SW8010127_Historical File_20010302

". State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Division of Water Quality
Mr. Arthur L. Howard, Owner
9029 St. Stephens Place
Wilmington, NC 28412
Dear Mr. Howard:
•_..r•.._.�rIlk
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
March 2, 2001
Subject: Permit No. SW8 010127
Arthur Howard Site
High Density Stormwater Project
New Hanover County
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Arthur
Howard Site on March 1, 2001. 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 010127 dated March 2, 2001, for the construction of Arthur Howard Site.
This permit shall be effective from the date of issuance until March 2, 2011, 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 Scott Vinson, or
me at [phone].
Sincerely,
L V-_
Rick Shiver
Water Quality Regional Supervisor
RSS/sav: S:1WQSISTORMWATIPERMIT\010127.MAR
cc: Phil Tripp, P.E.
Tony Roberts, New Hanover County Inspections
Beth Easley, New Hanover County Engineering
Scott Vinson
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-conbumer paper

State Stormwater Management Systems
Permit No. SW8 010127
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
Arthur L. Howard
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 stonnwater 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 March 2, 2011 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 on page
3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from
93,371 square feet of impervious area.
Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per
approved plans.
The runoff from all onsite and offsite built -upon area permitted with this project must be directed into the
permitted stormwater control system.
2

State Stormwater Management Systems
Permit No. SW8 010127
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Name of Receiving Stream/Index #:
Classification of Water Body:
If Class SA, chloride sampling results:
Pond Depth, feet:
Permanent Pool Elevation, FMSL:
Drainage Area, acres:
Total Impervious Surfaces, ft2:
Offsite Area entering Pond, ft2:
Required Surface Area, ft2:
Provided Surface Area, ft2:
Required Storage Volume, ft3: ,
Provided Storage Volume, ft3:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
HVISION OF WATER QUALITY
ROJECT DESIGN DATA SHEET
Arthur Howard Site
SW8 010127
New Hanover County
Mr. Arthur L. Howard, Owner
Arthur L. Howard
9029 St. Stephens Place
Wilmington, NC 28412
March 1, 2001
Cape Fear River / CFR 18-71
"SC It
n/a
7.50
14.50
3.15
93,371
none, per Engineer
3,049
4,054
7,575
10,143
16.50
1.25" 4) pipe
3

State Stonnwater Management Systems
Pemiit No. SW8 010127
I1. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in it's 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 side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel
of DWQ. The records will indicate the date, activity, name of person performing the work and what actions
were taken.
5. Decorative spray fountains will not be allowed in the stormwater treatment system.
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.
8. If the stormwater system was used as an Erosion Control devi ce, it must be restored to design condition prior
to operation as a stormwater treatment device, and prior to occupancy of the facility.
A modification must be permitted prior to any construction. The following items will require a modification
to the permit. The Director may determine that other revisions to the project should require a modification
to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale ofthe project area. The project area is defined as all property
owned by the permittee, for which Sedimentation and Erosion Control Plan approval was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
10. 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.
4

• State Storniwater Management Systems
Permit No. SW8 010127
11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the
approved plans, prior to construction. If the proposed BUA exceeds the pemitted amount, a modification
to the permit must be submitted and approved prior to construction.
12. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted'oy the sale
of any portion of the property.
13. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable
built -upon area.
14. 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.
15. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days
I1I. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there
is a name change of the Permittee, a formal permit request must be submitted to the Division of Water
Quality accompanied by an application fee, 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.
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)
which have 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 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.
Permit issued this the 2nd day of March, 2001.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 010127
k

