Stormwater Action Monitoring — source identification

SAM's source control studies are focused on learning which actions by permittees and businesses in Western Washington are key to preventing illicit discharges. We are also gaining a better understanding of how to detect sources of pollution to stormwater. 
Source identification logo with a water outfall pipe

What are we learning?

Stormwater Action Monitoring (SAM) completed one source identification study during the 2013-2018 permit cycle and three more projects are under contract development. SAM source identification projects results can be used across jurisdictions. 

Municipal Illicit Discharge Detection and Elimination (IDDE) stormwater programs workshops

Municipal government staff are asked to attend one of these two workshops to provide feedback on their IDDE programs and field methods to benefit a SAM project to update the 2013 Illicit Connection and Illicit Discharge (IC/ID) Field Screening and Source Tracing Manual. King County and its consultants (Aspect Consulting and Herrera Environmental Consultants) are leading this SAM project and these workshops. Two opportunities to participate; save a date!
  • Feb. 25 2019, 1 to 4 p.m. at Snohomish County Administration Drewel Building 1st floor Skykomish Public Meeting room, 3000 Rockefeller Ave, Everett
  • March 4 2019, 1 to 4 p.m. at King County 8th floor conference center, 201 S. Jackson St., Seattle
 If you do IDDE work to trace sources of pollution, please join us to update the IC/ID manual.

Completed SAM source identification studies

Illict Discharge, Detection, and Elimination Compilation

SAM source identification projects

The following projects are now underway. The third project below is currently planned to start in late 2019.