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News Release

Cryptosporidium Monitoring Update: Detections From Routine Monitoring In The Bull Run. Customers Do Not Need To Take Any Additional Precautions At This Time. - 02/24/26

Since 2017, the Portland Water Bureau has detected low levels of Cryptosporidium from routine monitoring of source water. The Portland Water Bureau received results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism. In the 50 liters sampled each day from February 15 to February 18, 2026, one Cryptosporidium oocyst was detected in the sample collected on February 15 and one oocyst was detected in the sample collected on February 18. Cryptosporidium was not detected in the samples collected on February 16 or February 17. Prior to these detections, Cryptosporidium was last detected from the Bull Run drinking water source on February 11, 2026.

 

The Bull Run watershed is Portland’s primary source of drinking water. The Portland Water Bureau does not currently treat for Cryptosporidium, but is required to do so under drinking water regulations. Portland is working to install filtration by September 30, 2027 under a compliance schedule with the Oregon Health Authority. In the meantime, 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.

 

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 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 Domestic 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 Bull Run. To learn if your drinking water comes from Bull Run, please contact your local drinking water provider.

 

The public and the media are encouraged to view all sampling results posted to the City’s website at portland.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.

 

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

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Cryptosporidium Monitoring Update: Detections From Routine Monitoring In The Bull Run. Customers Do Not Need To Take Any Additional Precautions At This Time. - 02/24/26

Since 2017, the Portland Water Bureau has detected low levels of Cryptosporidium from routine monitoring of source water. The Portland Water Bureau received results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism. In the 50 liters sampled each day from February 15 to February 18, 2026, one Cryptosporidium oocyst was detected in the sample collected on February 15 and one oocyst was detected in the sample collected on February 18. Cryptosporidium was not detected in the samples collected on February 16 or February 17. Prior to these detections, Cryptosporidium was last detected from the Bull Run drinking water source on February 11, 2026.

 

The Bull Run watershed is Portland’s primary source of drinking water. The Portland Water Bureau does not currently treat for Cryptosporidium, but is required to do so under drinking water regulations. Portland is working to install filtration by September 30, 2027 under a compliance schedule with the Oregon Health Authority. In the meantime, 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.

 

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 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 Domestic 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 Bull Run. To learn if your drinking water comes from Bull Run, please contact your local drinking water provider.

 

The public and the media are encouraged to view all sampling results posted to the City’s website at portland.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.

 

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

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Land Use Process A Primary Driver Of Filtration Project Delays Leading To Increased Costs, Request For Deadline Extension (Photo) - 02/19/26

Delays impact City’s ability to meet September 2027 compliance deadline. Revised estimate reflects cost increases.

 

 

PORTLAND, Ore. – Officials with the City of Portland today shared an updated cost estimate and extended timeline for the Bull Run Filtration Project. The revised estimate of $2.56 billion reflects a $450 million increase associated with delays in the permitting process. The project will provide safe, high-quality drinking water for Portlanders and communities throughout the region.

 

While the Land Use Board of Appeals last week issued a decision affirming the project’s land use permits, the process caused significant delays to the project’s timeline. Learn more about the land use process and timeline here.

 

The City has requested from the Oregon Health Authority (OHA) an extension to the September 2027 deadline for serving filtered water. The 24-month extension would account for delays caused by the land use process and provide flexibility to address unforeseen site conditions and weather delays. The additional time will allow the City to deliver this critical project without compromising construction safety or the integrity of the facility. The City remains committed to the interim public health measures required by OHA to protect the regional water supply. Learn about Cryptosporidium and the City’s Bilateral Compliance Agreement with OHA here.

 

The Bull Run Filtration Project includes a new filtration facility and pipelines. When completed, it will be the largest filtration facility in Oregon. The project will increase the water system's resilience and comply with federal and state safe drinking water regulations.

