TagPart 150(118)

In April 2022, the Port of Seattle Commission considered authorizing a $1.29 million settlement with Wesley Homes to resolve a dispute over an avigation easement and aircraft noise at Wesley's Terrace Building near Seattle-Tacoma International Airport. Under the agreement, the Port would conduct acoustical testing, pursue FAA funding for noise mitigation, reimburse up to $250,000 of Wesley's legal fees, and commit to a full Part 150 noise study update for SEA Airport. Although the Port denied wrongdoing, it recommended settling to avoid the higher costs of going to trial.

This document is a detailed response regarding a proposed Washington State house bill on airport sound insulation, arguing that homeowners near Sea-Tac Airport who received faulty or inadequate noise insulation in the 1980s–2000s should qualify for a second round of repairs at no fault of their own. The author contends that poor contractor quality, a bankrupt window manufacturer, and dramatically increased flight operations have left many residents without the noise protection they were promised in exchange for signing away air rights. Key recommendations include limiting eligibility to homes originally certified under the 65 dB DNL noise contour, using certified engineers to assess repair needs, and tying funding criteria to documented increases in aircraft operations over time.

A community member wrote to a GAO researcher studying NextGen aviation noise impacts near Seattle-Tacoma International Airport, urging that community complaints be paired with responses from the FAA and Port of Seattle to ensure credibility. Key concerns raised include an outdated noise exposure map that has not been updated despite significant growth in air traffic, and the FAA's alleged refusal to answer questions submitted as far back as April 2018. The letter argues that without official rebuttals or supporting documentation, community perceptions risk appearing unsubstantiated and could undermine the integrity of the GAO study.

In February 2020, the Port of Seattle Commission adopted Motion 2020-04, directing the Executive Director to accelerate the sound insulation program at Seattle-Tacoma International Airport and complete it no later than 2026. The motion calls for appropriate staffing, funding, and contracting to deliver the program on time, with regular progress updates to the Commission's Aviation Committee. The Port is also directed to coordinate with other public agencies to ensure the program complements, rather than duplicates, existing efforts related to low-income housing and energy upgrades.

In October 2019, community advocate Sharyn Parker responded to a request for public input on a Sea-Tac Airport airfield ground noise study being conducted by consulting firm HMMH. Parker argued that the consultant should first analyze existing noise monitor station data, correlate it with engine run-up records and resident complaints, and review compliance with Washington State noise regulations (WAC 173-60) before seeking community feedback. She also raised concerns about non-functioning noise monitors, the airport's unverified claims about off-site engine testing, and potential overlap with a separate noise study tied to the airport's master planning process.

The Port of Seattle completed an updated Part 150 Noise and Land Use Compatibility Study for Seattle-Tacoma International Airport (Sea-Tac), which was approved by the Port of Seattle Commission in October 2013 and subsequently received a Record of Approval from the Federal Aviation Administration (FAA). The study identifies noise incompatibilities in communities surrounding Sea-Tac and recommends measures to reduce aircraft noise, building on earlier programs such as a 'fly-quiet' initiative and sound insulation efforts. Sea-Tac is recognized as having one of the most comprehensive airport noise reduction programs in the nation, and this updated study is intended to further minimize the impact of aircraft noise on neighboring communities.

The Port of Seattle responded in October 2019 to detailed questions from the City of Burien about aircraft noise management at Sea-Tac Airport, addressing concerns about noise studies, abatement procedures, sound insulation programs, and community engagement. The Port defended its 2014 Part 150 noise study as covering all three runways and argued that improved aircraft technology has actually reduced the noise-impacted area since the previous study. It also outlined ongoing mitigation efforts, including a Late-Night Noise Limitation Program, over $300 million spent on sound insulation for thousands of homes, and the upcoming Sustainable Airport Master Plan environmental review, which will reassess noise impacts across all runways.