Allegan Co. officials lift algae bloom advisory for Swan Lake

Allegan County

CHESHIRE TOWNSHIP, Mich. (WOOD) — Allegan County officials have lifted a green-blue algae bloom advisory for Swan Lake.

The Allegan County Health Department issued an advisory on Aug. 4 for Swan Lake, located in Cheshire Township, saying there was algal toxin microcystin in the lake. The advisory urged people and pets to stay out of the water.

A Nov. 18 test shows microcystin levels are no longer detected, the health department said in a Tuesday release, and it has lifted the advisory.

It said that while winter algae blooms are not common, any drastic water color changes or suspicious-looking algae should be reported to the state by calling the Environmental Assistance Center at 1.800.662.9278 or by emailing

ACHD is also reminding people that cyanotoxins can build up the meat of fish, and the Eat Safe Fish waterbody-specific guidelines should be followed for those wanting to consume fish caught in lakes.

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