Thurston County Public Health and Social Services is reporting a toxic algae bloom at Lake Lawrence. Lab results taken on 8/14/2024 detected Microcystins toxin levels at 10 ug/L, which is ABOVE the state recreation guideline of 8ug/L. Anatoxins were not detected. 

Microcystins are a liver toxin and possible human carcinogen. Microcystins can also cause illness in livestock and pets that drink affected water. Staff will continue to collect weekly samples until they receive two consecutive weeks of samples with microcystin levels below state recreational guidelines. Even if the lake is visibly clear of algae, toxins may still be present.  Warning signs will be posted at the Lake Lawrence boat launch and community park, where the samples were taken.  

When an algae bloom is present, health officials recommend taking extra precautions to avoid the health risks posed by potential toxins.

• Do not drink the lake water.
• Avoid contact with water containing algae.
• Avoid swimming, wading, windsurfing, and water-skiing in waterbodies where algae blooms are present.
• Keep pets and livestock away from where algae blooms are present.
• Do not eat fish that come from the lake during an algae bloom.
• Avoid areas of scum when boating. 

For more information about toxic algae blooms and health risks, visit: www.thurstoncountywa.gov/outdoor-water-recreation

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