Use of GIS to Identify and Delineate Areas of Fluoride, Sulfate, Chloride, and Nitrate Levels in the Woodbine Aquifer, North Central Texas, in the 1950s, 1960s, 1970s, 1980s, and 1990s

ArcView and ArcInfo were used to identify and delineate areas contaminated by fluoride, sulfate, chloride, and nitrate in the Woodbine Aquifer. Water analysis data were obtained from the TWDB from the 1950s to 1990s covering 9 counties. 1990s land use data were obtained to determine the relationship with each contaminant. Spearman's rank correlation coefficients and Kruskal-Wallis tests were used to calculate relationships between variables. Land uses had little effect on distributions of contaminants. Sulfate and fluoride levels were most problematic in the aquifer. Depth and lithology controlled the distributions of each contaminant. Nitrate patterns were controlled mainly by land use rather than geology, but were below the maximum contaminant level. In general, contaminant concentrations have decreased since the 1950s.

Grantor dc:publisher

University of North Texas

Year dc:date

2001

Author dc:creator

• Sanmanee, Sirichai

Contributors dc:contributor

• Hudak, Paul F.
• Ji, Minhe
• Lyons, Donald I.
• Ferring, C. Reid

• Groundwater -- Pollution -- Texas -- Woodbine Aquifer.
• Water quality -- Texas -- Woodbine Aquifer.
• Geographic information systems.
• GIS
• gound water contamination
• flouride sulfate
• chloride
• nitrate
• north central Texas

Statement dc:rights

• Public
• Copyright
• Sanmanee, Sirichai
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 51225737
https://digital.library.unt.edu/ark:/67531/metadc2869/
ark: ark:/67531/metadc2869

OAI identifier oai:identifier

info:ark/67531/metadc2869