Cleveland Water Safe from Algae Blooms

Cleveland Water would like to inform all customers and recipients that our water supply remains safe to drink and continues to meet high standards. The Central Basin of Lake Erie that supplies our system with water currently does not have the degree of algal growth that the Western Basin does. Our water supply remains safe and continues to be treated and distributed as normal.

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Baldwin Water Treatment Plant

Below is a list of information that may assist you with questions you may have:

  • Cleveland Water remains safe to drink and continues to meet high quality standards – this has not changed. 
  • No toxins have been detected in Cleveland Water to date.
  • The Central Basin of Lake Erie supplies the Cleveland Water system and is generally deeper, which keeps the water cooler than the Western Basin that supplies Toledo water. Warmer water and stormwater runoff from the rich agriculture in the region may contribute to the growth of algal blooms.
  • We do not anticipate the Central Basin of Lake Erie will experience the same level of algal growth.  High wind events break up algal blooms.  Blooms also break up when the algae has consumed the available nutrients. For more information regarding Harmful Algal Blooms, please see the following link from our partners: Harmful Algal Blooms In Ohio Waters.pdf
  • To ensure health and safety, our four water treatment plants (Crown, Morgan, Nottingham, Baldwin) are all closely monitoring incoming lake water, NOAA satellite images, and algal bloom forecasts for any indication of problems or water quality issues.
  • We are receiving near real-time data about algal growth from NOAA’s monitor located several miles out in Lake Erie. We also monitor the data and images from the US EPA, NOAA and other sources.
  • Turbidity (the clarity of the water) and chlorine are monitored continuously to ensure the integrity of the water treatment process.
  • We participate in US EPA testing which includes monitoring for algal toxins.
  • Algal toxins can be removed from the water by adding activated carbon to the water – Cleveland Water utilizes this treatment.
  • Algal concentrations in the Central Basin of Lake Erie are actually lower than normal for this time of year due to the cold winter and spring.
  • Most importantly, our water supply remains safe; we expect it will remain safe, and our water continues to be treated and distributed as normal.

At the request of the Governor and the State of Ohio, the Cleveland Division of Water dispatched our 400 gallon water buggy and filled four (4) ODNR tanks each with approximately 550 gallons of water (approximately 2200 gallons total) to the Toledo area this past Saturday to assist with relief efforts.  The use and/or deployment of these assets was determined by those in the Toledo area working to mitigate the situation. Cleveland Water will continue to assist with water, personnel, and/or other supplies as requested.

To contact Cleveland Water, visit