Nevada County is home to an abundance of beautiful natural areas perfect for outdoor recreation, many of which feature seasonal streams, creeks, lakes, and rivers. As summer temperatures rise and rainfall decreases, water levels in these bodies naturally decline. These changes can alter the aquatic environment, increasing nutrient concentrations that support the growth of bacteria—including Escherichia coli (E. coli).

Lower water levels often lead to the accumulation of organic matter, creating ideal conditions for microbial activity. While this is a natural ecological process, it’s important to take simple precautions to protect your health while enjoying these waters.

Tips for Safe Recreation:

Always wash your hands after swimming, especially before eating or drinking.

Avoid swallowi

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