Evaporation from seven reservoirs in the Denver water-supply system, central Colorado
John F. Ficke, D. Briane Adams, T. W. Danielson
1977, Water-Resources Investigations Report 76-114
Seven reservoirs in central Colorado, operated by the Denver Board of Water Commissioners, were studied during 1967-73 to determine evaporation losses. These reservoirs, Elevenmile Canyon, Dillon, Gross, Antero, Cheesman, Williams Fork, and Ralston, are located on both sides of the Continental Divide. Methods for computing evaporation include energy-budget, mass-transfer, and...
Ice on rivers and lakes: a bibliographic essay
Eleanore R. Ficke, John F. Ficke
1977, Water-Resources Investigations Report 77-95
Ice on rivers and lakes has many important influences on design and construction of structures, operation of shipping, flow and circulation, water quality, and other factors related to the use of the water resources. Human interest in understanding these influences has led to many programs of data collection, research, and...
Maps showing ground-water conditions in the southern part of the Chinle area, Apache County, Arizona, 1976
G. W. Levings, C. D. Farrar
1977, Water-Resources Investigations Report 77-50
The southern part of the Chinle area includes about 2,100 sq mi in northeastern Arizona and is entirely in the Navajo Indian Reservation. The main source of water is the ground water in the several aquifers that are made up of one or more formations. The aquifers are stacked one...
Ground-water hydrology of the Lower Milliken-Sarco-Tulucay Creeks area, Napa County, California
Michael J. Johnson
1977, Water-Resources Investigations Report 77-82
The Sonoma Volcanics are the principal water-bearing materials in the lower Milliken-Sarco-Tulucay Creeks area, which occupies about 15 square miles (39 square kilometers) in and east of Napa, Calif. The distribution and composition of these volcanic units are highly variable and complex. Within the Sonoma Volcanics the tuffs constitute the...
Maps showing ground-water conditions in the southern part of the Black Mesa area, Navajo, Apache, and Coconino Counties, Arizona, 1976
Gary W. Levings, C. D. Farrar
1977, Water-Resources Investigations Report 77-41
The southern part of the Black Mesa area includes about 2,500 mi2 in northeastern Arizona and is entirely in the Navajo and Hopi Indian Reservations. The main source of water is the ground water in the several aquifers that are made up of one or more formations. The aquifers are...
Potentiometric surface of the Floridan aquifer in the Suwannee River Water Management District, north Florida, May 1976
D.W. Fisk, J.C. Rosenau
1977, Water-Resources Investigations Report 77-1
A map showing the potentiometric surface of the Floridan aquifer was prepared for that area north and west of Gainesville to near Tallahassee, Florida. Contoured at 10-foot (3.048-meter) intervals and at a scale of 1:500,000, the map illustrates the altitude to which water would rise in tightly cased wells that...
Simulation studies of flow and sediment transport using a mathematical model, Atchafalaya River Basin, Louisiana
Marshall E. Jennings, Larry F. Land
1977, Water-Resources Investigations Report 77-14
Simulation studies were made of flow and sediment transport for the Atchafalaya River basin, Louisiana using a mathematical model calibrated and supplied by the Hydrologic Engineering Center and the New Orleans District, U.S. Army Corps of Engineers. The study results are based on three, 50-year computer simulations for the following...
Artificial-recharge tests in Upper Black Squirrel Creek basin, Jimmy Camp Valley, and Fountain Valley, El Paso County, Colorado
P.J. Emmons
1977, Water-Resources Investigations Report 77-11
Artificial-recharge tests were conducted in the alluvium in upper Black Squirrel Creek basin, the alluvium in Jimmy Camp Valley, and in the alluvium overlying the Widefield aquifer which is located in an ancestral channel in Fountain Valley, Colo. Nine artificial-recharge pits with areas of approximately 9,200 square feet each were...
Sedimentation in Santa Margarita Lake, San Luis Obispo County, California
G. Douglas Glysson
1977, Water-Resources Investigations Report 77-56
The 1975 storage capacity of Santa Margarita Lake in San Luis Obispo County, Calif., was 41,400 acre-feet, a decrease of 3,400 acre-feet since 1941. Usable capacity decreased from 25,800 to 23,000 acre-feet. Long-term sediment yield for the Salinas River basin upstream from the lake was estimated at 1,150 tons per...
Distribution of nitrate in ground water, Redlands, California
Lawrence A. Eccles, Wesley L. Bradford
1977, Water-Resources Investigations Report 76-117
Wells producing water with nitrate as nitrogen concentrations in excess of 10 milligrams per liter are common throughout the Redlands, Calif., area. Nitrite as nitrogen concentrations in water from the saturated part of the aquifer ranged from much greater than 20 milligrams per liter at the water table to less...
The use of Galerkin finite-element methods to solve mass-transport equations
David B. Grove
1977, Water-Resources Investigations Report 77-49
The partial differential equation that describes the transport and reaction of chemical solutes in porous media was solved using the Galerkin finite-element technique. These finite elements were superimposed over finite-difference cells used to solve the flow equation. Both convection and flow due to hydraulic dispersion were considered. Linear and Hermite...
Evaluation of ground-water quality in the Santa Maria Valley, California
Jerry L. Hughes
1977, Water-Resources Investigations Report 76-128
The quality and quantity of recharge to the Santa Maria Valley groundwater basin from natural sources, point sources, and agriculture were evaluated. The results are expressed in terms of a hydrologic budget, a solute balance, and maps showing the distribution of selected chemical constituents in ground water. Point sources of...
