TagSIRRPP(62)

Slide 8 from a Port of Seattle / ESA 2024 report presents two tables summarizing 1,067 survey responses about sound insulation packages installed at Sea-Tac Airport. The left table compares response distribution by manufacturer (e.g., Alpine STC44 leading at 21.1%), while the right table breaks down installations by year, with Pre-1993 representing the largest share at 21.4% of survey responses, out of a total program baseline of 3,200 packages.

Slide 7 from a Sea-Tac Airport presentation titled 'Survey Overview and Results (cont.)' showing a geographic map of properties around Seattle-Tacoma International Airport color-coded by sound mitigation contractor (Other, Milgard, Alpine, CDI/Peerless/Devac). The map is dated September 2022 and includes a note directing homeowners to contact the Noise Programs office at 206-787-5393 to determine eligibility for sound mitigation programs.

Title slide for a Port of Seattle presentation dated February 26, 2025, providing an update on the Sound Insulation Repair and Replacement Pilot Program. The slide features a photograph of a single-family residence at address 12036, likely located in a Sea-Tac Airport noise-impacted neighborhood, showing newly installed windows as part of the sound insulation work.

A presentation slide titled 'Survey Overview and Results (cont.)' reporting 1,067 survey responses (over 33% response rate), with operational concerns ranging from 60–75% and glass-related concerns from 50–72% depending on product. The slide concludes that overall age and design of the finished product—not the specific year or product installed—are the key factors driving residential concerns.

Title slide for a Port of Seattle presentation dated February 26, 2025, providing an update on the Sound Insulation Repair and Replacement Pilot Program. The slide features a photograph of a residential home at address 12036, illustrating the type of property targeted by the program, which is associated with noise mitigation efforts related to Sea-Tac Airport.

A presentation slide (page 5) titled 'Survey Overview and Results (cont.)' describes EDI integration efforts including translation of survey materials into Port Tier 1 and Tier 2 languages (six additional languages), physical copies available in seven languages upon request, added demographic questions on race/ethnicity and income, and questions about residents' window/door concerns. The slide appears to be from a Port noise-related resident survey presentation, consistent with Sea-Tac Airport noise insulation program reporting.

Presentation slide titled 'Assessment Key Findings' summarizing results of a sound insulation assessment: 99% of products installed prior to 2014 are past their expected useful life, lack of replacement parts limits resident maintenance, and all tested homes (including five Pre-1993) measured under 45dB DNL interior, with sound insulation packages deemed acoustically effective despite operational and appearance concerns.

Slide 4 from a Sea-Tac Airport (SEA) presentation titled 'Survey Overview and Results,' describing a noise insulation pilot survey designed to meet Order 2024-04, conducted within the 2014 SEA Noise Remedy Boundary. Outreach included mailings to approximately 3,200 single-family homes, a Port website page, Part 150 Study public meetings in June, StART Aviation Noise Working Group updates, and a Highline Forum meeting update.

Slide 14 of a presentation on acoustic testing for a Sea-Tac Airport noise insulation program, explaining that interior DNL (calculated as Exterior DNL minus Noise Level Reduction) is the eligibility metric, with a threshold of 45dB DNL. All 30 homes tested fell below the FAA's 45dB DNL interior noise threshold, including five Pre-1993 homes evaluated under the FAA re-insulation program.

A timeline slide detailing the Pilot Program Schedule spanning February 2024 through early 2025, including key milestones such as a Commission Order (Feb 27), survey mailings (Jun–Aug 2024), Part 150 Meetings (Jun 5, 6, and 8), acoustic testing (Aug 19/30), a Draft Technical Report (Nov 22), a Final Report Approval (Dec 23), a Commission Report (January 2025), and a Design/Construction Kickoff in 2025. The slide appears to be page 3 of a presentation related to Sea-Tac Airport noise policy under FAA Part 150 procedures.