20090430 Ver 1_Individual_20090415

Johnston County Airport
Runway Safety Area and
Corporate Area Development
Application for
US Army Corps of Engineers 404
NC Division of Water Quality 401
Prepared For:
Johnston County Airport Authority
3149 Swift Creek Road
Smithfield, NC 27577
Phone [phone]
Fax [phone]
Prepared by:
WK Dickson & Company, Inc.
720 Corporate Center Drive
Raleigh, NC 27607
Phone [phone]
Fax [phone]
09-0430
Permit and
Certification

H n 1 i %;aJ
DENR -WWI ER QUALITY
WETLANDS AND STORMATEROMW
April 2009
Ift W I <
WDICKSOlf"I
• community infrastructure consultants
•
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April 13, 2009
Ms. Cyndi Karoly
Division of Water Quality
401 Wetlands Unit
2321 Crabtree Blvd., Suite 250
Raleigh, NC 27604
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RE: 401 Water Quality Certification Application for Johnston County Airport Runway Safety
Area and Corporate Area Development
Dear Ms. Karoly:
Attached to this letter is an Application for Individual 401 Water Quality Certification, project
narrative, environmental assessment, and design plans for the proposed Johnston County Airport
Runway Safety Area (RSA) and Corporate Area Development. This joint 404/401 application is also
being submitted concurrently to the US Army Corps of Engineers for Individual 404 Permit.
An RSA is a cleared, non-paved, graded area systematically located about the extended runway
centerline. Its purpose is to support aircraft that may overrun or undershoot the runway without injury
to the occupants or major damage to the aircraft. RSAs are required by the FAA and are critical at
airports with relatively short runways and larger aircraft.
The Corporate Area is located adjacent to the aircraft taxiways. Apron area is available for external
parking/tie-down of aircraft. Hangars offer inside storage of aircraft. The present and projected growth
pattern places a capacity constraint on aircraft parking apron and additional hangar space.
The table below details the anticipated impacts to jurisdictional areas.
Site Feature Excavation Fill Total
RSA Riparian Wetland (acres) 0.18 8.66 8.84
Corp. Area Non-Riparian Wetland (acres) None 10.31 10.31
RSA Stream (linear feet) None 779 779
RSA Buffer Zone 1 (square feet) 711 47,756 48,467
RSA Buffer Zone 2 (square feet) 160 30,499 30,659
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Please contact me if you have any questions regarding this submittal ([e-mail]).
Thank you for your prompt attention to this important aviation project.
Sincerely,
W.K. Dickson & Co., Inc. ?1 /?
Daniel Ingram
Project Scientist
cc: Thomas Brown, USACE
Ray Blackmon, Johnston County Airport
Carroll Triplett, WK Dickson
Chastity N. Clark, NCDOA
Project file, 80324.00.CA
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APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT OMB APPROVAL NO. 0710-0003
(33 CFR 325) Expires December 31, 2004
The Public burden for this collection of information is sestimated to average 10 hours per response, although the majority of applications should require
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iftnation, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Service Directorate of Information
tions and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302; and to the Office of Management and Budget,
rwork Reduction Project (0710-0003), Washington, DC 20503. Respondents should be aware that notwithstanding any other provision of law,
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number. Please DO NOT RETURN your form to either of those addresses. Completed applications must be submitted to the District Engineer having
jurisdiction over the location of the proposed activity.
PRIVACY ACT STATEMENT
Authorities: Rivers and Harbors Act, Section 10, 33 USC 403; Clean Water Act, Section 404, 33 USC 1344; Marine Protection , Research and
Sanctuaries Act, 33 USC 1413, Section 103. Principal Purpose: Information provided on this form will be used in evaluating the application for a
permit. Routine Uses: This information may be shared with the Department of Justice and other federal, state, and local government agencies.
Submission of requested information is voluntary, however, if information is not provided the permit application cannot be evaluated nor can a permit
be issued.
Ono set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this
application (see sample drawings and instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed
activity. An application that is not completed in full will be returned.
1. APPLICATION NO. 12. FIELD OFFICE CODE 13. DATE RECEIVED 14. DATE APPLICATION COMPLETED
ITEMS BELOW TO BE FILLED BY APPLICAN
5. APPLICANT'S NAME 8. AUTHORIZED AGENT'S NAME AND TITLE (anapentisnotreouired)
JOHNSTON COUNTY AIRPORT AUTHORITY -,
1
6. APPLICANT'S ADDRESS
3149 SWIFT CREEK ROAD ,, _1'
?t?C.+1.1'10?1' 9. AGENT'S ADDRESS
SMITHFIELD, NC 27577
T. APPLICANT'S PHONE NOS. W/AREA CODE 10. AGENT'S PHONE NOS. W/AREA CODE
Residence a. Residence
?. Business (919) 934 -0922 b. Business!
1 1. STATEMENT OF AUTHORIZATION '
I hereby authorize, f:; Q
to act in my behalf as my agent in the processiAb-o thi A?pl?cat?on and to
furnish, upon request, supplemental information in support of this permit application.
DE4R - WATER QUALITY
1VETL4NDS ANO ST OPW&M BRANCH
APPLICANT'S SIGNATURE DATE
NAME, LOCATION AND DESCRIPTION OF PROJECT OR ACTIVITY
12. PROJECT NAME OR TITLE (see#w u rions:
JOHNSTON COUNTY AIRPORT EXTENDED RUNWAY SAFETY AREA AND CORPORATE AREA DEVELOPMENT
13. NAME OF WATERBODY. IF KNOWN (ifn-ti-ht j
REEDY BRANCH
15. LOCATION OF PROJECT
JOHNSTON COUNTY NORTH CAROLINA
14. PROJECT STREET ADDRESS /itappticable)
3149 SWIFT CREEK ROAD
SMITHFIELD, NC 27577
COUNTY STATE
16. OTHER LOCATION DESCRIPTIONS, IF KNOWN, (see instructions)
Site coordinates RSA 35.5494660°N 78.3858689°W Corporate Area 35.5440433°N 78.3923539°W
FStI: I FUNS IQ THE SITE
From Raleigh: Take I-40 East (-18 miles). Take exit 309 to merge onto US-70 East toward
Goldsboro/Smithfield (9.9 miles). Take exit 326 for US-70 toward Smithfield (0.5 miles).
Turn right at US-70 W ((3.1 miles). Turn right at Bucket Jones Road/NC-1501/Swift Creek
Road. Continue to follow NC-1501/Swift Creek Road. Johnston County Airport will be on the
left (0.9 miles).
ENG R 4345, u 7 EDITION OF FEB 94 IS OBSOLETE.
(Proponent: CECW-OR)
18. Nature of Activity (Description of project, include all features)
See attached sheet - Block 18

19. Project Purpose (Describe the reason or purpose of the project, see instructions)
See attached sheet - Block 19
USE BLOCKS 20-22 IF DREDGED AND/OR FILL MATERIAL IS TO BE DISCHARGED
20. Reason(s) for Discharge
See attached sheet - Block 20
21. Type(s) of Material Being Discharged and the Amount of Each Tvoe in Cubic Yards
See attached sheet - Block 21
22. Surface Area in Acres of Wetlands or Other Waters Filled (seeinwuctions)
See attached sheet - Block 22
23. Is Any Portion of the Work Already Complete? Yes No >< IF YES. DESCRIBE THE COMPLETED WORK
2r Addresses of Adjoining Property Owners, Lessees, Etc., Whose Property Adjoins the Waterbody (If more than can be entered here,
please attach a supplemental list).
See attached sheet - Block 24
25. List of Other Certifications or Approvals/Denials Received from other Federal, State or Local Agencies for Work Described in This Application.
Ar;:KirV Tvac A0e0n11n1
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'W ould include but is not restricted to zonino. b uildinn and
flood
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26. Application is hereb a for a permit or permits to authorize the work described in this application. I certify that the information in this
appii c le d acc rate. I further certify that I possess the authority to undertake the work described herein or am acting as the
my au gen t app ant.
SIG TURE PLI T DATE SIGNATURE OF AGENT DATE
The app lion m st be signed by the pel' or who desires to undertake the proposed activity (applicant) or it may be signed by a duly
authorized a t if a statement in block 11 has been filled out and signed.
08 U.S.C. Section 1001 provides that: Whoever, in any manner within the jurisdiction of any department or agency of the United States
knowingly and willfully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, fictitious or
fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious or
fraudulent statements or entry, shall be fined not more than $10,000 or imprisoned not more than five years or both.
APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT (33CFR 325)
SUPPLEMENTAL INFORMATION SHEET
JOHNSTON COUNTY AIRPORT EXTENDED RUNWAY SAFETY AREA AND
• CORPORATE AREA DEVELOPMENT
Block 18 Nature of Activity
The extension of the runway safety area (RSA) will increase the RSA to 1,000 feet long by
500 feet wide as required by FAA. The project will also clear trees and shrubs in the
approach area that are or may penetrate the 50:1 approach plane. Cleared vegetation will
be chipped/mulched on-site and used to stabilize the soil where no fill or excavation is
proposed. This will result in the impact of 779 linear feet to Reedy Branch from the
placement of a box culvert. The project will fill of 8.66 acres of wetlands along the
floodplain of Reedy Branch. An additional 0.18 acre of wetlands will be excavated along
the toe of the fill for storm water features. The culvert in Reedy Branch is proposed to be a
triple box culvert (two 10' x 6' with central 9' x 7'). Fill slopes will have a 4:1 slope and
consist of dirt backfiII compacted to specifications and extend across the wetland and into
the upland. Upland areas outside of the 50-foot stream buffer will have the stumps
removed, grubbed, and planted in turf grasses for ease of future maintenance. Wetland
areas outside the 50-foot steam buffer will have the stumps retained though treated with a
herbicide to prevent sprouts.
The Corporate Area Development consists of filling 10.31 acres of wetland to a level grade
for proposed future construction of airplane hangar and parking.
Block 19 Project Purpose
The project will enhance the safety of airport operations by extending the RSA to meet
safety requirements for larger aircraft. The RSA also requires eliminating obstructions in the
• approach path of the runway to ensure adequate flight safety. Additionally, future
maintenance will be eased by replacing forested areas with shrubs or herbaceous
vegetation. This RSA is consistent with the long-range plans of Johnston County, the
Smithfield Area, and the North Carolina Airport System Plan. Increasing the RSA allows the
Airport to continue its role as an important reliever to the Raleigh-Durham International
Airport. The current and forecasted growth at the Johnston County Airport predicts a need
to develop facilities for hangar and apron square footage to accommodate the projected
activities important to the economic vitality of the airport and the surrounding community.
The Corporate Area Development will meet the need for this projected growth. The
forecast and facility requirements were derived in the Airport's last Airport Layout and
Master Plan.
The approximate start date is September 2009 and the estimated completion date is March
2011.
Block 20 Reason for discharge(s)
The RSA requires a level or gently sloping surface from the existing runway. Crossing of
Reedy Branch necessitates the use of a concrete box culvert. Filling across the culvert and
adjoining wetland are necessary to bring the existing grade to the current runway elevation.
Because of the extent of the area, some erosion control measures are required within the
wetland.
The Corporate Area Development will be fill material over the wetland area.
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APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT (33CFR 325)
SUPPLEMENTAL INFORMATION SHEET
JOHNSTON COUNTY AIRPORT EXTENDED RUNWAY SAFETY AREA AND
CORPORATE AREA DEVELOPMENT
Block 21 Type of material being discharged
ERSA - Filling across the culvert, adjoining wetland, and upland area with approximately
169,000 CY of rock, sand, and clay to bring the existing grade to the meet current runway
elevation. The RSA over the fill will be graded and seeded. Storm water structures will also
likely utilize gravel, riprap, and geotextile products.
The Corporate Area Development will be approximately 219,000 CY fill material consisting
of rock, sand, and clay over the wetland area. The hangar and apron area will ultimately
be covered with asphalt/concrete. Fill material will be from local off-site borrow pits.
Block 22 Surface area of wetlands filled
Johnston County Airport Proposed Impacts
Wafers Type Area Impacted Impact Type
ERSA
Riparian Wetland 8.66 AC
Riparian Wetland 0.18 AC
Buffer Zone 1 47,756 SF
Buffer Zone 1 711 SF
Buffer Zone 2 30,499 SF
Buffer Zone 2 160 SF
Stream 779 LF AC
Corporate Development Area
Non-Riparian Wetland 10.31 AC
Permanent Fill
Permanent Cut (Drainage Ditches)
Permanent Fill
Permanent Excavation (Storm Water)
Permanent Fill
Permanent Excavation (Storm Water)
Culvert
Permanent Fill
Fill material and excavation will be performed by standard construction equipment and
techniques.
Block 24 Addresses of adjoining property owners, lessees, etc
NCPIN OWNERNAME1
168510-36-9314 Jesse J. and Dorothy Gower Underwood
3000 US HWY 70 West Business
Smithfield, NC 27577-0000
168500-34-9527 D. Hubert Gower Life Estate
Greg G. Gower, RMDNR
720 Chestnut Drive
Smithfield, NC 27577-0000
168510-36-7544 Jesse J. Underwood
3000 hwy 70 west bus
Smithfield, NC 27577-0000
168519-50-2545 Joyce Martin Gourley and Janice Martin Rose
309 Hardwood Ridge
Clayton, NC 27520-0000
168500-12-1015 Johnston County Airport Authority
3146 Swift Creek Road
Smithfield, NC 275779803
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APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT (33CFR 325)
SUPPLEMENTAL INFORMATION SHEET
JOHNSTON COUNTY AIRPORT EXTENDED RUNWAY SAFETY AREA AND
• CORPORATE AREA DEVELOPMENT
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0
NCPIN OWNERNAME1
168510-45-2930 M & M Holding, LLC
P O box 2769
Smithfield, NC 27577-0000
168510-26-8201 Johnston County Airport Authority
3146 Swift Creek Road
Smithfield, NC 27577-9803
168510-37-2383 Oak Knoll, LLC and RET Properties LLC
4700 Homewood CT Suite 220
Raleigh, NC 27609-0000
168510-35-7343 Steven H. Hower
Hubert Gower Life Estate
720 Chestnut Drive
Smithfield, NC 27577-0000
168510-35-4434 Nell Wood Lee
579 Lee Farm Lane
Smithfield, NC 27577-9318
168510-35-7728 Steven Howard Gower
1707 Windsor Road
Kinston NC 28504-0000
168500-41-0730 Elizabeth G. Batten
307 Monticello Drive
Wilson NC 27893-1633
168500-40-6654 Fay T. Barnes
P O box 1332
Smithfield, NC 27577-1332
168509-27-2402 Molly C. and Stagg N. Sanders
C/O first Citizens Bank, TSA
100 S Elm Street
Greensboro, NC 27401-0000
168510-36-3467 Johnston County Airport Authority
3146 Swift Creek Road
Smithfield, NC 27577-9803
168510-35-3135 Gregory T. and Brenda E. Hare
2875C US HWY 70 West Business
Smithfield, NC 27577-0000
168510-35-3382 Kimberly Gower Johnson
516 S 4th Street
Smithfield, NC 27577-4454
168500-14-1603 Nancy S. Breech
C/O Nancy S. Bunn
769 Little Creech Church Road
Clayton, NC 27520-0000
167500-94-2226 Almond R. Warrick, JR.
20 Azalea Drive
Smithfield, NC 27577-4817
APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT (33CFR 325)
SUPPLEMENTAL INFORMATION SHEET
JOHNSTON COUNTY AIRPORT EXTENDED RUNWAY SAFETY AREA AND
CORPORATE AREA DEVELOPMENT
NCPIN OWNERNAME1
168500-04-9346 David R. and Grace S. Knox
3147 Swift Creek Road
Clayton, NC 27520-6878
168509-06-4183 Byrds Wholesale, INC.
3777 us highway 70 bus w
Clayton, NC 27520-0000
168500-04-4240 DMK & Associates
3382 Swift Creek Road
Clayton, NC 27520-0000
168400-19-7189 Larry G. and Rhonda C. Hicks
620 Ogburn Road
Smithfield, NC 27577-0000
168400-29-8230 Larry G. and Rhonda C. Hicks
620 Ogburn Road
Smithfield, NC 27577-0000
168509-16-5772 William M. Sanders Heirs
Sanders Greystone, LLC
2801-108 Glenwood Gardens Lane
Raleigh, NC 27608-0000
167500-91-2820 Blackmon Property Group, LLC
P O Drawer 2318
Smithfield, NC 27577-0000
168500-04-6049 David R. and Grace S. Knox
3147 Swift Creek Road
Clayton, NC 27520-6878
168505-27-4659 Jamal A. and Terrie Qudura
4117 Brewster Drive
Raleigh, NC 27606-0000
168509-05-3846 Byrds Wholesale, INC.
3777 us highway 70 bus w
Clayton, NC 27520-0000
168500-04-5363 Jimmy and Claudia S. Kornegay
250 Piney Grove Road
LaGrange, NC 28551-0000
168509-05-2529 Carolina Property Systems, LLC
128 Airport Industrial Drive
Clayton, NC 27520-0000
168500-04-7491 Carolina Property Systems, LLC
104 Airport Industrial Drive, Suite 101
Clayton, NC 27520-0000
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Johnston County Airport
Runway Safety Area and
Corporate Area Development
Application for
US Army Corps of Engineers 404 Permit and
NC Division of Water Quality
401 Certification
•
Prepared For:
Johnston County Airport Authority
3149 Swift Creek Road
Smithfield, NC 27577
Phone [phone]
Fax [phone]
Prepared by:
WK Dickson & Company, Inc.
720 Corporate Center Drive
Raleigh, NC 27607
Phone [phone]
Fax [phone]
0 April 2009
•
Table of Contents
1.0 Project Introduction ........................................................................................ 1
1.1 Project Description ................................................................................ . 3
1.2 Agency Coordination and Applications ...................................................... . 5
2.0 Purpose and Need for Proposed Activity ....................................................... . 7
2.1 Project Purpose ......................................................................................... . 7
2.2 Project Need ............................................................................................ . 7
2.3 Economic Impact ..................................................................................... 10
3.0 Alternatives Analysis .................................................................................. 10
3.1 Evaluated Alternatives for the RSA .......................................................... 11
3.2 Evaluated Alternatives for the Corporate Area .......................................... 13
3.3 Corporate Area Alternatives Cost Analysis ............................................... 19
3.4 Preferred Alternatives ............................................................................. 20
4.0 Environmental Setting ................................................................................ 20
4.1 Physiography, Topography, Geology, and Land Use .................................. 20
4.2 Soils ..................................................................................................... 20
4.3 Water Resources .................................................................................... 22
5.0 Biological Resources .................................................................................. 24
5.1 Plant Communities ................................................................................ 24
5.2 Wildlife ................................................................................................. 26
6.0 Cultural Resources ..................................................................................... 28
• 7.0 Jurisdictional Issues .................................................................................... 28
7.1 Jurisdictional Wetlands .......................................................................... 28
7.2 Isolated Wetlands .................................................................................. 32
7.3 Streams ................................................................................................. 32
7.4 Riparian Buffers ..................................................................................... 32
8.0 Jurisdictional Impacts ................................................................................. 32
8.1 Wetland Impacts ................................................................................... 33
8.2 Stream Impacts ...................................................................................... 33
8.3 Riparian Buffer Impacts .......................................................................... 33
9.0 Mitigation ................................................................................................. 33
9.1 Mitigation Procedure ............................................................................. 34
9.2 Compensatory Mitigation Plan ............................................................... 35
9.3 Additional Mitigation Activities .............................................................. 35
10.0 Protected Species ....................................................................................... 36
10.1 Federal Threatened Endangered Species ................................................. 36
10.2 Biological Conclusions .......................................................................... 37
10.3 Federal Species of Concern .................................................................... 39
11.0 Environmental and Public Interest Factors ................................................... 40
11.1 Physical/Chemical Characteristics and Anticipated Changes ..................... 40
11.2 Biological Characteristics and Anticipated Changes ................................. 40
11.3 Human Use Characteristics and Impact ................................................... 40
11.4 Secondary and Cumulative Impacts ........................................................ 42
12.0
13
0 Conclusion ................................................................................................
References 42

• . ................................................................................................. 43
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List of Figures
Figure 1. USGS Quadrangle ..............................................................................2
Figure 2. Aerial Photograph ..............................................................................6
Figure 3. Corporate Area Alternatives ..............................................................14
Figure 4. Soil Survey ......................................................................................23
Figure 5. FEMA Floodzones ............................................................................25
Figure 6. NWI Wetlands .................................................................................30
Figure 7. Waters of the U.S .............................................................................31
List of Tables
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Table 1. Projected Aircraft operations and based aircraft, JNX .............................. 3
Table 2. Projected General Aviation Operations by Category, JNX .................... .. 3
Table 3. Summary of Agency Meetings ............................................................. .. 5
Table 4. Facility Requirements for the Johnston County Airport ......................... .. 9
Table 5. Historic Population Levels, Johnston County, NC ................................ 10
Table 6. Evaluated Alternatives for the Extended Runway Safety Area ................ 11
Table 7. General Evaluation Matrix for Alternatives for Corporate
Area Development ........................................................................ 13
Table 8. Environmental Evaluation Matrix for Alternatives for Corporate Area
Development ................................................................................ 15
Table 9. Jurisdictional Impacts of Corporate Area Alternatives ........................... 15
Table 10. Summary of Construction Cost Estimates for "Build" Alternatives ......... 19
Table 11. Detailed Soil Units Within or Adjacent to Johnston County Airport ...... 21
Table 12. Jurisdictional Impacts Summary ........................................................... 33
Table 13. Federal Protected Species for Johnston County, North Carolina............ 36
Table 14. Federal Species of Concern for Johnston County, North Carolina ......... 39
Appendices
Appendix A Jurisdictional Determination Request
Appendix B Plan Sheets
Appendix C Correspondence
Appendix D Corporate Area Stormwater Plan
Appendix E RSA Culvert Report
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1.0 PROJECT INTRODUCTION
Johnston County Airport Authority (Applicant) is applying for US Army Corps of Engineers
(USACE) 404 Individual Permit and NC Division of Water Quality (NCDWQ) 401 Water
Quality Certification for: (1) Extended Runway Safety Area (RSA) at the northern end of
Runway 21 to the required 1000 feet (from existing 300 feet); and (2) Development of
needed additional Aircraft Parking Apron and Hangar space (Corporate Area). These
projects were documented in an Environmental Assessment (EA) submitted to the NCDOT
Department of Aviation in September 2003. A FONSI was received in September 2004
(Appendix Q. This permit application details the project's purpose and need, alternatives,
existing conditions, environmental effects, and compensatory mitigation plan.
The primary design and permitting project team members are:
• Johnston County Airport Authority - Applicant - Ray Blackmon, Airport Director
• WK Dickson - Consulting Engineers - project design, NEPA documentation,
permitting - Carroll Triplett, Senior Project Manager
An RSA is a cleared, non-paved, graded area systematically located about the extended
runway centerline. Its purpose is to support aircraft that may overrun or undershoot the
runway without injury to the occupants or major damage to the aircraft. RSAs are required
by the FAA and are critical at airports with relatively short runways and larger aircraft.
The Corporate Area is located adjacent to the aircraft taxiways. Apron area is available for
external parking/tie-down of aircraft. Hangars offer inside storage of aircraft. The present
and projected growth pattern places a capacity constraint on aircraft parking apron and
additional hangar space.
Johnston County is located in eastern North Carolina, bounded on the south by Sampson
County, on the west by Harnett County, on the northwest by Wake County, on the
northeast by Nash and Wilson Counties, and on the east by Wayne County. Johnston
County Airport UNIX) is located approximately 25 miles southeast of Raleigh-Durham
International Airport (RDU) and approximately 3.5 miles northwest of the Town of
Smithfield (Figure 1).
JNX is a designated reliever airport for RDU. Based aircraft levels at JNX have increased
from 49 in 1985 to currently over 100 based aircraft. Aircraft operations have also
increased from a 1985 level of approximately 33,000 annually to approximately over
73,000 operations annually. Operations at the Airport have evolved from primarily flight
training to a corporate/business aircraft operation. As a reliever to RDU, JNX is designed to
be a viable alternative to General Aviation (GA) operators in order to relieve congestion
and enhance safety at RDU. Though an increase in based aircraft has been experienced,
there has been a disproportionate increase in the number of overall aircraft operations.
Increases in corporate aircraft traffic have resulted in a reduced amount of smaller GA
operations. This demand shift is expected to continue throughout the 20-year forecast
period presented in the JNX 2007 Airport Layout Plan. Table 1 and Table 2 detail the
projected aircraft operations through 2027. In sum, larger and faster business class aircraft
are expanding their role as the design aircraft at JNX.
Whitluc HeWts -
n 1 Ij ? f311F ,.? ?F •_`i Cc?+ J?naton k ti m • r ^i ? ?? { ? I
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Proposed 620 LF
Triple Box Culvert System ERK
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Figure 1. Legend
Johnston County Airport Roads
USGS Topographic Map Johnston County Airport
• Johnston County, NC Property Boundary
WATERSHED SCIENCES 0 1,000 2,000 4,000 Limits of Disturbance
USGS Quadrangles Feet Proposed Box Culvert System
Source: Powhatan, Selma 1 inch equals 2,000 feet Streams
•
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Table 1. Projected Aircraft operations and based aircraft, JNX
Y Operations (OPNS) T
t
l Based Aircraft OPNS per
ear Local Itinerant o
a (BAC) BAC
2007 40,343 33,008 73,350 114 643
2012 43,772 35,813 79,585 127 626
2017 46,755 38,254 85,010 138 618
2022 49,914 40,839 90,753 150 605
2027 53,208 43,534 96,742 163 593
Source: 2007 Update to Airport Layout Plan; Projections based on US Fleet Mix General
Aviation Forecasts
Table 2. Projected General Aviation Operations by Catet:orv, INX
Year Single
Engine Multi
Engine jet Rotor Other Total
2007 62,348 7,335 2,201 734 734 73,350
2012 67,647 7,959 2,388 796 796 79,585
2017 72,258 8,501 2,550 850 850 85,010
2022 77,140 9,075 2,723 908 908 90,753
2027 82,231 9,674 2,902 967 967 96,742
Source: 2007 Update to Airport Layout Plan; Projections based on US Fleet Mix General
Aviation Forecasts
Business class aircraft operate at higher approach and departure speeds than smaller and
lighter GA aircraft. JNX is categorized as a C-II airport. C-II category aircraft have an
approach speed of less than 141 knots (C) and a maximum wing span of 79 feet (II). An
RSA is normally a turfed area that must be able to accommodate the Critical Aircraft. RSA
dimensions for a C-11 Airport must be 1,000 ft. in length beyond the runway end and 500 ft.
wide. Existing RSA dimensions for the Runway 21 is approximately 300 ft. long by 300 ft.
wide. Existing runway pavement length is 5,500 ft; to operate under a deviation from
standard RSA criteria the Airport has established declared distances that make available
only portions of the runway for use in calculating ground roll for departure and landing.
Only 5,450 ft. of runway pavement is available for take-off and 5,100 ft. is available for
landing. Remaining portions of the runway pavement and the existing runway safety area
are designated as area for safety overrun. Only the shortened declared runway lengths are
usable. Thus, the utility of the airport is operationally degraded.
1.1 Project Description
The JNX project consists of two major components or schedules. The overall goal of
Schedule I is to bring the Runway 21 RSA up to FAA safety standards. In order to
accomplish this goal, the runway needs to have a 1,000-foot long by 500-foot wide safety
area, consisting of minimal grade changes and no objects higher than 3 inches. The other
schedule of work includes the general site preparation of a future corporate area consisting
of T-Hangars, Tie-Downs and Corporate Box Hangars for both itinerant and based aircraft.
A portion of the stormwater management system will be installed, but the remainder of
pipes, pavement, buildings and all associated work will be constructed at a later date.

