Serial/Series Title
States
207 Matching Results
Results open in a new window/tab.
Evaluation of Water Levels in Major Aquifers of the New Jersey Coastal Plain, 1978
From purpose and scope: The purpose of this report is to document and evaluate water levels and changes in water levels in the major artesian aquifers of the New Jersey Coastal Plain. Fundamental data for ground-water investigations and management are provided.
Date:
1983
Creator:
Walker, Richard L.
System:
The UNT Digital Library
Major Geochemical Processes Related to the Hydrology of the Madison Aquifer System and Associated Rocks in Parts of Montana, South Dakota, and Wyoming
From introduction: The overall purpose of this study were twofold: (1) To determine where greatest yielding wells at shallowest depths would produce water of suitable quality for municipal and industrial supplies; and (2) to determine regional effects of additional water development on the hydrologic system.
Date:
1983
Creator:
Busby, John F.; Lee, Roger W. & Hanshaw, Bruce B.
System:
The UNT Digital Library
Quality-Assurance Data for Routine Water Analysis in the Laboratories of the U.S. Geological Survey: 1981 Annual Report
Abstract: The U.S. Geological Survey maintains a quality-assurance program based on the analysis of reference samples for its two water-analysis laboratories located in Atlanta, Georgia, and Denver, Colorado. Reference samples containing inorganic constituents are prepared at the U.S. Geological Survey's Ocala, Florida office and disguised as routine samples, and sent daily to each laboratory through other U.S. Geological Survey offices. The results are permanently stored in the National Water Data Storage and Retrieval System (WATSTORE), the U.S. Geological Survey's data base for all water data. These data are analyzed statistically for precision and bias. The results of these statistical analyses are presented for data collected during the 1981 calendar year. In addition, one sample containing known concentrations chlorophyll a were analyzed in both laboratories, and these results also are presented.
Date:
1983
Creator:
Peart, Dale B. & Thomas, Nancy
System:
The UNT Digital Library
Potential Effects of Surface Coal Mining on the Hydrology of the Greenleaf-Miller Area, Ashland Coal Field, Southeastern Montana
From purpose and scope: The purpose of this study was to describe existing hydrologic systems, to obtain data on the water quality in the area, and to assess potential impacts of surface coal mining on local water resources. Specific objectives of the study were to: (1) Identify ground-water resources and use; (2) identify surface-water resources and runoff characteristics; (3) determine chemical quality of the ground-water resources; (4) identify probable impacts on existing water resources by mining operations; and (5) evaluate the potential for reclamation of local water resources.
Date:
February 1983
Creator:
Levings, Gary W.
System:
The UNT Digital Library
Water-Level Changes in the High Plains Regional Aquifer, Northwestern Oklahoma, Predevelopment to 1980
From general description: During 1978, the U.S. Geological Survey began a 5-year study of the High Plains regional aquifer system to provide hydrologic information for evaluation of the effects of long-term development of the aquifer and to develop computer models for prediction of aquifer response to alternative changes in ground-water management (Weeks, 1978). This report is one of a series presenting hydrologic information on the High plains aquifer in Oklahoma.
Date:
1983
Creator:
Havens, John S.
System:
The UNT Digital Library
Evaluation of the San Dieguito, San Elijo, and San Pasqual Hydrologic Subareas for Reclaimed Water Use, San Diego County, California
From purpose and scope: The purpose of this study was to update hydrologic data and refine understanding of the hydrologic system within the San Dieguito, San Elijo, and San Pasqual hydrologic subareas in San Diego County, Calif., and to evaluate the suitability of these areas for reclaimed water use.
Date:
August 1983
Creator:
Izbicki, John A.
System:
The UNT Digital Library
Effects of Volcanic Ash on the Benthic Environment of a Mountain Stream, Northern Idaho
Purpose and scope: The purpose of the study was to determine whether a thin layer of volcanic ash measurably affects aquatic environments. Study objectives were to: (1) Determine the amount of ash initially deposited in Big Creek basin and the amount remaining 1 year after the eruption, and (2) describe the impact of ash on water quality and benthic invertebrate communities.
Date:
January 1983
Creator:
Frenzel, S. A.
