Long-term lake level records are useful for regulatory decision-making, building/development decisions, lake hydrology manipulation decisions, and investigation of possible non-natural impact on lake levels. ACD implements a lake level monitoring program on 23 lakes throughout the county. An enamel gauge is installed in each lake and surveyed so that readings coincide with sea level elevations. The gauge is read weekly by ACD staff or by a volunteer who reports to the ACD.
The ACD reports all lake level data to the Minnesota Department of Natural Resources (MN DNR). The data is available through the "LakeFinder" feature on the MN DNR website, along with other information about each lake.