PORT OF SEATTLE 
MEMORANDUM 

COMMISSION AGENDA               Item No.     5b 
February 3, 2009 
DATE:    January 27, 2009 
TO:      Tay Yoshitani, Chief Executive Officer 
FROM:    Stan Shepherd, Manager, Airport Noise Programs 
Jude Barrett, Manager, Aviation Property Acquisition and Relocation 
SUBJECT:  Relocation of the residents of Parcel Numbers 344500-0110, 344500-0141,
344500-0145, 344500-0155 commonly known as Town and Country Mobile
Home Parks in the City of SeaTac. 
SYNOPSIS 
This authorization continues the relocation of mobile home residents affected by aircraft noise. 
The relocation was recommended by the FAA in 2002 and the FAA provides 80% grant funding. 
REQUEST 
Request for authorization for the CEO to execute all documents necessary to complete the 
relocation of the residents of Parcel Numbers 344500-0110, 344500-0141, 344500-0145, 
344500-0155 commonly known as Town and Country Mobile Home Parks in the City of 
SeaTac, located within the 1998 70 Day Night Level (DNL) noise contour, at an estimated cost 
of $5,061,110 including legal and administrative expenses. Typical documents and payments for
acquisition and relocation activities include: personal property purchase and sale agreements,
moving payments, down payments, first and last month's rent payments, security deposits,
payments to appraisers, relocation consultants, mobile home park application fees, utility
deposits and pre-payment of mobile home park space rents. For this project, the Manager of 
Acquisitions & Relocations will be delegated through the CEO to execute these typical
documents and payments up to a maximum of $50,000 per occurrence. Larger payments will be
executed according to the CEO redelegation Port Policy Number EX-2. This request will bring
the total authorization for this CIP to $49,706,110. 
BACKGROUND 
Residents in mobile home parks adjacent to the Seattle-Tacoma International Airport (Airport)
within the 70 DNL noise contour are significantly impacted by aircraft noise. Since it is not costeffective
to noise-insulate mobile homes, as the Port has done with other residential structures,
the Federal Aviation Regulation Part 150 Study Update completed in 2002 recommended that

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
January 27, 2009 
Page 2 of 5 
the Port acquire the seven mobile home parks located within the 1998 70 DNL noise contour - 
two north of the Airport, in the City of Burien, and five to the south, in the City of SeaTac. The
Port has completed the acquisition of all the parks and is in the process of relocating the residents
of the final park, named Town & Country Mobile Home Park. 

PROJECT DESCRIPTION/SCOPE OF WORK 
The scope includes relocation of the remaining residents. Town and Country Mobile Home Park
is a large-sized park, with approximately 70 of the original 200 households remaining to be
relocated. 
PROJECT JUSTIFICATION 
Staff developed an overall aviation acquisition priority strategy, which was presented to the
Commission in January 2002. The strategy identified criteria for prioritizing the large number of
acquisitions so that funding and staffing resources could be directed in a logical manner
consistent with construction schedules, budgets, noise impacts and acquisition timelines. Town
and Country was the last of the mobile home parks to be acquired. 
Strategic Rationale: 
This action is in support of the Airport strategy to Develop and Maintain a Supportive
Community by assisting residents in relocating to an environment that is not impacted by aircraft
noise, and by facilitating the conversion of land to uses compatible with an airport environment. 
FINANCIAL IMPLICATIONS 
This request for additional authorization is due to a budget increase in real estate costs, the costs
to relocate the occupants and an increase in abatement and demolition costs. Although real estate
values are perceived to have fallen recently, mobile home replacement housing costs are up by
167% since the 2006 authorization. The cost to relocate occupants has also increased by 50%,
while abatement and demolition costs are 39% or $4,000 higher per unit because remaining
residences are larger, double wide units of newer construction with increased comparable values.
This authorization will enable staff to relocate approximately 70 mobile home residents to
quieter neighborhoods. 
Budget/Authorization Summary 
Original Budget (2001)          $ 39,040,000 
Budget Increase                $10,666,110 
Revised Budget              $ 49,706,110

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
January 27, 2009 
Page 3 of 5 

