Studies of geology and hydrology in the Basin and Range Province, Southwestern United States, for isolation of high-level radioactive waste - Basis of characterization and evaluation
M. S. Bedinger, K. A. Sargent, William H. Langer, Frank B. Sherman, J.E. Reed, B. T. Brady
1989, Professional Paper 1370-A
The geologic and hydrologic factors in selected regions of the Basin and Range province were examined to identify prospective areas for further study that may provide isolation of high-level radioactive waste from the accessible environment. The six regions selected for study were characterized with respect to the following guidelines: (1)...
Simulation analysis of the ground-water system in Mesozoic rocks in the Four Corners area, Utah, Colorado, Arizona, and New Mexico
B. E. Thomas
1989, Water-Resources Investigations Report 88-4086
The steady-state groundwater system in Mesozoic rocks in the Four Corners area, Utah, Colorado, Arizona, and New Mexico, was simulated with a finite-difference digital-computer model to improve the understanding of the system. The simulated area is 4 ,100 sq mi, and it includes three aquifers. The Entrada-Navajo aquifer includes the...
Effect of urban runoff on the quality of lakes in Eagan, Minnesota
L. H. Tornes
1989, Water-Resources Investigations Report 86-4331
Sixteen lakes in the city of Eagan, Minnesota, were sampled during 1982-83 to detect water-quality changes that might have occurred because of urbanization since a previous study conducted during 1972-78. Each of the lakes was sampled five times to determine pH, specific conductance, dissolved oxygen, water temperature, transparency, and concentration...
Hydrologic effects of pumpage from the Denver basin bedrock aquifers of northern El Paso County, Colorado
E. R. Banta
1989, Water-Resources Investigations Report 88-4033
The Denver groundwater basin underlies a 6,700 sq-mi area in eastern Colorado. To assess current conditions of the four bedrock aquifers in the basin, water levels, streamflow gain and loss, and other data were collected. Current aquifer conditions in the southern part of the basin and likely response to various...
Flow characteristics of the Clearwater River and tributaries from Clearbrook to Plummer, northwestern Minnesota
G. A. Payne
1989, Water-Resources Investigations Report 89-4045
During March through October 1986, 52,560 acre-feet of water passed the continuous-record stream gaging station on the Clearwater River near Clearbrook, Minnesota, 4.8 river miles upstream from the Red Lake Indian Reservation. Flow at the downstream boundary of the Reservation totaled 93,770 acre-feet. The increase in Clearwater River flow in...
Geohydrology of the alluvial and terrace deposits of the North Canadian River from Oklahoma City to Eufaula Lake, central Oklahoma
J.S. Havens
1989, Water-Resources Investigations Report 88-4234
This investigation was undertaken to describe the geohydrology of the alluvial and terrace deposits along the North Canadian River between Lake Overholser and Eufaula Lake, an area of about 1,835 square miles, and to determine the maximum annual yield of ground water. A 1982 water-level map of the alluvial and terrace...
Simulation of ground-water flow at Anchorage, Alaska, 1955-83
Leslie Patrick, T. P. Brabets, R. L. Glass
1989, Water-Resources Investigations Report 88-4139
The groundwater system at Anchorage, Alaska was analyzed by using a two-layer three-dimensional mathematical model. By use of existing data, both nonpumping and pumping steady-state conditions and transient conditions were simulated. Under steady-state conditions, calculated directions of groundwater flow were similar to observed flow patterns, and calculated stream discharges generally...
Application of a precipitation-runoff modeling system in the Bald Mountain area, Aroostook County, Maine
R. A. Fontaine
1989, Water-Resources Investigations Report 87-4221
Geology and ground-water resources of the Fort Pillow Sand in western Tennessee
W. S. Parks, J. K. Carmichael
1989, Water-Resources Investigations Report 89-4120
To Fort Pillow Sand of the Wilcox Group of Tertiary age underlies approximately 7,700 sq mi in western Tennessee. The formation consists primarily of very fine to very coarse sand that locally contains minor lenses or beds of clay or silt. The Fort Pillow Sand ranges from 0 to 350...
