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David A Saad


David Saad is a Hydrologist with the U.S. Geological Survey, Wisconsin Water Science Center in Middleton, Wisconsin.  His current research with the USGS involves estimating loads and concentrations of nutrients and sediment in streams over large geographic areas, including the Great Lakes and Mississippi River Basins.  He is also involved with the Groundwater Status and Trends component of the USGS National Water-Quality Assessment Program looking at trends in groundwater quality.    



B.S. in Geology, University of Wisconsin-Madison, 1987



  • Regional water-quality modeling of stream loads using SPARROW
  • Using GIS with environmental models
  • Ground-water quality network design, installation and sampling
  • Trends in ground-water quality
  • Ground-water age dating
  • Simulation of ground-water flow



  • Watersheds and Regioinal Studies, Team Leader
  • National Water-Quality Assessment Program-Midwest SPARROW modeling team
  • National Water-Quality Assessment Program-Groundwater Status and Trends