In 2004, Minnesota's East Boot Lake was listed for nutrients with a 27-pound phosphorus target. 18 years later, targeted projects improved water quality and led to delisting in 2022

In 2004, East Boot Lake in Minnesota was added to the Clean Water Act Section 303(d) list of impaired waters because of excess phosphorus and chlorophyll-a concentrations.

Eighteen years later, targeted watershed and in-lake management strategies had improved water quality conditions, leading to the lake's removal from the state's impaired waters list.