Simulation of streamflow in small drainage basins in the southern Yampa River basin, Colorado
R. S. Parker, J. M. Norris
1989, Water-Resources Investigations Report 88-4071
Coal mining operations in northwestern Colorado commonly are located in areas that have minimal available water-resource information. Drainage-basin models can be a method for extending water-resource information to include periods for which there are no records or to transfer the information to areas that have no streamflow-gaging stations. To evaluate...
Geochemistry of the Floridan aquifer system in Florida and in parts of Georgia, South Carolina, and Alabama
Craig L. Sprinkle
1989, Professional Paper 1403-I
The chemical quality of the ground water in the Floridan aquifer system is determined primarily by mineral-water interaction. However, some changes in water quality have been imposed by development, particularly near coastal pumping centers. A total of 601 chemical analyses, all from different wells, most completed in the upper part...
Evaluation of methodology for delineation of protection zones around public-supply wells in west-central Florida
John Vecchioli, J. D. Hunn, W. R. Aucott
1989, Water-Resources Investigations Report 88-4051
Public-supply wells in the west-central Florida area of Citrus, Hernando, Pasco, Hillsborough, and Pinellas Counties derive their supply solely from the Floridan aquifer system. In much of this area, the Floridan is at or near land surface and vulnerable to contamination. Recognizing this potential threat to the aquifer, the Florida...
Estimating soil matric potential in Owens Valley, California
Stephen K. Sorenson, Reuben F. Miller, Michael R. Welch, David P. Groeneveld, Farrel A. Branson
1989, Water Supply Paper 2370-C
Much of the floor of Owens Valley, California, is covered with alkaline scrub and alkaline meadow plant communities, whose existence is dependent partly on precipitation and partly on water infiltrated into the rooting zone from the shallow water table. The extent to which these plant communities are capable of adapting...
Procedure for evaluating observation-well networks in Wyoming, and application to northeastern Wyoming, 1986
J.C. Wallace, M. A. Crist
1989, Water-Resources Investigations Report 88-4215
A sequence of steps was developed for evaluating and modifying the existing, long-term, observation-well network in any part of Wyoming. The State was subdivided geographically into nine groundwater areas, including the northeastern Wyoming groundwater area, based on major structural features. Northeastern Wyoming was the first of the nine areas to...
Analysis of the effect of pumping on ground-water flow in the Springfield Plateau and Ozark aquifers near Springfield, Missouri
J. L. Imes
1989, Water-Resources Investigations Report 89-4079
Pumpage of water from the Ozark aquifer for public supply and industry use by the city of Springfield and surrounding communities in southwestern Missouri has significantly altered the potentiometric surface of the aquifer. Springfield is located on a regional groundwater divide that trends east and west across southern Missouri. Groundwater...
Effects of limestone quarrying and cement-plant operations on runoff and sediment yields in the Upper Permanente Creek basin, Santa Clara County, California
K.M. Nolan, B. R. Hill
1989, Water-Resources Investigations Report 89-4130
High sediment loads below headwater areas of the Permanente Creek drainage basin, Santa Clara County, California, have caused flood-control problems in downstream lowland areas. Measured sediment yields in Permanente Creek, which drains areas affected by limestone quarrying and cement-plant operations, were 14 times greater than yields from the West Fork...
Potential for saltwater intrusion into the Upper Floridan aquifer, Hernando and Manatee Counties, Florida
G.L. Mahon
1989, Water-Resources Investigations Report 88-4171
Pumpage from the Upper Floridan aquifer has caused a lowering of the potentiometric surface and has increased potential for saltwater intrusion into the aquifer in coastal areas of west-central Florida. Groundwater withdrawals are likely to increase because of expected population growth, especially in coastal areas. To increase the understanding of...
