PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA           Item No.      6a 
ACTION ITEM          Date of Meeting  October 22, 2013 

DATE:    October 3, 2013 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    Stan Shepherd, Manager, Airport Noise Programs 
SUBJECT:  Second Reading and Final Passage of Resolution No. 3683, concluding the
Federal Aviation Regulation (FAR) Part 150 Noise and Land Use
Compatibility Study for Seattle-Tacoma International Airport 
ACTION REQUESTED 
Request Second Reading and Final Passage of Resolution No. 3683: A Resolution of the
Port Commission of the Port of Seattle concluding the 2013 Federal Aviation Regulation
(FAR) Part 150 Noise and Land Use Compatibility Study Update for Seattle-Tacoma
International Airport.
SYNOPSIS 
The Code of Federal Regulations (CFR) Title 14, Part 150, governs Airport Noise
Compatibility Planning. Part 150 describes the processes by which airports identify and
mitigate exposure of individuals to airport noise. 
The Part 150 Noise and Land Use Compatibility Study Update (Part 150 Study) is
designed to identify significant existing and future noise impacts, as defined by the
Federal Aviation Administration (FAA) within areas surrounding Sea-Tac Airport and to
recommend actions to address those impacts. 
The Noise Compatibility Program elements included in the Part 150 Study update are the
outcome of an extensive public involvement process and a formal review under the State
Environmental Policy Act (SEPA). 
The public comment period for the Part 150 Study recommendations and SEPA review
ran from April 15 through May 30, 2013, and approximately 70 comments were received
on the study. Responses to the comments received have been completed and will be
included in Part 150 documents. The next step in the process will be for the Commission
to adopt a resolution to approve the study and authorize staff to submit to the FAA for
final review and approval.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 2 of 8 
On April 12, 2013, the Port issued the SEPA Threshold Determination of Non-
Significance (DNS) of Proposed Action. The Port determined that the proposal would
not have a probable significant adverse impact on the environment. The SEPA Final
Determination became final after the 21-day appeal period that ended September 20.
BACKGROUND 
The Part 150 Study Update process began in 2009.  The Commission has been briefed
eight times on the study in public session. To date, the Port has sponsored five Part 150
Study public events: 
February 24, 2010, in Des Moines. 
June 9, 2010, in Burien. 
October 27, 2010, in Des Moines. 
April 9, 2011, at Sea-Tac Airport. 
May 15, 2013, in Burien. 
All outreach events were designed for maximum public involvement and were wellattended.
Briefings were also provided, as requested, to the following groups: 
Federal Way City Council 
SeaTac City Council 
Des Moines City Council 
North Hill Community Club 
City of SeaTac Hotel/Motel Committee 
Highline School District Board of Directors 
Citizens Against Sea-Tac's Expansion Community Group 
Burien City Council 
Normandy Park City Council 
Members of the study team also met multiple times with elected stakeholders at the local,
state and federal levels, to keep them apprised of the process and solicit input. 
Other public involvement efforts: 
Periodic briefings to the Highline Forum to ensure that elected leaders in the
airport communities were kept informed and had the ability to offer input
throughout the process. To date, the Highline Forum has received eight briefings. 
Seven Technical Review Committee (TRC) meetings, during which the study
team solicited feedback on technical issues related to the study.  The TRC is
comprised of land-use planners from local airport communities and
representatives from the FAA, Puget Sound Regional Council, Boeing Field,
Washington State Department of Transportation, and the Alaska Air Group.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 3 of 8 
A dedicated data review session, during which the public could ask questions and
learn about the noise metrics used in a Part 150 Study. 
A combined open house and official public hearing was conducted on May 15, 2013.
Approximately 80 people attended. In addition to Port staff, representatives from the
consultant team of Landrum & Brown and staff from the FAA were on hand to answer
questions on the study.  A licensed court reporter was available at the meeting, so 
attendees could formally offer public comments regarding the Part 150 Study Update and
the SEPA review process. Responses to comments from this meeting and all others
received from April 15 through May 30 have been completed and will be included within
the Part 150 Study Update appendix documentation.
PART 150 STUDY UPDATE PROCESS 
During the Part 150 Study Update process, the public was requested to provide their
perspective on which mitigation items should be proposed as options in the study. Input
received during the first four public meetings generated a lengthy list of suggested 
recommendations. Using the FAA's established criteria for Part 150 community noise
mitigation, the list was refined to recommendations that could potentially provide a noise
reduction within the 65 Day Night Level (DNL) contour and would be allowable under
Part 150 regulations.
After the study update is approved by the FAA, Port staff will prepare for the
Commission a prioritization plan for the implementation of the approved noise mitigation
recommendations.   Final FAA approval of the Part 150 noise mitigation
recommendations  qualifies these recommendations for potential  FAA Airport
Improvement Program (AIP) grant funding; however, approval of the recommendations
does not guarantee AIP grant funding or the Port's ability to commit resources.
PART 150 STUDY RECOMMENDATIONS 
The Part 150 Study recommendations are categorized as follows:  1) Continuing
measures with some modification;  2) Continuation of existing measures without
modification; 3) New measures; and  4) Program  management measures,  such as
employee staffing and computer equipment and resources, which will assist with noise
program implementation and management. (Note that the cost estimates provided are
preliminary and subject to change.) 
Continuing Measures with Some Modification: 
Single Family Homes Sound Insulation:  Continue offering sound insulation to
eligible homes within the revised Noise Remedy Program Boundary. A potential
new element to this program is including air conditioning as part of the sound
insulation package for single family homes. Homes that have already received an
insulation package would not be eligible for air conditioning. 
o  Cost of adding air conditioning for l home: $12,500