“Portland is planning for the future. The seismic and weather-ready upgrades of the Filtration Project will provide reliable, consistent, safe and high-quality water to our customers, particularly following a major earthquake, landslide, wildfire or major storm,” said Mayor Keith Wilson. “We are doing everything we can to expedite the delivery of this crucial investment in Portland’s economic viability and the public health and safety of our people.” 
 

Click here to learn how the Camp Creek Fire threatened our regional water supply.

 

The City has implemented several fiscal strategies and is pursuing several others to keep the project cost as low as possible

  • A value-engineering team was mobilized to identify cost-effective construction methods without sacrificing safety, resiliency, or quality. Strategies include increasing skilled on-site staffing, incorporating specialized legal expertise, and engaging a Project Delivery Advisory Team to strengthen internal processes and tools.
  • Two Water Infrastructure Finance and Innovation Act (WIFIA) loans were secured to offset costs for customers, reducing borrowing costs and helping smooth rate impacts over time. Additional grant funding opportunities are being pursued to further protect ratepayers.
  • Exploring ways to better align capital planning efforts across bureaus to improve coordination, transparency, and long-term decision making.


“Our number one priority now is the Bull Run Filtration Project. The magnitude of investment requires careful attention to every detail of this megaproject from top management and our skilled technical team,” said Director of Public Utilities Ting Lu. “We have reached a critical moment in construction and we will finish strong. Our customers are counting on us to deliver this project that’s critical to protecting their health and guarding against the risk of wildfire and extreme weather.”

 

Financing options coming to Council during budget discussions

Staff will propose annual adjustments to water and sewer rates for the upcoming 2026–27 fiscal year as part of the budget process. Financing options to fund the filtration facility and pipeline projects while mitigating the impact on rates will be included in the budget development process. Rates will be finalized in May through the utility rate and budget process, which includes opportunities for community input.

 

“As we move into the annual budget process, our responsibility is to fund this project in a way that is responsible and sustainable,” said Deputy City Administrator for Public Works Priya Dhanapal. “We know these decisions have real impacts on customers, which is why we are prioritizing cost control, financing strategies, and transparency about the choices ahead. We are committed to minimizing impacts on monthly bills while delivering the safe, reliable water system our region depends on.”

 

Managing long-term rate impacts has been a critical part of project management.  The project team has used value engineering to find smarter, more cost-effective ways to complete construction without sacrificing safety or quality. State and federal funding opportunities have been secured with additional options being pursued to offset costs.  

 

 

Financial assistance program for ratepayers

We remain committed to providing value for our customers and limiting bill impacts, particularly during challenging economic times. Our robust financial assistance program ensures that customers can continue to access essential services regardless of financial circumstances.

 

The City offers bill discounts, crisis vouchers, and interest-free payment plans. Anyone who needs support should contact the customer service team at PWBCustomerService@portlandoregon.gov or 503-823-7770.  

 

Focused on a strong finish

Hundreds of construction crew members remain on-site.  Massive concrete work that will protect the City’s primary drinking water source from seismic activity is currently underway. Today, officials shared that crews have installed more than 7,000 feet of new pipelines. In the coming months, the new filtration facility will begin to take shape above ground.

 

See our digital assets including project construction, pilot ash project and wildfire videos here.

 

About the Portland Water Bureau 

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day.  

 

About the Public Works Service Area 

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders. 

 

Accommodation, translation and interpretation

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information. 

 

Attached Media Files: PDF version of release, Aerial view of filtration construction site, January 2026, Kids drinking water from Benson Bubbler, Filtration construction site,

Land Use Process A Primary Driver Of Filtration Project Delays Leading To Increased Costs, Request For Deadline Extension (Photo) - 02/19/26

Delays impact City’s ability to meet September 2027 compliance deadline. Revised estimate reflects cost increases.

 

 

PORTLAND, Ore. – Officials with the City of Portland today shared an updated cost estimate and extended timeline for the Bull Run Filtration Project. The revised estimate of $2.56 billion reflects a $450 million increase associated with delays in the permitting process. The project will provide safe, high-quality drinking water for Portlanders and communities throughout the region.

