SW8910403_Historical File_20060809

• kr,F
Q Michael F.Daley,Governor
William G.Ross Jr.,Secretary
r North Carolina Department of Environment and Nitural Resources
O Alan W.Klimek.P.E.Director
Division of Water Quality
August 9, 2006
Mr. Paul Parker, Asst. County Manager
Pender County
108 S. Cowan Street
Burgaw, NC 28425
Subject: Stormwater Permit No. SW8 910403 Mod.
Pender County Government Complex
High Density Project
Pender County
Dear Mr. Parker:
The Wilmin.9ton Regional Office received a complete modified Stormwater Management
Permit Application for the Pender County Government Complex on August 3, 2006. 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 910403 dated August 9, 2006, for the construction of the subject
project.
This permit shall be effective from the date of issuance until August 9, 2016, and shall be
subiect to the conditions and limitations as snecified 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 sixty (60) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150E 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 Linda Lewis, or me at [phone].
Sincer ; µ
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/arl: S:IWQSISTORMWATIPERMIT1910403Mod.aug06
cc: Mark Walton, P.E., Walton Engineering
Pender County Building Inspections
Linda Lewis
Wilmington Regional Office D Carolina
Central Files AWArrally
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington,NC 28405 Phone[phone] Customer Service
Wilmington Regional Office Internet: www.ncwateraualitv.org Fax [phone]
An Equal Opportunity/Aftimtailve Action Employer—50%Recycledll0%Post consumer Paper

State Stormwater Management Systems
Permit No. SW8 910403 Modification
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
Pender County
Pender County Government Complex
801 S. Walker Street, Burgaw, Pender County
FOR THE
construction, operation and maintenance of 2 wet detention ponds 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 9, 2016, 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
controls 1, 2 and 3 have Peen designed to handle the runoff from 102,164 ft2,
41,049 ft and 174,460 ft , of impervious area, respectively.
3. The tract will be limited to the amount of built-upon area indicated on page 3 of
this permit, and per approved plans. Pond 2 is designed for the interim condition
and Pond 3 is designed for the built-out condition.
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 appropriate permitted stormwater control
system.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 910403 Modification
6. The following design criteria have been permitted for the wet detention ponds
and must be maintained at design condition:
Pond 1 Pond 2 pPond 3
a. Drainage Area, cres: 4.62 5.92 5.92
Onsite, ft� 201,801 257,695 257,695
Offsite, ft2: 0 0 0
b. Total Impervious Surfaces, ft2: 102,164 41,049 174,460
c. Design Storm,.inches: 1 1 1
d. Pond Depth, feet: 5.0 5.0 5.0
e. TSS removal efficiency: 90% 90% 90%
f. Permanent Pool Elevation, FMS6: 49.0 48.0 48.0
g. Permanent Pool Surface Are.9, ft : 10,356 4,244 13,034
h. Permitted Storage Volume, ft : 12,467 4,948 14,168
i. Temporary Storage Elevation, FMSL:50.0 49.0 49.0
J Controlling Orifice: 1.25"0 3 @0.5"0 2 @1"0
k. Permitted Forebay Volume, ft3: n/a 2,767 10,533
I. Max. Fountain Horsepower: 1/8/ 1/8 1/6
m. Receiving Stream/River Basin: Osgood Branch / Cape Fear
n. Stream Index Number: CPF23 18-74-39-1
o. Classification of Water Body: "C Sw"
pPond 3 is Pond 2 at its full future built-out condition.
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and op ationGl fvr �s i1 tci KUOU use prior L0 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, 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. 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.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 910403 Modification
6. 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
tubinq, 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 based on the
permanent pool volume, as listed in Section 1.6 of this permit.
7. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
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. The permittee shall provide for continued access to the stormwater facilities for
maintenance and inspection 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.
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.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 910403 Modification
Ill. GENERAL CONDITIONS
1. This permit is not transferable to any entity or person 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%wnershir) change
form, documentation from the parties involved, and other supporting materials as
may be appropriate such as the Designer's Certification, a signed Operation and
Maintenance plan and recorded deed restrictions. 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
vu$iiic�$"ours for the — use of inspecuncg aii 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 9th day of August 2006.
NORTH ROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Alan . Klimek, P.E., Director
'Division of Water Qualifij
By Authority of the Environmental Management Commission
Page 5 of 7

C1
Date Received Fee Paid Permit Number
I-1q'Z00 400 -A, I(a z7&5 L7/0 403 v .
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
1. Applicants name specify the name of the corporation,individual,etc.who owns the project):
CO CaN�vr
2. Print Owner/Signin Official's and title( enm ally r onsible for facility and compliance):
rk
kt
3. Mailing Address for person listed in item 2 above:
!OS S. e4W4 / 97-96sr
City: State: We- Zip: "42-6--
Telephone Number: l 4/49
4. Project Name(subdivision,facility,or establishment name-should be consistent with project name on
plans,specifications,letteern n
letters,operation and maintenance agreements,etc.):
5. Location of Project(street address):
So S W&Ke a 37MEE -
City: A#V County: 11/C
6. Directions to project(from nearest major intersection):
HAIV' /1T # I >7/�4t/GeK , Ya Mi,LE- 6W LET
7. Latitude: 710 C!5 Longitude: ILI" 331 of project
8. Contact person who can answer questions about the project:
Name: , A• 0-MAX. PJACli l Telephone Number: .259- 5060
II. PERMIT INFORMATION:
1. Specify whether project is(check one): New Renewal `e' 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 cSMA3 wo 403 and its issue date(if known)
3. Specify the type of project(check one):
Low Density ✓ 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 ize how stormwater will be treated. Also attach a detailed narrative
(one to two pages)describing stormwater management for the project.
2. Stormwater runoff from this project drains to the C VC iw,4 River basin.
3. Total Project Area: acres 4. Project.Built Upon Area: ?Z_%
5. How many drainage areas does the project have? Z
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.
/fan d Z
Po/Jcl .'� 1:64
Basin Wennathm Dry Area 1 Area
Receiving Stream Name 0&009 6 OSroaD Ae"H
Receiving Stream Class N/
Drainage Area .201.0O$ Af z -721, `s t-
Existin Impervious*Area 102.0 1r,4 Pt: 4/ 04? At,-
Proposed Im ervious*Area
%Impervious*Area(total) yp, $ %
o a Area Area 1 ra Arm I .
On-site Buildings 3`f 1 SZ P- -7
On-site Streets Of o 726 fit` 31 `{ 0f:
On-site.2j&king QS 9�
On-site Sidewalks $ Zvi /-F` .2 50 If"
Other on-site
Off-site
Total: /p Z jG z Total:
*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

Additional Drainage Area
(Proposed Future Development) (.Fogh Il) Ze
Basin Information Drainage Area ,��
Receiving Stream Name 1 Osgood Branch
Receiving Stream Class C Sw
Drainage Area 257695 s.f.
Existing Impervious Area 41049 s.f.
Proposed Impervious Area 174460 s.f.
% Impervious Area 67.7
Impervious Surface Area Drainage Area
On-site Buildings 7022 s.f.
On-site Streets 31477 s.f.
On-site Parking 0
On-site Sidewalks 2550 s.f.
Other on-site 133411 s.f.
Off-site 0
Total: 174460 s.f.

7. How was the off-site impervious area listed above derived? A11Y
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 WA 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 AA square feet of any lot shall be covered by structures or 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 d state stormwater management permit modification prior to
construction.
5. A.11 permitted runoff from 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 Stormwater and General Permits Unit at(919)733-5083 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 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.
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: f�
-Development/Project name
-Engineer and firm
-Legend
-North arrow
-Scale
-Revision number&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)
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 firmn):_Grti r n Gk n e e r n G
Mailing Address: 3 o
City: IP, LA,r State: N C Zip: 2 0 1 Z S
Phone: Z-S 80 b Fax:
VIII. APPLICANT'S CERTIFICATION
I,(print or type name of person listed in General Information,item 2) BaPdtk UA
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 2H.10Ali
Q
Signature: Date: -G
Form SWU-101 Version 3.99 Page 4 of 4

Permit No. SW Y g100?10W
(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
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION //�� n/�
Project Name: p a Gtr Mzy ymwa rl (�6WAl',ET
Contact Person: R. z&= Akran/ Phone Number: (9Ao 1 2419— 4000
For projects with multiple basins, specify which basin this worksheet applies to: PoAtP // /Ar. 4
elevations
Basin Bottom Elevation ft. (floor of the basin)
Permanent Pool Elevation 'f8 ft. (elevation of the orifice)
Temporary Pool Elevation 49 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area �r Z�f� sq. ft. (water surface area at the orifice elevation)
Drainage Area I..9 2 ac. (on-site and off-site drainage to the basin)
Impervious Area 0. ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume 12, &5'0 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume �, 1749 cu. ft. (volume detained above the permanent pool)
Forebay Volume .2. 7 G 7 cu. ft. (approximately 20%of total volume)
Other parameters
SA/DA1 - OQSd (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 0-y�� in. (2 to 5 day temporary pool draw-clown required)
Design Rainfall I in.
Design TSS Removal 2 SS % (minimum 85% required)
Form SVVU-102 Rev 3.99 Pagel of 4

