South Florida Ecosystem Program web site
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 155-96
Introduction The South Florida Ecosystem Restoration Program is an intergovernmental effort, involving a number of agencies, to reestablish and maintain the ecosystem of south Florida. One element of the restoration effort is the development of a firm scientific basis for resource decision making. The U.S. Geological Survey (USGS), one of...
Sampling design for assessing water quality of the Red River of the North basin, Minnesota, North Dakota, and South Dakota, 1993-1995
D. L. Lorenz, J.D. Stoner
1996, Water-Resources Investigations Report 96-4129
This map report describes the sampling design for a comprehensive regional assessment of water quality in the Red River of the North Basin, a study unit under the U.S. Geological Survey’s National Water-Quality Assessment Program. The sampling design was developed to address questions about the presence, distribution, and loads of...
Digital geologic map of Lawton quadrangle, southwestern Oklahoma
Joel R. Cederstrand
1996, Open-File Report 96-376
This data set consists of digital data and accompanying documentation for the surficial geology of the 1:250,000-scale Lawton quadrangle, Oklahoma. The original data are from the Geologic Map, sheet 1 of 4, included in the Oklahoma Geological Survey publication, 'Reconnaissance of the water resources of the Lawton quadrangle, southwestern Oklahoma',...
Occurrence of selected contaminants in water, fish tissue, and streambed sediments in central Nebraska, 1992-95
Steven A. Frenzel
1996, Open-File Report 96-223
Surface and ground water in Nebraska may contain contaminants resulting from human activities. For purposes of this publication, a contaminant is any element or compound whose presence may affect the water's suitability for certain uses. For example, herbicide concentrations may exceeed the U.S. Environmental Protection Agency's (USEPA) Health Advisory Levels...
South Florida High-accuracy elevation data collection project
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 162-96
BackgroundThe major issues facing ecosystem restoration and management in south Florida are centered on the availability and distribution of clean, fresh water. Surface water flow modeling studies are an important aspect of the scientific information needs of the ecosystem restoration initiative. Hydrologic models provide much needed predictive capabilities for evaluating...
Water flows and nutrient loads to the southwest coast of Florida—A study
Victor A. Levesque
1996, Fact Sheet 179-96
BackgroundThe embayments and estuaries of Florida's southwest coast are an integral part of the south Florida ecosystem. Nutrients and other constituents are transported to these coastal waters by surface water and ground-water flow from the Everglades National Park (ENP) and the Big Cypress Preserve and by longshore and offshore tidal...
January 1996 floods deliver large loads of nutrients and sediment to the Chesapeake Bay
Linda D. Zynjuk, Brenda Feit Majedi
1996, Fact Sheet 140-96
The Blizzard of 1996 struck the Mid-Atlantic region in January, depositing a record amount of snowfall. Within two weeks of the paralyzing blizzard, warm and extremely humid air entered the region, followed by a major rainstorm. The combination of warm, humid air and heavy rainfall melted the snow at an unprecedented rate....
U. S. Geological Survey programs in Michigan
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 022-96
For more than 100 years, the United States Geological Survey (USGS) has provided earth-science information on which managers, scientists, and other interested citizens base decisions regarding Michigan’s natural resources and natural hazards. The non-regulatory and scientific nature of the USGS work ensures that our products are technically sound, unbiased, and...
Phytoplankton bloom dynamics in coastal ecosystems: A review with some general lessons from sustained investigation of San Francisco Bay, California
James E. Cloern
1996, Reviews of Geophysics (34) 127-168
Phytoplankton blooms are prominent features of biological variability in shallow coastal ecosystems such as estuaries, lagoons, bays, and tidal rivers. Long-term observation and research in San Francisco Bay illustrates some patterns of phytoplankton spatial and temporal variability and the underlying mechanisms of this variability. Blooms are events of rapid production...
A watershed-scale approach to tracing metal contamination in the environment
Stanley E Church
1996, Conference Paper
IntroductionPublic policy during the 1800's encouraged mining in the western United States. Mining on Federal lands played an important role in the growing economy creating national wealth from our abundant and diverse mineral resource base. The common industrial practice from the early days of mining through about 1970 in the...
Water-surface profile and flood boundaries for the computed 100-year flood, Big Muddy Creek, Fort Peck Indian Reservation and adjacent area, Montana
R. J. Omang
1996, Water-Resources Investigations Report 95-4291
Hydrologic and hydraulic evaluations of Big Muddy Creek were made to determine the magnitude of the 100-year flood and the extent of flooding that would occur as the result of this flood. The magnitude of the 100-year flood was determined to range from 13,600 to 20,400 ft3/s, depending on location....
Progress report on daily flow-routing simulation for the Carson River, California and Nevada
G. W. Hess
1996, Open-File Report 96-211
A physically based flow-routing model using Hydrological Simulation Program-FORTRAN (HSPF) was constructed for modeling streamflow in the Carson River at daily time intervals as part of the Truckee-Carson Program of the U.S. Geological Survey (USGS). Daily streamflow data for water years 1978-92 for the mainstem river, tributaries, and irrigation ditches...
