TagACC(1534)

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. 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

Wetland Functional Assessment and Impact Analysis prepared by Parametrix, Inc. (Kirkland, Washington) for Port Of Seattle, Seattle-Tacoma International Airport, December 2000, project number 556-2912-001 (03). Document filed in PCHB No. 01-133, received October 1, 2001 by Environmental Hearings Office, submitted as part of Port of Seattle’s Memo Opposing ACC’s Motion for Stay, Declaration of James

Final Natural Resource Mitigation Plan prepared by Parametrix, Inc. for Port Of Seattle covering Master Plan Update Improvements at Seattle-Tacoma International Airport, dated December 2000. Filed as part of PCHB No. 01-133, Port of Seattle’s memo opposing ACC’s motion for stay, Volume 3 of 3, received by Environmental Hearings Office on October 1, 2001. Includes

This December 2000 report by Parametrix, Inc. for the Port of Seattle presents a Comprehensive Stormwater Management Plan for Master Plan Update improvements at Seattle-Tacoma International Airport. It maps the airport's drainage basins, surrounding watersheds (including the Duwamish River, Des Moines Creek, and Miller Creek watersheds), and identifies pollution-generating and non-pollution-generating surfaces across the airport property. The plan outlines water quality treatment strategies for existing and proposed impervious surfaces to manage stormwater runoff from airport operations.

Supplement Biological Assessment prepared by Parametrix, Inc. (December 2000) for the Federal Aviation Administration and Port Of Seattle for reinitiation and initiation of ESA Section 7 consultation on STIA Master Plan Update Improvements. AR 049788. Document covers hydrologic impacts and mitigation for Miller Creek, Walker Creek, and Des Moines Creek watersheds, including stormwater detention facility

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

This technical document describes hydrological modeling conducted for the Seattle-Tacoma International Airport (Sea-Tac) Master Plan Update, focusing on stormwater runoff analysis for Des Moines Creek, Miller Creek, and Walker Creek subbasins. It details the calibration of computer models using rainfall and evaporation data spanning October 1948 through September 1996, along with parameters for airport embankment fill materials. The analysis was used to evaluate future stormwater detention facility requirements associated with airport expansion projects, including the Third Runway.

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.

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)