Development of Lake Assessment Methods Based Upon the Aquatic Ecoregion Concept Image Date Issued 1989 Author Wilson, C. Bruce Walker, William W. Main Topic Surface Water Water Quality & Pollutants Water Use & Availability Water Conveyance & Hydraulics
Developing Phosphorus Criteria for Minnesota Lakes Image Date Issued 1988 Author Heiskary, Steven A. Walker, William W. Main Topic Surface Water Water Quality & Pollutants Water Use & Availability Water Conveyance & Hydraulics
Establishing a Chlorophyll a Goal for a Run-of-the-river Reservoir Image Date Issued 1995 Author Heiskary, Steven A. Walker, William W. Main Topic Surface Water Water Quality & Pollutants Water Use & Availability Water Conveyance & Hydraulics
Simplified Procedures for Eutrophication Assessment and Prediction: User Manual Image Date Issued 1999 Author Walker, William W. Main Topic Water Quality & Pollutants Water Conveyance & Hydraulics Hydrology