In 2014, the EPA published the Record of Decision (ROD), the final cleanup plan for the remaining contaminated sediment at the Lower Duwamish Waterway Superfund site.
In 2015, EPA issued the Errata Correction Memo with updated information.
Lower Duwamish Waterway Group website (technical documents available here)
Duwamish River Cleanup Coalition/Technical Advisory Group website (Community Advisory Group for the cleanup site)
Administrative Order on Consent Amendment #3
Administrative Order on Consent Amendment #4