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.


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

NEW! Public comment on the 2018 NPDES Stormwater Permit Annual Report will be accepted through October 31, 2018, at 5:00pm. Please download the DRAFT NPDES Annual Report here. Please submit comment to the contact information above.