SW8050814_HISTORICAL FILE_20050826

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

r
�OF NJAT f9 Michael F. Easley, Governor
O G William G. Ross, Jr., Secretary
O y
North Carolina Department of Environment and Natural Resources
O � Alan W. Klimek, P.E. Director
Division of Water Quality
August 26, 2005
Mr. Charles Duncan, President
Duncan Marine Contractors, Inc.
1908 Eastwood Road, Suite 319
Wilmingtgn,.NC 28403
Subject: Stormwater Permit No. SW8 050814
__ Duncan Marine
HigliDensity Project
New Hanover'County
Dear Mr. Duncan:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Duncan Marine on August 25, 2005�-,Staff review of the plans and
specifications has determined that the project, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 050814
dated August 26, 2005, for the construction of the subject project.
This permit shall be effective from the date of issuance until August 26, 2015, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements In this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request an adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands
are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact Paul Bartlett, or me at [phone].
Sincerely;
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/ptb: S:\WQS\STORMWATER\PERMIT\050814
cc: Jonathan W. Ham, Tripp Engineering, P.C.
Tony Roberts, New Hanover County Building Inspections
City of Wilmington Stormwater Services
Beth E. Wetherill, New Hanover County Engineering
Division of Coastal Management
Paul T. Bartlett, P.E.
Wilmington Regional Office
Central Files
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone[phone] Customer Servicet-877-623-6748 One
Wilmington Regional Office Wilmington,NC 284053845 FAX [phone] Internet: h2o.enrstate.nc.us �l0rCt1C8r0/1/1I13
An Equal Opportunity/Affirmative Action Employer—50%Recycled110%Post Consumer Paper Naturally

State Stormwater Management Systems
Permit No. SW8 050814
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Charles Duncan and Duncan Marine Contractors, Inc.
Duncan Marine
New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with
the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules')
and the approved stormwater management plans and specifications and other
supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until August 26, 2015, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 52,408 square feet of
impervious area.
3. The tract will be limited to the amount of built-upon area indicated on page 3 of
this permit, and per approved plans. This permit has no built-upon area allotment
for future development.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built-upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 050814
6. The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a. Drainage Area, Acres: 1 .97
Onsite, ft : 53,143
Offsite, ftz: 32,670
b. Total Impervious Surface, ftz: 52,408
Onsite Buildings ft : 4,000
Onsite Gravel, ft2: 23,705
Onsite Cgncrete, ftz: 200
Offsite, ft : 24,503
C. Design Storm, inches: 1.0
d. Pond Depth, feet: 7.0
e. TSS removal efficiency: 90%
f. Permanent Pool Elevation, FMSL: 45.0
g. Permanent Pool Surface Area, ftz: 4,060
h. Permitted Storage Volume, ft3: 7,286
i. Temporary Storage Elevation, FMSL: 46.5
j. Controlling Orifice: 1.0"0 pipe
k. Permitted Forebay Volume, ft3: 4,209
I. Receiving Stream/River Basin: Smith Creek / Cape Fear
M. Stream Index Number: 18-74-63
n. Classification of Water Body: "C; Sw"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built-upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
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 outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 050814
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
5. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent
pool surface.
b. Separated units, where the nozzle, pump and intake are connected by
tubing, may be used only if they draw water from the surface in the
deepest part of the pond.
c. The falling water from the fountain must be centered in the pond, away
from the shoreline.
d. The maximum horsepower for a fountain in this pond is 1/8 horsepower.
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.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A .
modification may be required for those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
9. Access to the stormwater facilities 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.
12. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 050814
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
1 . This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, documentation
from the parties involved, and other supporting materials as may be appropriate.
The approval of this request will be considered on its merits and may or may not
be approved. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
Permit issued this the 26th day of August 2005.
NORTH eAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 050814
Duncan Marine
Stormwater Permit No. SW8 050814
New Hanover County
Designer's Certification
I, as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
SEAL
Signature
Registration Number
Date
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 050814
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built-upon area.
3. All the built-upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1 .
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11 . The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspections
Page 7 of 7

