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Phreeqe--A Computer Program for Geochemical Calculations
From abstract: This report "presents PHREEQE, a Fortran IV computer program designed to mode1 geochemical reactions and calculate pH, redox potential, and mass transfer as a function of reaction progress. "It contains tables and other figures.
Date:
August 1990
Creator:
Parkhurst, David L.; Thorstenson, Donald C. & Plummer, L. Niel
Object Type:
Report
System:
The UNT Digital Library
Water Resources of Clallam County, Washington: Phase 1 Report
From purpose and scope: The objectives of this study are (1) inventory the existing surface- and ground-water supplies of the county, and assess their quantity and quality; (2) determine the effects of irrigation on ground-water recharge in a northeastern part of the county (Sequim area); and (3) identify present and potential sources of contamination of the county's water resources and to determine if these present or potential contaminants will affect the quality of availability of water.
Date:
1986
Creator:
Drost, B. W.
Object Type:
Report
System:
The UNT Digital Library
Altitude and Generalized Configuration of the Top of the Floridian Aquifer, St. Johns County, Florida
From introduction: This map shows the approximate altitude and configuration of the top of the Floridian aquifer...This map was prepared from geologic, geophysical, and drillers' logs on file with the Florida Bureau of Geology, U.S. Geological Survey, St. Johns River Water Management District, and from logs in published reports.
Date:
1984
Creator:
Spechler, Rick M.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeologic and Water-Quality Characteristics of the Upper Carbonate Aquifer in Minnesota
Introduction: The U.S. Geological Survey began a study in 1980 of the quality of water in the 14 principal aquifers in Minnesota. The U.S. Environmental Protection Agency funded the study as part of the Underground Injection Control Program, which deals with disposal of liquid wastes beneath land surface. The initial report designated the 14 aquifers and provided general information about their geologic, hydrologic, and water-quality characteristics (Adolphson and others, 1981). This report, one in a series that describes individual aquifers in more detail, concerns the Upper Carbonate aquifer.
Date:
1984
Creator:
Ruhl, J. F. & Wolf, R. J.
Object Type:
Report
System:
The UNT Digital Library
Map Showing Outcrops of Basaltic Rocks of Early Quaternary and Tertiary Age, Basin and Range Province, Southern California
From introduction: This map report is one of a series of geologic and hydrologic maps covering all or parts of States within the Basin and Range province of the western United States. The map reports contain detailed information on subjects that characterize the geohydrology of the province, including the ground-water hydrology, ground-water quality, surface distribution of selected rock types, tectonic conditions, areal geophysics, Pleistocene lakes and marches, and mineral and energy resources This is part of the U.S. Geological Survey's program for geologic and hydrologic evaluation of the province to identify prospective regions for further study relative to isolation of high-level nuclear waste.
Date:
1984
Creator:
Roggensack, Kurt & Lopez, David A.
Object Type:
Report
System:
The UNT Digital Library
Map Showing Outcrops of Pre-Quaternary Basaltic Rocks, Basin and Range Province, Oregon
From introduction: This map report is one of a series of geologic and hydrologic maps covering all or parts of States within the Basin and Range province of the western United States. The map reports contain information on subjects that characterize the geohydrology of the province, including the ground-water hydrology, ground-water quality, surface distribution of selected rock types, tectonic conditions, areal geophysics, Pleistocene lakes and marshes, and mineral and energy resources.
Date:
1984
Creator:
Jenness, Jane E.; Sargent, K. A. & Lopez, David A.
Object Type:
Report
System:
The UNT Digital Library
Water Resources of the Lower Rio Grande De Manati Valley, Puerto Rico
From introduction: This report summarizes the results of the study in the Manati-Barceloneta area. The study includes an analysis of the availability of water from both surface and ground-water sources, and water quality. The major focus of the study was the alluvial valley of Rio Grande de Manati north of Highway 2. Areas outside of the valley were included as necessary only to the degree in which these influence the local hydrology.
