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:

  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 2019.
  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 MDEQ permit.  The project was initiated by petition in 2015 and will extend through 2019.
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.


Meeting notices and treatment dates will be posted here.

The 2020 Treatment Plan will be developed in the Spring and will be posted on the website when completed.

Scheduled Lake Treatments:

There are currently no scheduled treatments. 

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

Lake Improvement Board Meetings:

Hearings Of Practicability And Review Of Lake Tyrone Special Assessment Rolls

Wednesday, April 8th, 2020 at 7:30pm (CANCELLED)

Hartland Township Hall

265 Clark Rd, Hartland, Michigan 48353

 Project Information

2020-2022 Weed Control Draft Assessment Roll

2021-2022 Aeration Draft Assessment Roll


PDF Icon2019 Budget

Weed Control

3-year budget:  $128,700
Annual assessment per property:  $221.13
PDF IconWeed Control Project Scope (as presented and approved at the public hearings on June 6, 2016)


5-year budget:  $331,469
Annual assessment per property: $341.72
PDF IconAeration Project Scope (as presented and approved at the public hearings on March 24, 2015)