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Blue Green Algae

Blue-green algae are bacteria that grow in lakes, ponds, and other water sources. Like any bacteria, blue-green algae reproduce best in combinations of warm temperatures, sunlight, and nutrient-rich water sources. With these combinations, the bacteria can burst and reproduce rapidly, filling lakes, ponds and ditches with cloudy bluish-green growth. Blue-green algae can prove toxic if ingested in large amounts, and can kill pets and animals if contacted.


Utah Department of Health
Bureau of Epidemiology
Fax: 801-538-9913
288 North 1460 West
PO Box 142104
Salt Lake City, Utah 84114-2104

24-Hour Urgent Event & Disease Reporting

1-888-EPI-UTAH (374-8824)

Regular Business Hours:

Monday - Friday
8:00 a.m. - 5:00 p.m.

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