Publications

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

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

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January 1, 1992

Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania; description and water quality of the Little Conestoga Creek headwaters prior to the implementation of nutrient management Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania; description and water quality of the Little Conestoga Creek headwaters prior to the implementation of nutrient management

The headwaters of the Conestoga River are being studied to determine the effects of agricultural Best-Management Practices on surface-water and ground-water quality. As part of this study, a 5.82-square-mile area of the Little Conestoga Creek headwaters (Small Watershed) was monitored during 1984-86, prior to implementation of Best-Management Practices. This report describes the land use...

Authors

D. K. Fishel, M. J. Brown, K. M. Kostelnik, M.A. Howse

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

January 1, 1992

Evaluation of nutrient quality-assurance data for Alexanders and Mount Rock Spring basins, Cumberland County, Pennsylvania Evaluation of nutrient quality-assurance data for Alexanders and Mount Rock Spring basins, Cumberland County, Pennsylvania

A total of 304 nutrient samples were collected from May 1990 through September 1991 to determine concentrations and loads of nutrients in water discharged from two spring basins in Cumberland County, Pa. Fifty-four percent of these nutrient samples were for the evaluation of (1) laboratory consistency, (2) container and preservative cleanliness, (3) maintenance of analyte...

Authors

E. C. Witt, D. J. Hippe, R.M. Giovannitti

Water Resources Mission Area, Pennsylvania Water Science Center

December 31, 1991

Geochemical evolution of acidic ground water at a reclaimed surface coal mine in western Pennsylvania Geochemical evolution of acidic ground water at a reclaimed surface coal mine in western Pennsylvania

Concentrations of dissolved sulfate and acidity in ground water increase downflow in mine spoil and underlying bedrock at a reclaimed surface coal mine in the bituminous field of western Pennsylvania. Elevated dissolved sulfate and negligible oxygen in ground water from bedrock about 100 feet below the water table suggest that pyritic sulfur is oxidized below the water table, in a system...

Authors

Charles A. Cravotta

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

Water-resources investigations in Pennsylvania; programs and activities of the U.S. Geological Survey, 1990-91 Water-resources investigations in Pennsylvania; programs and activities of the U.S. Geological Survey, 1990-91

The U.S. Geological Survey (USGS) was established by an act of Congress on March 3, 1879, to provide a permanent Federal agency to conduct the systematic and scientific 'classification of the public lands, and examination of the geological structure, mineral resources, and products of national domain'. Since 1879, the research and fact-finding role of the USGS has grown and has been...

Authors

L.O. McLanahan

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

Comment on “Flow and tracer transport in a single fracture: A stochastic model and its relation to some field observations” by L. Moreno et al. Comment on “Flow and tracer transport in a single fracture: A stochastic model and its relation to some field observations” by L. Moreno et al.

Moreno et al. [1988] (hereinafter referred to as MT) used a particle-tracking scheme to investigate the physics of solute movement in a variable-aperture planar fracture. The spatially heterogeneous fluid velocity was assumed to be the only mechanism of solute movement; local or pore scale dispersion and molecular diffusion were assumed to be negligible. The particle-tracking scheme used...

Authors

Daniel J. Goode, Allen M. Shapiro

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

Testing a method-of-characteristics model of three-dimensional solute transport in ground water Testing a method-of-characteristics model of three-dimensional solute transport in ground water

A new three-dimensional model of solute transport in groundwater that is based on a widely used two-dimensional method of characteristics model and is coupled to a modular finite-difference flow model is under development. The model's accuracy for ideal aquifers having homogeneous properties, uniform boundary conditions, and steady flow along a grid direction is demonstrated by...

Authors

Daniel J. Goode, Leonard F. Konikow

Water Resources Mission Area, Toxic Substances Hydrology, Pennsylvania Water Science Center

January 1, 1991

Altitude and configuration of the water-level surface in the Lower Paleozoic and Precambrian crystalline rocks of the Red Clay Creek basin, Chester County, Pennsylvania, and New Castle County, Delaware, June through October 1989 and March 1990 Altitude and configuration of the water-level surface in the Lower Paleozoic and Precambrian crystalline rocks of the Red Clay Creek basin, Chester County, Pennsylvania, and New Castle County, Delaware, June through October 1989 and March 1990

No abstract available

Authors

Karen L. Vogel, Wendy E. Miller, B. Craig McManus

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

Hydrology and the hypothetical effects of reducing nutrient applications on water quality in the Bald Eagle Creek Headwaters, southeastern Pennsylvania prior to implementation of agricultural best-management practices Hydrology and the hypothetical effects of reducing nutrient applications on water quality in the Bald Eagle Creek Headwaters, southeastern Pennsylvania prior to implementation of agricultural best-management practices

The report characterizes a 0.43-square-mile agricultural watershed in York County, underlain by albite-chlorite and oligoclase-mica schist in the Lower Susquehanna River basin, that is being studied as part of the U.S. Environmental Protection Agency's Chesapeake Bay Program. The water quality of Bald Eagle Creek was studied from October 1985 through September 1987 prior to the...

Authors

D. K. Fishel, M. J. Langland, M. V. Truhlar

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

Geohydrology and ground-water resources of Philadelphia, Pennsylvania Geohydrology and ground-water resources of Philadelphia, Pennsylvania

The aquifers underlying the 134.6-square-mile city of Philadelphia are divided by the Fall Line into the unconsolidated aquifers (chiefly sand and gravel) of the Coastal Plain and the consolidated-rock aquifers (chiefly schist of the Wissahickon Formation) of the Piedmont. Ground water is present under confined and unconfined conditions. The principal units of the confined-aquifer system...

Authors

Gary N. Paulachok

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

Comment on “Macrodispersion in sand-shale sequences” by A. J. Desbarats Comment on “Macrodispersion in sand-shale sequences” by A. J. Desbarats

Desbarats [1990] used a particle-tracking scheme to investigate the physics of three-dimensional solute transport in aquifers composed of two porous media of different hydraulic conductivities. The spatially heterogeneous fluid velocity was assumed to be the only mechanism of solute movement; local or pore scale dispersion and molecular diffusion were assumed to be negligible. The...

Authors

Daniel J. Goode, Allen M. Shapiro

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1991

National water summary 1988–89 — Hydrologic events and floods and droughts National water summary 1988–89 — Hydrologic events and floods and droughts

National Water Summary 1988-89 - Hydrologic Events and Floods and Droughts documents the occurrence in the United States, Puerto Rico, and the U.S. Virgin Islands of two types of extreme hydrologic events floods and droughts on the basis of analysis of stream-discharge data. This report details, for the first time, the areal extent of the most notable floods and droughts in each State...

Water Resources Mission Area, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, Dakota Water Science Center, Central Midwest Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Central Plains Water Science Center

January 1, 1991

Tributary-stream infiltration in Marsh Creek Valley, north-central Pennsylvania Tributary-stream infiltration in Marsh Creek Valley, north-central Pennsylvania

The geohydrology of infiltration from five tributary streams along a 3.6-mile reach of Marsh Creek valley in north-central Pennsylvania was investigated during 1983-85. Marsh Creek valley is underlain by up to 100 feet of stratified drift that overlies Devonian bedrock. The stratified drift is overlain by up to 30 feet of alluvial-fan deposits near the tributary streams. Four of the five

Authors

John H. Williams

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