Unified Interior Regions

Pennsylvania

States L2 Landing Page Tabs

Our water-resources roots date back to the late 1800's, with the initiation of streamflow gaging on the Delaware and Susquehanna Rivers and evaluation of groundwater resources in various parts of the Commonwealth. Today Pennsylvania Water Science Center's cadre of nearly 100 scientists, technicians and support staff throughout the state collect scientific data to inform the public.

News

Date published: October 3, 2019

Mapping Challenge: Summary Results for City / Town Hall Structures in NJ, NY & PA

Our Mid-Atlantic City / Town Hall mapping challenge is now finished!!  A huge shout-out to all of our volunteers who participated in this challenge!  Here are the summary results and a timelapse our volunteer contributions.

Date published: October 3, 2019

USGS Estimates 214 trillion Cubic Feet of Natural Gas in Appalachian Basin Formations

The Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain an estimated mean of 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas, according to new USGS assessments.

Date published: September 26, 2019

FINISHED!! Mapping Challenge for City / Town Hall Structures in NJ, NY & PA

FINISHED!! Our Mapping Challenge for City / Town Hall Structures in the Mid-Atlantic is now complete!

Filter Total Items: 43
Satellite photo showing algal bloom in Lake Erie
Date Published: January 14, 2020
Status: Active

Harmful Algal Blooms in Pennsylvania

The U.S. Geological Survey is collaborating with State and local partners to develop models that provide real-time estimates of Escherichia coli (E. coli) (for pathogens) and (or) microcystin (for freshwater cyanotoxins) levels at Great Lakes beaches and drinking-water intakes. 

Contacts: Tammy Zimmerman
Girl Drinking Water
Date Published: October 7, 2019
Status: Active

Groundwater Availability and Use

The USGS Pennsylvania Water Science Center helps water providers assess the availability of groundwater for use in homes, on farms, and in industrial activities. 

Contacts: Brandon Fleming
Team of scientists stand in front of outcrop
Date Published: June 4, 2019
Status: Active

Appalachian Basin Geologic Mapping Project

The Appalachian Basin Geologic Mapping Project performs geologic mapping at local and regional scales, and geologic research in The Valley and Ridge and Appalachian Plateaus physiographic provinces. These provinces include parts of 11 states and mainly borders the Blue Ridge / Piedmont and North Interior Lowlands Provinces. Two states have Valley and Ridge geology only (GA, NJ), two have...

Snow-laden Hemlocks on Little Yellow Creek. A mix of shadows and reflections are draped on the creek.
Date Published: December 19, 2018
Status: Active

Surface Water-Quality Monitoring Network (WQN)

Overview

Pennsylvania’s Statewide Surface Water-Quality Monitoring Network (WQN) currently consists of 124 sites that are sampled between 6 and 20 times a year. Chemical analysis includes nutrient, major ions, and selected metals. Pesticide sampling is conducted twice a year at 5 locations. Biological sampling for benthic macroinvertebrates is conducted annually at 80 sites.

The...

Eastern Basins of US Oil and Gas Assessments
Date Published: December 19, 2018
Status: Active

Eastern Basins Oil and Gas Assessments

The USGS has conducted several assessments of undiscovered oil and gas in formations in the Blue Ridge Thrust Belt (5068), Piedmont Province (5069), Atlantic Coastal Plain Province (5070), and the New England Province (5072).  These basins are generally east of the Appalachian Basin...

Photograph of road cut showing fractured sedimentary rocks
Date Published: November 20, 2018
Status: Active

Contaminants in groundwater near North Penn Area Superfund sites

USGS has investigated groundwater flow and contaminant transport in the vicinity of Superfund sites in Montgomery County, southeastern Pennsylvania, in cooperation with EPA. Additional cooperative support for these investigations has been provided by the Pennsylvania Department of Environmental Protection, Montgomery County, and local government agencies.

