Kidd M. Waddell 1999 The Great Salt Lake Basins NAWQA study will increase the scientific understanding of the factors that influence surface- and ground-water quality. This information will benefit water-resources managers that need, but often lack, the data required to implement effective water-quality management actions and evaluate long-term changes in water quality. application/pdf 10.3133/fs13299 en U.S. Geological Survey National Water-Quality Assessment Program: Great Salt Lake basins study unit reports