Moses Lake and the surrounding watershed are susceptible to blue-green algae blooms. Blue-green algae is actually a bacterium called cyanobacteria that have similar qualities to forms of algae. Some blue-green algae produce toxins that are harmful to humans and animals. Blooms occur in the summer, when higher temperatures and elevated nutrient levels combine to create a thriving environment for blue-green algae. Whether or not blooms are toxic, they diminish the economic and recreational opportunities in Moses Lake and the surrounding region. 

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