Contacts: Lisa A Senior
Quarry photo with dipping sedimentary rock, SE Penn. Newark Basin
Date Published: November 20, 2018
Status: Active

Contaminants in groundwater near former Navy bases in southeastern Pennsylvania

USGS has investigated groundwater flow and contaminant transport in the vicinity of former Navy bases in Bucks and Montgomery Counties, southeastern Pennsylvania, in cooperation with the U.S. Navy. Additional cooperative support for these investigations has been provided by the U.S. Environmental Protection Agency, Pennsylvania Department of Environmental Protection, Bucks and Montgomery...

Contacts: Lisa A Senior
County map of Pennsylvania showing 27 well sites constituting the Groundwater Quality Monitoring Network (GWMN)
Date Published: November 16, 2018
Status: Active

Groundwater Quality Monitoring Network

Overview

Pennsylvania’s Statewide Fixed Station Groundwater Quality Monitoring Network (GWMN) currently consists of a set of 27 groundwater wells located in 26 counties that are sampled twice a year for a host of chemical constituents. The GWMN was established to characterize the ambient groundwater quality of Pennsylvania aquifers and to provide a temporal dataset to address seasonal...

Contacts: Joe Duris
Image of the Blue Ridge taken from the top of Stone Mountain
Date Published: September 27, 2018
Status: Active

Piedmont and Blue Ridge Project

The Piedmont and Blue Ridge Project is a geologic mapping project supported by the USGS National Cooperative Geologic Mapping Program. The Piedmont Blue Ridge Project aims to understand the geologic framework and tectonic evolution of terranes and basins in the Appalachian Piedmont and Blue Ridge, and their significance for water, mineral and energy resources, natural hazards, and engineering/...

Appalachian Basin Oil and Gas Assessments Map
Date Published: July 19, 2018
Status: Active

Appalachian Basin Oil and Gas Assessments

The USGS has conducted numerous assessments of undiscovered oil and gas in the Appalachian Basin, including studies of the Marcellus Shale. The region extends from Alabama to Maine. The following is an overview of the assessments:

  • 2019 Ordovician Point Pleasant Formation and Utica Shale (FS 2019-3044)
  • 2019
  • ...
Filter Total Items: 14
USGS
October 2, 2019

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2019. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the conte

USGS
October 2, 2019

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum Syste

map of northeastern U.S. with clusters of 3 colored dots and a smaller bar graph
April 9, 2019

Maximum likelihood logistic regression (MLLR) is used to estimate drought probabilities for selected Northeast rivers and streams. Winter streamflows are used to estimate the chance of hydrologic drought during summer months. This application allows the display and query of these drought streamflow probabilities for Northeastern streams.

Interactive map and chart highlighting USGS Domestic Continuous (Unconventional) Oil & Gas Assessments, 2000-Present
August 28, 2018

Interactively explore assessment summary information for continuous (unconventional) assessments conducted at the USGS from 2000-2018. The assessment results data used to generate this visualization can be downloaded here in Excel Format.  These data represent all assessment results for Continuous Assessments only from 2000-2018.

Structure datasets for the nation from The National Map
April 20, 2016

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations.

3D Lidar Point Cloud Image of San Francisco Bay and Golden Gate Bridge
April 19, 2016

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and Fall.

Filter Total Items: 5
Map of potential radon exposure from groundwater and indoor air in Pennsylvania
May 1, 2019

The thumpnail map is figure 7 in 

Gross, E.L., 2017, Evaluation of radon occurrence in groundwater from 16 geologic units in Pennsylvania, 1986–2015, with application to potential radon exposure from groundwater and indoor air: U.S. Geological Survey Scientific Investigations Report 2017–5018, 24 p., https://doi.org/10.3133/sir20175018.

Digital map data for this and other maps are available.

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

USGS Storm-Tide Mapper and Data Services
March 8, 2016

The USGS Storm Tide Mapper is a tool for viewing, analyzing, and accessing storm tide data collected during and after hurricanes and Nor’easters. The USGS Storm Tide Mapper will continue to provide a unified and consistent source of real-time and archived storm-tide data.

