TagPort Of Seattle(2611)

Respondent Washington State Department of Ecology’s objections filed before the Pollution Control Hearings Board (PCHB No. 01-133, PCHB No. 01-160) to issues proposed separately by Airport Communities Coalition (ACC). Ecology objects to ACC Issue No. 2 as outside the Board’s jurisdiction over the 401 Certification, and to ACC Issue No. 3 as duplicative, vague, and

Respondent State of Washington Department of Ecology’s revised preliminary witness and exhibit list filed before the Pollution Control Hearings Board in PCHB No. 01-133 and 01-160, Airport Communities Coalition v. Ecology and Port Of Seattle. Lists 11 Ecology witnesses including Ann Kenny, Erik Stockdale, Kevin Fitzpatrick, Dave Garland, and others from Ecology Northwest Regional Office

A November 6, 2001 handwritten fax note discusses problems with noise modeling errors and how results will be integrated into legal policies. It notes that AK advised POS to produce a more complete and accurate document, and argues it is not reasonable to hold up port mitigation based on a mistake, stating that if there is no impact, there is no impact. The note also references consultant agreement on impact calculations and requirements related to 401 regulations submitted as group per FAA standards.

Hart Crowser geotechnical summary report (project 4978-06) prepared for the Port of Seattle for presentation to the U.S. Army Corps of Engineers, November 2, 2001. Covers Third Runway embankment construction at Seattle-Tacoma International Airport: 17,000,000 cubic yards compacted earth fill, maximum fill thickness 165 feet, 2H:1V side slopes, three Mechanically Stabilized Earth (MSE) retaining walls

This November 2001 document from Parametrix, Inc. contains responses to U.S. Army Corps of Engineers questions regarding the Sea-Tac International Airport (STIA) Master Plan Update's natural resource mitigation project. It addresses technical questions about wetland mapping, watershed basin sizes, low-flow analysis, and cumulative wetland impacts across the Miller Creek, Walker Creek, and Des Moines Creek basins, showing projected wetland acreage reductions of approximately 3-4% with the project. The document also covers mitigation measures including wetland restoration sites and performance standards for invasive species control.

Hart Crowser, Inc. geotechnical summary report prepared for the Port of Seattle for presentation to the U.S. Army Corps of Engineers (Seattle District), dated November 2, 2001, project number 4978-06. Covers design of the Third Runway embankment and three mechanically stabilized earth (MSE) retaining walls (50–135 feet height) at Seattle-Tacoma International Airport (STIA). Addresses 17,000,000

Stipulation filed November 2, 2001 in PCHB No. 01-160 by Airport Communities Coalition (ACC) against Washington State Department of Ecology and Port Of Seattle, pursuant to Pre-Hearing Order dated October 30, 2001. Three stipulated legal issues: (1) whether Ecology violated applicable law on public and agency notice, hearing, comment, and modification regarding the original 401/404

Port of Seattle Natural Resource Mitigation Plan figure (AR017604, Exhibit 46, dated 12-20-01) showing Master Plan Update Improvement Projects at Seattle-Tacoma International Airport (STIA). Map depicts Third Runway construction area, Runway Safety Areas (RSAs), MSE retaining walls used to avoid and minimize wetland impacts, relocated section of Miller Creek, Miller Creek Detention Facility, Lora Lake,

Report prepared by Parametrix, Inc. for Port Of Seattle regarding the Miller Creek Riparian Corridor and Instream Enhancement Project and Wetland A17 Restoration, part of the Seattle-Tacoma International Airport Master Plan Update Improvements. Document AR 052286 covers wetland mitigation design, Army Corps of Engineers requirements, buffer averaging, hydrology, soils, vegetation, grading, landscape plan, performance standards,

A study at Seattle-Tacoma International Airport found that galvanized metal roofing on cargo buildings was the primary source of elevated zinc levels in the airport's stormwater runoff, which drains into salmon-bearing streams including Miller Creek and Des Moines Creek. Researchers used whole effluent toxicity (WET) testing and source-tracing methods to identify the problem, focusing on one outfall (SDN1) that consistently showed higher zinc concentrations and toxic effects on aquatic organisms. The findings prompted the Port of Seattle to investigate remediation options as part of its stormwater pollution prevention program under its NPDES permit.