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 4 of 8 
o  Number of remaining homes identified: 193 
o  Total cost estimate: $2,412,500 
Multi-Family Owner-Occupied Sound Insulation:  Offer sound insulation to
eligible multi-family, owner-occupied residences (condominiums) within  the
revised Noise Remedy Program Boundary. 
o  Number of individual condominium units identified: 320 
o  Total cost estimate: $21,440,000, or $67,000 per unit 
Voluntary Acquisition of Residential Homes Located in the South Approach
Transition Zone (ATZ) for the Third Runway.
o  Number of single family homes identified: 16 
o  Number of apartment buildings identified: 6 
o  Total cost estimate: $10,000,000 
Maintenance Run-Up Regulations: Continue with existing measure and modify to
include the use of the recommended Ground Run-Up Enclosure (GRE) 
. 
Develop and Implement a Fly Quiet Program: Continue to implement the existing
Fly Quiet Program and modify to include different airline categories to enhance
the program. 
Continuing Measures without Modification: 
Insulation of Schools: As funding permits, continue the sound insulation program
for Highline Community College buildings and schools in the Highline School
District that were previously identified as eligible. 
Property Advisory Service: Provide residents and property owners within the
nearby communities access to timely and factual information concerning noise
programs and options for mitigation. 
Local Government Remedy Support:  Encourage the local jurisdictions to
undertake projects, provide services, and adopt laws that make them more
compatible with airport operations. 
Funding for Land Use and Noise Compatibly Planning: Assist local public
agencies having planning authority within the 65 DNL Noise Contour to apply for
reimbursable funding for specific off-airport land use and noise compatibility
planning efforts which are consistent with the Part 150 guidelines and the Port's
noise compatibility goals.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 5 of 8 
Prepare Cooperative Development Agreements:   Continue to address
development potential within local jurisdictions for areas included within the
revised Noise Remedy Boundary. 
Explore Limited Rescheduling of Nighttime Flights: This measure involves the
voluntary rescheduling of aircraft flight times for nighttime short-haul flights. 
Use VOR Radials to Curb Aircraft Drifting from Noise Abatement Tracks: This
measure uses very high frequency (VHF) Omnidirectional range radials (VOR) to
prevent departing aircraft from drifting off the runway heading tracks as specified
in the FAA Tower Order. 
Preferential Runway Use:  This measure implemented a preferential runway
system during the nighttime hours for operations through the north flow nighttime
noise abatement corridor. 
Use of Flight Management System (FMS) Procedures: This measure is designed
to encourage the use of FMS procedures to improve noise abatement corridor
compliance. 
Use of Ground Equipment: This measure recommends the installation of power
and conditioned air in existing and newly constructed gates to minimize the use of
aircraft auxiliary power units. 
New Measures: 
Multi-Family Tenant Occupied Sound Insulation: Offer sound insulation to
eligible apartment buildings inside the revised Noise Remedy Program Boundary,
starting with a pilot project to determine the project's feasibility. 
o  Number of individual apartment units identified: 1,157 
o  Total cost estimate: $46,280,000, or $40,000 per unit 
o  Estimate for a feasibility  study  for one complex   approximately
$1,100,000 (included in total cost estimate above) based on a 20-24 unit
apartment building 
Church and Places of Worship Sound Insulation: Conduct a study to evaluate the
noise levels at various churches and places of worship within the revised Noise
Remedy Program Boundary to determine the feasibility of providing sound
insulation to these buildings. 
o  Estimated cost of this study is approximately $40,000 
Voluntary Purchase of Avigation Easements on Individual Parcels with Mobile
Homes: Work with property owners and local jurisdictions to explore options to

