Lower Columbia Urban Streams Project, Clark County Clean Water Division

Lower Columbia Urban Streams monitoring is part of Washington State Department of Ecology’s Stormwater Action Monitoring (SAM) manages status and trends monitoring of urban streams in Clark and Cowlitz counties in the Lower Columbia River region to track how stormwater runoff from urban areas affects the health of small, wadable streams.

Stakeholders, including municipal stormwater permittees in Clark and Cowlitz counties, want to know how urban stream health changes over time in the Lower Columbia region since the area is developed and stormwater management actions are implemented more broadly.

This monitoring is designed to assess the current stream conditions and eventually answer the question: Are the quality and biota conditions of receiving waters in the region improving with broad implementation of required stormwater management practices?

Additional information and study design can be found in the link below or contact Chad Hoxeng with Clark County Clean Water Division at Chad.Hoxeng@clark.wa.gov.

https://ecology.wa.gov/Regulations-Permits/Reporting-requirements/Stormwater-monitoring/Stormwater-Action-Monitoring/SAM-status-and-trends/Lower-Columbia-urban-streams