The current RSA of Runway 21 at the Johnston County Airport is approximately 300' long
prior to a sharp change in grade, resulting in an elevation change exceeding 20' in some
locations. Reedy Branch meanders through this low area off the end of Runway 21 and has
thusly created a wetland area that will be impacted. In order to bring the RSA up to grade,
Reedy Branch must be conveyed through the proposed fill that is required. As part of
Schedule I, approximately 620 linear feet of a triple box culvert, consisting of one 9'x7'
center barrel and two outer 10'x6' barrels will be installed to convey the normal and
elevated flowrates associated with Reedy Branch. A wingwall unit will be installed on each
end of the culvert; each wingwall unit will have a headwall, wingwalls, and apron. The
invert of the center barrel of the culvert will be installed lower than the outer barrels to
allow for the normal volume of Reedy Branch to pass, as well as serve as a natural, silty
streambed for wildlife and vegetation. It is proposed that the culvert barrels will be precast
structures and the wingwall units will be cast in place.
Once the culvert has been installed, or during culvert installation, embankment of the new
RSA will begin. The required volume of fill dirt is available on the east side of the runway
as a stockpile area used during an older project. Geotechnical investigation results confirm
that this area can be used as a borrow area and the haul distance will be minimal for the
Contractor. The embankment will be placed in lifts and compacted per the requirements of
the FAA standard specifications. Once the RSA is brought up to grade, stormwater
conveyance methods will be installed and include such items as slope drains, drop inlets
and small ditches/swales.
Schedule II of this project consists of the initial site preparation of an overall Corporate Area
development. The goal of this schedule of work is to provide a working platform that the
Airport can utilize in future development of the Airport. The proposed Corporate Area site
is sandwiched between the upper hangar development area, which is closer to the terminal
building and the lower hangar development area, which is the nearest Airport development
to the Runway 21 threshold. The Corporate Area site is approximately 22 acres of dense
early successional woods, approximately 10.5 acres of which are non-riparian wetlands.
The scope of Schedule II will include the construction of a detention pond sized for the
ultimate buildout of the Corporate Area, as well as nearly half of the stormwater drainage
pipes and swales required for the ultimate development of the area. As part of the initial
phase of development associated with Schedule II, temporary trapezoidal ditches will
convey stormwater to the detention pond intended for ultimate stormwater management.
Upon the future development of the Corporate Area, each individual building site plan can
tie in to the intended overall drainage system.
Typical erosion and sediment control measures will be constructed during both schedules
of work, as will all required tree/wetland protection fencing or measures. Final site
stabilization for both schedules of work will be achieved through measures recommended
and approved by the funding and regulatory agencies associated with the project.
Figure 2 depicts the proposed RSA and Corporate Area project. Both schedules of work will
impact wetlands, both riparian and non-riparian. RSA construction will also have stream
and stream buffer zone impact implications, thus resulting in the need for wetland
mitigation and stream and buffer zone mitigation.
4

1.2 Agency Coordination and Applications
The Authority is submitting an Individual Permit application to the USACE requesting
authorization to permanently impact 8.84 acres of riparian wetland, 10.31 acres of non-
riparian wetland, and 779 linear feet of stream channel pursuant to Section 404 of the
Clean Water Act of 1972 (33 USC 1344). This action will require water quality certification
from the State of North Carolina through the NCDWQ (NCGS 143-215) pursuant to Section
401 of the Clean Water Act. Approval from NCDWQ is also being sought for proposed
48,467 square feet of Zone 1 and 30,659 square feet of Zone 2 riparian buffer impacts,
pursuant to the Neuse River Basin Riparian Buffer Rules.
The purpose of this document is to provide an evaluation of five criteria: 1) purpose and
need for the proposed activity; 2) alternatives analysis to accomplish the objectives of the
proposed activity; 3) existing conditions in the proposed project area; 4) environmental
effects from the proposed activity; and 4) compensatory mitigation plan for unavoidable
impacts to jurisdictional areas. This document is intended for use by USACE and NCDWQ
as the basis for determining the applicant's compliance with the Section 404 (b) (1)
guidelines and other Section 404 permitting requirements, and Section 401 water quality
certification.
WK Dickson and the Applicant have held several meetings with regulatory agencies,
including USACE, NCDWQ US Fish and Wildlife Service (USFWS), and NC Wildlife
Resources Commission (NCWRC). The Table 3 below summarizes the pre-application
. agency meetings relevant to this project. Appendix C contains pertinent correspondence
and memoranda.
Table 3. Summary of Agency Meetings
Date Agencies Present Meeting Purpose
May 25, 2005 USACE, NCDWQ, USFWS, General pre-application meeting
NCWRC, WK Dickson,
Authority
January 25, USACE, WK Dickson Field review of additional
2006 delineation
April 9, 2007 USACE, WK Dickson, Authority Discussion of alternatives analysis
for Corporate Area
May 14, 2008 USACE, NCDWQ, WK Dickson Pre-application meeting to discuss
stormwater controls and alternative
analysis for Corporate Area
July 22, 2008 USACE, NCDWQ, WK Dickson Field review of additional
delineation and stream
determination of proposed
Corporate Area

5
4

0
r?
u
Subsequent to these meetings, substantial changes were made to the site plans to address
alternatives analysis, avoidance and minimization, and jurisdictional determination.
Appendix A contains a jurisdictional determination request to reflect the updated wetland
boundaries on the JNX property.
The proposed project will also require a sediment and erosion control permit to be
obtained from NC Division of Land quality. This permit has not been applied for by the
Authority.
2.0 PURPOSE AND NEED FOR PROPOSED ACTIVITY
2.1 Project Purpose
Increases in based aircraft, total operations, and increased business aircraft activity at the
Johnston County Airport have constrained existing facilities and reduced operational safety
margins in terms of FAA airport design standards and guidelines, ground-side circulation,
and aircraft parking.
Runway Safety Area
The RSA will be a cleared and graded area 1000 ft. long and 500 ft. wide from the
approach end of Runway 21. FAA design criteria require that the RSA for a Category C-II
airport be 1000 ft x 500 ft. The existing RSA is 300 ft x 300 ft. The increased RSA provides
• a safer environment for aircraft and aircraft occupants in the event of an overshoot,
undershoot, or the need to abort a takeoff roll. Subsequent to a commercial airliner crash in
Little Rock, Arkansas, the FAA reiterated and strengthened its position to not allow non-
standard RSAs.
Corporate Area
To relieve congestion and increase needed aircraft ramp circulation, the existing aircraft
parking apron is to be expanded. Current efforts to increase apron and taxi space included
the removal of several aircraft tie down positions to allow a wider taxi lane area for the
business type aircraft to utilize when taxiing. This provided a temporary solution to taxi
lane space, but effectively reduced the amount of aircraft storage space on the apron. The
proposed project entails apron expansion for the purposes of additional aircraft parking and
additional aircraft hangar storage. This will allow the needed 900 sq. ft per aircraft of space
recommended by the FAA.
2.2 Project Need
Runway Safety Area
Actual and projected increases in total operations, as well as increased operations by the
business jet and corporate aircraft at Johnston County Airport are affecting the capacity and
the safety of the Airport. Changes to Federal Aviation Administration requirements have
necessitated that an extended RSA is necessary to provide safety for aviators, passengers,
and personnel on the ground, and to bring the Airport into compliance with current FAA
standards and regulations.
i The RSA enhances the safety for airplanes that undershoot or overrun the runway end. It
also provides greater accessibility by fire fighting and rescue equipment to aircraft utilizing
the RSA. The RSA is a cleared, graded and seeded area symmetrically located about the
•
extended runway centerline and adjacent to the end of the runway safety area. Its length, in
this case, is approximately 1,000 feet from the existing runway end, measured along the
extended runway centerline and its width is 500 feet. The extended runway safety area will
be accommodated on existing airport property and no land acquisitions are necessary.
The land area required for the proposed project includes crossing over Reedy Branch
(requiring a culvert) fill in a riparian wetland, and loss of stream buffers.
Corporate Area
Expansion of the terminal area has been a critical need at JNX for several years, and based
on the planned growth, will become increasingly important. There is presently no vacant
hangar space and apron space is at capacity. Due to the size of aircraft operating at the
airport, the airport has been forced to move aircraft and remove valuable parking locations
to allow aircraft to safely transit through the terminal area. The preferred development area
for terminal expansion is on the west side of the runway, south of and adjacent to the
existing terminal area.
Additional apron area was determined as part of the Airport's Airport Layout Plan (ALP)
Update and Master Plan in 2007. The specific hangar and apron configuration which meets
the purpose and need is as follows:
• 3 100' x 100' box hangars
• 1 100' x 60' box hangars
• 2 60' x 60' box hangars
• 6 T-Hangar buildings, accommodating approximately 64 aircraft in individual bays
• 33 tie-down spaces
• 115 Automobile Parking Spaces with circulation
• Security fencing and controlled access, as appropriate, for each alternative
Total square footage of the hangar area is approximately 635,000 square feet (including
circulation), and apron space is approximately 157,000 square feet (including circulation).
Table 4 presents all the development that was presented in the FAA Sponsored ALP.

8
•
Table 4. Facility Requirements for the lohnston Countv Airport

•
ITEM EXISTING STAGE 1 STAGE 11 STAGE III
1. Runway 5-21
a. Length & Width 5,500' x 100' N/C 6,000' x 100' N/C
(w/overlay)
b. Strength (lbs.) 65,000 N/C 100
000 N/C
-dual wheel (published) RSA ,
RSA / EMAS
Grading
2. Taxiways Full Parallel N/C Widened to N/C
(35' wide) 50'
3. Navigational Aids & PAPI-4 Both HIRL N/C N/C
Lighting Rwys GPS Rwy 3
MIRL, MITL GPS Rwy
ILS (Rwy 3) 21
MALSR (Rwy 3)
NDB (Rwy 21)
AWOS
4. Aircraft Storage
a. Tiedown # 60 80

b. Tiedown area SY (Est.)
21,500
28
200 80 80

c. Apron area SY
46,000 ,
60
000 28,200 28,200

d. Total Hangar Spaces
90 ,
128 60,000 60,000

(Est.)
70
90 152 175

e. T-Hangars
f. Total Hangar area SF
220,370
290,370 114
333,570 138
431,570
(Est.)
5. Terminal SF 2,150 9,000 N/C N/C
6. Total Auto Parking
a. Spaces 75 115 145 175
b. Area SY (Est.) 2,000 3,900 4,900 5,900

7. Fuel Storage (gal.) 10,000 (abv- N/C N/C N/C
a. 100 LL grnd) N/C N/C N/C
b. Jet A 2,000 (truck)
N/C N/C N/C
15,000 (abv- N/C N/C N/C
grnd)
2,000 (truck)
8. Property
a. Fee (acres) 670.97 N/C N/C N/C
b. Easement (acres)
42.48 N/C N/C N/C
9. Perimeter Fencing (If.) 9,780 13,380 N/C N/C

•
2.3 Economic Impact
Johnston County is bounded by Sampson County to the south, Harnett and Wake Counties
to the west, by Nash County to the North, and by Wilson and Wayne Counties to the east.
The County seat is Smithfield, which is close to the Airport and is the County's largest
Town. Other towns in Johnston County include Clayton, Selma, Benson, Kenly, Four Oaks,
Pine Level, Princeton, Wilson's Mills, and Micro.
Local manufacturers in Johnston County include Caterpillar, Eaton Corporation, Novo
Nordisk, and Talecris.. Manufacturing employs 22 percent of the County's workforce.
Much of the population of Johnson County works in Wake County because of the close
proximity of the Research Triangle Park, The University System, medical complexes, and
State Government Offices. Interstates and US Highways provide easy access to these
institutions. Within and passing through Johnston County are Interstates 95 and 40, US
Highways 70, 301, and 701, and State Highways 39, 96, and 210.
Population
Historic population levels, 1990-2001 and projected, 2001-2019 are presented in Table 5.
Population estimates and projections were provided by the North Carolina State
Demographics Unit and are derived from U.S. Census data. As the table indicates, Johnston
County's population growth is expected to continue to be strong, which compliments a
strong propensity for growth in aviation activity.
Table 5. Historic Population Levels, Johnston County, NC
ITAR POPLT.ATI©N PROJECTED PERCENT
EiCREAS'E
13istolical*
1990 - 1908
213,375
--
1999 128.78-0 4.5%
2000 123,074 3.5°
Projected"
2001 - 20C)9
161,W9
240 r, (C 3aage from 2M)
2010 - ?019 206,556 , ,fl p change from 2D09
.avwrr. North Carolina L?emographtcs knit, 2002
w Estmntes
3.0 ALTERNATIVES ANALYSIS
Under the Section 404 (b)(1) Guidelines, a practicable alternative must be available to the
applicant. Pursuant to 40 CFR 230.10(a)(2) practicable alternatives are those alternatives
that are "available and capable of being done after taking into consideration cost, existing
technology, and logistics in light of overall project purpose". The preamble to the 404(b)
Guidelines states, "if an alleged alternative is unreasonably expensive to the applicant, the
alternative is not practicable". Section 40 CFR 230.10 (a) of the Guidelines state that "no
discharge of dredged or fill material shall be permitted if there is a practicable alternative to
the proposed discharge which would have less adverse impact on the aquatic ecosystem,
so long as the alternative does not have other significant environmental consequences".
10
•
•
The Alternatives for the RSA and Corporate Area have been evaluated according to how
each fulfills the purpose and need, environmental concerns, and associated economic
criteria.
3.1 Evaluated Alternatives for the RSA
Table 6 details the RSA Alternatives evaluation.
Table 6. Evaluated Alternatives for the Extended Runway Safety Area

S 1 •?l
a 1
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e• ma
y. ',
a
`.feet FAA RSA Standards Yes No ?".• 7"es No
Increased Safety Margin fo: Yes NO Ko Yes No
d f
p
s
d Larger Aircraft
e an
ee
urpo fellow fuli use of Current Yes Ko No Yes No
Rumuzy Pavement
Continue as viable "Reliever
" Yes No NO LXK No
Opnon
for RD

Environmental Wetland Impacts Yes yes Yes LT'Ii No
Concerns Endangered Species Impacts* No No NO NO No
Stream Impacts Yes No Yes L;NK :,To
Cost Effective Yes NO NO Ke Na
Economics Significant Propem• Acquis:tion No Ne No Yes No
Increased Economic Asset to the

Area Ye„ Yes 140 , 'K 1*70
Alternative A: Extend the RSA northward 1,000 feet.
Alternative B: Extend the RSA southward 1,000 feet.
Alternative C: Reduce the Dimensions of the RSA.
Alternative D: Relocate JNX.
Alternative E: "No Build" Alternative.
Alternative A (preferred alternative) - The first evaluated Alternative is the extension of the
Runway Safety Area 1,000 feet to the north from the existing Runway 21 end. This
extension will require crossing 779-feet of Reedy Branch. The Creek will be culverted so
water flow continues through the Creek. An anticipated 8.84 acres of riparian wetland will
be cleared, filled and graded to create the RSA. And, 48467 square feet of Zone 1 and
30,659 square feet of Zone 2 stream buffer will be lost.
Presently, most of the area of proposed construction for the RSA is within the airport's
Runway Protection Zone (RPZ). Because of it's location within the RPZ, the wetland and
stream areas are currently kept clear of trees and tall vegetation. Once cleared, the entire
RSA area will need to be filled and graded. Any impacts to the stream, stream buffer, and
wetlands will need to be mitigated. Additionally, permits will be needed from the USACE
. and NCDWQ.

Alternative A meets all the required evaluative factors for the project. The alternative meets
the purpose and need as well as the economic requirements for the project. No impacts to
protected species are anticipated with Alternative A.
Alternative B - The second evaluated Alternative is the extension of the RSA southward
1,000 feet. The required RSA is needed as an aircraft overrun for aircraft departing and
landing to the Northeast on Runway 03. A current RSA exists for the runway 21 and is for
aircraft overrunning the runway to the southwest. In sum, this alternative does not meet the
project purpose and need. Nor will it be effective or useful to construct an RSA at the
opposite end of the runway from where it is most needed.
Runway 03 is the primary instrument landing runway and an RSA of sufficient length is
needed at the far end of the runway for aborted take-off rolls and emergency landing roll-
out to protect aircraft occupants and allow access by fire and rescue crews and equipment.
Extending the RSA to the south is of no benefit and similar to the No Project Alternative.
Alternative C - Reducing the RSA Dimensions. Any expansion of the RSA will impact
wetlands and streams. A reduced safety area will not bring JNX into compliance with FAA
design criteria and provide little change from the current condition. Alternative C has the
potential of less impact to Reedy Branch and could potentially require less wetland area
impact. However, construction of an RSA of dimensions less than FAA standard will
produce little benefit and little improvement to the utility and safety of JNX.
An RSA of inadequate length requires JNX to use declared distances. Declared distances
effectively shorten the length of actual pavement available for use by arriving and departing
aircraft. Declared distances require that portions of the paved runway be used as a safety
overrun for takeoff and landing distance calculations by pilots. The calculations force pilots
to recognize that only a portion of the runway is available for rollout: the remainder is for
safety overrun. Consequently, trip distances are reduced because of the need to reduce
onboard fuel loads to make an aircraft lighter and takeoff or land in less distance and
aircraft useful loads (cargo and passengers) are reduced to compensate for the calculated
shortened runway for similar reasons.
Alternative D - Relocating JNX. This alternative is not an economic, environmental, or a
practical alternative. Several hundred acres of land would need to be acquired, cleared and
new facilities constructed. This alternative is not prudent or cost effective given the extent
of the existing facilities. Costs for site selection studies and construction of a new airport
can exceed $25 million. This alternative is not a preferred alternative.
Alternative E - The No Build option, in the short term, would preserve the existing
surrounding natural environment. However, the No Build alternative is not consistent with
the Federal Aviation Administration requirements, in that the project is needed to bring the
JNX's RSA within FAA standards and allow the airport to fulfill its role as an important
reliever to RDU. In light of historic trends in airport activity and projected increased
demand, JNX will need to continue to provide services and this safety project will become
increasingly important. Therefore, the No Build alternative is not a preferred alternative.
12
0
0
0
3.2 Evaluated Alternatives for the Corporate Area
The 2003 Environmental Assessment presented four alternatives of the proposed
apron/hangar expansion project:
Alternative 1: Develop apron and hangar parking area between existing north and south
apron areas.
Alternative 2: Develop apron and hangar parking area northwest of and adjacent to
current terminal/apron area and across Swift Creek Road.
Alternative 3: Develop apron and hangar parking area on east side of existing runway at
the northern end of the runway.
Alternative 4: "No Build" Alternative
Figure 3 illustrates the alternatives for Corporate Area development at )NX. Table 7
summarizes the evaluation of each alternative for general criteria such as purpose and
need, environmental concerns, and economics. Table 8 summarizes the evaluation of each
alternative for specific environmental impact types, as outlined by FAA Order 5050.4A, the
"Airport Environmental Handbook". Table 9 summarizes the anticipated impacts to
jurisdictional areas.
Table 7. General Evaluation Matrix for Alternatives for Cornorate Area nevelnnment
Level Factors Alternative Alternative Alternative Alternative
1 2 3 4
Relieve Apron

Congestion Yes Yes Yes No
Provide
Purpose and Additional Yes Yes Yes No
Need Aircraft Storage
Allow Airport to
More Safely

Handle Larger Yes Yes Yes No
Aircraft
Wetland Impacts Yes Yes Yes No
Stream Impacts No Yes Yes No
Environmental Buffer Impacts No Yes Yes No
Concerns Protected No No No No
Species Impacts
Residential

Relocation No Yes No No
Cost Effective Yes No No Yes
Significant
Property Yes Yes Yes No
Economics Acquisition
Increased
Economic Asset Yes Yes Yes No
to Area
13
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Table 8. Environmental Evaluation Matrix for Alternatives for Corporate Area
Development
Impact Type Alternative
1 Alternative
2 Alternative
3 Alternative
4
Noise No No No No
Compatible land use No No No No
Social impacts No Yes Yes No
Induced social impacts No No No No
Air quality No No No No
Water quality No No No No
DOT Section 4(f) lands No No No No
Cultural Resources No No No No
Biotic Communities No No No No
Woodlands No No No No
Protected Species No No No No
Wetlands Yes Yes Yes No
Streams No Yes Yes No
Stream buffers No Yes Yes No
Floodplain No No No No
Coastal Zone Management No No No No
Coastal Barriers No No No No
Wild and Scenic Rivers No No No No
Prime and unique farmland No No No No
Energy supply and natural resources No No No No
Light emissions No No No No
Solid waste No No No No
Construction impacts No No No No
Table 9. Jurisdictional Impacts of Corporate Area Alternatives
Alternative Alternative Alternative Alternative Alternative
Impact Type 3 3
1 2
(Culvert)
(Bridge) 4
Riparian Wetland None 6.00 5.09 2.00 None
(acres)
Non-riparian wetland 10.31 None 1.75 1.75 None
(acres)
Stream (linear feet) None 250 270 None None
Stream Buffer Zone 1 None 15,000 16,200 None None
(square feet)
Stream Buffer Zone 2 None 10,000 10,800 None None
(square feet)
Alternative 1 (preferred alternative): The first apron expansion alternative provides
additional aircraft parking apron and hangar sites between the existing apron/terminal areas
on the western side of the airport. This area will ultimately provide needed space for
aircraft and provide the needed additional aircraft movement area that is needed to satisfy
the expected demand.
15
•
•
•
Alternative 1 meets the requirements of purpose and need, environmental concerns (with
mitigation) and economic constraints of the project, and is the Applicant's preferred
alternative.
The proposed project area is in a non-riparian wetland that has been previously cleared of
trees. New growth in the area has occurred since the trees were cleared circa 1995 and is
composed of early successional hardwood species. The project will require the filling of
approximately 10.31 acres of wetlands. The areas surrounding the wetland have been
developed and, with the exception of subsurface connections via drainage pipes, the
wetland is isolated from other wetlands and streams.
The wetland impact is the primary environmental concern regarding this alternative. No
stream impacts are associated with the wetland or any other part of the alternative. Also, no
other impacts, such as noise, air quality, compatible land use, historic/archaeological
resources, or endangered species are anticipated from this project alternative, as per
coordination and surveys documented in the 2003 EA.
Securing the area by fencing and gates is nominal (approximately 2,000 feet of fencing) and
can easily tie into security features of the existing terminal area. Additionally, since this
would be a "natural" expansion of the apron/hangar area visual security is relatively easy to
accomplish since the entire area is easy to view from the current aircraft operating and
terminal area.
Alternative 2: This apron expansion alternative provides aircraft apron and hangar parking
northwest of the existing terminal area.
Alternative 2 contains hangar square footage and tie-down spaces comparable to
Alternative 1 (e.g., approximately 200,000 square feet of hangar space). While the exact
configuration of the buildings, apron, and vehicle parking spaces are modified to suit this
alternative's specific site conditions, the alternative meets the purpose and need in the
same manner as the preferred Alternative 1 does.
Due to this alternative's footprint extending west of State Road 1501 (Swift Creek Road),
development of this site would require the acquisition of approximately 28 acres of
property, the relocation of 1 family, and relocation of Swift Creek Road.
Additionally, the alternative impacts up to 6 acres of riparian wetlands, 250 linear feet of
stream impact, and 25,000 square feet of stream buffer impact, in the northern portion of
this alternative's proposed footprint. The relocated road would travel over Reedy Branch
and require a bridge or culvert crossing over it.
In terms of endangered and threatened species,
were identified in the 2003 EA as being prey
including in the vicinity of the airport. The U
vicinity of JNX is not suitable mussel habitat d
However, the project, as proposed in Alte
sedimentation/siltation into Reedy Branch to p
Creek.
16
the dwarf wedge mussel and/or its habitats
?nt in the Swift Creek/Neuse River basin,
&WS has stated that Reedy Branch in the
ie to the numerous beaver impoundments.
native 2, would be designed with zero
-otect mussel habitat downstream in Swift
•
No other impacts, such as noise, air quality, compatible land use, historic/archaeological
resources are anticipated from this project alternative, as per coordination and surveys
documented in the 2003 EA submittal and its appendices.
Security for the alternative would be somewhat more difficult to achieve with almost 3,500
linear feet of fencing and 1 gate would need to be installed to provide controlled access.
Visual surveillance would be more difficult because the development would not be in view
of the terminal area.
The relocated Swift Creek Road in this alternative has significantly sharper curves than
currently exists, which would affect the flow of traffic and likely cause congestion and
safety concerns. Maintaining a smoother alignment comparable to the existing road would
require significantly more land acquisition, which would add additional costs to the
alternative. The industrial park across the road from the existing terminal area would be a
particularly costly acquisition.
Because of residential and road relocations, disruptions to local residents from construction
of the site (e.g., traffic flow), and security measures, this alternative is not a preferred
alternative. Therefore the project does not meet the Environmental and Economic Concerns
for the project, as shown in Table 7.
Alternative 3: Corporate Area Alternative 3 provides additional aircraft apron and hangar
parking on the east side of the Runway End 21, directly opposite the existing terminal area
As with Alternative 2, this alternative provides comparable hangar and apron space as
Alternative 1 in order to meet the stated purpose and need.
This alternative would require impacting up to 5.09 acres of riparian wetlands for an access
road and site grading, provide a serious security concern for the airport due to its remote
location, and would require the construction of a partially elevated access road from U.S.
Highway 70 to the site.
Potentially impacted wetlands consist of a relatively undisturbed riparian corridor
associated with Reedy Branch and a portion of existing on-site mitigation from a previous
airport project. Dominant canopy tree species in the affected area are approximately 50
years in age, ranging up to 100 years in some cases. Also, there is beaver activity in the
wetland, including girded and/or felled trees, and ponding from beaver dams.
In terms of endangered and threatened species, the dwarf wedge mussel and/or its habitats
were identified in the 2003 EA submittal as being present in the Swift Creek/Neuse River
basin, including in the vicinity of the airport. The USFWS has stated that Reedy Branch in
the vicinity of JNX is not suitable mussel habitat due to the numerous beaver
impoundments. However, the project, as proposed in Alternative 2, would be designed
with zero sedimentation/siltation into Reedy Branch to protect mussel habitat downstream
in Swift Creek.
• Moreover, property acquisition of approximately 1.26 acres would be required for the
access road corridor to U.S. Highway 70. The access road would also require a crossing of
Reedy Branch, either through a culvert or bridging, and would impact up to 270 linear feet
17
•
of stream, 27,000 square feet of stream buffer, 5.09 acres of riparian wetland, and 1.75
acres of non-riparian wetland.
Security fencing, controlled access gates, and video surveillance may be needed since the
site is "remote" from the rest of the airport and difficult to readily access.
In consultation with the North Carolina Department of Transportation's (NCDOT's) District
Office in Goldsboro, constructing an appropriate junction or intersection with U.S.
Highway 70 would be extremely difficult for two reasons. First, Alternative 3's proposed
location of the access point is between two existing highway crossovers that are less than
2,000 feet apart. Therefore the proposed access point location would not be approved.
NCDOT guidelines for divided highways such as U.S. Highway 70 stipulate 2,000 feet as
the minimum distance between crossovers. As such, an access point would need to be
found that is at least 4,000 feet between existing crossovers. There are no such potential
access points along U.S. Highway 70 east of the Airport. Second, NCDOT strongly
discourages adding additional local traffic to U.S. Highway 70, which it considers a major
through-route between the towns of Clayton and Smithfield, especially if there are
alternative local access roads. Swift Creek Road, which is the access road for Alternatives 1
and 2, was specifically mentioned as NCDOT's preferred access into the Airport.
A major concern regarding Alternative 3, as it is located across the runway from all existing
hangar and apron development, is the lack of a parallel taxiway, either partial or full-length.
In order to most efficiently and safely maneuver aircraft taxiing into and out of Alternative
3's hangar/apron area, a full-length parallel taxiway would be needed to prevent aircraft
from having to cross the runway after landing or before take-off. The Federal Aviation
Administration (FAA) has made a major priority of reducing the risk of runway incursions,
especially due to taxiing of aircraft across active runways. A runway incursion is defined
by the International Civil Aviation Organization (ICAO) as "any occurrence at an (airport)
involving the incorrect presence of an aircraft, vehicle, or person on the protected area of a
surface designated for the landing and take-off of aircraft". With this in mind, a second
parallel taxiway for the Airport would be needed in this alternative, to preclude aircraft
from crossing an active runway, especially during inclement weather and on an
uncontrolled airfield. As such the FAA may require installation of a parallel taxiway along
with this alternative's proposed hangar and apron area. As depicted for this analysis,
Alternative 3 does not have a parallel taxiway in order for it to be meeting the purpose and
need in terms of hangar and apron space, comparable to the other "build" alternatives.
Adding a full-length parallel taxiway would add considerable cost and environmental
impacts to Alternative 3 due to terrain and wetlands along the eastern side of the runway.
Moreover, the Airport's Airport Layout Plan Update does not anticipate any development,
including a parallel taxiway, on the east side of the runway.
No other impacts, such as noise, air quality, compatible land use, historic/archaeological
resources are anticipated from this project alternative, as per coordination and surveys
documented in the 2003 EA submittal and its appendices.
Due to safety concerns regarding runway crossings to and from the hangar/apron area, the
highly problematic nature of gaining appropriate access of the site to U.S. Highway 70, in
addition to wetlands, stream, and endangered species impacts and property acquisition,
Alternative 3 is not a preferred alternative for the project.
18
C
Alternative 4: The "No Build" Alternative would leave undisturbed the existing natural
environment. However, the "No Build" alternative does not fulfill the purpose and need of
the Airport, is not consistent with the long-range plans of Johnston County and Smithfield
Area, or the North Carolina Airport System Plan, which maintains the Airport continuing its
role as an important reliever to the Raleigh-Durham International Airport. This Alternative
does not improve the safety or utility of the Airport.
In view of the current and forecasted growth at the Johnston County Airport, providing the
proper development of facilities to accommodate this activity is important to the economic
vitality of the area and the safety of the Airport, aircraft occupants, and persons on and near
the Airport. The "No Build" Alternative does not meet the purpose and need elements for
the project as stated in the 2003 EA, and it is not a preferred alternative.
3.3 Corporate Area Alternatives Cost Analysis
Each of the three "build" alternatives has costs associated with the construction activities
and facilities such as:
• Site preparation
• Drainage
• Aprons
• Taxiways
. • Box Hangars
• T-Hangars
• Environmental Mitigation
• Engineering and Other Contingencies
0
Table 10 presents a summary of estimated construction costs for the Corporate Area
alternatives. The Preferred Alternative 1 is the least expensive to fulfill the purpose and
need of the proposed project. Alternative 2's additional costs are largely driven by land
acquisition and road relocation needs, while Alternative 3's additional costs are largely
driven by large fill quantities required.
Table 10. Summary of C'nn0nirtinn C'nct Fctimatac f,-%r 11R..;1A11' AI+o...,-.+:.,.._
Cost Item Alternative 1 Alternative 2 Alternative 3 Alternative 3
(culvert) (bridge)
Grading, drainage, erosion
control, and other site work
$5,040,598
$3,297,650
$9,343,109
$8,768,949
Roads (major access and

relocations)

one
None $7,466,000
466 000

$1,153,500

$6,663,500
Paving (hangars, aprons,
taxiways)
$2,009,205
$1,421,250
$2,659,525
$2,659,525
Hangars $7,384,800 $7,384,800 $7,384,800 $7,384,800
Wetland, Stream, and buffer
mitigation $886 660 $842,100 $455,724 $53,680
Land acquisition and
residential relocation None $1,032,900 $37,800 $37,800
Fencing None $84,000 $54,000 $54,000
Engineering and Contingencies $2,349,533 $3,257,515 $3,163,269 $3,843,338
Total $17,670,796.25 $24,786,215 $24,251,727 $29,465,592
19
•
3.4 Preferred Alternatives
Extending the RSA to the North for a finished length of 1,000-feet with a width of 500-feet
(Alternative A) is the preferred alternative for the RSA. The potential impacts to Reedy
Branch will be minimized by installing a buried low flow culvert for the base flow and
stormwater controls to detain runoff. Alternative A provides the needed increase in utility
and safety not found in Alternatives B, C, and D, and is economically feasible, which meets
the project need in comparison to the other alternatives.
Alternative 1 is the preferred alternative for developing the Corporate Area. The apron area
will require filling 10.31 acres of disturbed non-riparian wetlands. The alternative is more
economically feasible in that it does not require relocating or constructing a roadway, the
purchase of property, or the displacement and relocation of residents as required by other
studied alternatives.
The primary concerns recognized in the alternatives analysis of wetland and stream impacts
and potential endangered species impacts are addressed later in this report.
4.0 ENVIRONMENTAL SETTING
4.1 Physiography, Topography, Geology, and Land Use
• JNX lies near the physiographic boundary between the piedmont and coastal plain of North
Carolina. The Coastal Plain is sub-divided into the Tidewater Area and the Interior portion.
The project area is in the Interior portion of the Coastal Plain. Terrain in the area is gently
sloping, and for the most part, naturally well drained. Elevations on the site range from a
low of approximately 146 feet above mean sea level (MSL) along Swift Creek to a high of
approximately 173 feet above MSL at a high point at the northern end of the runway. The
project area is also located in the Neuse River Basin (HUC 03020201, NCDWQ sub-basin
03-04-02).
The project site is located in the Mica gneiss and Felsic volcanics in the Carolina Slate Belt
of the Coastal Plain physiographic region. The Mica gneiss consists of mica schist and a
wide variety of other gneisses and schists. The Felsic volcanics consist of acidic tuffs,
breccias and flows, with lenses of bedded slate (Horton & Zullo 1991).
The existing land use pattern adjacent to the Airport is agricultural/woodlands with pockets
of residential sites on large lots. The total area within sub-basin 03-04-02 is 726 square
miles. Land area is 724 square miles and water area is 2 square miles. Land use in sub-
basin 03-04-02 is: forest-53 percent; surface water-1 percent; urban-30 percent; cultivated
crop-13 percent; pasture/managed herbaceous-3 percent (NCDWQ 2002).
4.2 Soils
Existing soils mapping in the Soil Survey of Johnston County, North Carolina (USDA 1989)
shows that the JNX property contains numerous soil-mapping units. The soil-mapping units
located within or immediately adjacent to the site are listed in Table 11. Please refer to
Figure 4 for the detailed soils map.
20
•
0
•
Table 11. Detailed Soil Units Within or Adiacent to Johnston County Airport
Soil SMU Soil Type Soil Description
0-2 percent slopes, occasionally flooded, found on stream
AaA Altavista fine sandy loam terraces
1-6 percent slopes, moderately permeable, Appling-found
on ridges and side slopes of the Piedmont uplands;
Appling-Marlboro Marlboro-formed in marine sediments, found on uplands
AmB complex of Coastal Plain
AsA 0-2 percent slopes, occasionally flooded, found on stream
(RSA) Augusta sandy loam terraces
Frequently flooded, found on Piedmont and Coastal Plain
Ch Chewacla loam river valleys
2-6 percent slopes, moderately well drained, found on
CoB Cowarts loamy sand ridge tops and side slopes of the Coastal Plain
0-2 percent slopes, occasionally flooded, found on stream
DoA Dogue fine sandy loam and marine terraces
2-6 percent slopes, well drained, found on level to rolling
FaB Faceville sandy loam uplands of the Coastal Plain
2-8 percent slopes, occur on highly dissected landscapes
in the upper Coastal Plain, occupy remnants of old stable
surfaces, erosional surfaces, and to a lesser extent toe
GeB Gilead sandy loam slopes
8-15 percent slopes, occur on highly dissected landscapes
in the upper Coastal Plain, occupy remnants of old stable
surfaces, erosional surfaces, and to a lesser extent toe
GeD Gilead sandy loam slopes
0-2 percent slopes, moderately well drained, marine
GoA Goldsboro sandy loam terraces and uplands of the lower to upper Coastal Plain
Hydric soil, poorly drained, found on flood plains, low
Le terraces along streams and on broad flats in the Southern
(Corp. Area) Leaf fine sandy loam Coastal Plain
0-2 percent slopes, somewhat poorly drained, found on
marine terraces and flats of the lower to upper Coastal
Ly Lynchburg sandy loam Plain
NnB Nason silt loam 2-8 percent slopes, well drained, found on uplands

