20081167 Ver 2_401 Application_20120312

WITHERS &— RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
1410 COMMONWEALTH DRIVE SUITE 1o1
WILMINGTON NORTH CAROLINA 28403
[phone]
FAX [phone]
TO NC Division of Water Quality - 401 Wetlands Unit
16r,o Mail Service Center
Raleigh NC 27699
WE ARE SENDING YOU
❑ Shop Drawings
❑ Copy of Letter
0
LFE711E (IL)'F TF AN -) M 17ITQL
DATE 3/3/12
66 NO 03120031 00
ATTENTION Mr Ian McMillan
PHONE #
91 807 6364
RE
Wilmington International Airport - Kerr Ave Security Fence
PCN Submittal
Wilmington International Airport — Kerr Ave Security Fence PCN
1
2/28/12
® Attached ❑ Under separate cover via
❑ Prints ❑ Plans ❑ Samples
❑ Change order ❑ Diskette ❑
the following items
❑ Specifications
COPIES
DATE
NO
DESCRIPTION
3/3/12
0-3120031 oo
Wilmington International Airport — Kerr Ave Security Fence PCN
1
2/28/12
Check #53080 for $570 oo Application Fee
1
3/3/12
0312003100
CD of PCN
THESE ARE TRANSMITTED as checked below
® For approval ❑ Approved as submitted
❑ For your use ❑ Approved as noted
❑ As requested ❑ Returned for corrections
❑ For review and comment ❑
❑ FOR BIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US
❑ Resubmit
❑ Submit
❑ Return
copies for approval
copies for distribution
corrected prints
REMARKS
UdLe MAR 7 ?n,,)
DEN
LANDS AND STORMWATER BRANCH
COPYTO File SIGNED Troy Beasley
tf enclosures are not as noted kindly notify us at once

WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
March 3, 2012
NC Division of Water Quality
401 Wetlands Unit
Mr. Ian McMillan
1650 Mail Service Center
Raleigh, NC 27699
Re: Wilmington International Airport — Kerr Avenue Security Fence
W &R Project #03120031.00
Dear Mr. McMillan,
On behalf of the Wilmington Airport Authority, we are requesting 401 authorization from
the NC DWQ for 214 if of permanent stream impacts for installation of a culvert for
relocation of the security fence at the Wilmington International Airport. A copy of this
PCN has been provided directly to Mr. Chad Coburn in the NC -DWQ Wilmington Field
Office. Please note that this PCN was previously provided to the Corps of Engineers and
the permit is anticipated to be issued by March 9, 2012.
The project area is ±12.0 acres in size and is located adjacent to North Kerr Avenue, in
Wilmington, New Hanover County (Latitude: 34.277639 °N; Longitude: - 77.889361 °W).
The project is located in the Cape Fear River basin and onsite waters drain to Smith
Creek. The Water Quality Classification for Smith Creek is C; SW and the Stream Index
Number is: 18- 74 -63. The cataloging unit for the site is 03030007.
Proposed Project
The proposed project consists of the construction of a security fence adjacent to North
Kerr Avenue across a UT to Smith Creek in order to meet FAA security requirements.
The existing security fence has repeatedly failed at the stream crossing due to high stream
flow and accumulation of debris which tears the fence down. As a result of recent utility
easement clearing by CFPUA, the fence failure is visible from Kerr Avenue and presents
a security breach. In order to meet FAA requirements for the Runway 6 -24 Runway
Object Free Area (ROFA), as well as TSA security requirements, the fencing must cross
the stream.
In order to construct a durable stream crossing for the security fence, the Wilmington
Airport Authority proposes to construct a culverted stream crossing for the security fence.
The proposed crossing will be constructed by installing three 72" culverts, which will
connect to three existing culverts beneath the perimeter road. The existing pipe ends are
1410 Commonwealth Drive, Suite ioi Wilmington, North Carolina 28403 tel: [phone] fax: [phone]
www.withersravenet.com

WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
located outside (but do not violate) the Runway Object Free Area (ROFA) and the fence
must be located outside of the ROFA per FAA Airport Design requirements. In order to
comply with the FAA runway safety requirements while providing a secure perimeter,
the existing culverts will be extended past the ROFA to support the new fence. It is also
anticipated that FAA may require the existing airport perimeter road to be relocated
outside of the ROFA sometime in the future. Therefore, the proposed culvert extension is
designed to accommodate both the new security fence and the future relocation of the
perimeter road. (The purpose of the perimeter road is to allow for Airport Rescue and
Fire Fighting (ARFF) personnel to respond to aircraft accidents, and to allow TSA
personnel to perform daily perimeter security checks. The latter requirement results in
the need for the perimeter fencing to be visible from and preferably adjacent to the
perimeter road. Please see the attached Project Purpose discussion by Talbert & Bright,
which has been provided as an Appendix.
This project scope also consists of the clearing of uplands within the project area to
remove mature trees in order to provide line of sight to aircraft on approach to Runway
24 and to the approach lighting system. The existing trees currently prevent line of sight.
The clearing and grading will occur only in uplands, and no wetlands will be disturbed.
Silt fencing will be installed around all disturbed areas to prevent accidental disturbance
or sedimentation of existing wetlands. Please see attached Sediment and Erosion Control
Plan for location and extent of the proposed clearing. The proposed clearing of the
vegetation within the adjacent uplands does not require authorization by the Corps, but
we wanted to notify you to avoid any future questions.
Project History
Ms. Emily Hughes with the Corps of Engineers issued a Jurisdictional Determination
(AID #SAW- 2010 - 00280) for the subject property on January 12, 2011.
Previous permits have been issued for prior projects within the Wilmington International
Airport. The "Wilmington International Airport Permit Actions Summary Table" has
been provided as a Appendix, and identifies the previous permits issued, along with the
authorized impact areas, to document that the cumulative impacts of previous projects
and the proposed project do not exceed 0.50 acres.
Proposed Impacts
The proposed impacts consist of 214 if of permanent stream impacts for installation of
culverts within the stream to accommodate the proposed security fence and future
perimeter road. The culverted crossing will consist of the installation of triple 72"
aluminum culverts, each approximately 143 if long within the existing stream channel.
There will also be 71 if of rip -rap placed in the channel below the outfall of the culverts
to dissipate energy and prevent erosion.
1410 Commonwealth Drive, Suite ioi Wilmington, North Carolina 28403 tel: [phone] fax: [phone]
www.withersravenet.com

WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
Avoidance and Minimization
Due to the nature of the project, stream impacts could not be avoided. Stream impacts
were minimized through the installation of 72" culverts, which will act to slow down the
velocity through the existing 60" culverts, which allows for a shorter rip -rap apron below
the outfall of the culverts.
Mitigation
The applicant proposes to mitigate for the proposed 214 if of permanent stream impacts
by purchasing stream mitigation from EEP at a 2:1 ratio, resulting in the purchase of 418
If of stream mitigation. A copy of the EEP Letter of Acceptance has been provided as an
Appendix.
The current request is for 214 if of permanent stream impacts (see the attached
maps and PCN for details).
Please feel free to call if you have questions or require additional information.
Sincerely,
Troy Beasley
Environmental Scientist
Attachments:
• PCN Form
• Agent Authorization
• Project Purpose Discussion by Talbert & Bright
• Wilmington International Airport Permit Actions Summary Table
• Wetland Location Exhibit
• USGS Quad Map
• New Hanover County Soil Survey
• 7D Tearsheet and Signed Wetland Survey
• EEP Letter of Acceptance
• Wetland Impact Plan
• Sediment and Erosion Control Plan
1410 Commonwealth Drive, Suite ioi Wilmington, North Carolina 28403 tel: [phone] fax: [phone]
www.withersravenet.com

o�oF w a rF9o�
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Page 1 of 12
PCN Form — Version 1.3 December 10, 2008 Version
Pre - Construction Notification (PCN) Form
A. Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the
Corps:
®Section 404 Permit El Section 10 Permit
1 b.
Specify Nationwide Permit (NWP) number: 39 or General Permit (GP) number:
1 c.
Has the NWP or GP number been verified by the Corps?
❑ Yes
® No
1 d.
Type(s) of approval sought from the DWQ (check all that apply):
❑ 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ 401
Certification:
❑ Yes ❑ No
For the record only
❑ Yes
for Corps Permit:
® No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in -lieu
fee program.
® Yes
❑ No
1 g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1 In
below.
® Yes
❑ No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes
® No
2.
Project Information
2a.
Name of project:
Wilmington International Airport — Kerr Avenue Security Fence
2b.
County:
New Hanover
2c.
Nearest municipality / town:
Wilmington
2d.
Subdivision name:
2e.
NCDOT only, T.I.P. or state
project no:
3.
Owner Information
3a.
Name(s) on Recorded Deed:
New Hanover County
3b.
Deed Book and Page No.
DB: 5345 - Page: 791; DB: 5591 — Page: 1756; DB: 2101 — Page:
1040
3c.
Responsible Party (for LLC if
applicable):
3d.
Street address:
230 Government Center Drive
3e.
City, state, zip:
Wilmington, NC 28403
3f.
Telephone no.:
3g.
Fax no.:
3h.
Email address:
Page 1 of 12
PCN Form — Version 1.3 December 10, 2008 Version