V­1_�," ' OFFICE`OSE ONLY VA
r,nr
Date Received Fee Paid Permit Number
1SWEak J
A 7- State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
I Applicants name(specify the name of the corporation, individual, etc. who owns the project):
-Duncan Marine GM r 5 11 - uk 1
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
-Charles Duncan, President
3. Mailing Address for person listed in item 2 above:
1908 Eastwood Road, Suite 319
City: Wilmington State: NC Zip: 28403
Telephone Number: 910-256-6620
4. Project Name (subdivision, facility, or establishment name-should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
-Duncan Marine
5. Location of Project(street address):
2728 North 23 d Street
City: Wilmington County: New Hanover
6. Directions to project(from nearest major intersection):
From NC 133 and North 23 d Street, turn left onto North 23 d Street and continue 0.28 miles and site is on
-the left.
7. Latitude N 340 16' 12" Longitude: W 77' 55' 25"_of project
8. Contact person who can answer questions about the project:
Name: Jonathan W. Hain Telephone Number: 910-763-5100
II. PERMIT INFORMATION:
1. Specify whether project is(check one): X New Renewal Modification
Form SWU-10 1 Version 3.99 Page I of 4

�1. 2— swe 05"0,314-
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list
The existing permit number and its issue date(if known)
3. Specify the type of project(check one):
Low Density X High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major _Sedimentation/Erosion Control 404//401 Permit NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages)describing stormwater management for the project.
Stormwater will be treated through wet detention.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: 1.29 acres 4. Project Built Upon Area: 49.66 %.
5. How many drainage basins does the project have? 1
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin htformatiion� rs� 'ctl site 'n -
Receiving Stream Name Smith Creek Smith Creek
Receiving Stream Class C Sw C SW
Drainage Basin Area 1.97 acres 1.22 acres
Existing Impervious * Area - -
Proposed Impervious * Area 1.20 acres 0.64 acres
% Impervious* Area(total) 61.0% 49.66%
Impervious * Surface Area r ..Drainage Basin Y R` Drainage Basin 2 t
d,p eu.,. ...v.... ..n,. a .0 . ..x
On-site Buildings 4,000 sf 4,000 sf
On-site Streets - -
On-site Gravel 23,705 sf 23,705 sf
On-site Concrete 200 sf 200 sf
Other on-site
Off-site 24,503 sf
Total: E= 52,408 sf Y=27,905 sf
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads,parking
areas sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of

7. How was the off-site impervious area listed above derived? 0.75 acres (a, 75% impervious
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a
table listing each lot number, size and the allowable built-upon area for each lot must be provided as an
attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality. These covenants may
not be changed or deleted without the consent of the State.
2. No more than square feet of any lot shall be covered by structures of impervious materials.
Impervious materials include asphalt,gravel, concrete, brick stone,slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in,piped or altered except as necessary to provide driveway crossings.
4. Built-upon area in excess of the permitted amount requires a state stormwater management permit modification prior
to construction.
S. All permitted nmofffrom outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the
integrity and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above,that the covenants will be binding on all parties and
persons claiming under them, that they will run with the land, that the required covenants cannot be changed or
deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for
each BMP specified for this project. Contact the Stonnwater and General Permits Unit at [phone] for
the status and availability of these forms.
Form SWU-102 Wet Detention Basin Supplement
Form SWU-103 Infiltration Basin Supplement
Form SWU-104 Low Density Supplement
Form SWU-105 Curb Outlet System Supplement
Form SWU-106 Off-Site System Supplement
Form SWU-107 Underground Infiltration Trench Supplement
Form SWU-108 Neuse River Basin Supplement
Form SWU-109 Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality(DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
I. Please indicate that you have provided the following required information by initialing in the space
provided next to each item.
Applic is Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of$420(payable to NCDENR) ZJ
• Detailed narrative description of stormwater treatment/management ,v
• Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number and date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours,proposed contours,spot elevations,finished floor elevations
- Details of roads,drainage features, collection systems, and stormwater control measures
- Wetlands delineated,or a note on plans that none exist
- Existing drainage(including off-site),drainage easements,pipe sizes,runoff calculations
- Drainage areas delineated
- Vegetated buffers(where required)
VIl. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent(individual or firm): Tripp Engineering, P.C.
Mailing Address: 419 Chestnut Street
City: Wilmington State: NC Zip: 28401
Phone: [phone] Fax: [phone]
Vill. APPLICANT'S CERTIFICATION
I, (print or type name ofperson listed in General Information, item 2) Charles Duncan
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 15A
NCAC 21-1 .1000.
Signature: ( Le'�-�-� Date: -7-r/-o5-
Form SWU-101 Version 3.99 Page 4 of 4

