P. Patrick Leahy

• Sustainability of energy and water through the 21st Century
• A three-dimensional ground-water-flow model modified to reduce computer-memory requirements and better simulate confining-bed and aquifer pinchouts
• Digital model of the Piney Point aquifer in Kent County, Delaware
• Geohydrology and simulation of ground-water flow in the northern Atlantic coastal plain aquifer system
• Ground-water resources of the Piney Point and Cheswold aquifers in central Delaware as determined by a flow model
• Hydraulic characteristics of the Piney Point aquifer and overlying confining bed near Dover, Delaware
• Implementation plan for the National Water-Quality Assessment Program
• Management of ground water and evolving hydrogeologic studies in New Jersey
• National Water-Quality Assessment Program