NnD Nason silt loam 8-15 percent slopes, well drained, found on uplands

NnE Nason silt loam 15-25 percent slopes, well drained, found on uplands
0-2 percent slopes, well drained, found on uplands or
marine terraces of the lower, middle, or upper Coastal
NoA Norfolk loamy sand Plain
2-6 percent slopes, well drained, found on uplands or
marine terraces of the lower, middle, or upper Coastal
NoB Norfolk loamy sand Plain
0-3 percent slopes, well drained, found on uplands or
Norfolk-Urban land marine terraces of the lower, middle, or upper Coastal
NuA complex Plain
21

•
•
Soil SMU Soil Type Soil Description
0-3 percent slopes, occasionally flooded, found on stream
StA State sandy loam terraces on Piedmont and coastal river valleys
0-2 percent slopes, hydric soil, poorly drained, found in
shallow depressions, around the heads of drainageways,
and on the outer fringe of stream terraces next to the better
Tn Toisnot drained uplands, in the upper Coastal Plain
0-2 percent slopes, rarely flooded, found on terraces in the
To Tomotley sandy loam Coastal Plain
6-12 percent slopes, well drained, found on smooth
UcC Uchee loamy coarse sand ridgetops and dissected side slopes of the Coastal Plain
Ud Udorthents Loamy
W Water
0-4 percent slopes, occasionally flooded, found on stream
Wh Wahee loam and marine terraces
2-8 percent slopes, well drained, found on narrow ridges
WoD Wedowee sandy loam and on side slopes of uplands
0-2 percent slopes, frequently flooded, found on flood
plains along streams that drain from the mountains and
Wt Wehadkee loam piedmont
0-2 percent slopes, frequently flooded, found on flood
Wehadkee-Chastain plains along streams that drain from the mountains and
Ww association piedmont
4.3 Water Resources
Two major cataloging systems are used in North Carolina to identify surface water drainage
areas: one developed by USGS and the other by NCDWQ. The project site is located
within the USGS 8-digit hydrologic unit 03020201. The NCDWQ system places the site in
sub-basin 030402 of the Neuse River Basin. The Stream Index Number (SIN) of Swift Creek
is 27-43-(8). The major tributaries of the Neuse River in this sub-basin include Crabtree
Creek, Walnut Creek, Swift Creek, and Marks Creek (NCDWQ 2002). Figure 5 depicts the
FEMA mapped floodways in the project area.
The JNX property contains Swift Creek and Reedy Branch. Swift Creek flows southeast
along the western and southeastern border of the project study area. Reedy Branch flows
southeast along the northern and eastern border of the project study area.
Swift Creek from Lake Benson to the Neuse River is fully supporting and is being
considered for preservation by the Triangle Land Conservancy (NCDWQ, 2002). Swift
Creek is assigned a Best Usage Classification of C, NSW. Class C waters are freshwater that
are protected for aquatic life propagation and survival, fishing, wildlife, secondary
recreation, and agriculture. The supplemental NSW indicates Nutrient Sensitive Waters
that are subject to growth of microscopic or macroscopic vegetation requiring limitations
on nutrient input.
22
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•
Reedy Branch flows beneath Swift Creek Road then runs along the toe of the slope from the
existing Runway 21 to the confluence with Swift Creek on the southeastern side of the
study area. The channel is dammed several times by beavers, creating frequent ponded
areas. These areas of open water attract waterfowl (a hazard to aircraft). Reedy Branch is
classified as C, NSW (DWQ water quality classification). Although Reedy Branch is not one
of NCDWQ's regular sample sites for bioclassification, it drains into Swift Creek
downstream of the airport. The bioclassification of Swift Creek improved from "Good-Fair"
in 1991 to "Good" in 1995 and 2000.
Water quality is assessed by NCDWQ through several programs, including benthic macro-
invertebrate monitoring, fish community structure, and aquatic toxicity monitoring. One
invertebrate monitoring station was monitored in 2002 along Beech Branch just upstream
from the project site. Currently Swift Creek has a use support rating of 'Good'. NCDWQ
continues to monitor Swift Creek, assessing changes in the invertebrate monitoring that
may be related to land-disturbing activities. Best Management Practices (BMP's) are
recommended for the Swift Creek watershed. As of 2004, there is one known point-source
discharge along Little Creek that flows into Swift Creek upstream of the project study area
and there is a major point-source discharge along Swift Creek downstream of the project
study area (NCDWQ 2004). Little Creek is also 303(d) listed but Swift Creek is not in this
area (NCDWQ 2008). No bio-classifications exist for Reedy Branch; it is not part of the
monitored waters within subbasin 03-04-02.
• 5.0 BIOLOGICAL RESOURCES
5.1 Plant Communities
Distribution and composition of plant communities throughout the project study area
reflect landscape-level variations in topography, soils, hydrology, and past and present land
use practices. When appropriate, the plant community names have been adopted and
modified from the NHP classification system (Schafale and Weakley 1990) and the
descriptions written to reflect local variations within the project study area. Six plant
communities were identified within the project study area: mixed hardwood/pine forest,
disturbed/successional land, bottomland hardwood forest, coastal plain small stream
swamp, agricultural land, and maintained/disturbed lands. Scientific nomenclature typically
follows Radford et. al. (1968).
Mixed Hardwood/Pine Forest -Tree species in this community include red maple (Ater
rubrum), sweetgum (Liquidambar styraciflua), and loblolly pine (Pinus taeda).
Groundcover species consist of common greenbriar (Smilax rotundifolia), giant cane
(Arundinaria gigantea), sweet pepperbush (Clethra alnifolia) and Virginia creeper
(Parthenocissus quinquefolia). This community type contains non-riparian wetlands but is
mostly composed of non-jurisdictional, upland areas.
?J
24
0 0
•
11
Disturbed/Successional Land -The disturbed/successional land within the JNX property
consists of previously disturbed land that has revegetated with young, disturbance-oriented
species. These areas include such species as young loblolly pine, sweetgum, persimmon
(Diospyros virginiana), black cherry (Prunus serotina), Chinese privet (Ligustrum sinesense),
pokeweed (Phytolacca americana), and blackberry (Rubus spp.). These areas are frequently
mowed or cleared by hand to limit hazards to aircraft operations. The
disturbed/successional land is mostly non-jurisdictional uplands but does contain small
areas of non-riparian and riparian wetlands. Both the RSA and Corporate wetland impacts
are in areas of disturbed/successional wetlands.
Bottomland Hardwood Forest -This plant community is located on relatively high parts of
the floodplain associated with Swift Creek. Dominant tree and shrub species include red
maple, sweetgum, green ash (Fraxinus pennsylvanica), water oak (Quercus nigra), and tulip
poplar (Liriodendron tulipifera). Groundcover species consist of netted chain fern
(Woodwardia areolata), touch-me-not (Impatiens capensis), cinnamon fern (Osmunda
cinnamomea) and common greenbriar. The Bottomland Hardwood forest community is
mostly non-jurisdictional upland. However, vernal pool wetlands and beaver
impoundments are present.
Coastal Plain Small Stream Swamp - The coastal plain small stream swamp communities
on the JNX property are located within the active floodplain of small first and second order
streams such as Reedy Branch and Huckleberry Branch. These communities flood on an
irregular basis and most plant life is adapted to seasonal flooding and extended periods of
soil saturation. Dominant vegetation includes red maple, ironwood (Carpinus caroliniana),
water oak, green ash, tulip poplar, and bald cypress (Taxodium distichum). Herbaceous
species include giant cane (Arundinaria gigantea), touch-me-not, and lizard tail.
Agricultural Land - Existing agricultural land is present on airport property south of Swift
Creek along Ogburn Road. These areas are located high in the landscape and are non-
jurisdictional uplands.
Maintained/Disturbed Land -These areas result from previous human disturbances and
include areas subject to periodic mowing and other maintenance activities. The existing
road shoulders, easements, and mowed areas around the airfield are included in this
habitat type. Species documented in the disturbed/maintained areas include Japanese
honeysuckle (Lonicera japonica), blackberry, lespedeza (Lespedeza spp.), and broomsedge
(Andropogon virginicus). Various managed turf grasses are also present in this community
type. These areas are non-jurisdictional uplands.
5.2 Wildlife
The location of the project site is in a generally rural/suburban setting with agriculture and
single-family homes and farms scattered throughout, on the west side of Smithfield. The
are is experiencing suburban/commercial, and industrial development and habitats are
rapidly becoming more fragmented. Wildlife occurring in the project study area will
typically be those species that are adapted to fragmented landscapes. Impacts to wildlife
will likely be temporary displacement. However, the vast majority of undeveloped land on
the JNX property will be unaffected by the proposed project.
26

Terrestrial Wildlife
Common mammals known or expected to occur on-site include: white-tailed deer
(Odocoileus virginianus), grey fox (Urocyon cinereoargenteus), Eastern chipmunk (Tamias
striatus), raccoon (Procyon lotor), eastern cottontail (Sylvilagus floridanus), opossum
(Didelphis virginiana), and grey squirrel (Sciurus carolinensis).
Avian species observed or expected to occur on-site include species commonly occurring
in forested and disturbed areas of the region. These species include: common crow
(Corvus brachyrhynchos), turkey vulture (Cathartes aura), red-shouldered hawk (Buteo
lineatus), red-tailed hawk (Buteo jamaicensis), American kestral (Falco sparverius), eastern
screech owl (Otus asio), great horned owl (Bubo virginianus), downy woodpecker (Picoides
pubescens), bobwhite quail (Colinus virginianus), wild turkey (Meleagris gallopavo),
mourning dove (Zenaida macroura), pileated woodpecker (Dryocopus pileatus), blue jay
(Cyanocitta cristata), carolina chickadee (Parus carolinensis), tufted titmouse (Baeolophus
bicolor), American robin (Turdus migratorius), northern cardinal (Cardinalis cardinalis),
hooded warbler (Wilsonia citrina) and field sparrow (Spizella pusilla).
Reptilian species known or expected to occur on-site include: eastern box turtle (Terrapene
carolina carolina), green anole (Anolis carolinensis), fence lizard (Sceloporus undulates),
six lined racerunner (Cnemidophorus sexlineatus), five-lined skink (Eumeces fasciatus),
ground skink (Scincella lateralis), eastern garder snake (Thamnophis sirtalis sirtalis),
southern ringneck snake (Diadophis punctatus), eastern worm snake (Carphophis amoenus
amoenus), and northern black racer (Coluber constrictor constrictor).
Aquatic Wildlife
Aquatic avian species observed or expected to occur on-site include the belted kingfisher
(Ceryle alcyon), great egret (Ardea alba), blue heron (Ardea herodias), wood duck (Aix
sponsa), and mallard (Anas platyrhynchos).
Amphibian species observed or expected to occur on site include species commonly
occurring in small streams, ponds, and wet forests. These species include: oak toad (Bufo
quercicus), fowler's toad (Bufo woodhousii fowleri), marbled salamander (Ambystoma
opacum), two-lined salamander (Eurycea cirrigera), two-toed amphiuma (Amphiuma
means), and red-spotted newt (Notophthalmus viridescens viridescens).
Common freshwater fish species known or expected to occur onsite include species
commonly occurring in creeks, small streams, ponds and impoundments. These species
include: bluegill (Lepomis macrochirus), eastern silvery minnow (Hybognathus regius),
brown bullhead (Ameiurus nebulosus), pirate perch (Aphredoderus sayanus), yellow perch
(Perca flavescens), warmouth (Lepomis gulosus), largemouth bass (Micropterus salmoides),
and sawcheek darter (Etheostoma serrifer).
Wildlife Hazard Assessment
The US Department of Agriculture conducted an assessment of potential wildlife hazards at
JNX. Results of the assessment were included in the EA. FAA Advisory Circular Number
150/5200-33 recommends that any land uses that are incompatible with safe airport
operations including wetlands be located a minimum of 10,000 feet from an airport.
Wetland and stream areas at JNX are within hundreds of feet from the airport runway.
During the USDA assessment wood ducks were sited on airport property. Wood ducks
27

along with other birds of prey, waterfowl, and other species pose a significant threat to the
safe operation of aircraft while aircraft are in the air or maneuvering on the ground.
Reduction in the amount of close-proximity wetlands resulting from the proposed project
will increase the benefit safety of the airport and aircraft passengers.
6.0 CULTURAL RESOURCES
The term "cultural resources" refers to prehistoric or historic archaeological sites, structures,
or artifact deposits over 50 years old. "Significant" cultural resources are those sites that are
eligible or potentially eligible for inclusion in the National Register of Historic Places.
Evaluations for cultural resources are required whenever a Section 404 permit application
is submitted to USACE. Evaluations of site significance are made with reference to the
eligibility criteria of the National Register (33 CFR 60) and in consultation with the North
Carolina State Historic Preservation Officer (SHPO).
Previous surveys by AF Consultants indicated that there are no sites or potential
archaeological/historic sites in the area of the construction of the ERSA, or borrow area.
Follow-up telephone conversations with Dr. Leslie Drucker, AF Consultants (who
performed the surveys) and with Deloris Hall, DENR, Department of Archives and History,
indicate that the propensity for historic/archaeological sites in the area of the proposed
Corporate area is very low since the site is almost all hydric soils and potential sites were
not located in areas of hydric soils in earlier surveys. Potential sites in non-hydric soil areas
were later determined to be not significant.
There are no structures, historic or otherwise, to be impacted from these proposed projects.
7.0 JURISDICTIONAL ISSUES
7.1 Jurisdictional Wetlands
Section 404 of the Clean Water Act (CWA) requires regulation of discharges into "waters of
the United States." Although the principal administrative agency of the CWA is the
Environmental Protection Agency (EPA), the USACE has major responsibility for
implementation, permitting, and enforcement of provisions of the Act. The USACE
regulatory program is defined in 33 CFR 320-330.
Water bodies such as rivers, lakes and streams are subject to jurisdictional consideration
under the Section 404 program. However, by regulation, wetlands are also considered
"waters of the United States." Wetlands are defined as:
Those areas that are inundated or saturated by groundwater at a frequency
and duration sufficient to support, and that under normal circumstances do
support, a prevalence of vegetation typically adapted for life in saturated soil
conditions. Wetlands generally include swamps, marshes, bogs and similar
areas. [33 CFR 328.3(b) (1986)]
The USACE requires the presence of three parameters (hydrophytic vegetation, hydric soils,
• and evidence of jurisdictional hydrology) in support of a jurisdictional determination.
28
•
The Applicant obtained a Jurisdictional Determination in April 2001. That JD depicted
only wetlands north of Swift Creek and it expired in 2006. During pre-application agency
meetings in 2005 the USACE requested the wetlands be re-delineated east of the runway to
more accurately reflect existing conditions. During this delineation the wetlands on the
airport property south of Swift Creek were also delineated and all jurisdictional areas from
the 2001 JD were verified. The 2005 delineation was reviewed by James Shern of the
USACE on 25 January 2006. A subsequent re-delineation of the Corporate Area was
requested by Thomas Brown of the USACE during a pre-application meeting in May 2008.
This delineation was reviewed on 22 July 2008 by Thomas Brown. Martin Richmond of
NCDWQ was also present to verify the extent of streams subject to Neuse Buffer Rules.
USACE data forms and Jurisdictional Determination (Rapanos) forms are submitted with the
JD Request in Appendix A. The revised wetland lines have been surveyed and a wetland
plat is included in Appendix A.
Wetland boundaries were delineated using current methodology outlined in the 1987
Army Corps of Engineers Wetland Delineation Manual (DOA 1987) and marked with
sequentially numbered wetland survey tape (pink/black striped). Flagging was tied to
vegetation in a manner so as to make it as permanent as possible to facilitate follow-up
surveys as required prior to construction. Flag locations were surveyed under the direction
of a PLS with GPS and conventional survey.
Figure 6 depicts the National Wetlands Inventory map and Figure 7 depicts the
jurisdictional wetlands and surface waters occurring in the project study area at a smaller
scale than the maps provided in Appendix A.
The majority of the jurisdictional wetlands within the boundaries of JNX can be
characterized as riparian wetlands. The most significant riparian areas occurring on the
JNX site are those associated with Swift Creek and Reedy Branch. These are the two
primary surface water systems that traverse the property. Riparian areas, including
wetlands, are transitional between terrestrial and aquatic ecosystems and are distinguished
by gradients in biophysical conditions, ecological processes, and biota. They are areas
through which surface and subsurface hydrology connect water bodies with the adjacent
uplands. They include portions or terrestrial ecosystems that influence exchanges of energy
and matter with aquatic ecosystems (National Research Council 2002). Riparian areas are
adjacent to perennial, intermittent, and ephemeral streams and lakes. Because riparian
areas occupy a gradient in the landscape, they can include both wetland and upland
habitat. It is this gradient and the diverse biogeochemical processes that occur in riparian
areas that make them so important to the overall health of aquatic ecosystems. Riparian
areas also serve as a filter between developed uplands and low-lying floodplains and
swamps, thus reducing the amount of pollutants and contamination entering surface waters.
Wetland habitat types existing on the JNX property based on Cowardin et al. (1979) consist
of the following: palustrine forested broad-leaved deciduous seasonally flooded/saturated
(PF01C/E), palustrine shrub-scrub broad-leaved deciduous seasonally flooded/saturated
(PSS1C/E), and palustrine emergent persistent semi permanently flooded (PEM1 F).
Palustrine systems are defined by Cowardin et al. (1979) as all non-tidal wetlands
dominated by trees, shrubs, persistent emergents, emergent mosses or lichens, and all such
29
•
•
.;,
�t
F'O BARBOUR RD
nrq'
0/ti N
o
WATERSHED SCIENCES
WI
NWI Codes
PEM1 C — Palustine Emergent Broad -Leaved Deciduous Seasonally Flooded
r PF01A— Palustine Forested Broad -Leaved Deciduous Temporarily Flooded
JPFO1 C — Palustine Forested Broad -Leaved Deciduous Seasonally Flooded
` PSS1A- Palustine Scrub -Shrub Broad -Leaved Deciduous Temporarily Flooded
PSS1Fh - Palustine Scrub -Shrub Broad -Leaved Deciduous Semipermanently Flooded Diked/Impounded
PUBHh - Palustine Unconsolidated Bottom Permanently Flooded Diked/Impounded
9 PUBHx — Palustine Unconsolidated Bottom Permanently Flooded Excavated
Photos.
Johnston County GIS; 2005 Aerial
Figure 6.
Johnston County Airport
NWI Wetlands Map
Johnston County, NC
0 500 1,000 2,000
Feet
1 inch equals 1,000 feet
Legend
Johnston County Airport
Property Boundary
Streams
Roads
NWI Wetlands
Limits of Disturbance
Proposed Box Culvert System

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so;o4d Ielaay
o0z,L 009 00C 0 S33N313S 43HSd31b'M
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deW sn ayi jo saaieM r
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•
wetlands that occur in tidal areas where the salinity due to ocean-derived salts is below 0.5
parts per thousand.
During the field investigation and delineation; the PFO and PSS wetlands were also
classified as either riparian or non-riparian based on their position in the landscape.
Adjacent streams, through periodic overbank flooding, influence the hydrology of riparian
wetlands. Overbank flooding does not typically influence the hydrology of non-riparian
wetlands. Proposed wetland impacts described in Section 8.0 are divided into riparian and
non-riparian impacts.
7.2 Isolated Wetlands
There are no isolated wetlands on the JNX property. Several small wetland areas lack a
surface connection to other waters of the US but are located on the Swift Creek or Reedy
Branch floodplain and are subject to overbank flooding. W17, in the proposed Corporate
Area, is connected to other waters of the US through a drainage network beneath the
taxiway and runway.
7.3 Streams
On-site stream channels consist of Swift Creek and Reedy Branch. Other ditches and
drainageways were investigated and lacked consistent intermittent or perennial flow and or
a clearly defined channel. Appendix A contains a waters of the US plat that clearly
identifies the streams. Reedy Branch is frequently inundated with backwater from beaver
dams and lacks a clearly defined channel throughout much of the JNX property. Swift
Creek is a large stream system with clearly defined geomorphic features and habitat
diversity. Several low beaver dams were present in the project area during site
investigations. In the vicinity of the RSA a topographic survey was conducted to determine
the top of bank locations. On the east side of the JNX property the Reedy Branch location
is based upon GIS data and the property line.
7.4 Riparian Buffers
The project study area is within the Neuse River Drainage Basin and jurisdictional surface
waters are subject to the Neuse River Riparian Buffer Rule (Rule). The Rule applies to a 50-
ft wide riparian buffer directly adjacent to surface waters in the Neuse River Drainage
Basin. This includes intermittent streams, perennial streams, lakes, ponds, and estuaries
that are depicted on either the most recent version of USGS topographic maps or county
soil survey maps, but does not include jurisdictional wetlands (non-surface waters)
regulated under Section 404 of the Clean Water Act. Swift Creek and Reedy Branch are
subject to the Rule. A blue-line channel is depicted on the USGS quadrangle in the
proposed Corporate Area. An onsite meeting with Martin Richmond of NCDWQ on 22
July 2008 confirmed that this channel did not convey intermittent or perennial flow and
was not subject to the Rule. Riparian buffer impacts are described in Section 8.0.
8.0 JURISDICTIONAL IMPACTS
In accordance with provisions of Section 404 of the CWA (33 U.S.C. 1344), a permit will
be required from the USACE for the discharge of dredged or fill material into "Waters of the
IS United States." Section 401 of the CWA (33 U.S.C. 1341) requires each state to certify that
state water quality standards will not be violated for activities which: 1) involve issuance of
a federal permit or license; or 2) require discharges to "waters of the United States." The
use of a Section 404 permit requires the prior issuance of the 401 certification. Therefore,
32
UA
the applicant must also apply to NCDWQ for 401 certification. This process is typically
handled as a joint permit application to both the USACE, and NCDWQ. Table 12 details
the jurisdictional impacts.
Table 12. lurisdictional Impacts Summarv
Site Feature Excavation Fill Total
RSA Riparian Wetland (acres) 0.18 8.66 8.84
Corp. Area Non-Riparian Wetland (acres) None 10.31 10.31
RSA Stream (linear feet) None 779 779
RSA Buffer Zone 1 (square feet) 711 47,756 48,467
RSA Buffer Zone 2 (square feet) 160 30,499 30,659
8.1 Wetland Impacts
The project will entail unavoidable impacts to riparian and non-riparian wetlands. Riparian
wetland impacts will result from construction of the RSA (8.84 acres) over Reedy Branch
and its floodplain. Non-riparian wetland impacts will result from construction of the
Corporate Area (10.31 acres) in a disjunct disturbed wetland. The types of wetland impacts
consist of clearing, filling, and excavation. Appendix B provides the detailed construction
plans.
8.2 Stream Impacts
The project will also entail unavoidable impacts to a perennial stream channel.
Construction of the RSA will impact 779 linear feet of Reedy Branch. Stream impacts will
result from placing Reedy Branch in a culvert to allow the RSA to extend 1,000 feet from
the end of the runway. Appendix B provides the detailed construction plans. The base
flow will be conveyed in a central box culvert buried approximately one foot and lower
than the two adjacent box culverts. The two adjacent box culverts will convey storm flows
only.
8.3 Riparian Buffer Impacts
The existence and extent of buffered streams were established from the 1:24,000 USGS
topographic map, the most recent version of the NRCS Soil Survey, and a field visit
conducted by Martin Richmond of NCDWQ's Raleigh Regional Office (Appendix Q. The
only buffered channel in the impact area is Reedy Branch. Construction of the RSA will
result in impacts to 48,467 square feet of Zone 1 (first 30 feet) and 30,659 square feet of
Zone 2 (outer 20 feet). Impacts to riparian buffers from RSA construction are permitted by
a NC Environmental Management Commission (NCEMC) General Major Variance (GMV)
for expansions of and improvements to airport facilities.
9.0 MITIGATION
Mitigation includes: a) avoidance; b) minimization; and c) compensation for unavoidable
impacts. Mitigation of wetland impacts is recommended in accordance with Section
404(b)(1) Guidelines of the CWA (40 CFR 230), FHWA step-down procedures (23 CFR
777.1 et seq.), mitigation policy mandates articulated in the USACE/EPA Memorandum of
Agreement (MOA), Executive Order 11990 (42 FR 26961) (1977), and USFWS mitigation
policy directives (46 FR 7644-7663) (1981).
Section 404(b)(1) Guidelines, the USACE/EPA MOA, and Executive Order 11990, stress
avoidance and minimization as primary considerations for protection of wetlands.
33

Practicable alternatives analysis must be fully evaluated before compensatory mitigation
can be discussed. USFWS policy also emphasizes avoidance and minimization. However,
for unavoidable losses, the USFWS recommends that mitigation efforts be based on the
value and scarcity of the habitat at risk.
9.1 Mitigation Procedure
All alternatives RSA and Corporate Area alternatives include impacts to wetlands and
streams. These wetlands and streams are part of the Neuse River Basin of eastern North
Carolina, and is an important watershed for the region. Mitigation of these impacts
comprises the primary environmental concern regarding the project. Prior to compensatory
mitigation impacts must be avoided and minimized.
Avoidance -Significant jurisdictional streams and wetland areas are present within the
project area. During the planning and design phase of the project, efforts were made to
avoid impacts to the greatest extent practicable. It was not be possible to avoid all impacts
to jurisdictional areas, due to design constraints. The Applicant has gone to great lengths to
avoid wetland, stream, and buffer impacts where practicable. Certain unavoidable impacts
are necessary to fulfill the applicant's purpose and need.
Minimization - The Applicant minimized impacts to wetlands, streams, and buffers in the
design phase. The RSA and Corporate Area must meet FAA criteria. Minimization efforts
include, using maximum allowable fill slopes, minimizing the Corporate Area pavement to
protect 0.5 acres of wetland, burying the RSA culvert and lowering one box to concentrate
base flow, and implementing stormwater controls to minimize secondary impacts to water
quality.
Following avoidance and minimization, compensatory mitigation for unavoidable wetlands
and stream impacts can be accomplished via several methods, including:
• On-Site Mitigation
• Preservation of existing wetlands and/or streams
• Restoration or enhancement of wetlands and/or streams
• Creation of wetlands
• Off-Site Mitigation
• Preservation of existing wetlands and/or streams
• Restoration or enhancement of wetlands and/or streams in HUC
• Purchase of credits from approved Mitigation Bank and/or NCEEP in
HUC
The Federal Aviation Administration has discouraged on-site mitigation, in the form of areas
that hold water such as retention and detention ponds and wetlands, due to concerns
regarding potential wildlife hazards to aircraft operations on or near airfield areas (e.g., bird
strikes) and future need for development of additional airport facilities that may impinge on
on-site mitigation areas. As part of the 2003 EA, the Applicant engaged an environmental
sub-consultant (L.S. Jernigan, Jr., PhD) to identify potential mitigation sites suitable for site
specific mitigation in the 03020201 HUC. Dr. Jernigan was "unable to identify any
potential successful sites" for "in-kind and out-of-kind mitigation", and recommended that
"the project's best approach is to utilize the WRP (NCEEP) for mitigation efforts".
34

9.2 Compensatory Mitigation Plan
The Applicant is proposing to mitigate for impacts to streams and wetlands at a 2:1 ratio.
Buffer mitigation will be at a 3:1 ratio in Zone 1 and 1.5:1 ratio in Zone 2. Mitigation is
proposed for the following impacts:
• 8.84 acres of riparian wetland (17.7 WMUs)
• 10.31 acres of non-riparian wetland (20.62 WMUs)
• 779 feet of perennial stream channel (1,558 SMUs)
• 48,467 square feet of Zone 1 buffer (145,401 BMUs)
• 30,659 square feet of Zone 2 buffer (45,989 BMUs)
Mitigation can be accomplished through on-site, project-specific off-site, NCEEP fee-in-lieu
payment, or payment to an approved mitigation bank. On-site mitigation is not preferred to
satisfy FAA guidance on waterfowl attractants. No on-site mitigation is proposed for the
impacts. The Applicant conducted a mitigation site search as part of the EA process and no
suitable sites were found in the vicinity of the airport. No project-specific offsite mitigation
is proposed.
The NCEEP accepted the project for its fee-in-lieu mitigation program on 8 April 2008. This
acceptance expired on 8 October 2008. Prior to that acceptance expiration mitigation
policy in NC General Assembly Law 2008-152 was passed which significantly changed
mitigation policy in NC. NCDWQ implementation of 2008-152 mandates that where
available stream and wetland mitigation must be accomplished through use of an approved
mitigation bank in the same eight-digit HUC as the impacts or by the applicant (offsite or
on-site). At the time of this application four approved mitigation banks exist in HUC
03020201. The Applicant proposes to satisfy all mitigation requirements through purchase
of mitigation credits from an approved private mitigation provider(s) or, if necessary, from
the NCEEP fee-in-lieu program (or a combination of both private banks and NCEEP). The
availability of credits from specific mitigation providers has not yet been established. The
Applicant will solicit quotes from approved mitigation providers and purchase credits prior
to construction activities.
9.3 Additional Mitigation Activities
Storm-Water Management
In accordance with the Neuse River Nutrient Sensitive Waters Management Strategy post-
construction stormwater BMPs will control peak flows (quantity) and treat run-off for
nutrient control (quality). Nutrient removal targets of 85 percent of total suspended solids
(TSS) and 4lbs/acre/year of Nitrogen (N) will be met through BMPs that include dry
detention basins and engineered grass swales. Appendix E contains a stormwater
management plan.
Sedimentation Control
The RSA and Corporate Area project will require an sediment control permit from NCDLQ.
The Applicant will install and maintain all erosion control measures needed to minimize or
. eliminate sediment from reaching Reedy Branch and Swift Creek. Additionally the
proposed borrow area for the project is located on Airport property. Strict erosion control
measures will be incorporated at the borrow area to prevent sediment from entering
wetland and stream systems.
35
1?1
Erosion control measures will include: double rows of silt fencing, sediment pond with
baffles and skimmer, rack and filter fabric inlet protection, gravel construction entrances,
rock check dams, temporary seeding, and permanent seeding. Proper controls and
mitigation measures will avoid impacts to water quality during construction. During
construction, water pollution control will take place in accordance with FAA AC 150/5370-
10A, Standards for Specifying Construction of Airports, North Carolina statues, local
requirements, and any requirements associated with construction in the Neuse River Basin.
Additionally, the North Carolina Wildlife Resources Commission has developed Best
Management Practices (BMP) measures to address Cumulative and Secondary Impacts (CSI)
associated with projects and to mitigate impacts to fish and wildlife both generally and
where Federally Endangered species exist.
The Engineer will be responsible for assuring compliance to the extent that construction
practices, construction operations, and construction work is involved. Temporary control
measures will be developed and shown on the construction plans. Control measures will
be implemented as depicted, or modified as site conditions dictate, as ordered by the
Engineer during the life of the construction contract to control water pollution, soil erosion,
and siltation. As long as proper erosion control measures are designed, installed, and
maintained, no long-term adverse effects should be present as a result of this project.
10.0 PROTECTED SPECIES
The Endangered Species Act requires each federal agency to ensure that any action by that
agency is not likely to jeopardize the continued existence of any threatened or endangered
species, or destroy, or adversely modify critical habitat for those species.
10.1 Federal Threatened and Endangered Species
Species with the federal classification of Endangered (E), Threatened (T), or officially
Proposed (P) for such listing, receive protection under the Endangered Species Act of 1973
(16 US 1531 et seq.) as amended. The most recent list prepared by the USFWS indicates
that four endangered species have ranges considered to extend into Johnston County.
Table 13 lists these four species. Records held by the North Carolina Natural Heritage
Program (NHP) were reviewed by WK Dickson in May 2008 to determine if any federal
protected species have been documented from the project study area or the surrounding
vicinity.
Table 13. Federal Protected SnPriPC fnr lnhnctnn (-minty North ('nrnlin?
•
Common Name Scientific Name Federal Status Habitat Biological
Present Conclusion
Red-cockaded
woodpecker Picoides borealis Endangered No No Effect
Dwarf Alasmidonta
wedgemussel heterodon Endangered Yes No Effect
Tar River
spinymussel Elliptio steinstansana Endangered Yes No Effect
Michaux's sumac Rhus michauxii Endangered Yes No Effect
36