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 6 of 8 
discontinue the use of mobile homes as residences on single family zoned
properties, within the revised Noise Remedy Program Boundary.
o  Number of identified mobile homes on private land: 88 
o  Total cost estimate for purchase of avigation easements only:  $440,000,
or $5,000 per unit 
o  Potential additional cost if removal or relocation  of the structure  is
required: costs TBD 
Establish Feasible Locations for a Ground Run-up Enclosure (GRE): A GRE is a
large three-sided structure within which aircraft can perform required engine
testing, thereby  resulting in a quantifiable noise reduction impact on the
surrounding communities. The Part 150 identified three feasible locations on the
airfield. There are operational and cost issues associated with each of the feasible
locations on the airfield. Concurrently with the Part 150 Study and within the
context of the airport's future operational needs, Port staff will develop more
detailed construction cost estimates and facilities layouts for GRE site alternatives 
within the upcoming Sustainable Airport Master Plan.
o  Cost of structure only (not including site prep): $6,000,000 to $10,000,000 
o  Cost of site preparation (dependent on location) $10,000,000  to
$25,000,000
Program Management Measures: 
Replace and Upgrade the Noise Monitoring and Flight Tracking System:  The
current system is more than 12 years old and is recommended to be replaced with
newer technology innovations that require comprehensive updates to the existing
system.
o  Total cost estimate for replacement of flight tracking system and 25
permanent noise monitoring stations: $2,000,000 
Periodically Review and if Necessary, Update the Noise Exposure Maps (NEM's)
and the Noise Compatibility Program (NCP): Port Staff will periodically review
the NEM's and NCP to determine whether any significant changes have occurred
to the noise environment in accordance to the FAA's guidelines. 
Continue to Operate the Noise Programs Office: The Port will adequately staff
and operate the Noise Programs Office to carryout provisions of the Part 150
Study and provide noise-related community resources. 
FINANCIAL IMPLICATIONS 
Assuming all proposed noise mitigation recommendations in the current Part 150 Study
are approved by the Commission and FAA, all recommendations receive 80% of eligible
costs through AIP grant funding, and the Port is able to commit resources to cover its
share (20% or more) of the funding match, the total project cost will be approximately

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 7 of 8 
$131,575,000. Though the total amount expected to be spent will vary on a year-to-year
basis, an average of $13,157,500 each year over a 10-year period may be necessary to
fund these projects. Staff will work with the Office of Social Responsibility to follow
federal Disadvantaged Business Enterprise (DBE) guidelines to allow for small business
opportunities.
NEXT STEPS 
After Commission approves the resolution, the study documents will be submitted to the
FAA for review. It is anticipated that the FAA will issue the Federal Register notice in
November 2013, which will start their 180-day review period.  If no delays are
encountered during the review, we anticipate that the FAA will issue the Record of
Approval (ROA) by May 2014. 
ATTACHMENTS TO THIS BRIEFING 
Part 150 Study Update Resolution No. 3683. 

PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
October 8, 2013  First Reading of Resolution No. 3683, concluding the Federal
Aviation Regulation (FAR) Part 150 Noise and Land Use Compatibility Study 
September 24, 2013  Part 150 Noise and Land Use Compatibility Study Update
and review of Draft Commission Resolution. 
January 15, 2013  Part 150 Noise and Land Use Compatibility Study Update. 
October 2, 2012  Part 150 Noise and Land Use Compatibility Study Update. 
August 23, 2011  Part 150 Noise and Land Use Compatibility Study Update
Briefing and Policy Roundtable with Mayors (or their representatives) from
Burien, Des Moines, Federal Way, Normandy Park, SeaTac and Tukwila. 
June 28, 2011  Part 150 Noise and Land Use Compatibility Study Update held
in Federal Way. 
October 26, 2010  Part 150 Noise and Land Use Compatibility Study Update. 
June 22, 2010  Part 150 Noise and Land Use Compatibility Study Update. 
March 23, 2010  Part 150 Noise and Land Use Compatibility Study Update held 
in Normandy Park.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
September 26, 2013 
Page 8 of 8 

February 23, 2010  Part 150 Noise and Land Use Compatibility StudyUpdate 
and Policy Roundtable with mayors (or their representatives) from Burien, Des
Moines, Federal Way, Normandy Park, SeaTac and Tukwila. 
November 23, 2009  Authorization for the Chief Executive Officer to update the
Part 150 Noise Compatibility Plan Study for an approximate cost of $2.5 million,
representing an increase of $1.5 million over the previously authorized amount. 
June 23, 2009  Authorization for the Chief Executive Officer to procure and
execute a contract for consultant services to implement an update to the Part 150
Noise Study for an estimated cost of $500,000 to $1 million.