20151229 Ver 1_Pre Application Info_20150529

INTERNATIONAL
May 29, 2015
Ms. Sue Homewood
NC Dept. Environment & Natural Resources
Division of Water Resources
450 W Hanes Mill Rd., Suite 300
Winston-Salem, NC 27105
Innovation Done Right ... We Make a Difference
RECEIVED
N.C.pept. of ENR
JUN 0 5 2015
Winston-Salem
Regional Office
Subject: Early Coordination Review for proposed HAECO Facility Improvements
Piedmont Triad International Airport (GSO), Guilford County, North Carolina
Dear Ms. Homewood,
The Piedmont Triad Airport Authority (PTAH) is proposing improvements to the Timco Aviation Services
dba HAECO Airframe Services (HAECO) leasehold at 623 Radar Road, Greensboro, on the Piedmont Triad
International Airport (GSO) in Guilford County, North Carolina (Figure 1, enclosed). The proposed
improvements would address the need for additional aircraft maintenance, parking, and movement; fire
suppression capability; and connection of the two sides of the existing HAECO campus. These
improvements would facilitate efficiency of HAECO's GSO operations. The proposed improvements
include:
• Site preparation of approximately 20 acres of land including clearing, grading, fill, and
excavation;
• Expansion of the existing 475 -ft. wide concrete apron for approximately 350 ft. with connection
to airport Taxiway M4;
• Construction of an approximately 341 ft. by 505 ft. aircraft hangar;
• Construction of an approximately 15,000 sq. ft. fire suppression facility;
• Extension of utilities to the new structures, including electrical, natural gas, water, sanitary
sewer, stormwater collection and treatment, communications, and other related utilities; and
• Implementation of mitigation measures for unavoidable wetland and stream impacts.
The facility layout illustrated in Figure 2 (enclosed) represents the location for the proposed additional
apron area and conceptual plan for potential site improvements. In accordance with the National
Environmental Policy Act of 1969 (NEPA) and Federal Aviation Administration (FAA) implementing
regulations, PTAA is preparing a short Environmental Assessment (EA) to consider and document the
potential social, economic, and environmental impacts associated with the proposed Project. The EA
will be submitted to the FAA for a decision whether to issue a Finding of No Significant Impact (FONSI),
to prepare a more detailed EA, or to issue a Notice of Intent (NOI) to prepare an Environmental Impact
Statement (EIS). Michael Baker Engineering (BAKER) is the consultant for the EA.
During the course of the EA, investigations will be conducted to identify potential Social, Economic, and
Environmental impacts related to the improvements being considered. As part of our early coordination
efforts for the EA, and on behalf of the PTAH, BAKER is attempting to identify key issues that will need to
be addressed in the NEPA process. To accomplish this, we are requesting your comments relative to the
proposed improvements as they relate to your specific area of expertise or regulatory jurisdiction
including permitting or mitigation requirements.
i? oma . LrA �SAIIYPORT 8000 Regency Pkwy., Suite 600 Cary, NC 27518
_. —_ MBAKERINTL.COM
Office: 919-463-54881 Fax: [phone]

May 29, 2015
Page 2
Innovation Done Right ... We Make a Difference
In order to appropriately address key project issues and maintain the project schedule, your written
comments are requested by June 30, 2015. Please respond to me at the letterhead address and feel
free to contact me at [e-mail] or 919.481.5740 if you have any questions or concerns.
Sincerely,
MICHAEL BAKER ENGINEERING, INC.
Richard Darling, C.E.
Environmental Manager
RBD/JAR/AB:rd
Enclosures: Figure 1 Project Vicinity Map
Figure 2 Proposed Facility Layout
cc: Aaron Braswell; FAA
Alex Rosser; PTAA