Harbor Island Superfund Site

The Harbor Island Superfund Site is just downstream of the Lower Duwamish Waterway Superfund Site.

Harbor Island is an industrial island in Seattle, Washington's Elliott Bay. Built in the early 1900s, the 420-acre island supports businesses that conduct commercial and industrial activities, including ocean and rail transport operations. Commercial and industrial operations on the site contaminated groundwater, sediment, and soil.

The potential sources of contaminants are both legacy pollutants and from potentially ongoing sources.


READ DRCC'S COMMENT LETTER ON THE EAST WATERWAY PROPOSED PLAN

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READ DRCC'S COMMENT LETTER ON THE EAST WATERWAY PROPOSED PLAN 〰️

The East Waterway

The East Waterway is part of the Harbor Island Superfund site - a separate Superfund site from the Lower Duwamish Waterway. The Spokane Street Bridge, a popular fishing bridge with immigrant communities, is located in the East Waterway site.

The East Waterway is part of the Duwamish River. They are biologically connected as one river, and influenced by the tides. What flows through one flows through the other.

 
 


Harbor Island Draft Community Involvement Plan

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Harbor Island Draft Community Involvement Plan -

A Community Involvement Plan (CIP) provides an overview of the outreach tools and techniques that the EPA will use throughout the cleanup of a Superfund site. This document will serve as a guide for meaningfully involving community members in the cleanup of the Harbor Island Superfund Site.

Read DRCC’s Comment Letter on the Draft CIP