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑ Agent ® Other, specify: Wilmington Airport Authority
4b.
Name:
Jon Rosborough — Airport Director
4c.
Business name
(if applicable):
Wilmington Airport Authority
4d.
Street address:
1740 Airport Blvd, Suite 12
4e.
City, state, zip:
Wilmington, NC 28461
4f.
Telephone no.:
910 - 341 -4333
4g.
Fax no.:
4h.
Email address:
5.
Agent/Consultant Information (if applicable)
5a.
Name:
Troy Beasley
5b.
Business name
(if applicable):
Withers and Ravenel
5c.
Street address:
1410 Commonwealth Drive, Suite 101
5d.
City, state, zip:
Wilmington, NC 28403
5e.
Telephone no.:
910 - 256 -9277
5f.
Fax no.:
910 - 256 -2584
5g.
Email address:
tbeasley @withersravenel.com
Page 2 of 11
PCN Form — Version 1.3 December 10, 2008 Version

B. Project Information and Prior Project History
1. Property Identification
RO4200- 001 - 025 -000; RO4200- 001 - 027 -000; R04200-
1a. Property identification no. (tax PIN or parcel ID):
001 - 021 -000; RO4200- 001 - 022 -000; R04210- 001 -001-
000; RO4210- 001 - 008 -000
1 b. Site coordinates (in decimal degrees):
Latitude: 34.277639 °N Longitude: - 77.889361'W
(DD.DDDDDD) (- DD.DDDDDD)
1 c. Property size:
Project Area = ±12 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
Smith Creek
proposed project:
2b. Water Quality Classification of nearest receiving water:
C; SW Stream Index # 18 -74 -63
2c. River basin:
Cape Fear — HUC 03030007
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The project area currently consists of undeveloped woodlands within the Wilmington International Airport. The general
land use in the vicinity of the project consists of a mixture of residential and commercial land use.
3b. List the total estimated acreage of all existing wetlands on the property:
±4.8 acres of wetlands within project area.
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
±1,706 If of stream within the proposed project area.
3d. Explain the purpose of the proposed project:
The proposed project consists of the construction of a security fence adjacent to North Kerr Avenue across a UT to Smith
Creek in order to meet FAA security requirements. The existing security fence has repeatedly failed at the stream crossing
due to high stream flow and accumulation of debris which tears the fence down. As a result of recent utility easement clearing
by CFPUA, the fence failure is visible from Kerr Avenue and presents a security breach. In order to meet FAA requirements
for the Runway 6 -24 Runway Object Free Area (ROFA), as well as TSA security requirements, the fencing must cross the
stream.
In order to construct a durable stream crossing for the security fence, the Wilmington Airport Authority proposes to construct a
culverted stream crossing for the security fence. The proposed crossing will be constructed by installing three 72" culverts,
which will connect to three existing culverts beneath the perimeter road. The existing pipe ends are located outside (but do
not violate) the Runway Object Free Area (ROFA) and the fence must be located outside of the ROFA per FAA Airport Design
requirements. In order to comply with the FAA runway safety requirements while providing a secure perimeter, the existing
culverts will be extended past the ROFA to support the new fence. It is also anticipated that FAA may require the existing
airport perimeter road to be relocated outside of the ROFA sometime in the future. Therefore, the proposed culvert extension
is designed to accommodate both the new security fence and the future relocation of the perimeter road. (The purpose of the
perimeter road is to allow for Airport Rescue and Fire Fighting (ARFF) personnel to respond to aircraft accidents, and to allow
TSA personnel to perform daily perimeter security checks. The latter requirement results in the need for the perimeter fencing
to be visible from and preferably adjacent to the perimeter road.
3e. Describe the overall project in detail, including the type of equipment to be used:
The proposed crossing will be constructed by installing three 72" culverts, which will connect to three existing culverts
beneath the perimeter road. Standard commercial construction equipment will be used to install the culverts.
Page 3 of 11
PCN Form — Version 1.3 December 10, 2008 Version

4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
®Yes El No El Unknown
project (including all prior phases) in the past?
Comments:
4b. If the Corps made the jurisdictional determination, what type
El Preliminary ®Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas?
Agency /Consultant Company:
Name (if known):
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
The Corps issued a Final JD for the project area (AID 2010 - 00280) on 1/12/11.
5. Project History
5a. Have permits or certifications been requested or obtained for
® Yes ❑ No ❑ Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
Previous permits have been issued for the Wilmington International Airport in the past. Please see `Wilmington
International Airport Permit Actions Summary Table ", which has been provided as an Appendix.
6. Future Project Plans
6a. Is this a phased project?
❑ Yes ® No
6b. If yes, explain.
Page 4 of 11
PCN Form — Version 1.3 December 10, 2008 Version

