Primer on Environmental AssessmentsInside
Major environmental
issues for airports ...... 2
EA -triggering
events ......................... 2
Airport land -use
compatibility
guidelines ................... 3
Format of an
environmental
assessment ................ 4
Schedule and time
frame ....................... 5-6
The Carter and
Burgess experts ......... 7
A special report from Carter & Burgess, Inc.
A Primer on Environmental
Assessments for Airports
Nof all airport projects are created
equal, yet each holds the potential to
require some type of environmental assess-
ment. Airport managers might suspect that if
a project is big and costly, for example, they
must produce an environmental impact
statement (EIS) or environmental assessment
(EA).
Not necessarily.
In the eyes of the Federal Aviation
Administration (FAA), there are specific
criteria to determine whether an airport
project requires an environmental assessment
(EA) or environmental impact statement
(EIS). How does the airport staff determine
which assessment to compile — or even
whether one is needed at all? Furthermore,
what are the key components which must be
addressed?
Edith A. Linn, airport/environmental
planner for Carter and Burgess, Inc., per -
sonnies the uncommon blend of environmen-
tal scientist and pilot. She brings her unique,
twofold expertise to consulting with all types
of airports regarding environmental regula-
tory compliance. Questions to Linn and to
other airport planning and environmental
professionals at Carter and Burgess concern-
ing this technical area of analysis have
prompted the development of this primer on
airport EAs.
Linn said, "You've got to know both
environmental and aviation issues to be
effective in this area of consultation. The
FAA's philosophy is very different from that
of the land -based transportation agencies, for
example, and since FAA oversees airport
environmental regulatory compliance as
outlined by the National Environmental
Policy Act (NEPA), it's critical to know
aviation characteristics and idiosyncrasies."
To EIS or not to EIS?
Linn said the more complex and
lengthy environmental impact statement is
only required if an airport project meets a
narrow, specific set of criteria.
Actions requiring an EIS are:
A. First-time Airport Layout Plan
approval or airport location approval for a
commercial service airport located in a
standard metropolitan statistical area
(MSA); and/or
B. Federal financial participation in, or
Airport Layout
Plan approval
of, a new
Carter r Burgess
Consultants in Engineering Architecture, 1
you've already done a great deal of the
research and identified the issues," Linn said.
The effort and time expended during the EA
process does not have to be duplicated to
create an EIS.
"The EA has the baseline information
that would be enhanced for the EIS," she
said.
The submission of an EA optimally
results in a "Finding of No Significant
Impact" (FONSI). If a FONSI is not granted,
the regulatory agency could ask for more
information or possibly require the more
comprehensive EIS.
Major environmental
issues for airports
Airports are uniquely three-dimensional
facilities, often affecting large areas of land
and the air space above it. There are a
number of environmental issues which affect
airports, and each will have a different
degree of significance depending on where
the airport is located and what type of project
is involved.
Noise, land use, wetlands, historic/
archaeological factors, threatened and
endangered plants and animals are prime
issues. Linn said, "In Wyoming, for example,
where much of the land is untouched, historic
and archeological issues are prominent in
airport building projects. Conversely, in
Arlington, Texas, located in the middle of the
Dallas/Fort Worth metroplex, the land has
most likely been disturbed; but, noise may be
an issue because people are likely to live near
the airport."
Gina McAfee, Carter and Burgess
senior environmental planner, said it is in the
client's best interest to seek out and take
seriously public input on airport projects
because the public hearing process of an
environmental assessment provides an
opportunity to find out which issues are
important. It can also set the stage for future
ongoing relationships between an airport and
its neighbors. She said, "With our national
experience, we can often anticipate whether
the public interest level will be high or low in
a given area."
