Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts
Robert W. Maclay, Larry F. Land
1988, Water Supply Paper 2336-A
The Edwards aquifer is a complexly faulted, carbonate aquifer lying within the Balcones fault zone of south-central Texas. The aquifer consists of thin- to massive-bedded limestone and dolomite, most of which is in the form of mudstones and wackestones. Well-developed secondary porosity has formed in association with former erosional surfaces...
The Spokane aquifer, Washington: its geologic origin and water-bearing and water-quality characteristics
Dee Molenaar
1988, Water Supply Paper 2265
The Spokane aquifer is an unconfined aquifer consisting of coarse sand, gravel, cobbles, and boulders deposited during several catastrophic glacial outburst floods--known as the Spokane Floods---of Pleistocene time. The aquifer is one of the most productive in the United States, and, as the only significant source of good-quality water supply...
Chemical quality, benthic organisms, and sedimentation in streams draining coal-mined lands in Raccoon Creek basin, Ohio, July 1984 through September 1986
K. S. Wilson
1988, Water-Resources Investigations Report 88-4022
The Ohio Department of Natural Resources, Division of Reclamation, plans widespread reclamation of abandoned coal mines in the Raccoon Creek basin in southeastern Ohio. Throughout Raccoon Creek basin, chemical, biological, and suspended-sediment data were collected from July 1984 through September 1986. Chemical and biological data collected at 17 sites indicate...
Simulation of ground-water flow in aquifers along the Susquehanna River in Columbia County, Pennsylvania
J.H. Williams, G.E. Senko
1988, Water-Resources Investigations Report 85-4185
A numerical model of groundwater flow was developed for a 10.3 sq mi area along the Susquehanna River in Columbia County, east central Pennsylvania. Groundwater in the model area primarily is in secondary openings in the carbonate--and clastic-rock aquifers and primary openings in the glacial-outwash aquifer that discontinuously overlies bedrock....
Distribution and variability of precipitation chemistry in the conterminous United States, January through December 1983
J. F. Rinella, T. L. Miller
1988, Open-File Report 87-558
Analysis of atmospheric precipitation samples, collected during the 1983 calendar year from 109 National Trends Network sites in the United States, are presented in this report. The sites were grouped into six geographical regions based on the chemical composition of the samples. Precipitation chemistry in these regions was influenced by...
Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife Refuge, Texas, 1986-87
Frank C. Wells, Gerry A. Jackson, William J. Rogers
1988, Water-Resources Investigations Report 87-4277
In 1986, the Department of the Interior conducted reconnaissance investigations in nine areas of the western conterminous United States to determine whether irrigation drainage has caused or has the potential to cause harmful effects to human health, fish, and wildlife, or may adversely affect the suitability of water for beneficial...
Selected hydrologic data for Pahvant Valley and adjacent areas, Millard County, Utah, 1987
Susan A. Thiros
1988, Open-File Report 88-195
This report contains hydrologic data collected in Pahvant Valley and adjacent areas from 1909 to 1987. The report area is mainly comprised of Pahvant Valley on the east and the southern part of the Sevier Desert on the west (plate 1). The area is in west-central Utah, within the Basin...
Geohydrology of the Bethpage-Hicksville-Levittown area, Long Island, New York
D. A. Smolensky, S. M. Feldman
1988, Water-Resources Investigations Report 88-4135
A study of ground-water levels and flow in east-central Nassau County, N.Y. , began in October 1985. The 11.4 sqare-mile area encompasses parts of Bethpage, Hicksville, Levittown, Plainview, Plainedge, and Farmingdale. Approximately 1,200 ft of unconsolidated Cretaceous deposits and 50 to 100 ft of Pleistocene deposits overlie bedrock throughout the...
Bathymetric map of the Bowers Basin and Aleutian Basin east of the U.S.-U.S.S.R. 1867 Convention Line, Bering Sea
R. K. Hall, Herman A. Karl, P.R. Carlson, A. K. Cooper, J.V. Gardner, R. E. Hunter, M. S. Marlow, A.J. Stevenson
1988, Open-File Report 89-548
No abstract available....
