Oregon - Legionella Prevention and Costs of Legionnaires Outbreaks

Historical Headlines Related to Legionella

August 25, 2022

A senior apartment complex in North Portland had a new case of Legionnaires’ disease in late September of 2021 according to the Multnomah County Health Department. The case was the latest in a series of infections attributed to the waterborne illness since January. The Rosemont Court, an affordable housing complex for people aged 55 and older, outbreak resulted in 10 confirmed cases of Legionnaires’, including one death, and four presumptive cases. (Source)

June 17, 2022

Washington County public health officials say they have not yet pinpointed the source of a recent Legionnaires' disease outbreak in Beaverton, but they have found the legionella bacteria that causes pneumonia in an apartment complex hot tub. "Regular maintenance of hot tubs is important to prevent legionella and other infection-causing bacteria from growing, said Washington County health officer Dr. Christina Baumann. This includes making sure filters are changed, tubs are cleaned frequently and that there is an appropriate chlorine concentration and pH level in the tub." (Source)


Seniors who live at an apartment complex in North Portland where an outbreak of Legionnaires’ disease occurred last year will receive financial help to relocate. (Source)


In January 2021, Rosemont Court, an affordable housing complex for seniors in North Portland, saw its first residents fall sick with Legionnaires’ Disease, an illness spread by bacteria in tiny water droplets. The county confirmed six cases and suspected four others based on symptoms. By June, another three seniors had gotten sick.


Legionnaires’ disease continues to make headlines today. In 2021, an outbreak of Legionnaires’ disease sickened at least 13 residents of Rosemont Court, a Portland affordable housing project for seniors. This outbreak resulted in one death.

Reported Settlements and Jury Awards

Given the incidence of legionella in Oregon, and its associated harm, personal injury claims and litigation are also becoming more frequent. Reported settlements and jury awards are unavailable at this time.

State Cap on Jury Awards

Oregon does not have a cap on the award amounts allowable by law. In addition, public health notices and negative media attention can also lead to business interruption and reputation damage.

Groundwater Temperature Risk Level – Medium

Overall Liability and Risk for Oregon – High

No, ASHRAE 188 is not part of the state code

Legionella and Water Management Plan Assistance

Need help? For Legionella consulting and services, Water Management Plans, Legionella Control Systems, and Legionella testing please contact us at Nancrede Engineering at +1 888-56-water (+1 317-939-5932) or info@nancrede.com

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