20041743 Ver 4_Individual_20101207

JLFAk THE LPA GROUP INCORPORATED ov?- t q q 3 U?
Transportation Consultants
700 HUGER STREET ¦ P. O. BOX 5805 ¦ COLUMBIA, SC 29250 ¦ 803-254-2211 ¦ FAX [phone]
December 6, 2010
Mr. Ian McMillan
N.C. Division of Water Quality
401 Oversight and Express Review Permitting Unit
2321 Crabtree Blvd., Suite 250
Raleigh, NC 27604
A119K
SUBJECT: Martin County Airport Permit Modification Request
Martin County, North Carolina
DWQ# 20041743 ver. 3 and SAW 2008-01556
Mr. McMillan,
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The Martin County Airport is requesting a modification of DWQ# 20041743/SAW 2008-01556 for
the addition of a hangar/taxilane and the extension of Taxilane A that were not included in the
original application. The 401 Water Quality Certification was approved on June 27, 2008 and the
Section 404 Individual Permit was approved on February 24, 2009. As shown on the attached
location map (Figure 1), the Martin County Airport is located just north of Everetts, North Carolina.
As requested for the above project, please find attached five (5) copies of a project narrative and the
associated permit drawings. Also attached is a check in the amount of $240.00 for the processing
fee.
Please let me know if you have any questions, or need additional information.
Sincerely,
THE LPA GROUP IN RATED
? 'r-
Edward . Smail
Environmental Scientist
Enclosures
cc: Mr. Russell Overman, Martin County (w/enclosures)
Ms. Emily Jernigan, USACE (w/enclosures)
Mr. Terry Bumpus, P.E., THE LPA GROUP (w/enclosures)
Mr. Gordon Murphy, THE LPA GROUP (w/enclosures)
Project File (w/enclosures)
ATLANTA ¦ BALTIMORE ¦ BATON ROUGE ¦ CHARLOTTE ¦ COLUMBIA ¦ DESTIN ¦ FALLS CHURCH ¦ GREENSBORO ¦ IRVINE ¦ JACKSONVILLE ¦ KENNESAW ¦ KNOXVILLE
LITTLE ROCK ¦ MOBILE ¦ NASHVILLE ¦ OCEAN SPRINGS ¦ ORLANDO ¦ RALEIGH ¦ SARASOTA ¦ ST. LOUIS ¦ TALLAHASSEE ¦ TAMPA ¦ WEST PALM BEACH

PROJECT NARRATIVE
TAXILANE and HANGAR CONSTRUCTION
PERMIT MODIFICATION
MARTIN COUNTY AIRPORT
December 2010
The Martin County Airport is located in Martin County, North Carolina, north of the
town of Everetts approximately 2.0 miles north of US 13/64. A project location map is
attached as Figure 1.
The Martin County Airport is requesting a modification to the Section 404 Individual
Permit (SAW 2008-01556) received on February 24, 2009, and the Section 401 Water
Quality Certification (WQC) (DWQ# 20041743 ver. 3) received on June 27, 2008.
Reason for Modification Request/Project Purpose
The hangars approved in the original permit are not large enough to provide for the future
volume of aircraft at the Airport and additional hangar space is needed. The Airport has
potential tenants that could occupy a portion of the additional hangar space once it is
available. The taxilanes are a necessary part of the hangars to provide connectivity to the
existing runway and additional airport facilities, and to provide vehicle access and
parking.
Project Information
Name: Martin County Airport Hangar Area Development (Modification)
County: Martin
Nearest Town: Everetts, NC
Owner Information
Martin County Airport Commission
Mr. Russell Overman
305 East Main Street
Williamston, NC 27892
Ph: 252-792-1901
Fax: [phone]
rovermanC&martincount !lcgov.com
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Agent/Consultant
THE LPA GROUP INCORPORATED
Mr. Edward J. Smail
4401 Belle Oaks Drive, Suite 105
North Charleston, SC 29405
Ph: 843-329-0050
Fax: [phone]
esmail(-,l1agrou .com
1
12/6/2010
Property Identification
Tax PIN/Parcel ID: 5737-71-4650
Project Coordinates: 35.8625 deg. N 77.1763 deg. W
Property Size: 181.5 acres
Surface Waters
Nearest body of water to proposed project: Husksnaw Swamp
Classification: C, SW, NSW
River Basin: Tar-Pamlico (HUC 03020102)
Project Description
Revisions to the design include the addition of a hangar, the extension of Taxilane A, and
the addition of a Taxilane (Taxilane D as shown on Figure 3 of the attached permit
drawings). The new hangar would be approximately 210 feet long by 50 feet wide and
would be located approximately 35 feet north of the permitted Taxilane C. Taxilane A
would be extended approximately 150 feet north of the end of the permitted portion of
Taxilane A and would be approximately 35 feet wide. Taxilane D would extend
approximately 270 feet east from the end of Taxilane A and would be approximately 25
feet wide. The construction equipment used for the project would consist of standard
earthmoving equipment.