Revised CIP budget (current)       $ 49,706,110 
Previously authorized            $ 44,645,000 
Current authorization request     $ 5,061,110 
Remaining budget to be authorized   $ 0 
This is anticipated to be the final request for authorization made to the Commission. 
Project Cost Breakdown                  Current Request 
Tenant relocation costs (70 units)                  $ 4,054,267 
Unit abatement/Demolition/Site restoration (200 units)    $ 2,000,000 
Total Costs Remaining                     $ 6,054,267 
Less Remaining Authorization                  ($ 993,157) 
Total Authorization Request                  $ 5,061,110 
Source of Funds 
This project is included in the 2009-2013 Capital Budget and Plan of Finance under CIP number 
200037. This program is approved by the Federal Aviation Administration for federal funding
by Airport Improvement Program (AIP) grants, reimbursement of 80% of eligible costs
(construction, tax, and consulting fees). The funding plan for this project includes a combination
of grants, Passenger Facility Charges (PFC), and Airport Development Funds (ADF). 
Financial Analysis 
CIP Category                Compliance 
Project Type                Noise Mitigation 
Risk adjusted Discount rate        N/A 
Key risk factors               N/A 
Project cost for analysis           $5,061,110 
Business Unit (BU)             Airfield 
Effect on business performance     The Port does not charge airlines for the portion of the capital
costs funded by grants and PFC's. The ADF funded portion of
the project costs will be recovered through rates and charges, so
NOI after depreciation will increase. 
IRR/NPV                N/A 
CPE Impact                Less than $0.01 in 2009-2010, but no changes to business plan
forecast as this project was included

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
January 27, 2009 
Page 4 of 5 
PROJECT SCHEDULE 
Implement communication plan                 2006 (completed) 
Update acquisition and relocation plan              September 2006 (completed) 
Acquire Town and Country and relocate hardship tenants  2007 (completed) 
Relocate remaining tenants                      2008  2011 

PREVIOUS COMMISSION ACTIONS 
Resolution No. 2943, as Amended, adopted January 8, 1985  Created the first Seattle-Tacoma
International Airport Part 150 program, which authorized outright acquisition of all incompatible
land uses. 
Resolution No. 3062, adopted May 8, 1990  Adopted the Noise Mediation Agreement, a series
of noise reduction measures negotiated through an environmental mediation process, including a
measure to explore ways to deal effectively with mitigation for noise-impacted mobile homes. 
Resolution No. 3144, adopted, July 1993  Updated the original SeaTac Airport Part 150
program, including a measure to provide financial incentives for conversion of noise-impacted
mobile home parks to airport compatible land use. 
Resolution No. 3443, adopted December 12, 2000  Amended the Port's Part 150 Program to
include acquisition of residential properties in the Third Runway North and South Airport
Transition Zones and acquisition of mobile/manufactured home parks within the 1998 70 DNL
noise contour. 
Commission authorization, January 22, 2002  Authorized staff to acquire two mobile home
parks (Flora Vista and Burien Gardens) for $10,067,000 within the 70 DNL noise contour within
the City of Burien as recommended in the Airport's Part 150 Update, 2001. 
Resolution No. 3482, adopted February 26, 2002  Amended Resolution No. 3443 authorizing
the Port of Seattle to proceed with the purchase of the affected mobile homes prior to final
Federal Aviation Administration approval of the Federal Aviation Regulation Part 150 Study
Update.Commission authorization, June 11, 2002  Authorized staff to acquire one mobile home
park (Upwardly Mobile) for $1,000,000 within the 70 DNL noise contour within the City of
SeaTac as recommended in the Airport's Part 150 Update, 2001. 
Commission authorization, January 25, 2005  Authorized staff to acquire one mobile home park
(Tyee Valley Mobile Home Park) for $4,694,000 within the 70 DNL noise contour within the
City of SeaTac as recommended in the Airport's Part 150 Update, 2001.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
January 27, 2009 
Page 5 of 5 
Commission authorization, August 22, 2006  Authorized staff to acquire Town and Country
Mobile Home Park for $25,500,000 within the 70 DNL noise contour within the City of SeaTac
as recommended in the Airport's Part 150 Update, 2001 
Commission authorization, May 13, 2008  Increased project authorization by $3,384,000 to the
revised budget of 44,645,000. The final authorization to complete the project was pending
additional analysis.