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Publications

Nitrogen in the Chesapeake Bay Watershed - A Century of Change, 1950–2050

National Award for Superior Communication Product

News Event

Domestic Well Water Quality in Marcellus Shale Region

Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania

Journal Article

Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus Shale gas development, Sullivan County, Pennsylvania

Report at Pennsylvania Geological Survey

Publications are the cornerstone of the Pennsylvania Water Science Center’s dissemination of scientific data and conclusions. 

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Filter Total Items: 969

Apparent dispersion in transient groundwater flow Apparent dispersion in transient groundwater flow

This paper investigates the effects of large-scale temporal velocity fluctuations, particularly changes in the direction of flow, on solute spreading in a two-dimensional aquifer. Relations for apparent longitudinal and transverse dispersivity are developed through an analytical solution for dispersion in a fluctuating, quasi-steady uniform flow field, in which storativity is zero. For...
Authors
Daniel J. Goode, Leonard F. Konikow
By
Water Resources Mission Area, Pennsylvania Water Science Center

Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86 Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86

Five headwater streams in the Laurel Hill area in southwestern Pennsylvania were investigated from September 1983 through February 1986 to determine possible effects of acidic precipitation on water quality. Precipitation in the Laurel Hill area is among the most acidic in the Nation, with a mean volume-weighted pH of 4.06. Sulfate is the dominant acid-forming anion, averaging 3.6...
Authors
J. L. Barker, E. C. Witt
By
Water Resources Mission Area, Pennsylvania Water Science Center

Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1969-80 Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1969-80

This report presents physical, chemical, and biological data collected at 50 sampling sites on selected streams in Chester County, Pennsylvania from 1969 to 1980. The physical data consist of air and water temperature, stream discharge, suspended sediment, pH, specific conductance, and dissolved oxygen. The chemical data consist of laboratory determinations of total nutrients, major ions...
Authors
C.R. Moore
By
Water Resources Mission Area, Pennsylvania Water Science Center

Streamflow and water-quality data for Little Scrubgrass Creek basin, Venango and Butler counties, Pennsylvania, December 1987 - November 1988 Streamflow and water-quality data for Little Scrubgrass Creek basin, Venango and Butler counties, Pennsylvania, December 1987 - November 1988

Streamflow and water-quality data were collected throughout the Little Scrubgrass Creek basin, Venango and Butler Counties, Pennsylvania, from December 1987 to November 1988, to determine the prevailing quality of surface water throughout the basin. This data will assist the Pennsylvania Department of Environmental Resources during its review of coal mine permit applications. A water...
Authors
K. M. Kostelnik, R.R. Durlin
By
Water Resources Mission Area, Pennsylvania Water Science Center

Estimation of flood-frequency characteristics and the effects of urbanization for streams in the Philadelphia, Pennsylvania area Estimation of flood-frequency characteristics and the effects of urbanization for streams in the Philadelphia, Pennsylvania area

This report provides a method for estimating the magnitude and frequency of floods for small streams in the Philadelphia, Pennsylvania area. Data collected at 21 streamflow gaging stations were used in a multiple-regression analysis to develop equations for computation of peak-flow characteristics. The flood equations were determined by relating flood-frequency characteristics computed...
Authors
J.F. Bailey, W.O. Thomas, K. L. Wetzel, T.J. Ross
By
Water Resources Mission Area, Pennsylvania Water Science Center

Suspended-sediment yields from an unmined area and from mined areas before and after reclamation in Pennsylvania, June 1978-September 1983 Suspended-sediment yields from an unmined area and from mined areas before and after reclamation in Pennsylvania, June 1978-September 1983

The U.S. Geological Survey, in cooperation with the Pennsylvania Department of Environmental Resources, has collected hydrologic data from areas in Tioga, Clearfield, and Fayette Counties to determine the effects of surface coal mining on sediment yields. The data were collected from June 1978 through September 1983. Rainfall, streamflow and suspended-sediment data were collected with...
Authors
L.A. Reed, R.A. Hainly
By
Water Resources Mission Area, Pennsylvania Water Science Center

