Water Quality Program

The Water Quality Program coordinates the county-wide response to federal and state clean water regulations. The goal of the program is to protect the health of our streams, streamside areas and wetlands by avoiding impacts to streams from County operations and improving water quality.

NEW! Public Comment draft available 10/12/2020 - 10/26/2020: National Pollutant Discharge Elimination System - Municipal Separate Storm Sewer Permit - Annual Report for Fiscal year 2019 - 2020.

Download report: PUBLIC COMMENT DRAFT NPDES Annual Report (2.73 MB)


For questions or comments about the County's streams:

Email: waterquality@multco.us

Phone: 503.988.0195

Multnomah County Water Quality Program 1620 SE 190th Ave. Portland, OR 97233