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Photograph: road bridge on right, solar panel, steel box, and antenna attached to bridge, stream water surface lower left.
Shohola Creek near Walker Lake, PA (01432495), streamflow monitoring equipment
Shohola Creek near Walker Lake, PA (01432495), streamflow monitoring equipment
Shohola Creek near Walker Lake, PA (01432495), streamflow monitoring equipment

Shohola Creek near Walker Lake, PA (01432495), streamflow monitoring equipment. (USGS)

A scientist stands on a bridge watching scientific equipment float on a flooded river.
Watts PA flood
Watts PA flood
Watts PA flood

Trent Watts, a USGS hydrologic technician, uses an Acoustic Doppler Current Profiler to measure the amount of water flowing in Perkiomen Creek in Graterford, Pennsylvania, on December 18. USGS photo by Cameron Ensor.

Trent Watts, a USGS hydrologic technician, uses an Acoustic Doppler Current Profiler to measure the amount of water flowing in Perkiomen Creek in Graterford, Pennsylvania, on December 18. USGS photo by Cameron Ensor.

rows of clear plastic bottles filled with blue water, with white caps
Bottled Water
Bottled Water
Bottled Water

New one-half liter bottles of drinking water ("purified water with minerals added for taste"). (Dan Goode, USGS)

New one-half liter bottles of drinking water ("purified water with minerals added for taste"). (Dan Goode, USGS)

Radar image of hurricane Ida over northeastern U.S. and ocean with white swirly clouds and green land with state boundaries.
Screenshot of opening page for geonarrative "Hurricane Ida: U.S. Geological Survey Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida "
Screenshot of opening page for geonarrative "Hurricane Ida: U.S. Geological Survey Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida "
Screenshot of opening page for geonarrative "Hurricane Ida: U.S. Geological Survey Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida "

Screenshot of title page for "Hurricane Ida: USGS Response in Pennsylvania to September 1-2, 2021, Flooding Related to Remnants of Hurricane Ida" geonarrative. 

A map showing locations across Pennsylvania where PFAS was detected in water samples.
Pennsylvania state-wide surface water PFAS study
Pennsylvania state-wide surface water PFAS study
Pennsylvania state-wide surface water PFAS study

This map shows 161 sites across Pennsylvania that were sampled for PFAS concentrations. The color coding indicates PFAS concentration levels at each site. USGS image.

This map shows 161 sites across Pennsylvania that were sampled for PFAS concentrations. The color coding indicates PFAS concentration levels at each site. USGS image.

farm field with dark trees, green leafy crop, foggy sky and yellow sun
Pennsylvania farm field - lightened
Pennsylvania farm field - lightened
Pennsylvania farm field - lightened

Photo of a field near a site in Pennsylvania where USGS staff take groundwater pesticide samples (USGS).

Photo of a field near a site in Pennsylvania where USGS staff take groundwater pesticide samples (USGS).

A 3D aerial view of Norristown, Pennsylvania shows where the Schuylkill River passes through the city.
Distributions: Hazards - Flooding in Norristown, PA during Hurricane Ida September 2021
Distributions: Hazards - Flooding in Norristown, PA during Hurricane Ida September 2021
Distributions: Hazards - Flooding in Norristown, PA during Hurricane Ida September 2021

A 3D aerial view of Norristown, Pennsylvania shows where the Schuylkill River passes through the city. The water in the river is shown in bright blue, while the surrounding city is shown in natural color.

A 3D aerial view of Norristown, Pennsylvania shows where the Schuylkill River passes through the city. The water in the river is shown in bright blue, while the surrounding city is shown in natural color.

photograph of hillside with ferns, brown leaves, and exposed rock with large pebbles and openings between rock layers
Rock, partings, ferns, hillside, Mt. Zion site, Pennsylvania
Rock, partings, ferns, hillside, Mt. Zion site, Pennsylvania
Rock, partings, ferns, hillside, Mt. Zion site, Pennsylvania

Exposed Hellam Conglomerate member of the Chickies Quartzite at East Mount Zion Superfund Site, York County, Pennsylvania. (Lisa Senior, USGS)

Exposed Hellam Conglomerate member of the Chickies Quartzite at East Mount Zion Superfund Site, York County, Pennsylvania. (Lisa Senior, USGS)

Map of the United States showing colored blocks for well density
Density of unplugged orphaned wells in the continental U.S.
Density of unplugged orphaned wells in the continental U.S.
Density of unplugged orphaned wells in the continental U.S.

