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, 2005

Implications of ground water chemistry and flow patterns for earthquake studies Implications of ground water chemistry and flow patterns for earthquake studies

Ground water can facilitate earthquake development and respond physically and chemically to tectonism. Thus, an understanding of ground water circulation in seismically active regions is important for earthquake prediction. To investigate the roles of ground water in the development and prediction of earthquakes, geological and hydrogeological monitoring was conducted in a seismogenic...

Authors

W. Guangcai, Z. Zuochen, W. Min, C.A. Cravotta, L. Chenglong

Water Resources Mission Area, Pennsylvania Water Science Center

December 31, 2004

Acidity and alkalinity in mine drainage: Theoretical considerations Acidity and alkalinity in mine drainage: Theoretical considerations

Acidity, net acidity, and net alkalinity are widely used parameters for the characterization of mine drainage, but these terms are not well defined and are often misunderstood. Incorrect interpretation of acidity, alkalinity, and derivative terms can lead to inadequate treatment design or poor regulatory decisions. We briefly explain derivations of theoretical expressions of three types...

Authors

Carl S. Kirby, Charles A. Cravotta

Pennsylvania Water Science Center

December 31, 2004

Acidity and Alkalinity in mine drainage: Practical considerations Acidity and Alkalinity in mine drainage: Practical considerations

In this paper, we emphasize that the Standard Method hot peroxide treatment procedure for acidity determination (hot acidity) directly measures net acidity or net alkalinity, but that more than one water-quality measure can be useful as a measure of the severity of acid mine drainage. We demonstrate that the hot acidity is related to the pH, alkalinity, and dissolved concentrations of Fe...

Authors

III Cravotta, Carl S. Kirby

Pennsylvania Water Science Center

October 1, 2004

Altitude and configuration of the water-level surface in Mesozoic sedimentary rocks at and near the North Penn Area 7 Superfund Site, Upper Gwynedd Township, Montgomery County, Pennsylvania, December 4-6, 2000 Altitude and configuration of the water-level surface in Mesozoic sedimentary rocks at and near the North Penn Area 7 Superfund Site, Upper Gwynedd Township, Montgomery County, Pennsylvania, December 4-6, 2000

No abstract available.

Authors

Lisa A. Senior, Allan J. Ruddy

Water Resources Mission Area, Pennsylvania Water Science Center

August 1, 2004

Assessment of water chemistry, habitat, and benthic macroinvertebrates at selected stream-quality monitoring sites in Chester County, Pennsylvania, 1998-2000 Assessment of water chemistry, habitat, and benthic macroinvertebrates at selected stream-quality monitoring sites in Chester County, Pennsylvania, 1998-2000

Biological, chemical, and habitat data have been collected from a network of sites in Chester County, Pa., from 1970 to 2003 to assess stream quality. Forty sites in 6 major stream basins were sampled between 1998 and 2000. Biological data were used to determine levels of impairment in the benthic-macroinvertebrate community in Chester County streams and relate the impairment, in...

Authors

Andrew G. Reif

Water Resources Mission Area, Pennsylvania Water Science Center

March 1, 2004

Total mercury and methylmercury in fish fillets, water, and bed sediments from selected streams in the Delaware River basin, New Jersey, New York, and Pennsylvania, 1998-2001 Total mercury and methylmercury in fish fillets, water, and bed sediments from selected streams in the Delaware River basin, New Jersey, New York, and Pennsylvania, 1998-2001

Within the Delaware River Basin, fish-tissue samples were analyzed for total mercury (tHg). Water and bed-sediment samples were analyzed for tHg and methylmercury (MeHg), and methylation efficiencies were calculated. This study was part of a National Mercury Pilot Program conducted by the U.S. Geological Survey (USGS). The Delaware River Basin was chosen because it is part of the USGS...

Authors

Robin A. Brightbill, Karen Riva-Murray, Michael D. Bilger, John D. Byrnes

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2004

Effects of Abandoned Coal-Mine Drainage on Streamflow and Water Quality in the Mahanoy Creek Basin, Schuylkill, Columbia, and Northumberland Counties, Pennsylvania, 2001 Effects of Abandoned Coal-Mine Drainage on Streamflow and Water Quality in the Mahanoy Creek Basin, Schuylkill, Columbia, and Northumberland Counties, Pennsylvania, 2001

This report assesses the contaminant loading, effects to receiving streams, and possible remedial alternatives for abandoned mine drainage (AMD) within the Mahanoy Creek Basin in east-central Pennsylvania. The Mahanoy Creek Basin encompasses an area of 157 square miles (407 square kilometers) including approximately 42 square miles (109 square kilometers) underlain by the Western Middle...

Authors

Charles A. Cravotta

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2004

Changes in streamflow and water quality in selected nontidal sites in the Chesapeake Bay Basin, 1985-2003 Changes in streamflow and water quality in selected nontidal sites in the Chesapeake Bay Basin, 1985-2003

Water-quality and streamflow data from 33 sites in nontidal portions of the Chesapeake Bay Basin were analyzed to document annual nutrient and sediment loads and trends for 1985 through 2003 as part of an annual evaluation of water-quality conditions by the Chesapeake Bay Program. As part of this study, different trend tests and methodologies were evaluated for future use in assessment...

Authors

Michael J. Langland, Scott Phillips, Jeff P. Raffensperger, Douglas Moyer

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

January 1, 2004

Determining sources of water and contaminants to wells in a carbonate aquifer near Martinsburg, Blair County, Pennsylvania, by use of geochemical indicators, analysis of anthropogenic contaminants, and simulation of ground-water flow Determining sources of water and contaminants to wells in a carbonate aquifer near Martinsburg, Blair County, Pennsylvania, by use of geochemical indicators, analysis of anthropogenic contaminants, and simulation of ground-water flow

Water supply for the Borough of Martinsburg, Pa., is from two well fields (Wineland and Hershberger) completed in carbonate-bedrock aquifers in the Morrison Cove Valley. Water supply is plentiful; however, waters with high concentrations of nitrate are a concern. This report describes the sources of water and contaminants to the supply wells. A review of previous investigations was used...

Authors

Bruce D. Lindsey, Michele L. Koch

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2004

Evaluation of borehole geophysical logs at the Sharon Steel Farrell Works Superfund site, Mercer County, Pennsylvania Evaluation of borehole geophysical logs at the Sharon Steel Farrell Works Superfund site, Mercer County, Pennsylvania

On April 14?15, 2003, geophysical logging was conducted in five open-borehole wells in and adjacent to the Sharon Steel Farrell Works Superfund Site, Mercer County, Pa. Geophysical-logging tools used included caliper, natural gamma, single-point resistance, fluid temperature, and heatpulse flowmeter. The logs were used to determine casing depth, locate subsurface fractures, identify...

Authors

Steven D. McAuley

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2004

Water resources data, Pennsylvania, water year 2003—volume 2. Susquehanna and Potomac River basins Water resources data, Pennsylvania, water year 2003—volume 2. Susquehanna and Potomac River basins

Water resources data for the 2003 water year for Pennsylvania consist of records of discharge and water quality of streams; contents and elevations of lakes and reservoirs; and water levels and water quality of ground-water wells. This report, Volume 2 contains (1) discharge records for 84 continuous-record streamflow-gaging stations, 13 partial- record stations, 21 special study and...

Authors

R.R. Durlin, W.P. Schaffstall

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 2004

Water resources data, Pennsylvania, water year 2003—volume 1. Delaware River Basin Water resources data, Pennsylvania, water year 2003—volume 1. Delaware River Basin

Water resources data for the 2003 water year for Pennsylvania consist of records of discharge and water quality of streams; contents and elevations of lakes and reservoirs; and water levels and water quality of ground-water wells. This report, Volume 1 contains (1) discharge records for 79 continuous-record streamflow-gaging stations, 8 partial-record stations, 19 special-study and...

Authors

R.R. Durlin, W.P. Schaffstall

Water Resources Mission Area, Pennsylvania Water Science Center