Filter Total Items: 32
Publication Thumbnail
Year Published: 2019

A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013

Executive SummaryThe New York-Pennsylvania area has a long history of hydrocarbon extraction, and the addition of shale gas extraction methods contributes to landscape disturbance borne by previously developed oil and non-shale gas resources. The main unconventional extraction method used to extract shale gas from the Marcellus Shale located in...

Roig-Silva, Coral M.; Milheim, Lesley E.; Slonecker, E. Terrence; Kalaly, Siddiq; Chestnut, Joseph
Roig-Silva, C.M., Milheim, L.E., Slonecker, E.T., Kalaly, S., and Chestnut, J., 2019, A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013: U.S. Geological Survey Scientific Investigations Report 2019–5096, 23 p., https://doi.org/10.3133/sir20195096.

Publication Thumbnail
Year Published: 2019

Report of the River Master of the Delaware River for the period December 1, 2009–November 30, 2010

A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes diversion of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New York City, to be made under the...

Russell, Kendra L.; Ockerman, Darwin; Krejmas, Bruce E.; Paulachok, Gary N.; Mason,, Robert R.
Russell, K.L., Ockerman, D., Krejmas, B.E., Paulachok, G.N., and Mason, R.R., Jr., 2019, Report of the River Master of the Delaware River for the period December 1, 2009–November 30, 2010: U.S. Geological Survey Open-File Report 2019–1093, 128 p., https://doi.org/10.3133/ofr20191093.

Publication Thumbnail
Year Published: 2019

Response of nitrogen loading to the Chesapeake Bay to source reduction and land use change scenarios: A SPARROW‐informed analysis

In response to concerns regarding the health of streams and receiving waters, the United States Environmental Protection Agency established a total maximum daily load for nitrogen in the Chesapeake Bay watershed for which practices must be in place by 2025 resulting in an expected 25% reduction in load from 2009 levels. The response of total...

Miller, Matthew; Capel, Paul D.; Garcia, Ana M.; Ator, Scott W.

Publication Thumbnail
Year Published: 2019

Assessment of undiscovered continuous oil and gas resources in the Upper Ordovician Point Pleasant Formation and Utica Shale of the Appalachian Basin Province, 2019

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable continuous mean resources of 1.8 billion barrels of oil and 117.2 trillion cubic feet of gas in the Upper Ordovician Point Pleasant Formation and Utica Shale of the Appalachian Basin Province.

Enomoto, Catherine B.; Trippi, Michael H.; Higley, Debra K.; Drake, Ronald M.; Gaswirth, Stephanie B.; Mercier, Tracey J.; Brownfield, Michael E.; Leathers-Miller, Heidi M.; Le, Phuong A.; Marra, Kristen R.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Schenk, Christopher J.
Enomoto, C.B., Trippi, M.H., Higley, D.K., Drake, R.M., II, Gaswirth, S.B., Mercier, T.J., Brownfield, M.E., Leathers-Miller, H.M., Le, P.A., Marra, K.R., Tennyson, M.E., Woodall, C.A., and Schenk, C.J., 2019, Assessment of undiscovered continuous oil and gas resources in the Upper Ordovician Point Pleasant Formation and Utica Shale of the Appalachian Basin Province, 2019: U.S. Geological Survey Fact Sheet 2019–3044, 2 p., https://doi.org/10.3133/fs20193044.

Publication Thumbnail
Year Published: 2019

Geologic cross section A–A′ through the Appalachian basin from the southern margin of the Ontario Lowlands province, Genesee County, western New York, to the Valley and Ridge province, Lycoming County, north-central Pennsylvania

IntroductionGeologic cross section A–A′  is the fifth in a series of cross sections constructed by the U.S. Geological Survey (USGS) to document and improve understand­ing of the geologic framework and petroleum systems of the Appalachian basin. Cross section A–A′ provides a regional view of the structural and stratigraphic frame­...

