TagACC(1531)

Email from Raymond Hellwig (Ecology) to Thomas Fitzsimmons, copied to Tom Luster and others, dated May 11, 2000, regarding a meeting arranged by Martha Choe (CTED) for May 16, 2000 between Governor Gary Locke, Wes Ulman, and Mic Dinsmore (Port Of Seattle) about the Sea-Tac Airport third runway project. Agenda items include Ecology’s timetable for

A May 2000 laboratory report from Columbia Analytical Services, Inc. presents water and sediment quality monitoring results for the Airport Communities Coalition in Richland, Washington. Samples were collected on April 19, 2000, and analyzed for metals, ammonia, pesticides, semivolatile organics, and other contaminants as part of project OO-101G. Two samples arrived broken and unusable, and one sediment sample showed elevated background components affecting Toxaphene reporting limits, though no major anomalies were found in the remaining analyses.

Port Of Seattle SEPA Addendum (POS SEPA No. 00-07) dated May 5, 2000, to the Final Supplemental Environmental Impact Statement for the Proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport (STIA), issued jointly by FAA and Port Of Seattle in May 1997. Documents the Auburn Wetland Mitigation Project on an approximately 67-acre parcel

Northwest Hydraulic Consultants submitted follow-up technical comments in May 2000 raising serious concerns about flawed stormwater modeling used to assess the impact of a proposed third runway at Seattle-Tacoma International Airport. The consultants identified major inconsistencies in soil-type assumptions and runoff parameters in the hydrologic models, concluding that the Stormwater Management Plan's predictions of detention facility performance were unreliable and required a complete overhaul. The letter also flagged a lack of adequate local regulatory oversight to ensure that Port of Seattle stormwater designs complied with King County surface water standards.

A technical review by Northwest Hydraulic Consultants, submitted to the U.S. Army Corps of Engineers and Washington State Department of Ecology in May 2000, raises serious concerns about the stormwater management plan for Seattle-Tacoma International Airport's proposed third runway. The report identifies major flaws in the hydrologic modeling used to assess drainage impacts, including inconsistent soil-type assumptions and unreliable flow predictions for Miller Creek. The consultants call for a complete overhaul of the modeling process, independent technical review, and clearer regulatory oversight of the Port of Seattle's stormwater design work.

Memorandum dated May 3, 2000 from Jim Kelley (Wetland Ecologist, Parametrix Inc.) to Jonathan Freedman (U.S. Army Corps of Engineers), cc Elizabeth Leavitt (Port of Seattle), analyzing indirect impacts to wetlands from the temporary SR-509 interchange at South 176th Street near Seattle-Tacoma International Airport. Concludes no significant indirect impacts to Wetland 43 or Wetland 44

In a May 2, 2000 email exchange regarding Sea-Tac Airport runway issues, Martha Choe updates John Savich on her efforts to coordinate between key stakeholders, noting she has spoken with Joe and attempted to reach Tom but received no response. She has arranged a meeting tentatively scheduled for May 16 at 2pm, bringing together the Governor's office, the Port, AWB, and unions to help move the runway matter forward. John had suggested that a high-level commitment to major milestones between DOE's Tom F. and Gina Marie was needed to give existing deadlines real weight.

Final report prepared by Scott Tobiason, Aviation Environmental Programs, Port Of Seattle, documenting Stormwater Whole Effluent Toxicity (WET) testing at Seattle-Tacoma International Airport (STIA), May 2000. AR 044473. Covers WET testing background, sampling methods, STIA storm drainage subbasins, source-tracing of SDN1 outfall, chelation testing, synthetic runoff WET test results, field investigations, and NPDES stormwater discharge

Letter dated April 27, 2000 from Ann E. Kenny, Senior Permit Specialist, Washington State Department of Ecology (Northwest Regional Office), to William A. Rozeboom and K. Malcom Leytham of Northwest Hydraulic Consultants, Inc. Responds to their April 11, 2001 letter to Gordon White concerning Ecology’s review of Port Of Seattle’s December 2000 Low Streamflow Analysis.

This April 2000 draft memorandum from the Port of Seattle summarizes range-finding toxicity tests conducted to evaluate water-effect ratios (WERs) for copper in streams receiving stormwater runoff from Seattle-Tacoma International Airport (STIA). Water samples were collected from five sites—including Miller Creek and Des Moines Creek—during a storm event on April 15, 2000, and tested using Daphnia magna to measure how site water chemistry affects copper toxicity compared to clean laboratory water. The results were intended to help determine whether full definitive WER studies were warranted, which could support the establishment of site-specific water quality standards for copper in receiving streams.