TagThird Runway(1098)

In this August 3, 2001 email, Andrea Grad, a paralegal at Helsell Fetterman, submits a Public Disclosure Act (PDA) request to Ann Kenny at the Washington State Department of Ecology. Grad notes that several sections of the Port of Seattle's two-volume Low Flow Analysis — including the Introduction and the section on Determination of Impacts to Streamflow — were either incomplete or entirely missing from the copy provided by Ecology. She asks Ecology to confirm whether the Port had submitted the missing sections, and requests copies of any such materials.

In August 2001, King County's Department of Natural Resources submitted a technical review letter to the Washington Department of Ecology evaluating the Port of Seattle's Low Flow Impact Analysis and proposed offset facilities for stormwater management near Sea-Tac Airport. The review found the proposal goes well beyond the basic requirements of the King County Surface Water Design Manual and represents substantial mitigation for low flow impacts in affected drainage basins, including Miller and Walker Creeks. Reviewers noted several inconsistencies and data gaps in the documentation and recommended that a final consolidated document be prepared incorporating all corrections and technical memoranda.

This August 2001 draft document outlines Water Quality Certification conditions for Sea-Tac International Airport (STIA), requiring the Port of Seattle to implement a Comprehensive Stormwater Management Plan covering treatment, flow control, and retrofitting of stormwater facilities. Key requirements include obtaining Ecology approval before discharging operational stormwater to state waters, conducting a Water Effects Ratio Study, and ensuring all runoff from impervious surfaces is treated using all known available and reasonable treatment methods. The Port must also retrofit existing stormwater facilities at a rate proportional to new impervious surface construction, with progress documented in quarterly reports.

In August 2001, King County's Department of Natural Resources wrote to the Washington Department of Ecology confirming that the Port of Seattle's Comprehensive Stormwater Management Plan for Sea-Tac International Airport Master Plan improvements met the technical requirements of the 1998 King County Surface Water Design Manual. The review found that the plan demonstrated a feasible conceptual strategy for managing stormwater from proposed airport construction projects. Reviewers noted that while the plan showed compliance with design standards, additional oversight and monitoring would be needed as individual projects moved from planning into construction.

This August 2001 draft document outlines Water Quality Certification conditions (#1996-4-02325) governing stormwater management at Seattle-Tacoma International Airport (Sea-Tac). It sets requirements for the Port of Seattle to implement and maintain a Comprehensive Stormwater Management Plan, including retrofitting existing impervious surfaces, meeting state water quality standards, and obtaining Ecology approval before discharging stormwater to receiving waters. The document also addresses scheduling, flow control benchmarks, and the use of all known available and reasonable treatment methods (AKART) for runoff from impervious surfaces.

Email from Dianne Pastore, Ecology Director’s Office, to Raymond Hellwig and Curt Hart (cc: Thomas Fitzsimmons, Sheryl Hutchison) requesting briefing materials for Tom Fitzsimmons’ meeting with the Governor and Paul Isaki on the SeaTac 3rd Runway Project. Materials requested by Dennis Clark, Governor’s Office, by COB Tuesday August 7, 2001. AR 017821, Exhibit 96.

Internal email from Ann Kenny (Ecology) to Ching-Pi Wang, cc Steve Alexander (ECY) and Raymond Hellwig, dated August 2, 2001, transmitting deliberative draft Section 401 water quality certification conditions F1–F4 for the Sea-Tac Airport (STIA) Third Runway Master Plan Update. Conditions address prevention of contaminated groundwater transport from the Airport Maintenance and Operations Area via

Internal email chain dated August 1, 2001 among Washington Department of Ecology staff Thomas Fitzsimmons, Sheryl Hutchison, Dianne Pastore, and Raymond Hellwig regarding communications strategy around the Sea-Tac Airport third runway decision. Topics include scheduling media availability, coordinating with the governor and Isaki, Port Commission meeting on August 14, E-Board contact timing, press attendance at

A declaration by civil engineer William A. Rozeboom, filed with Washington's Pollution Control Hearings Board, raises concerns about the environmental impact of Seattle-Tacoma International Airport's Third Runway construction project. Rozeboom, a stormwater and hydraulics expert retained by the Airport Communities Coalition, warns that the project will reduce low streamflows in Des Moines, Miller, and Walker Creeks during summer months due to increased impervious surfaces and changes to the industrial wastewater system. While the July 2001 Stormwater Management Plan addresses peak flood flows, Rozeboom argues it fails to adequately assess or mitigate the project's impact on low-flow stream conditions.

Sand and Gravel Stormwater Pollution Prevention Plan (SWPPP) prepared by Parametrix, Inc. for Port of Seattle, covering Borrow Areas 3 and 4 of the Third Runway Project at Seattle-Tacoma International Airport. Prepared August 2001, approved by Michael Feldman, Director of Aviation Facilities, Port of Seattle. Document checked by Paul Fendt, P.E. and prepared by Julie