Footnotes:
l When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
E M`-1 a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
&rf-w b. The forebay volume is approximately equal to 20% of the basin volume.
c Win' c. The temporary pool controls runoff from the design storm event.
it d. The temporary pool draws down in 2 to 5 days.
(Z. e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
calculations)
Kov f. The basin length to width ratio is greater than 3:1.
i Z*N g. The basin side slopes above the permanent pool are no steeper than 3:1.
1�, VJ h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
IL 0A.,v� i. Vegetative cover above the permanent pool elevation is specified.
hJ j. 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.
/h 1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
lnJ m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system(check one) 0 does 0 does not incorporate a vegetated filter at the outlet.
This system(check one) 0 does 0 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 basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover,mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system(i.e. catch basins,piping, swales,riprap, etc.)quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads S.75 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.Z'S feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation
Sediment Re oval El. 75
-------------- - Sediment Removal Elevation 75%
Bottom Ele ation N-
Bottom Elevation 4 3 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 practical.
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: JAu 1 l B . &rkd%
Title: A55J.'5F&ot ?,vuhtV Hower
Address: ,Or & I�Gt B I. �� g�-,� �
Phone: Jr'
Signature:
Date:
TT�
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 subdi i:Jon has been named the president.
I, , a Notary Pub ' for the State o
vt'County of — , do hereby certify that
personally appeared before me this J.q�day of ITy -A-, ,ads,and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-102 Rev 3.99 Page 4 of 4

Permit No.
(to be provided by DN'Q)
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 an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION ,
Project Name: Fe motor e:1y'Vr1( aal-�M mr
Contact Person: A• AlAoCk Y4442-V Phone Number. f9/o 1 2s9 -�f800
For projects with multiple basins, specify which basin this worksheet applies to:bFt s` gg TbnfD
elevations
Basin Bottom Elevation 44 ft. (floor of the basin)
Permanent Pool Elevation tf 9 ft. (elevation of the orifice)
Temporary Pool Elevation 150 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 10, .356 sq. ft. (water surface area at the orifice elevation)
Drainage Area &7- ac. (on-site and off-site drainage to the basin)
Impervious Area 2. 34 ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume 37, 4295" Cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 11, 99 2• cu. ft. (volume detained above the permanent pool)
Forebay Volume !� cu. ft. (approximately 20%of total volume)
Other parameters
SA/DAt 01 027Z- (surface area to drainage area ratio from DWQ table)
Diameter of Orifice .2 in. (2 to 5 day temporary pool draw-down required)
Design Rainfall I in.
Design TSS Removal 2 957 % (minimum 85% required)
Form SWU-l02 Rev 3.99 Page 1 of 4

Footnotes:
3 When using the Division SAIDA 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 BW manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met,attach justification.
Applicants Initials
a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
b. The forebay volume is approximately equal to 20%of the basin volume.
c. The temporary pool controls runoff from the design storm event.
.d. The temporary pool draws down in 2 to 5 days.
��•h e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
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 g g perimeter shelf with a slope of 6:1 or less(show detail).
Eat b�c n t 4- Vegetative cover above the permanent pool elevation is specified.
RM j. A trash rack or similar device is provided for both the overflow and orifice.
N/A k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
�A I. If the basin its used for sediment and erosion control during construction,clean out of the
basin is specified prior to use as a wet detention basin.
NSA m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system(check one) 0 does 0 does not incorporate a vegetated filter at the outlet.
This system(check one) 0 does 0 does not incorporate pretreatment other than a forebay.
Form SW-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 basin system for sediment accumulation,erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins,piping, swales,riprap, etc.)quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75%of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(Le.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 3 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads ALA feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fall in the blanks)
p Permanent Pool Elevation Aq-
Sediment Re oval El. �a175
-------�-/-�----- -- Sediment Removal Elevation 3 75%
Bottom Ele anon '.�� °k --------------------------------------------- -------
Bottom Elevation� 25�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 practical.
F9ara SWU-1Q2 Rev 3.99 Page.i of

7. All components of the wet detention basin system shall be maintained in good working order.
l 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: 'Vke'O
Title:
Address: d
Phone:
Signature:
Date:_ Ah
lD 4
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 subdi;;,ion has been named the president
I, a Not
ary c for the State
County of , do hereby certi that
personally appeared before me this—W�7 day of�IYi�,e�. a n ,a C ,and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires (p
Fvci"S"VPJJ-It02 Rev 3.`3> Page 4 Of 4

Permit No.
(w be provided by Dil'Q)
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 pholocopied for use as an original
DWO Stounwater Management Plan Review-
A complete stormwater management plan submittal includes an applipation form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: 1062weR awyr G1"'V-;WA1FXr (Gnt
Contact Person: - /Q /�i�i &J/J Abn/ Phone Number. f 9r0 )Z57-4Hao
For projects with multiple basins, specify which basin this worksheet applies to: 'Payio -a-
elevations
Basic; Bottom,Elevation ft. door of the basin)
Permanent Pool Elevation icy ft. (elevation of the orifice)
Temporary Pool Elevations ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area, r 3103q sq. ft. (water surface area at the orifice elevation)
Drainage Area ac. (on-site and off site drainage to the basin)
Impervious Area 6(1& ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume ��, 0.30 ,cu. ft. (Combined volume of main basin and forebay)
Temporary Pool Volume /y /fO S cu. ft. (volume detained above the permanent.pool)
Forebay Volume /O; 533 cu. ft. (approximately 20%of total volume)
Other parameters
SA/DA1 . DOSD (surface area to drainage area ratio from DWQ table)
Diameter of Orifice f in. (2 to 5 day temporary pool draw-down required)
Design. Rainfall / in,
Design TSS Removal 2 f35Xv % (minimum 85% required)
Form SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
1 When using the Division SAIDA tables,the correct SAIDA 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 NCDI✓NR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECK-LIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification
Applicants Initials
R-411`vJ a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
fit") b. The forebay volume is approximately equal to 20%of the basin volume.
c. The temporary pool controls runoff from the design storm event.
J. The temporary pool draws down in 2 to 5 days.
F4L k-) e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
calculations)
Vfl,hj 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.
t N` h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less(show detail).
bV i. Vegetative cover above the permanent pool elevation is specified.
j. 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.
I'j/A"' 1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
Y"' J m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. '"'ET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system(check one) 0 does 0 does not incorporate a vegetated filter at the outlet.
This system(check one) 0 does 0 does not incorporate pretreatment other than a€orebay.
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 basin system for sediment accumulation,erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches,and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins,piping, swales,riprap, etc.j quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth(see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact wager 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 3.715, feet in the main pond,the sediment shall be removed.
When the permanent pool depth reads 2•7-5" feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation
SedimenNReoval El.*Z.76 75---------- Sediment Removal Elevation 39 2Botton ---------------------------------------------125%
-----
Bottom Elevation��
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance,the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Form SWU-t 02 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:�YQ1AQ.� �If Title:—
Address:--
Phone:.
Signature:
Date:
_ IIhq
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 subdi.,lion has been named the president.
�+ , a Notary Pub ' for the State ofCAAAx-gA
County of , do hereby certify that -rt�_
personally appeared before me this day of and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires .J Lo
Form S Wu-102 Rev 3.99 Page 4 of 4

WALToNENaiNEEPjNC
August 1, 200#-ECEIVED
�
AUG 0 3 20
Ms. Linda Lewis
NC DENR Division of Land Quality
127 Cardinal Drive Extension
Wilmington,NC 28405
Re: Request for Additional Information, Stormwater Project No. SW8 910403
Dear Ms. Lewis,
Enclosed are the revisions to the plan maps you requested.
If you have any questions, please contact me at 910-259-4800.
Sincerely,
Adrian L. Moon
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax:[phone]

c���p✓���'� /g�`l- ��'���� I/i��C �/(� ram'%��ii j1.
o
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'41sodkL

[Fwd:Pender County Govt.Complex SW8 910403 Mod.]
Subject: [Fwd: Pender County Govt. Complex SW8 910403 Mod.]
From: Linda Lewis <[e-mail]>
Date: Fri, 28 Apr 2006 15:37:21 -0400
To: Mark Walton<[e-mail]>,Adrian Moon<[e-mail]>
Mark/Adrian:
In addition to my previous email, the orifice sizes on the supplement forms for
ponds 2 and 3 will need to be revised as well. In the interest of time, I will make
the necessary changes to the supplements upon receipt of the revised plans.
Linda
Subject: Pender County Govt. Complex SW8 910403 Mod.
From: Linda Lewis <[e-mail]>
Date: Fri,28 Apr 2006 15:24:55 -0400
To: Mark Walton<[e-mail]>,Adrian Moon<[e-mail]>
Mark/Adrian:
This project has been one of the longest I've dealt with ever. I think we're almost
there. On February 22, 2006, you submitted new orifice calculations for Ponds 2 &
3, however, you did not provide any revised plans. Please submit 2 copies of the
revised plans that reflect those new orifices sizes (Dh) and how many holes there
are (N) on the plan details.
Linda
j Content-Type: message/rfc822
Pender County Govt. Complex SW8 910403 Mod.
Content-Encoding: 7bit
1 of 1 4/28/2006 3:51 PM

WAToNENGWEERm
February 2, 2006 �y 10
;
06
Ms. Linda Lewis
NC DENR Division of Land Quality
127 Cardinal Drive Extension
Wilmington,NC 28403
Re: Request for Additional Information, Stormwater Project No. SW8 910403
Dear Ms. Lewis,
Enclosed are the revisions, corrections, and additions to the plans and calculations as
requested in your letter dated December 1, 2005. The comments are handled as follows:
1. Attached is a table providing the necessary information to support the conclusions that
sufficient volume has been provided in each pond and forebay.
2. The orifice sizes were recalculated and result in drawdowns of greater than two days.
3. Pond 3 orifice sizes were recalculated using the calculations for the 1"volume 14,168
cubic feet.
4. The Temporary Pool Volumes in the blank on the supplement for all three ponds are
correct as noted in the previous submitted supplement and the attached pond volume table.
5. The orifice calculations for Pond 2 have been corrected,resulting in a drawdown that is
greater than 2 days and the spreadsheet is attached.
6. The correct 1" minimum required volume for Pond has been calculated and is attached.
The correct volume was transferred to the orifice calculation spreadsheet.
7. A spreadsheet is attached to provide a mathematical check that 13,034 sgft of surface area
at the permanent pool elevation for Pond#3 is sufficient.
Tel:[phone] PO Box 895,FsurRaw,North Carolina,28425 Fax:[phone]

WAToNENi7INEERJNG
If you have any questions, please contact me at 910-259-4800.
Sincerely,
Adrian L. Moon
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax:[phone]

Re:Pender Co. Govt. Complex SW8 910403
Subject: Re: Pender Co. Govt. Complex SW8 910403
From: "Mark Walton" <[e-mail]>
Date: Wed, 7 Dec 2005 13:28:45 -0800
To: "Linda Lewis" <[e-mail]>
Linda,
I will get the additional information back to you in a few days. No need to
have a meeting.
Thanks
Mark
----- Original Message -----
From: "Linda Lewis" <[e-mail]>
To: "Mark Walton" <[e-mail]>
Sent: Thursday, December 01, 2005 10:29 AM
Subject: Pender Co. Govt. Complex SW8 910403
Mark:
Attached is my request letter for additional information and an Excel
spreadsheet. You seem to be having a lot of trouble with the elevation,
area and volume tables, the orifice sizing and the calculation of the 1"
volume. Perhaps we should sit down and discuss these items so that we
can avoid delaying this permit any more?
Linda
1 of 1 12/7/2005 5:26 PM

WA.rE Michael F. Easley, Governor
�0G William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
>_
Alan W. Klimek, P.E. Director
Division of Water Quality
December 1, 2005
Mr. Paul Parker, Asst. County Manager
Pender County
801 S. Walker Street
Burgaw, NC 28425
Subject: Request for Additional Information
Stormwater Project No. SW8 910403
Ponder County Government Coplex
Ponder County
Dear Mr. Parker:
The Wilmington Regional Office received some of the previously requested additional
information for the Stormwater Management Permit Application for Ponder County
Government Complex on September 20, 2005. A preliminary review of that information has
determined that the application is not complete. The following information is needed to
continue the stormwater review:
1. The consultant has indicated that a table of elevations, areas, incremental'
volumes and accumulated volumes for the ponds and forebays has been
provided, however, I am unable to locate them anywhere. I have attached a
spreadsheet to assist your consultant in providing the necessary information for
each pond to support the conclusions that sufficient volume has been provided in
each pond and forebay.
2. Please recalculate the orifice sizes for Ponds 1 and 2. Please use the calculated
1" required minimum volume, not the provided temporary pool volume. The
specified orifice diameters for these ponds result in a drawdown that is less than
2 days, per the consultant's own calculations.
3. Please recalculate the orifice size for Pond 3 using the 1" volume. The most
recent hand-written calculations provided by the consultant indicate that the 1"
volume is 14,168 cubic feet, however, the orifice calculations use.a volume of
28,335 cubic feet.
4. Please report the actual temporary pool volume provided in the pond in the blank
on the supplement for "Temporary Pool Volume".
5. The orifice calculations for Pond 2 indicate that there are six (6) one-half inch
diameter orifices. The total orifice area necessary to achieve a 5-day drawdown
of the 1" runoff volume is 0.41 square inches, or 0.0028 square feet. The
consultant has calculated a total required orifice area for a 5 day drawdown as
0.342 square inches, or 0.0024 square feet. Dividing this by 6 yields 0.057
square inches, or 0.000396 square feet per orifice. The consultant has somehow
calculated this as .0005 square feet. The six one-half inch orifices, specified by
the consultant, provide too much area, which results in a drawdown that is less
than 2 days. Please check the math, correct and revise as necessary.
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone[phone] Customer Service1-877-823.6748
Wilmington Regional office Wilmington,NC 28405-3845 FAX [phone] Interne* h2o.ennstate.nc.us JJne Carolina
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper �VNaturally

Mr. Parker
December 1, 2005
Stormwater Application No. SW8 910403 Mod.
6. Please recalculate the 1" minimum required volume for Pond 2 using the
correct Rv factor. The volume calculation provided appears to use an Rv
factor of .51, which was the Rv factor for Pond 1. The calculated Rv factor
for Pond 2 is 0.1931. Once the correct 1" volume has been calculated,
transfer this number to the spreadsheet used to calculate the orifice size.
7. Please provide a mathematical check that 13,034 square feet of surface
area at the permanent pool elevation for Pond #3 (aka Pond #2 built-out)
is sufficient by calculating the required minimum surface area for a
drainage area of 257,695 ft2 at 67.7% impervious, and a 5' deep pond.
Please specify the TSS value, provide the table of areas and volumes
(see attached spreadsheet for guidance), and calculate the SA/DA ratio
and the minimum surface area required for this pond.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received in this Office prior to January 3,
2006, 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 Division is allowed 90 days from the receipt of a completed
application to issue the permit.
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.
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].
Sincerely,
4l
Linda Lewis
Environmental Engineer
ENB/arl: S:IWQSISTORMWATERIADDINFO120051910403.dec05
cc: Mark Walton, P.E., Walton Engineering
Linda Lewis
Page 2 of 2

Pond 1 (entire pond including forebay)
Elev. Surfac:;Area Inc. Vol. Acc. Vol.
(Bottom)
(PP)
(DP)
Pond 1 Forebay alone
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom)
(PP)
Pond 2 (entire pond including forebay)
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom)
(PP)
(DP)
Pond 2 Forebay alone
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom)
(PP)
Pond 3 (entire pond including forebay)
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom)
(PP)
(DP)
Pond 3 Forebay alone
Elev. Surface Area Inc. Vol. Acc.Vol.
(Bottom)
(PP) 1 ! i !

WALToNENGME&NC7
September 17, 2005
Ms. Linda Lewis ,
NC DENR Division of Land Quality
127 Cardinal Drive Extension
Wilmington,NC 28403
Re: Request for Additional Information, Stormwater Proje CNoSW8 910403
Dear Ms. Lewis,
Enclosed are the revisions, corrections, and additions to the plans and calculations as
requested in your letter dated June 6, 2005. The comments are were handled as follows:
1. Dimensions for the new parking and drives have been added.
2. Revised `Riser and Barrel' design sheets have been enclosed for each of the stormwater
ponds.
3. All enclosed calculations have been sealed.
4. A table showing the elevations, areas, incremental volumes and accumulated volumes for
the permanent pool volume, the forebay volume and the temporary pool volume in each
pond is enclosed. This information was previously submitted on the Wet Detention Basin
Supplement forms. The areas were determined using computer CADD 2D analysis.
Complete sizing calculations showing, in detail, how the volume was determined are
enclosed and sealed.
5. The existing orifice size has been added to the pond section detail for the existing pond.
6. Dimensions for all sides of the permanent pool contours in the existing pond have been
added.
7. Pond sections and outlet structure details have been labeled to indicate which pond they
apply to.
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax:[phone]

WALToNENGMERiNG
8. Complete, sealed sizing calculations have been enclosed for ALL ponds. The explanation
for the calculations for Pond III is that it is sized for possible future development. These
calculations do not include plans or calculations for the future drainage system because
there are currently no definitive plans for future development. The `possible' impervious
area that can be used if and when construction would take place was back calculated from
the calculated size of the Pond III.
If you have any questions, please contact me at 910-259-4800.
Sincerely,
Jason L. Williams
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax_910 259-1779

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Michael F. Easley, Governor
`ap William G. Ross, Jr., Secretary
�— North Carolina Department of Environment and Natural Resources
17 r Alan W. Klimek, P.E. Director
Division of Water Quality
June 6, 2005
Mr. Paul Parker, Asst. County Manager
Pender County
801 S. Walker Street
Burgaw, NC 28425
Subject: Request for Additional Information
Stormwater Project No. SW8 910403
Ponder County Government Complex
Ponder County
Dear Mr. Parker:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Pender County Government Complex on April 11, 2005. A preliminary review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
1. Please provide dimensions for the new parking and drives, as previously
requested.
2. Please check the head measurement used to calculate the orifices. The cover
letter from the consultant indicates that the average head has been used, but the
"average" heads used are still far to.large. The average head is one half of the
measured distance from the centerline of the proposed orifice to the next
available outlet above the permanent pool, usually, but not necessarily, the
temporary pool elevation. In this case, the consultant has specified an outlet at
the temporary pool elevation, so the average head will be approximately 6".
3. Please seal the revised calculations.
4. Please provide a table of elevations, areas, incremental volumes and
accumulated volumes for the permanent pool volume, the forebay volume and
the temporary pool volume in each pond, as previously requested. Simply stating
the amount of volume that has been provided is not sufficient. Please
demonstrate, in detail, how the volume was determined.
5. Please add the existing orifice size to the pond section detail for the existing
pond.
6. Please provide dimensions for all sides of the permanent pool contour in the
existing pond.
7. T here are two sets of pond section and outlet structure details. Please label each
with the pond that the detail applies to.
8. The consultant's cover letter indicates that complete sizing calculations for Pond
1 were provided, however, my letter of February 2, 2005, requested complete
calculations for Pond III. Please see comment number 4.
North Carolina Division of Water Quality ?27 Cardinal Dnva Extension Phone[phone] Customer Service i-877-623-6748
Wilmington Regional Office Wilmington,NC 28405-3845 FAX [phone] Internet h2o.enr.state.nc.us �Jne
N Carolina
An Equal Opportunity/AfBrmaffm Action Employer-50%Recyded/I0%Post Consumer Paper Natyrally

