Water quality in the Trinity River basin, Texas, 1992-95
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Abstract
Water quality in the Trinity River basin was studied during 1992-95 as part of the USGS National Water-Quality Assessment (NAWQA) Program. Studies included chemical sampling of streams, streambed sediments, biota, and ground water; measuring distributions of biological communities in streams; and measuring physical characteristics of streams that affect biological habitat. The sampling design, in general, relates water-quality conditions to causative human and natural environmental factors. The occurrence of pesticides, for example, is related to land use. Trends are mixed, with a substantial improvement in the diversity of fish species downstream from Dallas and large decreases in regulated contaminants such as DDT; but increases in unregulated contaminants such as polychlorinated biphenyls.
Suggested Citation
Land, L.F., Moring, J., Van Metre, P., Reutter, D., Mahler, B., Shipp, A.A., Ulery, R.L., 1999, Water quality in the Trinity River basin, Texas, 1992-95: U.S. Geological Survey Circular 1171, 39 p., https://doi.org/10.3133/cir1171.
ISSN: 2330-5703 (online)
ISSN: 1067-084X (print)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Water quality in the Trinity River basin, Texas, 1992-95 |
| Series title | Circular |
| Series number | 1171 |
| ISBN | 0607892331 (pbk.) |
| DOI | 10.3133/cir1171 |
| Year Published | 1999 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Texas Water Science Center, Rocky Mountain Regional Office |
| Description | 39 p. |
| Country | United States |
| State | Texas |
| Other Geospatial | Trinity River basin |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |