Draft Lake Winona Phosphorus Total Maximum Daily Load

The Clean Water Act (1972) requires that each State develop a plan to identify and restore any waterbody that is deemed impaired according to state regulations. A Total Maximum Daily Load (TMDL) Study is thus required by the U.S. Environmental Protection Agency (EPA) as a result of the federal Clean Water Act. A TMDL identifies the pollutant that is causing the impairment and how much of that pollutant can enter the waterbody and still allow it to meet water quality standards. This TMDL study is for Lake Winona, which is located in the Long Prairie River Watershed (HUC 07010108), in central Minnesota. Lake Winona is on the 2014 EPA 303(d) list of impaired waters due to elevated phosphorus levels.
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Minnesota Water Research Digital Library
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Public Domain