Stormwater Action Monitoring - Effectiveness studies

SAM's effectiveness studies measure the stormwater management actions in Western Washington and communicate useful findings on what works and what doesn't work. The Stormwater Work Group (SWG) organizes permittees and stakeholders to select the SAM study topics.

SAM Effectiveness Studies icon

What are we learning?

SAM effectiveness projects can occur at site or regional scales and the results can be used across jurisdictions. 

Effectiveness studies in progress

The Stormwater Work Group has selected the following projects. Projects usually take 2-4 years to complete and we link to the project deliverables as they are completed. Once projects conclude, we summarize findings and link to final reports in the section below.

Completed effectiveness studies