Report submitted

(11-29-21) – The Lake Improvement Association recently published a review of 2021 Grand Lake St. Marys improvement efforts and results. The full review can be found on the LIA website at

Highlights include:

• Grand Lake St. Marys recorded its lowest levels of total microcystin toxins in a decade
• Treatment trains reduced phosphorus and sediment concentrations by up to 95%
• Algae warning signs were removed and absent from beaches most of the year
• Construction began on a new 40-acre wetland
• The dredge program removed 396,808 cubic yards of material from the lake
• Tourism rebounded, nearly doubling lodging tax revenues from 2020

Many people and organizations collaborated to make 2021 a good year for Grand Lake St. Marys improvement, from water quality and amenities to recreational experiences and economy. Community support is a major driver of those efforts, and the Lake Improvement Association applauds all those who contribute to make Grand Lake St. Marys an economic engine, wildlife habitat and recreation destination.

It will take ongoing support and work to keep everything trending in the right direction. Our community faces new and constant challenges and must remain proactive to continue to work toward a restored Grand Lake St. Marys and a brighter future for all who enjoy and depend on the lake.
Read the full review here:

The purpose of the Lake Improvement Association is to promote closer fellowship and cooperation among farmers, landing owners and park operators; to advance the general improvement of the lake, its shores, channels, creeks, landings, parks and land in order to promote good health, soil stability, and clean, wholesome recreation for the public and private use of the area adjacent to the shores of the Grand Lake St. Marys, located in Mercer and Auglaize counties in the State of Ohio.