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Groundwater

Groundwater science for Pennsylvania, or conducted by center staff.

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Groundwater Recharge - Pennsylvania

New baseflow and recharge estimates were published in a USGS data release in 2023 (see 'Data' tab). Recharge is the process of adding water to the saturated zone. Because it is almost impossible to measure directly, recharge is usually estimated by indirect means. Completed USGS studies provide estimates of groundwater recharge in Pennsylvania and methods for estimating recharge in humid regions.
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Groundwater Recharge - Pennsylvania

New baseflow and recharge estimates were published in a USGS data release in 2023 (see 'Data' tab). Recharge is the process of adding water to the saturated zone. Because it is almost impossible to measure directly, recharge is usually estimated by indirect means. Completed USGS studies provide estimates of groundwater recharge in Pennsylvania and methods for estimating recharge in humid regions.
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Contaminants in Groundwater near Superfund sites in Pennsylvania

USGS has investigated groundwater flow and contaminant transport in the vicinity of Superfund and other hazardous-waste sites in Pennsylvania, in cooperation with EPA. Additional cooperative support has been provided by the U.S. Department of Defense, National Park Service, Pennsylvania Department of Environmental Protection, Philadelphia, Bucks, Chester, and Montgomery Counties, and local...
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Contaminants in Groundwater near Superfund sites in Pennsylvania

USGS has investigated groundwater flow and contaminant transport in the vicinity of Superfund and other hazardous-waste sites in Pennsylvania, in cooperation with EPA. Additional cooperative support has been provided by the U.S. Department of Defense, National Park Service, Pennsylvania Department of Environmental Protection, Philadelphia, Bucks, Chester, and Montgomery Counties, and local...
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Groundwater Monitoring in Pennsylvania

Groundwater Monitoring and Tools for Pennsylvania
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Groundwater Monitoring in Pennsylvania

Groundwater Monitoring and Tools for Pennsylvania
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A Field Method to Quantify Chlorinated Solvent Diffusion, Sorption, Abiotic and Biotic Degradation in Low-Permeability Zones

Strategic Environmental Research and Development Program project ER-2533 In chlorinated-solvent-contaminated fractured-sedimentary-rock aquifers, low-permeability (low-K) strata typically act as long-term or secondary sources of contamination to mobile groundwater in the high-permeability fractures. The fate of dissolved trichloroethene (TCE) in the low-K matrix is controlled by abiotic...
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A Field Method to Quantify Chlorinated Solvent Diffusion, Sorption, Abiotic and Biotic Degradation in Low-Permeability Zones

Strategic Environmental Research and Development Program project ER-2533 In chlorinated-solvent-contaminated fractured-sedimentary-rock aquifers, low-permeability (low-K) strata typically act as long-term or secondary sources of contamination to mobile groundwater in the high-permeability fractures. The fate of dissolved trichloroethene (TCE) in the low-K matrix is controlled by abiotic...
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Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions throughout Pennsylvania.
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Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions throughout Pennsylvania.
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Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania

USGS synthesized groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.
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Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania

USGS synthesized groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.
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Accelerating Aquifer Storage & Recovery in the Middle East and North Africa Region

In cooperation with the U.S. Agency for International Development, USGS helped regional partners assess the suitability for managing scarce groundwater resources, and improving water supply, using artificial recharge methods.
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Accelerating Aquifer Storage & Recovery in the Middle East and North Africa Region

In cooperation with the U.S. Agency for International Development, USGS helped regional partners assess the suitability for managing scarce groundwater resources, and improving water supply, using artificial recharge methods.
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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 counties...
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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 counties...
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Pesticides in Pennsylvania Groundwaters

USGS annually samples domestic groundwater wells to characterize pesticides, nutrients, and radon in agricultural areas, in cooperation with the Pennsylvania Department of Agriculture. Beginning in 2021, samples for major ions, trace elements, bacteria, and isotopes will also be collected. A subset of wells will be sampled for per- and polyfluoroalkyl substances (PFAS), emerging industrial...
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Pesticides in Pennsylvania Groundwaters

USGS annually samples domestic groundwater wells to characterize pesticides, nutrients, and radon in agricultural areas, in cooperation with the Pennsylvania Department of Agriculture. Beginning in 2021, samples for major ions, trace elements, bacteria, and isotopes will also be collected. A subset of wells will be sampled for per- and polyfluoroalkyl substances (PFAS), emerging industrial...
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Groundwater Quality of Domestic Supply Wells in Pennsylvania

Most rural residents in Pennsylvania use groundwater from domestic supply wells for drinking, cleaning and other purposes. Some groundwater samples have been analyzed for private purposes, but those results generally are not readily available to the public. Many of the publicly available water-quality samples from rural areas were collected more than 30 years ago. Quality-assured groundwater...
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Groundwater Quality of Domestic Supply Wells in Pennsylvania

Most rural residents in Pennsylvania use groundwater from domestic supply wells for drinking, cleaning and other purposes. Some groundwater samples have been analyzed for private purposes, but those results generally are not readily available to the public. Many of the publicly available water-quality samples from rural areas were collected more than 30 years ago. Quality-assured groundwater...
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Fractured-Rock Test Holes in Areas of Marcellus Shale Gas Development, Pennsylvania

USGS and Pennsylvania Geological Survey analyzed rock cuttings, geophysical logs, water quality, water-bearing zones, gas-isotope, and other data from deep test holes drilled in fractured bedrock in north-central Pennsylvania. The results of this study helped to quantify the depth and character of fresh and saline groundwater in areas of shale-gas exploration and development.
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Fractured-Rock Test Holes in Areas of Marcellus Shale Gas Development, Pennsylvania

USGS and Pennsylvania Geological Survey analyzed rock cuttings, geophysical logs, water quality, water-bearing zones, gas-isotope, and other data from deep test holes drilled in fractured bedrock in north-central Pennsylvania. The results of this study helped to quantify the depth and character of fresh and saline groundwater in areas of shale-gas exploration and development.
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Groundwater Availability and Use in Pennsylvania

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

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