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Lower Mississippi-Gulf Water Science Center

Welcome to the USGS website that provides access to water resources information for the USGS Lower Mississippi-Gulf 5 State Water Science Center. Our center encompasses Alabama, Arkansas, Louisiana, Mississippi and Tennessee including all of the unique water resources contained within! If you are seeking Real-Time Water Data for the states we serve please click the button below. 

News

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Southeast Region (SER) Science Workshop: Identifying Science to Meet Administration Priorities and the Needs of Our Stakeholders

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USGS Deploying Storm-tide Sensors in Louisiana, Mississippi in Advance of Hurricane Ida

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Media Alert: Flights Above the Mississippi Alluvial Plain and Adjacent Areas to Continue Aquifer Mapping

Publications

Salinity and total dissolved solids measurements for natural waters: An overview and a new salinity method based on specific conductance and water type

The total concentration of dissolved constituents in water is routinely quantified by measurements of salinity or total dissolved solids (TDS). However, salinity and TDS are operationally defined by their analytical methods and are not equivalent for most waters. Furthermore, multiple methods are available to determine salinity and TDS, and these methods have inherent differences. TDS is defined a
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R. Blaine McCleskey, Charles A. Cravotta, Matthew P. Miller, Fred D. Tillman, Paul Stackelberg, Katherine J. Knierim, Daniel Wise

Attenuation of acid rock drainage by stimulating sulfur-reducing bacteria

Iron-sulfide minerals found in shale formations are stable under anaerobic conditions. However, in the presence of oxygen and water, acid-loving chemolithotrophic bacteria can transform the iron-sulfide minerals into a toxic solution of sulfuric acid and dissolved iron and minerals known as acid rock drainage (ARD). The objective of this study was to disrupt chemolithotrophic bacteria responsible
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Thomas D. Byl, Ronald Oniszczak, Diarra Fall, Petra Kim Byl, Michael Bradley

Public-supply water use in 2010 and projections of use in 2020 and 2030, Tennessee

Future water use was projected for public-water systems in Tennessee. Water-use information was compiled for Tennessee for 2010, and projections were made to 2020 and 2030. The water-use models were based on two primary datasets: baseline water-use information for 2010 for Tennessee and projected population in Tennessee.Population and water withdrawals in Tennessee are expected to increase through
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John A. Robinson, W. Scott Gain

Science

Mobile River Basin Study

The Mobile River Basin in Alabama, Georgia, Mississippi, and Tennessee is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources, and to provide a sound...
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Mobile River Basin Study

The Mobile River Basin in Alabama, Georgia, Mississippi, and Tennessee is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources, and to provide a sound...
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Chesapeake Bay Land Use and Land Cover data is now published in additional formats

The Chesapeake Bay Land Use and Land Cover (LULC) database was developed by the University of Vermont’s Spatial Analysis Laboratory in cooperation with Chesapeake Conservancy (CC) and U.S. Geological Survey (USGS). The high-resolution land data were developed as part of a 6-year Cooperative Agreement between Chesapeake Conservancy and the U.S. Environmental Protection Agency (EPA), and a separate...
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Chesapeake Bay Land Use and Land Cover data is now published in additional formats

The Chesapeake Bay Land Use and Land Cover (LULC) database was developed by the University of Vermont’s Spatial Analysis Laboratory in cooperation with Chesapeake Conservancy (CC) and U.S. Geological Survey (USGS). The high-resolution land data were developed as part of a 6-year Cooperative Agreement between Chesapeake Conservancy and the U.S. Environmental Protection Agency (EPA), and a separate...
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Water Use in Alabama, 2005

Water is one of the most important of Alabama's natural resources. Water is not only a vital component of human existence, it is critical to the overall quality of life. In order to protect and preserve this resource for future generations, we must have a baseline of information to make decisions. Decision and policy makers must know the answers to three fundamental questions: where is the water...
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Water Use in Alabama, 2005

Water is one of the most important of Alabama's natural resources. Water is not only a vital component of human existence, it is critical to the overall quality of life. In order to protect and preserve this resource for future generations, we must have a baseline of information to make decisions. Decision and policy makers must know the answers to three fundamental questions: where is the water...
Learn More