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ® Streams - tributaries ❑ Buffers
❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
2b.
2c.
2d.
2e.
2f.
Wetland impact
Type of jurisdiction
number —
Type of impact
Type of wetland
Forested
(Corps - 404, 10
Area of impact
Permanent (P) or
(if known)
DWQ — non -404, other)
(acres)
Temporary (T)
W1 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W2 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W3 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W4 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W5 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W6 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
2g. Total wetland impacts
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
3b.
3c.
3d.
3e.
3f.
3g.
Stream impact
Type of impact
Stream name
Perennial
Type of jurisdiction
Average
Impact
number -
(PER) or
(Corps - 404, 10
stream
length
Permanent (P) or
intermittent
DWQ — non -404,
width
(linear
Temporary (T)
(INT)?
other)
(feet)
feet)
S1 ® P ❑ T
Culvert Installation
UT to Smith Creek
® PER
❑ INT
® Corps
® DWQ
214 If
3h. Total stream and tributary impacts
214 If
3i. Comments:
Page 5 of 11
PCN Form — Version 1.3 December 10, 2008 Version

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a.
4b.
4c.
4d.
4e.
Open water
Name of waterbody
impact number —
(if applicable)
Type of impact
Waterbody type
Area of impact (acres)
Permanent (P) or
Temporary (T)
01 ❑P ❑T
02 ❑P ❑T
03 ❑P ❑T
04 ❑P ❑T
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, then complete the chart below.
5a.
5b.
5c.
5d.
5e.
Wetland Impacts (acres)
Stream Impacts (feet)
Upland
Pond ID
Proposed use or purpose
(acres)
number
of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
K Total
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a.
❑ Neuse El Tar-Pamlico El Other:
Project is in which protected basin?
❑ Catawba ❑ Randleman
6b.
6c.
6d.
6e.
6f.
6g.
Buffer impact
number —
Reason
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P) or
for
Stream name
mitigation
(square feet)
(square feet)
Temporary (T)
impact
required?
B1 ❑P ❑T
F-1 Yes
❑ No
B2 ❑P ❑T
F-1 Yes
❑ No
B3 ❑P ❑T
F-1 Yes
❑ No
6h. Total buffer impacts
6i. Comments:
Page 6 of 11
PCN Form — Version 1.3 December 10, 2008 Version

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Due to the nature of the project, stream impacts could not be avoided. Stream impacts were minimized through the
installation of 72" culverts, which will act to slow down the velocity through the existing 60" culverts, which allows for a shorter
rip -rap apron below the outfall of the culverts.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Stream impacts were minimized through the installation of 72" culverts, which will act to slow down the velocity through the
existing 60" culverts, which allows for a shorter rip -rap apron below the outfall of the culverts. Silt fencing will be installed
around all disturbed areas to prevent sediment from escaping the project area and impacting downstream waters.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
® Yes ❑ No
2b. If yes, mitigation is required by (check all that apply):
® DWQ ® Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
®Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type
Quantity
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
® Yes
4b. Stream mitigation requested:
214 linear feet
4c. If using stream mitigation, stream temperature:
❑ warm ❑ cool ❑cold
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non - riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 7 of 11
PCN Form — Version 1.3 December 10, 2008 Version

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
❑ Yes ® No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 8of11
PCN Form — Version 1.3 December 10, 2008 Version

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1 a.
Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes ® No
within one of the NC Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑ No
Comments:
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
N/A %
2b.
Does this project require a Stormwater Management Plan?
❑ Yes ® No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
The proposed project will not result in impervious area.
❑ Certified Local Government
2e.
Who will be responsible for the review of the Stormwater Management Plan?
❑ DWQ Stormwater Program
❑ DWQ 401 Unit
3.
Certified Local Government Stormwater Review
3a.
In which local government's jurisdiction is this project?
❑ Phase II
❑ NSW
3b.
Which of the following locally - implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
4.
DWQ Stormwater Program Review
❑ Coastal counties
❑ HQW
4a.
Which of the following state - implemented stormwater management programs apply
❑ ORW
(check all that apply):
❑ Session Law 2006 -246
❑ Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
attached?
❑ Yes ❑ No
5.
DWQ 401 Unit Stormwater Review
5a.
Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b.
Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 9 of 11
PCN Form — Version 1.3 December 10, 2008 Version

F.
Supplementary Information
1.
Environmental Documentation (DWQ Requirement)
1 a.
Does the project involve an expenditure of public (federal /state /local) funds or the
® Yes
❑ No
use of public (federal /state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes
® No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c.
If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes
❑ No
letter.)
Comments:
2.
Violations (DWQ Requirement)
2a.
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
❑ Yes
® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b.
Is this an after - the -fact permit application?
❑ Yes
® No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3.
Cumulative Impacts (DWQ Requirement)
3a.
Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes
® No
additional development, which could impact nearby downstream water quality?
3b.
If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
The project will occur within the Wilmington International Airport for security purposes and will not be a
catalyst for future
development that could impact downstream water quality.
4.
Sewage Disposal (DWQ Requirement)
4a.
Clearly detail the ultimate treatment methods and disposition (non- discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
N/A
Page 10 of 11
PCN Form — Version 1.3 December 10, 2008 Version

