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.


What is the process for new projects?

We want your proposals for effectiveness studies and source identification studies or projects that support the implementation of the National Pollutant Discharge Elimination System (NPDES) Phase I and Western Washington Phase II Municipal Stormwater Permits. Successful, SWG-approved studies will be funded during this current permit term 2019-2024.

The Round 3 SAM Request for Proposals and Review Process  

Materials and information about the September 16, 2020 SAM Workshop

This is a competitive funding process to receive SAM funds. The program is open to public agencies that may legally enter into an inter-agency agreement with Ecology. Project proponents are strongly encouraged to form partnerships to address issues of common concern. There are five distinct stages to the SAM studies selection process.

SAM request for proposal schedule

Stage Description Due Date
 1 Letter of intent (LOI) from project proponent due to SAM Coordinator Feb. 28, 2020
 1 cont'd SAM Coordinator provides feedback to all project proponents and each proponent as to whether their project will move to Stage 2 March 28, 2020
 2 Full proposal from project proponent due to SAM Coordinator May 15, 2020
 3 SAM staff coordinate for scoring and technical reviews and send back to project proponents July 31, 2020
 4 SAM Round 3 Project Selection Workshop with presentations by proponents and stakeholder voting Sept. 16, 2020
 5 SWG approves project list for SAM funding Nov. 18, 2020

What are we learning?

SAM contracted for 16 effectiveness studies during the 2013-2018 permit cycle. SAM effectiveness projects can occur at site or regional scales and the results can be used across jurisdictions. 

Completed SAM effectiveness studies list