System:
The UNT Digital Library
Results of a Test Well in the Nanafalia Formation Near Melvin, Choctaw County, Alabama
Purpose and scope: The purpose of this report is to assemble and present hydrologic and geologic data collected by the U.S. Geological Survey during the drilling and testing of the test well. Hydrogeologic data collected are presented in tables, graphs, and diagrams. These data include lithologic, geophysical, and sample logs, and the results of aquifer tests and chemical analyses of ground water.
Date:
1983
Creator:
Davis, M. E.; Sparkes, A. K. & Peacock, B. S.
System:
The UNT Digital Library
Mean Annual Runoff and Peak Flow Estimates Based on Channel Geometry of Streams in Southeastern Montana
From introduction: The purpose of this report is to describe the channel-geometry technique and to present equations for estimating mean annual runoff and peak flows for ungaged streams in southeastern Montana.
Date:
April 1983
Creator:
Omang, R. J.; Parrett, Charles & Hull, J. A.
System:
The UNT Digital Library
Municipal Solid-Waste Disposal and Ground-Water Quality in a Coastal Environment, West-Central Florida
From introduction: This report explains how landfills can affect ground-water resources in a coastal environment. The report defines solid waste and briefly describes the four common methods for its disposal. The landfill method used in coastal west-central Florida is described in detail. It also presents hydrologic and geologic factors to be considered when locating landfills in a coastal environment and describes how to plan a water-quality monitoring program at a landfill site. Examples from other studies of the impact of landfills on ground water in coastal areas of west-central Florida are included.
Date:
1983
Creator:
Fernandez, Mario, Jr.
System:
The UNT Digital Library
Evaluation of the Effects of Lake Audubon on Ground- and Surface-Water Levels in the Lake Nettie Area, Eastern Mclean County, North Dakota
Purpose and scope: The purpose of this investigation is to describe changes in the ground-water levels and levels of surface-water bodies and to ascertain whether those changes can be ascribed to the raising of the level of Lake Audubon, or to the subsequent filling of the McClusky Canal, or both. The changes will be determined by analysis of water-level records obtained from observation wells.
Date:
1983
Creator:
Armstrong, C. A.
System:
The UNT Digital Library
Mudflow Hazards Along the Toutle and Cowlitz Rivers from a Hypothetical Failure of Spirit Lake Blockage
From introduction: This report identifies mudflow flood hazards associated with a breach of the Spirit Lake debris blockage starting at a lake elevation of 3,475 feet. The report presents the results of an analysis of what would occur downstream if the blockage were to fail (according to a particular scenario) and if the ensuing flood were then to incorporate sediment to form a mudflow. Observations since the May 18 eruption indicate that in the event of a large flood a mudflow is likely to result.
Date:
1983
Creator:
Swift, Charles H., III & Kresch, David L.
System:
The UNT Digital Library
Chloride Concentration in the Coastal Margin of the Flordian Aquifer, Southwest Florida
This report presents survey results designed to find chloride concentrations in the Floridan aquifer, the main source of freshwater for southwest Florida. It contains maps, graphs, and tables.
Date:
1983
Creator:
Causseaux, K. W. & Fretwell, J. D.
System:
The UNT Digital Library
Artificial Recharge in the Northern Part of Chino Ground-Water Basin, Upper Santa Ana Valley, California
Purpose and Scope: The purpose of this study was to evaluate the geohydrologic characteristics that influence sustained artificial recharge and to determine long-term infiltration rates in the northern part of Chino ground-water basin. Results of this study will help management to design and implement a recharge-recapture system in Chino Basin. Nine test holes were drilled, long-term infiltration tests were made, and drillers' logs and water-level data were evaluated to determine the probable effects of recharging the ground-water basin. The study was concentrated in the northern part of Chino Basin, where recharge is proposed.
Date:
June 1983
Creator:
Koehler, J. H.
System:
The UNT Digital Library
Water Quality of Somerville Lake South-Central Texas
Purpose of this report: This report summarizes the variations of selected water-quality constituents and properties for Somerville Lake based on water-quality records collected from August 1975 to August 1980. The report also contains information on the watershed environment in relation to the quality of water in the impoundment.
Date:
1983
Creator:
McPherson, Emma & Mendieta, H. B.
System:
The UNT Digital Library
Technique for Estimating Depth of Floods in Tennessee
From introduction: The purpose of this report is to present methods for estimating depths of various recurrence interval floods for unregulated streams in Tennessee. Relations between the size of the drainage basin and flood depths for four hydrologic areas of the state are defined.
