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Program Guidelines


children playing in lakePublic Health Advisory Guidelines for Harmful Algae Blooms in Freshwater Bodies (pdf)

Outlines the Oregon Public Health Harmful Algae Bloom Surveillance program criteria for issuing and lifting public health advisories due to cyanobacteria blooms.



Man taking water samples from lakeSampling Guidelines for Harmful Algae Blooms in Recreational Waters (pdf) 

Provides guidance for lake managers who intend to monitor water bodies when potentially harmful algae blooms are detected.









    Join Our Listserv

The HABS program has created a listserv to share information with partners, stakeholders and interested public. When a health advisory is issued, an email is sent to subscribers that includes the news release and water sample results (algae species and cell counts). Emails are also sent when an advisory is lifted. Other timely information may be periodically shared as well. To join the list, email us at