Unified Interior Regions

Region 6: Arkansas-Rio Grande-Texas-Gulf

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Year Published: 2011

Pesticide occurrence in groundwater in areas of high-density row crop production in Alabama, 2009

High-density row crop production occurs in three areas of Alabama that are underlain by productive aquifers, northern Alabama, southeastern Alabama, and Baldwin County in southwestern Alabama. The U.S. Geological Survey collected five groundwater samples from each of these three areas during 2009 for analysis of selected pesticides. Results of...

Moreland, Richard S.
Pesticide occurrence in groundwater in areas of high-density row crop production in Alabama, 2009; 2011; OFR; 2011-1102; Moreland, Richard S.

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Year Published: 2011

Assessing the vulnerability of public-supply wells to contamination—Edwards aquifer near San Antonio, Texas

This fact sheet highlights findings from the vulnerability study of a public-supply well field in San Antonio, Texas. The well field consists of six production wells that tap the Edwards aquifer. Typically, one or two wells are pumped at a time, yielding an average total of 20-21 million gallons per day. Water samples were collected from public-...

Jagucki, Martha L.; Musgrove, MaryLynn; Lindgren, Richard J.; Fahlquist, Lynne; Eberts, Sandra M.
Assessing the vulnerability of public-supply wells to contamination—Edwards aquifer near San Antonio, Texas; 2011; FS; 2011-3142; Jagucki, Martha L.; Musgrove, MaryLynn ; Lindgren, Richard J.; Fahlquist, Lynne ; Eberts, Sandra M.

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Year Published: 2011

Historical streamflows of Double Mountain Fork of Brazos River and water-surface elevations of Lake Alan Henry, Garza County, Texas, water years 1962-2010

The U.S. Geological Survey (USGS), in cooperation with the City of Lubbock, Texas, operates two surface-water stations in Garza County, Tex.: USGS streamflow-gaging station 08079600 Double Mountain Fork Brazos River at Justiceburg, Tex., and 08079700 Lake Alan Henry Reservoir, a water-supply reservoir about 60 miles southeast of Lubbock, Tex., and...

Asquith, William H.; Vrabel, Joseph
Historical streamflows of Double Mountain Fork of Brazos River and water-surface elevations of Lake Alan Henry, Garza County, Texas, water years 1962-2010; 2011; FS; 2011-3147; Asquith, William H.; Vrabel, Joseph

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Year Published: 2011

Water-level surface in the Chicot equivalent aquifer system in southeastern Louisiana, 2009

The Chicot equivalent aquifer system is an important source of freshwater in southeastern Louisiana. In 2005, about 47 million gallons per day (Mgal/d) were withdrawn from the Chicot equivalent aquifer system in East Baton Rouge, East Feliciana, Livingston, Tangipahoa, St. Helena, St. Tammany, Washington, and West Feliciana Parishes. Concentrated...

Tomaszewski, Dan J.
Water-level surface in the Chicot equivalent aquifer system in southeastern Louisiana, 2009; 2011; SIM; 3173; Tomaszewski, Dan J.

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Year Published: 2011

U.S. Geological Survey archived data recovery in Texas, 2008-11

The 2008–11 data rescue and recovery efforts by the U.S. Geological Survey (USGS) Texas Water Science Center resulted in an efficient workflow process, database, and Web user interface for scientists and citizens to access archived environmental information with practical applications. Much of this information is unique and has never been...

Wehmeyer, Loren L.; Reece, Brian D.
U.S. Geological Survey archived data recovery in Texas, 2008-11; 2011; FS; 2011-3152; Wehmeyer, Loren L.; Reece, Brian D.

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Year Published: 2011

U.S. Geological Survey Community for Data Integration-NWIS Web Services Snapshot Tool for ArcGIS

U.S. Geological Survey (USGS) data resources are so vast that many scientists are unaware of data holdings that may be directly relevant to their research. Data are also difficult to access and large corporate databases, such as the National Water Information System (NWIS) that houses hydrologic data for the Nation, are challenging to use without...

