Mineral resources and resource potential map of the Pyramid Peak Roadless Area, Riverside County, California
J.P. Calzia
1988, Miscellaneous Field Studies Map 1999
The Pyramid Peak Roadless Area is underlain by mid-Cretaceous plutonic rocks (granite, granodiorite, and tonalite) that intrude metasedimentary rocks of the Desert Divide Group. The granodiorite grades eastward into strongly deformed mylonitic rocks mapped as part of the Santa Rosa mylonite zone. Metasedimentary rocks, orthogneiss, and anatexites of the Palm...
Habitat Suitability Index Models: American eider (breeding)
A. K. Blumton, Ray B. Owen Jr., William B. Krohn
1988, FWS/OBS 82/10.149
INTRODUCTION The common eider (Somateria mollissima) consists of five subspecies; four are found in North America (Palmer 1976). Six management populations of common eiders have recently been defined in eastern Canada and the United States (Reed and Erskine 1986). The American edier (S. mollissima dresseri), of which three populations are recognized...
Habitat Suitability Index Models: Black-bellied whistling-duck (breeding)
Paul M. McKenzie, Phillip J. Zwank
1988, FWS/OBS 82/10.150
A review and synthesis of existing information were used to develop a model for evaluating the quality of habitat for breeding black-bellied whistling-ducks. The model is scaled to produce an index between 0.0 (unsuitable habitat) to 1.0 (optimal habitat). Habitat suitability index models are designed to be used with Habitat...
Methods to determine transit losses for return flows of transmountain water in Fountain Creek between Colorado Springs and the Arkansas River, Colorado
Gerhard Kuhn
1988, Water-Resources Investigations Report 87-4119
Methods were developed by which transit losses could be determined for transmountain return flows in Fountain Creek between Colorado Springs, Colorado, and its confluence with the Arkansas River. The study reach is a complex hydrologic system wherein a substantially variable streamflow interacts with an alluvial aquifer. The study approach included:...
Application of the U.S. Geological Survey's precipitation-runoff modeling system to Williams Draw and Bush Draw basins, Jackson County, Colorado
Gerhard Kuhn
1988, Water-Resources Investigations Report 88-4013
The U.S. Geological Survey 's precipitation-runoff modeling system was calibrated for this study by using daily streamflow data for April through September, 1980 and 1981, from the Williams Draw basin in Jackson County, Colorado. The calibrated model then was verified by using daily streamflow data for April through September, 1982...
A digital simulation of the glacial-aquifer system in Sanborn and parts of Beadle, Miner, Hanson, Davison, and Jerauld counties, South Dakota
P.J. Emmons
1988, Water-Resources Investigations Report 87-4082
The drought in South Dakota from 1974-76 and the near drought conditions in 1980-81 have resulted in increased demands on the groundwater resources within many of the irrigated areas of the James River basin in eastern South Dakota. These increases in demand for irrigation water from the glacial aquifer system,...
Surface-water hydrology of Hay Creek watershed, Montana, and West Branch Antelope Creek watershed, North Dakota
Douglas G. Emerson
1988, Water-Resources Investigations Report 88-4038
Hydrologric data were used to determine the premining surface-water conditions in two small basins in the Fort Union coal region of Montana and North Dakota. The two streams. Hay Creek and West Branch Antelope Creek, are ephemeral. Most of the volume and peak discharges are due to snowmelt runoff. Little...
The Pintail coal bed and barrier bar G: A model for coal of barrier bar-lagoon origin, Upper Cretaceous Almond Formation, Rock Springs coal field, Wyoming
H. W. Roehler
1988, Professional Paper 1398
No abstract available....
Simulation of the regional geohydrology of the Tesuque aquifer system near Santa Fe, New Mexico
D. P. McAda, Maryann Wasiolek
1988, Water-Resources Investigations Report 87-4056
Declining groundwater levels resulting from groundwater withdrawals in the Santa Fe, New Mexico, area have caused concern about the future availability of water in the Tesuque aquifer system. This report describes the geohydrology of the Tesuque aquifer system in the Santa Fe area and presents a three-dimensional regional groundwater flow...
Regionalization of mean annual suspended-sediment loads in streams, central, northwestern, and southwestern Colorado
J. G. Elliott
1988, Water-Resources Investigations Report 87-4193
Regression analysis was used to develop models for estimating mean annual suspended-sediment loads for streams in Colorado. Mean annual suspended-sediment loads at 81 selected streamflow-gaging stations in the central, northwestern, and southwestern regions of Colorado were expressed as functions of geomorphic and hydrologic variables. A multiple-regression model that included mean...
Recharge to the Eagle Valley ground-water basin by streamflow in Vicee Canyon, west-central Nevada
D. K. Maurer, J.M. Fischer
1988, Water-Resources Investigations Report 88-4158
Recharge to groundwater could be increased by adding imported water to natural surface water flow in Vicee Canyon, in Eagle Valley, Nevada, where municipal pumping has caused as much as 50 ft of water level decline since 1972. Measurements of infiltration rates, percolation rates, and hydraulic conductivity indicate that the...
Estimation, analysis, sources, and verification of consumptive water use data in the Great Lakes-St. Lawrence River basin
D. S. Snavely
1988, Water-Resources Investigations Report 88-4146
The Great Lakes-St. Lawrence River basin provides water for many uses and for wildlife habitat; thus many groups have developed strategies to manage the basin 's water resource. The International Joint Commission (IJC) is reviewing and comparing available consumptive-use data to assess the magnitude and effect of consumptive uses under...
Simulation of ground-water flow in the lower sand unit of the Potomac-Raritan-Magothy aquifer system, Philadelphia, Pennsylvania
R. A. Sloto
1988, Water-Resources Investigations Report 86-4055
Ground-water flow in the lower sand unit of the Potomac-Raritan-Magothy aquifer system in Philadelphia was simulated with a two-dimensional finite- difference ground-water model. The modeled 133-square-mile area also included parts of Delaware County, Pennsylvania, and Camden and Gloucester Counties, New Jersey. The lower sand unit is Cretaceous in age and...
Effects of urbanization on storm-runoff volume and peak discharge of Valley Creek, eastern Chester County, Pennsylvania
R. A. Sloto
1988, Water-Resources Investigations Report 87-4196
Peak discharge and runoff volume were simulated for 21 storms in the Valley Creek basin using the U.S. Geological Survey Distributed Routing Rainfall-Runoff Model (DR3M). Storm peak discharges ranged from 301 to 900 cubic feet per second. Rainfall was measured at three recording rain gages in the basin. Observed and...
Ground-water flow and solute transport at a municipal landfill site on Long Island, New York. Part 3, simulation of solute transport
E. J. Wexler
1988, Water-Resources Investigations Report 86-4207
A solute transport model representing a 2.3-sq mi area surrounding and downgradient from a municipal landfill site in the Town of Brookhaven, N.Y. was used to simulate migration of a conservative solute (chloride) in the upper glacial aquifer. Aquifer values used in the model were: hydraulic conductivity, 200 ft/day; effective...
Ground-water flow and solute transport at a municipal landfill site on Long Island, New York — Part 2: Simulation of ground-water flow
E. J. Wexler, P. E. Maus
1988, Water-Resources Investigations Report 86-4106
Data on the hydrogeology of a 26-sq-mi area surrounding the Brookhaven landfill site in central Suffolk County were collected as part of a hydrologic investigation of solute transport from the site. These data were used to develop a steady-state groundwater flow model of the upper glacial (water table) aquifer in...
Effects of flood controls proposed for West Branch Brandywine Creek, Chester County, Pennsylvania
R. A. Sloto
1988, Water-Resources Investigations Report 86-4054
Twenty-four-hour rainfall, distributed over time according to the U.S. Soil Conservation Service type II rainfall distribution, was used as input to calibrated rainfall-runoff models of three subbasins in the West Branch Brandywine Creek watershed. The effects of four proposed flood controls were evaluated by using these rainfalls to simulate discharge...
Modifications of a three-dimensional ground-water flow model to account for variable water density and effects of multiaquifer wells
A.L. Kontis, R.J. Mandle
1988, Water-Resources Investigations Report 87-4265
Ground-water availability in the central part of Lake Ontario basin, New York
Todd S. Miller, Martha M. Krebs
1988, Water-Resources Investigations Report 87-4183
A set of three maps showing surficial geology, distribution of glacial aquifers, and potential well yield in the 708 sq mi central part of the Lake Ontario basin are presented at a scale of 1:125,000. The basin is parallel to Lake Ontario and extends from Rochester in the west to...
Potential yields of wells in unconsolidated aquifers in upstate New York — Lower Hudson sheet
Edward F. Bugliosi, Ruth A. Trudell
1988, Water-Resources Investigations Report 87-4274
This map shows the location and potential well yields from unconsolidated aquifers in the lower-Hudson region at a 1:250 ,000 scale. It also delineates segments of aquifers that are heavily used by community water systems and designated by the New York State Department of Environmental Conservation as ' Primary water...
Potential yields of wells in unconsolidated aquifers in upstate New York — Hudson-Mohawk sheet
Edward F. Bugliosi, Ruth A. Trudell, George D. Casey
1988, Water-Resources Investigations Report 87-4275
This map shows the location and potential well yields of unconsolidated aquifers in the Hudson-Mohawk region at a scale of 1:250,000. It also delineates segments of aquifers that are heavily used by community water systems and designated by the New York State Department of Environmental Conservation as ' Primary Water...
Simulation of ground-water flow in aquifers along the Susquehanna River in Columbia County, Pennsylvania
J.H. Williams, G.E. Senko
1988, Water-Resources Investigations Report 85-4185
A numerical model of groundwater flow was developed for a 10.3 sq mi area along the Susquehanna River in Columbia County, east central Pennsylvania. Groundwater in the model area primarily is in secondary openings in the carbonate--and clastic-rock aquifers and primary openings in the glacial-outwash aquifer that discontinuously overlies bedrock....
Potential yields of wells in unconsolidated aquifers in upstate New York — Adirondack sheet
Edward F. Bugliosi, Ruth A. Trudell, George D. Casey
1988, Water-Resources Investigations Report 87-4276
This map shows the location and potential well yield from unconsolidated aquifers in the Adirondack region at a 1:250,000 scale. It also delineates segments of aquifers that are heavily used by community water systems and designated by the New York State Department of Environmental Conservation as ' Primary Water Supply...
Geologic and hydrologic investigations of a potential nuclear waste disposal site at Yucca Mountain, southern Nevada
Michael D. Carr, James C. Yount, editor(s)
1988, Bulletin 1790
Crustal velocity sections based on two seismic-refraction profiles are presented for the area west of Yucca Mountain, Nye County, Nevada. The Crater Flat profile is interpreted in terms of six velocity layers ranging from 1.5 to 6.1 km/s. Interpretation of the Beatty profile reveals an escarpment near the northeast edge...
Preliminary evaluation of the hydrogeologic system in Owens Valley, California
W.R. Danskin
1988, Water-Resources Investigations Report 88-4003
A preliminary, two-layer, steady-state, groundwater flow model was used to evaluate present data and hydrologic concepts of Owens Valley, California. Simulations of the groundwater system indicate that areas where water levels are most affected by changes in recharge and discharge are near toes of alluvial fans and along the edge...
