1. Occurrence of pesticides in groundwater underlying areas of high-density row-crop production in Alabama, 2009-2013 Author/Creator: Welch, Heather L., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015 Format: Book Access & Availability: Loading
2. Concentrations and transport of suspended sediment, nutrients, and pesticides in the lower Mississippi-Atchafalaya River Subbasin during the 2011 Mississippi River flood, April through July Author/Creator: Welch, Heather L., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Format: Book Access & Availability: Loading
3. Streamflow characterization and summary of water-quality data collection during the Mississippi River flood, April through July 2011 Author/Creator: Welch, Heather L., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013 Format: Book Access & Availability: Loading