Recreational Water Illnesses 

DNREC monitors waterbodies commonly used for swimming and other recreational activities by testing for Enterococcus bacteria, a harmless bacteria found in the intestines of warm-blooded animals (including humans). While Enterococcus doesn’t cause illnesses, it serves as an indicator for pathogens, harmful bacteria and viruses that are also found in the intestine.

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Blue-Green Algae in Delaware

Blue-green algae blooms may occur during warmer months in Delaware’s ponds, lakes and other slow-moving freshwater areas such as the upper parts of rivers. While there have been no reported illnesses in humans or animals in Delaware, blue-green algae blooms can have harmful effects, so it is important to be aware.

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