Advisory for Rock Lake, Ontario

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Rock Lake

Type: Cyanobacteria Bloom  -  Inactive

Issued: 9/28/2017

Details:

Laboratory results from a water sample submitted to the Ministry of the Environment and Climate Change 
confirmed the presence of a blue-green bloom in Rock Lake.

As a precautionary measure, Algoma Public Health recommends that residents:

 
Not drink, swim in, bathe, or shower with the water, even water that passes 
through a treatment system since these systems are not capable of removing the toxins.

Not use bleach to treat water as this can release toxins from the algae 
and will not make the water safe for drinking or cooking.

Not eat fish caught during a blue-green algae bloom.

Avoid activities involving direct contact with the water such as swimming and water skiing.

Use alternative water sources such as bottled water or water obtained from a safe water supply.

Restrict pet and livestock access to the water.