 

While the Land Use Board of Appeals last week issued a decision affirming the project’s land use permits, the process caused significant delays to the project’s timeline. Learn more about the land use process and timeline here.

 

The City has requested from the Oregon Health Authority (OHA) an extension to the September 2027 deadline for serving filtered water. The 24-month extension would account for delays caused by the land use process and provide flexibility to address unforeseen site conditions and weather delays. The additional time will allow the City to deliver this critical project without compromising construction safety or the integrity of the facility. The City remains committed to the interim public health measures required by OHA to protect the regional water supply. Learn about Cryptosporidium and the City’s Bilateral Compliance Agreement with OHA here.

 

The Bull Run Filtration Project includes a new filtration facility and pipelines. When completed, it will be the largest filtration facility in Oregon. The project will increase the water system's resilience and comply with federal and state safe drinking water regulations.

“Portland is planning for the future. The seismic and weather-ready upgrades of the Filtration Project will provide reliable, consistent, safe and high-quality water to our customers, particularly following a major earthquake, landslide, wildfire or major storm,” said Mayor Keith Wilson. “We are doing everything we can to expedite the delivery of this crucial investment in Portland’s economic viability and the public health and safety of our people.” 
 

Click here to learn how the Camp Creek Fire threatened our regional water supply.

 

The City has implemented several fiscal strategies and is pursuing several others to keep the project cost as low as possible

  • A value-engineering team was mobilized to identify cost-effective construction methods without sacrificing safety, resiliency, or quality. Strategies include increasing skilled on-site staffing, incorporating specialized legal expertise, and engaging a Project Delivery Advisory Team to strengthen internal processes and tools.
  • Two Water Infrastructure Finance and Innovation Act (WIFIA) loans were secured to offset costs for customers, reducing borrowing costs and helping smooth rate impacts over time. Additional grant funding opportunities are being pursued to further protect ratepayers.
  • Exploring ways to better align capital planning efforts across bureaus to improve coordination, transparency, and long-term decision making.


“Our number one priority now is the Bull Run Filtration Project. The magnitude of investment requires careful attention to every detail of this megaproject from top management and our skilled technical team,” said Director of Public Utilities Ting Lu. “We have reached a critical moment in construction and we will finish strong. Our customers are counting on us to deliver this project that’s critical to protecting their health and guarding against the risk of wildfire and extreme weather.”

 

Financing options coming to Council during budget discussions

Staff will propose annual adjustments to water and sewer rates for the upcoming 2026–27 fiscal year as part of the budget process. Financing options to fund the filtration facility and pipeline projects while mitigating the impact on rates will be included in the budget development process. Rates will be finalized in May through the utility rate and budget process, which includes opportunities for community input.

 

“As we move into the annual budget process, our responsibility is to fund this project in a way that is responsible and sustainable,” said Deputy City Administrator for Public Works Priya Dhanapal. “We know these decisions have real impacts on customers, which is why we are prioritizing cost control, financing strategies, and transparency about the choices ahead. We are committed to minimizing impacts on monthly bills while delivering the safe, reliable water system our region depends on.”

 

Managing long-term rate impacts has been a critical part of project management.  The project team has used value engineering to find smarter, more cost-effective ways to complete construction without sacrificing safety or quality. State and federal funding opportunities have been secured with additional options being pursued to offset costs.  

 

 

Financial assistance program for ratepayers

We remain committed to providing value for our customers and limiting bill impacts, particularly during challenging economic times. Our robust financial assistance program ensures that customers can continue to access essential services regardless of financial circumstances.

 

The City offers bill discounts, crisis vouchers, and interest-free payment plans. Anyone who needs support should contact the customer service team at PWBCustomerService@portlandoregon.gov or 503-823-7770.  

 

Focused on a strong finish

Hundreds of construction crew members remain on-site.  Massive concrete work that will protect the City’s primary drinking water source from seismic activity is currently underway. Today, officials shared that crews have installed more than 7,000 feet of new pipelines. In the coming months, the new filtration facility will begin to take shape above ground.