Investigations were completed in 1989 at the Johnston County Airport prior to the
construction of the runway extension to determine if any endangered/threatened species or
critical habitat were present and likely to be affected by the further construction of the
airport.
As a result of the investigations, the only species which has a propensity for occurring in
the area is the Dwarf Wedge Mussel (Alasmondonta Hereodon). The mussel has been
reported in the Neuse and Pamlico River systems (Swift Creek empties into the Neuse
River). Evidence of these species, in light of the proposed projects that may affect Swift
Creek, was cause for a further survey of Swift Creek on March 27, 1991, by Mr. John
Alderman, staff biologist for the North Carolina Wildlife Resources Commission. This field
survey found that the Dwarf Wedge Mussel, as well as other related species, were located
in the vicinity of the S.R.1501 Bridge Crossing.
An additional reconnaissance survey was performed of the Swift Creek habitat in the airport
project area. Results of that survey revealed that an abundance of Dwarf Wedge Mussel
habitats exist.
In 2002, Mr. John Alderman was contacted again. It was Mr. Alderman's opinion that
performing another costly survey for the Dwarf Wedge Mussel should not be necessary. He
confirmed that populations of the species still existed in the Swift Creek area. He suggested
that any Federal and State guidelines would need to be followed to prevent any potential
harmful effects of erosion and sedimentation during construction.
In keeping with these findings, all construction efforts for the proposed projects will be
designed to produce zero sediment/siltation into Swift Creek. DENR, and other State and
Local regulatory agencies, prior to implementation will approve control methods.
Additionally, The NCWRC has developed a set of criteria that could be followed to address
and mitigate the secondary and cumulative impacts of projects in the area near endangered
or threatened fresh water species.
10.2 Biological Conclusions
RED-COCKADED WOODPECKER
The red-cockaded woodpecker (RCW) is 7 to 8.5 inches long, has a black head, prominent
white cheek patch, and a black-and-white barred back. Males often have red markings
(cockades) behind the eye, but the cockades may be absent or difficult to see (Potter et al.
1980). Primary habitat consists of mature to over-mature southern pine forests dominated
by loblolly, long-leaf (P. palustris), slash (P. elliotii), and pond (P. serotina) pines (Henry
1989). Primary nest sites for RCWs include open pine stands greater than 60 years of age
with little or no mid-story development. Nest cavity trees tend to occur in clusters, which
are referred to as colonies (USFWS 2003). Optimal foraging habitat is comprised of open
pine stands with large pines 60 years old or greater, low densities of small or medium
pines, sparse or no hardwood midstory, and various species of bunchgrass for groundcover
(USFWS 2003). However, open pine or pine/mixed hardwood stands over 30 years of age
are considered potential foraging habitat (Henry 1989). Pine flatwoods or pine-dominated
savannas, which have been maintained by frequent natural fires, serve as ideal nesting and
foraging sites for this woodpecker. Development of a thick understory may result in
abandonment of cavity trees. The woodpecker drills holes into the bark around the cavity
37
•
entrance, resulting in a shiny, resinous buildup around the entrance that allows for easy
detection of active nest trees (Henry 1989).
A review of NHP records revealed one (1) red-cockaded woodpecker element occurrence
(EO) that was last observed in January 1997. The location of this EO is on the east side of
Smithfield along US-70. No suitable RCW habitat is found on the Airport property. As a
result no effect to RCW is anticipated from the proposed project.
BIOLOGICAL CONCLUSION: NO EFFECT
DWARF WEDGEMUSSEL
The dwarf wedgemussel (DWM) rarely exceeds 1.5 in (3.8 cm) in length. The outer shell is
brown or yellowish brown with faint green rays, and the nacre is bluish or silvery white.
The shells of the females are somewhat wider than those of males. This species typically
inhabits streams with moderate flow velocities and substrates varying in texture from gravel
and coarse sand to mud with little silt deposition (USFWS 1993). It is generally found in
association with other mussels but is never very numerous. As with other mussel species,
the DWM has suffered from excess siltation in streams and rivers and from the toxic effects
of various pollutants entering waterways.
The proposed RSA includes a stream impact of 779 linear feet on Reedy Branch. Reedy
Branch in the vicinity of the Airport is a series of beaver impoundments with few free
flowing segments. No suitable habitat exists for DWM in the impounded channel.
Coordination with USFWS (Appendix C) confirms that Reedy Branch in not suitable DWM
habitat. Therefore, no effect to this species is anticipated as a result of the proposed
project.
Swift Creek in the vicinity of the Airport has a known DWM population. Reedy Branch is a
tributary to Swift Creek approximately 1.5 miles downstream of the RSA. Adherence to
strict erosion control measures as well as post construction stormwater BMPs will ensure
that no impacts to water quality in Swift Creek will occur.
BIOLOGICAL CONCLUSION: NO EFFECT
TAR RIVER SPINYMUSSEL
The Tar spinymussel (TRSM), one of only three freshwater mussels in the world with spines,
is a medium-sized mussel reaching about 2.5 inches in length. In young specimens, the
shell's outer surface (periostracum) is an orange-brown color with greenish rays; adults are
darker with inconspicuous rays. The inside of the shell (nacre) is yellow or pinkish at one
end and bluish-white at the other. Juveniles may have as many as 12 spines; however, adult
specimens tend to lose their spines as they mature. The TRSM lives in relatively silt-free
uncompacted gravel and/or coarse sand in fast-flowing, well oxygenated stream reaches. It
is found in association with other mussels, but it is never very numerous. It feeds by
syphoning and filtering small food particles that are suspended in the water.
The proposed RSA includes a stream impact of 779 linear feet on Reedy Branch. Reedy
Branch in the vicinity of the Airport is a series of beaver impoundments with few free
flowing segments. No suitable habitat exists for TRSM in the impounded channel.
Therefore, no effect to this species is anticipated as a result of the proposed project.
Swift Creek in the vicinity of the Airport may be considered TRSM habitat. Reedy Branch is
a tributary to Swift Creek approximately 1.5 miles downstream of the RSA. Adherence to
38

strict erosion control measures as well as post construction stormwater BMPs will ensure
that no impacts to water quality in Swift Creek will occur.
BIOLOGICAL CONCLUSION: NO EFFECT
MICHAUX'S SUMAC
Michaux's sumac is a rhizomatous, densely hairy shrub, with erect stems from 1 to 3 feet in
height. The compound leaves contain evenly serrated, oblong to lanceolate, acuminate
leaflets. Most plants are unisexual; however, more recent observations have revealed plants
with both male and female flowers on one plant. The flowers are small, borne in a
terminal, erect, dense cluster, and colored greenish yellow to white. Flowering usually
occurs from June to July; while the fruit, a red drupe, is produced through the months of
August to October. Michaux's sumac grows in sandy or rocky open woods in association
with basic soils. Apparently, this plant survives best in areas where some form of
disturbance has provided an open area. At least twelve of the plant's populations in North
Carolina are on highway rights-of way, roadsides, or on the edges of artificially maintained
clearings. Two other populations are in areas with periodic fires, and two populations exist
on sites undergoing natural succession. One population is situated in a natural opening on
the rim of a Carolina bay.
A survey for Michaux's sumac was performed by WK Dickson in 2008. No individuals
were observed in disturbed areas on the Airport property. Specifically the RSA and
Corporate Area were investigated and no suitable habitat was found.
BIOLOGICAL CONCLUSION: NO EFFECT
10.3 Federal Species of Concern
The USFWS list also includes a category of species designated as "Federal Species of
Concern" (FSC). The FSC designation provides no federal protection under the ESA for the
species listed. However, these species are listed because they may attain federally
protected status in the future. The presence of potential habitat within the project study
area has been evaluated in Table 14 for the FSC species listed for Johnston County. No
surveys for FSC species have been conducted. In the course of other field investigations no
FSC species have been observed.
Table 14. Federal Species of Concern for lohnston Countv. North Carolina

Common Name Scientific Name State
Designation Potential
Habitat
American eel Anguilla rostrata YES
Pinewoods shiner Lythrurus matutinus SR YES
"Carolina" madtom Noturus furiosus SR (PT) YES
Cerulean warbler Dendroica cerulea SR YES
Roanoke bass Ambloplites cavifrons YES
Yellow lance Elliptio lanceolata E YES
Atlantic pigtoe Fusconaia masoni E YES
Yellow lampmussel Lampsilis cariosa E YES
Green floater Lasmigona subviridis E YES
Bog spicebush Lindera subcoriacea T YES
Carolina bogm i nt Macbridea caroliniana T YES
Spring-flowering goldenrod Solidago verna T YES
Carolina least trillium Trillium pusillum var. pusillum E NO
39
•
11.0 ENVIRONMENTAL AND PUBLIC INTEREST FACTORS
11.1 Physical/Chemical Characteristics and Anticipated Changes
Substrate -Earthmoving will occur on the site; however, no significant changes to the
general substrate are anticipated other than what is necessary for construction.
Currents, Circulation, or Drainage Patterns - Wetland and stream impacts are proposed;
however, no changes to the overall drainage of the site are anticipated. Stormwater BMPs
will treat both quantity and quality of run-off.
Suspended Particulates and Turbidity - The Erosion and Sedimentation Control Plan will
be strictly enforced to maintain state water quality standards during construction.
Water Quality - Overall water quality on the site is not expected to change significantly as
a result of the new construction. Stormwater BMPs will treat both quantity and quality of
run-off.
Flood Control Functions -Alterations to the site will not affect flood control functions.
Storm, Wave and Erosion Buffers - Not Applicable
• Aquifer Recharge - The project will not have an effect on aquifer recharge.
Baseflow - The project will not have an effect on baseflow.
11.2 Biological Characteristics and Anticipated Changes
Special Aquatic Sites - Certain unavoidable impacts to wetlands and streams will result
from this project; however, impacts have been minimized as much as practicable.
Habitat for Fish and Other Aquatic Organisms - No significant habitat degradation is
anticipated as a result of the project.
Wildlife Habitat - No significant habitat degradation is anticipated as a result of the project.
Fragmentation will occur in the Reedy Branch floodplain; however, those species occurring
on the site are adaptable to fragmented landscapes. The selected Corporate Area
alternative minimizes habitat fragmentation by utilizing a disturbed disjunct area.
Endangered or Threatened Species - Due to a lack of suitable habitat in the project area,
no impacts to federally protected species are anticipated from the proposed project. The
USFWS has concurred with this assessment.
11.3 Human Use Characteristics and Impacts
• Existing and Potential Water Supplies - The project will have no effect of existing or
potential water supplies.
Recreational or Commercial Fisheries - No effect.
40

Other Water Related Recreation - No effect.
Aesthetics of Aquatic Ecosystem - No effect. The Reedy Branch floodplain in the vicinity
of the RSA is currently maintained in an unnatural herbaceous/shrub condition for aircraft
safety.
Parks, National and Historic Properties, etc. - No effect.
Traffic/Transportation Patterns - No effect.
Energy Consumption/Generation - No effect.
Navigation - No effect.
Safety - No effect.
Air Quality - No effect.
Noise - No effect.
Historic Properties - No effect.
• Land Use Classification - No effect.
Economics - The project will facilitate existing and future economic development in
Johnston County and the Smithfield area.
Property Values - Unknown.
Regional Growth - The project is not intended as a driver of regional growth.
Tax Revenues - No effect.
Employment - No effect.
Public Facilities - Not applicable.
Business Activity - The project is intended to facilitate business activity in Johnston County
and satisfy FAA regulations.
Prime and Unique Farmland - No effect.
Food and Fiber Production - No effect.
• Water Quantity - No effect.
Mineral Needs - No effect.
41
•
Consideration of Private Property - No effect.
Community Cohesion - No effect.
Community Growth and Development - The project will facilitate future development in
Johnston County.
Relocations - None.
Recreation - Not applicable.
11.4 Secondary and Cumulative Impacts
No significant secondary and cumulative impact possibilities associated with this project
have been identified. The JNX project is intended to facilitate existing economic
development and aviation needs. The project is not intended to be a driver of new
development. Downstream water quality is not expected to be negatively impacted due to
strict sediment and erosion control measures and post-construction stormwater BMPs that
will treat water quality as well as control water quantity.
12.0 CONCLUSION
The RSA and Corporate Area project has been designed to minimize wetland and stream
impacts while still satisfying the applicant's purpose and need. Wetland impacts consist of
8.84 acres of riparian wetlands and 10.31 acres of non-riparian wetlands. Stream impacts
total 779 linear feet. Compensatory mitigation for stream and wetland impacts will be
provided through the purchase of credits from approved mitigation banks and/or NCEEP. It
is the team's desire to meet or exceed all state and federal regulatory requirements in order
to construct an environmentally responsible airport expansion.
•
42
r1
U
13.0 REFERENCES
Cowardin, L.M., V. Carter, F.C. Goblet, and E.T. Laroe. 1979. Classification of Wetland
and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service,
USFWS/OBS 79/31. U. S. Department of Interior. 131 pp.
Henry, V. G. 1989. Guidelines for Preparation of Biological Assessments and Evaluations
for the Red-Cockaded Woodpecker. U. S. Fish and Wildlife Service, Southeast
Region, Atlanta, Georgia. 13pp.
Horton, J.W. and V.A. Zullo. 1991. The Geology of the Carolinas. The University of
Tennessee Press, Knoxville, TN. 406 pp.
Husdon, Wendy E. 1991. Landscape Linkages and Biodiversity. Island Press, Washington,
D.C. 196 pp.
Martof, B.S., W.M. Palmer, J.R. Bailey, and J.R. Harrison III. 1980. Amphibians and
Reptiles of the Carolinas and Virginia. The University of North Carolina Press,
Chapel Hill, NC. 264 pp.
National Research Council. 2002. Riparian Areas - Functions and Strategies for
Management. National Academy Press. Washington, D.C. 428 pp.
• North Carolina Division of Environmental Management. 1992. Administrative Code
Section: 15A NCAC 2B .0100 - Procedures for Assignment of Water Quality
Standards and 15A NCAC 2B .0200 - Classifications and Water Quality
StandardsApplicable to Surface Waters of North Carolina. N.C. Department of
Environmental, Health and Natural Resources (DENHR), Raleigh. 34 pp.
North Carolina Division of Water Quality. 2003. Basinwide Assessment Report-Tar River
Basin. N.C. Department of Environmental and Natural Resources, Raleigh, NC. 201
PP.
North Carolina Division of Water Quality. 2004a. North Carolina Waterbodies Listed by
County. N.C. Department of Environmental and Natural Resources, Raleigh.
http://h2o.enr.state.nc.us/bi ms/reports/basinsandwaterbodies/lolinston.pdf.
North Carolina Division of Water Quality. 2004b. 2004 Tar-Pamlico Basinwide Water
Quality Plan. N.C. Department of Environmental and Natural Resources, Raleigh.
178 pp + appendices.
http://112o.enr.state.nc.us/basinwide/tarpam draft dec2003.html.
Potter, E.F., J.F. Parnell, and R.P. Teulings. 1980. Birds of the Carolinas. The University of
North Carolina Press, Chapel Hill, NC. 408 pp.
Radford, A.E., H.E. Ahles and C.R. Bell. 1968. Manual of the Vascular Flora of the
• Carolinas. The University of North Carolina Press, Chapel Hill, NC. 1183 pp.
43
CJ
Schafale, M.P. and A.S. Weakley. 1990. Classification of the Natural Communities of
North Carolina: Third Approximation. North Carolina Natural Heritage Program,
Division of Parks and Recreation; NC Department of Environment, Health and
Natural Resources, Raleigh, NC. 325 pp.
Seaber, P.R., F.P. Kapinos and G.L. Knapp. 1987. Hydrologic Unit Maps. US Geological
Survey - Supply Paper 2294.
United States Department of Agriculture. 1989. Natural Resources Conservation Service.
Soil Survey of Johnston County, North Carolina. 127 pp.
Fish and Wildlife Service. 1992. Tar Spinymussel Recovery Plan: First Revision. U.S.
Department of the Interior, Fish and Wildlife Service, Southeast Region, Atlanta,
GA. 34 pp.
U. S. Fish and Wildlife Service. 1993. Dwarf Wedge Mussel Recovery Plan. U.S.
Department of the Interior, Fish and Wildlife Service. Hadley, MA. 52 pp
United States Geological Survey. 1981. Powahatan, NC 7.5-minute topographic
quadrangle.
Webster, W.D., J.F. Parnell, and W.C. Biggs, Jr. 1985. Mammals of the Carolinas, Virginia,
and Maryland. The University of North Carolina Press, Chapel Hill, NC. 255 pp.
U.S. Fish and Wildlife Service. 2003. Recovery plan for the red-cockaded
Woodpecker (Picoides borealis): second revision. U.S. Fish and Wildlife
Service, Atlanta, GA. 296pp.

44
•
APPENDIX A
JD Request
0
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•
WDICKSON
community infrastructure consultants
March 31, 2009
Mr. Thomas Brown
US Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Subject: Jurisdictional Determination Request - Johnston County Airport Extended Runway Safety
Area and Corporate Area Development
Johnston County, North Carolina.
Dear Mr. Brown,
On behalf of Johnston County Airport Authority (Owner), WK Dickson is requesting a jurisdictional
• Determination for the above referenced property (Action ID # 200120723). Two projects are proposed
the Johnston County Airport (1) Extend the Runway Safety Area at the Northern end to the required
1000 feet; (2) Develop needed additional Aircraft Parking Apron and Hangar space (Corporate Area).
The Johnston County Airport (JNX) is located approximately 26 miles southeast of Raleigh-Durham
International Airport (RDU) and approximately 3 miles northwest of the Town of Smithfield. JNX is a
designated reliever for RDU. The proposed project area, being located entirely on airport property, is
compatible with the existing land use of the immediate area. Adjacent land is primarily agricultural
with parcels of low-density rural residential development.
Enclosed are a location map, USGS map, soil map, aerial photography, survey map showing wetlands
and stream on the property, jurisdictional determination forms, and routine wetland determination
data forms.
The delineation has been field verified by the USACE personnel twice. On January 25, 2006, James
Shern and Jean Manuele met with Daniel Ingram to review the additional delineated areas east of the
runway. On July 22 , 2008 Thomas Brown met with Daniel Ingram to review the requested Corporate
Area re-delineation.
171
720 Corporate Center Drive
Raleigh, NC 27607
Tel. [phone]
Fax [phone]
www.wk(iicl(son.com Transportation . Water Resources • Urban Development • Gwomatics

Thank you in advance for your timely response and cooperation. When you have had an opportunity
to review the material, please call me to schedule a site visit if necessary. Return any comments to my
attention at the address below. Please feel free to contact me with any questions that you may have
with this project through e-mail [e-mail] or phone [phone].
Sincerely,
W.K. Dickson & Co., Inc.
Daniel Ingram
WK. Dickson & Co., Inc.
720 Corporate Center Drive
Raleigh, NC 27607
Enclosures
cc: Ray Blackmon, Johnston County Airport
Jean Manuele, USACE
Carroll Triplett, WK Dickson
Chastity N. Clark, NCDOA
Project file, 80324.00.CA
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• APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD):
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:
C. PROJECT LOCATION AND BACKGROUND INFORMATION:
Johnston County Airport - Runway Saftey Area
Swift Creek and Wetlands
State:North Carolina County/parish/borough: Johnston City: Smithfield
Center coordinates of site (lat/long in degree decimal format): Lat. 35.5494660° Long. 78.3858689°
Universal Transverse Mercator:
Name of nearest waterbody: Swift Creek
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: Neuse River
Name of watershed or Hydrologic Unit Code (HUC): Neuse (HUC 03020201, Upper Neuse)
Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Office (Desk) Determination. Date:
Field Determination. Date(s):
SECTION II: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
• review area. [Required]
Waters subject to the ebb and flow of the tide.
Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There "waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
Indicate presence of waters of U.S. in review area (check all that apply): r
TNWs, including territorial seas
Wetlands adjacent to TNWs
Relatively permanent waters2 (RPWs) that flow directly or indirectly into TNWs
Non-RPWs that flow directly or indirectly into TNWs
Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 20,889 linear feet: (Reedy Branch) -20 width (ft) and/or acres.
Wetlands: 117.25 acres.
c. Limits (boundaries) of jurisdiction based on: 'S ""w,
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable) :3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
Boxes checked below shall be supported by completing the appropriate sections in Section III below.
Z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs •
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section HI.D.1.; otherwise, see Section HLB below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
2. Wetland adjacent to TNW
Summarize rationale supporting conclusion that wetland is "adjacent":
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rspanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section III.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section III.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbody° is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the •
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section III.B.2 for any onsite wetlands, and Section III.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section III.C below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: Pick List
Drainage area: Pick List
Average annual rainfall: inches
Average annual snowfall: inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
? Tributary flows through tributaries before entering TNW.
Project waters arc Pick List river miles from TNW.
Project waters arc Pick List river miles from RPW.
Project waters are Pick List aerial (straight) miles from TNW.
Project waters arc Pick List aerial (straight) miles from RPW.
Project waters cross or scrvc as state boundaries. Explain:
Identify flow route to TNW5:
Tributary stream order, if known:
•
"Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
s Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
(b) General Tributary Characteristics (check all that apply):
Tributary is: ? Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: feet
Average depth: feet
Average side slopes A.
Primary tributary substrate composition (check all that apply):
? Silts ? Sands ? Concrete
? Cobbles ? Gravel ? Muck
? Bedrock ? Vegetation. Type/% cover:
? Other. Explain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain:
Presence of run/riffle/ ool complexes. Explain:
Tributary geometry:
Tributary gradient (approximate average slope): %
(c) Flow:
Tributary provides for: tum
Estimate average number of flow events in review area/year:
Describe flow regime:
Other information on duration and volume:
Surface flow is. Pick List. Characteristics:
Subsurface flow: . Explain findings:
? Dye (or other) test performed:
•
Tributary has (check all that apply):
? Bed and banks
? OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
? vegetation matted down, bent, or absent ?
? leaf litter disturbed or washed away ?
? sediment deposition ?
? water staining ?
? other (list):
E] Discontinuous OHWM.' Explain:
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
If factors other than the OHWM were used to determine lateral extent of CWA jurisdiction (check all that apply):
High Tide Line indicated by: 13 Mean High Water Mark indicated by:
? oil or scum line along shore objects ? survey to available datum;
? fine shell or debris deposits (foreshore) ? physical markings;
? physical markings/characteristics ? vegetation lines/changes in vegetation types.
? tidal gauges
? other (list):
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain:
Identify specific pollutants, if known:
• 6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
? Riparian corridor. Characteristics (type, average width): •
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) General Wetland Characteristics:
Properties:
Wetland size: acres
Wetland type. Explain:
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: Explain:
Surface flow is:
Characteristics:
Subsurface flow: Explain findings:
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
? Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain: •
? Separated by berm/barrier. Explain:
(d) Proximity (Relationshi l to TNW
Project wetlands are river miles from TNW.
Project waters are aerial (straight) miles from TNW.
Flow is from: -
Estimate approximate location of wetland as within the " floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
? Vegetation type/percent cover. Explain:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if any
All wetland(s) being considered in the cumulative analysis
Approximately ( ) acres in total are being considered in the cumulative analysis.
0
For each wetland, specify the following:
• Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
0 TNWs: linear feet width (ft), Or, acres.
Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial: Swift Creek flows year round and is at least a 4 h order stream with a draiange area of 149.7 square
miles at Buckett Jones Road (SR 1501).
Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
• seasonally:
Provide estimates for jurisdictional waters in the review area (check all that apply): •
Tributary waters: 20,889 linear feet(Reedy Branch) 20 width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWs8 that flow directly or indirectly into TNWs.
Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III.C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW: Wetlands are proximal, have a direct surface connection, are subject to regular flood
events, and have a subsurface hydrologic connection.
Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section III.B and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: 117.25 acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this •
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Demonstrate that impoundment was created from "waters of the U.S.," or
Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY): to
which are or could be used by interstate or foreign travelers for recreational or other purposes.
from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
which are or could be used for industrial purposes by industries in interstate commerce.
Interstate isolated waters. Explain:
Other factors. Explain:
8See Footnote # 3.
9 To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook. •
10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
• Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
Wetlands: acres.
F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
udgment (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
Provide acreage estimates for non-jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
• Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
Data sheets prepared/submitted by or on behalf of the applicant/consultant.
? Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
Data sheets prepared by the Corps:
Corps navigable waters' study:
U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
U.S. Geological Survey map(s). Cite scale & quad name: 1:2,400 Powhatan, NC and Selma, NC,.
USDA Natural Resources Conservation Service Soil Survey. Citation: NRCS Soil Data Mart, Johnston County, NC.
National wetlands inventory map(s). Cite name: National Wetlands Inventory, NC One Map.
State/Local wetland inventory map(s):
FEMA/FIRM maps: FIRM Panel 1685, December 2005.
100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Photographs: ® Aerial (Name & Date): Johnston County GIS, 2005.
or ? Other (Name & Date):
Previous determination(s). File no. and date of response letter: File Action ID No. 200321313 September 15, 2003.
Applicable/supporting case law:
Applicable/supporting scientific literature:
Other information (please specify):
0 B. ADDITIONAL COMMENTS TO SUPPORT JD:
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers •
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD):
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:
C. PROJECT LOCATION AND BACKGROUND INFORMATION:
Johnston County Airport - Huckleberry Branch and wetlands
State:North Carolina County/parish/borough: Johnston City: Smithfield
Center coordinates of site (lat/long in degree decimal format): Lat. 35.5250147° Long. 78.4005272°
Universal Transverse Mercator:
Name of nearest waterbody: Middle Creek
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: Neuse River
Name of watershed or Hydrologic Unit Code (HUC): Neuse (HUC 03020201, Upper Neuse)
Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Office (Desk) Determination. Date:
Field Determination. Date(s):
SECTION H: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review area. [Required]
Waters subject to the ebb and flow of the tide. •
Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There Pick List "waters of the U.S.° within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): t
TNWs, including territorial seas
Wetlands adjacent to TNWs
Relatively permanent waters2 (RPWs) that flow directly or indirectly into TNWs
Non-RPWs that flow directly or indirectly into TNWs
Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 874 linear feet: 3 width (ft) and/or acres.
Wetlands: 8.84 acres.
c. Limits (boundaries) of jurisdiction based on:
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable) :3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
•
Boxes checked below shall be supported by completing the appropriate sections in Section III below.
z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
is A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section HI.D.1.; otherwise, see Section HI.B below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
2. Wetland adjacent to TNW
Summarize rationale supporting conclusion that wetland is "adjacent":
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section III.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section HI.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
• If the waterbody° is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section HI.B.2 for any onsite wetlands, and Section IH.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section HI.C below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: Pick List
Drainage area: ;Pick List
Average annual rainfall inches
Average annual snowfall: inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
? Tributary flows through ' tributaries before entering TNW.
Project waters are Pick List river miles from TNW.
Project waters are Pick List river miles from RPW.
Project waters are Pick List aerial (straight) miles from TNW.
Project waters are Pick List aerial (straight) miles from RPW.
Project waters cra)s u: k;rtiL as state boundaries. Explain:
Identify flow route to TNWS:
Tributary stream order, if known:
• ° Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
(b) General Tributary Characteristics (check all that apples
Tributary is: ? Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: feet
Average depth: tee[
Average side slopes: Pick List.
Primary tributary substrate composition (check all that apply):
? Silts ? Sands ? Concrete
? Cobbles ? Gravel ? Muck
? Bedrock ? Vegetation. Type/% cover:
? Other. Explain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain:
Presence of run/riffle/ ool complexes. Explain:
Tributary geometry: ,
Tributary gradient (approximate average slope): %
(c) Flow:
Tributary provides for: w
Estimate average number of flow events in review area/year: Me"
Describe flow regime:
Other information on duration and volume:
Surface flow is: Pick List. Characteristics:
Subsurface flow: fl?. Explain findings:
? Dye (or other) test performed:
Tributary has (check all that apply):
? Bed and banks
? OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
? vegetation matted down, bent, or absent ?
? leaf litter disturbed or washed away ?
? sediment deposition ?
? water staining ?
? other (list):
r_1 Discontinuous OHWM.7 Explain:
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
If factors other than the OHWM were used to determine lateral extent of CWA jurisdiction (check all that apply):
High Tide Line indicated by: Mean High Water Mark indicated by:
? oil or scum line along shore objects ? survey to available datum;
? fine shell or debris deposits (foreshore) ? physical markings;
? physical markings/characteristics ? vegetation lines/changes in vegetation types.
? tidal gauges
? other (list):
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain:
Identify specific pollutants, if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OIIWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
•
•
•
(iv) Biological Characteristics. Channel supports (check all that apply):
• ? Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) General Wetland Characteristics:
Properties:
Wetland size: acres
Wetland type. Explain:
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Fioti Relationship with Non-TNW:
Flow is: Pick List. Explain:
Surface flow is: x
Characteristics:
Subsurface flow: . Explain findings:
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
? Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
river miles from TNW.
(d) Proximity (Relationship) to TNW
Project wetlands are are Pick Li _ aeria
Project waters ] (straight) miles from TNW.
Pick List.
Flow is Estimate from: approximate location of wetland as within the. Pick List floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
? Vegetation type/percent cover. Explain:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if an
All wetland(s) being considered in the cumulative analysis:
Approximately ( ) acres in total are being considered in the cumulative analysis.
0
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres) •
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section I11.1):
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section IILD:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section IILD:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
TNWs: linear feet width (ft), Or, acres.
Wetlands adjacent to TNWs: acres.
RPWs that flow directly or indirectly into TNWs.
Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial: Tributary has been flowing during multiple site visits throughout year.
Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
seasonally:
•
Provide estimates for jurisdictional waters in the review area (check all that apply):
• Tributary waters: 874 linear feet 3 width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWss that flow directly or indirectly into TNWs.
Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III.C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW: Wetlands are proximal, have a direct surface connection, are subject to regular flood
events, and have a subsurface hydrologic connection.
Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section 111.13 and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: 8.84 acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
• conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters .9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Demonstrate that impoundment was created from "waters of the U.S.," or
Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):ro
which are or could be used by interstate or foreign travelers for recreational or other purposes.
from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
which are or could be used for industrial purposes by industries in interstate commerce.
Interstate isolated waters. Explain:
Other factors. Explain:
. gSee Footnote # 3.
v To complete the analysis refer to the key in Section 111.13.6 of the Instructional Guidebook.
10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
Wetlands: acres.
NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
'udgment (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
•
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
Data sheets prepared/submitted by or on behalf of the applicant/consultant.
? Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
Data sheets prepared by the Corps:
Corps navigable waters' study:
U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
U.S. Geological Survey map(s). Cite scale & quad name: 1:2,400 Pwohatan, NC, and Selma, NC.
USDA Natural Resources Conservation Service Soil Survey. Citation: NRCS Data Mart, Johnston County, NC.
National wetlands inventory map(s). Cite name: NC One, NWI.
State/Local wetland inventory map(s):
FEMA/FIRM maps: FEMA Panel 1685 December 2005.
100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Photographs: ® Aerial (Name & Date): Johnston County GIS 2005.
or ? Other (Name & Date):
Previous determination(s). File no. and date of response letter: Action ID # 200321313 September 15, 2003.
Applicable/supporting case law:
Applicable/supporting scientific literature:
Other information (please specify):
B. ADDITIONAL COMMENTS TO SUPPORT JD: 9
DATA FORM 1 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)