Carbonate deposition, Pyramid Lake subbasin, Nevada: 3. The use of 87Sr values in carbonate deposits (tufas) to determine the hydrologic state of paleolake systems
L. Benson, Z. Peterman
1996, Palaeogeography, Palaeoclimatology, Palaeoecology (119) 201-213
Sierran rivers that discharge to the Lahontan basin have much lower (∼4.5‰) δ87Sr values than the Humboldt River which drains northeastern Nevada. The δ87Sr values of tufas deposited during the last lake cycle were used to determine when Humboldt derived Sr entered the Pyramid Lake subbasin. Prior to ∼15,000 yr B.P., the...
Selected ground-water data for Yucca Mountain region, southern Nevada and eastern California, through December 1994
C.L. Westenburg, R.J. La Camera
1996, Open-File Report 96-205
The U.S. Geological Survey, in support of the U.S. Department of Energy, Yucca Mountain Site Characterization Project, collects, compiles, and summarizes hydrologic data in the Yucca Mountain region. The data are collected to allow assessments of ground-water resources during studies to determine the potential suitability of Yucca Mountain for storing...
National water summary on wetland resources
1996, Water Supply Paper 2425
This National Water Summary on Wetland Resources documents wetland resources in the United States. It presents an overview of the status of knowledge of wetlands at the present time-what they are, where they are found, why they are important, and the controversies surrounding them, with an emphasis on their hydrology....
US Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993
D.W. Morganwalp, D. A. Aronson
1996, Water-Resources Investigations Report 94-4015
No abstract available....
Hydrologic data for Carson and Antelope Valleys, Douglas County, Nevada, and Alpine and Mono Counties, California, 1981-94
K.A. Mello
1996, Open-File Report 96-464
Water-quality assessment of the Trinity River Basin, Texas - Nutrients in two coastal prairie streams draining agricultural areas, 1994-95
Larry F. Land
1996, Open-File Report 96-558
In 1991, the U.S. Geological Survey (USGS) began nationwide implementation of the National Water-Quality Assessment (NAWQA) Program. Long-term goals of NAWQA are to describe the status of and trends in the quality of a large, representative part of the Nation?s surface- and ground-water resources and to provide a sound, scientific...
Selected hydrogeologic data from the Cedar Rapids Area, Benton and Linn counties, Iowa, October 1992 through March 1996
D.J. Schnoebelen, P.M. Schulmeyer
1996, Open-File Report 96-471
The city of Cedar Rapids, Iowa, obtains its water supply from shallow wells screened in the alluvial aquifer along the Cedar River. A cooperative study between the city of Cedar Rapids, Iowa, and the U.S. Geological Survey was started in March 1992 to assess the water quality and water quantity...
U.S. Geological Survey programs in Texas
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 043-96
The U.S. Geological Survey (USGS) is the Federal Government's primary source of data on the quantity and quality of the Nation's water resources, its principal civilian map making agency, and its primary provider of information on natural hazards and mineral, energy, and biological resources. The USGS makes unbiased scientific information...
Geohydrology of stratified drift and streamflow in the Deerfield River basin, northwestern Massachusetts
P.J. Friesz
1996, Water-Resources Investigations Report 96-4115
This report presents the results of a study of the geohydrology of stratified drift and streamflow in the Deerfield River Basin, northwestern Massachusetts. Detailed hydrologic information is needed to plan for the optimal use of ground-water and surface-water resources and for development of new drinking-water supplies in the basin. Sources...
Causes of variations in water quality and aquatic ecology in rivers of the Upper Mississippi River Basin, Minnesota and Wisconsin
James R. Stark
1996, Fact Sheet 249-96
Physical and aquatic biological conditions differ among the Mississippi River and its major tributaries (the St. Croix and Minnesota Rivers) in Minnesota and Wisconsin. The quality of surface water and the ecological condition of rivers affect the ways in which we use them. The St. Croix River is used for...
A three-dimensional method-of-characteristics solute-transport model (MOC3D)
Leonard F. Konikow, D.J. Goode, G.Z. Hornberger
1996, Water-Resources Investigations Report 96-4267
This report presents a model, MOC3D, that simulates three-dimensional solute transport in flowing ground water. The model computes changes in concentration of a single dissolved chemical constituent over time that are caused by advective transport, hydrodynamic dispersion (including both mechanical dispersion and diffusion), mixing (or dilution) from fluid sources, and...
Analysis of regional aquifers in the central Midwest of the United States in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Summary
Donald G. Jorgensen, J. O. Helgesen, D. C. Signor, R. B. Leonard, J. L. Imes, S. C. Christenson
1996, Professional Paper 1414-A
Large quantities of ground water are available for use from three regional aquifer systems in the central Midwest of the United States. Parts of the lowermost aquifer contain nearly immobile brine and may be hydrologically suitable for material storage or waste disposal. Results of numerical modeling and geochemical analyses confirm...
Geochemistry and isotope hydrology of representative aquifers in the Great Basin region of Nevada, Utah, and adjacent states
J. M. Thomas, A. H. Welch, M. D. Dettinger
1996, Professional Paper 1409-C
This report briefly describes the general quality and chemical character of the ground water, discusses in detail the geochemical and hydrologic processes that produce the chemical and isotopic compositions of water in the two principal types of aquifers (basin fill and carbonate rock), delineates flow systems in carbonate-rock aquifers of...