Trippi, Michael H.; Ryder, Robert T. ; Enomoto, Catherine B.
Trippi, M.H., Ryder, R.T., and Enomoto, C.B., 2019, Geologic cross section A–A′ through the Appalachian basin from the southern margin of the Ontario Lowlands province, Genesee County, western New York, to the Valley and Ridge province, Lycoming County, north-central Pennsylvania: U.S. Geological Survey Scientific Investigations Map 3425, 2 sheets, 74-p. pamphlet, https://doi.org/10.3133/sim3425.

Publication Thumbnail
Year Published: 2019

Hydrocarbons in upland groundwater, Marcellus Shale Region, Northeastern Pennsylvania and Southern New York, USA

Water samples from 50 domestic wells located <1 km (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for chemical, isotopic, and groundwater-age tracers. Uplands were targeted because natural mixing with brine and hydrocarbons from deep formations is less common in those areas...

McMahon, Peter B.; Lindsey, Bruce D.; Conlon, Matthew D.; Hunt, Andrew G.; Belitz, Kenneth; Jurgens, Bryant; Varela, Brian

Publication Thumbnail
Year Published: 2019

Toward explaining nitrogen and phosphorus trends in Chesapeake Bay tributaries, 1992-2012

Understanding trends in stream chemistry is critical to watershed management, and often complicated by multiple contaminant sources and landscape conditions changing over varying time scales. We adapted spatially-referenced regression (SPARROW) to infer causes of recent nutrient trends in Chesapeake Bay tributaries by relating observed fluxes...

Ator, Scott; Garcia, Ana M.; Schwarz, Gregory E.; Blomquist, Joel; Sekellick, Andrew

Publication Thumbnail
Year Published: 2019

Spatial and Temporal Patterns of Best Management Practice Implementation in the Chesapeake Bay Watershed, 1985–2014

Efforts to restore water quality in Chesapeake Bay and its tributaries often include extensive Best Management Practice (BMP) implementation on agricultural and developed lands. These BMPs include a variety of methods to reduce nutrient and sediment loads, such as cover crops, conservation tillage, urban filtering systems, and other practices....

Sekellick, Andrew J.; Devereux, Olivia H.; Keisman, Jennifer L.D.; Sweeney, Jeffrey S.; Blomquist, Joel D.
Sekellick, A.J., Devereux, O.H., Keisman, J.L.D., Sweeney, J.S., and Blomquist, J.D., 2019, Spatial and temporal patterns of Best Management Practice implementation in the Chesapeake Bay watershed, 1985–2014: U.S. Geological Survey Scientific Investigations Report 2018–5171, 25 p., https://doi.org/10.3133/sir20185171.

Publication Thumbnail
Year Published: 2016

Estimated use of water in the Delaware River Basin in Delaware, New Jersey, New York, and Pennsylvania, 2010

The Delaware River Basin (DRB) was selected as a Focus Area Study in 2011 by the U.S. Geological Survey (USGS) as part of the USGS National Water Census. The National Water Census is a USGS research program that focuses on national water availability and use and then develops new water accounting tools and assesses water availability at both the...

Hutson, Susan S.; Linsey, Kristin S.; Ludlow, Russell A.; Reyes, Betzaida; Shourds, Jennifer L.
Hutson, S.S., Linsey, K.S., Ludlow, R.A., Reyes, Betzaida, and Shourds, J.L., 2016, Estimated use of water in the Delaware River Basin in Delaware, New Jersey, New York, and Pennsylvania, 2010: U.S. Geological Survey Scientific Investigations Report 2015–5142, 76 p., http://dx.doi.org/10.3133/sir20155142.

Publication Thumbnail
Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

Publication Thumbnail
Year Published: 2015

Summary of hydrologic modeling for the Delaware River Basin using the Water Availability Tool for Environmental Resources (WATER)

The Water Availability Tool for Environmental Resources (WATER) is a decision support system for the nontidal part of the Delaware River Basin that provides a consistent and objective method of simulating streamflow under historical, forecasted, and managed conditions. In order to quantify the uncertainty associated with these simulations, however...