 

See our digital assets including project construction, pilot ash project and wildfire videos here.

 

About the Portland Water Bureau 

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day.  

 

About the Public Works Service Area 

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders. 

 

Accommodation, translation and interpretation

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information. 

 

Attached Media Files: PDF version of release, Aerial view of filtration construction site, January 2026, Kids drinking water from Benson Bubbler, Filtration construction site,

Invite: Major Timing And Cost Update On Bull Run Filtration Project (Photo) - 02/17/26

Media are invited to a press conference announcing project updates on the Bull Run filtration project from Deputy City Administrator for Public Works Priya Dhanapal and Director of Public Utilities Ting Lu. Hear about our progress toward building the biggest capital project in City of Portland history and learn about approaching milestones.

 

What:               City and project leaders, tradespeople, and public health representatives will share

the latest news on the project’s construction timeline and more.

When:              11 a.m., Thursday, February 19, 2026

Where:            Portland Water Bureau, Interstate Campus, 644 N. Tillamook St, Portland, OR

97227 Street parking only.

RSVP:              Confirm attendance by contacting Brandon Zero at

brandon.zero@portlandoregon.gov

 

Note: Street parking is scarce. Please allow extra time to find parking and be prepared to park two or more blocks away.

 

Read more about the Bull Run Filtration Project here.

 

See our digital assets including project construction, pilot ash project and wildfire videos here.

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.


Access and accommodations

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Attached Media Files: PDF version,

Invite: Major Timing And Cost Update On Bull Run Filtration Project (Photo) - 02/17/26

Media are invited to a press conference announcing project updates on the Bull Run filtration project from Deputy City Administrator for Public Works Priya Dhanapal and Director of Public Utilities Ting Lu. Hear about our progress toward building the biggest capital project in City of Portland history and learn about approaching milestones.

 

What:               City and project leaders, tradespeople, and public health representatives will share

the latest news on the project’s construction timeline and more.

When:              11 a.m., Thursday, February 19, 2026

Where:            Portland Water Bureau, Interstate Campus, 644 N. Tillamook St, Portland, OR

97227 Street parking only.

RSVP:              Confirm attendance by contacting Brandon Zero at

brandon.zero@portlandoregon.gov

 

Note: Street parking is scarce. Please allow extra time to find parking and be prepared to park two or more blocks away.

 

Read more about the Bull Run Filtration Project here.

 

See our digital assets including project construction, pilot ash project and wildfire videos here.

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.


Access and accommodations

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Attached Media Files: PDF version,

Cryptosporidium Monitoring Update: Detections From Routine Monitoring In The Bull Run. Customers Do Not Need To Take Any Additional Precautions At This Time. - 02/17/26

Since 2017, the Portland Water Bureau has detected low levels of Cryptosporidium from routine monitoring of source water. The Portland Water Bureau received results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism. In the 50 liters sampled each day from February 8 to February 11, 2026, two Cryptosporidium oocysts were detected in the sample collected on February 9, and one oocyst was detected in the sample collected on February 11. Cryptosporidium was not detected in the samples collected on February 8 or February 10. Prior to these detections, Cryptosporidium was last detected from the Bull Run drinking water source on February 2, 2026.

 

The Bull Run watershed is Portland’s primary source of drinking water. The Portland Water Bureau does not currently treat for Cryptosporidium, but is required to do so under drinking water regulations. Portland is working to install filtration by September 30, 2027 under a compliance schedule with the Oregon Health Authority. In the meantime, 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.

 

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 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 Domestic 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 Bull Run. To learn if your drinking water comes from Bull Run, please contact your local drinking water provider.

 

The public and the media are encouraged to view all sampling results posted to the City’s website at portland.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.