Date:
1983
Creator:
Gamble, Charles R.
System:
The UNT Digital Library
General Hydrology and External Sources of Nutrients Affecting Pine Lake, King County, Washington
Objectives: This report presents the findings of a study that was designed to determine (1) the general hydrologic conditions in the immediate vicinity of the lake, and (2) the loadings of inorganic nitrogen and phosphorus from selected external sources that affect the lake.
Date:
1983
Creator:
Dion, N. P.; Sumioka, S. S. & Winter, T. C.
System:
The UNT Digital Library
Appraisal of the Interconnection Between the St. Johns River and the Surficial Aquifer, East-Central Duval County, Florida
From introduction: The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, conducted a 1-year study to determine the effects of proposed deepening of the navigation channel on the surficial aquifer. A specific objective was to determine the degree of interconnection that exists current between the limestone adjacent to the river and the limestone in the riverbed that is to be dredged.
Date:
1983
Creator:
Spechler, Rick M. & Stone, Roy B., Jr.
System:
The UNT Digital Library
Digital Model of the Bates Creek Alluvial Aquifer Near Casper, Wyoming
From abstract: "A digital model was used to simulate ground-water flow within the Bates Creek alluvial aquifer, southwest of Casper, Wyoming. Hydrologic data was collected during 1977 and 1978 were used to develop the flow model under steady-state and transient. Three scenarios for operating the stream-aquifer system were evaluated with the digital model." It contains maps, graphs, and tables.
Date:
1983
Creator:
Glover, Kent C.
System:
The UNT Digital Library
Precipitation-Runoff Modeling System: User's Manual
From introduction: This documentation is designed to provide the user with the basic philosophy and structure of PRMS, instructions for application of established models designed as cataloged procedures, and instructions for interaction with the PRMS library to permit user additions or modifications of model components. The components and subroutines described in this document are those available at the time of publication. However, the library is dynamic and will be enhanced and updated through time. This manual will be updated to reflect major additions and changes through manual inserts or republications.
Date:
1983
Creator:
Leavesley, G. H.; Lichty, R. W.; Troutman, B. M. & Saindon, L. G.
System:
The UNT Digital Library
Drainage Basins in Duval County, Florida
"Duval County in northeastern Florida and adjacent to the Atlantic Ocean contains approximately 840 square miles of which approximately 80 square miles are covered by water. The county is drained by three major rivers, the St. Johns, Nassau, and St. Marys. In addition, the coastal areas are drained by numerous small streams that empty into the Intracoastal Waterway or the Atlantic Ocean."
Date:
1983
Creator:
Stone, Roy B. & Largen, Joseph B.
System:
The UNT Digital Library
Selected Flow Characteristics of Florida Streams and Canals
Abstract: This report contains data and statistics on low-flow frequency for 254 stream-gagins stations on Florida streams and canals. The selected stations have 10 or more years of continuous record. A site description, a 10-year hydrograph, and a table of flow duration are presented for each station. A computed monthly 7-day, 10-year low flow is presented for stations when flow is not significantly altered by dams, increased or decreased significantly by diversion, or influence by tides.
Date:
1983
Creator:
Foose, Donald W.
System:
The UNT Digital Library
Trends in Polychlorinated Biphenyl Concentrations in Hudson River Water Five Years after Elimination of Point Sources
From purpose and scope: The main purpose of this monitoring was to gather several years of data on PCB concentrations preparatory to removal of contaminated sediments by dredging, which was originally scheduled for the early 1980's. Plans for dredging and disposal of sediments are currently being reevaluated. This report examines the contribution and transport of PCB's (polychlorinated biphenyls) from various reaches of the Hudson River and the changes in PCB concentration since 1977, when discharge was terminated.
Date:
1983
Creator:
Schroeder, Roy A. & Barnes, Charles R.
System:
The UNT Digital Library
Numerical Simulation of Ground-Water Flow in Lower Satus Creek Basin, Yakima Indian Reservation, Washington
From abstract: "A multilayer numerical model of steady-state ground-water flow in lower Satus Creek basin was constructed, calibrated using time-avenged data, and used to estimate the long-term effects of proposed irrigation-water management plans on ground-water levels in the area." It contains maps, graphs, and tables.
Date:
1983
Creator:
Prych, Edmund A.
System:
The UNT Digital Library