Permit No. S r V R D6N 14
(to be provided by DWQ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
1. PROJECT INFORMATION (please complete the following information):
Project Name: Duncan Marine
Contact Person: Jonathan W. Flam Phone Number. ( 910 ) 763-5100
For projects with multiple basins, specify which basin this worksheet applies to: 1
elevations
Basin Bottom Elevation 38.00 ft. (floor of the basin)
Permanent Pool Elevation 45.00 ft. (elevation of the orifice)
Temporary Pool Elevation 46.50 ft. (elevation of the discharge ,structure overflow)
areas
Permanent Pool Surface Area 4,060 sq.ft. (water surface area at the orifice elevation)
Drainage Area 1.97 ac. (on-site and off-site drainage to the basin)
Impervious Area 1.20 ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume 14,587 cu.ft. (combined volume of main basin and forebay)
Temporary Pool Volume 7 286 cu.ft. (volume detained above the permanent pool)
Forebay Volume 4,209 cu.ft. (approximately 20% of total volume)
Other parameters
SA/DA' 0.0245 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 1.00 in. (2 to 5 day temporary pool draw-down required)
Design Rainfall 1.00 in.
Design TSS Remova12 90 % (minimum 85% required)
Form SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
1. When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2. In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR DMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Appli is Initials
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
ZJ/� b. The forebay volume is approximately equal to 20% of the total basin volume.
V Y c. The temporary pool controls runoff from the design storm event.
�� d. The temporary pool draws down in 2 to 5 days.
I&L e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive now
calculations).
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
I. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
* Pump will be provided for maintenance or emergency
I11. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) ❑ does X does not incorporate a vegetated filter at the outlet.
This system (check one) ❑ does X does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall not be handled in a manner that will adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 5.25 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.25 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 45.00
17
Sediment R moval EI. 42.75 j5/o
-------�-- Sediment Removal Elevation 39.75 75%
Bottom evation 42.00 ------------------------------ "-'--------- '
Bottom Elevation 38.00 25°/
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent possible.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: Charles Duncan
Title: ZS(C C43;k
Address: 1908 Eastwood Road, Suite 319, Wilmington,NC 28403
Phone: [phone]
Signature:
Date: !)-//-oT
Note: The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and
a resident of the subdivision has been named the president.
I, Della C. Baird a Notary Public for the State of North Carolina County of Pender , do hereby
certify that Charles Duncan personally appeared before me this day of July , 2005 , and
acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my
hand and official seal, 1 ^0A^
30;�0
SEAL
My commission expires
Form SWU-102 Rev 3.99 Page 4 of 4

TRIPP ENGINEERING, P.C.
0 419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone]
August 24, 2005 R y CEIV-,1�1M
NCDENR AUG 9, b " uUo
Division Water Quality Sw 495OP4-
127 Cardinal Drive BY: 9K! —
Wilmington, NC 28405-3845
Attn: Mr. Paul Bartlett
Re: Duncan Marine—EXPRESS REVIEW
TE 05087
Dear Paul:
In response to your comments dated August 18, 2005, we offer the following:
1. A note stating "no wetlands exist on this site" has been added to the plans
and a copy of the letter justifying this note is enclosed.
2. The application has been corrected.
Please review for approval and contact us with any questions, comments or if
you need additional information. Thank you.
Sincerely,
Tripp Engineering, P.C.
J �-
Jonathan W. Ham, E.I.
JWH:dcb
Enc.

0B/23/2005 04:24 9102560175 DMCI PAGE 01
OB/23/2005 13:34 9104522899 SEGI PAGE 02
`joutkern Environmental Group, Inc.
4,511 rjouth College Koad,Su te.E, Wilmington,(\forth Carolina 2.8112
91o.45x.zy11 Fa* 910.+52.2,899 • office®scgi.us
wwW.bcgi.UO
August 23,200 5
Mr.Jim Hundley
vice President
Duncan Marine Contractors,lac.
1908 Eastwood Road,Suite 319
Wilmington,North Camlina 28403
RE: 2728 N.23`"Street
Dear Mr.Hundley:
This letter is in reference to your firm's property located at 2728 N. 23'Street,New Hanover
Coupty,North Carolina.
Per your request,a staff member with our firm visited the site with yuu of)August 22,2005 to
determine the current status of Department of the Army 404 Jurisdictional Wetlands. Our farm
employs skilled biologists and delineates wetlands utilizing soil,vegetative and hydrologic data
in accordance with the 1987 Corps of Engineers Wetland Delineation Manual(TR 87-1).
During this visit,the soils,vegetation and hydrology within the site were observed in regards to
potential Jurisdictional Wetlands. Based on the information gathered,it is our determination duct
the subject property does not contain any areas that meet Jurisdictional Wetland criteria.
If you should have any questions regarding this matter please do not hesitate to contact my office.
Thank you for your continued business.
Sincerely,
��EIV�D
David A. Syster
President DUG 2 20o8f
BY
AUG 23,2005 03:17P 9102560175 page 1

