSS chart was used, a 30 ft. vegetated filter strip is required to be
shown on the plans & detailed (elevations, inverts, slopes, and flow spreader
mechanism). Please note that the filter strip is not a ditch.
24.✓A forebay is provided for each inlet and located so as to prevent short-circuiting.
2 25. The pond must have a minimum 1.5:1 length to width ratio and a minimum 3:1 flow path
length. Artificial "baffles' of timber, vinyl, or earth can be used to create a longer flow
path. The top elevation of the baffle should be set at the temporary pool elevation or
higher.
26. A Vegetation plan is specified for the pond, including slopes. Wetlands species are
listed for planting on the 10:1 shelf. Weeping Love Grass is not suitable as a permanent
vegetated cover for pond slopes.
271, All roof drainage must be directed to the pond. Show the roof drain collection lines on
the plan. This is necessary for projects where the buildings back up the property lines
where roof drainage may leave the site prior to going through the pond.