•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 5
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Scri us c ernus Stratum
Herb Indicator
OBL Dominant Plant Species Stratum Indicator
9)
2) Salix nigra SubCanopy OBL 10)
3) Arundinaria i antea Herb FACW 11)
4) Acer rubrum Canopy FAC 12)
5) Carex sp. Herb FACW 13)
6) Juncus effusus Herb FACW+ 14)
7) Typha latifolia Herb OBL 15)
8) 1 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs X Inundated
Other Saturated in upper 12 in.
Water marks
X No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: 2 in. Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: = X Fac-Neutral test
Other (explain in remarks
Remarks:
SOILS
Community ID: W5 2 of 28
Plot ID: Wetland
Map Unit Name: Rains sandy loam
(series and phase)
Taxonomy: thermic typic Paleaquults
(subgroup) Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-6 10YR4/1 Loam
-
6-18 10YR5/1 10YR5/8 Small and common Sandy Clay Loam

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime X
Reducing conditions
x Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No
(Remarks:
Is the Sampling Point in a Wetland?
Yes x No

is
E
DATA FORM 3 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)
•
U
Project / Site: Johnston County Airport Date: 19 Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W4
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Carex s p. Stratum
Herb Indicator
FACW Dominant Plant Species Stratum Indicator
9)
2) Acer rubrum Canopy FAC 10)
3) Arundinaria i antea Herb FACW 11)
4) Smilax rotundifolia Vine FAC 12)
5) Nyssa sylvatica Canopy FAC 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs X Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: 3 in. Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: x Water stained leaves
Local soil survey data
Depth to saturated soil: x Fac-Neutral test
Other explain in remarks
Remarks:
SOILS
Community ID: W4 4 of 28
Plot ID: Wetland
Map Unit Name: Rains sandy loam
(series and phase)
Taxonomy: thermic typic Paleaquults
(subgroup) Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-8 10YR2/1 Sand Clay Loam
8-18 10YR2/1 Sandy Clay

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime X
Reducing conditions
x Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes X No Is the Sampling Point in a Wetland?
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No Yes x No
Remarks:
•
•
n
LJ
DATA FORM 5 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 4
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Upland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Arundinaria i antea Stratum
Herb Indicator
FACW Dominant Plant Species Stratum Indicator
9)
2) Acer rubrum Canopy FAC 10)
3) Pinus taeda Canopy FAC 11)
4) Magnolia vir iniana Subcano FACW+ 12)
5) Quercus nigra Canopy FAC 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: >18 x = Fac-Neutral test
Other explain in remarks
Remarks:
SOILS
Community ID: W4 6 of 28
Plot ID: Upland
Map Unit Name: Rains sandy loam
(series and phase)
Taxonomy: thermic typic Paleaquults
(subgroup) Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-6 10YR3/1 Loam
6-18 10YR5/1 Clay Loam

Hydric Soil Indicators:
Histosol Concretions
Histic epipedon High organic content in sand surface layer
Sulfidic odor Organic streaking in sandy soils
Aquic moisture regime X Listed on local hydric soils list
Reducing conditions Listed on national hydric soils list
x Gleyed or low chroma colors Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No_
Wetland Hydrology Present? Yes No x
Hydric Soils Present? Yes x No-
Remarks:
Is the Sampling Point in a Wetland?
Yes No x
•
•
0
DATA FORM 7 of 28
ROUTINE WETLAND DETERMINATION
(1987 COE WETLANDS DELINEATION MANUAL)

•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 2
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Carex s p. Stratum
Herb Indicator
FACW Dominant Plant Species Stratum Indicator
9)
2) Juncus effusus Herb FACW+ 10)
3) Pol onum enns Ivanicum Herb FACW+ 11)
4) Solida o ru osa Herb FAC 12)
5) 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other x Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
X Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: 3 in. X Fac-Neutral test
Other explain in remarks
Remarks:
SOILS
Community ID: W2 8 of 28
Plot ID: Wetland
Map Unit Name: Rains sandy loam
(series and phase)
Taxonomy: thermic typic Paleaquults
(subgroup) Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-10 10YR4/1 5YR4/6 small and common Loam clay
10-18 10YR4/1 Loamy clay

Hydric Soil Indicators:
Histosol Concretions
Histic epipedon High organic content in sand surface layer
Sulfidic odor Organic streaking in sandy soils
Aquic moisture regime X Listed on local hydric soils list
Reducing conditions Listed on national hydric soils list
x Gleyed or low chroma colors Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No
I Remarks:
Is the Sampling Point in a Wetland?
Yes x No
•
•
0
DATA FORM 9 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)
L?
C]
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 2
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No X Plot ID: Upland
describe in remarks if es
VEGETATION
Dominant Plant Species Stratum Indicator
1) Dominant Plant Species Stratum Indicator
9)
2) 10)
3) 11)
4) 12)
5) 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 0
Remarks:
Agricultural field
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: >18 Fac-Neutral test
Other (explain in remarks
Remarks:
SOILS
Community ID: W2 10 of 28
Plot ID: Upland
Map Unit Name: Norfolk loamy sand, 0-2
(series and phase)
Taxonomy: thermic typic Kandiudults
(subgroup) percent slopes Drainage Class: well

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-15 10YR5/4 Sand Loam
15-18 10YR4/4 Coarse Sandy Loam

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime
Reducing conditions
Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes No x Is the Sampling Point in a Wetland?
Wetland Hydrology Present? Yes No x
Hydric Soils Present? Yes No x Yes No x
Remarks:
U
n
U
E
DATA FORM 11 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)

•
Project / Site: Johnston County Airport Date: 19 )an-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W10
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) N ssa s Ivatica Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Carex sp. Herb FACW 10)
3) Pinus taeda Canopy FAC 11)
4) Li uidambar st raciflua Canopy FAC+ 12)
5) Quercus alba Canopy FACU 13)
6) Smilax rotundifolia Vine FAC 14)
7) Quercus nigra Canopy FAC 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 86
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other X Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
X Oxidized root channels in <12 in.
Depth to free water in pit: 0 Water stained leaves
Local soil survey data
Depth to saturated soil: 0 x Fac-Neutral test
Other (explain in remarks
Remarks:
SOILS
Community ID: W 1012 of 28
Plot ID: Wetland
Map Unit Name: Dogue fine sandy loam, 0-2 percent slopes Drainage Class: mod well
(series and phase)
Taxonomy: thermic aquic Hapludults Confirm Map Type? Yes No x
(subgroup)

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-6 10YR6/2 10YR5/8 small and common Clay Loam
6-18 10YR6/1 10YR5/8 medium and many Clay

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime
Reducing conditions
x Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No
(Remarks:
Is the Sampling Point in a Wetland?
Yes x No

0
DATA FORM 13 of 28
ROUTINE WETLAND DETERMINATION
(1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: w 11
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) N ssa s Ivatica Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Acer rubrum Canopy FAC 10)
3) Carex s p. Herb FACW 11)
4) Smilax rotundifolia Vine FAC 12)
5) Ilex opaca Subcanopy FAC- 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other X Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: 0 x Water stained leaves
Local soil survey data
Depth to saturated soil: 0 x Fac-Neutral test
Other explain in remarks
Remarks:
SOILS
Community ID: W 11 14 of 28
Plot ID: Wetland
Map Unit Name: Wehadkee loam, frequentl
(series and phase)
Taxonomy: thermic typic Fluvaquents
(subgroup) y flooded Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
04 10YR3/1 Loam
4-12 10YR5/1 Sandy Clay Loam
12-18 10YR5/1 10YR5/8 medium and common Sand Clay

Hydric Soil Indicators:
Histosol Concretions
Histic epipedon High organic content in sand surface layer
Sulfidic odor Organic streaking in sandy soils
Aquic moisture regime X Listed on local hydric soils list
Reducing conditions Listed on national hydric soils list
x Gleyed or low chroma colors Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No
l Remarks:
Is the Sampling Point in a Wetland?
Yes x No
•

0
DATA FORM 15 of 28
• ROUTINE WETLAND DETERMINATION
(1987 COE WETLANDS DELINEATION MANUAL)
•
0 Remarks:
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: w 11
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Upland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Quercus alba Stratum
Canopy Indicator
FACU Dominant Plant Species Stratum Indicator
9)
2) Smilax rotundifolia Vine FAC 10)
3) N ssa s lvatica Canopy FAC 11)
4) Acer rubrum Canopy FAC 12)
5) Ilex opaca Subcanopy FAC- 13)
6) Fa us randifolia Canopy FACU 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 50
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: >18 x Fac-Neutraftest
Other (explain in remarks

SOILS
Community ID: W 11 16 of 28
Plot ID: Upland
Map Unit Name: Wehadkee loam, frequentl
(series and phase)
Taxonomy: thermic typic Fluvaquents
(subgroup) y flooded Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-6 10YR4/3 Sand Loam
6-18 10YR5/4 Sand Loam

Hydric Soil Indicators:
Histosol Concretions
Histic epipedon High organic content in sand surface layer
Sulfidic odor Organic streaking in sandy soils
Aquic moisture regime X Listed on local hydric soils list
Reducing conditions Listed on national hydric soils list
Gleyed or low chroma colors Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes No
Hydric Soils Present? Yes No
(Remarks:
Is the Sampling Point in a Wetland?
X
X Yes No x
•

0
DATA FORM 17 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 13
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: wetland
describe in remarks if yes) I
VEGETATION
Dominant Plant Species
1) N ssa s lvatica Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Acer rubrum Canopy FAC 10)
3) Smilax rotundifolia Vine FAC 11)
4) Pol onum unctatum Herb FACW+ 12)
5) Carex sparganioides Herb FAC+ 13)
6) 14)
7) 15)
$ 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other X Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: = 0 X Fac-Neutral test
Other explain in remarks
Remarks:
AOII A
Community ID: W 1318 of 28
Plot ID: Wetland
Map Unit Name: Wehadkee loam, frequently
(series and phase)
Taxonomy: thermic typic Fluvaquents
(subgroup) flooded Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-8 10YR4/1 Sand Clay Loam
8-18 10YR5/1 Sandy Clay Loam

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime X
Reducing conditions
x Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No
(Remarks:
Is the Sampling Point in a Wetland?
Yes x No
•
•

DATA FORM 19 of 28
• ROUTINE WETLAND DETERMINATION
(1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 15
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Pol onum unctatum Stratum
Herb Indicator
FACW + Dominant Plant Species Stratum Indicator
9)
2) Carex sp. Herb FACW 10)
3) Li ustrum sinense Scrub FAC 11)
4) Acer rubrum Canopy FAC 12)
5) 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other X Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
X Oxidized root channels in <12 in.
Depth to free water in pit: 0 X Water stained leaves
Local soil survey data
Depth to saturated soil: 0 X Fac-Neutral test
Other explain in remarks
Remarks:
SOILS
Community ID: W 1520 of 28
Plot ID: Wetland
Map Unit Name: Altavista fine sandy loam, occasionally flooded Drainage Class: mod well
(series and phase)
Taxonomy: thermic aquic Hapludults Confirm Map Type? Yes No x
(subgroup)

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-10 2.5YR5/3 7.5YR4/6 small and common Clay Loam
10-18 10YR5/2 7.5YR4/6 small and common Clay Loam

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime
Reducing conditions
x Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes X No Is the Sampling Point in a Wetland?
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No Yes x No
Remarks:
•

?7
DATA FORM 21 of 28
• ROUTINE WETLAND DETERMINATION
(1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: w 15
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Upland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Acer rubrum Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Ilex opaca Subcanopy FAC- 10)
3) Pinus taeda Canopy FAC 11)
4) Vitis rotundifolia Vine FAC 12)
5) Ligustrum sinense Scrub FAC 13)
6) Smilax rotundifolia Vine FAC 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 83
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: >18 x = Fac-Neutral test
Other explain in remarks
Remarks:
SOILS
Community ID: W 1522 of 28
Plot ID: Upland
Map Unit Name: Altavista fine sandy loam, occasionally flooded Drainage Class: mod well
(series and phase)
Taxonomy: thermic aquic Hapludults Confirm Map Type? Yes No x
(subgroup)

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-8 10YR4/4 Sand Loam
8-18 5YR5/8 Sandy Clay

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime
Reducing conditions
Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes X No _
Wetland Hydrology Present? Yes No x
Hydric Soils Present? Yes No x
(Remarks:
Is the Sampling Point in a Wetland?
Yes No x
•
0
0
DATA FORM 23 of 28
ROUTINE WETLAND DETERMINATION
• (1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 16
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) N ssa s Ivatica Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Acer rubrum Canopy FAC 10)
3) Smilax rotundifolia Vine FAC 11)
4) Carex s p. Herb FACW 12)
5) 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 100
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs X Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: X Drainage patterns in wetlands
Depth of surface water: 1 in. Secondary Indicators
X Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: x Fac-Neutral test
Other (explain in remarks
Remarks:
SOILS
Community ID: W 1624 of 28
Plot ID: Wetland
Map Unit Name: Wehadkee-Chastain association, fre
(series and phase)
Taxonomy: thermic typic Fluvaquents
(subgroup) quently flooded Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-4 10YR4/1 Sand Loam
4-18 10YR5/1 7.5YR5/8 medium and many Sandy Clay laom

Hydric Soil Indicators:
Histosol
Histic epipedon
Sulfidic odor
Aquic moisture regime X
Reducing conditions
x Gleyed or low chroma colors
Concretions
High organic content in sand surface layer
Organic streaking in sandy soils
Listed on local hydric soils list
Listed on national hydric soils list
Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No Is the Sampling Point in a Wetland?
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No Yes x No
Remarks:

0
0
DATA FORM 25 of 28
ROUTINE WETLAND DETERMINATION
. (1987 COE WETLANDS DELINEATION MANUAL)
•
•
Project / Site: Johnston County Airport Date: 19-Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: W 16
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No x Plot ID: Wetland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Pinus taeda Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Smilax rotundifolia Vine FAC 10)
3) Li uidambar st raciflua Canopy FAC+ 11)
4) Lonicera japonica Vine FAC- 12)
5) Acer rubrum Canopy FAC 13)
6) N ssa s Ivatica Canopy FAC 14)
7) Carex sp. Herb FACW 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 86
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other X Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
X Oxidized root channels in <12 in.
Depth to free water in pit: 0 Water stained leaves
Local soil survey data
Depth to saturated soil: = 0 x Fac-Neutral test
Other (explain in remarks
Remarks:
SOILS
Community ID: W 1626 of 28
Plot ID: Wetland
Map Unit Name: Leaf silt loam
(series and phase)
Taxonomy: thermic typic Albaquults
(subgroup) Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-6 10YR5/1 10YR5/6 Medium and common Clay Loam
6-18 10YR6/1 5YR5/8 Medium and common Clay

Hydric Soil Indicators:
Histosol Concretions
Histic epipedon High organic content in sand surface layer
Sulfidic odor Organic streaking in sandy soils
Aquic moisture regime x Listed on local hydric soils list
Reducing conditions Listed on national hydric soils list
x Gleyed or low chroma colors Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes x No
Wetland Hydrology Present? Yes x No
Hydric Soils Present? Yes x No
(Remarks:
Is the Sampling Point in a Wetland?
Yes x No
•
0
0
DATA FORM 27 of 28
• ROUTINE WETLAND DETERMINATION
(1987 COE WETLANDS DELINEATION MANUAL)
•
E Remarks:
Project / Site: Johnston County Airport Date: 19 Jan-2006
Applicant / Owner: Johnston County Airport Authority County: Johnston
Investigator: Daniel Ingram State: NC
Do normal circumstances exist on the site? Yes x No Community ID: w 16
Is the site significantly disturbed (Atypical situation)? Yes No x Transect ID:
Is the area a potential problem area? Yes No X Plot ID: Upland
describe in remarks if es
VEGETATION
Dominant Plant Species
1) Pinus taeda Stratum
Canopy Indicator
FAC Dominant Plant Species Stratum Indicator
9)
2) Smilax rotundifolia Vine FAC 10)
3) Li uidambar st raciflua Canopy FAC+ 11)
4) N ssa s Ivatica Canopy FAC 12)
5) Ilex opaca Subcanopy FAC- 13)
6) 14)
7) 15)
8 16
Percent of dominant species that are OBL, FACW, or FAC (excluding FAC-): 80
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Recorded Data
Stream, lake, or tide gauge Primary Indicators
Aerial Photographs Inundated
Other Saturated in upper 12 in.
Water marks
x No Recorded Data Available Drift lines
Sediment deposits
Field Observations: Drainage patterns in wetlands
Depth of surface water: Secondary Indicators
Oxidized root channels in <12 in.
Depth to free water in pit: Water stained leaves
Local soil survey data
Depth to saturated soil: > 18 x Fac-Neutral test
Other (explain in remarks

SOILS
Community ID: W 1628 of 28
Plot ID: Upland
Map Unit Name: Leaf silt loam
(series and phase)
Taxonomy: thermic typic Albaquults
(subgroup) Drainage Class: poor

Confirm Map Type? Yes No x

Depth
Horizon
Matrix Colors
Mottle Colors Mottle Size,
Abundance, Contrast Texture, Concretions,
Structure, etc.
0-6 10YR5/1 10YR5/8 Medium and common Clay Loam
6-18 10YR5/1 10YR5/8 Medium and many Clay

Hydric Soil Indicators:
Histosol Concretions
Histic epipedon High organic content in sand surface layer
Sulfidic odor Organic streaking in sandy soils
Aquic moisture regime x Listed on local hydric soils list
Reducing conditions Listed on national hydric soils list
x Gleyed or low chroma colors Other (explain in remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic vegetation present? Yes X No Is the Sampling Point in a Wetland?
Wetland Hydrology Present? Yes No x
Hydric Soils Present? Yes x No Yes No x
Remarks:
n
u
0
0
DATA FORM
• ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
•
Project/Site: Johnston County Airport Date: 7M2008
Applicant/Owner: Johnston County Airport Authority County: Johnston
Investigator: George Lankford State: NC
Do Normal Circumstances exist on the site? Yes X No Community ID: Forested Wetland
Is the site significantly disturbed (Atypical Situation)? Yes No X Transect ID:
Is the area a potential Problem Area? Yes No X Plot ID: W 17
(If needed, explain in remarks.)
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
Li uidambars racif/ua Canopy FAC+
Betula ni ra Canopy FACW
Li ustrum sinense Shrub FAC
Ath rium filix-femina Herb FAC
Saururus cemuus Herb OBL
Boehmeda c lindrica Herb FACW+
Lonicera Japonica Vine FAC-

Percent of Dominant Species that are OBL, FACW or FAC (excluding FAC-) 86
Remarks:
HYDROLOGY
Recorded Data (Describe in Remarks:)
Stream, Lake or Tide Gauge
X Aerial Photographs
Other
No Recorded Data Available Wetland Hydrology Indicators
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Water Marks
Drift Lines
Field Observations: Sediment Deposits
X Drainage Patterns in Wetlands
Depth of Surface Water: (in.) Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 in.
Depth to Free Water in Pit: 19 (in.) X Water-Stained Leaves
Local Soil Survey Data
Depth to Saturated Soil: 19 (in.) X FAC-Neutral Test
Other (Explain in Remarks)
Remarks:
9
Project/Site: Johnston County Airport Community ID: Forested Wetland •
Date: 7/31/2008 Transect ID:
Plot ID: W 17
SOILS
Map Unit Name
(Series and Phase): Leaf silt loam

Taxonomy (Subgroup): TypicAlbaquu/ts Drainage Class: poorly drained
Confirm Mapped Type?
Yes
X No
Profile Description:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors
(Munsell Moist)
Mottle Texture, Concretions,
Abundance/Contrast Structure, etc.
0-10 7.5 YR 4/1 7.5 YR 3/4 3% Sand loam
10-22 7.5 YR 4/1 7.5 YR 6/1 10% Sand loam

Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
Aquic Moisture Regime
Reducing Conditions
X Gleyed or Low-Chroma Colors
Concretions
High Organic Content in Surface Layer in Sandy Soils
Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List
Listed on National Hydric Soils List
Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present? X Yes No
Wetland Hydrology Present? X Yes No
Hydric Soils Present? X Yes No
is this Sampling Point Within a Wetland? X Yes No
Remarks

E
DATA FORM
• ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
•
Project/Site: Johnston County Airport Date: 7M 2008
Applicant/Owner: Johnston County Airport Authority County: Johnston
Investigator: George Lankford State: NC
Do Normal Circumstances exist on the site? Yes X No Community ID: Forested Upland
Is the site significantly disturbed (Atypical Situation)? Yes No X Transect ID:
Is the area a potential Problem Area? Yes No X Plot ID: W17
(If needed, explain in remarks.)
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
Lindera benzoin Canopy FACW
Lidodendron tuli ifera Canopy FAC
Quercus ni ra Canopy FAC
Clethra alnifolia Shrub FACW
Vaccinium co mbosum Shrub FACW
Chasmanthium /axum Herb FACW-
Smilax rotundifolia Vine FAC
Lonicera 'a onica Vine FAC-

Percent of Dominant Species that are OBL, FACW or FAC (excluding FAC-) 88
Remarks:
HYDROLOGY
Recorded Data (Describe in Remarks:)
Stream, Lake or Tide Gauge
X Aerial Photographs
Other
No Recorded Data Available Wetland Hydrology Indicators
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Water Marks
Drift Lines
Field Observations: Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water: (in.) Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 in.
Depth to Free Water in Pit: (in.) Water-Stained Leaves
Local Soil Survey Data
Depth to Saturated Soil: >19 (in.) X FAC-Neutral Test
Other (Explain in Remarks)
Remarks:
•
Project/Site: Johnston County Airport Community ID: Forested Upland •
Date: 7/31/2008 Transect ID:
Plot ID: W 17
SOILS
Map Unit Name
(Series and Phase): Leaf silt loam

Taxonomy (Subgroup): TypicA/baquults Drainage Class: poorly drained
Confirm Mapped Type?
Yes
X No
Profile Description:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors
(Munsell Moist)
Mottle Texture, Concretions,
Abundance/Contrast Structure, etc.
0-6 7.5 YR 4/2 Sand loam
6-9 7.5 YR 4/3 7.5 YR 4/4 5%a Sand loam
9-19 7.5 YR 6/6 7.5 YR 6/1 15% Sand loam

Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
Aquic Moisture Regime
Reducing Conditions
Gleyed or Low-Chroma Colors
Concretions
High Organic Content in Surface Layer in Sandy Soils
Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List
Listed on National Hydric Soils List
Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present? X Yes No
Wetland Hydrology Present? Yes X No
Hydric Soils Present? X Yes No
Is this Sampling Point Within a Wetland? Yes X No
Remarks:
•

0
APPENDIX B
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APPENDIX C
Correspondence

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•
Q*P??gHT OR ly?'?
y a

United States Department of the Interior
FISH AND WILDLIFE SERVICE
Raleigh Feld Office
Post Office Box 33726
Raleigh, North Carolina 27686-3726
May 22, 2003

At,
4T
Steve Walker
W.K. Dickson
501 Commerce Drive NE
Columbia. SC 29223
Dear Mr. Walker:
R ??y L
63:1
Thank you for the opportunity to review the draft Environmental Assessment (EA) for the Runway
Safety Extension and Aircraft Parking Apron Expansion at the Johnston County Airport, near
Smithfield, North Carolina. This letter provides the U.S. Fish and Wildlife Service's (Service)
comments pursuant to section 7 of the Endangered Species Act, as amended (16 U.S.C. 1531 et seq.)
(Act). Section 7(a)(2) of the Act requires that all action agencies, in consultation with the Service,
insure that any action federally authorized, funded, or carried out by such agencies is not likely to
jeopardize the continued existence of any federally listed threatened or endangered species.
Based on the information provided in the draft EA and other information available, it appears that
your project has the potential to affect the dwarf wedgemussel (Wasmidonta heterodon), a federally
endangered species that occurs in Swift Creek near the Johnston County Airport. The dwarf
wedgemussel has been reported in the vicinity of SR 1501, approximately 0.5 mile from the proposed
project site and the Service is very concerned about how this population may be impacted by the
proposed project. While the Service is encouraged that the draft EA states that there are plans to
incorporate the North Carolina Wildlife Resources Commission's guidelines to minimize cumulative
and secondary impacts from project construction, the document provided no details about what
measures would be included. The Service believes that the draft EA does not provide enough
information to allow us to concur with a biological conclusion of "not likely to adversely affect."
We request that you provide more detailed information about potential crossings of Swift and/or
Reedy Branch Creek and their associated wetlands and how your sediment and erosion control and
other measures will avoid and/or minimize impacts to these water resources and the dwarf
wedgemussel.
Thank you for the opportunity to review this project. If you have any questions or comments
regarding our response, please contact Mr. Dale W. Suiter of this office at [phone], Ext. 18 or
[e-mail].
Sincerely;
U
Dr. Garland Pardue
Ecological Services Supervisor
cc: NC Wildlife Resources Commission (Bennett Wynne)
RECEIVED
North. Carolina JUN 3 2204
Department of AdministrationN-C- DePt ofTr nQpo,ta .
Us?on Of Avlalod
Michael F. Easley, Governor Gwynn T. Swinson, SecretaryMay,
28, 2004
W. Richard W. Barkes
NC DOT
Division of Aviation
1560 Mail Service Center
Raleigh, NC 27899-1560
Dear Mr. Barkes:
Re: SCH File # 04-E-4220-0292; Finding of No Significant Impact; Proposed project is for the
extension of the Runway Safety Area at the Northern end to the required 1000ft and develop
needed additional Aircraft Parking Apron and Hangar space at the Johnston County Airport.
The above referenced environmental impact information has been submitted to the State Clearinghouse
• under the provisions of the National Environmental Policy Act. According to G. S. 113A-10, when a
state agency is required to prepare an environmental document under the provisions of federal law, the
environmental document meets the provisions of the State Environmental Policy Act. Attached to this
letter for your consideration are the continents made the Department of Environment and Natural
Resources (DENR). You will note that the comments identify issues raised made during the EA review
but to date have not been adequately addressed. It is recommended that Johnston County revise the
FONSI and resubmit it to this office for review and concurrence by DENR.
Should you have any questions, please do not hesitate to call.
Sincerely,
640, X'?Jr'.?e
Ms. Chrys Baggett
Environmental Policy Act Coordinator
Attachments
cc: Region J
Melba McGee, DENR
• Madbig Address: Telephone: [phone] Location Address:
1301 Mail Service. Center Fax [phone] West Jones Street
Raleigh, NC 27699-1301 State Courier 1151-01-00 Raleigh, North Carolina
e-mail [e-mail]
An Equal Opportunity/Affirmative Action Employer
NORTV CAROLINA STATE C1iWAK1NGkiUt';r:
L 2ART1-1ENT OF ADMINISTRATIO1
INTERGOVERNMENTAL REVIEW
STATE NUMER: 04-E-4220-0292 F03
DATE RECEIVED: 04/15/2004
AGENCY RESPONSE: 05/10/2004
REVIEW CLOSED: 05/14/2004
MS RENEE GLEDHILL-EARLEY
CLEARINGHOUSE COORD 1j q
DEPT OF CUL RESOURCES C4
ARCHIVES-HISTORY BLDG - MSC 4617
RALEIGH NC Lk
A REVIEW DISTRIBUTION
CC&PS - DEM, NFIP
i ? J
DENR LEGISLATIVE AFFAIRS „o MAY 2M
DEPT OF AGRICULTURE
DEPT OF CUL RESOURCES', >? _a
DEPT OF TRANSPORTATION ?o 90A
TRIANGLE J COG
PROJECT INFORMATION
APPLICANT: NC DOT
TYPE: National Environmental Policy Act
ERD: Finding of No Significant Impact
.,ESC: Proposed project is for the the Runway Safety Area at the Northern •
end to the required 1000tt and at!elop needed additional Aircraft Parking Apron
and Hangar space at the Johnston County Lirport.
The attached project has been submitted to the N. C. State Clearinghouse for
intergovernmental review. Please review and submit your response by the above
indicated date to 1301 Mail Service Center, Raleigh NC 27699-1301.
If additional review time is needed, please contact this office at [phone].
AS A RESULT OF THIS REVIEW THE FOLLOWING IS SUBMITTED:
NO COMMENT
CO TS ATTACHED
v
SIGNED BY:
o;REC-,
APR2a
APP 2 3 2004
;A
North Carolina Department of Environment and Natural Resources
Michael F. Easley, Governor William G. Ross Jr., Secretary
MEMORANDUM
TO: Chrys Baggett
State Clearinghouse 9
FROM: Melba McGee
Project Review Coordinator
RE: 04-0292 FONSI for the Johnston County Airport Runway Safety Area
Extension and Aircraft Parking Apron Expansion Project
DATE: May 21, 2004
is As a result of this review, we found that the FONSI did not adequately respond to the
department's Environmental Assessment comments. Our divisions have reidentified the
weaknesses and information voids that the applicant will need to respond to before this
department gives final project approval.
This project could cause a variety of impacts including loss of wetlands, wildlife,
aquatic habitat and other high quality resources. This raises the question of whether
impacts can be reduced to less than significant levels to support a FONSI. In order to
limit impacts, the FONSI should incorporate measures that will reduce impacts to less
than significant levels. This approach yields the best opportunity for this department to
approve a FONSI.
The department encourages the applicant to directly notify our commenting divisions
so questions are satisfactorily resolved. Specifically addressing our concerns yields the
best opportunity for the department to avoid delays during the permit processing stage.
Thank you for the opportunity to respond.
Attachments
•
1601 Mail Service Center, Raleigh, North Carolina 27699-1601
Phone: [phone] FAX: [phone] Intemet: www.enr.state.nc.uslENR
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled 110% Post Consumer Paper
•
® North CarohnaWMbfe Resources Commission
Charles R. Fullwood, Executive Director
MEMORANDUM
TO: Melba McGee
Office of Legislative & Intergovernmental Affairs
FROM: Bennett Wynne
Habitat Conservation Program
DATE: January 2, 2003
SUBJECT: Draft Environmental Assessment (EA) for Runway Safety Extension and Aircraft •
Parking Apron Expansion at Johnston County Airport, near Smithfield, North
Carolina. Project No. 03E-0148.
The North Carolina Wildlife Resources Commission has reviewed the project for impacts
to wildlife and fishery resources. A cursory site visit was made on December 19, 2002. We
regret that time constraints delayed our response. Our comments are provided in accordance with
provisions of the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661 et
seq.), Section 401 of the Clean Water Act (as amended), and North Carolina General Statutes
(G.S. 113-131 et seq.).
Johnston County Airport, located off HWY 70 Business north of Smithfield, proposes to
extend its runway safety area (RSA) to the FAA-required 1000 ft. and expand its aircraft parking
apron and hangar space in response to increasing use of the facility by larger aircraft.
Construction alternatives were considered for expanding the RSA to the north and to the south
ends of the runway. The north alternative (preferred) would cross 550 linear ft. of Reedy Branch
Creek, a tributary of Swift Creek in the Neuse River basin, filling approximately 10 acres of cut-
over riparian wetlands that have become essentially marsh. The south alternative would encroach
upon Swift Creek proper, affecting wetlands as shown in Table B-1 although in an unreported
quantity. The listed Dwarf Wedge Mussel occurs in Swift Creek and has been collected in the
vicinity of SR 1501,; approximately 0.5 mile from the project site. Alternative sites considered for
the aircraft parking apron and hangar space construction included an area between existing •
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
'T?.J__t.___. /o10\ 7^.l 1Z,1'7 _..- 701 - C_... /n,n\ 71C 7L Al
Johnston Co. Airport Draft EA 2 5/14/2004
• apron/terminal areas on the western side of the runway (preferred) and an area on the
undeveloped eastern side of the runway. The western site would impact 17.35 acres of cutover
(1995) wetlands that have become fragmented and somewhat isolated hydrologically by road and
airport development. Dense young hardwood saplings are the dominant vegetation on this site
and habitat is provided for raccoon, opossum, muskrat, mink, songbirds, and various reptiles and
amphibians. The eastern apron and hangar site would fill approximately 10 acres of "high quality"
(undefined) wetlands associated with Reedy Branch Creek, requiring construction of.an elevated
access road from US 70 to the site. We were unable to access this area at the time of our site
visit. Proposed mitigative measures include use of a pre-cast arch culvert-bridge having an
approximate 80-ft. span for the Reedy Branch Creek crossing, diversion of stormwater through
sediment basins prior to discharge to Reedy Branch Creek with a goal of zero sediment inputs to
Swift Creek, and construction during the drier summer months. The preferred option for wetland
mitigation would be to use the NC Wetland Restoration Program (WRP), possibly in combination
with onsite preservation or in-basin restoration. Also, the draft EA recommends that the recently
developed guidance memorandum on mitigation of cumulative and secondary impacts (CSI) be
incorporated into project design and construction.
Several areas of the draft EA that we think need additional attention follow:
1. How many acres of wetlands would be impacted by the southern RSA extension
alternative and what is their quality relative to those wetlands impacted by the
preferred alternative?
2. A better description of the "high quality" wetlands on the eastern side of the runway
that would be impacted by the eastern apron and hanger space construction alternative
is needed.
3. Although use of a pre-cast culvert-bridge may avoid direct disturbance to the Reedy
Branch Creek stream bed, the EA needs to better describe how this will occur. Is the
80-ft. span sufficiently wide to allow existing stream meanders to remain as well as
maintain a wildlife travel corridor?
4. The 17.35 acres of cutover wetlands that would be filled by the preferred apron and
hangar construction alternative presently appear to receive significant stormwater
runoff from adjacent impervious surfaces before it enters Swift Creek. Based on the
aerial photos it looks as though proposed construction would encompass the entire
vegetated block, leaving no room for permanent stormwater retention basins. The EA
should contain or be accompanied by an overall Stormwater Management Plan
describing in particular detail how lost water quality protection functions would be
compensated for in this area. The close proximity of wetland loss and impervious
surface construction to Swift Creek and its listed Dwarf Wedge Mussel population
makes this an especially sensitive project sub-site.
I?
Johnston Co. Airport Draft EA 3 5/14/2004
5. Due to the sensitivity of Swift Creek and its Dwarf Wedge Mussel population, we •
would appreciate an opportunity to review the Sediment and Erosion Control Plan for
the project.
6. Wetland mitigation for the project apparently hinges on the WRP receiving payment at
least 18 months in advance of permit issuance to allow time for identification and
implementation of a mitigation project. Is the airport willing and able to do this?
We appreciate the EA's recommendation that project construction and design incorporate
the CSI guidelines and would like to emphasize the need for this to occur due to the presence of
the Dwarf Wedge Mussel in Swift Creek. Thank you for the opportunity to comment on the draft
EA. If you have questions regarding these comments, please call me at [phone].
•
0
•
North Carolina
Michael F, Easley, Govemor
LT _5A
A7i?`A
NCDENR
Department of Environment and
14 May 2004
MEMORANDUM
TO: Melba McGee, Environmental Coordinator
Office of Legislative and Intergovernmental Affairs
FROM: Sarah McRae, Freshwater Ecologist
Natural Heritage Program 41,
William G. Ross Jr., Secretary
SUBJECT: Comments on request for FONSI for the Johnston County Airport Runway Safety
Area Extension and Aircraft Parking Apron Expansion Project
REFERENCE: Project Number 04-0292
The proposed project will cross several streams in Johnston County, impacting rare species and
significant natural heritage areas. A significant natural heritage area is an area of land or water
identified by the NC Natural Heritage Program (NHP) as being important for protection of the
State's biodiversity. Significant natural heritage areas contain one or more Natural Heritage
elements - high-quality or rare natural communities, rare species, and special animal habitats.
The nationally significant natural heritage area potentially impacted by this project is the Swift
Creek Aquatic Habitat which is home to several rare species. Rare aquatic animal species in the
vicinity of the project include: Dwarf wedgemussel (Alasmidonta heterodon), a federal and state
endangered species; Yellow lance (Elliptio lanceolata), a federal species of special concern and
state endangered species; Atlantic pigtoe (Fusconaia masoni), a federal species of special
concern and state endangered species; Roanoke slabshell (Elliptio roanokensis), a state
threatened species; Eastem lampmussel (Lampsilis radiata), a state threatened species; Cape
Fear spike (Elliptio marsupiobesa), a state species of special concern; Pinewoods shiner
(Lythrurus matutinus), a federal species of special concern and state significantly rare species;
and the Carolina madtom (Noturus furiosus), a state species of special concern. Clearly, this
project has the potential to impact several rare species, and the NHP would like to see that all
efforts are taken to minimize and mitigate impacts.
NHP feels that the packet of information for the FONSI is not complete. Since we do not keep
all draft Environmental Assessments that come through the State Clearinghouse, it is vital that
information from previous documents be repeated. In this case, a detailed map is absolutely
necessary. We also need to know if any changes to the draft EA were made, and if so, what they
-tie. In addition, all comments from any reviewing agencies received should be included.
0 None hCaroiina
1601 Mail Service Center, Raleigh, North Carolina 27699-1601 NahrallY
Phone: [phone] FAX: [phone] Intemet: www.enr.state.nc.us/ENRI
An Equal opportunity! Affirmative Action Employer - 50 % Recycled t 10 % Post Consumer Paper
Natural Resources
In earlier correspondence (dated 03 December 2002), NHP recommended that cumulative and ,
secondary impacts be addressed in accordance with the NC Wildlife Resources Commission's
guidance document entitled: "Guidance Memorandum to Address and Mitigate Secondary and
Cumulative Impacts to Aquatic and Terrestrial Wildlife Resources and Water Quality," found on
the web at http://www.ncwildlife.org/pg07,WildlifeSpeciesConlpg7c3_impacts.pdf. Avoidance,
minimization and mitigation measures were not detailed in the FONSI document. We are
especially concerned about erosion control and stormwater control for such a project. The
significance of the Swift Creek basin necessitates maximum efforts to be taken for siltation and
sedimentation prevention during and after construction. In addition, the NHP would like to re-
emphasize the necessity of preservation and restoration mitigation within the Swift Creek
watershed, with riparian habitats receiving the highest priority for protection.
At this point, since we cannot comment on whether or not mitigation measures are adequate,
NHP cannot concur with a finding of no significant impact for this project. We would like to see
a stronger commitment on the part of the airport to include WRC's guidance provisions as part of
their mitigation efforts to offset the impacts of this project.
Please let me know if I can provide more information. The North Carolina Natural Heritage
Program looks forward to a collaborative effort to help protect the State's natural diversity. If I
can be of assistance, please do not hesitate to call me at 919-715-1751.
CC via email: Bennett Wynne, WRC 9
11
-,Y-- co'? e)o - 3) . o C-A
Johnston County Airport
Smithfield, North Carolina
Construction of Runway Safety Area and
Aircraft Apron and Corporate Hangar Area
The North Carolina Department of Transportation
Division of Aviation
State Block Grant Program
Administrative Action
0
Finding of No Significant Impact
Submitted Pursuant to the Provisions of
The National Environmental Policy Act
And
Requirements of the State Aid to Airports Program
Appro„vQd:
11%-)

