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Portland Water Bureau

From forest to faucet, we deliver the best drinking water in the world.

GENERAL INFORMATION: 503-823-7404

1120 SW Fifth Ave, Suite 600, Portland, OR 97204

More Contact Info

Groundwater Protection Program

  • Cycle the Well Field

    Learn about groundwater protection as part of the annual bicycle ride around the well field.

  • Groundwater Protection Area

    Is your business or home in the protection area?

  • Technical assistance and training are available.

    Learn what groundwater protection laws mean for you.

  • Annual Aquifer Adventure attracts family-friendly pirates to the wellfield.

    Families learn about protecting groundwater while paddling and exploring.

  • Resources are available for businesses to learn about protecting groundwater.

    Click to view training and reporting forms.

Just like our rivers, our groundwater must be protected. The Cities of Portland, Gresham and Fairview have implemented a groundwater protection program to protect the Columbia South Shore Well Field – a drinking water source for over 800,000 Oregonians.

The goal of the groundwater protection program is to prevent chemical spills that could seep into the ground and pollute our drinking water. Businesses within the wellhead protection area boundary are subject to regulation if they use certain types and quantities of chemicals. Regulations focus on spill containment, prevention and best management practices. Pollution prevention is a cost-effective way to protect our groundwater resource and requires the cooperation of everyone living and working in the protection area.


Resources for Businesses

Employee Training and Reporting Forms

Frequently Asked Questions about Groundwater Protection

Who and what is regulated, chemical thresholds, protection area boundary, and more.

City Policy

Resolution No. 36156, effective July 2, 2003.

Technical Assistance

Assistance for businesses, residents and agriculture.

State certification

The city's request for certification from ODEQ. Includes Section 4, "Management of Potential Contaminant Sources"

The Columbia South Shore Wellfield Wellhead Protection Program Reference Manual

Includes links to reporting requirements and forms.

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.

PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.