TagThird Runway(1084)

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

A June 30, 1998 email from John Rogers of CH2M to Thomas Hubbard and Ken Ludwa provides a website link (www.stormwatermgt.com) for a compost filter vendor, noting the company had recently changed its name. Rogers mentions that the vendor would be sending additional product information by overnight mail and water quality data by fax the following day. The correspondence relates to stormwater management and water filtration research being conducted in connection with Port of Seattle operations.

A June 1998 internal email from Ken Ludwa to Jim Kelley includes spreadsheet data comparing removal efficiency percentages for various pollutants—including solids, phosphorus, nitrogen, BOD, iron, lead, zinc, copper, bacteria, and total petroleum hydrocarbons—across multiple published studies from the 1980s and 1990s. The tables compile findings from sources such as Marselek et al. (1996), Metro (1992), and the UW Short Course, and conclude with recommended removal efficiency values for each pollutant category. This document appears to relate to Best Management Practices (BMPs) for stormwater treatment, likely in the context of environmental review for airport-related runoff management.

Port Of Seattle response to public and agency comments on Army Corps of Engineers Public Notice Permit Reference No. 96-4-02325 for Master Plan Development Actions at Seattle-Tacoma International Airport. AR035118/AR035119. Addresses six major concerns: EPA/COE MOA wetland impact sequencing and compensatory mitigation; justification for out-of-watershed mitigation (Auburn wetland) for wildlife habitat; South Aviation Support Area

Comment Binder A compiled by Port of Seattle for Sea-Tac Airport (Seattle-Tacoma International Airport) third runway project, containing letters submitted to the U.S. Army Corps of Engineers during the initial comment period (December 19, 1997 to January 20, 1998) and comments from the joint Corps/Ecology public hearing held April 9, 1998. Includes a January 15,

A 1998 letter from Fisheries Consultants to the U.S. Army Corps of Engineers concludes that SeaTac Airport's proposed Third Runway will have an overall neutral effect on aquatic habitat and fish populations in Miller Creek. Minor benefits are expected from new storm flow detention facilities, which will reduce peak flood flows by 5–20%, and from a planned 100-foot-wide stream buffer created through residential buyouts along the creek. Adverse impacts are limited to the temporary disruption of a quarter-mile creek relocation and an approximate 8% reduction in late-summer low stream flows due to increased paved surfaces and wetland fill.

A April 6, 1998 internal memorandum from Paul Tappel to Jim Kelley identifies minor technical inconsistencies and questions in the Sea-Tac Airport JARPA permit application, focusing on discrepancies in engineering drawings, stream buffer widths, channel elevation profiles, and hydraulic calculations for a proposed Miller Creek relocation. Tappel raises concerns that the plan overstates the environmental benefits of the reconstructed creek channel and contains contradictory goals regarding wildlife habitat and airport bird-strike safety. He notes these issues are not critical to the overall assessment but could cause confusion as the design moves forward.

A March 1998 fax exchange between the Port of Seattle and Herrera Environmental Consultants concerns the scope of work and cost estimates for Third Runway Water Quality Compliance Services. Carlos Herrera of Herrera Environmental sent documents to Port of Seattle contacts Barbara Hinkle and Kym Mattress, arguing that routine project water quality monitoring should be Herrera's responsibility, covering both compliance and BMP performance monitoring. Herrera noted he believed this approach would be most credible to the Washington Department of Ecology and neighboring airport communities, and requested review and discussion of the cost estimates to potentially reduce the budget.

This 1998 newsletter from the Regional Commission on Airport Affairs covers several controversies surrounding Sea-Tac Airport's expansion, including a 24% cost overrun on the new parking garage, Port staff admitting they lack the capacity to manage over 100 simultaneous expansion projects, and the Highline School District launching an independent study of airport noise impacts on classrooms after failed negotiations with the Port. Additional issues covered include a proposed wetlands destruction permit for the third runway site, plans to extend King County International Airport's runway closer to Georgetown neighborhoods, and legal battles over city comprehensive plans that opposed airport expansion.