Airport’s Part 150 Noise Study Workshop Is Wednesday, Feb. 24th

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A public workshop for Sea-Tac Airport’s Part 150 Noise Study is scheduled for Wednesday, Feb. 24th, from 5pm – 7pm at Mount Rainier High School, which is located at 22450 19th Ave South in Des Moines.

The Part 150 Study looks at ways to reduce aircraft noise impacts on communities. Throughout the study, the public is invited to participate in the solution and recommendation process through active engagement in a series of topical workshops.

For more information, visit the dedicated Part 150 Study website here that has been established as the single location for all documentation connected to the study.

Up to six additional public workshops will be held throughout the Part 150 Study process. This first meeting will introduce and orient the participants to the Part 150 process as well as further “scope” the study itself. In order to do that, the consultants will facilitate small group discussions with the participants to talk about their concerns and what they are hoping to see included in the study. Records of these sessions and the input received will be kept and factored into the study. The Port will soon launch an advertising campaign publicizing the meeting and they will make sure the members of the Forum get additional information.

Public workshops are not the only vehicle that will be used to engage the public. The Port wants to make sure community leaders, such as the members of the Highline Forum, and the general public has ample opportunity to review the status of the project and offer their thoughts and recommendations. The Port will be providing just that at the regular Highline Forum meetings. In addition, the Part 150 Study team will be available to attend a City Council meeting or meet with the representatives of a specific neighborhood or organization.

There will be a public hearing and comment period at the end of the process. More information will be provided at that time when there is a fully developed set of recommended actions.

More info available at these links:

According to the Port’s Part 150 website:

The Part 150 Study process is designed to identify noise incompatibilities surrounding an airport, and to recommend measures to both correct existing incompatibilities and to prevent future incompatibilities. For Part 150 Study purposes, noise incompatibilities are defined as residences or public use noise-sensitive facilities (libraries, churches, schools, nursing homes, and hospitals) within the 65 Day-Night Average Sound Level (DNL) noise contour.

The purpose for conducting a Part 150 Study is to develop a balanced and cost-effective plan for reducing current noise impacts from the airport’s operations, where practical, and to limit additional impacts in the future.

Among the general goals and objectives addressed by a Part 150 Study are the following:

  • To reduce, where feasible, existing and forecasted noise levels over existing noise-sensitive land uses;
  • To reduce new noise-sensitive developments near the airport;
  • To mitigate, where feasible, adverse impacts in accordance with Federal guidelines;
  • To provide mitigation measures that are sensitive to the needs of the community and its stability; and
  • To be consistent, where feasible, with local land use planning and development policies.

Specific goals for this Part 150 Study include the following:

  • To address noise issues related to the third runway;
  • To conduct the process in an open and engaging way; and
  • To look for opportunities that have not been thought of versus re-visiting old issues.

This study will identify existing and future flight corridors, develop aircraft noise exposure maps for current and future conditions, evaluate air traffic control procedures that could be implemented to reduce noise exposure over residential areas, consider land use controls that could be established to reduce future incompatible land uses from being developed within high noise areas, and evaluate means to mitigate noise impacts within high noise exposure areas.

It is anticipated that the Part 150 Study will be completed in late 2011. After completion, it will be submitted to the FAA. The review period by the FAA is typically 6-9 months.

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