Effects of urbanization on storm-runoff volume and peak discharge of Valley Creek, eastern Chester County, Pennsylvania
R. A. Sloto
1988, Water-Resources Investigations Report 87-4196
Peak discharge and runoff volume were simulated for 21 storms in the Valley Creek basin using the U.S. Geological Survey Distributed Routing Rainfall-Runoff Model (DR3M). Storm peak discharges ranged from 301 to 900 cubic feet per second. Rainfall was measured at three recording rain gages in the basin. Observed and...
Hydrogeology and predevelopment flow in the Texas Gulf Coast aquifer systems
Paul D. Ryder
1988, Water-Resources Investigations Report 87-4248
A multilayered ground-water flow system exists in the Coastal Plain sediments of Texas. The Tertiary and Quaternary clastic deposits have an area! extent of 128,000 square miles onshore and in the Gulf of Mexico. Two distinct aquifer systems are recognized for the sediments, which range in thickness from a few...
Relation of trihalomethane-formation potential to water-quality and physical characteristics of small water-supply lakes, eastern Kansas
L. M. Pope, J. A. Arruda, C. H. Fromm
1988, Water-Resources Investigations Report 88-4161
The formation of carcinogenic trihalomethanes during the treatment of public surface water supplies has become a potentially serious problem. The U. S. Geological Survey, in cooperation with the Kansas Department of Health and Environment , investigated the potential for trihalomethane formation in water from 15 small, public water supply lakes...
Estimated Use of Water in the United States in 1985
Wayne B. Solley, Charles F. Merk, Robert R. Pierce
1988, Circular 1004
Water withdrawals in the United States during 1985 were estimated to average 399,000 million gallons per day (Mgal/d) of freshwater and saline water for offstream uses--10 percent less than the 1980 estimate. Average per-capita use for all offstream uses was 1,650 gallons per day (gal/d) of freshwater and saline water...
Location maps and list of U.S. Geological Survey reports on water resources in Alaska, 1950 to 1988
1988, Open-File Report 88-344
The objective of this compilation is to provide a listing of water-resources reports in Alaska by location. For the purposes of this report, Alaska has been divided into six geographic sections: Arctic Slope, West, Southwest, East-Central, Southcentral, and Southeast. In addition, reports are cited in the following categories: Statewide and...
Ethylene dibromide (EDB) trends in the upper Floridan Aquifer, Seminole County, Georgia, October 1981 to November 1987
J. B. McConnell
1988, Water-Resources Investigations Report 89-4034
Results of an investigation to assess the persistence and trends of ethylene dibromide (EDB) in the Upper Floridan aquifer, in Georgia indicate that in November 1987, EDB was present in the groundwater 4 years after it was last applied as a soil fumigant in the intensively farmed area of central...
Sediment loads, discharges, and yields in the East Branch Mahoning Creek basin, Clearfield and Jefferson Counties, Pennsylvania, June 1979 through September 1981
C. A. Loper, K. L. Wetzel
1988, Water-Resources Investigations Report 85-4213
Rainfall, streamflow, and sediment discharge data were collected from the East Branch Mahoning Creek basin from June 1979 through September 1981 to evaluate sediment discharges from an area in which erosion and sediment controls were being used on surface mined areas. Sediment yields from the basin averaged 144 tons/sq mi/year....
Hydrogeology, aquifer characteristics, and ground-water flow of the surficial aquifer system, Broward County, Florida
J.E. Fish
1988, Water-Resources Investigations Report 87-4034
The surficial aquifer system, in which an unconfined groundwater flow system exists, comprises the sediments from land surface to the intermediate confining unit (formerly called the Floridan aquiclude) in Broward County, Florida. These sediments have hydraulic conductivities that range more than seven orders of magnitude from about 0.001 ft/d to...