Streamflow and water-quality data for Little Clearfield Creek basin, Clearfield County, Pennsylvania, December 1987 - November 1988 Streamflow and water-quality data for Little Clearfield Creek basin, Clearfield County, Pennsylvania, December 1987 - November 1988

Streamflow and water quality data were collected throughout the Little Clearfield Creek basin, Clearfield County, Pennsylvania, from December 1987 through November 1988, to determine the existing quality of surface water over a range of hydrologic conditions. This data will assist the Pennsylvania Department of Environmental Resources during its review of coal mine permit applications. A...
Authors
K. M. Kostelnik, R.R. Durlin
By
Water Resources Mission Area, Pennsylvania Water Science Center

Modification of a method-of-characteristics solute-transport model to incorporate decay and equilibrium-controlled sorption or ion exchange Modification of a method-of-characteristics solute-transport model to incorporate decay and equilibrium-controlled sorption or ion exchange

The U.S. Geological Survey computer model of two-dimensional solute transport and dispersion in ground water (Konikow and Bredehoeft, 1978) has been modified to incorporate the following types of chemical reactions: (1) first-order irreversible rate-reaction, such as radioactive decay; (2) reversible equilibrium-controlled sorption with linear, Freundlich, or Langmuir isotherms; and (3)...
Authors
D.J. Goode, Leonard F. Konikow
By
Water Resources Mission Area, Toxic Substances Hydrology, Pennsylvania Water Science Center

Altitude and configuration of the potentiometric surface in the Triassic sandstones and shales, northeastern Chester County, Pennsylvania, September 1987 through January 1988 Altitude and configuration of the potentiometric surface in the Triassic sandstones and shales, northeastern Chester County, Pennsylvania, September 1987 through January 1988

The altitude of the water levels in the Triassic sandstones and shales in northeastern Chester County is shown on a map at a scale of 1:24,000. The map is based on water levels in 173 non-pumping drilled and dug wells measured in 1956 and 1965, and on the altitude of two springs that were flowing in November and December 1987. Water level altitudes are contoured at an interval of 20 ft...
Authors
Lisa A. Senior, John A. Garges
By
Water Resources Mission Area, Pennsylvania Water Science Center

Surface-water quality in the West Branch Susquehanna River basin, Pennsylvania: An appraisal of areal and temporal variability from 1962 to 1982 in hydrologic accounting unit 020502 Surface-water quality in the West Branch Susquehanna River basin, Pennsylvania: An appraisal of areal and temporal variability from 1962 to 1982 in hydrologic accounting unit 020502

The West Branch Susquehanna River basin has a drainage area of 6,955 square miles in north-central Pennsylvania and comprises Hydrologic Accounting Unit 020502. A National Stream Quality Accounting Network (NASQAN) waterquality data collection site, maintained by the U.S. Geological Survey, is located on the river near its mouth at Lewisburg, Pennsylvania. Water-quality data are...
Authors
R.A. Hainly, J.F. Truhlar, K. L. Wetzel
By
Water Resources Mission Area, Pennsylvania Water Science Center

Water quality of the West Branch Lackawaxen River and limnology of Prompton Lake, Wayne County, Pennsylvania, October 1986 through September 1987 Water quality of the West Branch Lackawaxen River and limnology of Prompton Lake, Wayne County, Pennsylvania, October 1986 through September 1987

The water quality of the West Branch Lackawaxen River and the limnology of Prompton Lake in northeastern Pennsylvania were studied from October 1986 through September 1987 to determine past and present water-quality conditions in the basin, and to determine the possible effects of raising the lake level on the water quality of the Lake, of the river downstream, and of ground water. Past...
Authors
J. L. Barker
By
Water Resources Mission Area, Pennsylvania Water Science Center

Water-resources activities of the U.S. Geological Survey in Pennsylvania, 1988-89 Water-resources activities of the U.S. Geological Survey in Pennsylvania, 1988-89

As part of the U.S. Geological Survey Water Resources Division 's objective of presenting impartial, accurate data and scientific analyses equally to all interested parties, current activities in Pennsylvania are described by a listing of project location, cooperator(s), period of project, project chief, headquarters office, problem, objective, approach, progress and plans. The basic...
Authors
Robert E. Helm
By
Water Resources Mission Area, Pennsylvania Water Science Center
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