Skip to Main Content View Text-Only

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info

Underground Injection Control (UIC) Program

The overview of stormwater drainage within the City of Portland.

Pink - combined sewer and stormwater drainage areas, piped to CBWWTP

Green - separated, MS4 drainage area

Orange - separated, UIC drainage area



Portland UIC Stormwater Monitoring

Washington Hydrogeology Symposium