SW8060706_CURRENT PERMIT_20060728

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�(� Zl/�
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
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July 28, 2006
Mr. Ted Kaniuka, Superintendent
Pender County Schools
925 Penderlea Highway
Burgaw, NC 28425
Subject: Stormwater Permit No. SW8 060706
New Topsail High School
High Density Project
Pender County
Dear Mr. Kaniuka:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for New Topsail High School on July 19, 2006. Staff review of the plans and
specifications has determined that the prOJct, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 060706
dated July 28, 2006, for the construction of the subject project.
This permit shall be effective from the date of issuance until July 28, 2016, and shall be subject
to the conditions and limitations as specified therein. Please pay special attention to the
Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems. 0
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 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands
are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact Paul Bartlett, or me at [phone].
Sincerely,
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/ptb: S:IWQSISTORMWATERIPERMIT1060706.july06
cc: J. Phillip Norris, P.E., Norris, Kuske & Tunstall Consulting Engineers, Inc.
Ren Holt, Pender County Building Inspections
Paul T. Bartlett, P.E.
Wilmington Regional Office
Central Files
o c Nhcarolina
; atumlly
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Internet: www.ncwateMualily.org Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recyded110% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW8 060706
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
Ted Kaniuka and Pender County Schools
New Topsail High School
Pender County
FOR THE
construction, operation and maintenance of three infiltration basins 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 July 28, 2016, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from a total of 585,053 square
feet of impervious area (Basin 1 A & 1 B = 284,885 sq ft; Basin 2 = 80,626 sq ft;
Basin 3 = 219,542 sq ft). Each of the three basins must be operated with a 50'
vegetated filter.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans..There is no allotment for future built -upon
area at the site.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 060706
6. The following design criteria have been provided in the infiltration basins and
must be maintained at design conditions:
Basin#1A&B Basin #2 Basin #3
a. Drainage Area, acres: 10.74 3.43 5.76
Onsite, ft2: 467,834 149,411 250,906
Offsite, ft2: None None None
b. Total Impervious Surfaces, ft2: 284,885 80,626 219,542
OS Buildings, ft2: 123,275 43,600 None
OS Parking, ft2: 126,326 22,216 212,342
OS Sidewalks, ft2: 35,284 14,810 7,200
C. Design Storm, inches: 1.5 1.5 1.5
d. Basin Depth, feet: 2.0 1.0 0.8
e. Bottom Elevation, FMSL: 56.0 53.0 54.0
f. Bottom Surface Area, ft2: 25,226 15,694 34,487
g. Bypass Weir Elevation, FMSL: 58.0 55.0 54.8
h. Permitted Storage Volume, ft3: 67,850 15,694 28,550
i. Type of Soil: Sand Sand Sand
}. Expected Infiltration Rate, in/hr: 14.1 15.0 23.4
k. Seasonal High Water Table, 53.7 49.7 51.5
FMSL:
i. Time to Draw Down, hours: 2.3 0.8 0.4
M. Receiving Stream/River Basin: UT Old Topsail Creek 1 Cape Fear
n. Stream Index Number: 18-87-12
o. Classification of Water Body: "SA; HQW"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
c. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
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.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 060706
5. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
6. 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.
7. 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.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
9. 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.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. 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.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
III. GENERAL CONDITIONS
1. This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee mu st
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, documentation
from the parties involved, and other supporting materials as may be appropriate.
The approval of this request will be considered on its merits and may or mays not
be approved. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 060706
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
Permit issued.this the 28th day of July 2006.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
167`Hlan VV. KIImeK, F'� ., uirector
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 060706
Page 1 of 2
New Topsail High School
Stormwater Permit No. SW8 060706
Pender County
Designer's Certification
I, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 C60706
Page 2 Of 2
Certification Requirements:
.1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10, The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved, plans.
CC' NCDENR-DWQ Regional Office
Ren Holt, Pender County Building Inspections
Page 7 of 7

