TagSea-Tac Airport(2025)

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

Administrative Record document AR046206 noting this is a duplicate of an August 2001 document, with reference to Exhibit No. 1267. The document contains no substantive content beyond the cross-reference notation.

Parametrix, Inc. report prepared for Port Of Seattle on cumulative impacts to wetlands and streams from Seattle-Tacoma International Airport Master Plan Update improvements, August 2001 (AR 050792, Exhibit 1267). Covers land use changes in Miller Creek and Des Moines Creek watersheds, wetland inventories, soil survey maps, aerial photograph analysis, stream conditions and fish habitat in

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

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

Handwritten Record of Telecon dated 7-27-01, call from Kelly Whiting (KCI), subject: low flow — Wetland 44a. Notes state no water coming from the drain to south, cut not fill on runway, third-way model over-estimated flow; Parametrix modeled at 2200; 11,000-foot estimate; embankment will provide flow except where lined; flows feeding 44a are not meeting

Letter dated July 25, 2001 from Keith R. Smith, Water Resources Manager, Port Of Seattle, to Ann E. Kenny, Washington Department of Ecology Northwest Regional Office, clarifying the Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Corrections address: embankment recharge calculation using ‘flat outwash grass’; non-contiguous groundwater contributions

Hart Crowser report (project 4978-44) prepared for HNTB documenting installation and verification results for Work Area 2 stone column test areas at the Third Runway Embankment Phase 4, SeaTac, Washington. Authored by Barry S. Chen, Ph.D., P.E. (Senior Associate Geotechnical Engineer) and John P. Laplante (Senior Staff Geotechnical Engineer). Report covers four test areas with

In a July 2001 letter to the Washington State Department of Ecology, Northwest Hydraulic Consultants raised concerns on behalf of the Airport Community Coalition that the Port of Seattle's ongoing low streamflow analyses for Des Moines, Walker, and Miller Creeks near Sea-Tac Airport were likely underestimating the airport's impact on local waterways. The consultants argued that the models were poorly calibrated for upper-basin conditions and failed to account for post-1994 improvements to the Industrial Wastewater System or the future loss of forested areas due to planned airport development. They requested that a final report on the streamflow analysis and any proposed mitigation measures be made available for public comment before Ecology used it to make its 401 Certification decision.