ClientThompson Lake Improvement Board
LocationLivingston County, MI
Thompson Lake is an impoundment with three distinct basins that were historically ponds surrounded by wetland areas. Because Thompson Lake’s bottomlands are nutrient rich, plant growth is abundant and requires a multi-faceted management approach. Each year, selective aquatic herbicides are applied to the lake to control Eurasian milfoil and curly-leaf pondweed. Mechanical harvesting is used to removed significant starry stonewort and nuisance native plant biomass each summer. Water quality monitoring focuses on phosphorus loads, oxygen content, and chlorides. Ongoing monitoring shows that cultural factors such as fertilizing lawns and road salting are having an impact on the lake’s water quality.