 

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

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Cryptosporidium Monitoring Update: Detections From Routine Monitoring In The Bull Run. Customers Do Not Need To Take Any Additional Precautions At This Time. - 02/17/26

Since 2017, the Portland Water Bureau has detected low levels of Cryptosporidium from routine monitoring of source water. The Portland Water Bureau received results from ongoing monitoring from the Bull Run Watershed intake for Cryptosporidium, a potentially disease-causing microorganism. In the 50 liters sampled each day from February 8 to February 11, 2026, two Cryptosporidium oocysts were detected in the sample collected on February 9, and one oocyst was detected in the sample collected on February 11. Cryptosporidium was not detected in the samples collected on February 8 or February 10. Prior to these detections, Cryptosporidium was last detected from the Bull Run drinking water source on February 2, 2026.

 

The Bull Run watershed is Portland’s primary source of drinking water. The Portland Water Bureau does not currently treat for Cryptosporidium, but is required to do so under drinking water regulations. Portland is working to install filtration by September 30, 2027 under a compliance schedule with the Oregon Health Authority. In the meantime, 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.

 

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 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 Domestic 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 Bull Run. To learn if your drinking water comes from Bull Run, please contact your local drinking water provider.

 

The public and the media are encouraged to view all sampling results posted to the City’s website at portland.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.

 

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

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Land Use Board Of Appeals Favors City Of Portland Bull Run Filtration Project - 02/13/26

The City of Portland is pleased to announce that the Land Use Board of Appeals (LUBA) issued a Final Opinion and Order affirming our land use permits to continue building the Bull Run Filtration Project. We are grateful for LUBA’s careful review and consideration.

 

The LUBA decision favored the City of Portland, confirming Multnomah County’s reapproval of the permits. This project is critical for public health and the regional economy, which depends on safe and reliable water.

 

We welcome the news of this decision and will continue to review its land use implications.

 

Next Thursday, we will hold a media event to share additional updates on the project. A media advisory will be issued early next week.

 

Read more about the Bull Run Filtration project here.

 

See our digital assets including project construction, pilot ash project and wildfire videos here.

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.


Access and accommodations

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas

Land Use Board Of Appeals Favors City Of Portland Bull Run Filtration Project - 02/13/26

The City of Portland is pleased to announce that the Land Use Board of Appeals (LUBA) issued a Final Opinion and Order affirming our land use permits to continue building the Bull Run Filtration Project. We are grateful for LUBA’s careful review and consideration.

 

The LUBA decision favored the City of Portland, confirming Multnomah County’s reapproval of the permits. This project is critical for public health and the regional economy, which depends on safe and reliable water.

 

We welcome the news of this decision and will continue to review its land use implications.

 

Next Thursday, we will hold a media event to share additional updates on the project. A media advisory will be issued early next week.

 

Read more about the Bull Run Filtration project here.

 

See our digital assets including project construction, pilot ash project and wildfire videos here.

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, 54 tanks and reservoirs, and 2,250 miles of pipe. With 600 employees working on everything from water treatment to customer service, the Water Bureau is committed to serving excellent water every minute of every day. 

About the Public Works Service Area

The Public Works Service Area keeps Portland running by managing the city’s water, sewer, stormwater, parks and transportation systems. It includes the Bureau of Environmental Services, the Portland Bureau of Transportation, Portland Parks & Recreation, and the Portland Water Bureau. Public Works ensures reliable infrastructure, invests in sustainability, and supports essential services that enhance daily life for Portlanders.


Access and accommodations

The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. To request these services, or to file a complaint of discrimination, contact 503-823-4000 (311), Relay Service & TTY: 711, or 503-823-8064. Visit Portland Water Bureau’s Disability and Language Access page for more information.

 

503-823-4000 Translation and Interpretation 

Traducción e Interpretación  |  Biên Dịch và Thông Dịch  |  अनुवादन तथा व्याख्या

口笔译服务 |  Устный и письменный перевод  |  Turjumaad iyo Fasiraad

Письмовий і усний переклад  |  Traducere și interpretariat  |  Chiaku me Awewen Kapas