U.S. Geological Survey, Water-Resources Investigations Report 01-4185
by Anne B. Hoos, Jerry W. Garrett, and Rodney R. Knight
Table of Contents
Abstract
Introduction
Purpose and Scope
Acknowledgments
Study Objectives and Approach
Design of Monitoring Program
Watershed Inputs
Hydrologic Conditions
Water Quality of the Flint River Basin
Pesticides
Comparison of Watershed Inputs to Detection Frequency, Instream Concentrations, and Yields
Variation of Concentrations with Season and Streamflow
Comparison of Concentrations with Criteria to Protect Aquatic Life
Spatial Variation of Concentrations During Base Flow
Fecal-Indicator Bacteria
Variation of Concentrations with Streamflow and Turbidity
Spatial Variation of Concentrations During Base Flow
Nutrients
Variation of Concentrations with Season and Streamflow
Spatial Variation of Concentrations During Base Flow
Relation of Storm Transport of Selected Pesticides in the Flint River Basin
to Concentrations
in the Source for Drinking Water for the City of Huntsville, Alabama
Summary
References Cited
Appendix A. Methods for Estimating Watershed Input and Instream Yield of Pesticides, Nitrogen, and Phosphorus for the Flint River Basin, Alabama and Tennessee
Watershed Input
Instream Yield
Appendix B. Input and Export Estimates and Detection Frequency of Selected Pesticides for the Flint River and Hester Creek, 1998-2000
Appendix C. Input and Export Estimates of Nitrogen and Phosphorus for the
Flint River and Hester Creek, 1998-99