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
❑ Yes ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑ Yes ® No
impacts?
E] Raleigh
5c. If yes, indicate the USFWS Field Office you have contacted.
❑ Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
W &R reviewed the NC OneMap Viewer GIS website, located at http: / /www.nconemap.net/Default.aspx ?tabid =286, to
identify if any potential occurrence of endangered species on or near the proposed project. The review of the GIS
database did not identify any recent occurrences of endangered species or critical habitat on the subject property or
within 0.5 miles of the project.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
® Yes ❑ No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
W &R reviewed the NOAA Essential Fish Habitat online mapper, located at:
http: / /sharpfin.nmfs.noaa.gov /website /EFH Mapper /map.aspx. The EFH mapper classifies the Cape Fear River, located
approximately 5 miles west of the proposed project, as Essential Fish Habitat. However, the project will not result in
adverse impacts to Essential Fish Habitat within the Cape Fear River.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
❑ Yes ® No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
The project area is located within the Wilmington International Airport and has been historically disturbed as a result of
previous use as a military airport, as well as a commercial airport. There were no historical or archeological resources
observed within the project area.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA- designated 100 -year floodplain?
❑ Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? www.ncfloodmaps.com
Troy Beasley — Withers & Ravenel
Authorized Agent
2/9/12
Applicant /Agent's Printed Name
Date
Applicant /Agent's Signature
(Agent's signature is valid only if an authorization letter from the applicant
is provided.)
Page 11 of 11
PCN Form — Version 1.3 December 10, 2008 Version

AGENT AUTHORIZATION

WITHERS RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
AUTHORITY FOR APPOINTMENT OF AGENT
The undersigned owner(s) Wilmington Airport Authority do(es) hereby appoint Troy Beasley /
Withers & Ravenel, Inc. as his, her, or it's agent for the purpose of petitioning the appropriate
local, state and federal environmental regulatory agencies (US Army Corps of Engineers, NC
Division of Water Quality, NC Division of Coastal Management, etc.) for: a) review and approval
of the jurisdictional boundaries of onsite jurisdictional areas (wetlands, surface waters, etc.)
and /or; b) preparation and submittal of appropriate environmental permit applications /requests for
the Wilmington International Airport.
The owner does hereby authorize that said agent has the authority to do the following acts on
behalf of the owner:
(1) To submit appropriate requests /applications and the required
supplemental materials;
(2) To attend meetings to give representation on behalf of the Client.
(3) To authorize access to subject property for the purpose of environmental
review by appropriate regulatory agencies.
This authorization shall continue in effect until completion of the contracted task or termination by
the property owner.
Agent's Name, Address & Telephone:
Troy Beasley / Withers & Ravenel, Inc.
1410 Commonwealth Drive, Suite 101
Wilmington, NC 28403
Tel._ (910) 256 -9277
Date: M 1 41 14
Signature of Owner(s):
8 0 �-- y u G-/l N, ,-� Aaa , e z_c.7-L1/t
(Title)
(Signature)
Mailing Address
City U State Zip
1410 Commonwealth Drive, Suite ioi Wilmington, North Carolina 28403 tel: [phone] fax:910_256-2584
www.withersravenel.com

PROJECT PURPOSE DISCUSSION
BY TALBERT & BRIGHT

Wilmington International Airport Security Fence, Line of Sight Clearing and Wildlife Hazard
Mitigation Project
TBI Project # 3301 -1102
In the vicinity of Kerr Avenue, the Wilmington International Airport has three significant
safety /security issues that they are required to resolve by FAA and /or the TSA. These include:
1. Due to high stream flows, the existing security fence has repeatedly failed where it
crosses a stream that runs through the Airport property and under Kerr Avenue. Due to
recent utility easement clearing by CFPUA, this security breach is visible to motorists on
Kerr Avenue (photo below).
2. The FAA Air Traffic Control Tower (ATCT) does not currently have 'line of sight' to
aircraft on approach to Runway 24 or to the approach lighting system due to the
presence of trees on Airport property.
3. There is a large wooded area comprised of uplands and wetlands that is currently inside
the airport perimeter fence and is directly adjacent to Runway 6 -24. According to the
Airport's Wildlife Hazard Management Plan prepared by USDA Wildlife Services, the
area habit for wildlife that is potentially hazardous to aircraft operations.
1 �,

