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

National Award for Superior Communication Product

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

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

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November 1, 1995

A strategy for delineating the area of ground-water contribution to wells completed in fractured bedrock aquifers in Pennsylvania A strategy for delineating the area of ground-water contribution to wells completed in fractured bedrock aquifers in Pennsylvania

Delineating a contributing area to a well completed in a fractured bedrock aquifer in Pennsylvania is difficult because the hydrogeologic characteristics of fractured rocks are extremely complex. Because of this complexity, a single method or technique to delineate a contributing area will not be applicable for all wells completed in fractured-bedrock aquifers. Therefore, a strategy for...

Authors

D. W. Risser, G. J. Barton

Water Resources Mission Area, Pennsylvania Water Science Center

November 1, 1995

Land use, organochlorine compound concentrations, and trends in benthic-invertebrate communities in selected stream basins in Chester County, Pennsylvania Land use, organochlorine compound concentrations, and trends in benthic-invertebrate communities in selected stream basins in Chester County, Pennsylvania

Land use was analyzed for the drainage areas of 26 stream sites in Chester County, Pa., that cover a total area of 227 square miles or about 30 percent of the country. The most significant land-use changes during 1967-87 were decreased agricultural land use, increased residential land use, and increased commercial and industrial land use. Bulk samples of stream-bottom materials were

Authors

Mark A. Hardy, Kim L. Wetzel, Craig R. Moore

Water Resources Mission Area, Pennsylvania Water Science Center

October 1, 1995

Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania: Part I — Basic data Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania: Part I — Basic data

This report describes basic data used to develop Geographic Information System data sets of bedrock geology, sinkholes and closed depressions, and spring and well locations attributed with hydro- geologic and water-quality data in the Pequea and Mill Creek watersheds, a 210-square-mile area in Lancaster and Chester Counties, Pa. The data sets, which do not contain hydrogeologic...

Authors

Diana L. Dugas, Stephen J. Char, Gary E. Baumbach

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

October 1, 1995

Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania; Part II, Hydrogeologic interpretations Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania; Part II, Hydrogeologic interpretations

This report describes Geographic Information System data sets of ground-water levels, unsaturated-zone thickness, and regolith thickness in the Pequea and Mill Creek watersheds, a 210-square-mile area in Lancaster and Chester Counties, Pa. The data sets, which represent hydrogeologic interpretations, were developed by the use of ARC/INFO software during 1990-93 by the U.S. Geological...

Authors

Dennis J. Low, Douglas C. Chichester, Stephen J. Char

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

October 1, 1995

Altitude and configuration of the potentiometric surface in part of lower Providence Township, Montgomery County, Pennsylvania, May and June 1994 Altitude and configuration of the potentiometric surface in part of lower Providence Township, Montgomery County, Pennsylvania, May and June 1994

A map showing ground-water levels in part of Lower Providence Township, Montgomery County, Pennsylvania, was constructed from water levels measured in 62 wells from May and June 1994. Observed water-level altitudes range from 60 feet above sea level near the Betzwood Picnic Area to 187 feet above sea level near the intersection of Egypt Road and Rittenhouse Road in Lower Providence...

Authors

B. C. McManus

Water Resources Mission Area, Pennsylvania Water Science Center

September 1, 1995

Effects of surface mining on the hydrology and biology in the Stony Fork basin, Fayette County, Pennsylvania, 1978-85 Effects of surface mining on the hydrology and biology in the Stony Fork basin, Fayette County, Pennsylvania, 1978-85

The effects of surface coal mining on the water quality, sediment discharge, and aquatic biology of streams in the Stony Fork Basin in southwestern Pennsylvania were studied from 1978 through 1985. Data were collected at five stream sites and one mine discharge site. Field data included streamflow, temperature, specific conductance, pH, acidity, and alkalinity. Laboratory analyses...

