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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December 31, 2002

Design and performance of limestone drains to increase pH and remove metals from acidic mine drainage, Chapter 2 Design and performance of limestone drains to increase pH and remove metals from acidic mine drainage, Chapter 2

Data on the construction characteristics and the composition of influent and effluent at 13 underground, limestone-filled drains in Pennsylvania and Maryland are reported to evaluate the design and performance of limestone drains for the attenuation of acidity and dissolved metals in acidic mine drainage. On the basis of the initial mass of limestone, dimensions of the drains, and...

Authors

Charles A. Cravotta, George R. Watzlaf

Pennsylvania Water Science Center

November 1, 2002

Geohydrology of Southeastern Pennsylvania Geohydrology of Southeastern Pennsylvania

Rapid population growth in southeastern Pennsylvania has increased the demand for ground water. In an effort to address the increased ground-water needs, a ground-water investigation in a 5,200-square-mile area of southeastern Pennsylvania was initiated. Information on the geohydrologic system of the area and the water-bearing capabilities of 51 geohydrologic units in six physiographic...

Authors

Dennis J. Low, Daniel J. Hippe, Dawna Yannacci

Water Resources Mission Area, Pennsylvania Water Science Center

July 1, 2002

Prediction of velocities for a range of streamflow conditions in Pennsylvania Prediction of velocities for a range of streamflow conditions in Pennsylvania

A regression equation that is used nationwide to predict traveltime in streams during periods of low and moderate flow was developed by H.E. Jobson in 1996. Because none of the data used in the development of the equation were from streams in Pennsylvania, velocities for low and moderate flows predicted by the equation were compared to velocities measured during time-of-travel studies on...

Authors

Lloyd A. Reed, Marla H. Stuckey

Water Resources Mission Area, Pennsylvania Water Science Center

July 1, 2002

Ground-Water Resources of Big Elk Creek Basin, Pennsylvania and Maryland Ground-Water Resources of Big Elk Creek Basin, Pennsylvania and Maryland

Many rural areas in southeastern Pennsylvania, including the Big Elk Creek Basin, are undergoing a rapid population increase. New development and an expanding population increase consumptive water use, increase surface runoff, and have the potential to reduce ground-water recharge. The Big Elk Creek Basin is between the Delaware and Susquehanna River Basins and drains directly to the...

Authors

Ronald A. Sloto

Water Resources Mission Area, Pennsylvania Water Science Center

July 1, 2002

Software user's guide for determining the Pennsylvania scour critical indicator code and streambed scour assessment rating for roadway bridges Software user's guide for determining the Pennsylvania scour critical indicator code and streambed scour assessment rating for roadway bridges

This report presents the instructions required to use the Scour Critical Bridge Indicator (SCBI) Code and Scour Assessment Rating (SAR) calculator developed by the Pennsylvania Department of Transportation (PennDOT) and the U.S. Geological Survey to identify Pennsylvania bridges with excessive scour conditions or a high potential for scour. Use of the calculator will enable PennDOT...

Authors

M.F. Henneberg, J. L. Strause

Water Resources Mission Area, Pennsylvania Water Science Center

June 1, 2002

The U.S. Geological Survey and the Chesapeake Bay – The role of science in environmental restoration The U.S. Geological Survey and the Chesapeake Bay – The role of science in environmental restoration

The Chesapeake Bay is the Nation's largest estuary and historically supported one of the most productive fisheries in the world. In addition to supporting aquatic communities and wildlife, the bay's watershed serves the economic and recreational needs of 15 million people. The fertile soils of the watershed support significant agricultural production. Unfortunately, the commercial...

Authors

Roger A. Barlow, John W. Brakebill, John F. Bratton, Vicki S. Blazer, John Karl Bohlke, Owen P. Bricker, Steve M. Colman, Thomas M. Cronin, Cliff R. Hupp, Janet R. Keough, Jurate M. Landwehr, Michael J. Langland, Wayne L. Newell, Matthew Perry, Scott W. Phillips, Steve D. Preston, Nancy B. Rybicki, Nancy S. Simon, Debra A. Willard

Ecosystems Mission Area, Water Resources Mission Area, Climate Adaptation Science Centers, Chesapeake Bay Activities, Eastern Ecological Science Center, Florence Bascom Geoscience Center, Maryland-Delaware-D.C. Water Science Center, Pennsylvania Water Science Center, Woods Hole Coastal and Marine Science Center

June 1, 2002

Use of stable isotopes of carbon, nitrogen, and sulfur to identify sources of nitrogen in surface waters in the lower Susquehanna River basin, Pennsylvania Use of stable isotopes of carbon, nitrogen, and sulfur to identify sources of nitrogen in surface waters in the lower Susquehanna River basin, Pennsylvania

With the exception of sewage and septic effluents, most nitrogen sources and soils contain larger proportions of organic and reduced forms of carbon, nitrogen, and sulfur than inorganic, oxidized forms. In contrast, most surface water and ground water contains larger proportions of dissolved inorganic carbon, nitrogen, and sulfur forms than organic forms. Data indicate that carbon...

