Lake Madison Development Association
Lake Cpounty Copnservation District
South Dakota Lakes and Streams Association
Lake County Conservation District
South Dakota Department of Environment and Natural Resources Watershed Protection Program
South Dakota Department of Environment and Natural Resources Watershed Rights
South Dakota Department of Environment and Natural Resources Ground Water Quality Program
South Dakota Department of Environment and Natural Resources Surface Water Quality Program
South Dakota Department of Environment and Natural Resources Feedlots (How to file a complaint)
State of South Dakota (Current Headlines & useful links)
South Dakota Water Resources Institute (utilizes student Internship Program for water testing)