A, P. 1
* * * COMMUNICATION RESULT REPORT ( AUG.18.2005 12:20PM )
TTI NCDENR WIRO
FILE MODE OPTION RDDRESS (GROUP) n PAGE
---------------------------------------------------------------------------- -----------------
180 MEMORY TX 97635631 P. 3/3
----------------------------------------------------------------------------------------------------
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL E-2) BUSY
i
E-3) NO ANSWER E-4) NO FACSIMILE CONNECTION
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor William G. Ross, Jr., Secretary
FAX COVER SHEET
Date: 8/18/05 No. of Pages: 3 (Incl. Cover)
To: Jonathan Ham From: Paul Bartlett
Company: Tripp Eng. Water Quality Section - Stormwater
FAX#: [phone] FAX#: [phone]
Phone #: [phone]
DWQ Stormwater Project Number: SW8 050814
Project Name: Duncan Marine
MESSAGE:
Jonathan,
A Request for Additional Information is attached for the subject project. The original will
be mailed to Mr. Duncan, and a copy will be mailed to you.

A.
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor William G. Ross, Jr., Secretary
FAX COVER SHEET
Date: 8/18/05 No. of Pages: 3 (Incl. Cover)
To: Jonathan Ham From: Paul Bartlett .
Company: Tripp Eng. Water Quality Section - Stormwater
FAX #: [phone] FAX #: [phone]
Phone #: [phone]
DWQ Stormwater Project Number: SW8 050814
Project Name: Duncan Marine
MESSAGE:
Jonathan,
A Request for Additional Information is attached for the subject project. The original will
be mailed to Mr. Duncan, and a copy will be mailed to you.
ENB\ptb: S:\WQS\STORMWATERWDDINFO\2005\050814.aug05
127 Cardinal Drive Extension,Wilmington, NC 28405-3845 Telephone[phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer

W ATF9 Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
August 18, 2005
Mr. Charles Duncan, President
Duncan Marine Contractors, Inc.
1908 Eastwood Road, Suite 319
Wilmington, NC 28403
Subject: Request for Additional Information
Stormwater Project No. SW8 050814
Duncan Marine
New Hanover County
Dear Mr. Duncan:
The-Wilmington Regional Office received a Stormwater Management Permit Application for
Duncan'Marine on August 17, 2005. A preliminary review of that information has determined
that'fhe application is not complete. The following information is needed to continue the
torm water review:
6 1 . Please either delineate all wetlands on site, disturbed or undisturbed, or note on
g/ f the plans that none exist.
A 2. Please clarify the drainage area for the future, offsite allotment. Section 111.7 of
the application lists 0.75 acres and the drainage area difference between the two
columns of Section 111.6. is 0.68 acres. Please correct the application,
supplement, calculations, and drawings for both drainage area and impervious
area, as required.
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received by this Office prior to August 25, 2005, or the
application will be returned as incomplete. The return of a project will necessitate resubmittal of
all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information.
The construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone[phone] Customer Servicel-877-623-6748
Wilmington Regional Office Wilmington,INC 28405-3845 FAX [phone] Internet. h2o.enrstatemc.us e NorthCarolina
An Equal Opportunity/Affirmative Action Employer—50%Recycled110%Post Consumer Paper Natui-all y

Mr. Charles Duncan, President
August 18, 2005
Stormwater Application No. SW8 050814
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel free to call me
at [phone].
Sincer ly,
Paul T. Bartlett, P.E.
Environmental Engineer
ENB/ptb: S:\WQS\STORMWATER\ADDINFO\2005\050814.aug05
cc:, Jonathan W. Ham, Tripp Engineering, P.C.
Paul Bartlett
Page 2 of 2