Modification of a method-of-characteristics solute-transport model to incorporate decay and equilibrium-controlled sorption or ion exchange
D.J. Goode, Leonard F. Konikow
1989, Water-Resources Investigations Report 89-4030
The U.S. Geological Survey computer model of two-dimensional solute transport and dispersion in ground water (Konikow and Bredehoeft, 1978) has been modified to incorporate the following types of chemical reactions: (1) first-order irreversible rate-reaction, such as radioactive decay; (2) reversible equilibrium-controlled sorption with linear, Freundlich, or Langmuir isotherms; and (3)...
Surface-water quality in the West Branch Susquehanna River basin, Pennsylvania: An appraisal of areal and temporal variability from 1962 to 1982 in hydrologic accounting unit 020502
R.A. Hainly, J.F. Truhlar, K. L. Wetzel
1989, Water-Resources Investigations Report 85-4283
The West Branch Susquehanna River basin has a drainage area of 6,955 square miles in north-central Pennsylvania and comprises Hydrologic Accounting Unit 020502. A National Stream Quality Accounting Network (NASQAN) waterquality data collection site, maintained by the U.S. Geological Survey, is located on the river near its mouth at Lewisburg,...
A numerical solution for the diffusion equation in hydrogeologic systems
A. L. Ishii, R. W. Healy, Robert G. Striegl
1989, Water-Resources Investigations Report 89-4027
The documentation of a computer code for the numerical solution of the linear diffusion equation in one or two dimensions in Cartesian or cylindrical coordinates is presented. Applications of the program include molecular diffusion, heat conduction, and fluid flow in confined systems. The flow media may be anisotropic and heterogeneous....
Measurement of reaeration coefficients for selected Florida streams
P. S. Hampson, J.E. Coffin
1989, Water-Resources Investigations Report 87-4020
A total of 29 separate reaeration coefficient determinations were performed on 27 subreaches of 12 selected Florida streams between October 1981 and May 1985. Measurements performed prior to June 1984 were made using the peak and area methods with ethylene and propane as the tracer gases. Later measurements utilized the...
Simulation of steady-state ground water and spring flow in the upper Floridan aquifer of coastal Citrus and Hernando Counties, Florida
D. K. Yobbi
1989, Water-Resources Investigations Report 88-4036
A digital groundwater flow model was developed to approximate steady-state predevelopment flow conditions in the Upper Floridan aquifer of coastal west-central Florida. The aquifer is the major source of water and natural spring flow in the area. The aquifer was simulated as a one-layer system with constant vertical recharge and...
Application of the precipitation-runoff modeling system to the Ah-Shi-Sle-Pah Wash watershed, San Juan County, New Mexico
H. R. Hejl Jr.
1989, Water-Resources Investigations Report 88-4140
The precipitation-runoff modeling system was applied to the 8.21 sq-mi drainage area of the Ah-shi-sle-pah Wash watershed in northwestern New Mexico. The calibration periods were May to September of 1981 and 1982, and the verification period was May to September 1983. Twelve storms were available for calibration and 8 storms...
Hydrology of the Oakley Fan Area, south-central Idaho
H.W. Young, G. D. Newton
1989, Water-Resources Investigations Report 88-4065
The Oakley Fan area is a broad, crescent-shaped lowland along the southern margin of the Snake River Plain in south-central Idaho. Intensive groundwater development for irrigation has resulted in rapid water-level declines and, as a consequence, designation by the State of four Critical Groundwater Areas. Principal aquifers are in limestone,...
Geohydrology of the Foothill ground-water basin near Santa Barbara, California
J. R. Freckleton
1989, Water-Resources Investigations Report 89-4017
Geohydrologic data presented in this report indicate that the East Subbasin of the Goleta groundwater basin and Storage Unit II of the Santa Barbara groundwater basin should be considered as a separate groundwater basin, which is referred to as the Foothill groundwater basin in this report. The 4.5 sq-mi Foothill...
