Between Memorial Day and Labor Day, Public Health actively monitors water quality at the beaches listed below to make sure they are safe for swimming and recreation. If there is a problem with algae or bacteria in the water, warning signs will be posted at the lake.
Current beach information
Always take precautions such as not swallowing water, exposing cuts or sores to water, or entering water that appears scummy.
Water quality data
Water sampling results may be up to two weeks old and may not reflect current water quality conditions.
Toxic algae monitoring
Algae blooms (PDF) can pose significant health risks to humans and animals in lakes or other water bodies without currents. Algae blooms are most common in summer but can also occur at any time of year. Toxins produced by blue-green algae may be present during a visible bloom or may persist after a bloom has disappeared. Blooms can also be produced by other algae species that are not harmful.
|Photos from Jefferson County show examples of algae blooms
In the event of a bloom, Public Health staff will take samples of the lake water to determine if toxins are present. Monitoring will continue as needed and signs will be posted at the swim beach to discourage activity in the water.
Harmful bacteria can also be present in lakes and occasionally in rivers and streams. Public Health monitors fecal bacteria bi-monthly in swim beaches to ensure there are no public health risks.
Ingestion of water contaminated with fecal bacteria can cause fever, diarrhea, and vomiting. If you experience these symptoms after water contact, please contact your physician. To reduce your risk of exposure, Public Health recommends showering and hand washing with soap and warm water after contact with water at swim beaches.
Report a concern
To report a possible water quality concern, please contact us at (360) 397-8428 or firstname.lastname@example.org.