State Stormwater Management Systems'
Permit No. SW8 010127
Arthur Howard Site
Stormwater Permit No. SW8 010127
New Hanover County
Designer's Certification
1, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of
the project,
ect)
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:
Signature
Registration Number
Date
SEAL
R

in
State Stormwater Management Systems
Permit No. SW8 010127
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
?. The drainage area to the system contains no more than the permitted amount of built -upon area.
3. All the built -upon area associated with the proj ect is graded such that the runoff drains to the system.
4. The outletibypass structure elevations are per the approved plan.
.5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
14. The overall dimensions of the system, as shown on the approved plans, are provided.
cc: NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspector
7

k
M1
X
Date Received Fee Paid Permit Number
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
Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Arthur L. Howard
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Arthur L. Howard Owner
3. Mailing Address for person listed in item 2 above:
9029 St. Stephens Place
City: Wilmington State: NC Zip: 28412
Telephone Number: 910-343-5600
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Arthur Howard Site
5. Location of Project (street address):
Sunnyvale Drive
City: Wilmineton County: New Hanover
6. Directions to project (from nearest major intersection):
approx. 2501f west from the intersection of SR 1236 and SR 1100
7. Latitude : N 34°10'15" Longitude: W 77°57'00" of project
8. Contact person who can answer questions about the project:
Name: Phillip G. Tri Telephone Number: 910-763-5100
II. PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4

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 X 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 detention pond
2. Stormwater runoff from this project drains to the Cane Fear River basin.
3. Total Project Area: 3.15 acres
How many drainage basins does the project have? 1
4. Project Built Upon Area: 68.0 %.
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.
301
._, ' ..% v.} \-W.. ,'*•4 v .: _
4
Receiving Stream Name
Unnamed trib. toCape Fear River
Receiving Stream Class
SA
Drainage Basin Area
137,214 sf
Existing Impervious * Area
0
Proposed Impervious * Area
93,371 sf
% Impervious* Area (total)
75.8%
On -site Buildings
33,800 sf
On -site Streets
0
On -site Parking
57,871 sf
On -site Sidewalks
1700 sf
Other on -site
0
Off -site
0
--
Total:
E=93,371 sf
E_
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 4

7. How was the oil site impervious area listed above derived? NA
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded fcr 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.
I. 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 - squarefeet ofany 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
declang or the water surface ofswimming 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.
5. All permitted runofJfrom 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 t M-P specified for this project. Contact the Stormwater and General Permits Unit at [phone] for
the status and availability of these forms.
Form SWU-102
Form SWU-103
Form SWU-104
Form SWU-105
Form SWU-106
Form SWU-107
Form SWU-108
Form SWU-109
Wet Detention Basin Supplement
Infiltration Basin Supplement
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Underground Infiltration Trench Supplement
Neuse River Basin Supplement
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4

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.
1. Please indicate that you have provided the following required information by initialing in the space
provided next to each item.
Appli 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)
• Detailed narrative description of stormwater treatment/management
• 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 stonnwater 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)
VII. 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): Trine Engineering. P.C.
Mailing Address: 419 Chestnut Street
City: Wilmington State: NC Zip: 28401
Phone: [phone] Fax: [phone]
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) Arthur L. Howard
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 211.1000.
Signature: G i �: Date: AA -3/'�%G
Form SWU-101 Version 3.99 Page 4 of 4

State Stormwater Management Systems
Permit No. SW8 010127
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NA T URAL 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
Arthur L. Howard
New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC
2H A 000 (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 apart of this permit.
This permit shall be effective from the date of issuance until March 2, 2011 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 on page
3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from
93,371 square feet of impervious area.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per
approved plans.
5. The runoff from all onsite and offsite built -upon area permitted with this project must be directed into the
permitted stormwater control system.
2

State Stormwater Management Systems
Permit No. SW8 010127
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Arthur Howard Site
Permit Number:
SW8 010127
Location:
New Hanover County
Applicant:
Mr. Arthur L. Howard, Owner
Mailing Address:
Arthur L. Howard
9029 St. Stephens Place
Wilmington, NC 28412
Application Date:
March 1, 2001
Name of Receiving Stream/Index #:
Cape Fear River / CFR 18-71
Classification of Water Body:
"SC "
If Class SA, chloride sampling results:
n/a
Pond Depth, feet:
7.50
Permanent Pool Elevation, FMSL:
14.50
Drainage Area, acres:
3.15
Total Impervious Surfaces, ft2:
93,371
Offsite Area entering Pond, ft2:
none, per Engineer
Required Surface Area, ft2:
3,049
Provided Surface Area, ft2:
4,054
Required Storage Volume, ft3:
7,575
Provided Storage Volume, ft3:
10,143
Temporary Storage Elevation, FMSL:
16.50
Controlling Orifice:
1.25" 4 pipe
3

