Frequently Asked Questions


In early 2010, Terminal 117 (T-117) project personnel, with oversight by the U.S. Environmental Protection Agency (EPA), began visiting with local groups and citizens regarding the PCB cleanup of T-117 and the adjacent streets and yards. The Port of Seattle is responsible for cleanup of sediments and upland areas of the Port’s property at T-117, while the City of Seattle is responsible for cleanup of adjacent streets and residential yards. The Port completed their portion of the cleanup in 2014 and the City completed their work in two phases: Residential Yards in 2013 and Streets & Stormwater in 2016.

The entire cleanup process at T-117 is directed and overseen by the U.S. Environmental Protection Agency (EPA). An Engineering Evaluation and Cost Analysis (EE/CA), which describes the contaminants at the site, the location and concentrations of the contaminants, and options for how to clean up the site, was released for public review in spring 2010. In September 2010, the EPA issued a removal Action Memorandum, detailing the selected cleanup plan.

This collection of frequently asked questions (FAQs) captures the comments and questions we’ve heard at community briefings and public forums. The log continues to grow as community members provide input. Please note that these pages provide paraphrased comments and questions we heard from the community. If you do not see your questions or concerns captured here, please submit a comment by clicking here or send an email to To download a comment form in Spanish (Español) or Vietnamese (Việt), click here.

Questions in the log are organized into the following categories: