Bruce Lindsey
Groundwater Status and Trends Coordinator
National Water-Quality Program
Water Resource Assessments Branch
Earth Systems and Processes Division, Water Mission Area
U.S. Geological Survey
B.S. Agricultural Engineering, 1984, Pennsylvania State University M.S. Geoenvironmental Science, 2004, Shippensburg University
Biography
My work involves assessments of groundwater quality. I am the coordinator for national assessments of status and trends in groundwater quality in the United States for the National Water-Quality Assessment project. The objective of this study is to evaluate the quality and availability of groundwater for drinking supply, improve our understanding of where and why water quality is degraded, and assess how groundwater quality could respond to changes in hydrologic conditions and land use. Constituents of concern for this research include both natural contaminants (trace elements and radionuclides) as well as anthropogenic contaminants (nutrients, volatile organic compounds and pesticides). In addition, I have conducted studies on microbiological quality of drinking water resources, focusing on occurrence of both bacteria and viruses. I also have an interest in the effects of karst on water quality.
Science and Products
Date published: May 8, 2019
Status: Active Pesticides in Pennsylvania Groundwaters
This project is part of a collaboration that began in the 1980’s between the U.S. Geological Survey (USGS) and Pennsylvania Department of Agriculture (PDA) to further the understanding of groundwater quality in areas where pesticides are applied. The work continues presently with active cooperation and funding support from the PDA and USGS Cooperative Matching Funds Program. The current focus...
Attribution: Pennsylvania Water Science Center
Date published: March 2, 2019
Status: Active Groundwater Quality Research
Every day, millions of gallons of groundwater are pumped to supply drinking water for about 140 million people, almost one-half of the Nation’s population. Learn about the quality and availability of groundwater for drinking, where and why groundwater quality is degraded, and where groundwater quality is changing.
Attribution: Water Resources, National Water Quality Program
Date published: March 2, 2019
Status: Active Chloride, Salinity, and Dissolved Solids
All natural waters contain some dissolved solids (salinity) from contact with soils, rocks, and other natural materials. Too much, though, and dissolved solids can impair water use. Unpleasant taste, high water-treatment costs, mineral accumulation in plumbing, staining, corrosion, and restricted use for irrigation are among the problems associated with elevated concentrations of dissolved...
Contacts: Bruce Lindsey
Attribution: Water Resources, National Water Quality Program
Date published: March 1, 2019
Status: Active Public Supply Wells
Are you among the more than 100 million people in the U.S. who relies on a public-supply well for your drinking water? Although the quality of finished drinking water from public water systems is regulated by the EPA, long-term protection and management of the raw groundwater tapped by public-supply wells requires an understanding of the occurrence of contaminants in this invisible, vital...
Attribution: Water Resources, National Water Quality Program
Date published: February 28, 2019
Status: Completed Groundwater Quality in Principal Aquifers of the Nation, 1991–2010
What’s in your groundwater? Learn about groundwater quality in the Principal Aquifers of nine regions across the United States in informative circulars filled with figures, photos, and water-quality information.
Contacts: Leslie A DeSimone, Bruce Lindsey
Attribution: Water Resources
Date published: February 28, 2019
Status: Active Groundwater Quality—Current Conditions and Changes Through Time
Is groundwater the source of your drinking water? The USGS is assessing the quality of groundwater used for public supply using newly collected data along with existing water-quality data. Learn more about this invisible, vital resource so many of us depend on.
Contacts: Bruce Lindsey
Attribution: Water Resources, National Water Quality Program
Date published: February 27, 2019
Status: Active Volatile Organic Compounds (VOCs)
Volatile organic compounds (VOCs) are chemicals that both vaporize into air and dissolve in water. VOCs are pervasive in daily life, because they’re used in industry, agriculture, transportation, and day-to-day activities around the home. Once released into groundwater, many VOCs are persistent and can migrate to drinking-water supply wells.
Contacts: Bruce Lindsey
Attribution: Water Resources, National Water Quality Program
Date published: December 12, 2016
Status: Completed USGS Online Mapper Provides a Decadal Look at Groundwater Quality
A new online interactive mapping tool provides summaries of decadal-scale changes in groundwater chemistry across the Nation.
Contacts: Bruce Lindsey
Attribution: Environmental Health
Date published: October 1, 2003
Status: Completed Bacteriological quality of groundwater used for household supply
In fractured bedrock aquifers used for domestic supply conditions can exist where contaminants such as bacteria are not filtered out by the soil. Once in the fracture system, little additional filtration takes place.
The results of a synotic sampling of domestic wells in the Lower Susquehanna River basin, Pennsylvania and Maryland, showed that bacteria concentrations were higher in...
Contacts: Tammy Zimmerman, Bruce Lindsey
Year Published: 2020
Fluoride occurrence in United States groundwater
Data from 38,105 wells were used to characterize fluoride (F) occurrence in untreated United States (U.S.) groundwater. For domestic wells (n = 11,032), water from which is generally not purposely fluoridated or monitored for quality, 10.9% of the samples have F concentrations >0.7 mg/L (U.S. Public Health Service recommended optimal F...
McMahon, Peter B.; Brown, Craig J.; Johnson, Tyler D.; Belitz, Kenneth; Lindsey, Bruce D.Attribution: Northern Prairie Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, California Water Science Center, Water Resources, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Fisheries Research Center, Ecosystems, Fisheries Program, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Northern Prairie Wildlife Research Center, Ecosystems, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Fort Collins Science Center, Ecosystems, Fort Collins Science Center, Ecosystems, United States of America, Pacific Coastal and Marine Science Center, Pacific Coastal and Marine Science Center, National Wildlife Health Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Climate Adaptation Science Centers, Land Resources, Climate Adaptation Science Centers, California Water Science Center, Water Resources, Core Science Systems, National Geospatial Program, National Geospatial Technical Operations Center, Core Science Systems, National Geospatial Program, National Geospatial Technical Operations Center, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Community for Data Integration (CDI), Science Analytics and Synthesis (SAS), United States of America, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Southwest Biological Science Center, Ecosystems, Western Ecological Research Center, Ecosystems, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Washington Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Southwest Biological Science Center, Ecosystems, Science and Decisions Center, Alaska Science Center, Ecosystems, Region 11: Alaska, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Water, New Jersey Water Science Center, Water Resources, Region 4: Mississippi Basin, New Jersey, United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Upper Midwest Water Science Center, Water Resources, Washington Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Fort Collins Science Center, Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Northern Prairie Wildlife Research Center, Ecosystems, Pacific Coastal and Marine Science Center, National Geospatial Program, Upper Midwest Water Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Wyoming-Montana Water Science Center, Water Resources, Florence Bascom Geoscience Center, Western Fisheries Research Center, Ecosystems, Fisheries Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, New York, United States of America, Northern Prairie Wildlife Research Center, Ecosystems, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Nebraska Water Science Center, Water Resources, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Dakota Water Science Center, Central Midwest Water Science Center, Eastern Mineral and Environmental Resources Science Center, Water Resources, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Water, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Utah, Switzerland, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Upper Midwest Environmental Sciences Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, Region 11: Alaska, California Water Science Center, Water Resources, New York Water Science Center, Water Resources, Geology, Geophysics, and Geochemistry Science Center, Water Resources, Region 7: Upper Colorado Basin, Alaska Science Center, Region 11: Alaska, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Office of Science Quality and Integrity, Alaska Science Center, Region 11: Alaska, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Upper Midwest Water Science Center, Ecosystems, United States of America, Water, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, New Jersey, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, United States of America, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Colorado, United States of America, Ecosystems, Volcano Hazards Program Office, Region 11: Alaska, United States of America, Pacific Island Ecosystems Research Center, Ecosystems, Ecosystems, Volcano Hazards Program Office, Region 11: Alaska, United States of America, Western Fisheries Research Center, Ecosystems, Fisheries Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geology, Minerals, Energy, and Geophysics Science Center, Washington Water Science Center, Water Resources, Western Ecological Research Center, Ecosystems, National Wildlife Health Center, Ecosystems, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geology, Minerals, Energy, and Geophysics Science Center, Environmental Health, Kansas Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Eastern Energy Resources Science Center, Energy Resources Program, National Wildlife Health Center, Ecosystems, Water, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, New