State Stormwater Management Systems
Permit No. SW8 010127
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in it's entirety, vegetated and operational for its
intended use prior to the construction of any built -upon surface.
2. During construction, erosion stall 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 side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel
of DWQ. The records will indicate the date, activity, name of person performing the work and what actions
were taken.
5. Decorative spray fountains will not be allowed in the stormwater treatment system.
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.
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. A modification must be permitted prior to any construction. The following items will require a modification
to the permit. The Director may determine that other revisions to the project should require a modification
to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale of the project area. The proj ect area is defined as all property
owned by the permittee, for which Sedimentation and Erosion Control Plan approval was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
10. 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.
4

State Stormwater Management Systems
Permit No. SW8 010127
11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the
approved plans, prior to construction. If the proposed BUA exceeds the pemitted amount, a modification
to the permit must be submitted and approved prior to construction.
12. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
13. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable
built -upon area.
14. 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.
15. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days.
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there
is a name change of the Permittee, a formal permit request must be submitted to the Division of Water
Quality accompanied by an application fee, documentation from the parties involved, and other supporting
materials as may be appropriate. The approval of this request will be considered on itskmerits and may or
may not be approved.
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)
which have 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 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.
Permit issued this the 2nd day of March, 2001.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 010127
67

Maintenance activities shall be performed as follows:
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 _5.625 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 14.5
Sediment Ikmoval EL 12.25
4;a
------Sediment Removal Elevation 8.875in.Bottomtion 11.5 %-----------------------------------
------------
Bottom Elevation 7.0
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: Arthur L. Howard
Title: Owner
Address: 9029 St. Stephens Place, Wilmington, NC 28412
Phone:
Signatu
Date: /D - 3 /- OL
Note: The legally responsible parry 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, Monica V. Loughlin , a Notary Public for the State of North Carolina
County of New Hanover , do hereby certify that Arthur L. Howard
personally appeared before me this day of 2�000_, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
V .Lpj�� �
'ci
�. IsUBL%
kojZT:\I
My commission expires 08/07/01
Form SWU-102 Rev 3.99 Page 4 of 4