Map of the continental United States indicating the well density per 100 square mile grid cell of 117,672 unplugged orphaned wells in the 27 states included in the documented orphaned oil and gas well (DOW) dataset. Note the exponential scale of the coloring scheme used to preserve detail across both lower and higher well densities.

Map of the continental United States indicating the well density per 100 square mile grid cell of 117,672 unplugged orphaned wells in the 27 states included in the documented orphaned oil and gas well (DOW) dataset. Note the exponential scale of the coloring scheme used to preserve detail across both lower and higher well densities.

photograph of gray rock with embedded pebbles sitting in a bed of green and red leaves and blue flowers
Quartzite rock, flowering ground cover, East Mount Zion site, York County, Pennsylvania
Quartzite rock, flowering ground cover, East Mount Zion site, York County, Pennsylvania
Quartzite rock, flowering ground cover, East Mount Zion site, York County, Pennsylvania

Boulder of Hellam Conglomerate member of the Chickies Quartzite at East Mount Zion Superfund Site, York County, Pennsylvania. (Lisa Senior, USGS)

Boulder of Hellam Conglomerate member of the Chickies Quartzite at East Mount Zion Superfund Site, York County, Pennsylvania. (Lisa Senior, USGS)

blue sky above curved aggregate dam with water surface, trees, and grass
Survey equipment at Raystown Dam near Huntingdon, Pennsylvania
Survey equipment at Raystown Dam near Huntingdon, Pennsylvania
Survey equipment at Raystown Dam near Huntingdon, Pennsylvania

Survey equipment at Raystown Dam near Huntingdon, Pennsylvania. USGS measures datum (elevation) information as part of monitoring lake level as well as streamflow and stage below the dam. (Victor Cortes, USGS Pennsylvania Water Science Center).

Survey equipment at Raystown Dam near Huntingdon, Pennsylvania. USGS measures datum (elevation) information as part of monitoring lake level as well as streamflow and stage below the dam. (Victor Cortes, USGS Pennsylvania Water Science Center).

The rise and fall of the Delaware River salt front
The Rise and Fall of the Delaware Salt Front
The Rise and Fall of the Delaware Salt Front
The Rise and Fall of the Delaware Salt Front

The rise and fall of the Delaware River salt front. Over time, the location of the salt front moves in response to regional weather patterns, sea level rise, and human impacts. The precise location of the salt front in the Delaware River Basin is based on the location in the river where the average chloride concentration is 250 mg/L.

The rise and fall of the Delaware River salt front. Over time, the location of the salt front moves in response to regional weather patterns, sea level rise, and human impacts. The precise location of the salt front in the Delaware River Basin is based on the location in the river where the average chloride concentration is 250 mg/L.

Photograph of two scientists in bright yellow personal protection clothing working with water sampling tools on a bridge
Sampling water quality from a bridge over Beaver River, near Beaver Falls, Pennsylvania
Sampling water quality from a bridge over Beaver River, near Beaver Falls, Pennsylvania
Sampling water quality from a bridge over Beaver River, near Beaver Falls, Pennsylvania

USGS scientists sampling water quality from a bridge over Beaver River, near Beaver Falls, Pennsylvania (Natalie Schmer, USGS).

USGS scientists sampling water quality from a bridge over Beaver River, near Beaver Falls, Pennsylvania (Natalie Schmer, USGS).

Satellite imagery showing land features and a muddy river
Schuylkill River Muddy Waters west of Philadelphia, Pennsylvania, Sep. 9, 2021 - Landsat
Schuylkill River Muddy Waters west of Philadelphia, Pennsylvania, Sep. 9, 2021 - Landsat
Schuylkill River Muddy Waters west of Philadelphia, Pennsylvania, Sep. 9, 2021 - Landsat

Schuylkill River Muddy Waters west of Philadelphia, Pennsylvania, September 9, 2021 - Landsat image reproduced in USGS Factsheet Pennsylvania and Landsat. This Landsat image shows the Schuylkill River west of Philadelphia, where muddied waters rose in several communities after the Hurricane Ida delug

