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The City of Portland, Oregon

Portland Water Bureau

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

Customer Service: 503-823-7770


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Nov. 8 Community Water Forum: Learn About the Bull Run Water Treatment Projects

Learn about the Bull Run water treatment projects, ask questions, and provide feedback to Water Bureau staff.

Water Bureau employee answer questions at public eventLearn about the Bull Run water treatment projects, ask questions, and provide feedback to Water Bureau staff.

You’re invited to attend a Community Water Forum on the Bull Run Water Treatment Projects from 6 to 7:30 p.m. Thursday, Nov. 8 at the Immigrant and Refugee Community Organization (IRCO), 10301 N.E. Glisan St.

The Portland Water Bureau is continuing to improve Bull Run water through filtration and lead reduction efforts. This means that in the next nine years, Portland will filter water to remove the potential for the microorganism Cryptosporidium and improve corrosion control treatment to reduce the risk of lead in water from home plumbing.

At the forum, attendees will have the opportunity to...

  • Learn about the new water filtration project
  • Get an update on lead reduction efforts
  • Find out how to apply for financial assistance
  • Ask questions and provide feedback

Free lead testing kits, water bottles and a TriMet pass will also be provided at the event (as supplies last). Food and refreshments provided by Tamale Boy.

Date: Thursday, Nov. 8
Time: 6 p.m. to 7:30 p.m.
Location: Immigrant and Refugee Community Organization (IRCO), 10301 N.E. Glisan St.

Questions? Contact Tony Andersen at or 503-823-8653.

Portland Water Bureau Returns to 100 Percent Bull Run Water

The Portland Water Bureau returned to 100 percent Bull Run water today, Oct. 17. On June 19, the Portland Water Bureau began blending a portion of water from wells at the Columbia South Shore Well Field to augment supply from the Bull Run. Between an anticipated return of fall weather and lower seasonal demand, Bull Run reservoirs have adequate supply to meet Portland’s drinking water needs. Both the Bull Run and Columbia South Shore Well Field are high quality water sources that meet or surpass all federal and state drinking water regulations.

Through careful planning and investment, Portland has developed two excellent water sources that ensured the City could meet all of its customers’ needs through this warm and dry summer. Together, the Bull Run watershed and the Columbia South Shore Well Field constitute a resilient drinking water supply.

It will take one to eight days, depending on location, for 100 percent Bull Run water to move through the distribution system and reach customers.

While public notification is not required, the Water Bureau informs the media and sensitive users when it activates and discontinues use of groundwater.

More Information

To learn more about the Columbia South Shore Well Field, visit Customers with water quality questions are encouraged to contact the Water Line at 503‐823‐7525.

Oct. 16, 2018: Cryptosporidium Monitoring Update

The Portland Water Bureau received results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism. One Cryptosporidium oocyst was detected in a 10-liter sample collected on Thursday, Oct. 11, 2018. Prior to this detection, Cryptosporidium was last detected from the Bull Run Watershed intake on April 10, 2018, when one oocyst was detected in a 50-liter sample.

The bureau is currently serving a blend of Bull Run and groundwater from the Columbia South Shore Well Field as its source of drinking water. The Portland Water Bureau does not currently treat the Bull Run for Cryptosporidium, but is required to do so under the drinking water regulations. Portland is working to install filtration by 2027 under a compliance schedule with the Oregon Health Authority. In the meantime, the Portland Water Bureau is implementing interim measures such as watershed protection and additional monitoring to protect public health. Consultation with public health officials has concluded that at this time, customers do not need to take any additional precautions.

About Cryptosporidium

Exposure to Cryptosporidium can cause cryptosporidiosis, a serious illness. Symptoms can include diarrhea, vomiting, fever and stomach pain. People with healthy immune systems recover without medical treatment. According to the Centers for Disease Control and Prevention (CDC), people with severely weakened immune systems are at risk for more serious disease. Symptoms may be more severe and could lead to serious or life-threatening illness. Examples of people with weakened immune systems include those with AIDS; those with inherited diseases that affect the immune system; and cancer and transplant patients who are taking certain immunosuppressive drugs.