1122/01
CDC
Arthur Howard Site
Stormwater Calculations
Drainage Area
a . R. I acres
proposeddevelopment 1 137,214 1 3.15
Total 1 137,214 1 3.15
% Impervious = 0.680
= 68.0%
I Use 68.0% I
Stormwater Calculations:
Time of Concentration:
Hydraulic Length (L) = 1500 It.
change in Height (H) = 6.4 ft.
To = (Ls /H).a,ro / 128
17.82 min.
Flow for 10 year, 6 hour Storm (070):
QPRE (CPRE) x (11o) x (Area)
= 4.96 cis
QPOsr = (CPosT) x (110) x (Area)
14.49 cis
LqU E
P - 4.80 In. for 10 yr, 6 hr storm
S = 1000/CN -10
= 1.63
Depth (D)= [P-(0.2)(S)]2I jP+(0.8)(S)]
= 3.28 in.
Time to Peak Flow:
Tp = [(43.5)(D)(Area)] / Q10,POsr
31.03 min.
Detention Pond Design:
Pond Size -
Elevation
Surface Area
ft.
Normal Pool
14.50
4,054
State Flood Pool
18.50
8,089
City Flood Pool
18.60
8,649
Too of Bank
20.00
10,355
Bottom of Pool
7.00
262
Total Provided City Storage Volume:
Vol. = [(Normal pool SA+ Flood Pool SA) / 21
x (F.P. elev. - N.P. elev.)
26,041 cu. ft.
City Storage Required for 10 vear Storm:
Tp = Vol. / (1.39)(Qp)
Vol. = (TP)(1.39)(Qp)(60 sec.)
QP - Q1o,Posr - Qmpm
= 9.53 ofs
Vol. = 24,653 cu. ft.
Im rvious Area
Land Usesq.
R.
acres
Buildings
33,800
0.78
Asphalt Parking
57,871
1.33
Concrete
1,700
0.04
0
0.00
Total
93,371
2.14
CPRE = 0.25
CPOST = imp.)(.95)+(1-% imp.)(.25)
0.73
I10 = 6.30 irk/hr
c�,� ,!s
�'
so = 7.79 in/hr
���,
Q< �� l
Flow for 50 year, 6 hour Storm (Q�:
% , °\ pC
QPRE _ (CPRE) x (150) X (Area)
6.13 cis
:f� \� 'q�!:
QPosr(CPosT7 Dx (Area)
�''�'��L I... �`N.
911
!!!►nnllale\
Soil Storage Capacity for 50 year Storm:
CN = (98)(% imp.) + (80)(1-% imp.)
= 86
P = 6.42 in. for 50 yr, 6 hr o
So 1000/CN -10
= 1.63
Depth (D)• [P-(0.2)(S)]2 / [P+(0.8)(S)]
Time to Peak Flow:
Tp = 1(43•5)(D)(Ama)l / QSo,POST
= 36.79 min.
N.P.
(Chart for 90% TSS Removal for Wet Detention
Required SA = (SA/DA) x (Total Drainage Area)
State Volume Requirement for Storage of first 1" of runoff:
Vol. = 1(1/12) x (DA) x (% imp.)] +
[(1/12) x (QA) x (1-% imp.) x C]
C = 0.2
= 8,512 cu. ft.
Provided Storage Volume for StateRequirement:
State Vol. = 10,143 cu. ft-
City Storage Required for 50 veer Storm:
Tp = Vol. / (1.39)(0P)
Vol. _ (TOO.39)(Qp)(60 sec.)
OP = CiWROST - QW,PRE
11.78 cis
Vol. = 36,141 cu. R.
CltyPOND 1 of 2

1/22101
CDC
Arthur Howard Site
Stonnwater Calculations
Forebav:
Required Volume Provided Volume
Vol. = 20% of pond storage volume Bottom Pool SA = 334 sq. ft.
3,237 cu. ft. Normal Pool SA - 1,638 s _ ft.
Vol. _ [(N.P. SA + F.P. SA) / 21 x (F.P. al. - N.P. et.)
2,958 cu..ft.
depth = 3 ft.
Outlet Structure Design:
Flow for 2-day drawdown:
for 1st V of storrnwater,
Q = Required State Vol. / 172,800 sec, (2-days)
0.049 cis
Required Area of Pipe for 2-day drawdown:
A- Q/ [Cd x SQRT(2 x g x h)]
Cd = 0.6
g = 32.2 ft./s'
h - (F.P. elev: N.P. elev.) /2
= 1 ft.
Am 0.0102 sq. ft.
Diameter of Pipe for 2-day drawdown:
I DIA. = SQRT[(A x 4) / pi]
0.1141 ft.
= 1.37 in.
. USE 1.25r ORIFICE
Outlet Structure Check:
Using a W x V Basin,
Perimeter = 16 ft.
Q = CIA
C = (% imp.)(.95) + (1-% imp.)(.25)
0.73
1= 6.30 in. for a 10 yr. Storm
A = 3.15 Acres
14.49 cis
Q= CwxtxH"5
H - [Q / (Cw x L)IM
Cw = 3
0.45 ft.
Peak elevation = flood pool elevation + H
= 19.05 ft.
Flow for 5-day drawdown:
for 1 st 1" of stormwater,
Q - Required State Vol. / 432,000 sec. (5-days)
= 0.020 Ofs
Required Area of Pipe for 5-day drawdown:
A= Q/ [Cd x SQRT(2 x g x h)]
Cd = 0.6
g = 32.2 ft./s'
h = (F.P. slev. - N.P. elev.) / 2
A = 0.0041 sq. ft.
Diameter of Pipe for 5-day drawdown:
DIA. = SQRT[(A x 4) / pi]
0.0722 ft.
0.87 in.
CityPOND 2 of 2

TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone]
JAN 23 2001
January 22, 2001
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Arthur Howard Site
City of Wilmington, NC
TE 00098
Dear Linda:
80'/a / D7
Enclosed please find two (2) sets of plans, two (2) sets of calculations, one (1)
signed original and one (1) copy of the application form with narrative, one (1) wet
detention basin supplement, and one check for the application fee.
Please review for approval and contact us with any questions or comments.
Thank you.
Sincerely,
Tripp Engineering, P.C.
Monica V. Loughlin
Enc.

January 22, 2001
Stormwater Narrative
Arthur Howard Site
City of Wilmington, New Hanover County, NC
TE 00098
The total drainage area of this project is 3.15 acres. Three (3) buildings totaling 33,800 sf,
a 57,871 sf asphalt access and parking area and 1700 sf of concrete sidewalk will be
constructed. The total built upon area is 68.0% impervious.
Stormwater runoff will be handled by a wet detention pond designed to exceed the state's
requirement of the first one inch of runoff. This pond will drain to an unnamed tributary
to the Cape Fear River with a classification of SA. A vegetated filter is not required due
to the 90% TSS removal used in the wet detention design.

TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone]
February 28, 2001
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Mr. Scott Vinson
Re: Arthur Howard Site
SW8 010127
New Hanover County, NC
TE 00098
Dear Scott:
MAR Oi 2001
WIR f ii w t
In response to your correspondence dated February 26, 2001, we offer the
following:
1. Bottom elevation for the pond has been revised.
2. A note that no wetlands exist on site has been added.
Please review for approval and contact us with any questions or comments.
Thank you.
Sincerely,
Tripp Engineering, P.C.
Charles D. Cazier, E.
CDC:dcb
Enc.
01

* * * COMMUNICATION RESULT REPORT ( FEB.26.2661 3:56PM )
P. 1
FILE MODE OPTION
---------------------------
768 MEMORY TX
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
TTI NCDENR WIRO
ADDRESS (GROUP) R T -PAGE
---------------------------- - - ---- -- --- - ------
9-7635631 OK P. 1i1
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
North Carolina
' Department Of Environment and Natural ]Resources
Division of Water Quality
Wilmington Regional O#iice
Michael F. ]Uslcy, Governor
Willifun G. Ross, Jr., Secretary
FAX COVER SHEET
Date: February 26, 2001
To: Phil Tripp, P,E,
Company, Tripp Engineering
FAX #: [phone]
DWQ Storinwater Project Number: SWS'010127
Project Name: Arthur Howard Site
MESSAGE:
Phil,
- A�7�4 r1724
I L v
NCDErNR
NC TI C'AROWNA D0,AFrrMgNT OR
ENVIRONMMW AND NAMRAI. RCSOURCES
No. of Pages: 1
From: Scott Vinson
star Quality Sec ' In
- Stormwater
F - 64
Phone # 910-395,3900
Please submit the following information to continue the review of the above mentioned pm'ect;
1. Please correct the bottom elevation on sheet C 1 for the �
needs to hi-. nlionov-A .- � A - . .. pond, it Cl]ri'Ently raadc 7 Sn .,....i

North Carolina
Department of Environment and Natural Resources
Division of Water Quality
Wilmington Regional Office
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
FAX COVER SHEET
Date: February 26, 2001
To: Phil Tripp, P.E.
Company: Tripp Engineering
FAX #: [phone]
DWQ Stormwater Project Number: SW8 010127
Project Name: Arthur Howard Site
MESSAGE:
Phil,
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
No. of Pages: 1
From: Scott Vinson
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
Please submit the following information to continue the review of the above mentioned project:
Please correct the bottom elevation on sheet C 1 for the pond. It currently reads 7.50 and
needs to be changed to 7.0 as in the calculations.
2. Delineate all wetlands on site or note that there are none.
S:\WQS\STORMWAT\ADDINFO\010127.FEB
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper