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, 1999

Comparison of methods for computing streamflow statistics for Pennsylvania streams Comparison of methods for computing streamflow statistics for Pennsylvania streams

Methods for computing streamflow statistics intended for use on ungaged locations on Pennsylvania streams are presented and compared to frequency distributions of gaged streamflow data. The streamflow statistics used in the comparisons include the 7-day 10-year low flow, 50-year flood flow, and the 100-year flood flow; additional statistics are presented. Streamflow statistics for gaged...

Authors

Marla H. Ehlke, Lloyd A. Reed

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Occurrence of organochlorine compounds in whole fish tissue from streams of the lower Susquehanna River Basin, Pennsylvania and Maryland, 1992 Occurrence of organochlorine compounds in whole fish tissue from streams of the lower Susquehanna River Basin, Pennsylvania and Maryland, 1992

Tissue samples of whole body white sucker (Catostomus commersoni) were collected at 15 sites and smallmouth bass (Micropterus dolomieu) were collected at 5 sites during 1992 in the Lower Susquehanna River Basin to determine the occurrence and distribution of 28 selected organochlorine compounds as part of the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Program...

Authors

Michael D. Bilger, Robin A. Brightbill, Harry L. Campbell

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Age, double porosity, and simple reaction modifications for the MOC3D ground-water transport model Age, double porosity, and simple reaction modifications for the MOC3D ground-water transport model

This report documents modifications for the MOC3D ground-water transport model to simulate (a) ground-water age transport; (b) double-porosity exchange; and (c) simple but flexible retardation, decay, and zero-order growth reactions. These modifications are incorporated in MOC3D version 3.0. MOC3D simulates the transport of a single solute using the method-of-characteristics numerical...

Authors

Daniel J. Goode

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Analysis of geophysical logs, at North Penn Area 6 Superfund Site, Lansdale, Montgomery County, Pennsylvania Analysis of geophysical logs, at North Penn Area 6 Superfund Site, Lansdale, Montgomery County, Pennsylvania

The U.S. Geological Survey (USGS), as part of technical assistance to the U.S. Environmental Protection Agency (USEPA), collected borehole geophysical log data in 34 industrial, commercial, and public supply wells and 28 monitor wells at the North Penn Area 6 Superfund Site, in Lansdale, Pa., from August 22, 1995, through August 29, 1997. The wells range in depth from 50 to 1,027 feet...

Authors

Randall W. Conger

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Hydrobiogeochemical interactions in 'anoxic' limestone drains for neutralization of acidic mine drainage Hydrobiogeochemical interactions in 'anoxic' limestone drains for neutralization of acidic mine drainage

Processes affecting neutralization of acidic coal mine drainage were evaluated within `anoxic' limestone drains (ALDs). Influents had pH≤3.5 and dissolved oxygen

Authors

E. I. Robbins, C.A. Cravotta, C.E. Savela, Gordon L. Nord

Pennsylvania Water Science Center

January 1, 1999

Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania

Within hours after the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania, local residents reported wells becoming dry, wells beginning to flow, and the formation of new springs. About 120 household-supply wells reportedly went dry within 3 months after the earthquake. About 80 of these wells were on a ridge between Jamestown and Greenville, where water-level...

Authors

Gary M. Fleeger, Daniel J. Goode, Theodore F. Buckwalter, Dennis W. Risser

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94 Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94

Physical, chemical, and biological data were collected at 51 sampling sites in Chester County, Pa., from 1970 through 1994 as part of the Stream Conditions of Chester County Program. This report presents data collected from 1981 through 1994. Physical data include water temperature, instantaneous stream discharge, pH, alkalinity, specific conductance, and dissolved oxygen. Chemical data...

Authors

Andrew G. Reif

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Ground-water system, estimation of aquifer hydraulic properties, and effects of pumping on ground-water flow in Triassic sedimentary rocks in and near Lansdale, Pennsylvania Ground-water system, estimation of aquifer hydraulic properties, and effects of pumping on ground-water flow in Triassic sedimentary rocks in and near Lansdale, Pennsylvania

Ground water in Triassic-age sedimentary fractured-rock aquifers in the area of Lansdale, Pa., is used as drinking water and for industrial supply. In 1979, ground water in the Lansdale area was found to be contaminated with trichloroethylene, tetrachloroethylene, and other man-made organic compounds, and in 1989, the area was placed on the U.S. Environmental Protection Agency's (USEPA)...

Authors

Lisa A. Senior, Daniel J. Goode

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Summary of hydrogeologic and ground-water-quality data and hydrogeologic framework at selected well sites, Adams County, Pennsylvania Summary of hydrogeologic and ground-water-quality data and hydrogeologic framework at selected well sites, Adams County, Pennsylvania

Rapid population growth in Adams County has increased the demand for ground water and led Adams County planning officials to undertake an effort to evaluate the capabilities of existing community water systems to meet future, projected growth and to begin wellhead-protection programs for public-supply wells. As part of this effort, this report summarizes ground-water data on a countywide...

Authors

Dennis J. Low, Diana L. Dugas

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Hydrogeologic framework and sampling design for an assessment of agricultural pesticides in ground water in Pennsylvania Hydrogeologic framework and sampling design for an assessment of agricultural pesticides in ground water in Pennsylvania

State agencies responsible for regulating pesticides are required by the U.S. Environmental Protection Agency to develop state management plans for specific pesticides. A key part of these management plans includes assessing the potential for contamination of ground water by pesticides throughout the state. As an example of how a statewide assessment could be implemented, a plan is...

Authors

Bruce D. Lindsey, Tammy M. Bickford

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Influence of land use and open-water wetlands on water quality in the Lake Wallenpaupack basin, northeastern Pennsylvania Influence of land use and open-water wetlands on water quality in the Lake Wallenpaupack basin, northeastern Pennsylvania

The recreational value of Lake Wallenpaupack, along with its proximity to the New York and New Jersey metropolitan areas, has resulted in residential development in parts of the watershed. Some of these developments encroach on existing ponds, lakes, and wetlands and result in the conversion of forest land to residential areas. Sediment and nutrients in runoff from these residential...

Authors

James I. Sams, Rick L. Day, John M. Stiteler

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1999

Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania

The Trouts Lane well field in Stewartstown, Pa., was selected as a case study for delineating a contributing area in a fractured crystalline-bedrock aquifer. The study emphasized the importance of refining the understanding of boundary conditions and major heterogeneities that affect ground-water movement to the supply well by conducting (1) fracture-trace mapping, (2) borehole logging...

Authors

Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Randall W. Conger

Water Resources Mission Area, Pennsylvania Water Science Center