National Water-Quality Assessment Program (U.S.)

• Evaluation of the surface-water sampling design in the Western Lake Michigan Drainages in relation to environmental factors affecting water quality at base flow
• National Water-Quality Assessment (NAWQA) Program
• Nutrient and chlorophyll relations in selected streams of the New England Coastal Basins in Massachusetts and New Hampshire, June-September 2001
• Sources, instream transport, and trends of nitrogen, phosphorus, and sediment in the lower Tennessee River basin, 1980-96
• Water-quality assessments in the nation's major river basins