TagThird Runway(1098)

Agenda for Port Of Seattle Third Runway Flow Augmentation/Water Rights meeting dated October 31, 2000, with handwritten notes. Attendees included Port Of Seattle, Department of Ecology, Attorney General’s Office, and Seattle Public Utilities (SPU). Topics covered potential sources of stream flow augmentation water for Des Moines Creek: SPU Highline Well Field, Highline Water District Well

This October 31, 2000 agenda document outlines a meeting between the Port of Seattle, the Department of Ecology, the Attorney General's Office, and Seattle Public Utilities to address water rights issues related to flow augmentation in Des Moines Creek, connected to the Sea-Tac Airport Third Runway project. The meeting focused on identifying potential sources of stream flow augmentation water, including the SPU Highline Well Field, Highline Water District wells, detained stormwater, and reclaimed water. Key discussion points included whether water right changes were necessary, what approvals were required from the Department of Ecology, and how to develop an action plan for resolving outstanding legal and regulatory issues.

Final draft meeting notes prepared by Kate Snider of Floyd & Snider Inc. for the Sea-Tac Airport Third Runway 401 Permit Negotiations meeting held October 31, 2000, 8:00–11:00 AM. Attendees included representatives from Washington State Department of Ecology (Ray Hellwig, Kevin Fitzpatrick, Ann Kenny), Port Of Seattle (Michael Cheyne, Elizabeth Leavitt, Keith Smith), King County

A October 30, 2000 internal memo from Erik Stockdale of Washington State Department of Ecology outlines recommended tasks for contractor Dyanne Sheldon, who was hired to evaluate the natural resource mitigation plan for a Port project near Sea-Tac Airport. The memo recommends an open-ended 'Time and Materials' contract and calls for a firewall between Sheldon and the Port, citing concerns about the Port playing Ecology and the Army Corps of Engineers against each other. Key tasks include reviewing wetland mitigation plans for the Des Moines, Walker, and Miller creek basins, evaluating stormwater consistency, and drafting Section 401 Clean Water Act permit conditions.

These draft meeting notes from October 27, 2000 document technical negotiations between the Port of Seattle and the Washington State Department of Ecology regarding the 401 Water Quality Permit for Sea-Tac Airport's Third Runway project. The meeting covered key stormwater management topics including detention sizing, base flow impacts, and the Tyee Pond buffer, with participants tracking a master list of technical issues requiring resolution before the permit could be issued. The notes reflect ongoing discussions between agency staff, Port representatives, and engineering consultants to resolve stormwater modeling, hydrology, and environmental compliance questions.

These draft meeting notes from October 27, 2000 document technical negotiations between the Port of Seattle and the Washington Department of Ecology regarding the 401 water quality permit for the Sea-Tac Airport Third Runway project. The meeting covered topics including stormwater management planning, base flow impacts, Tyee Pond buffer requirements, and staffing for permit review. A master list of technical issues was maintained to track which items had been resolved, were pending additional information, or required further discussion.

These are meeting notes from a October 27, 2000 negotiation session between the Port of Seattle and the Washington Department of Ecology regarding the 401 Water Quality Permit for Sea-Tac Airport's Third Runway project. The meeting covered technical issues including stormwater management planning, base flow impacts, and the Tyee Pond buffer, with participants tracking the resolution status of dozens of environmental compliance items. A jointly maintained master list of issues was used to document which technical concerns had been resolved, were pending additional information, or required further discussion before the permit could be issued.

This October 2000 email chain between Washington State Department of Ecology staff discusses coordination efforts regarding the Port of Seattle-SeaTac International Airport Agreed Order (A.O.) and Remedial Action Grant (RAG). The team planned a November meeting with Port of Seattle representatives to confirm completed cleanup work, agree on remaining scope, and address grant-related issues. Key action items included transmitting a Responsiveness Summary to the Port, reviewing billing records, and briefing the Ecology 401 Certification team on progress.

A 2000 engineering memorandum from HNTB and Hart Crowser advises the Third Runway Design Team against artificially increasing stormwater infiltration within the proposed runway embankment. The memo warns that enhanced infiltration would raise risks of slope instability, soil liquefaction during earthquakes, and long-term maintenance problems that could not be remedied once the embankment was built. The engineers concluded that these safety and structural risks outweighed any stormwater detention benefits that increased infiltration might provide.

Exhibit 89 (AR 017784-017785). Email chain forwarded by Raymond Hellwig (Ecology) to Ann Kenny on October 26, 2000, containing internal comments by Tom Luster (Ecology) on draft 10/20/2000 meeting notes for the Sea-Tac Airport third runway 401/404 review. Luster raises concerns about: NPDES major modification and stormwater plan for SR-509 interchange; South Access/Tyee Pond spill