Continued on Page 4
3
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18. Farmland
17. Energy supply an
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18. Light emissions
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ind
F. Summary of miti .tior
echaeo-
G. Preparers
An airport EA includes a prediction
ibility near an airport, both now and in the
of the noise impact for areas surrounding
future, is a critical
part of the airport EA.
the airport. The most common tool used in `
"You should never see an amphitheater at
this analysis is the FAA
end of a runway," Linn
Integrated Noise Model
said. The FAA has
("), whose product is a
Regulatory
agency
prepared a table of
noise contour map detailing
concerns may include
guidelines on what uses of
noise levels from the loudest
wetlands, historial
land are acceptable within
to the quietest around the
archaeological ica issues',
each noise level contour
airport. The noise levels are
threatened and endow-
surrounding an airport.
measured in a value called
gered pleats and
Linn said, "Schools,
Ldn, or day -night sound level,
animals. and may
hospitals, nursing homes,
which describes cumulative
require associated
churches, outdoor music
noise exposure from all
surveys.
venues, for example, are
events over a full 24 hours,
not compatible near an
77
nimort according to the
and 7 a.m. weighted by 10 decibels to
account for greater nighttime noise sensi-
tivity. Linn said, "This is the accepted
definition, but some states may have
something different. California uses the
Community Noise Equivalent Level or
CNEL, which is a noise metric similar to
Ldn. It differs in that there is an additional
penalty category for 7 p.m. to 10 p.m. and
10 p.m. to 7 a.m. It essentially requires
three weighted averages instead of two."
A determination of land -use compat-
FAA table."
The draft EA must be sent to as-
sorted environmental agencies at the local,
state and national levels for each agency's
comments on the airport project. "One of
Carter and Burgess' greatest values to
clients is our ability to coordinate among
all these agencies," Linn said. Regulatory
agency concerns may include wetlands,
historic/archaeological issues, threatened
and endangered plants and animals, and
may require associated surveys. Airports.
may have done these types of surveys,
Linn added, at some other point or during
some other project. It is perfectly accept-
able to review the findings of these
previous surveys in response to an agency
request, she said.
"Many levels of governmental
agencies," Linn said, "such as the state air
and water quality boards, US Fish and
Wildlife Service, National Park Service,
US Army Corps of Engineers and the US
Department of Agriculture, must be given
the opportunity to review the airport EA."
She said the review process gives these
agencies 30 days to respond to the document
in writing. "We receive replies which run the
gamut from letters of approval to change
requests. In addition, we compile all of the
verbal comments from the public hearing."
Following the close of the comment
period, the final version of the EA is created.
"In the final document, we must respond to
every single issue raised, regardless of the
source. We have to change text or explain
scheduleTypical
for an environmental assessmenli
Month
1 2 1 3 1 4 T 5
Study design
Draft EA
Inventory
Purpose, need and alternatives
Land use plans
Geological soils
Water quality/wetlands
Biology/ecology
Air quality
Noise
Energy supply
Aesthetics/light emissions
Social impacts
Historic/archaeological
Induced socioeconomics
Other sections
Draft EA assembly and production
Draft/Final EA
Draft EA revisions
Final EA revisions
Meetings and public hearings*
Surveys (Most surveys are time dependent)
Public Meetings/Hearings (last one is optional)
The FAA requires a 30-day public review of the Draft EA
6 7 8 9
41
C:
why we aren't changing it." The final docu-
ment goes to FAA, as the lead agency. Linn
said the EPA is involved from a comment
perspective and as the central core of every-
thing environmental in the US; ultimately, the
FAA guidelines are a spin-off from NEPA.
Recent legislation regarding air quality
has resulted in new conformity guidelines for
the Clean Air Act (CAA). Linn said, "Since
these and other regulations have been recently
established or updated, the FAA is in the
process of redoing FAA Order 5050.4A, which
sets forth the primary EA guidelines." Linn
noted that water and air quality certifications
are also required from the governor of the state
(or appointed person) before the EA or EIS
will be approved by the FAA.
Achieving the EA's goal, a "Finding of
No Significant Impact (FONSI)" from the
FAA, is the likely outcome of thorough prepa-
ration and skillful coordination among the
agencies.
Linn said, "Since we have had ready
access to all possible comments, we can have
everything fixed within the final document. We
are talking with agency representatives all the
time, so they are in on the process."
"We're not out to fight the public or the
agencies," McAfee emphasized. "The only way
this works is if everyone's happy. If not, the
airport staff's life will be miserable. We
advocate doing it right the first time without
trying to cut corners. We want to be secure in
the knowledge that we are within the limits of
the law to achieve our goal."
Schedule and time frame
While the process and format of an
airport EA follow a predictable path, the time
frame is heavily dependent on coordination and
communication, and often indeterminate.
