Grand Lake -
Like many lakes, Grand Lake Saint Marys has struggled with blue-green algae. After dredging and alum treatments on the lake, Wright State professor Dr. Robert Hiskey says, the problem is still not under control.
Taking samples over the years, Dr. Hiskey has noticed a reduction in the amount of phosphorous in the lake following treatments, but says amounts are still too high. As for species composition in the lake, planktotrix, a blue-green bacteria, still dominates the lake.
In order to fix the problem, Hiskey says there needs to be a drastic change in the lake, and that could take some time. As it stands right now,, signs are posted warning the young and elderly about the algae levels and the dangers of the water.
