TagPort Of Seattle(2405)

Internal forwarded email chain dated January 28, 2000, from Erik Stockdale to Tom Luster (copying Sarah Suggs original), forwarding a SEPA register entry (Ecology File# 200000524, LA File# 00-02) for an Addendum EIS issued by the Port of Seattle as lead agency. The addendum EIS covers Third Runway Wetland Fill and Temporary Construction at Sea-Tac

SEPA Addendum dated January 24, 2000, Port Of Seattle, POS SEPA No. 00-02, addressing modifications to the Master Plan Update Development Actions for the Third Parallel Runway at Seattle-Tacoma International Airport. Addendum covers: (1) increased wetland acreage affected by the project, revised from 12.23 acres to 18.33 acres, with 15.41 acres affected by the runway

A December 1999 letter from Port of Seattle Senior Environmental Program Manager Paul W. Agid to the Washington Department of Ecology transmits a 'potential sites' table and map identifying locations at Seattle-Tacoma International Airport where historical operations may have caused soil or groundwater contamination. The document, compiled in compliance with an Agreed Order under Washington's Model Toxics Control Act (MTCA), lists twelve potential sites including former gas stations, fuel tanks, hydrant lines, and maintenance areas. The sites were identified based on past operational activities that had since been discontinued or modified prior to current environmental regulations.

A December 1999 environmental assessment prepared for Citizens Against Seatac Expansion (CASE) concludes that the Port of Seattle failed to provide sufficient scientific evidence to assure compliance with Clean Water Act water quality standards for its Seattle-Tacoma International Airport expansion project. The report found that stormwater runoff from the airport was causing ongoing violations of toxic substances criteria — particularly for copper and zinc — in nearby Miller and Des Moines Creeks, with pollutant levels sometimes exceeding EPA limits by more than tenfold. The author argues that Ecology therefore lacked a scientifically defensible basis to issue a Section 401 water quality certification for the proposed wetland-filling and stormwater management improvements.

In November 1999, Highline Water District and the Port of Seattle reached a settlement agreement resolving competing claims over two water rights near Seattle-Tacoma International Airport. Under the deal, the Port retained rights to Well #1 for uses including Des Moines Creek flow augmentation tied to the proposed third runway project, while the District secured rights to a replacement for Well #2 to continue providing drinking water to its 58,000 customers. The District emphasized that the agreement was strictly about protecting its water rights and service area, and that it took no official position on the controversial third runway expansion.

A November 30, 1999 letter from Port of Seattle's Aviation Project Management Group to Seattle Public Utilities reports the fourth and final quarterly stormwater monitoring results for the Sea-Tac Airport North Employees' Parking Lot (NEPL). Testing of water samples collected throughout 1999 found pollutant levels—including metals, hydrocarbons, and suspended solids—well below Washington State residential water supply standards. Based on these results, the Port proposed ending the monitoring program and invited the City of Seattle to confer on whether further monitoring was warranted under their Interlocal Agreement.

In November 1999, the Washington State Department of Transportation (WSDOT) wrote to the Port of Seattle offering approximately 120,000 cubic yards of excess fill material from the First Avenue South Bridge construction site for use in the Sea-Tac Airport third runway project. While most of the material was found to be environmentally sound, the top few feet of soil showed slightly elevated levels of petroleum hydrocarbons, which WSDOT offered to retest using a different procedure before any transfer. The Port was asked to confirm environmental acceptability and provide a haul route before an agreement could be finalized.

Published opinion filed November 15, 1999, Washington Court of Appeals Division One, No. 43100-5-I. Cities of Des Moines, Burien, Federal Way, Normandy Park, Tukwila, Highline School District No. 401, and Airport Communities Coalition (appellants) v. Puget Sound Regional Council, Port Of Seattle, and Commissioners of the Port Of Seattle (respondents). Consolidated with related cases including

Parametrix, Inc. prepared this Supplemental Airport Site Wetland and Stream Analysis for Port Of Seattle, dated November 12, 1999 (AR 043120). The report analyzes wetland and stream conditions at three supplemental airport candidate sites — Arlington, Lake Sawyer, and Frederickson — comparing 1994 MSA study findings with 1998 field-verified wetland boundary data. Includes tables comparing

Hart Crowser subsurface conditions data report (J-4978-16) prepared for HNTB and Port Of Seattle, dated November 12, 1999, regarding Phase 3 Fill for the Third Runway embankment at Seattle-Tacoma International Airport. Report covers generalized geologic and subsurface soil conditions, hydrogeologic conditions, field explorations (auger borings HC99-B61, HC99-B63, HC99-B65, HC99-B71, HC99-B73), test pits HC99-TP26 through HC99-TP44,