NKT #05220
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
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Pender County Schools
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Ted Kaniuka, Superintendent
3. Mailing Address for person listed in item 2 above:
925 Penderlea Highway
City: Burgaw State: NC Zip: 28425
Telephone Number: [phone]
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
New Topsail High School
5. Location of Project (street address):
US 17
City: Hampstead County: Pender
6. Directions to project (from nearest major intersection):
From intersection of US 17 & NC 210 in Hampstead, take US 17 north for 2.75 miles. The site is
on the left.
7. Latitude: 340 23` 40" Longitude: 771140' 49" of project
8. Contact person who can answer questions about the project:
Name: J. Phillip Norris, P.E. Telephone Number: [phone]
H. PERMIT INFORMATION
i
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
Existing permit number NIA And its issue date (if known) NIA
3. Specify the type of project (check one):
Low Density X High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks): 14I�''J�j� !,
CAMA Major X Sedimentation/Erosion Control X 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
I In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
A series of infiltration basins.
2. Stormwater runoff from this project drains to the Cape Feat' River Basin.
3. Total Project Area: 29.9 AC 4. Project Built Upon Area: 44.9 %
5. How many drainage areas does the project have? 3
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 int stme format as below.
Basin Information
na = 4nq7l,ana
rea .
Receiving Stream Name
UT Atlantic Int acoastal aterway
UT Allanti Intracoasta a erway
Receiving Stream Class
SA'
SA -Q
Drainage Area
467,834 SF / 10.74 AC
149,411 SF 13.43 AC
Existing Impervious * Area
0
0
Proposed Impervious* Area
284,885 SF 16.54 AC
80,626 SF 1 1.85 AC
% Impervious* Area total
60.89%
53.94%
Impervious* Surface Area
Drainage Area I
Draina e Area 2
On -site Buildings
-123,275 SF 12.83 AC
43,600 SF 1 1.0 AC
On -site Streets
0
0
On -site Parking
126,326 SF 12.90 AC
22,216 SF 10.51 AC
On -site Sidewalks
35,284 SF 10.81 AC
14,810 SF / 0.34 AC
Other on -site
0
0
Off -site
0
0
Total: 284,885 SF 16.54 AC
Total: 80,626 SF 1 1.85 AC
* 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

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Basin information
Gina e Area 3
Receiving Stream Name
UT Atlantic Intracoastal Waterway
Receiving Stream Class
SA
Drainage Area
f 250,906 SF 15.76 AC
Existing Impervious * Area
0
Proposed Impervious* Area
219,542 SF 15.04 AC
% Impervious* Area total
87.5%
Impervious* Surface Area
Drainage Area 3
On -site Buildin s
0
On -site Streets
0
On -site Parking
212,342 SF 14.87 AC
On -site Sidewalks
7,200 SF 10.16 AC
Other on -site
0
Off -site
0
Total: 219,542 SF 15.04 AC
ti
Form SWU-101 Version 3.99 Page p of 4 Coil

How was the off -site impervious area listed above derived? NIA
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.
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 585,053 square feet ofany 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 runofffrom 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 [phone] for
the status and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
'3,
Form SWU-101 Version 3.99 Page 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.
• 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 1 management
• Two copies of plans and specifications, including:
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
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.
J. Phillip Norris, P.E.
Designated agent (individual or firm): Norris, Kuske & Tunstall Consulting Engineers, Inc.
Mailing Address: 902 Market Street
City: Wilmington State: NC Zip: 28401
Phone: [phone] Fax: [phone]
VIII. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, item 2) Ted Kaniuka, Superintendent ,
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.1000. r\ -
Signature:
Form SWU-101 Version 3.99 Page 4 of 4
Date: (9 —20-- a C

a
N KT #05220
Permit No.�2W mago
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater application form, an
infiltration basin supplement for each system, design calculations, soils report and plans and
specifications showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: New Topsail High School
ContactPerson:Ofn5,
Phillip P.E. Phone Number: 9{ 10) 343-9653
This worksheet applies to: Basin No. 1A & 1 B in Drainage Area 1
* identified on plan) (from Form SWU-101)
II. DESIGN INFORMATION — Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable
source of soils information. All elevations shall he in feet mean sea level (fmsl).
Soils Report Summary
Soil Type Sand
Infiltration Rate 14.1 Dn/hrr cf/hr/sf (circle appropriate units)
SHWT Elevation 53.7 fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm 1.5 inch (L S inch event for SA waters, 1 inch event for others)
Design Volume 52,684 c.f.
Drawdown Time 0.07 Days
Basin Dimensions
Basin Size ft. x ft. = 25,226 sq. ft (bottom dimensions)
Basin Volume Provided 67,850 c.£
See Calculations & Site Plan
Basin Elevations
Bottom Elevation 56.0 fmsl
Storage Elevation 58.00 fmsl
Top Elevation 58.50 fmsl
Form SWU-103 Version 3.99
Page 1 of 3

III. 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. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material DWQ approval has been obtained.
f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
g. Drainage area for the device is less than 5 acres.
h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters). Design volume and infiltration calculations attached.
j.
System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k.
All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
I.
A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m.
Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches.
or dense vegetative cover is provided
n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
�---
length is 50 feet for SA waters, 30 feet for other waters
o.
Flow distribution mechanism within the basin is provided.
p.
A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
r.
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s.
Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Version 3.99 Page 2 of 3

