Lake Levels - Portage / Base Line

Portage and Baseline lakes are located in Dexter and Webster Townships. The Lake Level District includes lands in both Washtenaw and Livingston County, Washtenaw County includes approximately 545 parcels in the assessment district. The Water Resources Commissioner’s Office actively monitors the level of the lake. 

Established Lake Levels

• The legally established summer lake level is 851.54 feet
• The legally established winter lake level is a range between 850.04 feet and 850.29 feet

Lake Level Reports

• 2021 Lake Level Report (PDF)
• 2020 Lake Level Report (PDF)
• 2019 Lake Level Report (PDF)
• 2018 Lake Level Report (PDF)
• 2017 Lake Level Report (PDF)
• 2016 Lake Level Report (PDF)
• 2015 Lake Level Report (PDF)

Lake Level Notices 

Read the March 17th, 2021 press release for lake level.