Williamson, Tanja N.; Lant, Jeremiah G.; Claggett, Peter R.; Nystrom, Elizabeth A.; Milly, Paul C.D.; Nelson, Hugh L.; Hoffman, Scott A.; Colarullo, Susan J.; Fischer, Jeffrey M.
Williamson, T.N., Lant, J.G., Claggett, P.R., Nystrom, E.A., Milly, P.C.D., Nelson, H.L., Hoffman, S.A., Colarullo, S.J., and Fischer, J.M., 2015, Summary of hydrologic modeling for the Delaware River Basin using the Water Availability Tool for Environmental Resources (WATER): U.S. Geological Survey Scientific Investigations Report 2015–5143, 68 p., http://dx.doi.org/10.3133/sir20155143.

Publication Thumbnail
Year Published: 2015

User manuals for the Delaware River Basin Water Availability Tool for Environmental Resources (DRB–WATER) and associated WATER application utilities

The Water Availability Tool for Environmental Resources (WATER) is a decision support system (DSS) for the nontidal part of the Delaware River Basin (DRB) that provides a consistent and objective method of simulating streamflow under historical, forecasted, and managed conditions. WATER integrates geospatial sampling of landscape characteristics,...

Williamson, Tanja N.; Lant, Jeremiah G.
Williamson, T.N., and Lant, J.G., 2015, User manuals for the Delaware River Basin Water Availability Tool for Environmental Resources (DRB–WATER) and associated WATER application utilities: U.S. Geological Survey Open-File Report 2015–1196, 32 p., http://dx.doi.org/10.3133/ofr20151196.

Filter Total Items: 1
Pennsylvania Baseline Streamflow Estimator Screen Capture
September 26, 2012

Estimation of Baseline Daily Mean Streamflows for Ungaged Locations on Pennsylvania Streams, Water Years 1960–2008

Filter Total Items: 25
Screenshot of Chester County (PA) Monitoring Network web app
January 15, 2020

USGS & Chester County PA cooperate on long-term hydrologic monitoring

Screenshot of the Chester County (PA) Monitoring Network web app.

May 2, 2019

Phragmites Adaptive Management Framework: Model Overview

This animation is the third video in a series explaining different aspects of the Phragmites Adaptive Management Framework (PAMF). This video focuses on the machine learning model that PAMF uses to systematically learn from participant's data and then provide site-specific management guidance in return. More information about PAMF can be found at our websites:

...
Quarry photo with dipping sedimentary rock, SE Penn. Newark Basin
October 5, 2018

Quarry walls showing dipping sedimentary rocks of Newark Basin, SE PA

Photograph showing dipping sedimentary rocks of the Newark Basin in southeast Pennsylvania. Taken during the 2018 Field Conference of Pennsylvania Geologists. 

This photo shows one of 8 storm sensors deployed in Pennsylvania to monitor the potential effects Hurricane Florence could have
September 14, 2018

Strom sensor deployed in Pennsylvania for Hurricane Florence

This photo shows one of 8 storm sensors deployed in Pennsylvania to monitor the potential effects Hurricane Florence could have on already high rivers across the state. Photo by Matthew Gyves, USGS. 

June 1, 2018

PAMF Participation Cycle

This video describes the annual participation cycle for those enrolled in the Phragmites Adaptive Management Framework (PAMF). PAMF encompasses three annual steps including enrolling, monitoring and managing. As participants employ management actions and submit monitoring reports they will receive management guidance generated by the PAMF model, which provides the most

...
June 1, 2018

PAMF Participation Cycle (Audio-Described)

This video describes the annual participation cycle for those enrolled in the Phragmites Adaptive Management Framework (PAMF). PAMF encompasses three annual steps including enrolling, monitoring and managing. As participants employ management actions and submit monitoring reports they will receive management guidance generated by the PAMF model, which provides the most

...
Hydrologist collecting a water sample from a domestic well
August 9, 2017

Collecting a sample of untreated groundwater from a domestic well

A USGS hydrologist collects a sample of untreated groundwater from a domestic well in Susquehanna County, Pennsylvania.  Learn more about domestic wells here.

