Management

Lake Management Plan

A comprehensive strategy developed by lake associations, local governments, and agencies to protect or restore water quality in a specific lake.

What It Means for Your Lake

A lake management plan is a formal, science-based document that assesses the current condition of a lake, identifies threats to water quality, and prescribes specific actions to protect or improve the lake over a defined time period, typically 10 to 20 years. In Minnesota and Wisconsin, lake management plans are typically developed by lake associations or local government units (counties, watershed districts, or soil and water conservation districts) in partnership with state agencies and environmental consultants. A comprehensive plan includes several core components: a diagnostic study that characterizes the lake's physical, chemical, and biological conditions; a watershed assessment that identifies land uses and nutrient sources; water and phosphorus budgets that quantify inputs from all sources; water quality goals based on state standards and desired lake uses; and an implementation plan with specific actions, timelines, responsible parties, and cost estimates. Common management actions prescribed in lake plans include shoreline buffer restoration, septic system upgrades, agricultural best management practices in the watershed, stormwater management in developed areas, aquatic invasive species prevention, rough fish management (especially common carp removal), and in some cases, in-lake treatments such as alum dosing to bind phosphorus in sediments. Both Minnesota and Wisconsin provide funding for lake management planning through their state agencies, the Minnesota Board of Water and Soil Resources (BWSR) and Wisconsin DNR. Completed plans are essential for accessing implementation funding from state and federal sources. The most successful lake management plans are those backed by engaged lake associations with strong volunteer participation, sustained funding through lake improvement districts with taxing authority, and long-term monitoring programs that track progress toward water quality goals.

Frequently Asked Questions