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A USGS hydrologist collects a sample of untreated groundwater from a domestic well in Susquehanna County, Pennsylvania. Learn more about domestic wells here.
A USGS hydrologist collects a sample of untreated groundwater from a domestic well in Susquehanna County, Pennsylvania. Learn more about domestic wells here.
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NWQL Building 95
Water Quality Sample
Water Quality Sample
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, an ecologist uses a net to collect a sample of aquatic invertebrates for ennumeration and identification.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, an ecologist uses a net to collect a sample of aquatic invertebrates for ennumeration and identification.
Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).
Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, two hydrologic technicians record characteristics of stream habitat.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, two hydrologic technicians record characteristics of stream habitat.
Biofilms take up pesticides in streams. Here, a hydrologic technician collects a sample of biofilm that has colonized an unglazed ceramic tile over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.
Biofilms take up pesticides in streams. Here, a hydrologic technician collects a sample of biofilm that has colonized an unglazed ceramic tile over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.
Biofilms take up pesticides in streams. Here, a hydrologic technician collects a sample of biofilm that has colonized an unglazed ceramic tile over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.
Biofilms take up pesticides in streams. Here, a hydrologic technician collects a sample of biofilm that has colonized an unglazed ceramic tile over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, a hydrologist carefully folds a filter used to collect a sample for analysis of eDNA.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, a hydrologist carefully folds a filter used to collect a sample for analysis of eDNA.
Sausal Creek in central Oakland, California, is an urban creek that has been extensively modified for flood control. The USGS Regional Stream Quality Assessment assessed the water quality and ecological integrity of small streams like Sausal Creek in five major regions of the country.
Sausal Creek in central Oakland, California, is an urban creek that has been extensively modified for flood control. The USGS Regional Stream Quality Assessment assessed the water quality and ecological integrity of small streams like Sausal Creek in five major regions of the country.
Flowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
Flowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, a hydrologic technician records characteristics of the habitat of a highly urbanized stream.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, a hydrologic technician records characteristics of the habitat of a highly urbanized stream.
Sausal Creek in central Oakland, California, is an urban creek that has been extensively modified for flood control. The USGS Regional Stream Quality Assessment assessed the water quality and ecological integrity of small streams like Sausal Creek in five major regions of the country.
Sausal Creek in central Oakland, California, is an urban creek that has been extensively modified for flood control. The USGS Regional Stream Quality Assessment assessed the water quality and ecological integrity of small streams like Sausal Creek in five major regions of the country.
A hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
A hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, a geolomorphologist assesses stream banks.
As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat. Here, a geolomorphologist assesses stream banks.
Solar energy is booming worldwide, and these Landsat 8 images show three large solar energy farms.
Solar energy is booming worldwide, and these Landsat 8 images show three large solar energy farms.
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Mt. Lyell and view of Vogelsang Pass, Yosemite National Park, 1913
USGS historical photogrpah by Richard B. Dole, 1913.
Mt. Lyell and view of Vogelsang Pass, Yosemite National Park, 1913
USGS historical photogrpah by Richard B. Dole, 1913.
The Bronx River has been straightened as it flows by a street in New York City. The Bronx River was one of many streams sampled in the Northeastern U.S. as part of the Regional Stream Quality Assessments (RSQA).
The Bronx River has been straightened as it flows by a street in New York City. The Bronx River was one of many streams sampled in the Northeastern U.S. as part of the Regional Stream Quality Assessments (RSQA).