TagSea-Tac Airport(1835)

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.

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.

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.

Commission Order 2024-04 directs the Port of Seattle to conduct an assessment of the effectiveness of previously installed Port-funded noise insulation packages, to be completed by end of 2024, involving outreach and data collection from property owners. The order authorized a tax levy-funded budget of $6.5 million, with $5 million set aside for design and construction associated with a Pilot Program.

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 Port of Seattle presentation slide 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 a property subject to the airport noise insulation program near Sea-Tac Airport.

Slide 13 of a presentation titled 'Acoustic Testing Overview and Results' shows two field photographs: an exterior loudspeaker on a tripod set up in front of a residential house, and an interior shot of a technician using a measurement microphone on a pole inside a kitchen. The setup depicts standard residential sound transmission testing methodology.

A presentation slide titled 'Next Steps' listing two bullet points: 'Implementation Workshops' and 'Design/Construction Phase.' The slide is numbered 17 and uses a teal/blue color scheme with a green and blue wave graphic at the bottom, consistent with a planning or project-status presentation.

This slide from a Seattle-Tacoma International Airport (SEA) noise remedy presentation summarizes acoustic testing procedures, stating that testing followed the FAA-approved 2017 Acoustic Testing Plan (ATP). Key metrics cited include a 70dB DNL exterior noise contour threshold within the 2014 SEA Noise Remedy Boundary and a 27dB Noise Level Reduction (NLR) example calculated from interior and façade measurements.

A presentation slide states that third-party consultants conducted field assessment and acoustic testing concurrently at 30 homes over a two-week period beginning August 19, 2024. The 30 homes were selected to reflect the distribution of manufacturers by year for sound insulation packages installed between 1986 and 2014.