|Home||Archived January 13, 2017||(i)|
Woodside, M.D., and Atkins, J.B., 1998, National Water-Quality Assessment Program in the Mobile River and lower Tennessee River Basins [abs.], in Durrans, S.R., and Nix, S.J., eds., Annual Water Resources Conference, Point Clear, Ala., Nov. 16-19, 1998, Abstracts: American Water Resources Association, p. 55.
The U.S. Geological Survey began the National Water-Quality Assessment (NAWQA) Program in 1991 to address the need for consistent and scientifically sound information for the management of the Nation's water resources. The objectives of the NAWQA Program are (1) to describe current water-quality conditions for a large part of the Nation's streams and aquifers, (2) to describe how water quality is changing with time, and (3) to improve our understanding of the natural and human factors affecting water quality. The Mobile River and lower Tennessee River NAWQA studies began in 1997. The Mobile River NAWQA study area encompasses about 44,000 square miles and consists of the Alabama and Tombigbee River Basins. The lower Tennessee River NAWQA study area encompasses about 19,500 square miles and consists of the Tennessee River and its tributaries from Chattanooga, Tennessee, to its mouth at the confluence with the Ohio River near Paducah, Kentucky.
Natural and cultural information have been compiled for the Mobile River and Lower Tennessee River NAWQA study areas and form the environmental setting framework. Physiography, geology, climate, and soils are some of the major natural factors that influence water quality. Human activities, such as urbanization and agriculture, can also influence water quality. Water-quality data from local, State, and Federal agencies have been compiled to describe spatial differences in nutrients, pesticides, and sediment in surface and ground water and relate these spatial differences to the environmental setting framework.
U.S. Department of the Interior, U.S. Geological Survey
|Home||Archived January 13, 2017|