Butter clams on the beach

Stormwater Monitoring of Water Quality

Testing for pollutants

Interesting Fact

4Outfall locations in and near Oak Harbor where stormwater samples are collected See Our Impact

During the rainy season (winter), volunteers collect samples at public outfalls, particularly after major rain events. Samples are then tested for six attributes of pollution that comprise stormwater runoff. SWS is excited to team up with Friends of the Salish Sea to assist with their expansion of stormwater surveys data collection.

If you would like to help, please contact SWS Whidbey Island Coordinator.

Stormwater Monitoring Project Fact Sheet 2025

Parameters – What They Indicate