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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

GENERAL INFORMATION: 503-823-7404

More Contact Info


Dec . 4, 2017: Cryptosporidium Monitoring Update

Dec. 4, 2017 Crypto Monitoring UpdateThe Portland Water Bureau received additional results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism. Between Sunday, Nov. 26 and Wednesday, Nov. 29, one Cryptosporidium oocyst was detected from a 50-liter sample collected on Tuesday, Nov. 28. No Cryptosporidium was detected from three other samples collected during this time. Cryptosporidium was last detected from the Bull Run Watershed intake on Nov. 22, 2017.

The bureau continues to use the Bull Run as its primary source of drinking water. The Portland Water Bureau does not currently treat for Cryptosporidium, but is required to do so and is working to install treatment. The Portland Water Bureau continues to consult with OHA and local health officials regarding these detections. At this time, customers are not being asked 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.

EPA 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.

Public health surveillance during and after a similar series of low-level detections from January through March of this year did not see an increase in Cryptosporidium-related illness.

Water Sampling Results

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

Water Quality Questions?

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

Fire Line Repair Closes Southwest Alder Street between Fourth and Fifth Avenues

Portland Water Bureau crews are responding to a fire line break on Southwest Alder Street between Fourth and Fifth avenues.  

Southwest Alder will remain closed between Fourth and Fifth avenues until repairs are completed later today.

The traveling public is reminded to stay alert and use caution as traffic may suddenly slow or stop. To avoid traffic delays, motorists are encouraged to use alternate routes around the work site. 

The Portland Water Bureau’s Maintenance & Construction crews are ready to respond to emergencies, including water main breaks, 24-hours a day, seven days a week. On average, crews respond to 200 main breaks a year. 

Fire Line Repair Continues into Thursday with Closure of Southwest Alder Street between Fourth and Fifth Avenues

Portland Water Bureau crews continue repairing a fire line break on Southwest Alder Street between Fourth and Fifth avenues.

Southwest Alder will reopen between Fourth and Fifth avenues for the Wednesday evening commute and close again at 7 a.m. Thursday, Dec. 7 until repairs are completed later that day.

The traveling public is reminded to stay alert and use caution as traffic may suddenly slow or stop. To avoid traffic delays, motorists are encouraged to use alternate routes around the work site.

The Portland Water Bureau's Maintenance & Construction crews are ready to respond to emergencies, including water main breaks, 24-hours a day, seven days a week. On average, crews respond to 200 main breaks a year.

Main Break Season 101: What to Expect, Who to Call, and How to Prepare

Fruitcake and main breaks: the uninvited guests of the holiday season.

Game of Thrones Meme: Main break season is coming...Main break season is officially here.

It’s that time of year when cold temperatures mix with aging water pipes. Cold air, and cold water, can cause old pipes to become brittle and sometimes crack and burst, sending water into streets and keeping our Maintenance and Construction crews busy fixing broken mains.

Anatomy of a Main Break

Portland has 2,200 miles of water pipe; many of them are around a century old. These pipes run under our streets and sidewalks, channeling water from city reservoirs to homes and taps across the metro area.

Our crews actively replace and repair old water pipes throughout the year, but, when cold snaps and freezing temps come to visit, things can go awry.

A main break occurs when a crack or a hole develops in one of these water main pipes. Sometimes water main breaks can be a slow leak, other times they can cause pools of water to form on city streets.

Temperatures are just one factor in causing a main break. The age of a pipe, soil conditions, pipe corrosion, and ground movement can also cause a main to weaken over time and break.

Prepare Your Home

Burst water pipes don’t just occur under city streets. Outdoor spigots, faucets, and irrigation systems are also susceptible to breaking and busting in cold weather.

Protect your home and avoid costly repairs by taking a few steps to winter-proof your home plumbing.

Be A Main Break Lookout

See water running from streets or sidewalks?

Spot a waterspout in the middle of the road?

Be a main break lookout! Help us find leaks before they cause significant damage or inconvenience for neighbors.

Report the leak to the Water Bureau’s 24-hour Emergency Line at 503-823-4874.

Dec. 11, 2017: Cryptosporidium Monitoring Update

Cryptosporidium monitoring updateThe Portland Water Bureau received additional results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism.

Between Sunday, Dec. 3 and Wednesday, Dec. 6, three Cryptosporidium oocysts were detected from three separate 50-liter samples collected on Sunday, Dec. 3, Monday, Dec. 4, and Tuesday, Dec. 5. Cryptosporidium was not detected in the sample collected on Wednesday, Dec. 6. Prior to these detections, Cryptosporidium was last detected from the Bull Run Watershed intake on Nov. 28, 2017.

The bureau continues to use the Bull Run as its primary source of drinking water. The Portland Water Bureau does not currently treat for Cryptosporidium, but is required to do so and is working to install treatment. The Portland Water Bureau continues to consult with OHA and local health officials regarding these detections. At this time, customers are not being asked 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.

EPA 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.

Public health surveillance during and after a similar series of low-level detections from January through March of this year did not see an increase in Cryptosporidium-related illness.

Water Sampling Results

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

Water Quality Questions?

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