TagDuwamish River(20)

The Port of Seattle Commission considered a request to amend a contract with Just Health Action, a local community health nonprofit, to continue a pilot project engaging residents of the Duwamish Valley neighborhoods of South Park and Georgetown. The project, supported by a U.S. EPA Stakeholder Engagement and Capacity Building grant awarded in 2017, focuses on improving the Port's community outreach practices and addressing environmental health concerns in low-income and minority communities near Port operations. The total estimated project cost was $175,000, with the amended contract value reaching $224,999.

This 2018 document outlines community-identified opportunities and concerns from the Duwamish Valley EPA Environmental Justice Pilot Project, focused on improving collaboration between the Port of Seattle and nearby Duwamish Valley residents. It covers goals such as negotiating a Community Benefits Agreement, building community capacity, reducing environmental harms like air pollution and stormwater runoff, and improving green spaces and pedestrian safety. Note: this document addresses Duwamish Valley port and industrial area concerns and does not directly relate to Sea-Tac Airport noise policy.

This April 2018 Port of Seattle presentation outlines port and habitat recovery projects along the Lower Duwamish Waterway in Seattle, covering terminals 105, 107, 108, and 117, as well as Turning Basin #3 and the Lower Duwamish Waterway Superfund Site. The document highlights environmental restoration efforts, including shoreline and aquatic habitat improvements near Georgetown and South Park neighborhoods. Terminal 108 is featured as an example of habitat recovery work, showing before-and-after conditions of riparian restoration along the waterway.

The Puget Sound Regional Council (PSRC) 2015 Annual Report highlights regional transportation investments and infrastructure improvements in the greater Puget Sound area. A key focus is the opening of the new South Park Bridge on June 30, which restored a critical crossing over the Duwamish River, supported by more than $24 million in PSRC funding. The report calls for continued action on transportation to support the region's economic centers and approximately 80,000 jobs connected by the new infrastructure.

In April–May 1999, U.S. Army Corps of Engineers (NWS) staff exchanged emails debating whether to use a Port of Seattle Third Runway construction site as a disposal area for roughly 60,000 cubic yards of excavated material from the Duwamish River Turn Basin #3 habitat restoration project. Officials weighed whether this arrangement could compromise the Corps' impartiality in its pending permit decision for the Third Runway Project, ultimately concluding it would not, since disposal would occur on upland areas outside Corps jurisdiction and King County bore responsibility for finding a disposal site. The collaboration was seen as potentially saving the habitat restoration project up to $200,000 in disposal costs.

A 1999 internal U.S. Army Corps of Engineers email discusses plans to dispose of approximately 60,000 cubic yards of excavated material from a Duwamish River habitat restoration project (Turn Basin #3) at a Port of Seattle site designated for the proposed Third Runway. The email raises concerns about whether this collaboration with the Port could compromise the Corps' ability to issue an impartial permit decision for the Third Runway project, while noting the arrangement could save the restoration project around $200,000 in disposal costs.

A April 14, 1999 email from Mike O'Neil of Metro King County discusses plans to use a Port of Seattle runway at Sea-Tac Airport as a disposal site for dredged material from Turning Basin #3 on the Duwamish/Hamm Creek project. The Port's contact, John Rothnie, found the material geotechnically and environmentally acceptable, but noted that sending more than 6 trucks per hour could trigger a special permit requirement from the City of SeaTac. Hauling was estimated to begin in June 1999 and conclude in August, with contingency plans for dewatering especially wet material at an alternative commercial site.

This 1997 report by Science Applications International Corporation characterizes sediment quality in the Duwamish Turning Basin near Seattle, Washington, as part of the Hamm Creek Restoration Project. It presents results from chemical testing, biological bioassays, and sediment sampling to evaluate contaminant levels and compare them against sediment management standards. The study was prepared for the U.S. Army Corps of Engineers, Seattle District.

Draft amendments prepared by Tom Culhane and Jerry Liszak of Washington Department of Ecology Northwest Regional Office, Water Resources Program, replacing text of OFTR 95-01 for the Initial Watershed Assessment of Water Resources Inventory Area 9 (WRIA 9), Green-Duwamish Watershed. Document covers hydrogeology, ground water-surface water interaction, water demand, streamflow status, water rights and claims

A 1990 environmental assessment by Roy F. Weston Inc. evaluated soil and groundwater quality on an undeveloped Seattle property along the Duwamish Waterway, where Boeing was considering a 50-year lease with Seattle City Light. The study examined areas where dredged sediment from the Duwamish Waterway had been deposited in 1968 and 1985, testing for contaminants including PCBs, pentachlorophenols, PAHs, and metals. Prior sampling had found contaminant levels generally below state-regulated thresholds, and this baseline assessment was conducted to document existing conditions before any lease agreement was finalized.