Mexico, United States of America, Northern Prairie Wildlife Research Center, Ecosystems, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, National Wildlife Health Center, Ecosystems, Pacific Coastal and Marine Science Center, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Western Fisheries Research Center, Ecosystems, Fisheries Program, Volcano Hazards Program Office, Alaska Science Center, Ecosystems, Region 11: Alaska, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Upper Midwest Water Science Center, Water Resources, Geology, Woods Hole Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, Washington, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Ecuador, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Water, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, New Jersey, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Pacific Coastal and Marine Science Center, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Western Fisheries Research Center, Ecosystems, Fisheries Program, Alaska Science Center, Ecosystems, Region 11: Alaska, Central Midwest Water Science Center, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, Pacific Coastal and Marine Science Center, Water Resources, Western Ecological Research Center, Ecosystems, Western Ecological Research Center, Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Northern Prairie Wildlife Research Center, Ecosystems, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, New York Water Science Center, Water Resources, California Water Science Center, Water Resources, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Ecological Research Center, Ecosystems, Volcano Hazards Program Office, Pacific Coastal and Marine Science Center, National Wildlife Health Center, Ecosystems, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Pacific Islands Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Natural Hazards, Volcano Hazards Program Office, Water Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Upper Midwest Water Science Center, Fort Collins Science Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Natural Hazards, Pacific Coastal and Marine Science Center, Natural Hazards, Earthquake Hazards Program, Utah, United States of America, Alaska Science Center, Ecosystems, Region 11: Alaska, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America, Geology, Minerals, Energy, and Geophysics Science Center, Volcano Hazards Program Office, Alaska Science Center, Ecosystems, Region 11: Alaska, Water, Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Pennsylvania, United States of America, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, United States of America, Earth Mapping Resources Initiative (Earth MRI), Region 11: Alaska, Upper Midwest Water Science Center, Climate Adaptation Science Centers, Land Resources, Climate Adaptation Science Centers, Dakota Water Science Center, Southwest Climate Adaptation Science Center, Land Resources, Natural Hazards, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Region 11: Alaska, Alaska, United States of America, Alaska Science Center, Ecosystems, Region 11: Alaska, Cooperative Research Units, Nebraska Water Science Center, Water Resources, Water, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, New Mexico, United States of America, Geologic Hazards Science Center, Natural Hazards, Region 11: Alaska, United States of America, Western Ecological Research Center, Ecosystems, Dakota Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Upper Midwest Water Science Center, Central Midwest Water Science Center, Water, Pennsylvania Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America
Year Published: 2020
The relation of geogenic contaminants to groundwater age, aquifer hydrologic position, water type, and redox conditions in Atlantic and Gulf Coastal Plain aquifers, eastern and south-central USA
Groundwater age distributions developed from carbon-14 (14C), tritium (3H), and helium-4 (4He) concentrations, along with aquifer hydrologic position, water type, and redox conditions, were compared to geogenic contaminants of concern (GCOC) from 252 public-supply wells in six Atlantic and Gulf Coastal Plain unconsolidated-sediment aquifers....
Degnan, James R.; Lindsey, Bruce D.; Levitt, Joseph Patrick; Szabo, ZoltanAttribution: Pacific Coastal and Marine Science Center, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Water Resources, Florence Bascom Geoscience Center, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Volcano Hazards Program Office, Indonesia, International Programs, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, New York Water Science Center, Water Resources, New York Water Science Center, Water Resources, Northern Prairie Wildlife Research Center, Ecosystems, Pacific Coastal and Marine Science Center, California Water Science Center, Water Resources, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, California, United States of America, Astrogeology Science Center, Natural Hazards, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Land Change Monitoring, Assessment and Projection, Water, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, United States of America, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Oregon Water Science Center, Water Resources, Northern Prairie Wildlife Research Center, Ecosystems, Fort Collins Science Center, Ecosystems, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Central Midwest Water Science Center, Water Resources, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Water, Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Pennsylvania, United States of America, Alaska Science Center, Region 11: Alaska, United States of America, