Download or read book Groundwater Data Assessment in the Southeastern U S 0 3 a Status Check of Alabama Mississippi and Louisiana written by Eliane Marielle Volk and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater contributes approximately 40 percent of freshwater usage in the conterminous US, and its contribution in one Southeastern state, Mississippi, is 75 percent. Groundwater also indirectly sustains surface water resources, and hence its actual contribution to freshwater usage is even larger than reported. The goal of this project is to develop a comprehensive GIS-based web database that will harness publicly available data from various state agencies and water utilities across Alabama, Mississippi, and Louisiana while addressing critical data gaps and differences. The information included in the database can then be used to develop science-based water management and policy decisions. The comprehensive GIS-based web database will provide opportunities for research investigations to utilize various data analysis applications for potable water resources and utilities information, as well as support effective water management. It is essential to develop a more holistic understanding of freshwater usage from both surface and groundwater resources in the Southeastern United States. Over a hundred studies have assessed specific research topics and sub-regions in the Southeastern US, such as saltwater intrusion and the Mississippi River Valley alluvial aquifer system; however, the idiosyncratic approach to most research investigations can limit how we understand groundwater. Integrating science and policy is essential for advanced research investigations and developing comprehensive state water management plans that will support water sustainability. Alabama, Mississippi, and Louisiana do not have comprehensive state water management plans, while all the states surrounding this region have comprehensive state water management plans in place. Understanding current water management and previous water disputes provides a strong background perspective on the water resources issues that can form in this region. The lack of source water monitoring severely impacts data-driven research efforts in these three states. The database can be used in support of future management developments to enhance water sustainability.
Download or read book Water Resources Data written by and published by . This book was released on 1982 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeology of the Southeastern Coastal Plain Aquifer system in Parts of Eastern Mississippi and Western Alabama written by Michael J. Mallory and published by . This book was released on 1993 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Prof. paper 1410-G.
Download or read book USGS Water Resources Data written by and published by . This book was released on 1984 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeology of the Southeastern Coastal Plain Aquifer System in Mississippi Alabama Georgia and South Carolina written by Robert A. Renken and published by . This book was released on 1996 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Reconnaissance Study to Relate Land Use and Ground water Quality in the Gulf Coastal Plain of Louisiana and Mississippi written by Donald J. Strickland and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brackish Groundwater in the United States written by Jennifer S. Stanton and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeologic Terranes and Potential Yield of Water to Wells in the Valley and Ridge Physiographic Province in the Eastern and Southeastern United States written by E. F. Hollyday and published by . This book was released on 1997 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground water Quality Data from the Northern Mississippi Embayment Arkansas Missouri Kentucky Tennessee and Mississippi written by and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Availability of the Mississippi Embayment written by Brian R. Clark and published by . This book was released on 2011 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 industrial and public use, which includes the city of Memphis, Tennessee. The demand for the groundwater resource has resulted in groundwater availability issues in the Mississippi embayment including: (1) declining groundwater levels of 50 feet or more in the Mississippi River Valley alluvial aquifer in parts of eastern Arkansas from agricultural pumping, (2) declining groundwater levels of over 360 feet over the last 90 years in the confined middle Claiborne aquifer in southern Arkansas and northern Louisiana from municipal pumping, and (3) litigation between the State of Mississippi and a Memphis water utility over water rights in the middle Claiborne aquifer. To provide information to stakeholders addressing the groundwater-availability issues, the U.S. Geological Survey Groundwater Resources Program supported a detailed assessment of groundwater availability through the Mississippi Embayment Regional Aquifer Study (MERAS). This assessment included (1) an evaluation of how these resources have changed over time through the use of groundwater budgets, (2) development of a numerical modeling tool to assess system responses to stresses from future human uses and climate trends, and (3) application of statistical tools to evaluate the importance of individual observations within a groundwater-monitoring network. An estimated 12 million acre-feet per year (11 billion gallons per day) of groundwater was pumped in 2005 from aquifers in the Mississippi embayment. Irrigation constitutes the largest groundwater use, accounting for approximately 10 million acre-feet per year (9 billion gallons per day) in 2000 from the Mississippi River Valley