Water Quality in the Trinity River Basin, Texas, 1992-95

By Larry F. Land, J. Bruce Moring, Peter C. Van Metre, David C. Reutter, Barbra J. Mahler, Allison A. Shipp, and Randy L. Ulery

U.S. Geological Survey Circular 1171

Title Page
National Water-Quality Assessment Program
Summary of Major Issues and Findings in the Trinity River Basin
Environmental Setting and Hydrologic Conditions
Nutrients in Streams
Pesticides in Streams
Determining Water-Quality Trends Using Sediment Cores
Organochlorines in Streambed Sediments and Aquatic Biota
Stream-Habitat Characteristics and Fish-Community Degradation
Semipermeable Membrane Device (SPMD to Assess Occurrence of PAHs in Streams
Fish Community Changes
Quality of Groundwater in Aquifer Outcrops
Comparison of Surface-Water Results with Nationwide NAWQA Findings
Comparison of Groundwater Results with Nationwide NAWQA Findings>
Study Design and Data Collection
References
Glossary

Trinity River Basin NAWQA Study Unit
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Last modified: Thu Aug 19 14:59:16 CDT 1999

Water Quality in the Trinity River Basin, Texas, 1992-95

By Larry F. Land, J. Bruce Moring, Peter C. Van Metre, David C. Reutter, Barbra J. Mahler, Allison A. Shipp, and Randy L. Ulery

U.S. Geological Survey Circular 1171

Table of Contents