TagPort Of Seattle(2403)

These draft meeting notes from July 9, 2001 document a technical working session between the Port of Seattle, Washington Department of Ecology, and King County regarding low stream flow analysis for the Sea-Tac International Airport Third Runway project. The group discussed methods for determining low flow impacts on fish habitat, reviewed a mitigation proposal for the Des Moines Watershed involving a 0.1 cfs compensatory flow release from July 24 through October 24, and received a status briefing on the Miller and Walker watershed analyses. Key topics included the use of 2-year 7-day low flow rates to calculate mitigation requirements, reserve vault sizing, and how to handle non-hydrologic effects such as water rights removal and septic system impacts in the property acquisition area.

These draft meeting notes from a July 9, 2001 technical meeting cover low flow analysis related to the 401 Permit decision-making process for Sea-Tac International Airport's Third Runway project. Attendees from the Department of Ecology, King County, Port of Seattle, and several consulting firms discussed methods for determining low stream flow impacts and mitigation requirements across affected watersheds. Key topics included biological effects on fish habitat, a proposed 0.1 cfs mitigation flow for the Des Moines Watershed, and the use of 2-year 7-day low flow rates to guide mitigation planning.

In a July 6, 2001 internal email, Ann Kenny outlines the technical information that the Washington State Department of Ecology required before approving any mitigation approach for low-flow water impacts related to a Port project. The requested materials included hydrological modeling files, 7-day low-flow analysis data comparing pre- and post-project conditions, a formal mitigation volume proposal, and documentation on the feasibility of vault filling as a mitigation method. Ecology also indicated that written documentation of outcomes would be required following a scheduled July 9 meeting with the Port.

A July 2001 letter from environmental consultant John Strand raises concerns that the Port of Seattle accepted chemically contaminated soil fill for the proposed third runway at Seattle-Tacoma International Airport. Testing revealed petroleum hydrocarbons (TPH) in soil from Black River Quarry that exceeded cleanup standards, yet the Port transferred the soil to the airport anyway and delayed reporting the results. The letter argues that the Port's Soil Fill Acceptance Criteria are seriously flawed and that approving the project under the Clean Water Act would be ill-advised.

Final draft meeting notes from July 5, 2001 technical meeting on 401 Permit Decision-Making for the Sea-Tac Airport Third Runway, prepared by Rachel McCrea of Floyd & Snider Inc. Attendees include Ann Kenny (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Felix Kristanovich (Foster Wheeler), Paul Fendt and Tom Atkins (Parametrix),

Water Resources Consulting LLC submitted technical comments in July 2001 on behalf of the Airport Communities Coalition, challenging the Port of Seattle's stormwater management plans for SeaTac Airport expansion. The document disputes Port claims about impervious surface increases, water diversions affecting Miller, Walker, and Des Moines creeks, and the effectiveness of bioswale filtration systems for removing pollutants such as metals from airport runoff.

Port Of Seattle memo opposing Airport Communities Coalition (ACC) motion for stay in PCHB No. 01-133, Volume 2 of 3, containing Declaration of Paul S. Fendt and SMP Volume 3 materials. Includes preface to the Comprehensive Stormwater Management Plan (SMP) for Seattle-Tacoma International Airport Master Plan Update Improvements, July 2001, with replacement pages developed in

The Port of Seattle recorded this Declaration of Restrictive Covenants to permanently protect the Tyee Valley Golf Course Mitigation Area as a natural wetland, as required by the Washington State Department of Ecology and the U.S. Army Corps of Engineers in connection with the construction of Sea-Tac Airport's third runway. The declaration prohibits clearing, grading, filling, and construction within the mitigation area, with limited exceptions for approved wildlife management, monitoring, maintenance, and stormwater infrastructure. It was established to satisfy federal Clean Water Act requirements and state water quality standards by preserving and enhancing wetland and riparian habitat displaced by airport expansion.

Final draft meeting notes prepared by Rachel McCrea of Floyd & Snider Inc. for 401 Permit Decision-Making technical meetings on June 25 and June 27, 2001, regarding Sea-Tac International Airport Third Runway. Attendees included Ann Kenny and John Drabek (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt and Tom

Email from Chung K. Yee to Kevin Fitzpatrick, cc Craig E. Thompson and Ann Kenny, dated June 26, 2001, transmitting draft fill criteria language for a 401 Certification related to the Port Of Seattle Third Runway embankment project. Fill criteria are based on Method A table, 3-phase model protection of ground water and surface water,