Cyanobacteria Information (June, 2025)
On 6/27/25, we identified a Cyanobacteria outbreak on Matthews lake. We noticed 2″ round spheres of algae floating in the water last weekend along with a “fishy” smell. To read more, click here.
Matthews Lake Chemistry (May, 2025)
Our report may be helpful for understanding acceptable ranges (low and high) for each measure tested in our May 2025 sample. Pulled from online resources. Ranges are based on guidance from the Wisconsin DNR, EPA, and limnology research, with a focus on northern Wisconsin natural lakes. To view the full report, click here.
Matthews Lake Water Quality Report (August, 2025)
We are classified as a Mesotrophic (“middle aged”) lake by the State of Wisconsin. The definition of a Mesotrophic Lake is: “Waters with more nutrients and, therefore, more biological productivity. These lakes are intermediate with respect to depth, chlorophyll concentration, water clarity, and aquatic plants “. That is in contrast to an older or Eutrophic lake with waters extremely rich in nutrients, with high biological productivity. To view the full report, click here.