National Lakes Assessment 2012 A Collaborative Survey of Lakes in the United States Image Date Issued 2016-12 Author United States Environmental Protection Agency Main Topic Water Monitoring & Assessment Surface Water
National Lakes Assessment 2012: Technical Report Image Date Issued 2017-04 Author United States Environmental Protection Agency Main Topic Water Monitoring & Assessment Surface Water
National Lakes Assessment A Collaborative Survey of the Nation's Lakes Image Date Issued 2009 (year uncertain) Author U.S. Environmental Protection Agency Main Topic Water Quality & Pollutants Water Monitoring & Assessment Surface Water
