TagPort Of Seattle(2611)

Low Streamflow Analysis prepared by Earth Tech, Inc. for Port Of Seattle as part of the Seattle-Tacoma Airport Master Plan Update, dated December 2000. Report covers existing streamflow conditions, watershed modeling of current and proposed conditions, hydrologic behavior of runway fill, non-hydrologic flows, secondary recharge effects, reserved stormwater release, and summary of low streamflow effects

Section 4.5.2 of the Comprehensive Stormwater Management Plan for STIA Master Plan Update Improvements, December 2000, Port of Seattle. Documents stormwater quality monitoring data from SDS outfalls (1994–2000) under NPDES Permit requirements. Table 4-8 compares STIA runoff quality against regional and national urban stormwater benchmarks including Bellevue Sturtevant Creek, Bellevue Urban Runoff Program (BURP), King

Low Streamflow Analysis prepared by Earth Tech, Inc. for Port Of Seattle as part of the Seattle-Tacoma Airport Master Plan Update, dated December 2000. AR 043961. Report covers existing streamflow conditions, watershed modeling of current and proposed conditions, hydrologic behavior of runway fill, changes in non-hydrologic flows, effects of secondary recharge, reserved stormwater release, and

Email from Ann Kenny (Ecology, Shorelands and Environmental Assistance Program) dated November 30, 2000, to Leslie Seffern (ATG) and Erik Stockdale, circulating a draft response letter to Bill Garrity, Executive Director of CECW (Consulting Engineers Council of Washington), regarding his November 22, 2000 letter challenging Ecology’s Request for Bid process for selecting a wetland consultant.

Draft Subsurface Conditions Data Report for Phase 4 Fill of the Third Runway Embankment at Sea-Tac International Airport, prepared by Hart Crowser (HartCrowser) for Port of Seattle and HNTB, dated November 29, 2000, project J-4978-28, AR 046207. Report covers generalized geologic conditions, subsurface soil conditions, hydrogeologic conditions, field exploration methods including auger borings, Standard Penetration

Final draft meeting notes from November 29, 2000 (9:30am–2:00pm) prepared by Kate Snider of Floyd & Snider Inc. for Sea-Tac Airport Third Runway 401 permit negotiations between Port Of Seattle (Elizabeth Leavitt, Michael Cheyne, Keith Smith) and Washington State Department of Ecology (Kevin Fitzpatrick, Ann Kenny, Dave Garland), with King County (David Masters, Kelly Whiting)

Memorandum dated November 27, 2000 from Dave Garland, NWRO Water Quality Program, Washington State Department of Ecology, to Ann Kenny (Shorelands and Environmental Assessment Program) and Kevin Fitzpatrick (Water Quality Program). Subject is wetland hydrology impacts from Port Of Seattle’s proposed excavation of Borrow Area 3 sand and gravel fill for the Sea-Tac Third Runway

Memorandum dated November 27, 2000 from Dave Garland, NWRO Water Quality, Washington State Department of Ecology, to Ann Kenny and Kevin Fitzpatrick regarding Sea-Tac Third Runway Borrow Area 3 wetland impacts. Addresses Port Of Seattle proposal to excavate sand and gravel from Borrow Area 3 south of Sea-Tac Airport for Third Runway fill embankment. References

Resolution No. 3443 is a Port of Seattle Commission decision that updates the Seattle-Tacoma International Airport's Noise Compatibility Program following a multi-year public review process. It adopts a range of measures to reduce aircraft noise impacts on surrounding communities, including restrictions on nighttime engine maintenance run-ups, exploration of a Ground Run-up Enclosure, noise barriers, and preferential nighttime runway use. The resolution also directs Port staff to submit these changes to the FAA for approval and to begin implementation once approved.

A November 2000 memo from Washington State Department of Ecology's Roger Nye raises concerns that the Port of Seattle failed to adequately identify potential soil and groundwater contamination sites at Sea-Tac Airport, as required by an Agreed Order. Nye outlines four key deficiencies, including the Port's failure to account for historical use of chlorinated solvents in aircraft washing, overlooked fueling facilities, and incomplete identification of contamination sources based on historical operations rather than just historical facilities. The memo calls for a thorough, honest effort to identify all potential contamination areas that could pose risks to nearby drinking water wells and surface waters.