Denver, J. M., Cravotta III, C. A., Ator, S. W., Lindsey, B. D. 2010. Contributions of phosphorus from groundwater to streams in the Piedmont, Blue Ridge, and Valley and Ridge Physiographic Provinces, Eastern United States. USGS Scientific Investigations Report 2010-5176. USGS, Reston, VA.

baseflow, chemistry, groundwater, impacts, nutrients, sampling, water quality

Water quality data collected from 1991 – 2007 in paired networks of groundwater and streams in different hydrogeologic and land use settings in 3 physiographic provinces were analyzed for the Eastern United States. The data was compiled and analyzed to evaluate the sources, fate and transport of phosphorus.