Mr. Parker
June 6, 2005
Stormwater Application No. SW8 910403
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 July 6,
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 Division is allowed 90 days from the receipt of a completed
application to issue the permit.
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.
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].
Sincerely,
Linda Lewis
Environmental Engineer
ENB/arl: S:IWQSISTORMWATERIADDINFO120051910403.jun05
cc: Mark Walton, P.E., Walton Engineering
Linda Lewis
Page 2 of 2

WALToNENaNEER-fliNV�
RECEIVED
APR 1 12005
April 6, 2005 BY:
Ms. Linda Lewis
NC DENR Division of Land Quality
127 Cardinal Drive Extension
Wilmington, NC 28403
Re: Stormwater Management Permit Modification, Permit No. SW8 910403
Dear Ms. Lewis,
Enclosed are the additions and corrections for the Stormwater Management Permit application plans,
specifications, and calculations for a stormwater modification at the Pender County Government
Complex as requested in your letter dated February 2, 2005.
The following changes and additions have been made:
1. A note was added to the plan indicating that no wetlands exist on the site.
2. The drainage area for each pond has been clearly delineated.
S 3. Vegetation specifications have been added for planting on the side slopes of the pond. Wetland
species were specified for the 6:1 shelf.
4. Dimensions have been added to the permanent pool contour for each of the ponds.
1� yf 5. Dimensions,finished grade elevations, and finished floor elevations were added for buildings not
a proved under the original 1991 permit. Finished elevations for the newer parking area are
C shown via topography contours. 2
6. Complete pond sizing calculations for pond I have been added. PCn�ff
D�7. Calculations for flow have been corrected. —_Sdc --heeL_ 5fi11 tDo h`
V--8. Calculations used to arrive at the provided temporary pool volume, p rmanent pool volume, and
forebay volume for each pond are included. NC IT dor.,� — �U h1e
9. The calculations for Pond I have been revised to 90%TSS. — r)-ee4— 6�3e SeZ led.
10. The blank on the supplement for Pond I regarding the requirement for an emergency drain, has
been initialed.
11. A number was added to the BUA breakdown section of the application for Pond III that resulted in
the total proposed BUA of 174,660 s.f.
12. On the supplement for Pond III,the drainage area is now indicated correctly as 5.92 acres.
v 13. A legend was added to the plans.
v 14. The 3:1 slope requirement and the 6:1 slope have been specified on the pond section details.
15. A vegetated filter detail was added to the plans for Pond I and Pond II.
��cQ �2i� QS•
ZerJ� �etiti 5`� 27F
If you have any questions, please contact me at 910-259-4800.G>{ ' �
II QW r . ir�
`ZY'gl t,90 Sincerely,
p &MV44-L'
D.Allen Thornton
Tel:[phone] PO Box 895,Burgaw,North Carolina,29425 Fax:[phone]

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Pond 1 (entire pond including forebay)
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom) 44 ft 4614 sgft 1 0
(PP) 49 ft 10,356 s ft 137425 cult 137425 cult
(DP) 50 ft 114577 sgft 15917 cult 143340 cuft
Pond 1 Forebay alone
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom) INA
(PP) INA
Pond 2 (entire pond including forebay)
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom) 43 ft 564 sgft
(PP) 48 ft 4244 sqft 112650 cult 112650 tuft
(DP) 49 ft 15652 sgft 14948 cult 117598 cuft
Pond 2 Forebay alone
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom) 145 ft 1539 sgft 1 0
(PP) 148 ft 11309 s ft 12767 cult 12767 cuft
Pond 3 (entire pond including forebay)
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom) 43 ft 6578 sqft RECEIVED
(PP) 48 ft 13034 sgft 149030 cult 149030 cult
(DP) 49 ft 115302 sqft 114168 cult 163198 cult I FEB 2 2 2006
Pond 3 Forebay alone DWQ
PROD#
Elev. Surface Area Inc. Vol. Acc. Vol.
(Bottom) 145 ft 12775 sqft
(PP) 148 ft 14247 sqft 110533 cult 110533 cuft

WAL TON ENGINEERING
Certification
I hereby certify that the attached Stormwater Permit application modification for the Pender County
Government Complex and supporting documentation was prepared under my direct supervision.
P.E. Signature
00
���.CA .
aeft�P.E. Name R. Mark Walton 104 Es
Registration No. 16879 SEAL
16879
State: North Carolina ' , ...
Date: 11/1 0
RECEIVED
NOV 19 2004
nwQ
PROD# SUJ? 9(G¢G3 1-/oO
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax:[phone]

Runoff Calculations
Project: Pender Co. Gov. Complex Design Storm (yr): 25
Date: 11/16/2004
Basin No. D.A. 1 D.A.2 Culvert#1
Drainage Area I.D. D.A. 1 D.A.2 Culvert#1
Drainage Area (Total, s.f.) 201,081 257,695 55,194 0
Drainage Area (Total, ac.) 4.62 5.92 1.27 0.00
Drainage Area Breakdown
Area Area Area Area
Description Runoff Coefficient (s.f.) (s.f.) (s.f.) (s.f.)
Road 0.85 59,726 J 7,028 0 0
Bare Soil(Lawn/Lndscp.) 0.2 98,917 216,646 33,261 0
Sidewalks 0.85 8,286 2,550 624 0
Roofs 0.85 34,152 7,022 3,091 0
Packed Gravel 0.85 0 24,449 18,218 0
Runoff Coefficient, Total Drainage Area 0.530 0.304 0.458 #DIV/0!
Height of Most Remote Point Above Outlet(ft) 5 5 4
Maximum Length of Travel (ft) 520 520 314
Tc(min) 5.6 5.6 3.5
Rainfall Intensity(in/hr) 8 8 8
Peak Runoff(cfs) 19.58 14.37 4.65
RECEIVED
Nov 1 P 2004
Dw@
PROJ#

EXISTING WET POND DESIGN
Project Name: PENDER CO. GOV. COMPLEX Date: 11/16/2004
Calculated By: Jason Williams
Drainage Area = 4.62 acres
Impervious Area = 2.34 acres
Percent Impervious, I = 50.6%
Required
Surface Area
at Permanent
Depth (ft) SA/DA Pool (s.f.)
3.0 0.0426 8,582
3.5 0.0381 7,664
4.0 0.0329 6,613
4.5 0.0304 6,117
5.0 0.0272 5,466
5.5 0.0241 4,846
6.0 0.0213 4,288
6.5 0.0192 3,871
7.0 0.0155 3,113
7.5 0.0128 2,582
PP Depth Selected 5 feet
Design Storm 1.0 Inches n
Rv Value 0.505844156 = .05+ ,009(I)
TP Volume Required 8,483 c.f. T
Surface Area Provided @ PP 10,356 s.f.
PP 49.00 feet
Min. Temp. Pool Depth Required 0.82 feet (Z fC)
TP Depth Selected 1.00 feet
Elev. @ TP 50.00 feet L��U
Surface Area Provided @ TP 13,627 s.f. h�S
TP Volume Provided 11992 c.f.
TP Volume Provided > Required? Yes If"No", increase volume provided. % I
2
Area at Bottom of PP 4,614 s.f.
PP Volume Provided 37,425 c.f.
FarrVolume Rai,ed 7,405---e -
;Forebay Volume Provided 9,099
Orifice Sizing Flowrate
\0� 2 Day Drawdown 0.05 c.f.s.
3 Day Drawdown 0.03 c.f.s.
Y 4 Day Drawdown 0.02 c.f.s.
5 Day Drawdown 0.02 c.f.s.
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WET POND II DESIGN
Project Name: PENDER CO. GOV.COMPLEX Date: 11/15/2004
Calculated By: Jason Williams
Drainage Area = 5.92 acres
Impervious Area= 0.94 acres
Percent Impervious, I = 15.9%
Required
Surface Area
at Permanent
Depth (ft) SA/DA Pool (s.f.)
3.0 0.0138 3,551
3.5 0.0110 2,828
4.0 0.0097 2,514
4.5 0.0089 2,300
5.0 0.0080 2,051
5.5 0.0058 1,496
6.0 0.0053 1,361
6.5 0.0047 1,213
7.0 0.0040 1,037
7.5 0.0035 898
PP Depth Selected 5 feet
Design Storm 1.0 Inches
Rv Value 0.192905405 = .05+ ,009(l)
TP Volume Required 4,145 c.f.
Surface Area Provided C PP 4,244 s.f.
Elev. @ PP 48.00 feet
Min. Temp. Pool Depth Required 0.98 feet
TP Depth Selected 1.00 feet
Elev. @ TP 49.00 feet
Surface Area Provided @ TP 5,652 s.f.
TP Volume Provided 4948 c.f.
TP Volume Provided> Required? Yes If"No", increase volume provided.
Area at Bottom of PP 816 s.f.
PP Volume Provided 12,650 c.f.
Forebay Volume Required 2,530 c.f.
Forebay Volume Provided 2,767 c.f.
Orifice Sizing Flowrate
2 Day Drawdown 0.02 c.f.s.
3 Day Drawdown 0.02 c.f.s.
4 Day Drawdown 0.01 c.f.s.
5 Day Drawdown 0.01 c.f.s.

11/r 7/61�
JAW
Appendices
250 Circular risers with splitter wall
200
150
� far
100 Q = 3.1LH3/2
90
80 - -
70 {,,•
60 =
v
U 50 30,,
40 Splitter-type
Crest headwall
0 30 2V - h
a) d
EL
20 Pipe
riser Z
-r
' D
11,,
kS I I
10 I Pipe conduit
9 - — For conduit slope>friction slope,Z=51)
8 For conduit slope<fricfion slope,Z=21)
7
6
5 -
0.5 1.0 1.5 2.0 2.5 3.0
o'�0y Head required at crest of riser in feet(h)
Inlet Proportions Pipe drop inlet spillway design:
Pipe Pipe
Conduit Riser For a given Q and H, refer to Table 8.07a or 8.07b for conduit size.
(D)-in (d)-in Then determine the riser diameter(d)from the Inlet Proportions Table
on this figure. Next, refer to the above curves, using the conduit
15 18 capacity and riser diameter,and find the head(h)required above the
224 1 crest of the riser.The height of the riser should not be less than 5D-h,
21 30 except as noted in the above sketch.
30
30 36 Example-Given: CMP;Q _•20 cfs;H = 14 ft,h max. 1.0 ft;L = 70 ft.
36 48 From Table 8.07a find conduit size(D) = 18 inches. From Inlet Propor-
42 54 tions Table, riser size = 24 inches. Head(h)required for Q = 20 and
48 60 d = 24 is 1.0 ft.
Figure 8.07b Design chart for riser outlet.
Rev. 12193 8.07.9

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ALTON LNG�N �RrNG .

11/i7/a 4
1A_OV
Appendices
kwk
250 Circular risers with splitter wall
200 '60"
150 U41 ,
100 Q = 3.1 LHIT
3/2
90
80 -
70 - 6"
60
50
•� 30
Cl- 40 Spiitter-type
0 30 U _ Crest headwall h
2
d
20 Pipe z _
riser
-i f
10 I Pipe conduit
9 — For conduit slope>friction slope,Z=51D
8 For conduit slope<friction slope,Z=21)
7
6 Mi
5
0.5 1.0 1.5 2.0 2.5 3.0
t
D tD� Head required at crest of riser in feet(h)
Inlet Proportions Pipe drop inlet spillway design:
Pipe Pipe
Conduit Riser For a given Q and H,refer to Table 8.07a or 8.07b for conduit size.
(D)-in (d)-in Then determine the riser diameter(d)from the Inlet Proportions Table
on this figure. Next,refer to the above curves,using the conduit
15 18 capacity and riser diameter,and find the head(h)required above the
18 24 21 crest of the riser.The height of the riser should not be less than 51)-h,
2'I 30 except as noted in the above sketch.
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1NA7'E Michael F. Easley, Governor
�°
.�� 6 William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
y
Alan W. Klimek, P.E. Director
Division of Water Quality
February 2, 2005
Mr. Paul B. Parker, Asst. County Manager
Pender County
801 S.Walker Street
Burgaw, NC 28425
Subject: Request for Additional Information
Stormwater Project No. SW8 910403 Mod.
Pander County Government Complex
Pender County
Dear Mr. Parker:
The Wilmington Regional Office received a modified Stormwater Management Permit Application for
Pender County Government Complex on December 28, 2005. A preliminary review of that information
has determined that the application is not complete. The following information is needed to continue
the stormwater review:
1. Please either delineate all wetlands on site, disturbed or undisturbed, or note on the
plans that none exist.
2. Please clearly delineate the drainage area for each pond.
3. Please specify the type of vegetation to be planted on the side slopes of the pond above
the permanent pool and specify the wetland species to be planted on the 6:1 shelf.
4. Please dimension the permanent pool contour for each of the ponds.
5. Please provide dimensions, finished grade elevations and finished floor elevations for
those buildings and parking areas not approved under the original 1991 permit.
6. The calculations for Pond III appear to be missing several key parts. Please provide a
complete pond sizing calculation for Pond III, including surface areas and volumes.
7. The average head used to calculate flow through the orifice is much too large. The
average head is one-half of the distance between the centerline of the orifice and the
temporary pool elevation. For Pond I, the difference in elevation is only 1 foot, so the
average head would be approximately 05, but the orifice calculations use 3.61 feet.
Likewise for Ponds II and III. This results in the specified orifice for all three ponds being
too large—the ponds draw down in less than 2 days.
8. Please show the calculations used to arrive at the provided temporary pool volume,
permanent pool volume, and forebay volume for each pond. This entails providing a
table of elevations, areas and volumes in each pond, beginning at the bottom and
ending at or above the temporary pool elevation.
9. Please revise Pond 1 calculations to 90% TSS. There is no vegetated filter for this pond,
therefore, the 85% criteria cannot be used.
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone[phone] Customer Sarvice1-877.623-6748
Wilmington Regional Office Wilmington,NC 28405-3845 FAX [phone] Internet: h2o.ennstate.nc.us One
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper VoCarohna
/

Mr. Parker
February 2, 2005
Stormwater Application No. SW8 910403 Modification
10. Please initial the blank on the supplement for Pond 1 regarding the requirement
for an emergency drain. This is as simple as providing a portable pump.
11. Please replace the words "to be determined" on the BUA breakdown section of
the application for Pond III with a specific number that will result in a total
proposed BUA of 174,660 ft2.
12. On the supplement for Pond III, the drainage area is indicated as being 2 acres,
however, the application says it is 5.92 acres. The supplement has "N/A" for
proposed impervious area, but the application has 174,660 ft2. This does not
make any sense. If it is your intent that Pond III be built for 5.92 acres of
drainage area and 174,660 square feet of built-upon, then this needs to be
shown on the supplement.
13. Please add a legend to the plans.
14. Please specify the 3:1 or flatter slope requirement above the permanent pool
elevation, the 6:1 slope requirement on the vegetated shelf, and the width of the
vegetated shelf on the pond section details.
15. Please add a vegetated filter detail to the plans for Ponds II and III.
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 March 2, 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 Division is
allowed 90 days from the receipt of a completed application to issue the permit.
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.
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].
Sincerely,
Linda Lewis
Environmental Engineer
ENB/arl: S:IWQSISTORMWATERIADDINF0120051910403.feb05
cc: Mark Walton, P.E., Walton Engineering
Linda Lewis
Page 2 of 2

Pender County Government Complex
Subject: Pender County Government Complex
From: "jason williams" <[e-mail]>
Date: Wed, 01 Dec 2004 10:58:09 -0500
To: [e-mail]
Linda,
There was a mix up about getting the check for the Stormwater Permit modification application for the Pender
County Government Complex.You should have the check within the next few days.
Jason
Walton Engineering
1 of 1 12/1/2004 11:36 AM

JVALTONENGWEERiNa
f November 17, 2004 RECEIVED
NOV 19 2004
Ms. Linda Lewis
NC DENR Division of Land Quality JW� (U ��j
127 Cardinal Drive Extension POJ#
Wilmington, NC 28403
Re: Stormwater Management Permit Modification, Permit No. SW8 910403
Dear Ms. Lewis,
Enclosed are the Stormwater Management Permit applications plans, specifications, and
calculations for a stormwater modification at the Pender County Government Complex.
This application for modification is to address the concerns of a Notice of Violation, dated
October 14, 2003, and to address proposed future phases of development.
A"Plan of Action"was delivered to your office on December 8, 2003. This letter and
submittal will have met the required concerns for No. 2 of the Notice of Violation.
The project area, after close inspection of the topography, was found to have two drainage
areas. The area on the northeastern side of the road drains via vegetative filter to an existing
drainage ditch running through the existing property. Drainage area#1,the northern part of
the subject property drains to an existing wet pond via an existing swale and culvert.
Calculations were performed and the pond was found to have sufficient volume to handle the
stormwater runoff from this drainage area, with minor modifications to the existing wet pond
and `spillway mechanism'. The pond itself shall be cleaned and have an established level
bottom. The `spillway mechanism' has the capacity to handle the stormwater volume,
however to operate properly the current dewatering hole will need to be raised. See enclosed
Figure 3.
A new `wet pond' is proposed for drainage area#2,the southern part of the subject area, due
to the on-site topography. This area currently drains three existing mobile trailers, a portion of
the road, parking area, sidewalks, roofs and a heat system building. This proposed pond is
designed to only drain this area and the existing impervious area. The existing drainage ditch,
seen in Figure 2, shall be reworked according to the enclosed plans. See Figure 3.
There is also possible future development, in the most southern portion of the property, which
the county may develop. A`wet pond' and calculations have been included with this submittal
for the possible future development. This application does not include plans or calculations
for the future drainage system because there is currently no definitive plan for fature
development. The approximate impervious area was back calculated and is included. At such
time if and when the county is prepared to do the development,the county understands that a
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax:[phone]

WALT4N ENaNEERIN
complete set of plans and a permit modification will be in order. See Figure 4 for the
proposed `wet pond' for the possible future development.
Please note that the drainage areas listed on Page 2 Section 6 of the application are for three
separate areas. Drainage Area 2 has been divided into two drainage areas, one for the existing
development in this drainage area, the other drainage area represents the possible future
development area that will `include' the existing development.
Routine inspections will be made to ensure all stormwater retention devices and swales are
working properly and free of excess sediment.
If you have any questions, please contact me at 910-259-4800.
Sincerely,
µ
Jason L. Williams
Tel:[phone] PO Box 895,Burgaw,North Carolina,28425 Fax:[phone]

Ader County Government Complex
Subject: Re: Pender County Government Complex
From: "Jason williams" <[e-mail]>
Date: Wed, 03 Nov 2004 13:41:24-0500
To: [e-mail]
Linda,
I just wanted to fill you in on the progress with the Pender County Gov. Complex progress. I'm currently in the
process of doing the calculations and designing the revised plans. I hope to be finished with the revisions and have
them submitted to you by sometime next week.
Sincerely,
Jason
Walton Eng.
Find the music you love on MSN Music. Start downloading now!
1 of 1 11/3/2004 3:43 PM

Pender County Government Complex
Subject: Re: Pender County Government Complex
From: "Mark Walton" <[e-mail]>
Date: Wed, 11 Aug 2004 11:35:03 -0400
To: "Linda Lewis" <[e-mail]>
CC: "Paul Parker" <[e-mail]>, "Jason Williams" <[e-mail]>
Linda,
The surveying is done and we have determined the impervious area. We should
know in the next day or two whether the existing pond is large enough.
Hopefully we can have a submittal ready for you within two weeks.
The submittal will include a plan for modification of the outlet structure
and pond modifications (if. required) .
The submittal will also include a new stormwater pond for future development
behind the exisiting county government complex.
Mark
----- Original Message -----
From: "Linda Lewis" <Linda.Lewis @ncmail.net>
To: "Paul Parker" <[e-mail]>
Cc: "Mark Walton" <walton8@bell south.net>
Sent: Monday, August 09, 2004 8:18 AM
Subject: Pender County Government Complex
I would like to know the status of this project. It has been about 6
months since Mark was given the go-ahead to prepare the stormwater plans
to address the violations. I have not heard anything since February.
Please update and provide an expected submittal date.
Thanks,
Linda
1 of 1 8/11/2004 3:40 PM

RE:Pender County Government Complex
Subject: RE: Pender County Government Complex
From: "Paul Parker" <[e-mail]>
Date: Wed, 11 Aug 2004 08:54:34 -0400
To: "'Linda Lewis <[e-mail]>
Linda, I e-mailed Mark and requested he reply straight back to you and copy
me on Monday.
-----Original Message-----
From: Linda Lewis [mailto:[e-mail]]
Sent: Monday, AugusC 09, 2004 8:19 AM
To: Paul Parker
Cc: Mark Walton
Subject: Pender County Government Complex
I would like to know the status of this project. It has been about 6
months since Mark was given the go-ahead to prepare the stormwater plans
to address the violations. I have not heard anything since February.
Please update and provide an expected submittal date.
Thanks,
Linda
1 of 1 8/11/2004 9:14 AM

Re: Pender County Government Complex
Subject: Re: Pender County Government Complex
From: Linda Lewis <[e-mail]>
Date: Tue, 10 Feb 2004 12:33:58 -0500
To: Paul Parker <[e-mail]>, Mark Walton
<walton8 @bellsouth.net>
Mr. Parker,
Thanks for the update. Since there was another engineer originally involved in the
process, I will copy Mark with this email and request that he come in for a
meeting prior to getting started on the plans so that there are no misunderstandings
regarding the application.
Linda
Paul Parker wrote:
Linda,
We have given the notice to proceed to Walton Engineering to prepare the
Stormwater Permit Modification for our NOV at the Pender County Government
Complex. A Plan of Action and time frame will be submitted as soon as possible.
Paul Parker
Assistant County Manager
PH: [phone]
FAX: [phone]
1 of 1 2/10/2004 12:34 PM

IN T
COUNTY MANAGER'S OFFICE
807 S.WALKER STREET
POST OFFICE BOX 5
pErNDEA BURGAW,NORTH CAROLINA 28425 --------------------
TELEPHONE[phone] FAX[phone]
December 5, 2003
Mr. Rick Shiver
Water Quality Regional Supervisor
N.C. Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Subject: Notice of Violation
Stormwater Permit No. SW8 910403
Dear Mr. Shiver:
Please accept my apology for the timeliness of this response to your letter of October 14, 2003.
Upon receipt of notification of the Notice of Violation, I immediately contacted Mr. Jim Honeycutt,
whom to my knowledge, had submitted the initial permit modification request. After discussions with
Mr. Honeycutt, a site visit/meeting was held with Linda Lewis on or about October 30, 2003, in order to
help establish the components of work that would need to be accomplished in order to correct the
situation. In my opinion, the meeting went very well, and I left it with an understanding of the necessary
steps in order to go forward. Ms. Lewis was very helpful in working with me and Mr. Honeycutt.
I solicited an engineering proposal from Mr. Honeycutt for the services necessary to bring the sites
into compliance. Additionally, I met with members of the Board of County Commissioners in order to
brief them on the Notice and the steps that would be necessary for Pender County to take in order to
become compliant. It is the general practice in Pender County to seek at least two proposals on
engineering services. It is the seeking of that second proposal that delayed my response to your original
letter.
Included for your review are two engineering proposals to accomplish the necessary tasks to bring
Pender County into compliance. These proposals will be presented to the Pender County Board of
Commissioners on December 15, 2003. It is expected that the Board of Commissioners will authorize a
contract with one of the parties on that date.
Depending on availabilities due to the holidays, the next step that I propose is to have another
timelines for the accomplishment of the various components of
short meeting with Ms. Lewis to agree to I
work. At that time, the proposed plan of action to bring Pender County into compliance will have
verifiable dates that your office should be able to track.

Thank you for your patience as I have worked to resolve the issues that have brought Pender
County into this state of non-compliance. I look forward to working with Ms. Lewis over the next several
months in order to resolve this matter. Please advise if I need to provide any additional information.
Sincerely,
Andy Hedrick
County Manager

flcv .05 03 04: 33p J. Honeycutt (9101350-0631 p. 2
�Co�osal 1
HONEYCUTT ENGINEERING CO.
CONSULTING ENGINEERS
610 HIDDEN VALLEY ROAD
WILMINGTON,NC 28409
910-350-W31
November 5, 2003
Mr, Andy Hedrick, County Manager
Pender County
P.O. Box 5
Burgaw, NC 25425
Re: Pender County Government Complex
Proposal for Engineering Work
Dear Mr. Hedrick:
Honeycutt Engineering Company(HEC) is pleased to provide a proposal for professional
services associated with the above project. Based on the maps you provided and
discussions we had,we propose to provide the following:
1. Surveying of the existing pond and area immediately adjacent to the pond in order to
provide an as-built drawing of existing conditions.
2. Topographical survey of rear property including location of any wetlands delineated by
wetlands specialist. This survey will extend 100' beyond the rear property line
originally shown on drawing C2 as phase 2.
3. Delineation/flagging by a wetlands specialist of all wetlands on rear portion of site to
include 100' beyond the property line originally shown on drawing C2 as phase 2,
including completion of wetlands data forms, submittal of wetland delineation package
and review/approval with Corp of Engineers.
4. Work necessary to obtain City of Burgaw zoning approval.
5. Preparation of engineering design and plans for a new storm water pond and
modifications to existing storm water pond.
6. Work necessary to obtain an approved modified State Storm water permit.
7. Work necessary to obtain an approved Sedimentation Erosion Control permit.

"loy 05 03 04: 33p J. Honeycutt (9101350-0631 p. 3
Timeline for Work Completion:
Wetlands Specialist—3 weeks from notification assuming we can get Corp of Engineers
to review in a timely manner.
Surveyor—3 weeks upon completion of wetlands being flagged.
Engineering/Drafting—4 weeks from receipt of topographical and wetlands delineation
information to submittal for Stormwater Approval.
Stormwater Permit—90- 180 days from submittal to approval.
Sedimentation Erosion Control Permit -30 -60 days from submittal to approval.
Fee Arrancement:
NOTE: This entire proposal is based on the assumption that the wetlands area is
relatively small.
The work done by Honeycutt Engineering will be billed monthly at an hourly rate of$45.00
per hour for draffing/administration and $90.00 per hour for Engineering work. All other
disciplines (surveyor and wetland specialist)will be billed at time of work completion at our
cost plus a 16% administrative handling charge.
The total fee for the work on this site is $21,050.00
Engineering not to exceed $12,000.00
Surveying hourly not to exceed $6000.00+15% 6,900.00
Wetlands Specialist 1000.00+15% 1,150.00
Reimbursables (copies, permit app., etc.) 1,OOO.00 allowance)
Total Cost $21, 050.00
If you have any questions or need any additional information, please contact me.
Sincerely D
59,ff�' 7 G.
James R. Honeycutt, Jr. P.E.
If this proposal is acceptable, please sign and fax a copy of the letter agreement to our
office at(910) 350-0631.
Signature of Owner, Officer or Authorized Agent
Date

