Whitmore Lake

This lake management project provides lake improvement to Whitmore Lake by controlling invasive and nuisance aquatic weeds.

The weeds are controlled by the application of special chemicals to the lake, followed by additional spot applications as necessary. The current lake management project is for a five year period (2018-2021).

The special assessment district for the Whitmore Lake Improvement Project is situated within Northfield Township, Washtenaw County, and Green Oak Township, Livingston County. There are 868 parcels located in the special assessment district.

Aerial image of the Whitmore lake and surrounding area

Aquatic Plants

Aquatic plants are an important part of any lake or pond. They provide food and protection for fish, waterfowl, insects, mammals and microscopic animals. These plants also help replenish oxygen to the aquatic environment, critical for the survival of fish and other aquatic organisms.

However, aquatic plants can also become a nuisance. Invasive plants that are not native to Michigan can grow rapidly out of control, choking out other plants and organisms and reducing recreational options in the lake.

Starry Stonewort

Starry stonewort is one example of an invasive plant seen in Michigan waters. Click here to learn more about starry stonewort from the Huron River Watershed Council. 

Whitmore Lake Documents

Treatment Notices

June 7, 2021 Treatment Map

Whitmore Lake 2021 Treatment Notice

Herbicide Application & Weed Harvesting Maps


Financial Reports

View the Whitmore Lake Financial Reports.

Field Reports

View the Whitmore Lake Field Reports.

Annual Reports

View the Whitmore Lake Annual Reports.

Special Assessment District Information

Public Hearing 2017

The purpose of this meeting was to hear objections to a proposed Lake Improvement Project for Northfield Township in Washtenaw County and for Green Oak Township in Livingston County. The meeting took place on August 30, 2017.

Other Reports & Resources

  • 2006 Fishery Habitat Assessment Report (PDF): The information included in this report pertains to fishery habitat assessment conducted by SEAS on 27 June 2006.Fish on a Hook
  • March 15, 2006 - The Northfield Courant Newspaper: Project Update (PDF): The Whitmore Lake Water Quality Advisory Board met to discuss the results of the 2005 lake management activities as well as the plans for 2006 and the renewal of the Whitmore Lake Improvement Project. The 2006 outlook for boating, swimming and fishing this summer is outstanding due to the efforts of the past and the continuing efforts to combat the spread of invasive hybrids and other nuisance species.
  • June 25, 2005 - The Northfield Courant Newspaper (PDF): Whitmore Lake Quality Shows Marked Improvement: The Whitmore Lake Improvement Project is a three-year lake management project coordinated by the Washtenaw County Board of Public Works on behalf of Northfield and Green Oak Townships. The project involves yearly fishery, vegetation and water quality studies. The data obtained from the studies is utilized to determine the types of control measures applied to stop the proliferation invasive species and improve the overall health of the lake.
  • 2010 Fishery Habitat Assessment Report (PDF) Washtenaw County Division of Public Works as part of the Whitmore Lake improvement Project contracted with Aquest Corporation and Superior Environmental & Aquatic Services LLC (SEAS) to conduct assessments of aquatic vegetation and fishery habitat. 
  • 2010 - Update on Observations of Starry Stonewort (PDF)