Richard W. Barkes
Manager Airport System Development
z Z U?--
Date
TABLE OF CONTENTS
Section
A. Preliminary Notes:
B. Purpose And Need:
C. Alternatives
D. Environmental Impact Categories Summary
Noise
Compatible Land Use
Social Impacts .
Induced Socioeconomic Impacts
Air Quality
Water Quality
Section 303 (c) Lands
Historical, Architectural, Archeological, and Cultural Resources
Biotic Communities
Endangered and Threatened Species
Wetlands and Streams
Floodplains
Coastal Zone Management Programs
Coastal Barriers
Wild and Scenic Rivers
Prime or Unique Farmland
Energy Supply and Natural Resources
Light Emissions
Solid Waste Impacts
Construction Impacts
Environmental Justice Impacts
Woodlands
Wildlife Hazard Assessment
E. Environmental Consequences - Other Considerations:
F. Recommendations
Page Number
1
1-3
3-4
4-13
4
4
5
5
5
6-7
7
8
8
8-9
9-10
10
10
11
11
11
11
11
11
12
12 - 13
13
13
13 - 14
14

•
0
A. - Preliminary Notes:
• This environmental document is to be reviewed under the guidelines set forth
under the National Environmental Policy Act (NEPA). The proposed
development of this airport will require that the federal and local governmental
units participate in the funding of this project and the development has been
proposed for federal funding under the State Block Grant Program.
Under the provision of the National Environmental Policy Act (NEPA) and the
North Carolina Environmental Policy Act (NCEPA) no funds may be dispersed
until the funding agency has reviewed the potential environmental impacts of the
proposed projects and has concluded that the impacts, if any, are acceptable. In
the scoping of these projects, Johnston County was required to develop an
Environmental Assessment (EA) meeting the provisions of both the federal and
state environmental regulations. After the EA was circulated and reviewed by
both state and federal agencies, the comments and concerns were addressed
and it has been determined that the environmental impacts are minimal. As a
result of this documentation, a Finding Of No Significant Impact (FONSI) is
appropriate and acceptable in this matter.
Johnston County is located in eastern North Carolina, bounded on the south by
Sampson County, to the west by Harnett County, to the northwest by Wake
County, to the northeast by Nash and Wilson Counties, and to the east by Wayne
• County. The Johnston County Airport (JNX) is located approximately 23 nautical
miles southeast of Raleigh-Durham International Airport (RDU) and
approximately 3 nautical miles northwest of the Town of Smithfield. JNX is a
designated reliever for RDU.
Based aircraft levels at the Johnston County Airport have increased from 49
based aircraft in 1985 to currently over 100 aircraft. Aircraft operations have also
increased from a 1985 level of approximately 28,000 annually to approximately
over 35,000 annually. Operations at the airport have evolved from primarily flight
training to a corporate/business aircraft operations. As a reliever to RDU, JNX is
designed to be a viable alternative to General Aviation (GA) operators in order to
relieve congestion and enhance safety at RDU. Two projects are proposed at
the Johnston County Airport: (1) Extend the Runway Safety Area at the Northern
end to the required 1000 feet.; (2) Develop needed additional Aircraft Parking
Apron and Hangar space.
B. - Purpose and Need:
Increases in based aircraft, total operations, and increased business aircraft
activity at the Johnston County Airport have constrained existing facilities and
reduced operational safety margins in terms of Federal Aviation Administration
airport design standards and guidelines, ground-side circulation, and aircraft
parking.
•
The EA evaluated the extension of the northern Runway Safety Area (RSA)
(Runway end 21) and parking apron expansion. The RSA will be a cleared and •
graded area 1000 ft. long and 500 ft. wide from the approach end of Runway 21.
FAA design criteria requires that the RSA for a Category C-II airport be 1000 ft x
500 ft. The increased RSA provides a safer environment for aircraft and aircraft
occupants in the event of an overshoot, undershoot, or the need to abort a
takeoff roll. Subsequent to a commercial airliner crash in Little Rock, Arkansas,
the FAA reiterated and strengthened its position to not allow non-standard RSA's.
To relieve congestion and increase needed aircraft ramp circulation, the existing
aircraft parking apron is to be extended to the west near SR 1501. Current
efforts to increase apron and taxi space included the removal of several aircraft
tie down positions to allow a wider taxilane area for the business type aircraft to
utilized when taxiing. This provided a temporary solution to taxilane space, but
effectively reduced the amount of aircraft storage space on the apron. The
proposed project entails apron expansion for the purposes of additional aircraft
parking and additional aircraft hangar storage. This will allow the needed 900 sq.
ft per aircraft of space recommended by the FAA.
Runway Safety Area
Actual and projected increases in total operations, as well as increased
operations by the business jet and corporate aircraft at Johnston County Airport
are affecting the capacity and the safety of the airport. Changes to Federal
Aviation Administration requirements have necessitated that an Runway Safety •
Area (RSA) is necessary to provide safety for aviators, passengers, people on
the ground, and to bring the airport in to compliance with current FAA standards
and regulations.
The Runway Safety Area enhances the safety for airplanes that undershoot,
overrun or veer off the runway end. It also provides greater accessibility by fire
fighting and rescue equipment to aircraft utilizing the emergency safety overrun.
The extended runway safety. area is a cleared, drained, graded and seeded area
symmetrically located about the extended runway centerline and adjacent to the
end of the runway safety area. Its length, in this case, is approximately 1,000
feet from the existing runway end, measured along the extended runway
centerline and its width is 500 feet. The extended runway safety area will be
accommodated on existing airport property and no land acquisition is necessary.
. Aircraft Apron and Corporate Hangar Area
Expansion of the terminal area has been a critical need for several years, and
based on the expected continued growth, will become increasingly important.
There is presently no vacant hangar space and apron space is at capacity. Due
to the size of aircraft operating at the airport, the airport has been forced to move
aircraft and remove valuable parking locations to allow aircraft to safely transit
through the terminal area.
C7
• The preferred development area for terminal expansion is on the west side of the
runway, south of and adjacent to the existing terminal area. Additional apron
area was determined as part of the airport's Airport Layout Plan (ALP) Update in
1997.
C. - Alternatives:
The County considered 4 alternatives including a "No Action" alternative in the
development of the EA for the RSA and 3 alternatives and a "No Action"
alternative for the aircraft apron expansion. The EA contained an extensive
discussion of these alternatives and the preferred alternative. The discussion will
not be repeated here other than preferred alternative and "No Action" alternative
for both the RSA and the apron expansion.
The preferred alternative for the RSA project is extending the RSA 1000-feet with
a width of the RSA to 500-feet (Runway 21 End). The potential impacts to Reedy
Branch creek can be minimized by installing an arch culvert or bridge system.
This alternative provides the needed increased utility and safety not found in the
other alternatives, and is economically feasible and meets the project need in
comparison to other alternatives.
The "No Action" option, in the short term, would preserve the existing
• surrounding natural environment. However, the "No Action" alternative is not
consistent with the Federal Aviation Administration requirements, in that the
project is needed to bring the airport's RSA within FAA standards and allow the
airport to fulfill its role as an important reliever to the Raleigh-Durham
International Airport. In light of historic trends in airport activity and projected
increased demand, the airport will need to continue to provide services and this
safety project will become increasingly important. Therefore, the "No Action"
alternative is not a preferred alternative.
The preferred alternative for the apron expansion is to develop apron and parking
area between existing north and south apron areas. The apron area will require
filling of approximately 17.35 acres of isolated and previously forested wetlands.
The alternative is more economically feasible in that it does not require relocating
or constructing a roadway, the purchase of property, or the displacement and
relocation of residents as required by other studied alternatives. Costs
associated with impacts to the isolated wetland area are expected to be less than
those associated with mitigating any impacts to higher quality wetlands.
The "No Action" alternative, in the short term, preserves the existing natural
environment. However, the "No Action" alternative is not consistent with the
ultimate plans for the Smithfield area, or the North Carolina Airport System Plan:
and the airport continuing its role as an important reliever to the Raleigh-Durham
is International Airport. The Alternative does not improve the safety or utility of the
airport.
In view of the continuing and projected growth at the Johnston County Airport,
providing the orderly development of facilities to accommodate this activity is •
paramount to the economic vitality of the area and the safety of the airport,
aircraft occupants, and persons on and near the airport. The "No Action"
alternative does not meet the Purpose and Need elements for the Project and it
is not a preferred alternative.
In order to develop the studied projects, no other additional projects will be
necessary except those needed to mitigate any adverse environmental effects
that were identified in the EA. All of the proposed development will occur on
property currently owned and controlled by the Airport Authority. The primary
concerns recognized in the EA of wetland and stream impacts and potential
endangered species impacts are addressed in later portions of this FONSI.
D. - Environmental Impact Categories Summer:
Noise:
The projects discussed are not going to alter any airport noise patterns that exist
or that have been previously documented. Further, FAA Handbook 5050.4A
states that "no noise analysis is needed for proposals involving design Group I
and II airplanes on utility or transport type airports whose forecast operations in
the period covered by the environmental assessment do not exceed 90,000
annual propeller operations, or 700 annual adjusted jet operations." •
Forecasts presented in the EA depict forecast jet, and overall operations, for the
airport. Johnston County is not expected to exceed 90,000 annual operations,
nor is it expected to exceed over 700 jet operations. The jet fleet operations at
Johnston County Airport must be adjusted for Cessna Citation 500 and Learjet
35, or equivalent aircraft, operations. According to FAA Handbook 5050.4A,
these two aircraft are quieter than many propeller driven aircraft and are to be
counted as propeller operations. Once jet operations for the airport are adjusted
by type aircraft, "adjusted" jet operations are below the requirements for a noise
analysis. A detailed discussion of noise, and the potential related impacts took
place in the EA and will not be repeated here. Therefore, it may be assumed that
there will be no significant noise impacts.
Compatible Land Use:
The compatibility of existing and planned land uses in the vicinity of an airport is
usually associated with two factors: a) the extent of noise impacts related to the
airport and related development and, b) consistency with local land use plans
and development policies. The lack of noise impacts as previously discussed in
this document and none of the planned land uses for any of the alternatives are
incompatible with planned land uses as described in the Johnston County land
use guidance and zoning regulations. It can be concluded that there are no
significant compatible land use impacts. •
Social Impacts:
• A principal social impact considered here is the potential relocations or other
community disruption that may be caused by the proposed activities. The
proposed extension of the runway safety area and terminal area expansions will
not involve the need to relocate any residence or business; divide or disrupt
established communities; disrupt orderly, planned development; or create an
appreciable change in employment. There will be no negative defined social
impacts as a result of the apron expansion and RSA extension project.
Therefore, no further analysis is needed.
Induced Socioeconomic Impacts:
This category is primarily concerned with induced or secondary impacts on the
surrounding communities. Induced impacts are usually not considered significant
unless there are significant impacts in other categories especially noise, land use
or direct social impacts. Induced socioeconomic impacts of airport development
normally involve shifts in population, increased public service use, or changes in
the local business and economic climate. The positive economic impacts of the
airport have been substantial, and the proposed actions are expected to extend
these positive impacts to the local community and region.
The RSA and terminal area expansion would be expected to have positive
• induced socioeconomic impacts due to the opportunity for the airport to serve
existing corporate users more efficiently and safely. Based on the previous
discussions here and in the EA there are not any anticipated negative impacts
that will require further analysis in this area
Air Quality:
Assessment of air quality impact from the volume of aircraft emissions by aircraft
type predicted to use Johnston County Airport is not necessary in accordance
with FAA Order 5050.4A, "Airport Environmental Handbook", Chapter 5,
paragraph 47e(5)(c)1. This is predicated on the fact that the airport is classified
"general aviation" as opposed to "commercial service", with forecasts of 42,600
operations in the twenty-year scenario. A level of 180,000 total operations is
required before an air quality analysis must be performed for this category of
airport. In addition, North Carolina requires an air quality permit for the
construction and modification of airport facilities designed to have at least
100,000 annual aircraft operations. The Johnston County Airport is below this
threshold for existing and projected operations. Since no further analysis is
needed it can be determined that there is not any significant impact. Any open
burning that occurs during construction will adhere to all federal, state, and local
regulations
•
5
Water Quality: •
A detailed discussion of the water quality effects was presented in the previously
circulated EA, a portion of that discussion will be repeated here for consistency.
Johnston County Airport is within the Neuse River Basin (NRB) and identified as
an area of environmental significance. North Carolina has established
Regulations that define how resources in the NRB are to be protected and
preserved. North Carolina Administrative Code 26.0233 provides guidance on
the type of development that can take place within the NRB. Airport
development impacting greater than 150 linear feet of stream or more than one-
third (1/3) an acre of riparian buffer are allowable with mitigation. This is the
pretext under which, the proposed projects presented in the EA were prepared
and subsequent design of the project will occur.
Runway Safety Area
The Runway Safety Area (RSA) project is proposed to be constructed on the
north end of the runway extending approximately 1,000 feet from the runway end
and 500 feet wide. Construction of the RSA will impact approximately 550 linear
feet of the Reedy Branch creek. The RSA will cross Reedy Branch and will
require that a culvert or culverts, with an approximate 80-ft.span, be included as
an integral part of the construction. The proposed culvert will likely be pre-cast
concrete arch culvert-bridge. Use of the precast arch culvert-bridge minimizes
streambed impacts. The culvert is supported by footings on banks of the •
culverted stream and therefore minimizes streambed disturbance. Culverting the
stream will allow continued flow of the stream through its natural streambed as
well as construction of a properly graded Runway Safety Area.
Construction of the Runway Safety Area will require that underbrush be removed
from the construction area. Approximately 150,000 cubic yards of fill material will
be placed, compacted, and turfed to create the Runway Safety Area. The
proposed construction area has been previously cleared so clearing will not be
extensive: This project has not gone to the design phase and specific design
data will be based upon State and Local permitting requirements, as well as FAA
criteria.
Borrow area for the fill material is from an existing stockpile of material and is
located adjacent to and east of the north end of the runway. It consists of an
upland area, on airport property and poses no threat to Reedy Branch since
approved erosion control measures will be implemented.
Aircraft Apron and Corporate Hangar Area
Construction of the proposed apron/hangar area which is located on the west
side of the runway, between the north and south hangar areas, will require the
clearing of underbrush and filling an isolated palustrine wetland of about 17.35
acres. The delineated wetland area was clear-cut of trees prior to 1985 and is
now comprised primarily of dense growth young hardwoods. Mitigation efforts for •
losses to any wetlands are addressed in the wetland portion of this document.
6
• Fill material will be obtained from an adjacent stockpile and from a stockpile east
of the runway near the existing wind cone. Hauling will be by truck along a haul
route to be established along the existing runway safety area. The construction
site will be cleared and grubbed and stripped of all vegetation and organic
matter. Debris will be burned if permitted/allowed by local authorities, otherwise
it will be hauled off-site for disposal by the contractor. Drainage will be by sheet
flow and open ditches where possible.
In both cases actual design of sediment control measures will be developed
during the design phase of the proposed projects. Proper controls and mitigation
measures will avoid impacts to water quality during construction. During.
construction, water pollution control will take place in accordance with FAA AC
150/5370-10A, Standards for Specifying Construction of Airports, North Carolina
statues, local requirements, and any requirements associated with construction
in the Neuse River Basin. Additionally, the North Carolina Wildlife Resources
Commission has developed Best Management Practices (BMP) measures to
address Cumulative and Secondary Impacts (CSI) associated with projects and
to mitigate impacts to fish and wildlife both generally and where Federally
Endangered species exist. The CSI measures will be made part of any design
and construction of the projects.
Since the airport already has implemented procedures for handling fuel/oil spills,
• aircraft washing waste water, and petroleum product disposal which have proven
to be effective, and since the proposed projects will do little if anything to change
the character of these procedures. A water quality permit from the N.C. Division
of Water Quality will be required for construction. The proposed projects will be
constructed following N.C. Stormwater Regulations. A sedimentation and
erosion control permit shall be obtained prior to commencing any construction.
An extensive discussion of this topic was presented in the previously circulated
EA and it can be concluded that the potential impacts on water quality will be
minimized and mitigated. By utilizing avoidance, minimization, best management
practices for stormwater management and mitigation, the proposed construction
is not anticipated to have significant negative impacts on water quality issues.
Section 303(c) Lands:
Section 303(c), Title 49 USC, formerly known as Section 4(0 of the Department
of Transportation Act, states that a project requiring the use of any publicly
owned land from a public park, recreation area, or from a historic site of national,
state, or local significance shall not be approved unless there is no feasible
alternative to the use of such land. No public parks, recreation areas, or historic
sites are located in the project areas for any of alternatives. Therefore, no
significant impacts are anticipated for this topic.
LI
7
Historic, Architectural, Archeological, and Cultural Resources: •
Based on consultation with the N.C. Department of Cultural Resources, no
historic, architectural, archeological, or cultural resources are known to exist in
the project areas for any of the proposed construction. This information was
detailed in the previously circulated EA. Therefore, no significant impacts are
anticipated for this topic.
Biotic Communities:
The effects of the proposed action on wetlands and threatened and endangered
species are discussed elsewhere in this document.
If construction will cause only a minor permanent alteration of existing habitat, it
may be assumed that there will be no significant impacts to biotic communities,
particularly if the habitats affected represent a small percentage of the area's
inventory and support a limited variety or number of common wildlife species.
The majority of the biotic communities affected by construction of both the RSA
and terminal area apron are in disturbed wetland areas and some habitat could
be lost for game and non-game species indigenous to the area. However,
impacts to species would not be significant because of the large area of
undeveloped riparian wetland immediately adjacent to and south of the airport
that is available for animal migration and relocation. Therefore, it may be
assumed that there will be no significant impacts to biotic communities.
Endangered and Threatened Species:
The Endangered Species Act requires each federal agency to ensure that any
action by that agency is not likely to jeopardize the continued existence of any
threatened or endangered species, or destroy, or adversely modify critical habitat
for those species. A detailed discussion of the endangered species was
presented in the previously circulated EA and will not be repeated.
As a result of previous investigations conducted at the airport it is known that
endangered and threatened species are present in the area. Thus, in 2002, Mr.
John Alderman staff biologist for the North Carolina Wildlife Resources
Commission was contacted. It was Mr. Alderman's opinion that performing
another costly survey for the Dwarf Wedge Mussel should not be necessary. He
confirmed that populations of the species still existed in the Swift Creek area. He
suggested that any Federal and State guidelines would need to be followed to
prevent any potential harmful effects of erosion and sedimentation during
construction.
In keeping with these findings, all construction efforts for the proposed projects
will be designed to produce no undue sediment/siltation into Swift Creek. DENR,
and other State and Local regulatory agencies, prior to implementation will •
approve control methods. Additionally, The North Carolina Wildlife Resources
Commission has developed a set of criteria that could be followed to address and
• mitigate the secondary and cumulative impacts of projects in area near
endangered or threatened fresh water species. These guidelines will be utilized
in developing siltation, sedimentation, and erosion control plans. A complete and
thorough plan, once the project moves to the design phase, will alleviate or
eliminate any potential adverse impacts to the Dwarf Wedge Mussel population.
Therefore with these conditions, no significant impacts are anticipated for this
topic.
Wetlands and Streams:
Wetland habitats are defined as those areas that are inundated by water with
sufficient frequency and duration to support vegetation that is tolerant of
saturated soil conditions. The U.S. Army Corps of Engineers (US Army Corps of
Engineers Wetland Delineation Manual) utilizes specific hydrologic, soil and
vegetation criteria in establishing the boundary of wetlands within their
jurisdiction. A detailed discussion of the impacts took place in the previously
circulated EA and only portions of it will be repeated here.
The wetland/stream impacts associated with Runway Safety Area (RSA) consist
of approximately 10 acres of primarily freshwater marsh with a few scattered
shrubs and the channel of Reedy Branch. The 20-foot wide channel of Reedy
• Branch runs along the toe of the slope from the existing runway (i.e. nearly all of
the wetland impacts would be on the north side of the creek channel).
Beavers, creating a pooled area of water that attracts waterfowl (a hazard to
aircraft) have dammed the channel several times in the past. Reedy Branch is
classified as C NSW (DWQ water quality classification). Although Reedy Branch
is not one of DWQ's regular sample sites for bioclassification, it drains into Swift
Creek downstream of the airport. During a previous period of construction (1992-
94) on the south end of the runway, the bioclassification of Swift Creek improved
from "Good-Fair" in 1991 to "Good" in 1995 and 2000. Apparently, these
previous construction activities adjacent to Swift Creek resulted in little, if any,
negative impact to the water quality.
The approximate 17.35 acre area proposed for parking/hangar facilities was a
marginal wetland dominated by a mature, mixed Pine-Hardwood forest prior to
1985. The area was clear-cut in 1985 and is now comprised of young
hardwoods (10-20 feet tall) with a few pine and a dense vine component
Recognizing the need to mitigate any unavoidable wetland losses, the Airport
Authority authorized a preliminary search for potential off-site mitigation areas.
This search was limited in scope and not intended to be all-inclusive, but rather
provide evidence of the existence of suitable sites in the vicinity of the airport.
Recent emphasis on water quality concerns in the Neuse River watershed, and
more specifically Swift Creek, would indicate a need to focus mitigation efforts
within the Swift Creek watershed, if possible.
The Airport Authority proposes several options for mitigating unavoidable •
wetland losses. The North Carolina Wetland Restoration Program (NCWRP) is
one of these options. Dr. Leon Jernigan (Environmental Consultant for the
Airport Authority) has already met with NCWRP staff to familiarize them with the
proposed project and to determine the procedure for using the NCWRP. A
second option would be for the Airport Authority to find a suitable mitigation site
and prepare a mitigation plan for restoration and monitoring. A third option
involves preserving approximately 128 acres of on-site palustrine forested
wetland via a conservation easement. This option alone would not be
satisfactory compensatory mitigation but would preserve some riparian and non-
riparian habitat along Swift Creek and Reedy Branch and could be used in
conjunction with either of the first two options to reduce the mitigation ratio.
The preferred option at this time would be to use the NCWRP with or without a
conservation easement on the on-site preservation area. The project is eligible
for inclusion in the NCWRP and a letter from the program was included in the
EA. A more detailed mitigation plan will be developed upon issuance of
appropriate permits and certifications.
Therefore with approved mitigation, no significant impacts are anticipated for this
topic.
Floodplains: 0
Floodplains are defined in Executive Order 11988, Floodplain Management, as
the lowland and relatively flat area adjoining inland and coastal waters including
flood prone areas of offshore islands, floodplain areas of offshore islands,
including at a minimum, "that area subject to a one percent or greater chance of
flooding in any given year" or the area that would be inundated by a 100-year
flood.
Based on consultation with the Army Corps of Engineers and examination of the
applicable Flood Insurance Rate Map, none of the construction for the proposed
projects will occur within the 100 year flood boundary, and none of the projects
are expected to directly or indirectly support secondary development within a
base floodplain (i.e., 100 year flood area). Therefore, it may be assumed that
there are no floodplain impacts from any of the alternatives.
Coastal Zone Management Programs:
Johnston County is not one of the twenty counties regulated by the Coastal
Resources Commission (CRC). Therefore the State's Coastal Area
Management Act (CAMA) does not apply to this project.
•
10
• Coastal Barriers:
Johnston County is not located in the Coastal Barriers Resource System (CBRS)
or an Otherwise Protected Area (OPA). Therefore the Coastal Barrier Resource
Act (CBRA) does not apply to this project.
Wild and Scenic Rivers:
The Wild and Scenic Rivers Act, PL 90-542, as amended, describes those river
area eligible to be included on a system afforded protection under the act. There
is no wild and scenic river in the project area. Therefore, there are no anticipated
impacts from any of the proposed construction to any federally designated wild
and scenic rivers.
Prime or Unique Farmlands:
The proposed projects do not involve the purchase of or construction on Prime
and Unique farmland under the Farmland Protection Policy Act. Therefore, it
may be assumed there is no significant impact to farmland caused by the
proposed project.
Energy Supply and Natural Resources:
Based on definitions given in FAA Order 5050.4A Airport Environmental
Handbook, the proposed action will not have significant demands on energy
supply or natural resources. It can thus be concluded that there will not be any
significant impact and no further action is necessary.
Light Emissions:
The FAA requires the airport sponsor to consider the extent to which any lighting
associated with an airport action will create an annoyance among people in
surrounding areas. The types of lighting being installed, location, and method of
use for the lighting should not have any significant impact on residences in the
vicinity of the airport. If an annoyance lighting problem should develop from the
new lighting installed then measures can be taken to reduce or eliminate the
problem. There should not be a significant impact on this subject.
Solid Waste Impacts:
There are not any solid waste impacts known or anticipated due to the
construction or operation of this project. In addition there are not any known
impacts to existing or proposed solid waste facilities in the area.
•
ii
Construction Impacts: .
The types of impacts to be considered primarily are related to noise, air, water
and flora and fauna impacts. There was a detailed discussion of the potential
construction impacts and possible solutions in the EA. Basically, there are not
any anticipated noise impacts that are not expected to unduly impact local
residences or businesses and the other impacts have been discussed in other
areas of this document. In general all applicable permits, (such as sediment and
erosion control plans, and burning permits) and good construction techniques
and best management practices (like those outlined in FAA Order 15015370 - 10
Standards for Specifying Construction of Airports) should alleviate any potential
impacts in this subject.
Environmental Justice Impacts:
On February 11, 1994, President Clinton signed the Executive Order 12898,
Federal Actions to Address Environmental Justice in Minority Populations and
Low-Income Populations." A Presidential Memorandum directed to the heads of
all Departments and Agencies accompanied the Executive Order 12898. The
Memorandum states "each Federal agency shall analyze the environmental
effects, including human health, economic and social effects, of Federal actions,
including effects on minority communities and low-income communities, when
such analysis is required by NEPA." Both the Federal Aviation Administration
(FAA) and the Federal Highway Administration (FHWA) are divisions of the U.S. •
Department of Transportation and are included in the DOT Order 5610.2 "Actions
to Address Environmental Justice in Minority Populations and Low-income
Populations" (62 Federal Register 18377 et seq. (April 15, 1997). On December
2, 1998 the FHWA issued Order 6640.23 that establishes policies and
procedures for the agency to use in complying with Executive Order 12898.
While the DOT and FHWA policies and procedures require analysis of
disproportionate impacts, they do not define thresholds for the analysis of
Environmental Justice (EJ) impacts.
The Environmental Protection Agency (EPA) has established thresholds for the
determination of EJ impacts. In April 1999, the Environmental Protection Agency
(EPA) Region 4, which has jurisdiction for North Carolina, released its report
entitled Interim Policy to Identify and Address Potential Environmental Justice
Areas. This document defines environmental justice as "the fair treatment of
people of all races, cultures, incomes, and educational levels with respect to the
development and enforcement of environmental laws, regulations, and policies.
Fair treatment implies that no population should be forced to shoulder a
disproportionate share of exposure to the negative effects of pollution due to the
lack of political or economic strength." The EPA Region 4 Interim Policy Report
recommends relative thresholds be used as benchmarks to determine whether a
substantial low-income and minority population would be adversely impacted.
The relative threshold is determined as 1.2 times the state average of minority
and low-income population. •
12
The minority percentages for the EA study area were compared to the minority
• thresholds for Johnston County and the State of North Carolina in order to
determine whether there was the potential for disproportionate impacts. All of the
EA study area minority populations are below the state thresholds, and therefore
there is no disproportionate impact on these populations from any of the
alternatives. Based on information contained in the EA no disproportionate
impacts to low income populations are expected from any of the alternatives.
Therefore, no significant impacts are anticipated for this topic.
Woodlands
No woodlands will be impacted by the proposed airport projects. Prior to
construction of the airport in 1985 portions of, now, airport property was cleared
of trees in an effort to farm the land. The project area for the Corporate Hanger
Area was cleared during those farming operations and some new growth in the
proposed hangar construction area has occurred since the clearing operation.
The new growth is in an isolated wetlands pocket. Further assessment of the
area is discussed in the wetlands portions of this section.
Wildlife Hazard Assessment
The US Department of Agriculture conducted an assessment of potential wildlife
hazards at the airport. Results of the assessment were in the previously
• circulated EA. FAA Advisory Circular Number 150/5200-33 recommends that
any land uses that are incompatible with safe airport operations including
wetlands be located a minimum of 10,000 feet from an airport. Wetland and
stream areas at Johnston County Airport are within hundreds of feet from the
airport runway. During the USDA assessment wood ducks were sited on airport
property. Wood ducks along with other birds of prey, waterfowl, and other
species pose a significant threat to the safe operation of aircraft while aircraft are
in the air or maneuvering on the ground. Reduction in the amount of close-
proximity wetlands resulting from the proposed project will increase the benefit
safety of the airport and aircraft passengers.
E. - Environmental Consequences - Other Considerations:
The EA has addressed all the anticipated specific environmental impacts for this
project in both the construction phase and ultimate utilization of the project.
There were not any controversial issues raised during the EA development. The
project planning and subsequent design will take into account all anticipated
environmental impacts and make great efforts to avoid and minimize them. The
potential impacts to wetlands, endangered species, and general water quality all
appear to be able to be mitigated. The proposed actions appear to be consistent
with all federal, state, and local requirements for the surrounding area.
As outlined in FAA Order 5050.4A Airport Environmental Handbook, Johnston
• County provided opportunity for the general public to comment on the proposed
13
projects contained in the EA. They received no request to conduct a public
hearing, thus no such hearing was held. •
In conclusion, the EA has shown that the proposed project can be completed
with no significant impact on the environment. All necessary permits are
expected to be obtained without incident and any additional mitigation measures
that may be necessary will be completed prior to, or when applicable in the
construction process.
F. - Recommendations:
After careful review of the Environmental Assessment and comments and
response from the coordination process, and the facts contained herein, the
undersigned has found that the proposed project is consistent with the objectives
of the national and state environmental policies. The objectives and polices are
set forth in the National Environmental Policy Act and the North Carolina
Environmental Policy Act, and the project will not significantly affect the quality of
human environment or otherwise include any significant condition requiring
further consultation with any federal, state, or local review agencies with the
following exceptions which shall be made a condition of the environmental
approval of this project:
1. Johnston County, or its appointed representative shall obtain any and all
federal, state, or local permits (such as burning, sediment and erosion
control, NPDES general construction permit, 401 WQC, 404, etc.,) prior •
to construction of this project.
2. Any mitigation that might prove necessary shall be developed and
implemented prior to, or during the construction phase of this project.
Such mitigation may include but will not be limited to wetlands mitigation.
3. To the extent practicable every effort will be made to avoid and minimize
environmental impacts in the development of this project. The
development of this project will utilize best management practices and
good construction techniques.
4. North Carolina Wildlife Resources Commission Best Management
Practices (BMP) and CSI measures will be made part of any design and
construction of the projects.
Therefore it is the undersigned's recommendation that the project be given a
Finding Of No Significant Impact (FONSI) under the provisions set forth by the
State of North Carolina Block Grant Program, and the National Environmental
Policy Act.
Richard W. Barkes Date
Manager, Airport System Development Section •
Division of Aviation, North Carolina Department of Transportation
14
W?WK FA
community Infrastructure consultants
May 23, 2005
Jean Manuele, USACE
Sam Aghiminien, NCDWQ
Debbie Edwards, NCDWQ
Dale Suiter, USFWS
Mark Bowers, USFWS
John Ellis, USFWS
Shari Bryant, NCWRC
Sent via electronic mail
RE: Pre Application Inter Agency Meeting for Johnston County Airport
Extended Runway Safety Area and Apron/Aircraft Parking Hangar Area Expansion
404 Permit and 401 Certification
0 Dear Attendees:
Thank you for making time in your schedule to meet on Wednesday, May 25. This letter provides
background information on the project and directions to the airport site.
Project Background
.bhnston County Airport Authority (Authority) proposes two projects at bhnston County Airport (JNX):
(1) Extend the Runway Safety Area at the northern end to the required 1000 feet (from the existing
300 feet); and (2) Develop needed additional Aircraft Parking Apron and Hangar Area. These
projects were documented in an Environmental Assessment (FA) submitted to NCDOT Department of
Aviation in September 2003. A FONSI was received in November 2003.
JNX is a designated reliever airport for RDU. Based aircraft levels at JNX have increased from 49 in
1985 to currently over 100 based aircraft. Aircraft operations have also increased from a 1985 level of
approximately 28,000 operations annually to approximately over 35,000 operations annually.
Operations at the Airport have evolved from primarily flight training to a corporate/business aircraft
operation. As a reliever to RDU, NX is designed to be a viable alternative to General Aviation (GA)
operators in order to relieve congestion and enhance safety at RDU.
Extended Runway Safety Area
The extended runway safety area (ERSA) is a grassed area centered on the runway centerline that
extends from the runway end. FAA design criteria require that the ERS4 for a Category C-II airport be
0
r?
1000 ft. long and 500 ft. wide. Its purpose is to support aircraft that may overrun or undershoot the
runway without injury to the aircraft occupants or major damage to the aircraft. Existing ERSA
dimensions for the north end of the runway is approximately 300 ft. long by 300 ft. wide. ERSAs are
required by the FAA. JNX is currently operating under a deviation from standard RSA criteria that
make available only portions of the runway length.
Five alternatives were evaluated for the ERSA. The preferred ERSA alternative will require crossing
approximately 550 feet of Reedy Branch and filling approximately seven acres of riparian wetlands.
This was the only alternative that satisfied the purpose and need of the project.
Aircraft Parking Apron and Hangar Area Expansion
Expansion of the terminal area has been critical for several years and will become increasingly
important based on expected continued growth. There is presently no vacant hangar or apron space.
To relieve congestion and increase needed aircraft ramp circulation, the Authority proposes to expand
the aircraft parking apron and hangar area. Current efforts to increase apron and taxi space included
the removal of several aircraft tie-down positions; effectively reducing the amount of aircraft storage
space on the apron. The proposed project entails apron expansion for the purposes of additional
aircraft parking and additional hangar storage. This will allow the 900 ft2 per aircraft recommended by
the FAA. 10
Four apron and hangar area alternatives were investigated. The preferred alternative will provide
needed space for approximately 150 aircraft and provide needed aircraft movement area. The
proposed Apron and Hangar Area is located between existing aircraft parking areas. Alternative A is in
a non-riparian wetland area that was previously disturbed in 1995. This alternative requires filling
approximately 17 acres of non-riparian wetland. This was the only alternative that satisfied the
purpose and need of the project and did not involve additional stream crossings, residential
relocations, or significant road re-alignments.
Threatened and Endangered Species
Investigations were completed in 1989 to determine if any protected species or critical habitat were
present on the airport property. Species listed for Johnston County are in the table below.
c/fe/97084/5-7asbil.doc 0
•
Table 1. Federally listed threatened and endangered species in Johnston County
Common Name Scientific Name Status Habitat Present
Vertebrates
Red-cockaded
woodpecker Picoides borealis Endangered No
Invertebrates
Dwarf wedge mussel Alasmidonta heterodon Endangered Yes
Tar spinymussel Elliptio steinstansana Endangered No
Vascular Plants
Michaux's sumac Rhus michauxii Endangered* No
The only species with a propensity for occurring in the project area is the dwarf wedge mussel (DWM).
A 1991 mussel in Swift Creek in the vicinity of JNX documented a dwarf wedge mussel population. It
is understood that Swift Creek contains DWM habitat and supports active DWM populations. Reedy
Branch in the vicinity of the proposed ERSA is a low gradient stream with a series of beaver
impoundments. The lack of free flowing stream segments may result in degraded DWM habitat.
• As mitigative measures for possible impacts to DWM the ERSA design will incorporate an arch-span
culvert to eliminate direct impacts to the stream channel. The span will be wide enough to
accommodate channel meanders. Additionally, all construction efforts will be designed to produce
zero sedimentation/siltation into Swift Creek or its tributaries. The erosion and sediment control plans
will be made available to all interested agencies for approval.
Impacts to Jurisdictional Areas
Potential impacts to jurisdictional areas are detailed in Table 2 below.
Table 2. Jurisdictional Impact Summary
Site Jurisdictional Impacts
Stream Riparian
Wetland Non-Riparian
Wetland Buffer
Zone 1 Buffer
Zone 2
ERSA 550 7.61 33,000 ft` 22,000 ft`
Apron/Hangar Area 17.35
Totals: 550 7.61 17.35 33,000 ftZ 22,000 ftZ
Streams: The ERSA would result in approximately 550 linear feet of stream impact. This impact
is unavoidable due to the nature of the ERSA. Reedy Branch in the vicinity of the proposed ERSA is a
low gradient stream with a series of beaver impoundments. No free flowing reaches are proposed to
be impacted. The stream channel is approximately 20 feet wide and 2-3 feet deep. The beaver dams
have flooded the channel and silt and sediment deposits have accumulated in the channel. The
0 c/fe/97084/5-7asbil.doc
•
proposed ERSq design incorporates an arch-span culvert design to eliminate direct impacts to the
stream channel. The crossing span will be approximately 80 feet wide to accommodate channel
meanders. Relocating the channel around the RSA was investigated and determined to be unfeasible.
The relocated channel would be approximately three times the length of the existing channel; resulting
in an exceptionally low stream gradient. Also, extensive cut would be needed to construct the
channel around the northeast corner of the RSA.
There are no stream impacts associated with the proposed apron and hangar area expansion.
Wetlands: Construction of the proposed RSA would result in approximately 7.61 acres of riparian
wetland impact. These wetlands are primarily freshwater marsh with scattered shrubs. The area is
inundated by a series of beaver impoundments. Dominant species include soft rush, smartweed,
cattail, woolgrass, and sedges. The shrubs include black willow, tag alder, buttonbush, river birch, and
red maple. The shrubs are periodically cut to maintain FAA clearance restrictions.
Construction of the proposed Apron and Hangar Area would result in approximately 17.35 acres of
non-riparian wetland impacts. The impacted wetland is a palustrine scrub-shrub wetland that was
logged in 1995. Dominant species include red maple, sweetgum, loblolly pine, river birch, and black
willow.
•
Mitigation: FAA guidance does not allow on-site wetland mitigation. Also, no suitable on-site
stream mitigation is available. The Authority conducted a mitigation site search in 1995 that did not
identify any suitable wetland mitigation areas. The Authority proposes utilizing a combination of on-
site preservation and the NC EEP in-lieu fee program to mitigate for the proposed jurisdictional
impacts. EEP is willing to accept payment for impacts associated with the JNX project.
The onsite preservation area is a large stream and wetland system located to the east of the runway.
The area is roughly bounded by Reedy Branch, Swift Creek, cleared runway area, and the existing
mitigation area. This includes approximately 100 acres of riparian wetland and 4,000 linear feet of
stream channel.
c/fe/9708415-7asbil.doc 0

