Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
John Clune, PhD
John Clune is a Research Hydrologist who has worked at the Pennsylvania Water Science Center since 2007.
My core research is focused on understanding
- the environmental drivers and responses of nutrients and sediment in streams with an emphasis on the effectiveness of conservation practices, and
- the geochemistry of groundwater focusing on the quality of drinking water for the protection of public health.
Professional Experience
Adjunct professor for stream ecology at York College, Pennsylvania.
Provided research for the National Park Service (Grand Teton), US Army Corps of Engineers, University of Pittsburgh, Queens University Belfast, UTC Pratt and Whitney, and Lackawanna Conservation District.
Education and Certifications
Ph.D. Forest Resources, 2021, Penn State University
Dissertation: Toward Development of Nutrient Criteria for Streams of PennsylvaniaM.S. Biology, 2008, East Stroudsburg University
Thesis: Nutrient Supply Rates Relationships for Primary Production of Shallow Streams in the Mid-Atlantic StatesB.S. Civil Engineering, 2000, University of Pittsburgh
Science and Products
Water Quality Monitoring to Inform Conservation Management, Fishing Creek, Clinton County, Pennsylvania
Sediment and Stream Health - Pennsylvania
Monitoring the Effectiveness of Conservation Practices in Small Agricultural Watersheds
Pennsylvania and the Chesapeake Bay Watershed
Summarizing Science to Inform Management in the Chesapeake Bay Watershed
Science to Inform Management Priorities from Loads to Endpoints (SIMPLE)
Sediment Response of Stream Restoration Practices, Turtle Creek, Union County, Pennsylvania
USGS Chesapeake Publication Receives National Award for Superior Communication Product
Tracking Status and Trends in Seven Key Indicators of River and Stream Condition in the Chesapeake Bay Watershed
Susquehanna River and Basin
Greatest Opportunities for Future Nitrogen Reductions to the Chesapeake Bay Watershed are in Developed and Agricultural Areas
Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania
Compilation of multi-agency water temperature observations for streams within the Chesapeake Bay watershed
Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050
Compilation of data not available in the National Water Information System for domestic wells sampled by the U.S. Geological Survey in Clinton County, Pennsylvania, May-September 2017
Compilation of data not available in the National Water Information System for domestic wells sampled by the U.S. Geological Survey in Bradford County, Pennsylvania, May-August 2016
Elevation and Pebble Count Data for 5 New Sites in Glaciated Setting of Pennsylvania and Southern New York, 2016
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Little Conewago Creek is a creek in Lebanon County, Pennsylvania. Its 5 square mile watershed contains a mixture of animal and crop agricultural activities.
Little Conewago Creek is a creek in Lebanon County, Pennsylvania. Its 5 square mile watershed contains a mixture of animal and crop agricultural activities.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
USGS Hydrologist Hilary Dozier (formerly Abraham) measuring stream discharge during sampling, to allow calculation of loads, in Fishing Creek, Logan Township, Clinton County, Pennsylvania, just below the Logan Mills Covered Bridge (John Clune, USGS).
USGS Hydrologist Hilary Dozier (formerly Abraham) measuring stream discharge during sampling, to allow calculation of loads, in Fishing Creek, Logan Township, Clinton County, Pennsylvania, just below the Logan Mills Covered Bridge (John Clune, USGS).
Complex hydrology and variability of nitrogen sources in a karst watershed
Evaluating water-quality trends in agricultural watersheds prioritized for management-practice implementation
Legacy sediment as a potential source of orthophosphate: Preliminary conceptual and geochemical models for the Susquehanna River, Chesapeake Bay watershed, USA
Nutrient pollution from agriculture and urban areas plus acid mine drainage (AMD) from legacy coal mines are primary causes of water-quality impairment in the Susquehanna River, which is the predominant source of freshwater and nutrients entering the Chesapeake Bay. Recent increases in the delivery of dissolved orthophosphate (PO4) from the river to the bay may be linked to long-term increases in
Your land, your water—Using research to guide conservation practices on local farms in the Chesapeake Bay watershed
Tracking status and trends in seven key indicators of stream health in the Chesapeake Bay watershed
Nitrogen in the Chesapeake Bay watershed—A century of change, 1950–2050
Groundwater quality in relation to drinking water health standards and geochemical characteristics for 54 domestic wells in Clinton County, Pennsylvania, 2017
Drinking water health standards comparison and chemical analysis of groundwater for 72 domestic wells in Bradford County, Pennsylvania, 2016
Comparison of regression relations of bankfull discharge and channel geometry for the glaciated and nonglaciated settings of Pennsylvania and southern New York
Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; and Di
Sources of fine-grained sediment in the Linganore Creek watershed, Frederick and Carroll Counties, Maryland, 2008-10
Residence time, chemical and isotopic analysis of nitrate in the groundwater and surface water of a small agricultural watershed in the Coastal Plain, Bucks Branch, Sussex County, Delaware
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Assessing stream sediment conditions in Chester County, PA
This geonarrative describes the sediment and turbidity monitoring conducted as part of the Chester County - U.S. Geological Survey Cooperative Water Resources Program.