The Environmental Protection Agency has estimated that a small percentage of the population could experience gastro-intestinal illness from Cryptosporidium and advises that customers who are immunocompromised and receive their drinking water from the Bull Run Watershed consult with their healthcare professional about the safety of drinking the tap water. The Portland Water Bureau and Burlington, City of Gresham, City of Sandy, City of Tualatin, Green Valley, GNR, Hideaway Hills, Lake Grove, Lorna Portland Water, Lusted, Palatine Hill, Pleasant Home, Raleigh, Rockwood, Skyview Acres, Tualatin Valley, Two Rivers, Valley View and West Slope Water Districts receive all or part of their drinking water supply from the Bull Run. To learn if your drinking water comes from Bull Run, please contact your local drinking water provider.

Additional Information

The public and the media are encouraged to view all sampling results posted to the City’s website at The bureau will notify the media and public immediately should further test results indicate a risk to public health and precautions are necessary.

Customers with questions regarding water quality can call the Water Line at 503-823-7525.

Evening/Night Work Scheduled for SE Foster Road: Oct. 19 at 6pm to Oct. 21

Crews will be conducting hydrant replacement work along SE Foster Rd between SE 58th and 70th Ave from Oct 19 at 6pm to Oct 21 at 8pm.

This work will be conducted during evening hours to minimize impacts to businesses and traffic along SE Foster Rd. Noise will be caused by saw cutting, excavation, dump trucks, and backhoes. The Water Bureau has received a Noise Variance Permit to allow this work to be conducted at these times. If you have questions about the permitting process, or if you have comments you wish to share with the City, please contact the City's Noise Control Office at 503-823-7350.

When City bureaus work together, neighbors and local businesses reap the rewards.

The Water Bureau is coordinating with PBOT’s Foster Streetscape Project to perform the fire hydrant and gate valve upgrades. These upgrades will renew existing hydrants and gate valves that have exceeded their expected service lives. In addition to upgrading existing fire hydrants, new gate valves will help better control the water system and minimize service disruptions in the event of an emergency main break.

Thank you for your patience as we work to improve your water system!

Practice Earthquake Safety with The Great Oregon ShakeOut on Oct. 18

Join the Portland Water Bureau along with thousands of other Portlanders in The Great Oregon ShakeOut this Thursday, Oct. 18a 10:18 a.m.!

The Great Oregon ShakeOut is an earthquake preparedness drill that provides an opportunity to practice what to do during an earthquake. It is important to know what to do to protect yourself from debris and other hazards during an earthquake.

During the drill (or when shaking starts during a real quake): 

  • DROP down onto your hands and knees.
  • COVER your head and neck, and if possible your entire body, under a sturdy table or desk. If there is no shelter nearby, then — and only then — drop and cover near an interior wall or next to low-lying furniture that won’t fall on you.
  • HOLD ON to your shelter or your head and neck until the shaking stops. Be prepared to move with your shelter if the shaking shifts it around. Wherever you are, protect yourself. You may be in a situation where you cannot find shelter beneath furniture.
  • After a real earthquake, once the shaking stops, EVACUATE the building and gather at your designated meeting point. Be prepared for aftershocks. 

Experts say it is just a matter of time before the Pacific Northwest could experience a significant earthquake. Taking time to prepare and know what to do is important. 

Are You Prepared for an Earthquake?

One very important way to prepare for emergencies is to keep enough clean water on hand in case our water system is damaged. We can endure lack of food for much longer than we can go without water. Clean, safe, high-quality water is our legacy in the Northwest.

But what happens if water lines are damaged and you can’t just turn on the tap?

How much water do you need to survive a local disaster or emergency?

How can you ensure a supply of safe water for your family?

Discover how to start building an emergency water supply to keep you and your family in water in the event of an emergency.