Page 1 of 1
North Carolina
Elaine F. Marshall
DEPARTMENT OFTHE
Secretary SECRETARY OF STATE
a` Mrs PO Box 29622 Raleigh,NC 27626-0622 [phone]
Corporations Date: 8/18/2005
*Corporations Home
*Important Notice Click here to:
•Corporate Forms/Fees View Document Filings I
*Corporations FAQ Print apre-populated Annual Report Form I File an Annual Report i
OTobacco Manufacturers
•Dissolution Reports Corporation Names
*Non-Profit Reports
•Verify Certification
*Online Annual Reports Name Name Type
Links NC Duncan Marine Legal
*Secretary Of State Home Contractors, Inc.
*Register for E-Procurement Business Corporation Information
*Dept. of Revenue
Legislation SOSID: 0775465
01999 Senate Bills
92001 Bill Summaries FID:
*Annual Reports 1997 Status: Current-Active
*Corporations 1997
*Other Legislation Date Formed: 4/4/2005
Search Citizenship: Domestic
*By Corporate Name State of Inc.: INC
*For New Corporation
•By Registered Agent Duration: Perpetual
Online Orders Registered Agent
*Start An Order
ONew Payment Procedures
Contact Us Agent Name: Galleher, Earl P., III
*Corporations Division Registered Office Address: 1908 Eastwood Road, Suite 319
OSecretary of State's web site Wilmington NC 28403
Print Registered Mailing 1908 Eastwood Road, Suite 319
*Printable Page Address: Wilmington NC 28403
Principal Office Address: 1908 Eastwood Road, Suite 319
Wilmington NC 28403
Principal Mailing Address: 1908 Eastwood Road, Suite 319
Wilmington NC 28403
Stock
Class Shares No Par Value Par Value
Common 100000 Yes N/A
For questions or comments about the North Carolina Secretary of State's web site, please send e-mail to Webmaster.
http://www.secretary.state.nc.us/Corporations/Corp.aspx?Pitemld=7724368 8/18/2005

SOSID: 0775465
Date Filed:4/4/2005 3:14:00 PM
Stale of North Carolina Elaine F.Marshall
Department of the Secretary of Stale North Carolina Secretary of State
C200509400485
ARTICLES OF INCORPORATION
Pursuant to §55-2-02 of the General Statutes of North Carolina, the undersigned does hereby submit these Articles of
Incorporation for the purpose of forming a business corporation.
l. The name of the corporation is: n mran Marinr Contractors Inc
2. The number of shares the corporation is authorized to issue is: 100,000
3. These shares shall be: (check either a or b)
a. Er all of one class, designated as common stock; or
b. divided into classes or series within a class as provided in the attached schedule,
with the information required by N.C.G.S. Section 55-6-01.
4. The street address and county of the initial registered office of the corporation is:
Number and Street 1908 Eastwood Road, Suite 31.9
City Wilmington State NC Zip Code 28403 County New Hanover
5. The mailing address,if different from the street address, of the initial registered office is:
Number and Street 1908 Eastwood Road, Suite 319
City Wilmingon State NC Zip Code 28403 County New Hanover
6. The name of the initial registered agent is: Earl P. Galleher, III
7. Principal office information: (must select either a or b.)
a. d The corporation has a principal office.
The street address and county of the principal office of the corporation is:
Number and Street 1908 Eastwood Road, Suite 319
City Wilmington State NC Zip Code 28403 County New Hanover
The mailing address, if different front the street address, of the principal office of the corporation is:
Number and Street
City State Zip Code County
b. ❑ The corporation does not have a principal office.
CORPORATIONS DIVISION P.O. BOX 29622 RALEIGH,NC 27626-0622
(Revised January, 2002) (Form B-01)

8. No other provisions, for the corporation are elected to be included.
9. The name and address of each incorporator is as follows:
Geoffrey A. Losee, Rountree, Losee & Baldwin, LLP, Post Office Box 1409, Wilmington,NC 28402-1409
10. These articles will be effective upon filing, unless a date and/or time is specified:
This the ay of April 005
ignatu
Geoffre e Incor or
ype or Print Name and Title
NOTES:
1. Filing fee is$125. This document must be filed with the Secretary of State.
Instructions for Filing
CORPORATIONS DIVISION P.O. BOX 29622 RALEIGH,NC 27626.0622
(Revised January, 2002) (Form B-01)