A digital simulation of the glacial-aquifer system in Sanborn and parts of Beadle, Miner, Hanson, Davison, and Jerauld counties, South Dakota
P.J. Emmons
1988, Water-Resources Investigations Report 87-4082
The drought in South Dakota from 1974-76 and the near drought conditions in 1980-81 have resulted in increased demands on the groundwater resources within many of the irrigated areas of the James River basin in eastern South Dakota. These increases in demand for irrigation water from the glacial aquifer system,...
Regionalization of mean annual suspended-sediment loads in streams, central, northwestern, and southwestern Colorado
J. G. Elliott
1988, Water-Resources Investigations Report 87-4193
Regression analysis was used to develop models for estimating mean annual suspended-sediment loads for streams in Colorado. Mean annual suspended-sediment loads at 81 selected streamflow-gaging stations in the central, northwestern, and southwestern regions of Colorado were expressed as functions of geomorphic and hydrologic variables. A multiple-regression model that included mean...
Geohydrology, water quality, and preliminary simulations of ground-water flow of the alluvial aquifer in the upper Black Squirrel Creek basin, El Paso County, Colorado
David R. Buckles, Kenneth R. Watts
1988, Water-Resources Investigations Report 88-4017
The upper Black Squirrel Creek basin in eastern El Paso County, Colorado, is underlain by an alluvial aquifer and four bedrock aquifers. The climate of the area is semiarid, and streamflow is irregular. The alluvial aquifer has supplied water to wells since the late 1800's when ranchers first pumped water...
The Blake Plateau Basin and Carolina Trough
William P. Dillon, Peter Popenoe
R. E. Sheridan, John A. Grow, editor(s)
1988, Book chapter, The Atlantic Continental Margin
Presently, the continental margin of the southeastern United States (Fig. 1) forms a zone of transition between the actively building, steep-fronted carbonate platform of the Bahamas and the typical eastern North American terrigenous clastic-dominated, drowned, shelf-slope-rise configuration. This region of the continental margin is underlain by two major sedimentary basins—the...
Seismicity in South Carolina
Kaye M. Shedlock
1988, Seismological Research Letters (59) 165-171
The largest historical earthquake in South Carolina, and in the southeastern US, occurred in the Coastal Plain province, probably northwest of Charleston, in 1886. Locations for aftershocks associated with this earthquake, estimated using intensities based on newspaper accounts, defined a northwest trending zone about 250 km long that was at...
Structure of the Blytheville arch in the New Madrid seismic zone
R. M. Hamilton, F. A. McKeown
1988, Seismological Research Letters (59) 117-121
Seismic-reflection profiles across part of the New Madrid seismic zone in northeastern Arkansas and southeastern Missouri show a faulted and structurally complex zone, originally known as Charlie’s ridge but herein renamed Blytheville arch, which is about 10 to 15 km wide and about 110 km long. Several exploratory drill holes...
Duck nest success in the prairie pothole region
Albert T. Klett, Terry L. Shaffer, Douglas H. Johnson
1988, Journal of Wildlife Management (52) 431-440
We estimated nest success of mallard (Anas platyrhynchos), gadwall (A. strepera), blue-winged teal (A. discors), northern shoveler (A. clypeata), and northern pintail (A. acuta) for 5 regions in North Dakota, South Dakota, and Minnesota, for 1-3 periods between 1966 and 1984, and for 8 habitat classes. We obtained composite estimates...
A new Lower Carboniferous tetrapod locality in Iowa
J.R. Bolt, R.M. McKay, B.J. Witzke, M.P. McAdams
1988, Nature (333) 768-770
The earliest tetrapods known are from two or three Upper Devonian1–3 and some 20 Lower Carboniferous localities in Scotland4 and North America5–8. Most sites yield few and fragmentary specimens; well-preserved and even partially articulated material is exceedingly rare. This report discusses a middle Lower Carboniferous site rich in amphibian and fish...