Holl, Sally
U.S. Geological Survey Community for Data Integration-NWIS Web Services Snapshot Tool for ArcGIS; 2011; FS; 2011-3141; Holl, Sally

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Year Published: 2011

A new tool to assess groundwater resources in the Mississippi embayment

What is the Mississippi Embayment? The Mississippi embayment study area encompasses approximately 78,000 square miles in eight States and includes large parts of Arkansas, Louisiana, Mississippi, and Tennessee, and smaller areas of Alabama, Illinois, Kentucky, and Missouri (fig. 1). The Mississippi embayment is essentially a basin that slopes...

Clark, Brian R.; Freiwald, David A.
A new tool to assess groundwater resources in the Mississippi embayment; 2011; FS; 2011-3115; Clark, Brian R.; Freiwald, David A.

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Year Published: 2011

Groundwater availability of the Mississippi embayment

Groundwater is an important resource for agricultural and municipal uses in the Mississippi embayment. Arkansas ranks first in the Nation for rice and third for cotton production, with both crops dependent on groundwater as a major source of irrigation requirements. Multiple municipalities rely on the groundwater resources to provide water for...

Clark, Brian R.; Hart, Rheannon M.; Gurdak, Jason J.
Groundwater availability of the Mississippi embayment; 2011; PP; 1785; Clark, Brian R.; Hart, Rheannon M.; Gurdak, Jason J.

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Year Published: 2011

Simulation of the effects of groundwater withdrawals on water-level altitudes in the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas, 2007-37

A groundwater-flow model of the Mississippi embayment was used to evaluate changes in water-level altitudes before (scenario 1) and after (scenario 2) the addition of wells that simulate potential future pumping from the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas for the 30-year period from 2007 through 2037. Water-...

Clark, Brian R.; Westerman, Drew A.; Fugitt, D. Todd
Simulation of the effects of groundwater withdrawals on water-level altitudes in the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas, 2007-37; 2011; SIR; 2011-5215; Clark, Brian R.; Westerman, Drew A.; Fugitt, D. Todd

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Year Published: 2011

Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004

A study of the Transport of Anthropogenic and Natural Contaminants to public-supply wells (TANC study) was begun in 2001 as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. The study was designed to shed light on factors that affect the vulnerability of groundwater and, more specifically, water from public-...

Eberts, Sandra M.
Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004; 2011; PP; 1737-B; Eberts, Sandra M.

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Year Published: 2011

Simulations of groundwater flow and particle-tracking analysis in the zone of contribution to a public-supply well in San Antonio, Texas

In 2006, a public-supply well in San Antonio, Texas, was selected for intensive study to assess the vulnerability of public-supply wells in the Edwards aquifer to contamination by a variety of compounds. A local-scale, steady-state, three-dimensional numerical groundwater-flow model was developed and used in this study to evaluate the movement of...

Lindgren, Richard L.; Houston, Natalie A.; Musgrove, MaryLynn; Fahlquist, Lynne S.; Kauffman, Leon J.
Simulations of groundwater flow and particle-tracking analysis in the zone of contribution to a public-supply well in San Antonio, Texas; 2011; SIR; 2011-5149; Lindgren, Richard L.; Houston, Natalie A.; Musgrove, MaryLynn; Fahlquist, Lynne S.; Kauffman, Leon J.

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Year Published: 2011

Water-quality characteristics of urban storm runoff at selected sites in East Baton Rouge Parish, Louisiana, February 2006 through November 2009

Water samples were collected at three watersheds in East Baton Rouge Parish, Louisiana, during February 2006 through November 2009 for continued evaluation of urban storm runoff. The watersheds represented land uses characterized predominantly as established commercial, industrial, and residential. The following water-quality data are reported:...

Frederick, C. Paul
Water-quality characteristics of urban storm runoff at selected sites in East Baton Rouge Parish, Louisiana, February 2006 through November 2009; 2011; SIR; 2011-5199; Frederick, C. Paul