TRII'P ENGINEERING, P.C.
0 419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone]
August 15, 2005
NCDENR
Division Water Quality
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Mr. Paul Bartlett
Re: Duncan Marine—EXPRESS REVIEW
TE 05087
Dear Paul:
In response to our July 26, 2005 pre-application meeting with Mr. Gordon, we
offer the following:
1. A note about the wetlands onsite has been added to the plan.
2. A roof drain note has been added to the plan.
3. The word"modification" has been changed to "revision" on the plan.
4. The offsite area has been changed to "future allotment" area on the application.
5. As per an email received on August 12, 2005, Duncan Marine Contractors Inc.
has provided information from the Secretary of State's office showing that Mr.
Duncan is the signing official.
Please review for approval and contact us with any questions, comments or if you
need additional information. Thank you.
Sincerely,
Tripp En ineering, P.C.
Jonathan W. Ham, E.I.
JWH:dcb
Enc.
RECEIVED
AUG 1 7 2005
3Y ��8_►4

uw u.. —u ,,,.—.,
•p .FloaLlino
•MaAws •Floaring Docks '
•elulkheses ( •pllings
•eepain _ DUNCAN Haas.Fllings
•D�ging MARINE "'I"
CONTRACTORS. INC.
1909 Eaetwood Road,9uFte 319•WI1mington,NC 29403
phone.910_256_6620•Fs•u 910.258-OM•Email:InfoaMuncanmarinecontrJctore•com
[VIA FAX]
August 10, 2005
To Whom it May Concern:
In reference to Duncan Marine Contractors Incorporated. Tax ID #202650048, Charles
H. Duncan serves as president of the corporation and he is a signing authority for the
corporation along with Earl Galleher.
Please contact Earl Galleher with any questions at 910.520.5466 or by email at
oal leher�duncanmarinei nc.com
Sin errely,
Earl Ga eher AUG l 7 2005 /
Vice Pr sldent -Sw6
Duncan Marine Contractors, Inc. BY: _�-=—
AUG 16,2005 03:05P 9102560175 page 2

TRwp ENGINEERING, P.C.
0 419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone]
August 8, 2005 /�L
i.S�
NCDENR � ��/ �t a
Division Water Quality _ It
Fe 127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Mr. Cameron Weaver
Re: Duncan Marine—EXPRESS REVIEW
New Hanover County, NC
TE 05087
Dear Linda:
Enclosed please find two (2) sets of plans, one (1) signed original and one (1)
copy of the application form with narrative, one (1) wet detention basin supplement, two
(2) sets of calculations and one check for the express review fee.
Please review for approval and contact us with any questions or comments.
`thank you.
Sincerely,
Tripp Engineering, P.C.5
Z2�jJ
�
�EIVED
Jonathan�WHam �St7
JWH:dcb
Enc.
Y
4

08/03/05 TE05087
Stormwater Narrative
Duncan Marine
New Hanover County, NC
Duncan Marine is a 1.224-acre existing vacant tract proposed for a commercial warehouse
complex. The area of disturbance for this project is 1.29 acres including the driveway and outfall
pipe from the detention pond. Impervious areas include 4,000 SF of office and warehouse area,
200 SF of sidewalk and 23,705 SF of gravel, creating a total lot impervious area of 27,905 SF.
The pond is calculated to handle 24,503 SF of offsite impervious area, bringing the total
impervious area that the pond handles up to 52,408 SF.
The project will be treated by wet detention. The detention pond will be designed to meet the
County's 2-year, 10-year, and 25-year pre-post requirement. Outflow from the pond drains to
Smith Creek, classification C-SW.
CEIVED
AUG A 2005
swe d �4
BY:

VN2005 Duncan Marine 05087
JWH Stormwater Calculations
Total Drainage Area
sq.ft. acres
85,987 1.97
Impervious Area
Land Use sq.ft. acres
buildings 4,000 0.09 %impervious= 0.609
parking/asphalt 23,705 0.54 = 60.9%
sidewalks 200 0.00 say 61.0%
Cffsite Future 24.503 0.56
Total 52.408 1.20
Stormwater Calculations:
CPRE- 0.25
Time of Concentration: CPosT= (%imp.)(.95)+(1-%imp.)(.25)
Hydraulic Length(L)= 440 ft. = 0.68
change in Height(H)= 10 ft. It= 5.88 in/hr
Tc = (L'/H)`/128 is= 7.23 in/hr
3.64 min.
Flow for 10 year,6 hour Storm(0,0):
Flow for 2 year,6 hour Storm(0): OPRE_ (CPRE)x(I25)x(Area)
OPRE_ (CPRE)x(110)x(Area) = 3.57 cfs
= 2.90 cfs OPOST= (CPosT)x(I25)x(Area)
CPosT= (CPosT)x(110)x(Area) = 9.70 cfs
7.89 cfs
Soil Storage Capacity for 10 ear Storm:
Sail Storage Capacity for 2 year Storm: CN= (98)(%imp.)+(60)(1-%imp.)
CN= (98)(%imp.)+(60)(1-%imp.) = 84
= 84 P= 4.82 in. for 10yr,6 hrstorm
P= 3.30 in, for2yr,6 hr storm S= 1000/CN-10
S= 1000/CN-10 = 1.90
1.90 Depth(D)= [P-(0.2)(S)]t/[P+(0.8)(S)]
Depth(D)= [P-(0.2)(S)]'/[P+(0.8)(S)] - 3.11 in.
1.77 in.
Time to Peak Flow:
Time to Peak Flow: TP= [(43.5)(D)(Area)]/On,Pom
TP= [(43.5)(D)(Area)]/OZ,POST = 27.48 min.
19.22 min.
Detention Pond Design: State Surface Area Requirement at normalpool:
Pond side slopes= 3 :1
Pond Size: Depth below N.P.= 7 ft.
Elevation Surface Area -SA/DA= 0.0245
R. (sq.ft.) (Chan for 90%TSS Removal for Wet Detention
Normal Pool 45.00 4,060 Pond without Vegetative Filter)
Flood Pool 46.50 5,655 Required SA= (SA/DA)x(Total Drainage Area)
To of Bank 50.50 10,749 - 2.107 s .ft.
Bottom of Pool 38.00 108
State Volume Required for Storage of first 1"of runoff:
Provided Storage Volume: Rv= .05+,009(%imp)
Vol._ [(Normal pool SA+Flood Pool SA)/21 = 0,598531
x(F.P,elev.-N.P.elev.) V= (Design rainfall)(Rv)(Drainage Area)
= 7,286 cu.ft. �1111111/// = 4,289 cu.ft.
.��� O N C-4, o",
OQ pFESgI0 %
Rr� Tel 4 ;=4 17EAL
374 r Y
AUG
0.° 5��
BY: ------`
� SS,05087pand 1 of 2 or?,
r,'

8/32005 Duncan Marine 05087
JWH Stormwater Calculations
Pond Volume:
Bottom SA= 108 sq.ft.
Normal Pool SA= 4,060 sq.ft.
Vol._ [(N.P.SA+Bottom SA)/21 x(N.P.el.-Bottom el.)
14,587 cu.ft.
Forebav:
Required Volume Provided Volume
Vol.= 20%of storage volume Bottom SA= 448 sq,ft.
2,917 cu.ft. Normal Pool SA= 1,656 sq.ft.
Vol._ [(N.P.SA+Bottom SA)/2]x(N.P.el.-Bottom el.)
4,209 cu.ft.
Outlet Structure Design:
Flow for 2-day dmwdown: Flow for 5-day drawdown:
for 1st 1"of stormwater, for 1st 1"of stormwater,
Q= Required Vol.1172,800 sec.(2-days) Q= Required Vol./432,000 sec.(5-days)
0.025 cfs = 0.010 cfs
Required Area of Pipe for 2-day drawdown: Required Area of Pipe for 5-day drawdown:
A= Q/[Cdx SQRT(2xgxh)] A= Q/[Cdx SQRT(2xgxh)]
Cd= 0.6 Cd= 0.6
g= 32.2 ft./s' g= -32.2 ft./s'
h= (F.P.elev:N.P.elev.)/2 h= (F.P.elev.-N.P.elev.)/2
0.75 ft. - 0.75 ft.
A= 0.0060 sq.ft. A= 0.0024 sq.ft.
Diameter of Pipe for 2-day drawdown: Diameter of Pipe for 5-daydrawdown:
DIA.= SQRT[(A x 4)/pi] OIA.= SQRT[(A x 4)/pi]
0.0871 ft. = 0.0551 R.
1.04 in. - 0.66 in.
'Use:1.00 in diameter pipe
Outlet Structure Check:
Using a 4'x 4'Basin,
Perimeter U= 16 ft.
Q= CIA
C= (%imp.)(.95)+(1-%imp.)(.25)
0.68
I= 7.23 in.for a 25 yr.Storm
A= 1.97 Acres
9.70 cfs
Q= Cwx L x H'
H= [Q/(Cw x L)]v°
Cw= 3
0.34 ft.
Peak elevation= Flood pool elevation+H
46.84 ft.
05087pond 2 of 2

