Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Selected aquifer-test information for the coastal plain aquifers of South Carolina
Aquifer and well hydraulic characteristics were determined from more than 100 multiple-well and single-well aquifer tests in the Coastal Plain of South Carolina and tabulated by county. Multiple-well aquifer tests were analyzed by the This method for nonleaky aquifers and the Hantush-Jacob method for leaky aquifers. Single-well tests were analyzed by straight line solution techniques for drawdown
Authors
W. R. Aucott, Roy Newcome
Statistical summary and evaluation of the quality of surface water in the Colorado River basin, 1973-82 water years
Significant upward trends in dissolved-solids concentrations were detected with the Seasonal Kendall Test for trends at three stations in the upper basin during the study period. The increases exceeded 270 milligrams per liter per year at two stations and 165 milligrams per liter per year at the third station.
The composition of dissolved constituents in the Colorado River basin changes from predo
Authors
Freeman L. Andrews, Terry L. Schertz
Occurrence and availability of ground water in the Athens region, northeastern Georgia
A study was conducted to assess the occurrence and availability of groundwater in the crystalline rocks of the Piedmont area in northeastern Georgia and to determine whether groundwater is a viable alternative or supplemental source for industrial, public and private supplies. The area is underlain by a variety of metamorphic and igneous rocks. The quantity of water that a rock unit can supply to
Authors
D. B. Radtke, C.W. Cressler, H.A. Perlman, H.E. Blanchard, K.W. McFadden, Rebekah Brooks
Hydrologic and geologic analysis of two wells in Marion County, South Carolina
Two test wells were drilled in Marion County, South Carolina in 1982. Well MRN 77 (Marion 77) was drilled to a depth of 365 ft and was used as an observation well in the Black Creek aquifer and to supply water during drilling of the deeper well. MRN 78 (Marion 78) was drilled and cored through the entire thickness of Coastal Plain sediments into the underlying basement rock to a depth of 1,225 ft.
Authors
M.S. Reid, R.A. Renken, R. L. Wait, W. R. Aucott, R. W. Lee
Hydrologic and geologic analysis of a well in Dorchester County, South Carolina
No abstract available.
Authors
M.S. Reid, W. R. Aucott, R. W. Lee, R.A. Renken
History of ground-water pumpage and water-level decline in the Black Creek and upper Cape Fear aquifers of the central coastal plain of North Carolina
Historical ground-water withdrawals and a general water-level decline in the Black Creek and upper Cape Fear aquifers of the central Coastal Plain of North Carolina are documented. Total municipal and industrial pumpage from these aquifers has increased from approximately 120,000 gal/day (gpd) in 1910 to >21 million gpd in 1980. Major pumpage, > 10,000 gpd, began around 1900. Since that time, per
Authors
M.D. Winner, W.L. Lyke
Areal and temporal variations in the quality of surface water in hydrologic accounting unit 120301, Upper Trinity River basin, Texas
Hydrologic Accounting Unit 120301 is located in north-central Texas and includes that part of the Trinity River basin upstream from the National Stream Quality Accounting Network station 08062700, Trinity River at Trinidad, Texas. Normal annual precipitation ranges from about 28 inches in the western part of the basin to almost 40 inches in the eastern part. The population of the upper Trinity Riv
Authors
Frank C. Wells, Jack Rawson, Wanda J. Shelby
Technique for predicting ground-water discharge to surface coal mines and resulting changes in head
Changes in seepage flux and head (groundwater level) from groundwater drainage into a surface coal mine can be predicted by a technique that considers drainage from the unsaturated zone. The user applies site-specific data to precalculated head and seepage-flux profiles. Groundwater flow through hypothetical aquifer cross sections was simulated using the U.S. Geological Survey finite-difference mo
Authors
L.S. Weiss, D. L. Galloway, Audrey L. Ishii
The effects of urbanization on floods in the Austin metropolitan area, Texas
The effects of urbanization on flood peaks in streams in the Austin metropolitan area were studied in two separate analyses. In the first analysis, annual peak discharge records at 13 streamflow-gaging sites were used to compute a recorded flood frequency relation for each site. Rainfall and streamflow data for 10 to 20 storms for each of these sites were used to calibrate a rainfall-runoff model
Authors
Jack E. Veenhuis, David G. Gannett
Shallow ground-water resources in the Grand Strand of South Carolina
The shallow aquifers that underlie the Grand Strand of South Carolina average approximately 60 to 400 ft thick and have variable productivity with some wells producing little water and others producing several hundred gal/min. These aquifers are separated from the underlying Black Creek aquifer by a 200 ft to 300 ft thick clay confining unit. The shallow aquifers are recharged by local rainfall an
Authors
G. K. Speiran, W.F. Lichtler
Hydrogeologic sections of the Edwards Aquifer and its confining units in the San Antonio area, Texas
Twenty-seven geohydrology sections illustrate structural and stratigraphic relationships within the 180-mi-long Edwards aquifer. These sections were used to interpret the location of barriers within the Edwards aquifer. The sections are oriented generally south-southeast, which is approximately normal to both the east-northeast trending Edwards aquifer and the strike of the major faults of the Bal
Authors
Ted A. Small
Hydrology and water quality of the Edwards Aquifer associated with Barton Springs in the Austin area, Texas
Urban development over the Edwards aquifer in the Austin, Texas, area has caused concerns about the availability and quality of water in the aquifer. The study area, the Edwards aquifer that discharges to Barton Springs, includes parts of Travis and Hays Counties and extends from the city of Kyle to the Colorado River. A large part of the aquifer lies within the Austin metropolitan area one of the
Authors
Raymond M. Slade, Michael E. Dorsey, Sheree L. Stewart