Animation of land change in Chester County, Pennsylvania
December 31, 2016

Chester County, Pennsylvania Land Change Animation

Chester County, Pennsylvania has always been close-in hinterland of the city of Philadelphia. As the metropolitan area expanded, Chester County became one of the suburban frontiers of Philadelphia, with developed land cover concentrated along transportation corridors that were first railroad lines and later U.S. and state highways, such as U.S. 30 and more recently I-76 (

...
June 15, 2016

The Phragmites Adaptive Management Framework (PAMF)

This is an introductory video to an adaptive management approach for the invasive plant Phragmites australis in the Great Lakes basin. An adaptive management framework is an iterative process of robust decision making aimed at reducing uncertainty over time, for a variety of stakeholders with differing backgrounds and interests, via system monitoring.

Also see: 

...
USGS' Brian Selck samples a private well in Lycoming County, PA
December 31, 2014

Sampling a private well in Lycoming County, Pennsylvania

Brian Selck, a USGS National Association of Geoscience Teachers intern, collects a water level measurement from a domestic well at a site north of Jersey Shore in Lycoming County, Pennsylvania, June 2014.

Filter Total Items: 108
TNMCorps Mapping Challenge: THUMBNAIL Timelapse of Mid-Atlantic City/Town Halls
October 3, 2019

Our Mid-Atlantic City / Town Hall mapping challenge is now finished!!  A huge shout-out to all of our volunteers who participated in this challenge!  Here are the summary results and a timelapse our volunteer contributions.

Image shows a map of the Eastern United States with the boundaries of the Marcellus Shale superimposed
October 3, 2019

The Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain an estimated mean of 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas, according to new USGS assessments.

TNMCorps Mapping Challenge: City / Town Halls in PA, NJ, & NY
September 26, 2019

FINISHED!! Our Mapping Challenge for City / Town Hall Structures in the Mid-Atlantic is now complete!

Domestic well in front of house in rural area
July 1, 2019

A new USGS study reports that shale-gas production in northern Pennsylvania has not currently caused widespread hydrocarbon contamination in the upland aquifer zone used for domestic supply.

map of northeastern U.S. with clusters of 3 colored dots and a smaller bar graph
April 9, 2019

Maximum likelihood logistic regression (MLLR) is used to estimate drought probabilities for selected Northeast rivers and streams. Winter streamflows are used to estimate the chance of hydrologic drought during summer months. This application allows the display and query of these drought streamflow probabilities for Northeastern streams.

dark space with golden solar flare
March 5, 2019

A new report and map published by the U.S. Geological Survey provides critical insight to electric power grid operators across the northeastern United States in the event of a once-per-century magnetic superstorm.  

Two osprey nestlings in the Delaware Estuary
July 10, 2018

Lower levels of environmental contaminants—including pesticides, flame retardants and other pollutants—were recently found in osprey eggs in the Delaware Estuary compared to those tested from the 1970s through the early 2000s. 

A map of Pennsylvania indicating radon concentrations of water samples collected during a multi-year groundwater radon study. Ma
May 11, 2017

A new U.S. Geological Survey study has discovered high levels of radon in wells across certain areas of Pennsylvania.

Farms, forests and rolling hills in Lycoming County, PA
March 6, 2017

Tests of 75 private drinking water wells in Lycoming County, in north-central Pennsylvania, found water from most of the sampled wells contained concentrations of radon that exceeded a proposed, nonbinding health standard for drinking water. Smaller percentages of the wells contained concentrations of arsenic or methane that exceed existing drinking water standards.

Filter Total Items: 51