AUG 04,2005 08:55A Tripp Engineering 9107635631 page 2
d�16e C)
NCDENR
• North Carolina Department of Environment and Natural Resources
127 Cardinal Drive Extension,Wilmington, NC 28405 [phone] FAX[phone]
Request for Express Permit Review
FILL-IN all information below and CHECK required Permlt(s).
FAX to Cameron Weaver along with a narrative and vicinity map of the project location.
Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made.
APPLICANT Name Charles Duncan
Company Duncan Marine
Address_ 1908 Eastwood Rd Suite 319 City/Slate Wi_ Iminolon NC Zip 28403._County New Hanover
Phone [phone] Fax Email
PROJECT Name Duncan Marine
ENGINEERICONSULTANT Phillip Tripp -
Company Tripp Enclineerina
Address 419 Chestnut Street City/State
_Wilmington NC zip_28401 County-.New Hanover
Phone [phone] ,_Fax [phone] EmaiLr.-tr
jop en r�ec.rr.com
u
- - - - - - - - ----------- ___ _
❑ STREAM ORIGINATION CERTIFICATION ` `h Z --�
.. .---- --------------------- ------------••--------------- - - ___ -- -
® STORMWATER ❑ Low Density ® High Density-Detention Pond —High—Density-Other
❑ Low Density-Curb&Gutter ❑ High Density-Infiltration ❑ Off Site
... --------- •------•---------------------- -----••----------- -
- ------------- " -- ---
❑ COASTAL ❑ Excavation & Fill ❑ Bridges& Culverts ❑ Structures Information
MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
-----------_---------------"--------------"•-----"---------....-----------"-"-------------------------------------------------------- ....................-...
❑ LAND QUALITY ❑ Erosion and Sedimentation Control Plan with acres to be disturbed.
------........- - -
❑ WETLANDS (401) ❑ No Wetlands on Site (letter from COE) ❑Wetlands Delineated/No JD
❑ Greater than 0.1 AC Wetlands Impacted ❑Jurisdictional Determination has been done
❑ Less than 0.1 AC Wetlands Impacted []Greater than 0.5 AC Wetlands Impacted
-- --------------------"- ------------------------------------------------•"------------"------------------------------------------------------- ..............
The legislation allows additional fees, not to exceed 50%of the original Express Review permit application
fee, to be charged for subsequent reviews due to the insufficiency of the permit applications,
For DENR use only
SUBMITTAL DATES: Fee Split for multiple permits:
SW_.. $
CAMA $
LOS _ $
401 $_
Total Fee Amount $

AUG 04,2005 08:56A Tripp Engineering 9107635631 page 3'�
08/03/05 TE05087
Stormwater Narrative
Duncan Marine
New Hanover County, NC
Duncan Marine is a 1.224-acre existing vacant tract proposed for a commercial warehouse
complex. The area of-disturbance for this project is 1.29 acres including the driveway and outfall
pipe from the detention pond. Impervious areas include 4,000 SY of office and warehouse area,
200 SF of sidewalk and 23,705 SF of gravel, creating a total lot impervious area of 27.905 SF.
The pond is calculated to handle 24,503 SF of offsite impervious area, bringing the total
impervious area that the pond handles up to 52,408 SF.
The project will be treated by wet detention. The detention pond will be designed to meet the
County's 2-year, 10-year, and 25-year pre-post requirement. Outflow from the pond drains to
Smith Creek, classification C-SW.

`AUG 04,2005 08:56A Tripp Engineering 9107635631 page 4
O +
J
S I TE-Z,
� m
vJ
/ J
VICINITY MAP
NTS

®� AUG 04,2005 08:55A Tripp Engineering 9107635631 page 11,
en
1%
N Job No. OSO $7
0 Date:_. �S
TRIPP ENGINEERING, P.C.
419 Chestnut Street, Wilmingtun, NC 28401
Phone: [phone] • FAX: [phone]
Email: ([e-mail]
LETTER OF TRANSMITTAL
To: NCDENR
Attention: Cameron Weaver
Subject: Request for Express Permit Review - Duncan Marine
__X . FAX TRANSMITTAL: NUMBER OF PAGES INCLUDES COVER 4
I am sending you: ( X ) ATTACHED ( ) UNDER SEPARATE COVER
( ) Prints ( ) Tracings ( ) Copy of letter ( ) Specifications (X ) Other
Copies _ Item No Description
1 Request for Express Permit Review
1 Stormwater Narrative _
1 ViciniN Mao
These are transmitted as checked below:
( ) For Approval ( ) For Your Use ( ) Sign & Return ( ) Review
Remarks: Please let us know the date and time for the review.
cc:
Signed: �/ • _

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http://www.topozone.com/print.asp?z=18&n=3795962.7759505&e=230824.995230408&s... 8/18/2005