Thompson Lake

Thompson Lake

Welcome to the Thompson Lake website.  This is your source of information for news and events relating to the lake management activities.

The Livingston County Drain Commissioner's Office (LCDC) serves two main functions on Thompson Lake:

Managing the Lake Level and Dam

The Thompson Lake level was established under Part 307 of the Natural Resources and Environmental Protection Act (NREPA), also known as Public Act 451 of 1994, as amended.  The summer and winter lake levels are mandated by a 1984 Court Order, which came about by petition from the residents.  The Livingston County Drain Commissioner is responsible for maintaining the levels through operation of the dam.  LCDC is also responsible for inspecting and maintaining the dam.  The Court Order requires the lake to be lowered three feet every other year.  To compensate for the potential loss of fish habitat, stocking of northern pike is required in the years the lake level is lowered.

Managing the Weed Control Program

The Thompson Lake Improvement Board (LIB) was established under Part 309 of NREPA.  The Board initiates public hearings to establish a lake improvement project based on the needs of the lake and feedback from the residents.  The lake improvement project could include various activities such as weed control, dredging, engineering studies, plant surveys, etc.  The Board is responsible for managing the detailed activities of the approved lake improvement project.

For questions regarding Thompson Lake, please contact Mitch Dempsey at or call 517-546-0040.


Summer Lake Level

There was no lake level change through the winter of 2019.  The summer lake level on Thompson Lake is already in place as stated in the court order.

Tentative Treatment Schedule

The first treatment on Thompson Lake will be indicated with the 2020 Lake Management plan which is currently being developed. 

Lake Improvement Board Meetings:

No meetings scheduled at this time.

 Fish Stocking

Thompson Lake is stocked with fish every other year as a requirement of the 1984 Court Order, which sets the elevation of the lake and allows the lake to be lowered every other year.  The most recent stocking occurred in November 2018.  The next fish stocking event will occur in 2020. 

 Recent Activities

Several activities were completed in 2019, including:
  • Weed Treatments
  • Dam inspection
  • Weed Harvesting

 Future Activities

Several activities are planned for 2020, including:
  • Fish Stocking
  • Adding new hazard sign to boat launch
  • Continuation of weed control program

 Lake Resources

Coming Soon! 

The Lake Resources page provides helpful information about Thompson Lake, including lake photos, maps, and information about the legal lake level. Click here to access these resources.