"Regulatory agency coordination is the most
time-consuming element in the process, and the
most variable," Linn said. "Although I would
like to say we must have at least nine months to
prepare an airport EA," Linn said, "the reality
is that it can take more or less time, depending
on how quickly we get responses back from the
different agencies." As in any detail -oriented
project, the more lead time, the better. The
average project is based on a nine- to 12-
month schedule.
No airport project is exactly like any
other, Linn said, but she outlined a typical EA
schedule for reference purposes (see page
five).
Summary
In approaching environmental assess-
ments, the challenge for airports lies in the
details — determining what amount and what
kind of environmental impact their improve-
ment projects may involve, if any; consulting
and coordinating with appropriate local, state
and national agencies, as well as the public, in
the process; and knowing and appreciating the
distinct requirements of aviation projects.
Linn said, `Environmental regulations over-
lap; you'll find some similarities and some
peculiarities. The FAA is unique within the
US Department of Transportation in that they
have specific instructions for everything, and
expect that you will adhere to them. It's up to
us at Carter and Burgess to know the nitty-
gritty details to ensure a successful outcome
for our clients."
Bauman
Jones
Linn
McAfee
Nesta
Veal
Larry Bauman, P.E., manager of Carter and Burgess' aviation planning activities,
provides expertise in aviation system planning, aviation planning procedures, airport
financial control and economic impact of airports. Bauman has 16 years of
experience in all aspects of airport master plan development for both civilian and
military projects: "A good airport plan helps airport managers 1) maximize runway
layout; 2) anticipate future problems by building in flexibility; 3) maximize capacity; 4)
enhance ability to park aircraft and 5) identify surplus non -aviation areas for
maximum revenue return."
James O. Jones, Manager of the Ecological Services Group for Carter and Burgess,
has 20 years of experience in biology, terrestrial and aquatic ecology, physical
oceanography, estuarine pollution and regulatory affairs. His specialty is the manage-
ment of controversial and difficult permit applications. He has worked closely with
federal, state, and local agencies to expedite environmental compliance on behalf of
project owners. Other specialty areas include wetland mitigation banks, endangered
species studies, and land resource management programs. In July 1982, he testified
as an expert witness before the Subcommittee on Environmental Pollution of the U.S.
Senate Committee on Environment and Public Works, Washington, D.C.
With more than -eight years' experience in transportation and environmental planning,
Edith A. Linn, airport/environmental planner for Carter and Burgess, specializes in
the preparation of environmental assessments, site assessments, environmental
impact reports, and environmental impact statements. She has prepared environmen-
tal studies for airports in Arizona, California, Texas, Oregon, Washington, Wyoming
and Alaska. Linn also maintains technical expertise in the areas of air quality moni-
toring and noise modeling.
Gina McAfee, AICP, is a senior environmental planner with Carter and Burgess. Her
18 years of experience include land use and environmental analysis for transporta-
tion projects. One of her strengths is in conducting public involvement programs, in
which she manages the solicitation of public input and coordinates public; response
during the environmental study process. She has managed environmental impact
statements and environmental assessments for numerous transportation projects
across the United States, including Colorado, Florida, North Carolina, Texas, Wash-
ington, Oregon, Utah, Idaho, Nevada, Arizona, Montana, Wyoming, Michigan, South
Carolina, and Illinois.
Nicholas L. Nesta Jr. has more than nine years of experience in aviation planning.
He has been involved in the development of all aspects of airport master planning
including noise and land use plans, inventory, demand/capacity forecasts, airport
layout plans, environmental analyses, site selection analyses, and others. His respon-
sibilities at Carter and Burgess include project management as well as development
of environmental assessments for both commercial service and general aviation
airports. Mr. Nesta has aviation planning experience in the states of Florida, Colo-
rado, Maryland, Virginia, Pennsylvania, Utah, and Nebraska to name a few.
Steven C. Veal, P.E., is an associate principal of Carter and Burgess with a national
reputation for expertise in storm water management and development of pollution
prevention programs for transportation projects. Veal also serves as group leader of
the firm's GIS department, and is responsible for GIS applications to solving environ-
mental problems. Veal has more than 17 years of experience in the permitting,
design, management and construction supervision of major storm drainage and flood
control facilities. He has directed more than 200 major NPDES storm water permitting
projects, many at airports located across the nation.
N
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