Hydrogeologic assessment of shallow flow systems in the Walnut Formation, central Texas

Conference · Mon Feb 01 04:00:00 EST 1993 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:6003118

Feckley, D L ^[1]

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1. Baylor Univ., Waco, TX (United States). Geology Dept.

The Walnut Formation crops out in the limestone dominated terrain of the Grand Prairie in Central Texas. The Walnut is the only clay-rich member within this dominantly limestone section. Because of its clay-rich nature, agricultural landuse of the Walnut Formation is greater than on surrounding formations. The clay content also makes the Walnut a natural consideration for waste disposal sites. However, many drainages and streams receive baseflow from the Walnut, and the Walnut overlies the Paluxy Aquifer, a minor aquifer in the State of Texas. Therefore, understanding the hydrogeology of the Walnut becomes increasingly important in order to protect baseflow water quality, and the underlying Paluxy Aquifer. Evaluation of hydrogeologic properties includes well hydrograph analysis, slug tests, pumping tests and laboratory tests. Results strongly indicate the presence of shallow flow systems, which are influenced by geomorphology and stratigraphy. An understanding of the geomorphic evolution of the region greatly aids the groundwater investigations.

• OSTI ID: 6003118
• Report Number(s): CONF-9303212--
• Conference Information: Journal Name: Geological Society of America, Abstracts with Programs; (United States) Journal Volume: 25:1
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
AQUICLUDES
AQUIFERS
CARBONATE ROCKS
CLAYS
DEVELOPED COUNTRIES
GEOLOGIC FORMATIONS
GEOLOGY
GEOMORPHOLOGY
GROUND WATER
HYDRAULIC CONDUCTIVITY
HYDROGEN COMPOUNDS
HYDROLOGY
LIMESTONE
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
ROCKS
SEDIMENTARY ROCKS
SITE CHARACTERIZATION
STRATIGRAPHY
TEXAS
USA
WATER
WATER POLLUTION