Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

165969 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 4832, results 120776 - 120800

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Sewage plume in a sand and gravel aquifer, Cape Cod, Massachusetts
Denis LeBlanc
1982, Open-File Report 82-274
Secondarily treated domestic sewage has been disposed of on surface sand beds at the sewage treatment facility at Otis Air Force Base, Massachusetts, since 1936. Infiltration of the sewage through the sand beds into the underlying unconfined sand and gravel aquifer has resulted in a plume of sewage-contaminated ground water...
Techniques for estimating the magnitude and frequency of floods in the Dallas - Fort Worth metropolitan area, Texas
Larry F. Land, Elmer E. Schroeder, B.B. Hampton
1982, Water-Resources Investigations Report 82-18
Equations for predicting the magnitude and frequency of floods in the Dallas-Fort Worth metropolitan area were developed from recorded data from streams with drainage areas ranging in size from 1.25 to 66.4 square miles. The U. S. Geological Survey urban rainfall-runoff model was used to generate long-term flood-discharge record for...
Late Cenozoic stratigraphy and structure of the western margin of the central San Joaquin Valley, California
William R. Lettis
1982, Open-File Report 82-526
Late Cenozoic Stratigraphy Late Cenozoic deposits in the west-central San Joaquin Valley and adjacent foothills of the Diablo Range consist mainly of unconsolidated, poorly-sorted to well-sorted gravel, sand, silt and clay derived primarily from the Diablo Range and secondarily from the Sierra Nevada. Sedimentary structures, such as channeled contacts, laminated...
Computer programs for modeling flow and water quality of surface water systems
J.A. Lorens
1982, Open-File Report 82-430
A selection of available computer programs for modeling flow and water quality in surface water systems is described. The models include programs developed as part of the U.S. Geological Survey Water Resources Division hydrologic research activities and others developed by other agencies, universities, and consulting firms. Each model description includes...
A digital-computer model of the Big Sioux aquifer in Minnehaha County, South Dakota
N.C. Koch
1982, Water-Resources Investigations Report 82-4064
A finite-difference digital model was used to simulate steady-state conditions of the Big Sioux aquifer in Minnehaha County. Average water levels and average base flow discharge (4.9 cu ft/s) of the Big Sioux River were based on data from 1970 through 1979. The computer model was calibrated for transient conditions...
Hydrologic data for urban studies in the Houston, Texas, metropolitan area, 1979
Fred Liscum, Jay F. Weigel, J.P. Bruchmiller
1982, Open-File Report 82-164
Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, Houston, and San Antonio.The U.S. Geological Survey, in cooperation with the city of Houston, began studies in the Houston metropolitan area in 1964. The program was expanded...
Water levels in Nassau County Sewer Districts 2 and 3, Long Island, New York, 1978-79
H. F. Ku, D. L. Simmons
1982, Water-Resources Investigations Report 82-4017
Prior to development on Long Island, about 95 percent of total streamflow originated as groundwater seepage from the upper glacial aquifer; the remaining 5 percent consisted of direct storm runoff. Thus, the streams on Long Island function as groundwater drains. Their flow in dry weather is directly controlled by groundwater...
Effects of flooding upon woody vegetation along parts of the Potomac River flood plain
T.M. Yanosky
1982, Professional Paper 1206
A two-part study along the Potomac River flood plain near Washington, D.C., was undertaken to investigate the effects of flooding upon woody vegetation. Floods abrade bark, damage branches and canopies, and often uproot trees. The first study was of vegetation in five monumented flood-plain plots which differed in the frequency...
Preliminary data for northern Great Plains test well 1, quarter NE quarter Sec. 11, T.55N., R.77W., Sheridan County, Wyoming
D.H. Lobmeyer, L. O. Anna, J.F. Busby
1982, Open-File Report 82-446
This report documents the preliminary data obtained from Northern Great Plains test well 1 and describes the preliminary results and future testing plans. The intended audience includes hydrologists, local water users, drilling contractors, and water managers. The test well was drilled as part of the study to determine the water...
Water quality of the tidal Potomac River and Estuary; hydrologic data report, 1981 water year, with a section on collection and analysis of chlorophyll-a
Stephen F. Blanchard, Richard H. Coupe, Joan C. Woodward
1982, Open-File Report 82-575
This report contains data on the physical and chemical properties measured in the Tidal Potomac River and Estuary during the 1981 water year. Data were collected at least weekly at five stations, and periodically at 15 stations and at two other stations near the mouth of the Potomac River in...
Ground-water monitoring at Santa Barbara, California; Phase 2-effects of pumping on water levels and water quality in the Santa Barbara ground-water basins
Peter Martin
1982, Open-File Report 82-366
From July 1978 to January 1980, water levels declined more than 100 feet in the southern part of the Santa Barbara ground-water basin. The water-level declines are the result of increases in municipal pumping since July 1978. The increase in municipal pumping was part of a basin-testing program to determine...
Digital classification of Landsat data for vegetation and land-cover mapping in the Blackfoot River watershed, southeastern Idaho
L. R. Pettinger
1982, Professional Paper 1219
This paper documents the procedures, results, and final products of a digital analysis of Landsat data used to produce a vegetation and landcover map of the Blackfoot River watershed in southeastern Idaho. Resource classes were identified at two levels of detail: generalized Level I classes (for example, forest land and...
Sulfur isotopic composition and water chemistry in water from the High Plains aquifer, Oklahoma Panhandle and southwestern Kansas
Noel C. Krothe, Joseph W. Oliver
1982, Water-Resources Investigations Report 82-12
The Ogallala Formation comprises the High Plains aquifer in Oklahoma and southwestern Kansas. Regional ground-water flow is from west to east in the Ogallala Formation, and the concentration of dissolved solids in ground water increases in the direction of flow. This increase may be influenced by residence time, but underlying...
Potential hydrologic impacts of ground-water withdrawal from the Cape Cod National Seashore, Truro, Massachusetts
Denis R. LeBlanc
1982, Open-File Report 82-438
The hydrologic impacts of continuous ground-water withdrawals at 0.75, 1.0, and 1.24 Mgal/d (million gallons per day) from a test-well site in the Cape Cod National Seashore, Truro, Massachusetts, were evaluated with a three-dimensional finite-difference steady-state-flow digital model. The digital model was prepared during an earlier study and is only...
Geohydrology of the valley-fill aquifer in the Sprout and Fishkill creeks area, Dutchess County, New York
Richard B. Moore, R.G. LaFleur, W. G. Stelz, J. L. Belli
1982, Open-File Report 82-81
This report is the fifth in a series of 11 map sets depicting geohydrologic conditions in selected aquifers in upstate New York. Geohydrologic data are compiled on six maps at 1:24,000 scale. Together the maps provide a comprehensive overview of a major valley-fill aquifer in southwestern Dutchess County and a...