Swimming Advisory

We recently had water samples from the lake tested for the green algae that appeared earlier this month. Here is what we learned:

What the results showed

The lab found two types of cyanobacteria (sometimes called “blue-green algae,” though they often look green). Both were present at very high levels in the area sampled.

What this means for you

Please do not swim in the affected area until we report that it has cleared. Both types found can produce toxins, which can be harmful to people and pets. Please also keep children and pets out of the water and away from any visible green scum along the shoreline.

Is this normal?

Partly. Cyanobacteria naturally live in lakes and ponds, and they tend to show up more often in the fall, though they can appear at any time of year. Our lake has seen blooms around late September and October in past years, and the lab says this is common across the region this time of year. However, the levels found in this sample are well above what is normally present, which is why we’re asking for caution.

What we’re seeing now

Some of the visible algae had faded in many spots by the weekend. That doesn’t necessarily mean the water is safe, since toxins can linger after a bloom looks like it’s gone. We’re keeping an eye on conditions and will send another update when we know more.