Date:
1984
Creator:
Gómez-Gómez, Fernando
Object Type:
Report
System:
The UNT Digital Library
Fluvial Sedimentation in Kentucky
From abstract: This report, covering periods 1942-45 and 1951-81, documents the characteristics of sediment being transported from 79 drainage areas within the Commonwealth of Kentucky, and at eight stations on the main stem of the Ohio River.
Date:
December 1983
Creator:
Flint, Russell F.
Object Type:
Report
System:
The UNT Digital Library
A Method for Estimating Ground-Water Return Flow to the Lower Colorado River in the Yuma Area, Arizona and California
Purpose and scope: The purpose of this study was to develop a method for estimating the amount of subsurface return flow to the Colorado River in the Yuma area. This report presents a method that permits an approximate accounting of ground-water return flow from each side of the Colorado River in Yuma reach. The method presented in this report was developed specifically for application in the Yuma area. The validity of the assumptions inherent in the method was evaluated on the basis of the local hydrologic system. The applicability of the method to other hydrologic systems is not addressed in this report.
Date:
December 1983
Creator:
Loeltz, O. J. & Leake, S. A.
Object Type:
Report
System:
The UNT Digital Library
A Method for Estimating Ground-Water Return Flow to the Lower Colorado River in the Yuma Area, Arizona and California--Executive Summary
Purpose and scope: The purpose of this study was to develop a method for estimating the amount of subsurface return flow to the Colorado River in the Yuma area. This report presents a method that will permit an accounting of ground-water return flows from each side of the Colorado River in the Yuma reach. The estimates of return flow can be used by water-management agencies in determining return-flow credits for the States of Arizona and California.
Date:
December 1983
Creator:
Loeltz, O. J. & Leake, S. A.
Object Type:
Report
System:
The UNT Digital Library
Potential Effects of Surface Coal Mining on the Hydrology of the Bloomfield Coal Tract, Dawson County, Eastern 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.
Date:
December 1983
Creator:
Cannon, M. R.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance Study of Stream Sedimentation, Southern Guam
From purpose and scope: The purpose of this study is to determine the mean annual sediment yields from these three major river basins in the area, for use in future water supply development.
Date:
December 1983
Creator:
Shade, Patricia J.
Object Type:
Report
System:
The UNT Digital Library
Statistical Analysis and Evaluation of Water-Quality Data for Selected Streams in the Coal Area of East-Central Montana
From purpose and scope: The purpose of this report is to summarize and evaluate water-quality data acquired from streams within the study area from October 1975 through September 1981. This report updates data collected at 9 stations during the initial study and provides new data for 14 stations.
Date:
December 1983
Creator:
Lambing, John H.
Object Type:
Report
System:
The UNT Digital Library
Water Resources of the Fort Union Coal Region, East-Central Montana
From purpose and scope: The purpose of this report is to describe the existing hydrologic and water-quality conditions of the shallow ground-water system above the Bearpaw Shale and to describe the surface-water resources in the Fort Union coal region of east-central Montana. The objective of this study was to provide premining data that would be useful for water-resources planning.
Date:
December 1983
Creator:
Slagle, Steven E.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Waikele Well No. 2401-01, Oahu, Hawaii: Pumping Test, Well Logs and Water Quality
Introduction: A dependable water supply is required for Naval Magazine Lualualei, Waikele Branch. The water supply for Naval Magazine Lualualei, Waikele Branch, Oahu, Hawaii has been dependent on Oahu Sugar Co.'s water for many years. Because the supply of water from Oahu Sugar Co. is not always dependable, in March 1982, the Pacific Division of the Naval Facilities Engineering Command entered into a cooperative agreement with the U.S. Geological Survey to determine the productivity and water quality of an abandonment Navy well. The well, No. 2401-01, is located in Waikele Gulch near the confluence of Waikele and Kipapa Streams (fig. 1.0-1)
Date:
November 1983
Creator:
Eyre, Paul
Object Type:
Report
System:
The UNT Digital Library
Automatic Dilution Gaging of Rapidly Varying Flow
From introduction: The purpose of this report is to develop and evaluate a method to automate the constant-rate-injection technique, described by Cobb and Bailey, with sufficient accuracy and reliability to determine discharge in storm sewers under rapidly varying flow conditions.
