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.
Eliza L. Gross
Eliza works for the USGS National Geospatial Program as the National Map Liaison to Delaware, New Jersey, New York, Pennsylvania, Puerto Rico, Tennessee, and the Virgin Islands.
National Map Liaisons build connections, provide outreach and education, and foster collaborations and partnerships for key initiatives of the National Geospatial Program
Connect with National Map Liaisons
Connect with National Map Liaisons
National Map Liaisons support users and stakeholders across all 50 states and U.S. territories.
User Engagement Activities
User Engagement Activities
Learn about activities of Eliza and other National Map Liaisons.
As the National Map Liaison to Delaware, New Jersey, New York, Pennsylvania, Puerto Rico, Tennessee, and the Virgin Islands for the USGS National Geospatial Program User Engagement Office, Eliza uses her expertise on National Map products and services to engage with users and stakeholders.
Eliza began her USGS career as a graduate student intern with the Pennsylvania Water Science Center providing mapping and spatial data analysis support for several National Water Quality Assessment projects. She also served as the project chief for studies characterizing the occurrence of arsenic and radon in groundwater using geospatial and statistical analyses and for a study assessing the prevalence of pesticides and nutrients in groundwater through sampling of domestic wells in agricultural areas.
Science and Products
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...
Rapid Deployment Network for Flooding in Pennsylvania
USGS, in cooperation with the Federal Emergency Management Agency (FEMA) Region 3 and the Pennsylvania Department of Transportation (PennDOT), is developing a Rapid Deployment Network (RDN) for monitoring stream levels at currently unmonitored locations in Pennsylvania during flooding. RDN data helps emergency response agencies protect life and property during forecast floods and informs flood...
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...
GIS Data Archive for Selected Studies in Pennsylvania
This is an archive. Visit the USGS National Geospatial Program or the Data Portal links below for current datasets.
Evaluation of Radon in Groundwater and Indoor Air in Pennsylvania
Existing groundwater and indoor air radon-222, hereafter referred to as "radon", concentrations were aggregated and evaluated for 16 geologic units throughout the state of Pennsylvania to provide a better understanding of potential human exposure to radon.
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.
Purging a domestic well to be sampled for radon
A U.S. Geological Survey (USGS) scientist recording water-quality parameters (pH, temperature, and specific conductance) during the purging of a domestic well that was sampled for radon at a site north of Jersey Shore, Pennsylvania.
A U.S. Geological Survey (USGS) scientist recording water-quality parameters (pH, temperature, and specific conductance) during the purging of a domestic well that was sampled for radon at a site north of Jersey Shore, Pennsylvania.
Science and Products
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...
Rapid Deployment Network for Flooding in Pennsylvania
USGS, in cooperation with the Federal Emergency Management Agency (FEMA) Region 3 and the Pennsylvania Department of Transportation (PennDOT), is developing a Rapid Deployment Network (RDN) for monitoring stream levels at currently unmonitored locations in Pennsylvania during flooding. RDN data helps emergency response agencies protect life and property during forecast floods and informs flood...
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...
GIS Data Archive for Selected Studies in Pennsylvania
This is an archive. Visit the USGS National Geospatial Program or the Data Portal links below for current datasets.
Evaluation of Radon in Groundwater and Indoor Air in Pennsylvania
Existing groundwater and indoor air radon-222, hereafter referred to as "radon", concentrations were aggregated and evaluated for 16 geologic units throughout the state of Pennsylvania to provide a better understanding of potential human exposure to radon.
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.
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.
Purging a domestic well to be sampled for radon
A U.S. Geological Survey (USGS) scientist recording water-quality parameters (pH, temperature, and specific conductance) during the purging of a domestic well that was sampled for radon at a site north of Jersey Shore, Pennsylvania.
A U.S. Geological Survey (USGS) scientist recording water-quality parameters (pH, temperature, and specific conductance) during the purging of a domestic well that was sampled for radon at a site north of Jersey Shore, Pennsylvania.