TagPort Of Seattle(2405)

This document maps the Part 150 Noise Monitoring Locations surrounding Seattle-Tacoma International Airport, as prepared by the Port of Seattle in August 1998. It identifies dozens of measurement sites categorized as permanent, semi-permanent, or temporary, spread across communities north and south of the airport including Burien, Des Moines, Normandy Park, Mercer Island, and as far north as the University District. Each site is listed with its specific street address or intersection, providing a detailed geographic record of how aircraft noise was tracked across the wider Seattle-Tacoma region.

A 1998 internal email from Ken Ludwa to Sabina Renn requests a literature search on best management practices (BMPs) for removing copper from stormwater, associated with a Port of Seattle project. The email provides an extensive list of search keywords covering filtration, chemical treatment, and various water-treatment technologies such as ion exchange, electrodialysis, and reverse osmosis. It also asks the library to locate two EPA publications on drinking water treatment for small communities.

In July 1998, the Washington State Department of Ecology issued a Water Quality Certification and Coastal Zone Consistency Determination (Order #96-4-02325) to the Port of Seattle for construction of a third runway and other improvements at Seattle-Tacoma International Airport. The project would impact between 8 and 12 acres of wetlands, 980 linear feet of Miller Creek, and 2,280 linear feet of unnamed tributaries, requiring mitigation measures including stormwater management enhancements, stream restoration, floodplain improvements, and construction of 16 to 24 acres of replacement wetlands in Auburn, Washington. The certification was granted with specific conditions and penalties for non-compliance, reflecting concerns about environmental damage to local waterways.

A July 1998 draft report prepared by Parametrix, Inc. for the Port of Seattle outlines a Stormwater Quality Management Plan for Sea-Tac International Airport's Master Plan improvements, including the proposed Third Runway. The plan documents why the Port chose bioswales over other Best Management Practice (BMP) alternatives, such as underground vaults, for managing stormwater runoff quality. The document was shared internally via email between Parametrix engineer Ken Ludwa and Jim Thomson for review and comment.

King County Superior Court Memorandum Ruling by Judge Robert H. Alsdorf on Application of WAC Chapter 365-195 (Procedural Criteria for Adopting Comprehensive Plans and Development Regulations) in consolidated cases No. 96-2-20357-2 KNT, No. 97-2-13908-2 KNT, No. 97-2-22276-1 KNT, No. 98-2-04911-1 KNT. City of Des Moines, Airport Communities Coalition, and other plaintiff-petitioners argued against the Port

A 1998 internal email exchange between Ken Ludwa and Kerry Ritland discusses edits to Section 4.3 of a stormwater management report related to Sea-Tac Airport. The section covers water quality facilities, explaining that new stormwater detention facilities would follow state Ecology guidelines using biofiltration and permanent water quality storage, while also complying with the Port's NPDES permit and Stormwater Pollution Prevention Plan (SWPPP). Ken Ludwa agreed to edit the section to reference Appendix F – Water Quality BMP Analysis once that appendix was further developed.

This Port of Seattle glossary defines key acoustic and air traffic control terms used in airport noise policy discussions. It explains measurements like decibels (dB), A-weighted decibels (dBA), and the Day-Night Noise Level (DNL), which is a 24-hour average used to map noise exposure around Sea-Tac Airport. It also covers Federal Aviation Regulations (Parts 36, 91, and 161) that govern aircraft noise standards, phase-out schedules for older noisy aircraft, and the process for airports to adopt new noise rules.

Draft Working Paper One of the Seattle-Tacoma International Airport (Sea-Tac) FAR Part 150 Study, dated July 1998, prepared by Port Of Seattle. This inventory chapter updates the 1994 Part 150 program and covers airport physical facilities, air traffic operations activity, airspace/air traffic control, ANOMS radar data, current noise abatement program, noise complaint history, airport environs,

Draft Stormwater Quality Management Plan (Appendix F) prepared by Parametrix, Inc. for Port Of Seattle, July 1998, as part of the Preliminary Comprehensive Stormwater Management Plan for Sea-Tac Airport Master Plan Improvements. Covers existing drainage conditions including Storm Drain System (SDS) and Industrial Waste System (IWS), Miller Creek and Des Moines Creek receiving systems, existing

King County Superior Court Findings of Fact, Conclusions of Law and Final Order by Judge Robert H. Alsdorf in consolidated cases No. 96-2-20357-2 KNT, No. 97-2-13908-2 KNT, No. 97-2-22276-1 KNT, No. 98-2-04911-1 KNT. Challenges Port Of Seattle Resolutions 3212 and 3245 approving the Sea-Tac Master Plan Update including construction of a third runway at Seattle-Tacoma