Authors

Charles A. Cravotta

Water Resources Mission Area, Pennsylvania Water Science Center

June 1, 2002

Geohydrology and ground-water quality, Big Elk Creek Basin, Chester County, Pennsylvania, and Cecil County, Maryland Geohydrology and ground-water quality, Big Elk Creek Basin, Chester County, Pennsylvania, and Cecil County, Maryland

A study of ground-water quantity and quality was conducted in the Big Elk Creek Basin, a rural area undergoing rapid growth. The 79.4-square mile study area is in the Piedmont Physiographic Province and is underlain almost entirely by crystalline rocks. Most of the basin in Pennsylvania is underlain by Wissahickon Schist, a fractured crystalline- rock aquifer. Yields of wells in the...

Authors

Ronald A. Sloto

Water Resources Mission Area, Pennsylvania Water Science Center

May 1, 2002

Occurrence of bacteria in Blue Marsh Lake and selected tributaries, Berks County, Pennsylvania: September-October 2001 Occurrence of bacteria in Blue Marsh Lake and selected tributaries, Berks County, Pennsylvania: September-October 2001

The Commonwealth of Pennsylvania has water-quality standards that limit the number of specific bacteria in water that is considered safe for recreational use. Bacteria such as fecal streptococci, fecal coliforms, and Escherichia coli (E. coli) are used to assess recreational water quality because they usually live in the intestines of warm-blooded animals. Fecal indicator bacteria...

Authors

Michele L. Zimmerman

Water Resources Mission Area, Pennsylvania Water Science Center

May 1, 2002

Evaluation of borehole geophysical logging, aquifer-isolation tests, distribution of contaminants, and water-level measurements at the North Penn Area 5 Superfund Site, Bucks and Montgomery Counties, Pennsylvania Evaluation of borehole geophysical logging, aquifer-isolation tests, distribution of contaminants, and water-level measurements at the North Penn Area 5 Superfund Site, Bucks and Montgomery Counties, Pennsylvania

Borehole geophysical logging and aquifer-isolation (packer) tests were conducted at the North Penn Area 5 Superfund site in Bucks and Montgomery Counties, Pa. Caliper, naturalgamma, single-point-resistance, fluid-temperature, fluid-resistivity, heatpulse-flowmeter, and digital acoustic-televiewer logs and borehole television surveys were collected in 32 new and previously drilled wells...

Authors

Philip H. Bird, Randall W. Conger

Water Resources Mission Area, Pennsylvania Water Science Center

April 1, 2002

Microbiological quality of water from noncommunity supply wells in carbonate and crystalline aquifers of Pennsylvania Microbiological quality of water from noncommunity supply wells in carbonate and crystalline aquifers of Pennsylvania

Samples were collected from 59 noncommunity water supplies in the Commonwealth of Pennsylvania from September 2000 to January 2001 and analyzed for pathogens and microbiological indicator organisms. The pathogens sampled were culturable viruses and Helicobacter pylori (H. pylori). The indicator organisms sampled were total coliform, Escherichia coli (E. coli), Clostridium perfringens (C

Authors

Bruce D. Lindsey, Jennifer S. Rasberry, Tammy M. Zimmerman

Water Resources Mission Area, Pennsylvania Water Science Center

March 1, 2002

Interpretation of borehole geophysical logs, aquifer-isolation tests, and water quality, supply wells 1 and 2, Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania Interpretation of borehole geophysical logs, aquifer-isolation tests, and water quality, supply wells 1 and 2, Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania

Ground water pumped from supply wells 1 and 2 on the Willow Grove Naval Air Station/Joint Reserve Base (NAS/JRB) provides water for use at the base, including potable water for drinking. The supply wells have been contaminated by volatile organic compounds (VOC's), particularly trichloroethylene (TCE) and tetrachloroethylene (PCE), and the water is treated to remove the VOC's. The Willow...

Authors

Ronald A. Sloto, Daniel J. Goode, Steven M. Frasch

Water Resources Mission Area, Pennsylvania Water Science Center