Previous Approvals
Jurisdictional Determination (Action ID 200510092) Approved 12/8/04
Nationwide 14 Permit (Action ID 200510092) (Access Road) Approved 12/8/04
401 WQC (DWQ# 04-17463) (Access Road) Approved 115105
Jurisdictional Determination (SAW 2008-01556) Approved 2/24/09
Individual Section 404 Permit (SAW 2008-01556) (Hangar Area) Approved 2/24/09
401 WQC (DWQ# 20041743 ver. 3) (Hangar Area) Approved 6/27/08
Jurisdictional Determination (SAW 2009-01020) Approved 6/15/09
Nationwide 14 Permit (SAW 2009-01020) (Navigation Instrument) Approved 6/15/09
401 WQC (DWQ# 20041743 ver 3.) (Navigation Instrument) Approved 10/2/08
Direct Impacts
As shown on Figure 3, these revisions resulted in a 0.20 acre increase in wetland impacts.
These impacts would result from fill associated with the additional improvements.
Impacts to jurisdictional areas were determined by overlaying the construction limits on
the limits of the jurisdictional determination. The construction of the proposed project
would permanently impact approximately 0.20 acre of wetlands. Wetland A/B will be
directly impacted by the placement of fill for construction. These impacts are detailed in
the attached permit drawings.
Avoidance and Minimization
Due to the nature of the project total avoidance of impacts to jurisdictional areas was not
possible. Temporary impacts to water quality due to erosion and siltation during
construction of the proposed project will be minimized by the implementation of standard
2
12/6/2010
erosion and siltation controlling measures as specified in FAA AC 150/5370-10, entitled
Standards for Specifying Construction of Airports, and specifically Item P-156,
Temporary Air and Water Pollution, Soil Erosion, and Siltation Control. Temporary
controls include the seeding of slopes, mulching, slope drains, benches, dikes, dams, and
sediment basins, as appropriate. Other best management practices would be required of
the contractor to ensure compliance with the polices of the North Carolina Department of
Natural Resources. Selected controls and practices will be detailed in the construction
documents. Necessary National Pollutant Discharge Elimination System (NPDES)
permit modifications or other land clearing and construction related non-point source
permits will be obtained prior to construction of the project.
Mitigation
Mitigation would be provided for the impacts by purchasing credits from the North
Carolina Ecosystem Enhancement Program (EEP). A copy of the EEP approval is
attached.
Cumulative Impacts
The construction of the proposed project would not directly result in additional
development that would impact downstream water quality. The project will improve the
connectivity at the Airport and the proposed hangars would allow for additional hangar
space. However, no major future development in relation to the proposed project would
occur. There is future development planned at the Airport, but it is unrelated to the
construction of the proposed modification.
There have been three permits issued at the Airport over the past six years for impacts to
waters of the United States. A new access road resulted in 0.10 acre of wetland impacts,
a new Precision Approach Path Indicator (PAPI), a navigational device, resulted in 0.01
acre of wetland impacts, and the original permitted hangar area would result in 1.35 acres
of wetland impact and 95 linear feet of stream impact. Therefore, including the impacts
associated with the proposed modification, total cumulative impacts would total 1.66
acres of wetland and 95 linear feet of stream.
Endangered Species and Designated Critical Habitat
The project does not occur in an area with federally protected species or suitable habitat.
Site visits were performed and the habitat types observed were compared to the habitat
types for federally listed species and Designated Critical Habitat. GIS data was also
obtained from the North Carolina Natural Heritage Program, and there no occurrences of
federally listed species within the project area. Additionally, the United States Fish and
Wildlife Service (USFWS) did not object to the original permit application, which
encompassed the area of the proposed modification.
Essential Fish Habitat
The project does not occur in an area of Essential Fish Habitat (EFH). GIS data obtained
from the Fish and Wildlife Resource Institute (http://ocean.floridamarine.oriz) and
reviewed to determine if Essential Fish Habitat occurs within the project area. The
3
12/6/2010
closest EFH to the project area is located approximately 3.0 miles northeast of the project
area.
Cultural Resources
Impacts to cultural resources are not anticipated. The State Historic Preservation Office
(SHPO) did not object to the original permit application, which encompassed the area of
the proposed modification.
Flood Zone Designation
The project does not occur within a FEMA designated 100-year floodplain. Location was
verified using the North Carolina Floodplain Mapping Program
(hllp://www.ncfloodmgps.co ).
4
12/6/2010
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,Ecosystem
PROGRAM
November 10, 2010
Russell Overman
Martin County Airport
305 East Main St.
Williamston, NC 27892
Expiration of Acceptance: August 10, 2011
Project: Hangar Area Development Martin Co. Airport County: Martin
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. You must also comply with all other state, federal or local
government permits regulations or authorizations associated with the proposed activity including SL 2009-337: An Act to Promote
Compensatory Mitigation by Private Mitigation Banks.
This acceptance is valid for nine 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 following
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River Basin
CU
Location
Stream (feet)
Wetlands (acres)
Buffer I
(Sq. Ft.)
Buffer II
(Sq. Ft.)
Cold Cool Warm Riparian Non-Riparian Coastal Marsh
Impact Tar-Pamlico 03020103 0 0 0 0 0.20 0 0 0
Credits Tar-Pamlico 03020103 0 0 0 0 Up to 0.40 0 0 0
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 N.C. Department of Environment and Natural Resources' Ecosystem Enhancement Program In-Lieu Fee
Instrument dated July 28, 2010.
If you have any questions or need additional information, please contact Kelly Williams at [phone].
Sincerely,
William lmore, PE
Director
cc: Ian McMillan, NCDWQ Wetlands/401 Unit
Emily Jernigan, USACE-Washington (2008-01556)
Ed Smail, agent
File
Our state,
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North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-715-0476 / www.nceep.net
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