Shale Gas and Water Resources in Pennsylvania
Active
By Pennsylvania Water Science Center
May 13, 2025
Geospatial Analysis of Water-Quality Threats from Orphan Wells in Principal and Secondary Aquifers
USGS and partner scientists are investigating water availability, use, quality, and ecology associated with development of shale-gas energy resources in Pennsylvania.
Shale-gas development in Pennsylvania is focused on the Marcellus Shale. USGS is helping understand potential and actual impacts on water resources and ecosystems.
Media
Sources/Usage: Public Domain. View Media Details
Media
Sources/Usage: Public Domain. View Media Details
Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania, USA Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania, USA
Factors affecting groundwater quality used for domestic supply within the Marcellus Shale footprint in north-central and north-east Pennsylvania are identified using a combination of spatial, statistical, and geochemical modeling. Untreated groundwater, sampled during 2011–2017 from 472 domestic wells within the study area, exhibited wide ranges in pH (4.5–9.3), total dissolved solids...
Authors
Charles A. Cravotta, Lisa A. Senior, Matthew D. Conlon
Filter Total Items: 28
Estimation of methane concentrations and loads in groundwater discharge to Sugar Run, Lycoming County, Pennsylvania Estimation of methane concentrations and loads in groundwater discharge to Sugar Run, Lycoming County, Pennsylvania
A stream-sampling study was conducted to estimate methane concentrations and loads in groundwater discharge to a small stream in an active shale-gas development area of northeastern Pennsylvania. Grab samples collected from 15 streams in Bradford, Lycoming, Susquehanna, and Tioga Counties, Pa., during a reconnaissance survey in May and June 2013 contained dissolved methane concentrations...
Authors
Victor M. Heilweil, Dennis W. Risser, Randall W. Conger, Paul L. Grieve, Scott A. Hynek
Dissolved methane in groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12 Dissolved methane in groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12
The prospect of natural gas development from the Marcellus and Utica Shales has raised concerns about freshwater aquifers being vulnerable to contamination. Well owners are asking questions about subsurface methane, such as, “Does my well water have methane and is it safe to drink the water?” and “Is my well system at risk of an explosion hazard associated with a combustible gas like...
Authors
William M. Kappel
Water resources and shale gas/oil production in the Appalachian Basin: critical issues and evolving developments Water resources and shale gas/oil production in the Appalachian Basin: critical issues and evolving developments
Unconventional natural gas and oil resources in the United States are important components of a national energy program. While the Nation seeks greater energy independence and greener sources of energy, Federal agencies with environmental responsibilities, state and local regulators and water-resource agencies, and citizens throughout areas of unconventional shale gas development have...
Authors
William M. Kappel, John H. Williams, Zoltan Szabo
Baseline groundwater quality from 20 domestic wells in Sullivan County, Pennsylvania, 2012 Baseline groundwater quality from 20 domestic wells in Sullivan County, Pennsylvania, 2012
Water samples were collected from 20 domestic wells during August and September 2012 and analyzed for 47 constituents and properties, including nutrients, major ions, metals and trace elements, radioactivity, and dissolved gases, including methane and radon-222. This study, done in cooperation with the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic...
Authors
Ronald A. Sloto
Landscape consequences of natural gas extraction in Fayette and Lycoming Counties, Pennsylvania, 2004–2010 Landscape consequences of natural gas extraction in Fayette and Lycoming Counties, Pennsylvania, 2004–2010
Increased demands for cleaner burning energy, coupled with the relatively recent technological advances in accessing unconventional hydrocarbon-rich geologic formations, have led to an intense effort to find and extract natural gas from various underground sources around the country. One of these sources, the Marcellus Shale, located in the Allegheny Plateau, is currently undergoing...
Authors
E.T. Slonecker, L.E. Milheim, C.M. Roig-Silva, A.R. Malizia, B.H. Gillenwater
Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus shale gas development, Bradford County, Pennsylvania Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus shale gas development, Bradford County, Pennsylvania
Open-File Miscellaneous Investigation 13–01.1 presents the results of geohydrologic investigations on a 1,664-foot-deep core hole drilled in the Bradford County part of the Gleason 7.5-minute quadrangle in north-central Pennsylvania. In the text, the authors discuss their methods of investigation, summarize physical and analytical results, and place those results in context. Four...
