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Publications

Publications from USGS science centers throughout the Southeast Region.

Filter Total Items: 10387

Development of ground-water resources in the Orange County area, Texas and Louisiana, 1980-Spring of 1985 Development of ground-water resources in the Orange County area, Texas and Louisiana, 1980-Spring of 1985

This report updates ground-water information pertaining to the lower unit of the Chicot aquifer in the Orange County area, Texas and Louisiana. The period of data collection was from 1980 to the spring of 1985. Some data collected prior to 1980 are presented to establish long-term trends and relations. The lower unit of the Chicot aquifer, which consists of sediments of Pleistocene age...
Authors
C.W. Bonnet, James Frank Williams

Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts

The Edwards aquifer is a complexly faulted, carbonate aquifer lying within the Balcones fault zone of south-central Texas. The aquifer is recharged mainly by streamflow losses in the outcrop area of the Edwards aquifer and is discharged by major springs located at considerable distances, as much as 150 mi, from the areas of recharge, and by wells. Groundwater flow within the Edwards...
Authors
R.W. Maclay, L. F. Land

Iowa ground-water quality Iowa ground-water quality

The population served by ground-water supplies in Iowa (fig. L4) is estimated to be about 2,392,000, or 82 percent of the total population (U.S. Geological Survey, 1985, p. 211). The population of Iowa is distributed fairly uniformly throughout the State (fig. IB), with 59 percent residing in rural areas or towns of less than 10,000 (U.S. Bureau of the Census, 1982). Surficial aquifers...
Authors
R.C. Buchmiller, P. J. Squillace, R.D. Drustrup

Floods in Iowa: Stage and discharge Floods in Iowa: Stage and discharge

This report presents stations descriptions and tables of peak stages and discharges for 280 continuous- and partial-record gaging stations in Iowa. Data for the annual flood series for each gaging station and partial-duration series, at stations where available, are contained in the report.
Authors
O. G. Lara, D. A. Eash

Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California

Samples of bluegills (Lepomis macrochirus) and common carp (Cyprinus carpio) collected from the San Joaquin River and two tributaries (Merced River and Salt Slough) in California were analyzed for 21 organochlorine chemical residues by gas chromatography to determine if pesticide contamination was confined to downstream sites exposed to irrigated agriculture, or if nonirrigated upstream...
Authors
Michael K. Saiki, Christopher J. Schmitt

Use of borehole neutron logs to estimate moisture content in the unsaturated zone of an alluvial aquifer Use of borehole neutron logs to estimate moisture content in the unsaturated zone of an alluvial aquifer

he neutron borehole logging tool was calibrated for the determination of moisture content in theunsaturated zone of an alluvial aquifer. A continuous core sample was collected to a depth of 15 ft from the unsaturated zone.Moisture content and other soil properties were determined by standard soil-laboratory techniques. The neutron logs profile was correlated to moisture content. The...
Authors
Vicente Quinones-Aponte, Ramon A. Carrasquillo
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