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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 of bill insert

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 there is still work to do to restore our river, the Big Pipe Project has dramatically reduced combined sewer overflows (CSOs).

Weekly testing all summer long

Each week during 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, 2,796kb)

What We Flush Matters

Download (PDF Document, 1,460kb)

Winter Rains Are Here

Download (PDF Document, 1,094kb)

Salmon in Our City

Download (PDF Document, 200kb)

Planning Some River Recreation? Check the Recreation Index

Download (PDF Document, 542kb)