Schuylkill River Muddy Waters west of Philadelphia, Pennsylvania, September 9, 2021 - Landsat image reproduced in USGS Factsheet Pennsylvania and Landsat. This Landsat image shows the Schuylkill River west of Philadelphia, where muddied waters rose in several communities after the Hurricane Ida delug

USGS staff standing on bridge using tablet, wearing highlighter yellow rain gear, in rainy weather, fast-flowing brown river
ADCP high flow measurement after Hurricane Ida in Carnegie, PA
ADCP high flow measurement after Hurricane Ida in Carnegie, PA
ADCP high flow measurement after Hurricane Ida in Carnegie, PA

Hydrologic Technician Ian Lynch from the Pittsburgh Field Office of the Pennsylvania Water Science Center takes a high flow measurement at USGS station 03085500, Chartiers Creek at Carnegie, PA during flooding from remnants of Hurricane Ida. 

Hydrologic Technician Ian Lynch from the Pittsburgh Field Office of the Pennsylvania Water Science Center takes a high flow measurement at USGS station 03085500, Chartiers Creek at Carnegie, PA during flooding from remnants of Hurricane Ida. 

photograph showing railroad tracks and industrial area under brown water, with vehicles and blue sky
Flooded area at railroad yard in Pennsylvania during Hurricane Ida
Flooded area at railroad yard in Pennsylvania during Hurricane Ida
Flooded area at railroad yard in Pennsylvania during Hurricane Ida

Flooded area at railroad yard in Norristown, Montgomery County, Pennsylvania during Hurricane Ida in September 2021. (USGS)

Flooded area at railroad yard in Norristown, Montgomery County, Pennsylvania during Hurricane Ida in September 2021. (USGS)

Nick Grim and Cameron Ensor rescuing a goose that got stuck in fishing line on the Delaware River
Nick Grim and Cameron Ensor rescuing a goose
Nick Grim and Cameron Ensor rescuing a goose
Nick Grim and Cameron Ensor rescuing a goose

Photo Contest Winner | August 2021 | Honorable Mention 2
Nick Grim and Cameron Ensor rescuing a goose that got stuck in fishing line on the Delaware River

Photo Contest Winner | August 2021 | Honorable Mention 2
Nick Grim and Cameron Ensor rescuing a goose that got stuck in fishing line on the Delaware River

Photograph showing wide river with forested bank and blue sky
Delaware River between Hancock and Port Jervis, NY
Delaware River between Hancock and Port Jervis, NY
Delaware River between Hancock and Port Jervis, NY

Photograph of two kayakers on the Delaware River bordering New York and Pennsylvania, between Hancock and Port Jervis. 

Photograph of two kayakers on the Delaware River bordering New York and Pennsylvania, between Hancock and Port Jervis. 

Mark Jones taking a measurement in Danville, Pennsylvania
Mark Jones taking a measurement in Danville, Pennsylvania
Mark Jones taking a measurement in Danville, Pennsylvania
Mark Jones taking a measurement in Danville, Pennsylvania

Photo Contest Winner | July 2021 | Honorable Mention 2

Mark Jones taking a measurement in Danville, Pennsylvania

Photo Contest Winner | July 2021 | Honorable Mention 2

Mark Jones taking a measurement in Danville, Pennsylvania

Cameron Ensor and Nick Grim demolish a broad-crested weir
Cameron Ensor and Nick Grim demolish a broad-crested weir
Cameron Ensor and Nick Grim demolish a broad-crested weir
Cameron Ensor and Nick Grim demolish a broad-crested weir

Photo Contest Winner | July 2021 | USGS at Work
Certified USGS Heavy Equipment Operators Cameron Ensor and Nick Grim demolish a broad-crested weir at USGS Station 01574500 at Cordorus Creek in Spring Grove, PA

Photo Contest Winner | July 2021 | USGS at Work
Certified USGS Heavy Equipment Operators Cameron Ensor and Nick Grim demolish a broad-crested weir at USGS Station 01574500 at Cordorus Creek in Spring Grove, PA

person standing using a remotely controlled acoustic doppler current profiler in a body of water
Remote control ADCP measurement
Remote control ADCP measurement
Remote control ADCP measurement

The Region 1, May 2021 "USGS at Work" Winner (by Aaron Stephens)

The Region 1, May 2021 "USGS at Work" Winner (by Aaron Stephens)

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