Microcystin is a compound that can be produced by blue-green algae and can be harmful to people and pets.

If raw water samples have more than 0.3 micrograms per liter, additional monitoring of both the raw and treated drinking water will be completed. If the treated water microcystin results are above 3 micrograms per liter on any two days during a 10-day period or consistently above 0.3 micrograms per liter during a 10-day period, the public will be notified and possible treatment changes will be implemented to mitigate the occurrence.

Click to read more on Iowa microcystin testing

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