Nov 05 03 04: 33p J. Honeycutt (910) 350-U631 p. 4
1
The proposal submitted was essentially done preparing for `worse-case scenario". For
example* if the calculations snow the existing pond to be inadequate, a nm-., pond Will
have to be designed. Not having to design a new pond would result in a savings of at
least$2000.00 in engineering costs.
If the wetlands are scattered about the rear property then the siting of the pond(s) will
become more difficult. Routing of the water into the pond(s) will become more difficult.
Large amounts of wetlands may make the project unfeasible.
I allowed for three meetings with Burgaw zoning to work out any potential problems. Not
having to meet that many times will result in savings to you.
I included a contingency of$2000 over and above what we think it will take to actually do
the work. Some jobs just take longer than others. if all goes well this contingency may
not be needed. On the other hand, assume the existing pond is not adequate. It is my
assumption that I can design a new pond that will meet today's requirements and will fit
into the existing area. If this is not the case we both have problems.
it is my intent to bill you only for those hours worked, but I also feel that I must allow
enough time to complete the job.
Keep in mind that we are dealing with numerous unknowns at this point which makes for
a difficult idea of what this job entails. Once the wetland specialist flags the wetland
areas and the surveyor does his part then things will be a little more clear at that time.
Until then we need to prepare for the worst and hope for the best

?YoiPns-I Z
WALToNENGMER-17VG
November 24, 2003
Mr. Andy Hedrick
Pender County Manager
PO Box 5
Burgaw,NC 2825
Re: Proposal for Modification of Stormwater Management]Permit No. SW8 910403
Dear Mr. Hedrick,
I am pleased to submit this proposal for the following services at the Pender County
Government Complex at 801 S. Walker Street in Burgaw,NC.
The proposed work has been itemized below. The work is broken into two phases. Phase 1
involves the work required to bring the existing construction(not including mobile offices and
gravel parking)into compliance per the NC Division of Water Quality requirements. Phase 2
involves the work required to provide stormwater management for the vacant lot behind the
existing Health and Human Services building and the existing Agriculture building. phase 2
also includes stormwater management for the existing mobile offices and gravel parking.
Phase 3 is for coordination with the Town of Burgaw for both Phase 1 and Phase 2.
Please understand that the work required in Phase 1 will be determined only after Items 1 &2
have been completed. At that point, it will be known whether or not the existing stormwater
pond has to be enlarged. If the existing pond is sufficient as is, Item 4 will be required(but
not Item 4 Alternate). If the existing pond is insufficient, Item 4 Alternate will be required
(but not Item 4 or Item3). The estimated total cost for Phase 1 $12,550.
The estimated total cost of Phase 2 is$8,570.
Please understand that actual costs will be billed on the basis of time and materials required to
complete the necessary work because of the uncertain nature of the actual work that will be
required. Actual costs are not expected to exceed proposed costs. Costs in excess of
proposed costs will not be incurred without prior written approval of Pender County.
ITEM# DESCRIPTION ESTIMATED
COST
PHASE 1
1 Survey all features existing site and prepare topographical survey map(by $7,700.00
Registered Land Surveyor).
2 Perform engineering calculations to determine existing impervious surface $650.00
and existing stormwater detention pond capacity.
3 Prepare plans for modifications to outlet of stormwater pond to provide $1,500.00
normal pool elevation of 98.5'.
Tel:[phone] PO Box 895,Burgaw,North Carolina,29425 Fax [phone]

WALToNENGmERwa
4 Prepare Stormwater Permit Modification Application without changing $2,000.00
existing stormwater pond capscity.
4 Prepare Stormwater Permit Modification Application with increased $3,500.00
Alternate stormwater pond capacity.
5 Provide engineering consulting and oversight for construction of $700.00
modifications per the modified Stormwater Management Permit.
PHASE 2
6 Delineation and flagging of wetlands on vacant tract behind existing county $1,000.00
complex.
7 Surveying and mapping of flagged wetlands(by Registered Land Surveyor). $3,300.00
8 Coordinate wetlands delineation,surveying, and Corps of Engineers' $770.00
certification.
9 Design new story water system on vacant tract behind existing County $3500.00
Complex to accommodate stormwater from three existing mobile offices
behind existing Health and Human Services building, existing gravel parking
lot behind existing Health and Human Services building and Agriculture
building, and future impervious surfaces on the vacant tract up to 90%
coverage. Prepare plans and stormwater permit application for same.
OTHER
10 Coordinate with Town of Burgaw regarding construction of modified $1,400.00
stormwater management systems (i.e. detention pond, outlet, etc.).
Again,I thank you for the opportunity to provide this proposal and I hope to be able to
provide the proposed services. If you have any questions, please contact me at 910-259-4800.
Sincerely,
V\,J,13jt;,
X Mark Walton,
Professional Engineer
Tel:[phone] PO Box 895,Burgaw,North Carolina,29425 Fax:[phone]

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CF W Ax�R Michael F. Easley, Governor
621 Q William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
j r
_! Alan W. Klimek, P.E.,Director
5 < Division of Water Quality
Coleen H. Sullins,Deputy Director
Division of Water Quality
October 14, 2003
CERTIFIED MAIL #70021000 0005 2390 1994
RETURN RECEIPT REQUESTED
Mr. Andy Hedrick, County Manager
Pender County
PO Box 5
Burgaw, NC 28425
Subject: NOTICE OF VIOLATION
Pender County Government Complex
Stormwater Permit No. SW8 910403
Pender County
Dear Mr. Hedrick:
On October 10, 2003, Wilmington Regional Office personnel performed a Compliance
Inspection of the subject project, located at 801 S. Walker Street in Burgaw, Pender
County, North Carolina. The-inspection was nerformed to determine the stat;;c of
compliance with Stormwater Permit Number SW8 910403, issued to Pender County on
April 11, 1991.
The project has been found in violation of Stormwater Permit Number SW8 910403 ,
issued pursuant to the requirements of 15A NCAC 2H.1000. The violations found are:
1. Failure to receive a permit modification for the Agricultural Building
Expansion. A permit modification was submitted on October 9, 2001.
Additional information was requested on December 18, 2001, however,
the Division received no response to that request. A permit modification
was never approved.
2. Construction of additional impervious areas that are not treated in either
the existing stormwater pond or a new system, and failure to submit a
modification for the additional impervious areas. Unpermitted gravel
parking lots have been added behind the Health and Human Services
Building and behind the Agricultural Building. The runoff from these
parking lots drains into the County property to the south without benefit of
any permitted stormwater treatment system.
To correct these violations you must :
1. Provide a written "Plan of Action"which outlines the actions you will take
to correct the violations and a time frame for completion of those actions,
on or before November 14, 2003.
2. Submit and follow through with a permit modification to account for the
Agricultural Building expansion and the additional gravel parking lots.
N.C.Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service
Wilmington Regional Office Wilmington,NC 28405 [phone] Fax [phone] pw

Mr. Hedrick
October 14, 2003
Page 2 of 4
During the inspection, staff noted that the water level in the pond was at the overflow
elevation, but nothing was draining through the orifice in the outlet structure into the
road ditch. Based on the original approved plan, the invert of the outlet pipe is 49.2, but
the normal pool elevation is 48.5. This creates an impossible situation where the pond
j can never draw down to the normal pool elevation, therefore the required 1" storage
volume is not being provided. A proposal to correct this must be presented with the
modified application.
Failure to provide the "Plan of Action" by November 14, 2003, or to correct the violations
by the date designated in the "Plan of Action", are considered violations of 15A NCAC
2H.1000, and may result in the initiation of enforcement action which may include
recommendations for the assessment of civil penalties, pursuant to NCGS 143-215.6A.
By copy of this letter to the Pender County Building Inspector, this Office is requesting
that the Building Inspector consider withholding building permits and Certificates of
Occupancy for this project until this matter is satisfactorily resolved.
If you have any questions concerning this matter, please call Linda Lewis at (910) 395-
3900.
Sincerely,
G IC—
Rick Shiver
Water Quality Regional Supervisor
RSS1ad: S:IWQSISTORMWATINOTICE1910403.oct03
cc: Jim Honeycutt, P.E., Honeycutt Engineering (modification consultant)
Phil Norris, P.E., Andrew and Kuske (original consultant)
Pender County Building Inspections
Linda Lewis
Central Office

