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The City of Portland, Oregon

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

Bill Inserts for Customers

Image: People recreating on the Willamette River

Big Pipe, Big Difference

The Willamette River in Portland is cleaner than it’s been in decades, thanks in large part to your investment. While we continue to restore the river, we can all celebrate the Big Pipe Project. Enjoy our Willamette River. More information at

Weekly testing all summer long

Each week during the summer months, Environmental Services tests for the presence of E. coli as well as water temperature at five popular public recreation spots along the Willamette. Samples are collected on Wednesdays and test results are posted online by Friday morning – in time for weekend activities. Get the latest results at

Environmental Services inserts these informational flyers in quarterly water-sewer-stormwater utility bills.

Big Pipe, Big Difference

Download (PDF Document, 1,483kb)

How to Keep Your Pipes Fat Free

Download (PDF Document, 803kb)

Do you live or work in a floodplain?

Download (PDF Document, 659kb)

Under Construction for Clean Rivers—Be Patient, Be Safe

Download (PDF Document, 7,110kb)

What We Flush Matters

Download (PDF Document, 1,460kb)