Ground water in the Koehn Lake area, Kern County, California
J. H. Koehler
1977, Water-Resources Investigations Report 77-66
Hydrologic characteristics of the Koehn Lake area were investigated to determine the effects of external stresses on the system. Unconsolidated deposits are more than 900 feet thick in the central part of the basin. Cantil Valley fault, in the central part of the basin, acts as a barrier to the...
Preliminary flood-frequency relations for urban streams, Metropolitan Atlanta, Georgia
Harold G. Golden
1977, Water-Resources Investigations Report 77-57
A method is presented for estimating the magnitude and frequency of floods for urban streams in metropolitan Atlanta. The method is based on adjustments to the natural stream flood-frequency and rainfall-frequency characteristics of the local area as defined by urban flood studies in other areas.The effects of urbanization on flood-peak...
Availability of ground water in the lower Connecticut River basin, southwestern New Hampshire
J. E. Cotton
1977, Water-Resources Investigations Report 77-79
This map scale 1:125,000 presents a preliminary assessment of the availability of ground water in the lower Connecticut River basin in southwestern New Hampshire. It is a generalization of several hydrogeologic factors and provides a guideline for ground-water exploration useful in water- and land-use planning. It does not describe the...
Availability of ground water in the lower Merrimack River basin southern New Hampshire
J. E. Cotton
1977, Water-Resources Investigations Report 77-69
This map, scale 1:125,000, is a preliminary assessment of the availability of ground water in the lower Merrimack River basin in southern New Hampshire. It is a generalization of several hydrogeologic factors and provides a guideline for ground-water exploration, which is useful in water- and land-use planning. It does not...
Availability of ground water in the Piscataqua and other coastal river basins southeastern New Hampshire
J. E. Cotton
1977, Water-Resources Investigations Report 77-70
This map (scale 1:125,000) is a preliminary assessment of the availability of ground water in the Piscataqua and coastal river basins in New Hampshire. It is a generalization of several hydrogeologic factors and provides a guide for ground-water exploration, which is useful in water- and land-use planning. The best aquifers...
Digital model analysis of the principal artesian aquifer, Savannah, Georgia area
H. B. Counts, R.E. Krause
1977, Water-Resources Investigations Report 76-133
A digital model of the principal artesian aquifer has been developed for the Savannah, Georgia, area. The model simulates the response of the aquifer system to various hydrologic stresses. Model results of the water levels and water-level changes are shown on maps. Computations may be extended in time, indicating changes...
Water-level changes in wells along the west side of the Cedar Creek anticline, southeastern Montana
D.L. Coffin, T.E. Reed, S.D. Ayers
1977, Water-Resources Investigations Report 77-93
Water levels have been measured periodically in wells along the west side of the Cedar Creek anticline in southeastern Montana since 1962-64. The measurements show the response of the Fox Hills-Hell Creek aquifer of Late Cretaceous age to withdrawals for domestic, stock, and industrial uses. Water levels were as much...
Water quality in Rhode River at Smithsonian Institution Pier near Annapolis, Maryland, January 1974 through December 1975
Robert L. Cory
1977, Water-Resources Investigations Report 77-20
Maps showing ground-water conditions in the northern part of the Chinle area, Apache County, Arizona, 1976
G. W. Levings, C. D. Farrar
1977, Water-Resources Investigations Report 77-35
The northern part of the Chinle area includes about 3,000 sq mi in northeastern Arizona and is entirely in the Navajo Indian Reservation. The main source of water is from the several aquifers that are made up of one or more formations. The aquifers are stacked one on the other...
Maps showing ground-water conditions in the Monument Valley and northern part of the Black Mesa areas, Navajo, Apache, and Coconino counties, Arizona, 1976
G. W. Levings, C. D. Farrar
1977, Water-Resources Investigations Report 77-44
The Monument Valley and the northern part of the Black Mesa areas include about 2,700 sq mi in northeastern Arizona and are entirely in the Navajo and Hopi Indian Reservations. The main source of water is from the several aquifers that are made up of one or more formations. The...
Distribution and abundance of benthic organisms in the Sacramento River, California
Rodger F. Ferreira, D. Brady Green
1977, Water-Resources Investigations Report 77-60
General comparisons were made between benthic organism samples collected in 1960-61 and 1972-73 from five sites in the Sacramento River between Red Bluff and Knights Landing, Calif. The composition of benthic organisms from both collection periods was similar. The 1972-73 data showed variable patterns in monthly changes at each site...
Ground-water resources of the alluvial aquifers in northeastern Larimer County, Colorado
R. T. Hurr, P.A. Schneider
1977, Water-Resources Investigations Report 77-7
Ground water is a source of municipal, domestic, stock, and irrigation supply for most of northeastern Larimer County, Colo. A study of the alluvial aquifers in the northeastern part of the county was conducted to determine volume of water in storage, rate and location of ground-water withdrawals, and chemical quality...
Hydrologic evaluation of the Arikaree Formation near Lusk, Niobrara and Goshen counties, Wyoming
M. A. Crist
1977, Water-Resources Investigations Report 77-111
The Arikaree Formation of early Miocene age is an aquifer of large areal extent and is composed of very fine grained, poorly bedded, loosely to moderately cemented sandstone and interbedded silt, limestone, and many concretionary layers. The area studied is about 800 square miles in southern Niobrara and northern Goshen...