alluvial aquifer in Arkansas, Louisiana, Mississippi, and Missouri, and to a lesser extent in Illinois, Kentucky, and Tennessee. Predevelopment groundwater flow is represented in the MERAS model as a steady-state stress period, assumed to be prior to 1870. The simulated groundwater-flow budget indicates the largest predevelopment inflow to the system is net recharge to the alluvial aquifer. This inflow is balanced by outflow to gaining streams. Overall, water enters as net recharge to the alluvial aquifer or through outcrop areas of the various hydrogeologic units. Away from the outcrop areas, groundwater flow in the deeper formations is primarily upward into overlying units, ultimately discharging to streams through the alluvial aquifer. Total net recharge and discharge (sum of inflows or outflows) for the model ranged from about 0.66 million acre-feet per year during predevelopment to 20.16 million acre-feet per year by the end of the simulation (final simulated irrigation period in summer of 2006). This change in the model budget reflects increases in withdrawals compared to predevelopment conditions. Cumulative storage within aquifers simulated in the MERAS model indicates overall depletion of 140 million acre-feet (equivalent to 2.8 feet of water covering the entire study area). Postdevelopment inflow to the system is still through net recharge to the alluvial aquifer and the outcrop areas of the several hydrogeologic units, however, the flow between each unit is no longer upward to the alluvial aquifer. Groundwater flow during the summer of 2006 was primarily downward to offset demand from pumping. Early in the model simulation (1870-1920s), the primary components of the water budget were simulated as outflow from stream leakage and inflow from net recharge. As pumpage increased through time, water that would otherwise flow to streams reversed, and net stream leakage became an inflow to the system. The largest reversals began in the mid-1980s, but indications of the reversal began in the early 1960s with a trend in loss of streamflow leakage coupled with the first consistent inflow from storage. While groundwater pumped out of the alluvial aquifer was derived primarily from storage, pumpage out of the middle Claiborne aquifer was derived primarily from other aquifers (up to 15 percent from the alluvial aquifer), followed by flow from storage and net recharge. The potential consequences of climate change have been identified as a major concern facing the sustainability of the Nation's groundwater resources. To address this concern, two climate simulations were developed through the use of the MERAS model by extending the simulation period by 30 years to the year 2038 using extrapolated precipitation based on frequency analysis of historic climate cycles. There is little difference between the dry and wet scenarios in terms of percent water-level change. Both scenarios resulted in 14.6 to 13.9 percent of the area containing more than 100 feet of decline, 14.5 to 13.8 percent containing between 75 and 100 feet of decline, and 15.8 to 15.7 percent containing 51 to 75 feet of decline in the alluvial aquifer. The middle Claiborne aquifer water-level changes also were similar between the two scenarios. These scenarios indicate that even with a 25-percent increase in precipitation from that of the dry scenario, there is little difference in the resultant water levels. This is in large part because of the magnitude of differences between changes in net recharge and changes in pumping. When compared to the volume of water pumped out of the system, the effect of this change in net recharge is negligible. The groundwater-level monitoring network used to construct the 2007 middle Claiborne aquifer potentiometric surface was used as an example case to demonstrate statistical technique and to evaluate the importance of individual groundwater-level observations. To calculate the importance of each water-level observation to a prediction, predictions were specified as water-level altitudes near the end of the dry scenario simulation. These predictions were located near the center of cones of depression. Many of the observations that have a high importance are in close proximity to stressed areas of the aquifer.
Download or read book Assessment and Compilation of Groundwater Quality Data for Mississippi written by Dennis D. Truax and published by . This book was released on 1986 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater in Alluvium of the Lower Mississippi Valley upper and Central Areas written by E. L. Krinitzsky and published by . This book was released on 1964 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shallow Ground water Quality in Agricultural Areas of Northern Alabama and Middle Tennessee 2000 2001 written by James A. Kingsbury and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shallow Ground water Quality in Agricultural Areas of Northern Alabama and Middle Tennessee 2000 2001 written by and published by DIANE Publishing. This book was released on with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground water Resources of the Natchez Area Mississippi written by Ernest H. Boswell and published by . This book was released on 1985 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of Water Levels and Selected Water quality Conditions in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas 2000 written by Tony P. Schrader and published by . This book was released on 2001 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeology and Preliminary Assessment of the Potential for Contamination of the Memphis Aquifer in the Memphis Area Tennessee written by William Scott Parks and published by . This book was released on 1991 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
