TagACC(1531)

A April 25, 2000 email from Martha Choe of the Washington State Community, Trade and Economic Development office to a colleague at the Department of Ecology summarizes concerns raised by the Port of Seattle regarding delays in obtaining a 401 water quality permit for Sea-Tac Airport's proposed third runway. Key issues include the FAA's unfamiliarity with Endangered Species Act requirements after taking over the review from the Army Corps of Engineers, King County's slow progress on stormwater documentation, and formatting problems that caused further delays. The email warns that if the permit is not issued by July 21, 2000, the third runway's inclusion in the regional transportation plan—and its federal funding eligibility—could be jeopardized.

A draft memorandum dated April 2000 summarizes range-finding water-effect ratio (WER) toxicity tests conducted for the Port of Seattle to measure copper levels 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 organisms to compare copper toxicity in site water versus clean laboratory water. The results were intended to determine whether more expensive definitive WER studies would be warranted, and to help establish site-specific water quality standards for copper.

In an April 2000 email, Port of Seattle executive Gina Marie Lindsey updates a Washington State Department of Ecology contact about the status of the Port's stormwater permit application related to a Comprehensive Stormwater Master Plan. She explains that while the environmental work quality was deemed strong, the submittal needed to be reformatted to meet King County's review standards rather than DOE's, with a revised package due May 5 and a County final review expected by mid-June. Lindsey also addresses concerns about potential 'piecemealing' of the permit process and expresses concern about the lengthy timeline given the County reviewer's limited weekly hours for the project.

Draft memorandum dated April 20, 2000, authored by Doug Henderson and Linda Logan (job number 556-2912-001) for Port of Seattle project files, summarizing range-finding water-effect ratio (WER) toxicity tests for copper in streams receiving Seattle-Tacoma International Airport (STIA) stormwater. Tests used Daphnia magna as indicator species; copper was spiked into site water and synthetic laboratory

Handwritten notes from a BEATAC meeting at the Port on April 20, 2000, AR018447, involving City of Des Moines personnel including Tom Walsh, Tacie Borden, John Marchiloro, Jim Kelly, and others. Topics include: stormwater review at FCC starting 5-5-00; SR-509 temporary interchange issues (ESA/BA review, Jonathan Freedman indirect impacts, erosion/sediment control, no federal nexus); LWS#3

A April 2000 email exchange between EPA staff members John Savich and Martha Choe provides an update on the status of a Clean Water Act Section 401 water quality permit for a Port of Seattle runway project. The main sticking point is stormwater storage management, with the Washington State Department of Ecology (DOE) targeting a mid-July decision after King County completed a review that identified serious shortcomings in the port's consultant work. Both the optimistic and realistic port timelines require DOE action on the 401 permit by July 21, meaning the port had already abandoned any hope of beginning construction that season.

Field Sampling Data Forms (AR 027906–027908) documenting environmental sampling at Miller Creek and Des Moines Creek survey sites including 144th St S and S 157th Pl, dated April 17, 2000. Water quality measurements recorded: temperature 53.2°F/11.0°C and 49.5°C (4/19), pH 7.5, dissolved oxygen 9.5/100, hardness 84 PPM CaCO3 (site IA) and 120 ppm (site IB).

Draft memorandum dated April 10, 2000 from Douglas Lindquist, Barry Chen P.E., and Mike Bailey P.E. of Hart Crowser, Inc. to Jim Thomson P.E. at HNTB regarding seismic basis of design for the Third Runway Project (J-4978-14) at Sea-Tac Airport for the Port of Seattle. Compares 475-year return period (0.36g peak acceleration, 10% probability of

Draft Subsurface Conditions Data Report prepared by Hart Crowser for Port Of Seattle and HNTB, project number J-4978-23, dated April 7, 2000. Covers geologic and subsurface soil conditions, hydrogeologic conditions, auger borings, Standard Penetration Test (SPT) procedures, test pit excavations, and monitoring well installation for the South MSE (Mechanically Stabilized Earth) Wall and Adjacent Embankment

A April 2000 memo from engineering firm Parametrix, Inc. evaluates roofing options to prevent zinc leaching from galvanized steel roofs on two Port of Seattle warehouses at Sea-Tac Airport. The study compared paint systems (ranging from $21,000–$240,000 for both buildings) against synthetic coverings such as spray-on elastomers and single-ply membranes ($60,000–$330,000), finding that painting is cheaper but requires more frequent maintenance while synthetic coverings last longer but cost more upfront. The memo recommends that any chosen material be evaluated to ensure it does not release metals or other pollutants into stormwater runoff.