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To improve security, on Feb. 11th the city will begin disabling TLS 1.0 on our websites. This change should not impact you unless you are using an old browser. More information


Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

More Contact Info

Ecoroofs featured on the Oregon Field Guide


Oregon Field Guide will include a story about the City of Portland's ecoroof program and research at Oregon State University. The episode will air on Thursday, Feb. 18 at 8:30pm. It will be available at the same time on the web at The show will also re-air on Sunday, Feb. 21 at 6:30pm.

Oregon Field Guide is a production of Oregon Public Broadcasting. Check here for channel listings in your area.


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Spam Prevention In the Pacific Northwest, what state is Portland in?