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Advisory and Sampling Guidance

This information is intended to serve as a resource to lake managers and others who deal with algae blooms


children playing in lakeAdvisory Guidelines for Harmful Cyanobacterial Blooms in Recreational Waters (pdf)

Outlines the Oregon Health Authority criteria for issuing and lifting public health advisories due to cyanobacteria blooms.



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

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



Available Labs for Cyanobacteria Analysis

Contains names of laboratories that can identify algae species and cell density counts, also toxin analysis.



Fast Facts: Blue-green Algae Q&A for Water System Operators

Technical overview intended for use by drinking water operators, provides a general overview of blue-green algae and what to do if algae is detected in source water.



Visit OHA Drinking Water Services for additional algae resources for drinking water.

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