•
Directions to Meeting
The pre-application meeting will be held at 9:00 am on Wednesday, May 25. The meeting location
will be the bhnston County Airport terminal/offices located at 3149 Swift Creek Road, Smithfield.
Swift Creek Road is accessed from US 70 Business approximately 3.5 miles east of the US 70 bypass
split and 3.25 miles west of NC 210. The airport terminal is located approximately 0.7 miles south of
US 70 Business on the left.
If you have any questions prior to the pre-application meeting please call me (office-919-782-0495,
cell-919-022-3845).
Sincerely,
W.K. Dickson & Co., Inc.
Daniel Ingram
Staff Scientist
cc: Carrol Triplett, Stephen Walker, Michael Ellison, Ray Blackmon
Attachments (location map)
3101 John Humphries Wynd
Raleigh; NC 27612
Tel. [phone]
Fax [phone]
www.wkdickson.com
c/fe/97084/5-7as bi I .d oc
North Carolina • South Carolina « Georgia « Florida
•
M EM O R A N D U M
P'%WK
DICKSON
community infrastructure consultants
3101 John Humphries Wynd Raleigh, North Carolina 27612 919.782.0495 tel. [phone] fax
TO: 40391.00.CA File
FROM: Daniel Ingram
DATE: 26 May 2005
RE: Johnston County Airport pre-application meeting
summary of comments
Attendees:
Jean Manuele, USACE
Dale Suiter, USFWS
• Mark Bowers, USFWS
Debbie Edwards, NCDWQ
Sam Aghimien, NCDWQ
Shari Bryant, NCWRC
Chandra Coats, Johnston County Stormwater
Ray Blackmon, Johnston County Airport
Steven Walker, WK Dickson
Jim Jles, WK Dickson
Michael Ellison, WK Dickson
Daniel Ingram, WK Dickson
The meeting began at 9:00 am at the bhnston County Airport. Steve provided background on
the airport operations and need for the ERSA and Apron/Hangar Area. I then explained the
alternatives for each project area, design considerations, and anticipated jurisdictional impacts.
The meeting was opened to comments.
Debbie Edwards stated that since the project is in a nutrient sensitive waters watershed that
stormwater controls must include water quality treatment (i.e. constructed wetland). Debbie
also stated that the ERSA will likley be considered impervious surface due to compacted soil
and will require stormwater controls.
Dale Suiter asked about potential mussel habitat in Reedy Branch. I stated it was a series of
beaver impoundments from the ERSA downstream to Sniift Creek and was not high quality
mussel habitat. Dale concurred and felt that a mussel survey would likely not be required.
Dale stated that the sediment and erosion control plan should be included in the permit
• application to expedite the review process.
.ban Manuele asked that a geotechnical investigation be conducted to determine if a bottomless
culvert is feasible over Reedy Branch prior to submitting the permitban stated that the
alternatives analysis in the permit application should be detailed and include economic impacts
as well asjurisdictinal impacts. She wants to see real numbers. ban expressed that if airport
operations continue to increase then additional expansion may be necessary in the future,
resulting in opting for one of the previously rejected alternatives. If that is anticipated then she
wondered why the best altnerative now is to completely destroy a natural wetland system.
Steve replied that the airport does not have a long term growth strategy and is guided by the
priciple of serving the community interests. Sam Aghimien shared ban's view that the
alternatives analysis should be more rigorous. Jean also stated that the proposed preservation
area to the southeast of the runway likely contains upland areas. The current JD expires in April
2006 and if the permit is not issued prior to that she will request we re-delineate that area to get
an accurate preservation figure (delaying the permit). Additionally, the mitigation ratio for
preservation could be increased if we redelineate now. Jean suggested we explore potential
enhancement mitigation options in the beaver impacted forested areas of Reedy Branch (i.e.
remove dams and replant trees).
In the field Dale Suiter agreed that Reedy Branch in the vicinity of the ERSA is not suitable
mussel habitat. Dale inquired about the downstream portions of Reedy Branch. I replied that
there are more beaver dams located along Reedy Branch all the way to Shrift Creek. If suitable
mussel habitat exists along Reedy Branch downstream of the ERSA then a mussel survey may be
required to determine potential effects to dwarf wedge mussel.
Jean stated that typically a bottomless culvert is considered to be "no impact" to a stream if no
other waters are impacted. In this situation the bottomless culvert will span the creek channel
but there will still be significant wetland impacts. The flooded nature of the stream system also
makes it difficult to define the stream channel. The stream impacts may be lowered or the .
mitigation ratios may be lowered as a result of the bottomless culvert design.
The group then walked through the wetland area located east of the runway to determine the
jurisdictional status of the area and survey Reedy Branch in that area. Jean again stated that she
felt the area should be delineated with a "sharper pencil" to get an accurate view of the
preservation area and to fully investigate other alternatives. We discussed utilizing the existing
pond for stormwater control; ban stated that would constitute an impact to waters of the U.S
since the USACE loses jurisdiction over stormwater ponds. Open water impacts may not
require mitigation. Due to time constraints we did not reach Reedy Branch.
I spoke briefly with Debbie Edwards regarding the south runway tree clearing. She stated
strongly that those impacts need to be included in the permit application (join the projects).
Additionally, she felt that the Airport should limit the clearing in the Swift Creek buffer to
"topping" trees that penetrate the 50:1 slope.
Jean, Debbie, and Dale would like to re-visit the site after the revised delineation is complete.
Debbie needs to review a mapped stream in the proposed hangar area to determine if it is
subject to buffer rules. Dale would like to survey more of Reedy Branch for mussel habitat.
Jean stated that she will "fast track" this project and make time to review the new delineation as
soon as possible. Jean thanked us for getting everyone together to provide input at one time.
0
Page 1 of 1
Daniel Ingram
• From: Shari Bryant (bryants5@earthlink. net]
Sent: Wednesday, June 15, 2005 9:41 AM
To: 'Manuele, Jean; Daniel Ingram
Cc: 'Suiter, Dale'; 'Bowers, Mark'; 'Everhart, Steve'
Subject: 404 - Johnston County Airport
Attachments: EAJohnstonCo.AirportExpansion.doc; EAJohnstonCo,AirportExpansionFONSI.doc
Jean,
As we discussed at the on site meeting, here is a list of WRC concerns.
WRC commented on the draft EA and the FONSI for this project (see attached files). Below is a list of concerns or
information needed to effectively review the proposed 404 permit application:
1. There was some discussion regarding whether a bottomless culvert could be used. This needs to be clarified, and
if a bottomless culvert can not be used at this site, what is the proposed alternative.
2. Evaluation of other alternatives discussed at the meeting (e.g., relocation of the road or constructing the
apron/hangar on the upland area on the east side of the runway).
3. A detailed stormwater management plan should be included. Due to presence of dwarf wedgemussel in Swift
Creek, we are concerned about the increase in impervious surface and its impact to water quality in the Swift Creek
watershed.
. 4. What is the proposed buffer width between project construction and Swift Creek?
5. A detailed soil and erosion control plan should be included.
6. Will the proposed improvements be "build-out" or are additional impacts proposed for the future.
7. Depending on the proposed impacts to Reedy Branch, a mussel survey may be needed.
8. A detailed mitigation plan should be included.
In the future, the WRC contact for this project is Steve Everhart, Southeastern Region Coordinator. He can be reached at
910-796-7436 or by e-mail at steve.everhart(a.ncwildlife org
Thanks.
Shari L. Bryant
N.C. Wildlife Resources Commission
P.O. Box 129
Sedalia, NC 27342-0129
336.449.7625
[e-mail]

4/1/2009
c:
MEMORANDUM
TO: Melba McGee
Office of Legislative & Intergovernmental Affairs
FROM: Bennett Wynne
Habitat Conservation Program
DATE: January 2, 2003
SUBJECT: Draft Environmental Assessment (EA) for Runway Safety Extension and Aircraft •
Parking Apron Expansion at Johnston County Airport, near Smithfield, North
Carolina. Project No. 03E-0148.
The North Carolina Wildlife Resources Commission has reviewed the project for impacts
to wildlife and fishery resources. A cursory site visit was made on December 19, 2002. We
regret that time constraints delayed our response. Our comments are provided in accordance
with provisions of the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C.
661 et seq.), Section 401 of the Clean Water Act (as amended), and North Carolina General
Statutes (G.S. 113-131 et seq.).
Johnston County Airport, located off HWY 70 Business north of Smithfield, proposes to
extend its runway safety area (RSA) to the FAA-required 1000 ft. and expand its aircraft parking
apron and hangar space in response to increasing use of the facility by larger aircraft.
Construction alternatives were considered for expanding the RSA to the north and to the south
ends of the runway. The north alternative (preferred) would cross 550 linear ft. of Reedy Branch
Creek, a tributary of Swift Creek in the Neuse River basin, filling approximately 10 acres of cut-
over riparian wetlands that have become essentially marsh. The south alternative would
encroach upon Swift Creek proper, affecting wetlands as shown in Table B-1 although in an
unreported quantity. The listedDwarf Wedge Mussel occurs in Swift Creek and has been,
collected in the vicinity of SR f501, approximately 0.5 mile from the project site. Alternative
sites considered for the aircraft parking apron and hangar space construction included an area 40
Johnston Co. Airport Draft EA 2 4/1/2009
• between existing apron/terminal areas on the western side of the runway (preferred) and an area
on the undeveloped eastern side of the runway. The western site would impact 17.35 acres of
cutover (1995) wetlands that have become fragmented and somewhat isolated hydrologically by
road and airport development. Dense young hardwood saplings are the dominant vegetation on
this site and habitat is provided for raccoon, opossum, muskrat, mink, songbirds, and various
reptiles and amphibians. The eastern apron and hangar site would fill approximately 10 acres of
"high quality" (undefined) wetlands associated with Reedy Branch Creek, requiring construction
of an elevated access road from US 70 to the site. We were unable to access this area at the time
of our site visit. Proposed mitigative measures include use of a pre-cast arch culvert-bridge
having an approximate 80-ft. span for the Reedy Branch Creek crossing, diversion of stormwater
through sediment basins prior to discharge to Reedy Branch Creek with a goal of zero sediment
inputs to Swift Creek, and construction during the drier summer months. The preferred option
for wetland mitigation would be to use the NC Wetland Restoration Program (WRP), possibly in
combination with onsite preservation or in-basin restoration. Also, the draft EA recommends
that the recently developed guidance memorandum on mitigation of cumulative and secondary
impacts (CSI) be incorporated into project design and construction.
Several areas of the draft EA that we think need additional attention follow:
1. How many acres of wetlands would be impacted by the southem RSA extension
alternative and what is their quality relative to those wetlands impacted by the
preferred alternative?
2. A better description of the "high quality" wetlands on the eastern side of the runway
that would be impacted by the eastern apron and hanger space construction alternative
is needed.
3. Although use of a pre-cast culvert-bridge may avoid direct disturbance to the Reedy
Branch Creek stream bed, the EA needs to better describe how this will occur. Is the
80-ft. span sufficiently wide to allow existing stream meanders to remain as well as
maintain a wildlife travel corridor?
4. The 17.35 acres of cutover wetlands that would be filled by the preferred apron and
hangar construction alternative presently appear to receive significant stormwater
runoff from adjacent impervious surfaces before it enters Swift Creek. Based on the
aerial photos it looks as though proposed construction would encompass the entire
vegetated block, leaving no room for permanent stormwater retention basins. The EA
should contain or be accompanied by an overall Stormwater Management Plan
describing in particular detail how lost water quality protection functions would be
compensated for in this area. The close proximity of wetland loss and impervious
surface construction to Swift Creek and its listed Dwarf Wedge Mussel population
makes this an especially sensitive project sub-site.
0
Johnston Co. Airport Draft EA
4/1/2009
5. Due to the sensitivity of Swift Creek and its Dwarf Wedge Mussel population, we •
would appreciate an opportunity to review the Sediment and Erosion Control Plan for
the project.
6. Wetland mitigation for the project apparently hinges on the WRP receiving payment
at least 18 months in advance of permit issuance to allow time for identification and
implementation of a mitigation project. Is the airport willing and able to do this?
We appreciate the EA's recommendation that project construction and design incorporate
the CSI guidelines and would like to emphasize the need for this to occur due to the presence of
the Dwarf Wedge Mussel in Swift Creek. Thank you for the opportunity to continent on the draft
EA. If you have questions regarding these comments, please call me at [phone].
•
0
11
MEMORANDUM
TO: Melba McGee
Office of Legislative & Intergovernmental Affairs
FROM: Bennett Wynne
Habitat Conservation Program
DATE: May 14, 2004
SUBJECT: Finding of No Significant Impact (FONSI) for Construction of Runway Safety
Area, Aircraft Apron, and Corporate Hangar Area at Johnston County Airport,
near Smithfield, North Carolina. Project No. 04-0292.
The North Carolina Wildlife Resources Commission has reviewed the project for impacts
to wildlife and fishery resources. Our comments are provided in accordance with provisions of
the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661 et seq.),
Section 401 of the Clean Water Act (as amended), and North Carolina General Statutes (G.S.
113-131 et seq.).
We commented on a Draft Environmental Assessment (DEA), project number 03E-0148,
for the subject proposal on January 2, 2003 (see attachment). We described 6 areas in which the
DEA needed additional attention, but thus far have received no response to these concerns.
Consequently, we cannot provide a statement of concurrence at this time. Provided our concerns
are adequately addressed, we will concur with the FONSI.
Thank you for the opportunity to further comment on the project. If you have questions,
please call me at 252 522-9736.
0
• PaWK
DICKSON
community infrastructure consultants
I?
•
April 11, 2007
Mr. Thomas Brown
U.S. Army Corps of Engineers
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
Re: Johnson County Airport EA Addendum Meeting
WKD #40391.00.CA (A)
Dear Mr. Brown,
APP ) ?JGr
Thank you for meeting with us and Mr. Ray Blackmon on Monday April 9, 2007. The meeting
was productive in that, once your office reviews and provides comments on the Addendum to
the 2003 Environmental Assessment, we would receive direction as to how to proceed with
the permitting portions of the ERSA and Corporate Area Development Project. We were also
pleased to hear that, in addition to the EEP, restoration, preservation, and enhancement were
still options for mitigating any wetland or stream impacts.
Please call once your office has had time to formulate comments to the Addendum and are
satisfied with the alternatives presented in the study.
If you have any questions or require any additional information, please feel free to contact us
at 803.786.4261.
Sincerely,
W.K. Dickson & Co., Inc.
Steve Wa I ker
cc: Mr. Ray Blackmon, Airport Manager, Johnston County Airport
Mr. Rick Barkes, NC DOT- Aviation
Mr. Daniel Ingram, W.K. Dickson & Co., Inc. - Raleigh
WKD File
1001 Pinnacle Point Drive, Suite 110
Columbia, SC 29223
Tel. [phone]
Fax [phone]
www.wkdickson.com North Carolina • South Carolina . Georgia • Florida

1.-
till
1! ? , X11 T1,1101f
PROGRAM
April 8, 2008
Daniel P. Ingram
WK Dickson
720 Corporate Center Drive
Raleigh, NC 27607
APR 2 3 2008
BY .....................
Expiration of Acceptance: October 8, 2008
Project: Johnston County Airport Runway County: Johnston
The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NCEEP) is willing to
accept payment for impacts associated with the above referenced project. Please note that this decision does not assure that
the payment 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.
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 the impacts that may require compensatory mitigation are summarized in the
followine table-
Neuse
03020201 Stream (feet) Wetlands (acres) Buffer I
(Sq. Ft.) Buffer II
(Sq. Ft.)
Cold Cool Warm Riparian Non-Riparian- Marsh
Impacts 0 0 550 7.23 17.35 0 33,000 22,000
Credits 0 0 1,100 14.46 34.70 0 99,000 33,000
Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. If the regulatory agencies
require mitigation credits greater than indicated above, and the applicant wants NCEEP to be responsible for the additional
mitigation, the applicant will need to submit a mitigation request to NCEEP for approval prior to permit issuance. The
mitigation will be performed in accordance with the Memorandum of Understanding between the N. C. Department of
Environment and Natural Resources and the U. S. Army Corps of Engineers dated November 4, 1998.
If you have any questions or need additional information, please contact Valerie Mitchener at [phone].
Sincerely,
Willia D. Gilmore, PE lJ
Director
cc: Cyndi Karoly, NCDWQ Wetlands/401 Unit
James Shem, USACE-Raleigh
Eric Kulz, NCDWQ-Raleigh
Daniel Ingram, agent
. File
RAstork9... 1E Pro" our Jl cu&

