Grand Lake Red Flags

(6-22-20) The Ohio Department of Health is reporting unsafe levels of bacteria in Grand Lake (St. Marys).

The State water health advisory has issued a harmful algal bloom advisory for the lake.

There are currently 12 advisories in Ohio, but Grand Lake (St. Marys) is the only waterway marked red flags. The elevated public health advisory means people should avoid all contact with the water.

The Outlook received an email earlier today from a concerned citizen about lake conditions.

It is frightening to see the number of jet skiers and boaters pulling children on floats around in GLSM. It was also sad to see people on the north side beach allowing small children to play in the lake this past weekend. The beach is not safe and the lake is not safe, especially for young children and the elderly. The lake is still posted for the public to have no contact with the water. Below is the current reported level of microcystins in GLSM.

06/22/2020 – Microcystins are 68.6 ppb.
Toxin levels still dangerous!

The OEPA threshold for Microcystin posting is 6.0 ppb and the WHO is 20.0ppb.
Ohio Health Dept has posted a “No Contact” warning for Grand Lake (St. Marys).

Mary Shaffer, ODH’s recreation program administrator told WDTN

“The most common toxin that we see out there is a toxin called microcystin, and microcystin can affect the liver, it can make you sick and those are things that people really want to stay away from. There are other toxins that the harmful algal blooms can produce that affect the nervous system and also impact the skin, or dermatoxins, and give you a rash.”