Science and Products
Water Quality Monitoring to Inform Conservation Management, Fishing Creek, Clinton County, Pennsylvania
Sediment and Stream Health - Pennsylvania
Monitoring the Effectiveness of Conservation Practices in Small Agricultural Watersheds
Pennsylvania and the Chesapeake Bay Watershed
Summarizing Science to Inform Management in the Chesapeake Bay Watershed
Science to Inform Management Priorities from Loads to Endpoints (SIMPLE)
Sediment Response of Stream Restoration Practices, Turtle Creek, Union County, Pennsylvania
USGS Chesapeake Publication Receives National Award for Superior Communication Product
Tracking Status and Trends in Seven Key Indicators of River and Stream Condition in the Chesapeake Bay Watershed
Susquehanna River and Basin
Greatest Opportunities for Future Nitrogen Reductions to the Chesapeake Bay Watershed are in Developed and Agricultural Areas
Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania
Compilation of multi-agency water temperature observations for streams within the Chesapeake Bay watershed
Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050
Compilation of data not available in the National Water Information System for domestic wells sampled by the U.S. Geological Survey in Clinton County, Pennsylvania, May-September 2017
Compilation of data not available in the National Water Information System for domestic wells sampled by the U.S. Geological Survey in Bradford County, Pennsylvania, May-August 2016
Elevation and Pebble Count Data for 5 New Sites in Glaciated Setting of Pennsylvania and Southern New York, 2016
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.
Little Conewago Creek is a creek in Lebanon County, Pennsylvania. Its 5 square mile watershed contains a mixture of animal and crop agricultural activities.
Little Conewago Creek is a creek in Lebanon County, Pennsylvania. Its 5 square mile watershed contains a mixture of animal and crop agricultural activities.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
Narrated presentation that provides a unique, long-term perspective (1950-2050) of the major drivers of nitrogen change up to the present, and forecasts how they may affect nitrogen into the future for the Chesapeake Bay watershed. Information is based off of U.S. Geological Survey Circular 1486.
USGS Hydrologist Hilary Dozier (formerly Abraham) measuring stream discharge during sampling, to allow calculation of loads, in Fishing Creek, Logan Township, Clinton County, Pennsylvania, just below the Logan Mills Covered Bridge (John Clune, USGS).
USGS Hydrologist Hilary Dozier (formerly Abraham) measuring stream discharge during sampling, to allow calculation of loads, in Fishing Creek, Logan Township, Clinton County, Pennsylvania, just below the Logan Mills Covered Bridge (John Clune, USGS).
Complex hydrology and variability of nitrogen sources in a karst watershed
Evaluating water-quality trends in agricultural watersheds prioritized for management-practice implementation
Legacy sediment as a potential source of orthophosphate: Preliminary conceptual and geochemical models for the Susquehanna River, Chesapeake Bay watershed, USA
Nutrient pollution from agriculture and urban areas plus acid mine drainage (AMD) from legacy coal mines are primary causes of water-quality impairment in the Susquehanna River, which is the predominant source of freshwater and nutrients entering the Chesapeake Bay. Recent increases in the delivery of dissolved orthophosphate (PO4) from the river to the bay may be linked to long-term increases in
Your land, your water—Using research to guide conservation practices on local farms in the Chesapeake Bay watershed
Tracking status and trends in seven key indicators of stream health in the Chesapeake Bay watershed
Nitrogen in the Chesapeake Bay watershed—A century of change, 1950–2050
Groundwater quality in relation to drinking water health standards and geochemical characteristics for 54 domestic wells in Clinton County, Pennsylvania, 2017
Drinking water health standards comparison and chemical analysis of groundwater for 72 domestic wells in Bradford County, Pennsylvania, 2016
Comparison of regression relations of bankfull discharge and channel geometry for the glaciated and nonglaciated settings of Pennsylvania and southern New York
Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; and Di
Sources of fine-grained sediment in the Linganore Creek watershed, Frederick and Carroll Counties, Maryland, 2008-10
Residence time, chemical and isotopic analysis of nitrate in the groundwater and surface water of a small agricultural watershed in the Coastal Plain, Bucks Branch, Sussex County, Delaware
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Assessing stream sediment conditions in Chester County, PA
This geonarrative describes the sediment and turbidity monitoring conducted as part of the Chester County - U.S. Geological Survey Cooperative Water Resources Program.