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The USGS annually monitors groundwater levels in thousands of wells in the United States. Groundwater level data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.
Learn more:The USGS annually monitors groundwater levels in thousands of wells in the United States. Groundwater level data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.
waterdata.usgs.gov/nwis/gwGroundwater will normally look clear and clean because the ground naturally filters out particulate matter. But did you know that natural and human-induced chemicals can be found in groundwater even if appears to be clean? Below is a list of some contaminants that can occur in groundwater.
www.usgs.gov/special-topics/water-science-school/…The Active Groundwater Level Network contains water levels and well information from more than 20,000 wells that have been measured by the USGS or USGS cooperators at least once within the past 13 months.
www.usgs.gov/special-topics/water-science-school/…Estimated state areas and percent of state areas with groundwater nitrate concentrations > 10 mg/l, which is EPA's maximum contaminant level for nitrate. Also shown is the estimated % of the population in each state with self-supplied drinking water (98% of which is from groundwater wells).
www.epa.gov/nutrientpollution/estimated-nitrate-co…Concentrations of radium in samples of untreated groundwater from the Cambrian-Ordovician groundwater system frequently exceeded the USEPA Maximum Contaminant Level (MCL) of 5 picocuries per liter in Illinois, Iowa, and eastern Wisconsin, where wells tap deeper, older groundwater.
www.usgs.gov/mission-areas/water-resources/scie…USGS Groundwater Data for the Nation
The USGS annually monitors groundwater levels in thousands of wells in the United States. Groundwater level data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.
See results only from waterdata.usgs.gov- Field Measurements
Groundwater levels for the Nation. Choose Site Selection Criteria: There are …
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Title: USGS Groundwater Historical Instantaneous Data for the Nation URL: …
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Station Number Station name Depth to water level, feet below LSD Elev-ation, …
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Title: USGS Groundwater Daily Data for the Nation URL: …
- USGS Groundwater Data …
The Ground-Water database contains ground-water site inventory, ground …
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USGS Groundwater Data for California - USGS Groundwater Data for the Nation
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By default, the "Site-type" criterion is preselected below and will default to …
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By default, the "Site-type" criterion is preselected below and will default to …
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The U.S. Geological Survey has been investigating ground-water resources in …
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USGS Groundwater Data for Colorado - USGS Groundwater Data for the Nation
Contamination of Groundwater | U.S. Geological Survey - USGS.gov
Jun 6, 2018 · Groundwater will normally look clear and clean because the ground naturally filters out particulate matter. But did you know that natural and human-induced chemicals can be …
Groundwater Quality | U.S. Geological Survey - USGS.gov
Feb 6, 2019 · The Active Groundwater Level Network contains water levels and well information from more than 20,000 wells that have been measured by the USGS or USGS cooperators at …
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Estimated Nitrate Concentrations in Groundwater Used for Drinking
Dec 2, 2024 · Estimated state areas and percent of state areas with groundwater nitrate concentrations > 10 mg/l, which is EPA's maximum contaminant level for nitrate. Also shown is …
Groundwater Quality—Current Conditions and …
Feb 27, 2019 · Concentrations of radium in samples of untreated groundwater from the Cambrian-Ordovician groundwater system frequently exceeded the USEPA Maximum Contaminant Level (MCL) of 5 picocuries per liter in Illinois, …
Ground Water | US EPA - U.S. Environmental Protection Agency
Jul 8, 2024 · The ROE presents two indicators to address the ground water question: Pesticides in Ground Water and Freshwater Withdrawals. The first indicator describes levels of nutrients …
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Sources and factors influencing groundwater quality and …
Jun 1, 2023 · The study associated groundwater contamination with agricultural activities, poor sanitary practices around the well, and surface runoff from urban centres into the well water …
Rapid groundwater decline and some cases of recovery in …
Jan 24, 2024 · Here we analyse in situ groundwater-level trends for 170,000 monitoring wells and 1,693 aquifer systems in countries that encompass approximately 75% of global groundwater …
Groundwater pollution - Wikipedia
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater. This type of water pollution can …
Groundwater Contamination – The Groundwater …
Over 50% of the United States population depends on groundwater for drinking water. Groundwater is also one of our most important sources of water for irrigation. Unfortunately, groundwater is susceptible to pollutants.
Groundwater: It’s at the Root of Safe Water Consumption | Home
18 hours ago · In 2022, the Borough of Brooklawn in New Jersey used ECWAG funding to help eliminate high levels of perfluoroalkyl substances (PFAS) in the local water treatment facility’s …
Estimation of groundwater pollution levels and specific ionic …
Jun 1, 2022 · GR, chloro-alkaline indices, and saturation indices revealed the groundwater chemistry that explains the mineral weathering and dissolution, ion exchange, and evaporation …
Sources and Consequences of Groundwater Contamination
Groundwater contamination is defined as the addition of undesirable substances to groundwater caused by human activities (Government of Canada 2017). This can be caused by chemicals, …
Rising groundwater levels are threatening clean air and water …
Mar 29, 2023 · In the San Francisco Bay Area, rising groundwater threatens to spread contamination that can evaporate and rise into the air inside homes, schools, and workplaces. …
Groundwater quality | Minnesota Pollution Control Agency
Groundwater contamination and diminishing water levels in the ground can affect bodies of water on the surface. Groundwater feeds surface waters and helps maintain water levels during …
Groundwater Pollution and Remediation | EBSCO
Groundwater pollution refers to any artificial alteration of groundwater quality, often resulting from various human activities or natural processes. This pollution is a significant concern because …
Prediction of Groundwater Level and its Correlation with Land ...
3 days ago · Groundwater is the primary source of drinking water in the world, but its contamination and reduction cause environmental problems. Traditional hydraulic and …
Health risk assessment of groundwater use for drinking in West …
Mar 3, 2025 · Furthermore, unregulated exploitation of groundwater resources has resulted in water shortages over recent decades, which has adversely affected groundwater quality and …
What is Groundwater Pollution? - The Environmental Literacy …
Oct 21, 2024 · Groundwater pollution is a critical global challenge requiring immediate and comprehensive action. The consequences of failing to protect this vital resource are severe, …
EWG Reveals Toxic Chemicals in US Tap Water
Feb 26, 2025 · Many of these contaminants are at levels far above what scientists consider safe. EWG’s latest analysis includes water quality data collected between 2021 and 2023 from …
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