The Airport proposes to mitigate these safety and security issues by performing the following
work:
1. In order to meet FAA requirements for Runway 6 -24 Runway Object Free Area, the
fencing must cross the existing stream. The Airport proposes to construct a durable
stream crossing for the fencing to provide a secure airport perimeter in compliance with
TSA requirements. Construction of the stream crossing will impact the existing
stream.
2. The Airport proposes to relocate the security fencing closer to the runway to "fence
out" the wetland area from the airfield. This will provide some mitigation for the
potential wildlife hazard associated with the wetlands habitat. With the exception of
the stream crossing described in #1 above, the fence relocation will not impact
streams or wetlands.
3. The Airport proposes to clear trees from approximately 11 acres of upland area to
provide the ATCT line of sight requirements to the Runway 24 approach lighting system
and to mitigate roosting habitat and associated wildlife attractants in accordance with
recommendations in the Airport's Wildlife Hazard Management Plan. This work will not
impact streams or wetlands.
Description of Stream Impact
There are triple 60 -inch HDPE pipes (inside 72" RCP host pipes) and a single 48 -inch RCP located
at the upstream end of the stream. The triple pipes convey an existing stream through the
Airport property under Taxiway B and Runway 6 -24. The existing pipe ends are located within
(but do not violate) the Runway Object Free Area (ROFA) and the fence must be located outside
of the ROFA per FAA Airport Design requirements. In order to comply with FAA runway safety
requirements while providing a secure perimeter, the existing culverts will be extended past
the ROFA to support the new fence. It is also anticipated that FAA may require the existing
airport perimeter road to be relocated outside the ROFA sometime in the future. Therefore, the
proposed culvert extension is designed to accommodate both the new fence and the future
relocation of the airport perimeter road. (The purpose of the airport perimeter road is to allow
Airport Rescue and Fire Fighting (ARFF) personnel to respond to aircraft accidents, and to allow
TSA personnel to perform daily perimeter security checks. The latter requirement results in the
need for the perimeter fencing to be visible from and preferably adjacent to the perimeter
road.)
The proposed project consists of installing triple 72" aluminum culverts, each approximately
143 If long installed within the existing stream channel, and approximately 138 If of 48"
aluminum pipe to connect the existing 48" RCP to one of the new 72" culverts. The 72" culverts
will act to slow down the velocity through the 60" HDPE pipes and therefore require a shorter
length of riprap apron. Class 2 Riprap is proposed for a length of 71 feet downstream from the
triple pipe outfalls to protect the channel and prevent scour.

WILMINGTON INTERNATIONAL AIRPORT
PERMIT ACTIONS SUMMARY TABLE

Wilmington International Airport Permit Actions Summary Table
Action ID
Date
401 WQC
Date
Project
Permit Type
Impacts (Acres)
199901525
8/20/1999
WQC 3127
Airfield Drainage Rehabilitation Phase I
NWP 3
0
200100810
6/29/2001
01 -0892
6/14/2001
Airfield Drainage Rehabilitation Phase II
NWP 18
0.01
200300399
2/11/2003
N/A
Airfield Drainage and Rehabilitation Phases IIIA, 111B & IV
No Permit Required
0
200001610
9/22/2003
N/A
Runway 35 Approach Clearing
No Permit Required
0
200640574 -065
9/5/2006
N/A
Runway 6 -24 Approach Clearing
No Permit Required
0
2004951065
9/16/2006
N/A
IL,S/MALSR Project for Runway 6 -24 (Parsons)
NWP 39
0.0085
2004951065
5/9/2007
N/A
Perimeter Road Phase 11
NWP 18
0.0519 Total
(Wetlands — 0.028 /
Waters — 0.0239)
20082499
8/29/2008
WQC 3624
Fence Line & Channel Repairs
NWP 3
0
Total Cumulative Impacts as of 2/9/2012
0.0704 acres

WETLAND LOCATION EXHIBIT,
USGS QUAD MAP &
NEW HANOVER COUNTY SOIL SURVEY

GRAPHIC SCALE ;� t "*+►
0 1000
i
1 Inch = 1000 Y,
t
' : "R
a.
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�- 29 PROJECT AREA
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WILMINGTON INTERNATIONAL AIRPORT WITHERS & RAYEMEL
KERR AVENUE SECURITY FENCE USGS QUAD MAP - CASTLE HAYNE QUAD
CRa1R94ki 1 SLR %%!ks [ sVR11FTOR5
LVdm Lr k/wmd"6..e Cclj* Hard. C.wAill r

GRAPHIC SCALE
0 250 500
1 inch = 500 ft.
W
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PROJECT AREA
Ls l
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WILMINGTON INTERNATIONAL AIRPORT
KERR AVENUE SECURITY FENCE
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NEW HANOVER COUTY SOIL SURVEY- SHEET 11
WITHERS & RAVENEL
ENGINEERS 1 PLANNERS 1 SURVEYORS

JD TEARSHEET
SIGNED WETLAND SURVEY

U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. SAW - 2010 -00280 County: New Hanover U.S.G.S. Quad: Castle Hayne
NOTIFICATION OF JURISDICTIONAL DETERMINATION
Property Owner /Agent: Wilmington International Airport
C/o Mr. ,Ion W. Rosborough, Airport Director
Address: 1740 Airport Boulevard, Suite 12
Wilmington, North Carolina 28405
Telephone No.: (910)
Property description:
Size (acres)
Nearest Waterway
USGS HUC
—2 l
UT to Sin1t.h Creek
03030005
Nearest Town Wilmington
River Basin Cape Fear
Coordinates N 34.27174, W - 77.89143
Location description The ro'ect area is located within the Wilmington International Airport (ILM)_property, alopig Kerr
Avenue between Morris Road and Farley Road Wilmington, New Hanover County, North Carolina.
Indicate Which of the Following Apply:
A. Preliminary Determination
Based on preliminary information, there may be wetlands on the above described property. We strongly suggest you have this
property inspected to determine the extent of Department of the Army (DA) jurisdiction. To be considered final, a jurisdictional
determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory
Program Administrative Appeal Process (Reference 33 CFR Part 331).
B. Approved Determination
There are Navigable Waters of the United States within the above described property subject to the permit requirements of
Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our
published regulations, this determination may be relied upon for a period not to exceed five years from the date of this
notification.
X There are waters of the U.S. includin2 wetlands on the above described proiect area subject to the permit requirements of
Section 404 of the Clean Water Act CWA 33 USC 4 1344), Unless there is a Change in the law or our vublislied
re ulations this determination may be relied upon fora period not to exceed five years from the date of this notification.
_ We strongly suggest you have the wetlands on your property delineated. Due to the size of your property and /or our present
workload, the Corps may not be able to accomplish this wetland delineation in a timely manner. For a more timely delineation,
you may wish to obtain a consultant. To be considered final, any delineation must be verified by the Corps.
The waters of the U.S. including wetland on your project area have been delineated and the delineation has been verified by the
Corps. We strongly suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified
by the Corps. Once verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your
property which, provided there is no change in the law or our published regulations, may be relied upon for a period not to exceed
five years.
X_ The waters of the U.S. including wetlands have been delineated and surveyed and are accurately depicted on the plat
signed by the Corns Regulatory Official identified below on 1/12/2011. Unless there is _a change in the law or our
published rellulations, this determination may be relied u on fora period not to exceed five ears from tile date of this
notification.
There are no waters of the U.S., to include wetlands, present on the above described property which are subject to the permit
requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published
regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification.

X The property is located in one of the 20 Coastal Counties subiect to regulation under the Coastal Area Management Act
(CAMA). You should contact the Division of Coastal Management in Wilmington, NC at (910) 796 -7215 to determine
their requirements.
Placement of dredged or fill material within waters of the US and/or wetlands without a Department of the Army permit may
constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). If you have any questions regarding this determination
and/or the Corps regulatory program, please contact Emily Hughes at 910 - 251 -4635.
C. Basis For Determination
This site exhibits wetland criteria as described in the 1987 Corps Wetland Delineation Manual and is ad'acent to an unnamed
tributary to Smith Creek. This determination is based on information submitted by CZR lnc. and a site visit by Emil
Hughes on 2118/2010.
D. Remarks
E. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B.
a b ove)
This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this
determination, you may request an administrative appeal under Corps regulations at 33 CFR part 33 I. Enclosed you will find a
Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you
must submit a completed RFA form to the following address:
District Engineer, Wilmington Regulatory Division
Attn: Emily Hughes, Project Manager,
Wilmington Regulatory Field Office
69 Darlington Ave.
Wilmington, North Carolina 28403 -1398
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal
under 33 CFR part 331.5, and that it has been received by the District Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at tile above address by 3/12/2011.
**It is not necessary to submit an RFA form to the District Office if you do not object to the determination in this correspondence.**
(�
Corps Regulatory Official: hrw Q-�2 �4-t-OL 0--->
Date January 12, 2011 Expiration Date January 12, 2016
Action Id. SAW - 2010 -00280
The Wilmington District is committed to providing tine highest level of support to tine public. To help us ensure we continue to do so,
please complete the Customer Satisfaction Survey located at our website at http: / /regulatOly.tisacesurvey.coi to complete the survey
online.
Copy furnished:
Lorrie Laliberte, 4709 College Acres Drive, Suite 2, Wilmington, NC 28403
NCDENR -DWO Attn: Chad Coburn, 127 Cardinal Drive Ext., Wilmington, NC 28403
Robert Williams, Talbert & Bright, Inc., 4810 Shelley Drive, Wilmington, NC 28405

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LEGEND
WKM/Y3TONa� /�.\
INTERNATIONILL ,U`
`AIRPORT �
MAP
WERAND AREA 198,579 sq. tL 4.513 owes
AREA IN STREAM 1 18,694 sq. R. 0.383 a
383 oe3
AREA IN STREAM 2 520 sq• IL 0.012 ocrw
AREA IN STREAM 3 2.007 sq. N, 0.048 owes
TOTAL SECTION 215.aOD w. R .954 ow
JMSDIC71ONAL AREA
RI6R OF NAY
31- M
STREAM FLAG
1-0/f
WETLAND FTAO
N/E
NOW OR FORMERLY
DO
D® BOON
PO
x�
PATE
SECTION 404 WETLANDS
WILMINGTON INTERNATIONAL AIRPORT
RDOE OF ASPHALT PAVEMENT
/ 1
STREAM
- - -- -
LTMns OF SURVEY
WKM/Y3TONa� /�.\
INTERNATIONILL ,U`
`AIRPORT �
MAP
WERAND AREA 198,579 sq. tL 4.513 owes
AREA IN STREAM 1 18,694 sq. R. 0.383 a
383 oe3
AREA IN STREAM 2 520 sq• IL 0.012 ocrw
AREA IN STREAM 3 2.007 sq. N, 0.048 owes
TOTAL SECTION 215.aOD w. R .954 ow
JMSDIC71ONAL AREA
t ♦
WETLAND DELINEATION SURVEY
70B Numm
C,Od
-nw
FOR
TALBERT &BRIGHT
Scut 1• v 4D
co Amer
PM wr
WILMINGTON, NORTH CAROLINA 25401
TELEPHONE:
WILMINGTON INTERNATIONAL AIRPORT
PAM DEW. u
/ 1
[phone]
FAX: [phone]
PERIMETER FENCE - KERR AVENUE
CAD t1
�D 800Z/PA1AC „e4F12 -_
`
NORTH CAROLINA FIRM LICENSE NUMBER: C -0342
CITY OF WILMINGTON, NEW HANOVER COUNTY, NORTH CAROLINA
DRAUM XUMBM 2010 -010
MARCH 23. 2010
SHEET I OF I

EEP LETTER OF ACCEPTANCE

Jon Rosborough
Wilmington Airport Authority
1740 Airport Blvd., Suite 12
Wilmington, NC 28405
Project: ELM Security Fence Project
Expiration of Acceptance: July 31, 2012
County: New Hanover
The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NCEEP) is willing to accept
payment for compensatory mitigation for impacts associated with the above referenced project as indicated in the table below. Please
note that this decision does not assure that participation in the NCEEP will be approved by the permit issuing agencies as mitigation
for project impacts. It is the responsibility of the applicant to contact these agencies to determine if payment to the NCEEP will be
approved. You must also comply with all other state, federal or local government permits, regulations or authorizations associated
with the proposed activity including SL 2009 -337: An Act to Promote the Use of Compensatory Mitigation Banks as amended by
S.L. 2011 -343.
This acceptance is valid for six months from the date of this letter and is not transferable. If we have not received a copy of the
issued 404 Permit/401 Certification/CAMA permit within this time frame, this acceptance will expire. It is the applicant's
responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permit(s) an invoice will be issued based
on the required mitigation in that permit and payment must be made prior to conducting the authorized work. The amount of the In
Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and policies listed at www.nceep.net.
Based on the information supplied by you in your request to.use the NCEEP, the impacts that may require compensatory mitigation are
summarized in the following table. The amount of mitigation required for this impact is determined by permitting agencies.
Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. The mitigation will be performed in
accordance with the N.C. Department of Environment and Natural Resources' Ecosystem Enhancement Program In -Lieu Fee
Instrument dated July 28, 2010.
Thank you for your interest in the NCEEP. If you have any questions or need additional information, please contact Kelly Williams at
(919) 716 -1921.
Sincerely,
Michael Ellison
Deputy Director
cc: Karen Higgins, NCDWQ Wetlands /401 Unit
Emily Hughes, USACE - Wilmington
Chad Coburn, NCDWQ- Wilmington
Doug Huggett, NCDCM- Morehead City
Troy Beasley, agent
File
R"tort�tg... LOW"... Protect OU r Stag
LTXWA
NCDENR
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699 -1652 / 919 - 715 -0476 / www.nceep.net
River
Basin
CU
Location
Stream (feet)
Wetlands (acres)
Buffer I
(Sq. Ft.)
Buffer II
(Sq. Ft.)
Cold
Cool Warm
Riparian
Non - Riparian
Coastal Marsh
Impact
Cape Fear
03030007
0
0 214
0
0
0
0
0
Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. The mitigation will be performed in
accordance with the N.C. Department of Environment and Natural Resources' Ecosystem Enhancement Program In -Lieu Fee
Instrument dated July 28, 2010.
Thank you for your interest in the NCEEP. If you have any questions or need additional information, please contact Kelly Williams at
(919) 716 -1921.
Sincerely,
Michael Ellison
Deputy Director
cc: Karen Higgins, NCDWQ Wetlands /401 Unit
Emily Hughes, USACE - Wilmington
Chad Coburn, NCDWQ- Wilmington
Doug Huggett, NCDCM- Morehead City
Troy Beasley, agent
File
R"tort�tg... LOW"... Protect OU r Stag
LTXWA
NCDENR
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699 -1652 / 919 - 715 -0476 / www.nceep.net

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