Category : Correspondence(309)

In August 2019, the City of Burien formally suspended its participation in the Sea-Tac Advisory Roundtable (StART), citing the Port of Seattle's decision to advance airport expansion designs before completing required environmental reviews, a lack of transparency, and a feeling that community concerns were being ignored. The letter raises serious questions about noise abatement, slow sound insulation programs, air quality impacts extending miles beyond the airport, and the exclusion of nighttime engine run-up mitigation measures recommended as far back as 1996. Burien called on the Port to engage in an honest discussion about how much airport growth is sustainable given the health and quality-of-life impacts on surrounding communities.

In August 2019, the City of Burien sent a draft letter to the Port of Seattle raising eight pointed questions about Seattle-Tacoma International Airport's handling of aircraft noise, air quality, and community impact. The letter challenges the Port's failure to conduct comprehensive noise studies since 2002, its slow implementation of sound insulation programs, and its prioritization of airport expansion planning over legally recommended noise mitigation measures. Burien officials conclude that the Port has not treated compatibility with surrounding communities as a genuine priority, citing decades of unaddressed recommendations dating back to a 1996 Expert Arbitration Panel report.

The Seattle-Tacoma International Airport (Sea-Tac) Part 150 Noise and Land Use Compatibility Study, approved by the Port of Seattle Commission in October 2013 and later by the FAA, aims to identify and reduce aircraft noise impacts on surrounding communities. The study developed noise exposure maps for 2013 and projected 2018 conditions, evaluated air traffic control procedures, and considered land use controls to limit noise-sensitive development in high-noise areas. Sea-Tac is recognized for having one of the most comprehensive airport noise reduction programs in the nation, with measures including a 'fly-quiet' program and sound insulation assistance for affected residents.

In a June 2019 letter, Sea-Tac Airport Managing Director Lance Lyttle invited Federal Express to participate in the Late Night Noise Limitation Program, a new initiative designed to reduce aircraft noise between 12:00 a.m. and 5:00 a.m. The program monitors noise levels using four airport noise monitors, with thresholds set at 91 decibels for departing aircraft and 82–89 decibels for arriving aircraft, and publicly reports quarterly data on airlines that exceed these limits. Airlines are also encouraged to reduce late-night operations, switch to quieter aircraft, or reschedule flights, with noise exceedances factored into Sea-Tac's annual Fly Quiet Awards scoring.