Date:
October 1983
Creator:
Duerk, Marvin D.
Object Type:
Report
System:
The UNT Digital Library
Base Flow of Streams in the Outcrop Area of Southeastern Sand Aquifer: South Carolina, Georgia, Alabama, and Mississippi
From purpose and scope: The purpose of this study are to derive base flow estimates for representative parts of the Cretaceous and Tertiary clastic outcrop area as an aid in estimating recharge to the sand aquifers; to use base flow relations to estimate aquifer hydraulic parameters; and to relate the lithology of the aquifer to the streamflow duration curves.
Date:
October 1983
Creator:
Stricker, Virginia A.
Object Type:
Report
System:
The UNT Digital Library
Ground-Water Quality in the Western Snake River Basin, Swan Falls to Glenns Ferry, Idaho
From purposes and approach of study: The primary purposes of this study were to: (1) Define, on a reconnaissance level, current (1980) water-quality conditions in major aquifers (water-yielding rock formations) in the western Snake River basin, Swan Falls to Glenns Ferry; (2) summarize and interpret available geologic and hydrologic data to assist in understanding the natural and man-cause factors that affect present and future understanding the natural and man-caused factors that affect present and future water-quality conditions; and (3) establish a hydrologic data base on which future data can be compared to evaluate changes. A secondary purpose was to evaluate the possible effects percolation of thermal water applied for irrigation may have on the quality of local, less mineralized, nonthermal ground water.
Date:
October 1983
Creator:
Parliaman, D. J.
Object Type:
Report
System:
The UNT Digital Library
A Summary of Ground-Water Pumpage in the Central Valley, California, 1961-77
From purpose and scope: The purpose of this part of the Central Valley Aquifer Project is to gather and analyze all available information on the magnitude and distribution of ground-water pumpage in the Central Valley. These data will be used as input to a digital ground-water model, one of the products of the Central Valley Aquifer Project.
Date:
October 1983
Creator:
Diamond, Jonathan & Williamson, Alex K.
Object Type:
Report
System:
The UNT Digital Library
Estimating Highest Ground-Water Levels for Construction and Land Use Planning -- A Cape Cod, Massachusetts, Example
From introduction: This report presents an estimating technique that could be employed, with certain adaptations, almost anywhere that high ground-water levels in sedimentary deposits may present construction planning problems such as design and safe use of septic tank drain fields, and design of foundations, basements, and roadways.
Date:
September 1983
Creator:
Frimpter, Michael H. & Fisher, Martha N.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeology and Simulation of Water Flow in the Kootenai Aquifer of the Judith Basin, Central Montana
From purpose and scope: The purpose of this report is (1) to describe the flow system within the Kootenai Formation, which is the principal aquifer, and (2) to describe the interaction between the Kootenai and overlying and underlying Mesozoic aquifers.
Date:
September 1983
Creator:
Levings, Julianne F.
Object Type:
Report
System:
The UNT Digital Library
Injection of Treated Wastewater for Ground-Water Recharge in the Palo Alto Baylands, California, Hydraulic and Chemical Interactions--Preliminary Report
From Purpose and Scope: The objectives of this study are: (1) to define, both qualitatively and quantitatively, the clogging processes associated with injection, and (2) to determine the three-dimensional migration paths of injection water and native ground water.
Date:
September 1983
Creator:
Hamlin, Scott N.
Object Type:
Report
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.
Object Type:
Report
System:
The UNT Digital Library
Flood Estimates for Ungaged Streams in Glacier and Yellowstone National Parks, Montana
From introduction: The purpose of this report is to provide estimates of 100-year flood discharges at selected sites in Glacier and Yellowstone National Parks. Estimates for streams with contributing drainage areas outside Glacier National Park were determined using only the contributing drainage area in the park.
Date:
July 1983
Creator:
Omang, R. J.; Parrett, Charles & Hull, J. A.
Object Type:
Report
System:
The UNT Digital Library