1. Nitrogen and Phosphorus Concentrations and Fluxes of Streams in the Mississippi Embayment Study Unit, 1996–98,2001
2. The Quality of Our Nation’s Waters—Nutrients in the Nation’s Streams and Groundwater, 1992–2004,2010
3. Water Quality in the Mississippi Embayment--Texas Coastal Uplands Aquifer System and Mississippi River Valley Alluvial Aquifer, South-Central United States, 1994--2008,2014
4. Occurrence of Phosphorus in Groundwater and Surface Water of Northwestern Mississippi. U.S. Geological Survey, Conference Paper;Welch;Proceedings of the 2010 Mississippi water Resources Conference,2010
5. Quality of Shallow Groundwater and Drinking Water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, South-Central United States, 1994–2004,2009