Gilliom, R., Barbash, J., Crawford, C., Hamilton, P., Martin, J., Nakagaki, N. 2007. The Quality of our Nation’s Waters – Pesticides in the Nation’s Streams and Groundwater, 1992-2001. USGS Circular 1291. US Geological Survey, Reston, VA.

http://pubs.usgs.gov/circ/2005/1291/

agriculture, Assessment, groundwater, pollutant, surface water

The National Water Quality Assessment (NAWQA) Program of the U.S. Geological Survey conducted a comprehensive national analysis of 51 major hydrologic systems across the country from 1992-2001. NAWQA results show where, when, and why specific pesticides occur in streams and ground water across the Nation, and yield science-based implications for assessing and managing the quality of our water resources