North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-715-0476 / www.nceep.net
C7
E
•
Daniel Ingram
From: [e-mail]
Sent: Wednesday, May 28, 2008 2:54 PM
To: Daniel Ingram
Cc: Brown, Thomas L SAW
Subject: Re: Johnston County Airport mussel survey
Daniel
I hate to see this wetland destroyed but I don't think it contains any habitat for dwarf
wedgemussel. I agree that there is no need to conduct mussel surveys in this portion of
Reedy Branch.
Thanks for the update.
Dale Suiter
Endangered Species Biologist
U.S. Fish and Wildlife Service
P.O. Box 33726
Raleigh, NC 27636-3726
phone - 919-856-4520 ext. 18
fax - 919-856-4556
email - [e-mail]
"Daniel Ingram"
<dingram@wkdickso
n.com>
<[e-mail]>
To
05/14/2008 04:56
PM
Dale:
cc
"Brown, Thomas L SAW"
<[e-mail]
1>
Subject
Johnston County Airport mussel
survey
Johnston County Airport is once again moving forward with their extended runway safety
area (ERSA) and corporate area expansion. There are known populations of dwarf wedge
mussel in Swift Creek (as well as other FSC mussel species) in the airport vicinity.
While the project does not impact Swift Creek directly, the ERSA will cross Reedy Branch
with an approximate 500-foot long culvert. Reedy Branch in this area is almost entirely
impounded by beaver and has little to no free flowing segments. Beaver impoundments are
located on Reedy Branch upstream and downstream of the project until its confluence with
Swift Creek. I have attached an aerial photo of the ERSA site as well as some photos of
Reedy Branch. It is our conclusion that Reedy Branch is not suitable habitat for dwarf
wedge mussel due to the systemic impounded nature of the channel; and, no mussel surveys
should be required.
In May 2005 you attended an on-site agency meeting to discuss the 404/401 permit
application. At the time of the agency meeting in May 2005 you verbally agreed that Reedy
Branch was not suitable mussel habitat and no mussel surveys would likely be required.
You also requested the erosion control plan be included with the permit application. WK
Dickson intends to comply with the erosion control request. At this time WK Dickson is
not planning on conducting any mussel surveys in Reedy Branch. Please let me know if you
would like to schedule a site visit or meet in your office to further discuss this project
and any anticipated survey efforts on Reedy Branch. Thank you for your assistance with
this project.
Daniel Ingram
WK Dickson
Raleigh, NC
919.782.0495
[attachment 1104-06-05_05.JPG" deleted by Dale Suiter/R4/FWS/DOI] [attachment 1104-06-05
03.JPG" deleted by Dale Suiter/R4/FWS/DOI] [attachment 1104-06-05_04.JPG" deleted by Dale
Suiter/R4/FWS/DOI] [attachment "JNX Aerial Map.pdf" deleted by Dale Suiter/R4/FWS/DOI]
•
C7

Daniel Ingram
• From: Martin Richmond [[e-mail]]
Sent: Monday, July 28, 2008 3:11 PM
To: Daniel Ingram
Cc: Amy Chapman
Subject: johnston county airport
Attachments: airport_variance.pdf
i aoc
airport _variance.pd
f (19 KB)
Daniel - regarding our meeting last week ...I think the proposed buffer impacts
at the end of the runway are covered under a General Major Variance for Airport
Facilities. I'm attaching a pdf copy with this email. The key in this case is the FAA
requirements that require the level open area, so as best I can tell, if you have some
kind of documented requirement, then this variance covers the impact, and you guys will
not need to apply for Major Variance
I'll be sending a buffer determination letter either this week or next
Thanks, and let me know if you have any questions Martin

•
1
E
•
0
• GENERAL MAJOR VARIANCE
From the Neuse, Tar-Pamlico, Randleman and Catawba Riparian Buffer
Protection Rules for expansions of and improvements to AIRPORT
FACILITIES that meet the conditions stated below.
Version 5.2, dated April 3, 2002
This General Major Variance ("GMV") from the Riparian Buffer Protection Rules
in the Neuse (15A NCAC 2B .0233), Tar-Pamlico (15A NCAC 2B .0259), Randleman
(15A NCAC 2B .02 50), and Catawba (15A NCAC 2B .0243) River Basins (collectively,
the "Buffer Rules"), is hereby issued by the Water Quality Committee (WQC) of the
N.C. Environmental Management Commission (EMC) for impacts to protected riparian
buffers as long as the conditions prescribed below are met.
Conditions:
1. This GMV applies to any project (a "Covered Airport Project") at or involving an
Airport Facility, as defined below. An applicant (the "Applicant") for a variance
for a Covered Airport Project under this GMV must submit to the Division of
Water Quality (DWQ) three copies of the DWQ General Major Variance
Application Form (the "GMV Form") that describes how the GMV will be met.
The GMV Form will require that the Applicant submit the following information
• from the relevant Buffer Rules: 15A NCAC 2B .0233(9)(a)(i)-(iii), 15A NCAC
2B .0259(9)(a)(i)-(iii), 15A NCAC 2B .0249(c) and 15A NCAC 2B
.0243(9)(a)(i)-(iii). As indicated the GMV Form, the Applicant need not submit
information on the practical alternatives provisions of those rules except as
required by an application for a 401 Water Quality Certification. A completed
version of the most recent version of the joint Corps of Engineers and Division of
Water Quality Preconstruction Application Form can be submitted in satisfaction
of the requirement for a GMV Form.
2. Where a Covered Airport Project is subject to the requirements of the "No
Practical Alternatives" test under the Water Supply rules (15A NCAC 2B .0214-
.0216) ("Water Supply Rules") or the 401 Water Quality Certification rules (15A
NCAC 2H .0500) ("401 Rules"), or both of them, then the evaluation of whether
there are practicable alternatives to impacts to wetlands, streams and buffers for
such shall be performed under the "No Practicable Alternatives" provisions of
those rules that apply. The determination as to the "No Practical Alternatives,"
when issued for either of these rules, shall constitute compliance with the "No
Practical Alternatives" test in the Buffer Rules [15A NCAC 2B .0233(8),
.0259(8),.0243(8) and.0250(2)(e) (the "No Practical Alternatives Provisions")].
For these purposes, this determination shall apply to the project as a whole, even
if there are portions of the project that are not subject to the requirements of the
"No Practical Alternatives" test under the Water Supply rules (15A NCAC 2B
C]
.0214-.0216) or the 401 Water Quality Certification rules (15A NCAC 2H .0500), •
or both of them.
3. Where a Covered Airport Project is not subject to the requirements of the "No
Practical Alternatives" test under the Water Supply Rule or the 401 Rules, such
project is hereby deemed to meet the No Practicable Alternatives Provisions of
the buffer rules, and an authorization certificate for buffer rule approval will be
issued for those projects if conditions 4 through 8 of this GMV are met. If only
buffer rule approval is required, then DWQ may not add additional conditions to
the authorization certificate other than those required to comply with Conditions
4 through 8.
4. Compensatory buffer mitigation will be performed as required by the buffer rules
for Covered Airport Projects. This compensatory mitigation shall not be required
to be done at the Airport Facility, but shall (to the extent practicable) be
performed at locations as close as feasible to the Airport Facility. On-site
mitigation shall, notwithstanding the foregoing, be required only to the extent
allowed by FAA Requirements (as defined below) or other applicable federal
statutes or rules. Mitigation plans must be approved in writing by the DWQ prior
to construction of the mitigation and no later than one year after the date of the
approval of the project under this GMV.
5. Any Covered Airport Project for which a 401 Water Quality Certification is not is
required must be designed by the applicant to minimize any adverse impacts to
Zone 1 of an affected buffer to the greatest extent practicable, consistent with
FAA Requirements.
6. Any Covered Airport Project for which a 401 Water Quality Certification is not
required must be designed by the applicant to include on-site stormwater
management controls, to the extent required by the Buffer Rules and are
otherwise practicable, consistent with the FAA Requirements. Before any new
additional impervious surface associated with the Covered Airport Project is
utilized after construction , the stormwater management facilities shown in the
FAA filing must be constructed and operational and the approved stormwater
management plan implemented. If the applicant is required to obtain a
Sedimentation and Erosion Control Permit or a CAMA Major Permit, then a
Stormwater Permit may be required from the DWQ.
7. The requirements of Conditions 5 and 6 are satisfied if the applicant, in any
appropriate applications seeking FAA approval or review of the Covered Airport
Project, includes a reference to the application to this GMV and the relevant
buffer rules. In addition, the applicant must include a certification and
explanation that the applicant, in designing the Covered Airport Project, has
sought to comply with those requirements to the greatest extent practicable,
consistently with FAA Requirements.
CJ
• 8. The applicant must receive written approval from the DWQ based on the
submittal of the GMV Form for Airport Facilities acknowledging that these
conditions have been met before any impacts occur to the riparian buffer. If a
written response is not sent from DWQ within sixty (60) days from the receipt of
a complete application for the GMV at the Office of the Director in Raleigh, N.C.,
then the application shall be deemed approved.
9. If these conditions cannot be met, or if the variance is issued with conditions
unacceptable to the applicant, the applicant may request that the application for a
GMV be forwarded (along with any response from DWQ) to the EMC, which
shall consider and act on the application for an Individual Major or Minor
Variance from the Buffer Rules. This GMV shall expire on September 12, 2006
unless it is renewed before that time by the EMC. Approvals issued under this
GMV shall continue to be valid after that time, unless an expiration date is
included in the Authorization Certificate.
Definitions:
For purposes of this GMV, the following defmitions shall apply:
An "Airport Facility" shall mean all properties, facilities, buildings, structures,
and activities that satisfy or otherwise fall within the scope of one or more of the
• definitions or uses of the words or phrases `air navigation facility,' `airport," or `airport
protection privileges' under G. S. 63-1; the definition of `aeronautical facilities' in G. S.
63-79(1); the phrase `airport facilities' as used in G.S. 159-48(b)(1); the phrase
`aeronautical facilities' as defined in G.S. 159-81 and G.S. 159-97; and the phrase
`airport facilities and improvements' as used in Article V, Section 13, of the North
Carolina Constitution, which shall include, without limitation, any and all of the
following: airports, airport maintenance facilities, clear zones, drainage ditches, fields,
hangars, landing lighting, airport and airport-related offices, parking facilities, related
navigational and signal systems, runways, stormwater outfalls, terminals, terminal shops,
and all appurtenant areas used or suitable for airport buildings or other airport facilities,
and all appurtenant rights-of-way; restricted landing areas; any structures, mechanisms,
lights, beacons, marks, communicating systems, or other instrumentalities or devices used
or useful as an aid, or constituting an advantage or convenience to the safe taking off,
navigation, and landing of aircraft, or the safe and efficient operation or maintenance of
an airport or restricted landing area; easements through, or other interests in, air space
over land or water, interests in airport hazards outside the boundaries of airports or
restricted landing areas, and other protection privileges, the acquisition or control of
which is necessary to ensure safe approaches to the landing areas of airports and
restricted landing areas, and the safe and efficient operation thereof, and any combination
of any or all of such facilities. Notwithstanding the foregoing, the following shall not be
included in the definition of "Covered Airport Facilities" and therefore these projects
shall be required to satisfy the "No Practical Alternatives" test of the buffer rules (when
is
applicable) as well as other conditions of this: (a) satellite parking facilities; (b) retail
and commercial development outside of the terminal area, such as rental car facilities;
and (c) other associated secondary development, such as hotels, industrial facilities, free-
standing offices and other similar buildings, so long as these facilities are not directly
associated with the operation of the airport, and are not operated by a unit of government
or special governmental entity such as an airport authority.
"FAA Requirements" shall include statutes regarding the Federal Aviation
Administration ("FAA"), including Chapters 445, 447, 449, 471 and 475 of Title 49 of
the United States Code and other such federal laws as govern FAA's regulation, funding,
or oversight of airport design, construction and operation; Parts 77, 107, 141, 150, 151,
157, 169, 170, and 171 of Title 14 of the Code of Federal Regulations; document and
order entitled "Field Formulation of the National Plan of Integrated Airport Systems"
(5090.3C); "Airport Environmental Handbook" (Order 5050.4A); "Wildlife Hazard
Management at Airports; all applicable FAA airport circulars (including, without
limitation, 150/5070-6A, 150/5300-13, 150/5325-4A, 150/5320-5B, 150/5370-10A,
150/5200-33, 150/53404C, 150/5340-24, 150/5320-15, and all other similar FAA
circulars); and all similar FAA requirements and publications, as well as subsequent
versions of all of the listed documents.
Signed:
Dr. Charles H. Peterson, Chair
Water Quality Committee
NC Environmental Management Commission
Effective Date:
is
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-e \NA7-�� Michael F. Easley, Governor
01
William G. Rryoss Jr., Secreta
65E North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
September 15, 2008
Daniel Ingram
WK Dickson
720 Corporate Center Drive
Raleigh, NC 27607
HASIN:
X
(15ANCAC213.02733) --
Project Name: Johnston County Airport
Tar -Pamlico
(15A NCAC
0259)
NBRR0408-189
Johnston County
Location/Directions: Subject property is located on Swift Creek Rd, south of nwy 70 in Johnston County,
USGS = Powhatan; NRCS = Johnston County Sheet 6
Subject Stream: A, UT to Swift Creek; B: Reedy Branch
Date of Determination: July 22, 2008
ure(s) Not Stop,
Subject Start @
opn,_a
Subject Stream Soil Survey USGS
W :E Form Pts.
— Topo
X
X X X
--X Throu hout X
X X
Explanation: The feature(s) listed above has or have been located on the Soil Survey of Johnston County, North
Carolina or the most recent copy of the lJSGS Topographic map at a 1:24,000 scale. Each feature that is checked
"Not Subject" has been determined not to be a stream or is not present on the property. Features that are checked
"Subject" have been located on the property and possess characteristics that qualify it to be a stream. There may be
other streams located on your Property that do not show up on the maps referenced above but, still may be
considered jurisdictional according to the LIS Army Corps of Engineers anchor to the Division of Water Quality.
This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected
parties that dispute a determination made by the DWQ or Delegated Local Authority that a surface water
exists and that it is subject to the buffer rule may request a determination by the Director. A request for a
determination by the Director shall be referred to the Director in writing c/o Cvndi Karoly , DWQ
Wetlands/401 Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. individuals that dispute a determination
by the DWQ or Delegated Local Authority that "exempts" a surface water from the buffer rule may ask for
an ad judicatory hearing. YOU must act within 60 days of the date that you receive this letter. Applicants are
hereby notified that the 60 -day statutory appeal time does not start until the affectedparty the
downstream and adjacent landowners) is notified of this decision. DWQ recommends that e appinlicant
conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask
for a hearing, send a written petition, which conforms to Chapter 1508 of the North Carol:
Ina General
Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This N Carolina
determination is final and bindiniz unless vou ask for a hearing within 60 days, VIIA(49(ly
North Carolina r)ivl,
, ion of Water Quality Raleigh Regional Of
intemet h2o-enrstatenc.us SlArtace Water Protectionun Phone [phone] (,usroMeT Service
1628 N-lail Service (.'enter Raleigh, NC 27699-1628 FAX [phone]
An Equal OPPOrtunitYlAffifrn3tive Acton Employer — 50% Reqcie&lo% Post Consumer Paw

A y �9
Ah & s _ &on a
0

Johnston County Airport
Johnston County
September 15, 2008
Page 2 of 2

The (owner/future owners) should notify the Division of Water Quality (including any other Local, State, and
Federal Agencies) of this decision concerning any future correspondences regarding the subject property
(stated above). This project may require a Section 404/401 Permit for the proposed activity. Any inquiries
should be directed to the Division of Water Quality (Central Office) at (919)-733-1786
and the US Arm
,
y
Corp of Engineers (Raleigh Regulatory Field Office) at (919)-876-8441.
Respectfully,
Iloe
f
?
Martin R`
monc
Environmental Specialist

CC.- Wetlands/ Stormwatcr Branch, 2321 Crabtree Blvd, Suite 250, Raleigh, NC 27604
RRO!SWP File Copy
Central Files
T

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e Ont

'ti0?Caro in-4

North Carolina Division rsfWate Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
lntenet; h2o.enrstate,nc.us 1628 Mail Service Center Raleigh, NC 27699.1628 FAX [phone]-61+-6748
An Equal t rtunlty/AlfinnaUwe Action Employer- 50% Recydedi10% Post Consumer Paper

•
APPENDIX D
Corporate Area Stormwater Plan
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1001 Pinnacle Point Drive, Suite 110, Columbia, SC 29223
February, 2009
community Inltastructuro consultants
Johnston County Airport
Corporate Area
Table of Contents
Johnston County Airport, ERSA Corporate Area
April, 2009
1. Introduction
1.1. Project Scope, Description
1.2. Pre/post Developed Discharge
1.3. Disturbed Area
2.
3.
Mapping
2.1. USGS Map
2.2. Soil Survey Map
2.3. FEMA FIRM
2.4. Land Use
Hydrology/Hydraulics
3.1. Waters of the State
3.2. Hydrologic Analysis
3.3. Detention Analysis/Desi
3.4. As-Builts
3.5. Permanent Stormwater
3.6. Discharge P2!fthl,
3.7. Permanent4. Erosion
4.1. Sedia
4.2.
5.
Append Wat ed Map, Pre-developed
Appendix shed Map, Post-developed
Appendix C_ Firmette/ Soils Data
Appendix D - Pre/Post Analysis Calculations
Appendix E - Stormdrain Hydraulic Calculations
Appendix F - Erosion Control Calculations
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.a.muNry ?Mab K c.nm N
DStonnwaterDesign Report DIGKSON
Johnston County Airport
Corporate Area
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C:
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1. Introduction:
This Stormwater Design Report is intended to provide data necessary for proper
conveyance of stormwater on the constructed site using a "Best Management Practice"
approach for the adequate control of sediment runoff and erosion. The Stormwater
Pollution Prevention Plan (SWPPP) includes this narrative, drawings with specifications,
notes and construction details. Al
1.1 Project Scope: The project consists of grading lation of a new apron for a
proposed set of T-Hangars at the Johnston Coun ort. a apron will be built now
with hangar construction scheduled for the n ne to two Additionally, a dry
detention pond will be built as part of sto er control, in the ar tween the parking
lot and the T-Hangars. The project is locat proxim ely 3.5 mi rthwest of the
Town of Smithfield, North Carolina, off of Hi elow is a loca map for the
project.
?w?-XG*;.v n r
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Ai
DStormwaterDesion Report DCKS4N
Cemmunlly InOOr/rueWrs eonwnonp
Johnston County Airport
Corporate Area
Figure 1: Location Map
The existing site condition is all woods in good condition. The proposed condition is a
parking area and hangar facility. The calculations account for both the parking and
hangar facility even though the hangar will be build in the near future under separate
contract. See the watershed maps in Appendices A and B.
Approximately half of the area will discharge into the dry detention area proposed for the
infield between the proposed parking area and T-Hangars. The other area will discharge
directly to the outfall via a lined ditch on the south side of thg.project area.
1.2 Pre/Post Discharge:
A summary of discharges from the site is tabula
the Outfall located near the south east property U
Outfall
watershed area drains to
Frequency Pre-develo Po /Pond
2 Yr (24 Hr. Storm) 127.73 cfs 9.18 cfs
10 Yr (24 Hr. Storm) ,50 cfs rqL?35.66 cfs
not produce any cff.
measured from the
eros
in
as sult of ffqOW for this development will
patt within the basin. The disturbed area is
limi ' cluding areas needed for staging and
Area = 22 ac
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comTUnNy MlranucWrtr eomunonu
DStormwater Design Report ? KSON
Johnston County Airport
Corporate Area
1* 2. Mapping:
2.1 USGS Man:
Discharge flows into Reedy Branch, then in a westerly direction to Swift Creek.. The
project coordinates are 35°32'27"N, 78°23'31 "W.
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StormwaterDesian Resort DDICKSON
eonrnwnlly IMrednwwr. oenwiMnh
Johnston County Airport
Corporate Area
2.2 Soil Survey Map •
The soils found on the site have a MRCS rating of B to D. The following map shows the
distribution of the soils over the project area.
Figure 3: NRCS Hydrologic Soil Groups
See Appendix C for soil descriptions.
•
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DMICKSON
Stormwater Design Report cemm my ?cnaM1COwr? eon?unann
Johnston County Airport
Corporate Area
• 2.3 FEMA FIRM
The exhibit below shows the location of the airport on a portion of the FEMA FIRM,
•
E
StormwaterDesian Report DD CKSON
oommrnllY mlrahuolun comcxanx
panel 3720168500J dated December 5, 2005. A firmette is provided in Appendix C.
Johnston County Airport
Corporate Area
2.3 AERIAL PHOTO
DDICKSON
Stormwater Design Report OOIO11 n"v MIIOOMION OOOtO110On
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The exhibit below shows the location of the airport on a aerial photo, courtesy of Google
Earth. The project coordinates are 35°32'27"N, 78°23'31"W.
Johnston County Airport
Corporate Area
• 3. Hydrology/Hydraulics
3.1 Waters of the State: An individual 404 Permit is needed to mitigate wetland
disturbance on the site.
3.2 Hydrologic _Analysis: Hydrology calculations for Pre and Post development
conditions were prepared using the TR-55 methodology and stormwater software,
Hydraflow Hydrographs Extension for AUTOCAD Civl CD. The data are shown in
Appendix D.
3.3 Detention Analysis/Design:. Detention pond
using the same hydrology analysis software, H:
AUTOCAD Civl CD. The detention pond is sized
that the combined pre-developed flows for the
year, 24-hour storm events. The summary fl
data is included in the output in Appendix .
Calculations to verify the capacity of storm dP1
Storm Sewers Extension for AUT CAD Civl
Output files are included in Append
3.4 As-Builts: No existing detention p
• 3.5 Discharge Poin n-e ge poi
those exi sting d con
maintained as much each s
first 1 " rainfall
low ce on the
•
y d design were performed
Hydro graphs Extension for
w taro for its area DA1, such
are ned for the 2 and 10-
bulated ction 1.2. The pond
in
n the
The Mt-
Lter outfall.
;re run us' p Hydraflow
for design o ipe culverts.
water system.
ty will not be changed from
veloped drainage areas are
t Quality is provided by detaining the
be accomplished by properly sizing the
Stormwater Design Report r/D CKSON
eom-Ity mfWWM.10.0.6.00" t
Johnston County Airport
Corporate Area
4. Erosion Control Measures
Erosion control measures will be implemented for this project for the control of runoff
sediment and the control of erosion according to NCDENR guidelines. Erosion control
measures shall consist of the establishment of perimeter silt fencing as shown on the
drawings to retard siltation, the construction of a gravel mat at the site entrance,
construction of a detention pond, and permanent and temporary grassing. Temporary
sediment traps have been sized at the appropriate locations as needed over the project
area. This trap will be removed following paving and stabi . tion.
4.1 Sedimentology. The sediment traps provided
areas is sized to provide 1800 cy/ac of sediment t
from the 10-year storm below the crest o
calculations are shown in Appendix F, w ' e r
shown in Appendix D. The sediment trap e c
4.2 Stable Channel Calculations:'
runoff without erosive velocities.
vegetated channels, erosion control
are used to resist the, Ndi
computed for this , iflows, therefore onl control erosion_and pro outlets where

point of the disturbed
storage for the runoff
'he sediment storage
d trap routing are
ed to carry the 10 year storm
;ss ceed the allowable stress for
or inforcement mats (TRMs)
e velocities and stresses
.atio 'suitable for the anticipated
in the newly constructed channels to
tion. The computations are shown in
is provided around all. catch basins being
for locations.
rotection in the form of Rock Riprap is provided at pipe
the need for protection.
4.5 Fill Slopes: The mum fill slope on the site will be 311: IV. The fill slopes will
be tracked to improve vegetative establishment.
4.6 Operation and Maintenance: The contractor selected will, as a condition of the
contract, adequately operate and maintain all erosion control measures as shown on the
drawings and as specified. The work shall proceed in accordance with the schedule
provided in the drawings and measures shall be maintained on a regular basis. Silt
fencing will be removed only after sufficient permanent ground cover has been
established.
DD CKSON
Stormwater Design Report Mmmunny 10-ft •w" .0-It°•'•
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APPENDIX E
RSA Culvert Report
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,O H N STO N COUNTY AIRPORT
RSA Extension
Culvert Design
Johnston. County
Airport
•
APRIL 2009
Prepared by:
WK Dickson and Company, Inc.
Water Resources Division
Columbia, South Carolina
ps\'Vi
.,
community Infrastructure consultants
0
Culner7 Design -Fehr itarv 2009 Johnslon Counts, Arrport
About the Project
,bhnston County Airport contracted with WK Dickson, Inc. (WKD) to design a Runway Safety
Area (RS4) extension. The proposed extension will place fill in the stream area encroaching on
Reedy Branch, a tributary of Swift Creek. In order to convey the stream flow through the RSA
embankment, a culvert was proposed.
A comprehensive stormwater study for the culvert installation for the runway safety area
extension was developed. A precast segmental rectangular structure is projected for this
installation. The foundation and structural design will be provided by the manufacturer and is
not part of WKD Scope of Work. The purpose of this report is to describe the methodology
used to design the crossing.
Site
The project is located at the end of the runway in bhnston County Airport, near Smithfield,
North Carolina. The Latitude and Longitude of the site is:
Latitude: 35°32'55"N
Longitude: 78°23'29"W
Figure 1 is a location map of the area of the crossing.
1572 1917
1501
ston 70
cou Irport 1992
;orPS, 1913
Srvffeld 1991 'j as
? 1915 ` fir.
3#
'i,
70
1948 -:»tn "?
^i 7icry [? 1955
? 1978
1579 l 1913
1010
210 NC rnvy 210 70
W,a?Prs
i
70 `
?1o Smithfield
Figure 1 : Location Map
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Culverl Design -Februaiai 2009 Johnston Countv Airport
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Hydrologic and Hydraulic Analysis.
WKD collected data relevant for the project from Aerial Mapping and USGS Quadrangle
Sheets. A Survey of four cross-sections of the creek (two upstream and two downstream of the
culvert location) was obtained as part of the data necessary to execute the HEC-RAS model for
the culvert design. Additionally, WKD surveyed the culverts under Swift Creek, located 630
feet upstream of the inlet of the proposed culvert.
Hydrology
The watershed acreage was obtained from the USGS map. Based on this amount, flow rates
were calculated using USGS regression equation for the area. The map and calculations are
included in Appendix A, Hydrologic Calculations. Table 1 shows the frequency and
corresponding flows.
Table 1. Rainfall Frequencies and Flows for Reedy Brach. Johnston County Airport.
Frequency,
In years Flow,
in CFS
2 370
10 639
25 1201
50 1497
1010 1826
Based on the above flows, the HEC-RAS model was run for different culvert configurations.
HEC-RAS is a one-dimensional steady flow hydraulic model designed to analyze channel flow
and determine floodplain. The results of the model can be applied in floodplain management
and headwater elevations. Since the watercourse is not a FEMA studied stream, there is no
FEMA involvement is the stream analysis.
Hydraulic and Environmental Considerations
Hydraulic. The three arch culverts located at the Swift Creek crossing conveys the 10-year
storm. The road is overtopped by the 25-year storm. The objective of the new culvert design
is twofold:
1. To keep the water level below the Swift Creek Road Bridge for the 10-year storm and
smaller frequencies, and
2. To minimize any water level increase for larger storms (25-, 50-, and 100-year storms).
To comply with the above requirements, three culverts were proposed: two-10'x6' and one-
9x7' Reinforced Concrete Box Culverts.
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Culvert Dcsi_an -Febrzran- 2009 Johnston Couniv Airpor!
Environmental. The Reedy Branch is a tributary of Swift Creek, which discharges into the
Neuse River. The Neuse River is an impaired stream with very specific NC Department of
Water Quality (DWQ) stormwater rules. In addition, per NC DWQ requirements, the culvert
has to comply with the following requirements:
1. The culvert cannot be a bottomless structure but rather a close section due to
foundation issues;
2. It needs to be buried to allow for fish passage, and ;
3. Two of the boxes should be baffled or installed at a higher elevation 90 that the
baseflow is contained in a single box.
These issues were taken into consideration in the design of the culvert. To comply with the
first requirement, rectangular box culverts (which have a bottom slab) were specified.
As for issue no. 2, the central culvert is proposed to be buried for fish passage. Per the NC
Guidelines for Drainage Studies and Hydraulic Design, for large culverts, the depth of bury
shall be between 01 and 1.0 feet. A depth of 0.5 ft was assigned to these culverts.
•
With respect to point no. 3, the base flow for Reedy branch was obtained as follows. The
USGS gauge on Marsh Creek in the same Hydrologic Unit Code (HUC) has a mean daily
discharge over the last 24 years of 9.45 cfs. By scaling that down the flow based on watershed
size (6.8 sq mi vs. 4.3 sq mi), the Reedy Branch discharge will be 6.0 cfs. For a 9-foot width
culvert, the necessary depth will be 0.3 ft. Calculations are shown in Appendix B, Baseflow
Calculations. 0
FINAL CULVERT
CONFIGURATIONN
10'x6' BOX CULVERT 9'x7' BOX CULVERT 10'x6' BOX CULVERT
LATERAL CENTRAL LATERAL
0.5 FT 0.5-ft 0.5-FT 0.5 FT
RAISED BASE BURIED RAISED
CULVERT FLOW CULVERT
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Culvert Desi,n -February 2009 Johnston Corrn Airport
• Figure 2 : Culverts Configuration.
After running the model with this configuration, the elevations at the Swift Creek Road Bridge
are as follows.
Table 2. Water Surface Level at Swift Creek Bridge for Existing and Proposed Conditions.
Frequency, Exist. Cond. Prop. Cond. Difference,
In years Elevation, (w/ culverts) in feet
in feet Elevation, in feet
2 140.59 140.61 0.02
10 141.98 142.06 0.08
25 144.61 144.71 0.10
50 145.12 145.21 0.09
100 145.45 145.65 0.20
The increases in water level were insignificant. Any attempt to avoid any increases resulted in
extremely oversized culverts which implementation would not be economically feasible.
Output files and profiles of the water levels for different frequencies and conditions are
included in Appendix C, Hydraulics and HEC-RASsimulations. A disk with the computer runs
is included in a pocket with the report.
Geotechnical for Culvert Foundation
• WKD prepared a boring program with input from the culvert manufacturer and the
geotechnical engineer to establish the number and locations of borings required for foundation
design. These borings were obtained, logged and evaluated by a drilling/geotechnical sub-
consultant, WPC. A copy of the geotechnical report is enclosed in Appendix D. Geotechnical
recommendations for the culvert state that, in order to reach net bearing pressures of 4,000
PSF, foundations should be extended 6 feet below the natural ground in the culvert area.
Erosion Control
WKD will prepare the sediment and erosion control plan for the construction work in
accordance with the NC DENR regulations and Johnston County requirements to be depicted
on the construction plans.
The stormwater conveyance system from the runway safety area to the creek will was designed
to carry the 10-year storm event to suitable and stable outfalls. Detention and or water quality
will be designed as per NC DENR and Johnston County regulations if required.
F, 1
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Calvert Design -Februarv 2009 Johnston Cornuh Airpor7
Appendix A •
Hydrologic Calculations
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[?nnu-ifY nfrosfr?ctu rc c.on_u..?nls
Culvert Design -February 2009 Johnston County Air ort
• Appendix B
Baseflow Calculations
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oonnu-rry nfrasrr?ofu rc con: m!a nls
Culvert Desi(,,r -Februan, 2009 Johnston Comm, .4 hport
Appendix C •
Hydraulic Calculations and
HEGRAS Simulations
•

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c?nnu-uy nfra sfr?cfu rc c.?n.u r?n1s
Culvert Design -Fehruarv 2009 Johnston Countl 9hport
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Appendix D
Geotechnical Report
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