Authors

D.R. Williams, J.R. Ritter, T.M. Mastrilli

Water Resources Mission Area, Pennsylvania Water Science Center

September 1, 1995

A feasibility study to estimate minimum surface-casing depths of oil and gas wells to prevent ground-water contamination in four areas of western Pennsylvania A feasibility study to estimate minimum surface-casing depths of oil and gas wells to prevent ground-water contamination in four areas of western Pennsylvania

Hydrologic data were evaluated from four areas of western Pennsylvania to estimate the minimum depth of well surface casing needed to prevent contamination of most of the fresh gr6unct-water resources by oil and gas wells. The areas are representative of the different types of oil and gas activities and of the ground-water hydrology of most sections of the Appalachian Plateaus...

Authors

T. F. Buckwalter, P. J. Squillace

Water Resources Mission Area, Pennsylvania Water Science Center

August 1, 1995

National Water-Quality Assessment Program; the Allegheny-Monongahela River Basin National Water-Quality Assessment Program; the Allegheny-Monongahela River Basin

In 1991, the U.S. Geological Survey (USGS) began a National Water-Quality Assessment (NAWQA) program. The three major objectives of the NAWQA program are to provide a consistent description of current water-quality conditions for a large part of the Nation's water resources, define long-term trends in water quality, and identify, describe, and explain the major factors that affect water...

Authors

Steven D. McAuley

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1995

Geohydrology and vertical distribution of volatile organic compounds in ground water, Fischer and Porter Company Superfund Site, Warminster, Bucks County, Pennsylvania Geohydrology and vertical distribution of volatile organic compounds in ground water, Fischer and Porter Company Superfund Site, Warminster, Bucks County, Pennsylvania

The Fischer and Porter Company Superfund Site is underlain by sedimentary rocks of the Upper Triassic Stockton Formation, which consists of interbedded siltstone, very-fine grained to coarse-grained sandstone, and conglomerate in crudely defined, upward fining cycles. These rocks form a complex, heterogeneous, leaky, multiaquifer system comprised of a series of gently dipping lithologic...

Authors

Ronald A. Sloto, Paola Macchiaroli, Randall W. Conger

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1995

Synthesis of nutrient and sediment data for watersheds within the Chesapeake Bay drainage basin Synthesis of nutrient and sediment data for watersheds within the Chesapeake Bay drainage basin

Nutrient and sediment data collected by Federal and state agencies from 1972 through 1992 at 1,058 surface-water sites in nontidal parts of the Chesapeake Bay Basin were compiled into a large database. Adequate nutrient, sediment, and streamflow data were not available to compute annual loads for all sites because water-quality monitoring at many of the sites was either short term or...

Authors

M. J. Langland, P. L. Lietman, S. A. Hoffman

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

January 1, 1995

Altitude and configuration of the potentiometric surface, Casey Village, Warminster and Upper Southampton townships, Bucks County, Pennsylvania, August 3, 1995 Altitude and configuration of the potentiometric surface, Casey Village, Warminster and Upper Southampton townships, Bucks County, Pennsylvania, August 3, 1995

A map showing the potentiometric surface in Casey Village, Warminster and Upper Southampton Townships, Bucks County, was constructed from water levels measured on August 3, 1995. The potentiometric surface, measured in 17 wells screened between 18 and 64 feet below land surface, ranged from 321.99 to 344.80 feet above sea level. The potentiometric surface, measured in 12 wells screened...

Authors

Ronald A. Sloto, Kevin E. Grazul

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1995

Hydrology and the effects of selected agricultural best-management practices in the Bald Eagle Creek watershed, York County, Pennsylvania, prior to and during nutrient management: Water-quality study for the Chesapeake Bay Program Hydrology and the effects of selected agricultural best-management practices in the Bald Eagle Creek watershed, York County, Pennsylvania, prior to and during nutrient management: Water-quality study for the Chesapeake Bay Program

The U.S. Geological Survey, in cooperation with the Susquehanna River Basin Commission and the Pennsylvania Department of Environmental Resources, conducted a study as part of the U.S. Environmental Protection Agency's Chesapeake Bay Program to determine the effects of nutrient management of surface-water quality by reducing animal units in a 0.43-square-mile agricultural watershed in...

Authors

Michael J. Langland, David K. Fishel

Water Resources Mission Area, Pennsylvania Water Science Center, Chesapeake Bay Activities