We developed a Source Control Action Plan (SCAP) for each source control area. Each SCAP identifies potential contaminant sources and transport pathways that may affect sediments. The plan evaluates the significance of these sources and their potential for recontamination of sediments, and identifies actions needed to control them. It also describes sampling and monitoring that will be conducted to identify any additional sources.
The Source Control Action Plan Handbook explains how the SCAPs were developed and the reason for some of the differences between earlier and later SCAPs and associated reports. In addition, it identifies some of the challenges that were encountered during this process.
Scroll down below the map to view the SCAP and related documents for each area, and to see which cleanup sites are located in each area. The Combined Sewer Overflow (CSO) Basins are being addressed under King County’s and City of Seattle’s CSO Control Plans.