P. 1
COMMUNICATION RESULT REPORT ( NOV. 4.2002 2:33PM )
TTI NCDENR WIRO
FILE MODE OPTION ADDRESS (GROUP) RESULT PAGE
---------------------------------------------------------------------- — --------- ----------------
477 MEMORY TX 9-3500631 OK P. 3/3
------------------------- •--------------------------------------------------------------------
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL E-2) BUSY
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,'Gc vemor William Cr, Ross Jr., Secretary
FAX COVER SHEET
Date: 6 No. Of Pages: '
To: wt..ewff From: �-;wga
CO: CO:
FAX#: -. 3/ FAX#: [phone] „
1
I
REMARKS:
I I
127 GardIgal D'ivs Extension,Wilmington,N.C.20405-3945 Telephone[phone] Enx(910)3SM84
An Equal Opportunhy Afiirmative Aetion Employer
I
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OF 1NATF Michael F, Easley, Governor
�O� vG William G. Ross, Jr., Secretary
co y North Carolina Department of Environment and Natural Resources Ja
r
pI io Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
Wilmington Regional Office
December 18, 2001
Mr. Martin Beach, County Manager
Pender County
108 S. Cowan Street
Burgaw,NC 28425
Subject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 910403 Modification
Pender County Government Complex
Pender County
Dear Mr.Beach:
The Wilmington Regional Office received a modification to the Stormwater Management Permit Application
for Pender County Government Complex on October 9, 2001. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue the stormwater
review:
1. Please add the dimensions of the new Agriculture building addition.
2. Please show roof drain downspout locations or sufficient grading to indicate how all roof runoff gets
into the collection system.
3. Please delineate all wetlands on site,disturbed or undisturbed,or note on the plans that none exist.
4. Are the pond contours shown based on an as-built survey or what was previously proposed and
approved?Have the pond elevations been confirmed via an as-built survey?
5. Please initial the design requirements on page 2 of the supplement.Even though the engineer for this
project is not the same as for the original project,you must confirm that the current pond meets the
design requirements. Of course,the forebay and 6:1 shelf are not applicable, since this pond was
permitted well before these items were required. By simply providing the required calculations
requested in Item#7 below, all'of the the requirements on the supplement can be initialed.
6. I have only one copy ofthe original sheet C2,the detail sheet.This detail sheet contains the approved
cross-section of the pond,elevations,and orifice size.If your copy of the originally approved plans
is missing,please have the engineer provide me with two copies of the detail sheet. I will add them
to sheet C 1 to complete the approved plan set.
7. Please provide revised,sealed pond design calculations to indicate thatthere is sufficient surface area
and volume to accommodate the additional impervious area.
8. Please provide permanent pool dimensions to the extent that you can.Provide all radii and tangents.
NCDEM
N.C.Division of Water Quality 127 Cardinal Drive Extension Wilmington,N.C.28405 [phone] Fax[phone] Customer Service
800-623-7748

Mr. Beach
December 18, 2001
Stormwater Project No. SW8 910403 Modification
---------------------------------------------------
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 January 18, 2002, 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 Division is allowed 90 days from the receipt of a
completed application to issue the permit.
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.
Please reference the State assigned proj ect 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(910) 395-3900.
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\910403M.DEC
cc: Linda Lewis
Jim Honeycutt, P.E.

Date Received Fee Paid Permit Number
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMUrr PERMIT APPLICATION FORM
This form may he photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name(specify the name of the corporation,individual,etc.who owns the project):
PENI)IM . Co0rNTY
2. Print Owner/Signing Official's name and title(person legally responsible for facility and compliance):
MAk_n 4 BEACH I COUNTY MANA6E12
3. Mailing Address for person listed in item 2 above:
103 5, COWAN ST2-EET
City: U R-6 A W State: N C. Zip: 28 4 ZS
Telephone Number: ( 9 10 ) 259-12-oo
4. Project Name(subdivision,facility,or establishment name-should be consistent with project name on
Plans,specifications,letters,operation and maintenance agreements,etc.):
F S A A O Dm o N To A 6 21 C UI.TU R-E 81. JLO1 ry 10
5. Location of Project(street address):
$01 S, W A I.IC..I-:2 'S Q_G E T
City: 8 U P-roA UP WC, 2$42 6 County: P E N 1)E2.
6. Directions to project(from nearest major intersection):
w Y 11? S. WAL-KER '/z rrn1LE,- OM LEFT
7. Latitude: -17° 55 r W. Longitude: 3 4-0 3 31 of project
$. Contact person who can answer questions about the project:
Name: W A fUew W I LSO N Telephone Number: Q►0 7(0 �,— OO(p�-
IL PERMIT INFORMATION:
1. Specify whether project is(check one): New Renewal !/ Modification
Form SWU-101 Version 3.99 Page 1 of 4

Z If this application is being submitted as the result of a renewal or modification to an existing permit,list the
existing permit number S W$ 9 104 03 and its issue date(if known)
3. Specify the type of project(check one):
Low Density _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
1-877-623-6749.
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 stormwat er management for the project.
WET POND
2. Stormwater runoff from this project drains to the CAPE F E A 2 River basin-
3. Total Project Area: '7 1 8 5 acres 4- Project Built Upon Area: '/1D
S. How many drainage areas 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.
.61
WOW
Receiving Stream Name O S G OOD 82.RN t H
Receiving Stream Class G S
Drainage Area
Existing hn ervioue Area Is?-, 2 3 9
Pro osed Impervious*Area 3 ooO .
Im envious"Area(total)
>. } A�w .
On-site Buildings
On-site Streets
On-site Parking 1 O$ 19
On-site Sidewalks
Other on-site
Off-site
Total: l 3 5 2 3 Total:
*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 off-site impervious area listed above derived?
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 or 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.
5. All permitted runoff from 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 perfo�mince 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($)listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at(919)733-5083 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 10b 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 4

Sep 19 01 12: 27p Jim Honeycutt [910) 350-0631 p. 9
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.
Initials
• Original and one copy of the Stormwater Management Permit Application Forst W-TR-
One copy of the applicable Supplement Form(s)for each BMMP �,TQ
• Permit application processing fee of$420(payable to NCDENR) W IT R-
• Detailed narrative description of stormwater treatment/management WI+ITQ.
Two copies of plans and specifications,including. _ (LCTI,
-Development/Pro*t name
Engineer and firm
Legend
-North arrow
-Scale
-Revision number&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)
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). H C rJ try C.0T't E MG i n1 E rc fZ 6 Co(n P A N Y
Mailing Address: P.D. BOX )503ta
City: W i L M I N G To N State: tJ.C. Zip: a 8 40 8
Phone: L__-°E i o ) 350- Oho 3) Fax 10 350- 0 31
VIII. APPLICANT'S CERTIFICATION
1,(print or type name of person listed in General Infomatim item 2)
certify that the information included on this permit application form is,to the best of my know edge,correct and
that the project will be constructed in conformance with the approved plans,that the required deed restrictions
and protective cov is will be recorded,and that the proposed project complies with the requirements of 15A
NCAC 2H.1000.
Signature. Date:
Form SWU-101 Version 3.99 Page 4 of 4

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORNrvVATER I-.4ANAG04ENT PEMMU APPLICATION FORM
STET ??ETENTJL0N BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT p4FORmAuON
Project Name: F5A ADDITION To A GR 1 cu(_TU2E 8ulLD1n16
Contact Person: W AQ.Q,EN W I L-Soul Phone Number: ( 910 ) -7(0 Z-0050 9-
For projects with multiple basins, specify which basin this worksheet applies to:
elevations
Basin Bottom Elevation 4 G. ft. (floor of the basin)
Permanent Pool Elevation — t4 A ft. (elevation of the orifice)
Temporary Pool Elevation 47.5 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 10 , I LO O sq. ft. (water surface area at the orifice elevation)
Drainage Area tP• 02< ac. (on-site and off site drainage to the basin)
Impervious Area 3 . 10 ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume tJ cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 9�o 2_9 5 cu. ft. (volume detained above the permanent pool)
Forebay Volume 01A cu. ft. (approximately 20%of total volume)
Other parameters Other p 2_31 (surface area to drainage area ratio from DWQ table)
SA/DDiameter of Orifice 15 1`6 in. (2 to 5 day temporary pool draw-down required)
Design Rainfall l in.
Design TSS Removal 2 cl O % (minimum 85% required)
Form SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
1 When using the Division SAIDA tables,the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Storrwater Best Management Practices Manual
(N-C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form,the agent may initial below. If a requirement has not been met,attach justification.
Applicants Initials
a. The permanent pool depth is between 3 and.ti-feet(required minimum of 3 feet).
tv1:4 b. The forebay volume is approximately equal to 20%of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
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.
IV) i 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.
j. A trash rack or similar device is provided for both the overflow and orifice.
A,, ;4 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 prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
Lam, E D;Df,4� 1J�5l� PC
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
Tile wet detention basin system is defined as the wet detention basin,pretreatment including forebays and the
vegetated filter if one is provided.
This system(check one) 0 does 0 does not incorporate a vegetated filter at the outlet.
This system(check one) 0 does 0 sloes 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 basin system for sediment accumulation,erosion,trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately,re-seed as necessary to maintain good vegetative cover,mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system(i.e. catch basins,piping, swales,riprap,etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth(see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream,etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth readine and not readilv penetrate into accumulated sediments.
When the permanent pool depth reads 4.5 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads t4k feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
0 f Permanent Pool Elevation 48.5
Sediment Re oval El. ,75
_______ ____ .__ Sediment Removal Elevation 4+ 75%
Bottom Ele ation S % ---------------------------------------------- ------
' Bottom Elevation 4 Z -5 +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 practical.
Form SWU-102 Rev 3.99 Page 3 of 4

Sep,. 19 01 12: 26p Jim Honeycutt [phone] p. 5
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 narne:_MAN—n NI Uwa:A 1- _
Title: e5d U t4T Y &A A.j4A
Address: l <. WAW is7
Phone: A W• s
Signature: ,
Date:
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, �6�IM- l-IRO u„ra�
a Notary Public for the State o ,
County of OiNI-`L , do hereby certify,that
personally appeared before me this` day of , ?( ,and acknowledge the due
ex an of the fozng et detention basin maintenance requirements. Witness my hand and official seal,
N
SEAL
My commission expires, . a 3 -0 b
Form SWU-102 Rev 3.99 Page 4 of 4