The 2011 algae bloom season has ended. Historical details of health advisories issued in previous years can be found in the Advisory Archive.

Advisories are only issued for lakes, reservoirs and rivers for which we receive lab verification of a harmful algae bloom.

Only a fraction of Oregon's waterbodies are monitored, so When in doubt, stay out of waters that look suspicious -- foamy, scummy, thick like paint, pea-green, blue-green or brownish red.
 

 Join our Listserv

The HABS program has created a listserv to share information with partners, stakeholders and interested public. When an 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. Join the list.