B. W Drost

• Changes in ground-water levels and ground-water budgets, from predevelopment to 1986, in parts of the Pasco Basin, Washington
• Geologic framework of the Columbia Plateau Aquifer System, Washington, Oregon, and Idaho
• Long-term effects of irrigation with imported water on water levels and water quality
• Progress report on water resources of the Tulalip Indian Reservation, Washington
• Selected ground-water information for the Pasco Basin and adjacent areas, Washington, 1986-1989
• Water resources of Clallam County, Washington
• Water resources of the Swinomish Indian Reservation, Washington