TagWater Quality(475)

Draft meeting notes from June 12, 2001 status meeting on Low Stream Flow related tasks for Sea-Tac International Airport Third Runway 401 Permit Decision-Making process. Attendees included Ann Kenny and John Drabeck (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt (Parametrix), and Charles Ellingson (Pacific Groundwater Group). Topics covered:

These draft meeting notes from June 12, 2001 document a technical status meeting between the Washington Department of Ecology, King County, and the Port of Seattle regarding low stream flow analysis for the Sea-Tac International Airport Third Runway project. The group reviewed progress on hydrological modeling efforts, including HSPF and Hydrus modeling used to assess how runway embankment construction might affect nearby stream flows. Discussions also covered planned mitigation measures such as stormwater retention vaults, upcoming modeling deliverables, and a follow-up conference call that confirmed the Port team's modeling methodology was acceptable and conservative for evaluating embankment seepage.

Email chain among Craig Thompson, Kevin Fitzpatrick, Chung Yee, Peter Kmet, Ann Kenny, and Ching-Pi Wang of Ecology NWRO Water Quality Program regarding acceptable fill criteria language for the draft 401 Water Quality Certification for the Sea-Tac Master Plan Improvements project. Discusses review of previous clean fill draft language, response to Pete Kmet’s comments and

Email correspondence (June 4, 2001) from Andrea Grad, paralegal at Helsell Fetterman, to Ann Kenny at Washington State Department of Ecology (ECY), following up on a Public Disclosure Act (PDA) request for Parametrix’s 1999 draft report titled ‘Water Effects Ratio Screening Study of Seattle-Tacoma International Airport: Toxicity Evaluation of Site Water.’ The Port of Seattle

Internal deliberative emails from Kevin Fitzpatrick (NWRO Water Quality Program Section Manager) to Chung K. Yee, Ann Kenny, Ching-Pi Wang, and others at Washington State Department of Ecology regarding development of acceptable clean fill criteria language for the 401 Water Quality Certification for the Sea-Tac Airport Third Runway (Sea-Tac Master Plan Improvements project). Emails reference

Email chain (June 1, 2001) from Kevin Fitzpatrick, Section Manager, Water Quality Program NWRO, to Ann Kenny and Ching-Pi Wang, cc Raymond Hellwig and Steve Alexander (Ecology), forwarding deliberative draft language for clean fill criteria in the 401 Certification for Sea-Tac Airport Third Runway construction. Includes August 24, 2000 email from Fitzpatrick to Tom Luster

Washington State Department of Ecology Northwest Regional Office letter dated May 29, 2001, to Michael D. Feldman, Director of Aviation Facilities, Port Of Seattle, modifying NPDES Permit No. WA-002465-I for Seattle-Tacoma International Airport (expiration July 30, 2002). Modification authorizes discharge of construction stormwater to Walker Creek including tributaries and Gilliam Creek including tributaries; adds monitoring

Final draft meeting notes prepared by Kate Snider (Floyd & Snider Inc.) from a May 9, 2001 technical meeting on Low Flow Analysis for the Sea-Tac Airport Third Runway 401 Permit Decision-Making process. Attendees included Ann Kenny and Dave Garland (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port Of Seattle), Joe Brascher (AquaTerra),

Memorandum dated May 5, 2001 from Dave Garland, Ecology NWRO Water Quality Nonpoint Unit, to Ray Hellwig and Ann Kenny, through Kevin Fitzpatrick, documenting an April 20, 2001 meeting with Pony Ellingson and Crispin Prahl of Pacific Groundwater Group (PGG) regarding the ‘slice model’ (PGG, June 2000) integration methods for estimating 3rd runway embankment drainage

Memorandum dated May 5, 2001 from Dave Garland, Ecology NWRO Water Quality Nonpoint Unit, to Ray Hellwig and Ann Kenny, through Kevin Fitzpatrick, documenting an April 20, 2001 meeting with Pony Ellingson and Crispin Prahl of Pacific Groundwater Group (PGG) regarding ‘slice model integration’ for the proposed 3rd runway embankment at Sea-Tac Airport. Discusses Hydrus