TagStantec(27)
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2020-05-29
Stantec Sea-Tac Airport Communities Impact Study: Section 12 – Public Health (Pages 285–307)
This 2020 public health study examines the effects of Seattle-Tacoma International Airport operations on nearby communities, analyzing health indicators such as cancer, heart disease, and Alzheimer's disease death rates between 2012 and 2016. Study area cities like Burien, Des Moines, Federal Way, SeaTac, and Tukwila generally showed higher cancer and heart disease death rates than King County as a whole, though rates declined somewhat over the period. The report aims to identify whether airport operations contributed to adverse health outcomes and recommends strategies for ongoing investigation and mitigation. -
2020-05-29
Section 11: Public Safety — Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
A 2020 study examined how Seattle-Tacoma International Airport has affected quality of life in nearby communities over the past two decades, looking at public safety, health, and socioeconomic conditions across three time periods: 1997, 2009, and 2019. The study built on a 1997 report that found airport neighbors bore disproportionate burdens—including lower property values, higher social service demand, and increased noise and pollution—while regional benefits largely bypassed them. Key findings confirm that many of those predicted adverse effects, such as shifts from owner-occupied to rental housing and rising service costs, have continued to materialize in communities closest to the airport. -
2020-05-29
Study of the Current and Ongoing Effects of the Operation of the Seattle-Tacoma International Airport
A comprehensive study examining the current and ongoing effects of Seattle-Tacoma International Airport operations. The study was prepared for the Washington State Department of Commerce as authorized by ESSB 6032 and conducted by Stantec consulting firm. -
2020-05-29
Study 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
Study of the current and ongoing effects of the operation of the Seattle-Tacoma International Airport
This May 2020 report, prepared by Stantec for the Washington State Department of Commerce under legislative authorization ESSB 6032, examines the current and ongoing effects of operating Seattle-Tacoma International Airport (Sea-Tac). It assesses a range of impacts on surrounding communities resulting from airport operations. The study serves as a key resource for policymakers evaluating noise and other environmental effects associated with Sea-Tac's continued operation. -
2020-05-29
Appendix 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. -
2020-05-29
Surface water quality: Study of the current and ongoing effects of the operation of the Seattle-Tacoma International Airport
This report examines how Seattle-Tacoma International Airport has affected nearby surface water quality from 1997 to 2019, focusing on streams, wetlands, and stormwater systems that receive runoff from airport property. Researchers analyzed water quality data from multiple airport drainage outfalls — measuring pollutants such as copper, zinc, glycols, and turbidity — using records submitted to Washington State environmental regulators. The study also tracks how major airport developments, including the construction of a third runway, have influenced local waterways like Miller Creek, Walker Creek, and Des Moines Creek. -
2020-05-29
Sea-Tac Airport Communities Impact Study: Appendix A, Section 7 – Mobility
This 2020 report examines how Seattle-Tacoma International Airport has affected mobility in surrounding communities between 1997 and 2019, focusing on traffic congestion, residential parking, and pedestrian access. It documents major infrastructure changes such as the 2010 consolidation of rental car facilities to an off-site location 1.5 miles from the terminal and the expansion of the main parking garage from 10,000 to roughly 13,000 spaces. The analysis draws on data from government agencies including the Port of Seattle, WsDOT, Sound Transit, and King County Metro to identify transportation impacts and recommend future tracking measures. -
2020-05-29
Sea-Tac Airport Communities Impact Study: Air Quality Analysis (Section 6, Appendix A)
This 2020 study examines how Seattle-Tacoma International Airport affects regional air quality, reviewing data from 1997 to 2018 collected across 13 monitoring stations within a 15-mile radius of the airport. It finds that King County consistently meets federal, state, and regional air quality standards for pollutants such as ozone, carbon monoxide, nitrogen dioxide, and particulate matter. In fact, pollution levels have generally decreased over time, leading authorities to shut down some monitoring stations near SeaTac due to consistently low readings. -
2020-05-19
Burien Airport Committee meeting agenda, May 19, 2020
The Burien Airport Committee held a virtual meeting on May 19, 2020, to discuss airport-related policy matters, including a proposed letter to Port Commissioners about a 'new normal' for airport operations, comments on a Department of Commerce report, and a possible invitation to an FAA Community Ombudsperson. Draft minutes from the April 21, 2020 meeting were also reviewed, covering Chair Tosta's Washington, D.C. visit to advocate for a comprehensive cumulative impact assessment of the Port of Seattle's Sustainable Airport Master Plan (SAMP). The meetings, held via Zoom due to COVID-19 restrictions, reflect ongoing community and city council efforts to address noise and environmental concerns related to Sea-Tac Airport.