Lake Tyrone

Lake Tyrone

Welcome to the Lake Tyrone website, your source of information for news and events regarding lake management activities administered by the Lake Improvement Board.

The Lake Tyrone Improvement Board (LTIB) was established under Part 309 of the Natural Resources and Environmental Protection Act (NREPA). Formation of the LTIB was initiated by petition of the residents in 2003.  The Board holds public hearings to establish a lake improvement project based on the needs of the lake and feedback from the residents.  A lake improvement project could include various activities such as control of nuisance aquatic plants, dredging, engineering studies, plant surveys, aeration, etc. The Board is responsible for managing the activities of the approved lake management project.

Lake Tyrone residents have petitioned separately for two different projects which have now been combined into one:

  1. Weed Control - This project includes weed control based on lake surveys and recommendations of the lake management consultant.  The project was originally initiated by petition in 2003 and was recently extended through 2023.
  2. Aeration - This project includes installation of an aeration system, bio augmentation, ongoing operation and maintenance of the system, and sampling in accordance with the EGLE permit.  The project was initiated by petition in 2015 and will extend through 2023.
The LTIB meets on an as-needed basis.  Meeting notices are posted on the Drain Commissioner's website, at the Township Halls, and at the County administration office. As we reach the end of the projects, the LTIB will hold hearings to determine if each project should continue.  Residents will be notified of the hearings by letter sent via first class mail. 

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


Lake Management Plan:

Scheduled Lake Treatments:

No treatments scheduled at this time.  Please see 2023 Lake Tyrone Management plan for estimated treatment schedule.

The following link provides more information on permitting and restrictions for various treatments:  Treatment Information

Lake Improvement Board Meetings:

March 23, 2023 at 1:00pm located at Tyrone Township Hall, 8420 Runyan Lake Road, Fenton, Michigan 48430

 Project Information

2021-2023 Weed Control/Aeration Assessment Roll


2021-2023 Budget

Aeration/Weed Control

3-year budget:  $318,86.40
Annual assessment per property:  $559.41