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, 2000

Preliminary effects of streambank fencing of pasture land on the quality of surface water in a small watershed in Lancaster County, Pennsylvania

The use of fencing to exclude pastured animals from streams has been recognized as an agricultural best-management practice. Streambank fencing was installed in a small basin within the Mill Creek Watershed of Lancaster County, Pa., during summer 1997 to evaluate the effectiveness of fencing on surface-water quality. A preliminary review of data collected during a pre-treatment, or calibration per

Authors

Daniel G. Galeone

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2000

Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1995-97

Physical, chemical, and biological data were collected at 51 sampling sites in Chester County, Pa., from 1970 through 1997 as part of the Stream Conditions of Chester County Program. This report presents data collected from 43 sites from 1995 through 1997 that constitute a continuation of the program. Physical data include water temperature, instantaneous stream discharge, pH, alkalinity, specific

Authors

Andrew G. Reif

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2000

Hydrologic aspects of the 1998-99 drought in the Delaware River basin

A notable drought in the Delaware River Basin during late 1998 and most of 1999 had a major effect on surface and subsurface components of the hydrologic system. The drought conditions resulted from anomalous patterns in the general atmospheric circulation that diverted Gulf and subtropical Atlantic moisture away from the basin. From September 1998 to August 1999, the accumulated precipitation def

Authors

Gary N. Paulachok, Bruce E. Krejmas, Heidi L. Soden

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2000

Assessment of freshwater mussels in the Allegheny River at Foxburg, Pennsylvania, 1998

The upper reaches of the Allegheny River are a high-quality resource that supports populations of a number of endangered species. Two endangered species of freshwater mussel, the northern riffleshell, Epioblasma torulosa rangiana, and clubshell, Pleurobema clava, are present in this river reach. Prior to a bridge-replacement project at the Allegheny River at Foxburg, Pa. (river mile 86.2), a musse

Authors

Robert M. Anderson

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2000

Factors affecting nutrient trends in major rivers of the Chesapeake Bay Watershed

Trends in nutrient loads and flow-adjusted concentrations in the major rivers entering Chesapeake Bay were computed on the basis of water-quality data collected between 1985 and 1998 at 29 monitoring stations in the Susquehanna, Potomac, James, Rappahannock, York, Patuxent, and Choptank River Basins. Two computer models?the Chesapeake Bay Watershed Model (WSM) and the U.S. Geological Survey?s 'Spa

Authors

Lori A. Sprague, M. J. Langland, S.E. Yochum, R. E. Edwards, J. D. Blomquist, S.W. Phillips, G.W. Shenk, S. D. Preston

Chesapeake Bay Activities, Pennsylvania Water Science Center

January 1, 2000

Altitude and configuration of the potentiometric surface in Upper Elk Creek watershed, Chester County, Pennsylvania, January through June 1999

No abstract available

Authors

Abdul Mohammad

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2000

Altitude and configuration of the potentiometric surface in Warwick and East Nantmeal townships, Chester County, Pennsylvania, July through December 1998

No abstract available

Authors

Cynthia J. Rowland

Water Resources Mission Area, Pennsylvania Water Science Center

December 31, 1999

Progress of environmental studies in coal mining areas of western Pennsylvania and central West Virginia

Two studies related to the regional environmental effects of coal mining in the Appalachian Plateau were conducted in 1998 as part of the National Water‐Quality Assessment program of the U.S. Geological Survey. The study area of about 20,000 square miles included parts of the Allegheny and Monongahela River basins in the north and the Kanawha River basin in the south. Water in domestic wells downg

Authors

James H. Eychaner

Water Resources Mission Area, Pennsylvania Water Science Center

October 1, 1999

Pennsylvania

No abstract available

Authors

Water Resources Mission Area, Pennsylvania Water Science Center

September 1, 1999

Evaluation of geophysical logs, Phase II, at Willow Grove Naval Air Station Joint Reserve Base, Montgomery County, Pennsylvania

Between March and April 1998, the U.S. Navy contracted Tetra Tech NUS Inc., to drill two monitor wells in the Stockton Formation at the Willow Grove Naval Air Station Joint Reserve Base, Horsham Township, Montgomery County, Pa. The wells MG-1634 and MG-1635 were installed to monitor water levels and sample contaminants in the shallow, intermediate, and deep water-producing zones of the fractured b

Authors

Randall W. Conger

Water Resources Mission Area, Pennsylvania Water Science Center

August 1, 1999

Simulating contaminant attenuation, double-porosity exchange, and water age in aquifers using MOC3D

MOC3D is a general-purpose computer model developed by the U.S. Geological Survey (USGS) for simulation of three-dimensional solute transport in ground water (Konikow and others, 1996). The model is an update to the widely used USGS two-dimensional solute-transport model (MOC) and is implemented as an optional “package” for the ground-water flow model MODFLOW (Harbaugh and McDonald, 1996). Directl

Authors

Daniel J. Goode

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Pennsylvania Water Science Center

January 1, 1999

Hydrogeologic structure of the Newark Basin, Pennsylvania, from borehole geophysical logs

The Brunswick and the underlying Lockatong Formations are comprised of littrifled Mesozoic sediments that constitute part of the Newark Basin in southeastern Pennsylvania (USA). These fractured rocks form an important regional aquifer that consists of gmdational sequences of shale, siltstone, and sandstone, with fluid transport occurring primarily in fractures. An extensive suite of geophysical lo

Authors

R. H. Morin, L.A. Senior, E.R. Decker

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Pennsylvania Water Science Center