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six -inches, and remove trash as needed.
After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be
restored to the original design depth without over -excavating. Over -excavation may cause the required
water table separation to be reduced and may compromise the ability of the system to perform as
designed. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a
manner that will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or
stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads f• S feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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 and Title: Ted Kaniuka, Superintendent
Address: 925 Penderlea Highway Bur aw, NC 28425
Phone: [phone] Date: ZO —D 6
Signature
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.
1, i � �+� G—Q� �kke� , al Notary public for the State `of f � C rtk Caro f h d. County of
Q v &4Z ✓ , do hereby certify that �he o N c re_ S- �t1 i u_ko personally appeared before me this
day of } utA e- lco to , and acknowledge the due execution of the foregoing infiltration
44Notary
ta�ttt`s� Witness my hand and official seal.
Public • North Carolina 4�`Z H CO NTY� lily co mis i n expiresdo
Form SWU-103 Version 3.99 Page 3 of 3

CC'' ,, N KT #05220
PermitNo.Sve CGO706
State of North Carolina (to be provided by UWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater application form, an
infiltration basin supplement for each system, design calculations, soils report and plans and
specifications showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: New Topsail High School
Contact Person: J. Phillip Norris, P.E. Phone Number: 9( 10) 343-9653
This worksheet applies to: Basin No. 2 in Drainage Area 2
(as identified on plan) (from Form SWU-101)
II. DESIGN INFORMATION — Attach supporting calculationstdocumentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable
source of soils information. All elevations shall be in feet mean sea level (f nsl).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
Sand
15.0 In/ltr r cf/hrlsf (circle appropriate units)
49.7 fmsl (Seasonal High Water Table elevation)
1.5 inch (1.5 inch event for SA waters, 1 inch eventfor others)
11,798 c.f.
0.033 Days
* ft. x * ft. = 15,694 sq. ft (bottom dimensions)
15,694 c.f.
*See Calculations & Site Plan
53.0 fmsl
54.00 fmsl
57.0 fmsl
Form SWU-103 Version 3.99 Page 1 of 3

III. REQUMED 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.
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material DWQ approval has been obtained.
f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
g. Drainage area for the device is less than 5 acres.
Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters). Design volume and infiltration calculations attached.
j.
System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k.
All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
I.
A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m.
Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches.
or dense vegetative cover is provided
n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters
o.
Flow distribution mechanism within the basin is provided.
p.
A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
r.
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s._
Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Version 3.99 Page 2 of 3

. IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six -inches, and remove trash as needed.
After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be
restored to the original design depth without over -excavating. Over -excavation may cause the required
water table separation to be reduced and may compromise the ability of the system to perform as
designed. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a
manner that will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or
stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads -3 .7 5 feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H A 000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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 and Title: Ted Kaniuka, Superintendent
Address: 925 Pendedea Highway Burgaw, NC 28425
Phone: 910-259;2187 Date:
Signature:
Note. The legally responsible party should not bYa homeowners association unless more than 50% of the fors have been sold
and a resident of the subdivisiont. has been named the president
1, 1121-6t[ W • GyA A e +r , a Notary Public for the State of JNc rf� 0,r o k hd, Countyof
do hereby certify that '_F'ke 0 A o rQ_ S. Ka h ; „Jeo. personally appeared before me this
�t day of Ju 4A Q "tt 0 lO , and acknowledge the due execution of the foregoing infiltration
Witness my hand and official seal.
OFFICIAL SEAL 1
Notary Public North CaroliUcll
SE ` • . PFN Y ommission
Signature,,
Form SWU-103 Version 3.99
Page 3 of 3
I'3—C 1

N KT #05220
Permit No. 5 w e CG07D 6
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater application form, an
infiltration basin supplement for each system, design calculations, soils report and plans and
specifications showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: New Topsail High School
Contact Person: J. Phillip Norris, P.E. Phone Number: A910) 343-9653
This worksheet applies to: Basin No. 3 in Drainage Area 3
(as identified on plan) (from Form SWU-101)
11. DESIGN INFORMATION — Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable
source of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type Sand
Infiltration Rate 23.4 In/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 51.50 fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm
1.5
inch (1.5 inch event for SA waters, 1 inch event for others)
Design Volume
28,227
c.f.
Drawdown Time
0.017
Days
Basin Dimensions
Basin Size
ft, x ft. = 34,487 sq. ft (bottom dimensions)
Basin Volume Provided
28,550
c.f.
*See
Calculations & Site Plan
Basin Elevations
Bottom Elevation
54.0
find
Storage Elevation
54.8
fmsl
Top Elevation
55.50
fmsl
Form SWU-103 Version 3.99 Page 1 of 3

III. 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. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material DWQ approval has been obtained.
f System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
g. Drainage area for the device is less than 5 acres.
h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters). Design volume and infiltration calculations attached.
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches.
or dense vegetative cover is provided
n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters
o. Flow distribution mechanism within the basin is provided.
p. A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
r. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Version 3.99 Page 2 of 3

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six -inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be
restored to the original design depth without over -excavating. Over -excavation may cause the required
water table separation to be reduced and may compromise the ability of the system to perform as
designed. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a
manner that will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or
stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads L. 5 feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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 and Title: Ted Kaniuka, Superintendent
Address: 925 Penderlea Highway Burgaw, NC 28425 _
Phone: [phone] Date: G _ Z�) --()6
Signature:
Note. The legally responsible party should not be a homeowners association unless more than 50°Yo of the lots have been sold
�` and a resident of thesubtlivision has been named the president. f f
1, C � � T& `t� W . "esol'r� h e ,, a Notary Public for the State of 1 n / � c r_f � 0- -� i i k a -- County of
R � � e ✓ , do hereby certify that _Tk o Aore '�'. LG h i (JT` personally appeared before the this
764' day of `tin e -Zb o C , and acknowledge the due execution of the foregoing infiltration
basin maintenance requirements. Witness my hand and official seal.
SEA-L- —_.
g ublic _
l'EIV CO h Caroiina
q�7=terN W.
3
ommissi0f, ' s 113109
ER
expires f - 3 "69
Page 3 of 3

, .TT

•
Y1
State Stormwater Permit No. SWS 060706
New Topsail High School
Pender County
Designer's Certification
State Stormwater Management Systems
Stormwater Permit Number SWB 060706
October 23 2012
f /M
1, John Phillip Norris , as a duly registered Professional Engineer
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project, New Topsail High School, for Pender County
Schools, (Project Owner) hereby state that, to the best of my abilities, due care and
diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the
approved plans and specifications.
Required Items to be checked for this certification to be considered complete are on
page 2 of this form.
Noted deviations from approved plans and specifications:
Signs
Regi;
Date
Page 2 of 3
SEAL
ECEI!/E
OCT 19 2012
BY:
PF

.� - _ _
.h �
J
�. �� Vim,, �,;�� Y'�� -
rti� tiA ` w �
,. I
ti ' � � r
y
f
. W �

40
State Stormwater Management Systems
Stormwater Permit Number SW8 060706
October 23. 2012
Certification Requirements:
The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet/bypass structure is located per the approved plans.
6. A Trash Rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3.1.
9. The inlets are located per the approved plans and do not cause short-
circuiting of the system, or baffles have been provided.
10. The permitted amounts of surface area and/or volume have been
provided.
11. Required drawdown devices are correctly located and sized per the
approved plans.
All required design depths are provided.
All required parts of the system are provided, such as a vegetated shelf,
wetlands plantings, forebay and vegetated filter.
The required system dimensions, as shown on the approved plan, are
provided.
CC.' Pender County Planning
NCDENR DWO Regional Office
Page 3 of 3

NORRIS & TUNSTALL
CONSULTING ENGINEERS, P.C.
Brunswick Office : 1429 Ash -Little River Road, Ash NC 28420
J. Phillip Norris, P.E.
John S. Tunstall, P.E.
910-287-5900 (office) 910-287-5902 (fax)
LETTER OF TRANSMITTAL
To: Ms. Linda Lewis
Date: October 25, 2012 7FJob
No.12083
NC DENRIDiv of Wtr Qlty/Surface Wtr Protection
Subject: New Topsail High School
127 Cardinal Drive Extension
Pender County Schools
Wilmington, NC 28405-3845
WE ARE SENDING YOU VIA MAIL
® ATTACHED ❑ UNDER SEPARATE COVER
❑ SHOP DRAWINGS ❑ PRINTS ❑ TRACINGS
❑ SPECIFICATIONS ❑ DISKS ❑ COPY OF LETTER
❑
FAX TRANSMITTAL: NUMBER OF PAGES
INCLUDING THIS TRANSMITTAL
Call 910-287-5900 if you have any difficulty
receiving this message.
COPIES
DATE
NO.
DESCRIPTION
1
10-25-12
Designer's Certification
__..._UCT
29 2012
BY, _ . ...
® AS REQUESTED ❑ FOR REVIEW AND COMMENT ❑ FOR APPROVAL
❑ FOR YOUR USE ❑ FOR BIDS DUE ❑ YOUR PRINTS LOANED TO US
REMARKS:
CC: Mr. Rick Dutka 1 Pender County Schools sIGNED
Phillip rris,
CONFIDENTIAL AND PRIVILEGED; Information contained in this document is privileged and confidential, intended for the sole use of the
addressee. If you are not the addressee or the person responsible for delivering it to the addressee you are hereby notified that any dissemination,
distribution or copying of this document is strictly prohibited. If you have received this document in error please immediately notify the sender and
return to the address above.