TagSea-Tac Airport(2026)
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2020-05-29Stantec 2020 Sea-Tac Airport Impact Study: Appendix A, Section 4 – Community Input (pp. 41–43)
Appendix A, Section 4 of the Stantec-authored 2020 study on current and ongoing effects of Seattle-Tacoma International Airport operations, covering community input methodology and findings. Documents 48 stakeholder interviews conducted June–July 2019 across study area cities including SeaTac and Tukwila. Summarizes benefits (economic development, tourism, hotel tax revenue, Westfield Southcenter Mall, Port of Seattle employment, -
2020-05-29Section 11: Public Safety — Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
Section 11 of the 2020 Stantec study examining public safety quality-of-life conditions in communities surrounding Sea-Tac Airport, covering the period 1997–2019 with focus on 1997, 2009, and 2019 benchmarks. Analyzes violent crimes, property crimes, motor vehicular theft, human trafficking, and illegal drug trafficking in study area cities including Burien, Des Moines, Federal Way, and Tukwila -
2020-05-29Stantec Sea-Tac Airport Communities Impact Study: Section 2 – Background (Appendix A, pp. 9–11)
This background section traces the history of Seattle-Tacoma International Airport from its origins as a World War II military airfield to its current status as the eighth busiest U.S. airport, handling 51.8 million passengers in 2019. It covers key milestones including the airport's 1949 opening for commercial service, the controversial addition of a third runway in 2008, and the surrounding communities that have been affected by the airport's growth. The document also outlines the Port of Seattle's future expansion plans under its Sustainable Airport Master Plan, which aims to accommodate nearly 500,000 operations and 56 million passengers annually by 2027. -
2020-05-29Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport: Appendix A, Section 10 – Light
This section of a 2020 study examines how the operation of Seattle-Tacoma International Airport affects nighttime light conditions in surrounding communities, using satellite imagery data collected between 1998 and 2018. Researchers analyzed 'skyglow' — light pollution caused by electric fixtures and light reflected off surfaces like roads and parking lots — across the broader Central Puget Sound region. The study notes that nighttime light emission readings can vary by 15–20% due to factors such as weather, seasonal vegetation, and imaging conditions, and it identifies specific light fixture types that contribute most to sky glow. -
2020-05-29
Stantec Sea-Tac Airport Communities Impact Study: Section 2 – Background (Appendix A, pp. 9–11)
Background section of the 2020 Stantec study on current and ongoing effects of Seattle-Tacoma International Airport (Sea-Tac Airport) operations, prepared for the Washington State Department of Commerce. Covers shared regional history including Muckleshoot, Puyallup, Duwamish, and Suquamish tribal heritage; Port of Seattle founding in 1911; Boeing Company origins with William Boeing and Conrad Westervelt’s 1916 -
2020-05-29Section 1: Introduction — Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
A 2020 Washington State study, funded by the legislature and six nearby cities with a combined $600,000 budget, examines how Seattle-Tacoma International Airport's operations have historically affected surrounding communities including Burien, Des Moines, Federal Way, Normandy Park, SeaTac, and Tukwila. Unlike a similar 1997 study that projected future impacts from a proposed third runway, this study reviews historical data from 1997 to 2019 to establish a baseline of airport-related impacts across a range of metrics. The study area covers about 61 square miles and is home to over 237,000 residents, a population density roughly 3.3 times greater than the King County average. -
2020-05-29
Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport: Appendix A, Section 10 – Light
Stantec-authored Appendix A, Section 10 of the Department of Commerce 2019 Sea-Tac Airport Communities Impact Study, dated 29 May 2020. Covers nighttime light emissions and sky glow associated with Seattle-Tacoma International Airport operations, using NOAA/DMSP satellite data (1992–2013) and VIIRS DNB data (2012–2018) processed via lighttrends.lightpollutionmap.info. Analyzes light intrusion across the study area including Burien, -
2020-05-29
Section 1: Introduction — Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
Section 1 (Introduction) of the 2020 Stantec study commissioned by the Washington State Department of Commerce under ESSB 6032, evaluating the current and ongoing effects of Seattle-Tacoma International Airport operations on surrounding communities. Covers the legislative basis (ESSB 6032, Section 127(63), enacted 2018), the $600,000 funding split between state and six airport-area cities (Burien, Des -
2020-05-29Appendix A, Section 9: Groundwater and Soil Quality — Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
This 2020 environmental study examines groundwater and soil quality at and around Seattle-Tacoma International Airport from 1997 to 2019, tracking changes in contamination levels and evaluating whether they stem from airport operations, other pollution sources, or stormwater runoff. The report draws on data from the Port of Seattle, surrounding cities, and state environmental agencies to assess the effectiveness of the airport's cleanup efforts and identify any contamination that may have spread beyond airport property. The underlying geology—dense glacial till soils—generally slows the movement of contaminants through the ground in the area. -
2020-05-29Section 14: Summary — Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
A 2020 study evaluated the positive, negative, and neutral effects of Seattle-Tacoma International Airport on six nearby cities — Burien, Des Moines, Federal Way, Normandy Park, SeaTac, and Tukwila — using data spanning 1997 to 2019. The study found that noise was the top public concern, followed closely by air quality issues from aircraft operations, along with traffic congestion and distrust of the FAA and Port of Seattle. Researchers attempted to distinguish between impacts directly caused by airport operations and those resulting from the broader regional population growth that roughly doubled over the same period.