Harmful Algal Blooms

Information for Public Water Systems

harmful algal bloom on a lakeCyanobacteria (also known as blue-green algae) are microscopic organisms found naturally in surface water that can sometimes multiply to form harmful algal blooms (HABs).  HABs can potentially produce toxins capable of causing illness or irritation -- sometimes even death -- in pets, livestock, and humans.  In addition to producing toxins, cyanobacteria can pose other treatment challenges for public water systems including taste and odor and shortened filter run times. The information below is provided to assist public water system operators with preventing, identifying and responding to HABs.

 

Prevention and Treatment

Learn more about types of treatment to address HABs: