TagACC(1524)

A memorandum from Ching-Pi Wang to Ann Kenny outlining three Toxics Cleanup Program (TCP) recommendations for 401 certification related to Sea-Tac Airport. The recommendations address monitoring contaminant transport via subsurface utility lines, maintaining and updating a contaminant database and maps, and collecting environmental data from construction and cleanup activities throughout the airport.

Memo dated June 22, 2001 from Ching-Pi Wang (Toxics Cleanup Program, TCP) to Ann Kenny regarding TCP recommendations for 401 certification related to the proposed Third Runway at Seattle-Tacoma International Airport (STIA). Three recommendations: (1) Port of Seattle to develop a plan by September 14, 2001 to monitor contaminant transport to soil and groundwater via

GeoSyntec Consultants, retained by the Airport Communities Coalition, responds to the Port of Seattle’s April 30, 2001 comments regarding their earlier technical review of the Third Runway Expansion Project at Seattle-Tacoma International Airport. The letter addresses concerns about the West Mechanically Stabilized Earth (MSE) Wall, including insufficient laboratory strength testing, potential underestimation of liquefiable materials,

Letter dated June 21, 2001 from Jeannie Summerhays (Washington Department of Ecology, Northwest Regional Office) and Elizabeth Leavitt (Port Of Seattle, Aviation Environmental Programs, Seattle-Tacoma International Airport) to Tom Mueller, Chief, Department of the Army Corps of Engineers, Seattle District, Regulatory Branch. Pursuant to 15 CFR § 930.60, Ecology and the Port Of Seattle mutually

A brief telephone conversation record dated June 21, 2001, noting that Port has agreed to pay for new scope and minor plan sheet changes, with instructions to provide this in writing to ‘Jim’. The memo also references a July 9th Low Flow meeting, potential involvement of Parametrix, setting up a meeting with Corps, and focusing

A letter from John A. Strand, Ph.D. of Columbia Biological Assessments to the U.S. Army Corps of Engineers and Washington State Department of Ecology, rebutting the Port of Seattle’s responses to comments on the proposed Master Plan Update Improvements at Seattle-Tacoma International Airport. The rebuttal focuses on the Miller Creek Relocation Project, arguing that the

A letter from John A. Strand, Ph.D. of Columbia Biological Assessments to the U.S. Army Corps of Engineers and Washington State Department of Ecology, rebutting the Port of Seattle’s responses to 401/404 permit comments regarding the Master Plan Update Improvements at Seattle-Tacoma International Airport. The rebuttal focuses on the Miller Creek Relocation Project, arguing that

Email chain between Washington State Department of Ecology staff discussing the development of acceptable fill criteria language for the 401 Water Quality Certification related to the Seattle-Tacoma International Airport Third Runway project. The correspondence clarifies that Ecology’s fill criteria should ‘stand alone’ from US Fish and Wildlife Service requirements in its Biological Opinion, while avoiding

Draft technical memorandum prepared by Associated Earth Sciences, Inc. (AESI, Project No. BV99122C) for Port Of Seattle, dated June 19, 2001, analyzing preferential ground water flow paths relative to the proposed Third Runway at Seattle-Tacoma International Airport (STIA). Responds to Washington Department of Ecology (Ecology) request regarding whether contaminated ground water below the Aviation Operations

FAA Northwest Mountain Region letter dated June 19, 2001, from FAA to Ms. Muffy Walker, U.S. Army Corps of Engineers Regulatory Branch Seattle District Office, following up on May 31, 2001 letter. Addresses three issues raised in April 30, 2001 Memorandum for the Record regarding the Port of Seattle third runway at Seattle-Tacoma International Airport