Estimated agricultural pesticide use for Southeast Stream-Quality Assessment, 2014

Open-File Report 2015-1224



One of the goals of the U.S. Geological Survey (USGS) Southeast Stream-Quality Assessment (SESQA) is to characterize contaminants at perennial-stream sites throughout the southern Piedmont and southern Appalachian Mountains. The evaluation of pesticide inputs from agricultural sources will aid in that characterization.

Methods used for calculating county-level pesticide use documented in this report are from methods developed and described by Thelin and Stone (2013) and Baker and Stone (2015). Two methods for calculating estimated pesticide use (EPest) rates—EPest-low and EPest-high—were applied in this study to estimate a probable range in the annual amounts of pesticide used for agriculture in 2014. To calculate watershed-level estimates, county-level use was proportionally allocated to agricultural land within each watershed. Concentrations of 262 pesticide compounds were estimated and compiled for subsequent analysis by the USGS National Water Quality Assessment Program, Southeast Stream-Quality Assessment.

This report provides estimates of annual agricultural use of 262 pesticide compounds for counties and selected watersheds in parts of eight southeastern States for 2014. Estimates of county- and watershed-level annual agricultural pesticide use are provided as downloadable, tab-delimited files for both EPest-high and EPest-low.

Suggested Citation

Baker, N.T., 2016, Estimated agricultural pesticide use for Southeast Stream-Quality Assessment, 2014 (ver 2.1, July, 2016): U.S. Geological Survey Open-File Report 2015–1224, 5 p.,

ISSN: 2331-1258 (online)

Study Area

Table of Contents

  • Introduction
  • Estimation Methods
  • Pesticide Use Data
  • Acknowledgments
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Estimated agricultural pesticide use for Southeast Stream-Quality Assessment, 2014
Series title Open-File Report
Series number 2015-1224
DOI 10.3133/ofr20151224
Edition Version 1.0: Originally posted December 1, 2015; Version 2.0: December 14, 2015; Version 2.1: July 19, 2016
Year Published 2016
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Indiana Water Science Center
Description Report: iii, 5 p.; 3 Tables
Time Range Start 2014-01-01
Time Range End 2014-12-31
Country United States
State Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, Virginia, West Virginia
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details