Authors
Dennis W. Risser, John H. Williams, Kristen L. Hand, Rose-Anna Behr, Antonette K. Markowski
USGS and partner scientists are investigating water availability, use, quality, and ecology associated with development of shale-gas energy resources in Pennsylvania.
Shale-gas development in Pennsylvania is focused on the Marcellus Shale. USGS is helping understand potential and actual impacts on water resources and ecosystems.
Media
Sources/Usage: Public Domain. View Media Details
Media
Sources/Usage: Public Domain. View Media Details
Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania, USA Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania, USA
Factors affecting groundwater quality used for domestic supply within the Marcellus Shale footprint in north-central and north-east Pennsylvania are identified using a combination of spatial, statistical, and geochemical modeling. Untreated groundwater, sampled during 2011–2017 from 472 domestic wells within the study area, exhibited wide ranges in pH (4.5–9.3), total dissolved solids...
Authors
Charles A. Cravotta, Lisa A. Senior, Matthew D. Conlon
Filter Total Items: 28
Estimation of methane concentrations and loads in groundwater discharge to Sugar Run, Lycoming County, Pennsylvania Estimation of methane concentrations and loads in groundwater discharge to Sugar Run, Lycoming County, Pennsylvania
A stream-sampling study was conducted to estimate methane concentrations and loads in groundwater discharge to a small stream in an active shale-gas development area of northeastern Pennsylvania. Grab samples collected from 15 streams in Bradford, Lycoming, Susquehanna, and Tioga Counties, Pa., during a reconnaissance survey in May and June 2013 contained dissolved methane concentrations...
Authors
Victor M. Heilweil, Dennis W. Risser, Randall W. Conger, Paul L. Grieve, Scott A. Hynek
Dissolved methane in groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12 Dissolved methane in groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12
The prospect of natural gas development from the Marcellus and Utica Shales has raised concerns about freshwater aquifers being vulnerable to contamination. Well owners are asking questions about subsurface methane, such as, “Does my well water have methane and is it safe to drink the water?” and “Is my well system at risk of an explosion hazard associated with a combustible gas like...
Authors
William M. Kappel
Water resources and shale gas/oil production in the Appalachian Basin: critical issues and evolving developments Water resources and shale gas/oil production in the Appalachian Basin: critical issues and evolving developments
Unconventional natural gas and oil resources in the United States are important components of a national energy program. While the Nation seeks greater energy independence and greener sources of energy, Federal agencies with environmental responsibilities, state and local regulators and water-resource agencies, and citizens throughout areas of unconventional shale gas development have...
Authors
William M. Kappel, John H. Williams, Zoltan Szabo
Baseline groundwater quality from 20 domestic wells in Sullivan County, Pennsylvania, 2012 Baseline groundwater quality from 20 domestic wells in Sullivan County, Pennsylvania, 2012
Water samples were collected from 20 domestic wells during August and September 2012 and analyzed for 47 constituents and properties, including nutrients, major ions, metals and trace elements, radioactivity, and dissolved gases, including methane and radon-222. This study, done in cooperation with the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic...
Authors
Ronald A. Sloto
Landscape consequences of natural gas extraction in Fayette and Lycoming Counties, Pennsylvania, 2004–2010 Landscape consequences of natural gas extraction in Fayette and Lycoming Counties, Pennsylvania, 2004–2010
Increased demands for cleaner burning energy, coupled with the relatively recent technological advances in accessing unconventional hydrocarbon-rich geologic formations, have led to an intense effort to find and extract natural gas from various underground sources around the country. One of these sources, the Marcellus Shale, located in the Allegheny Plateau, is currently undergoing...
Authors
E.T. Slonecker, L.E. Milheim, C.M. Roig-Silva, A.R. Malizia, B.H. Gillenwater
Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus shale gas development, Bradford County, Pennsylvania Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus shale gas development, Bradford County, Pennsylvania
Open-File Miscellaneous Investigation 13–01.1 presents the results of geohydrologic investigations on a 1,664-foot-deep core hole drilled in the Bradford County part of the Gleason 7.5-minute quadrangle in north-central Pennsylvania. In the text, the authors discuss their methods of investigation, summarize physical and analytical results, and place those results in context. Four...
Authors
Dennis W. Risser, John H. Williams, Kristen L. Hand, Rose-Anna Behr, Antonette K. Markowski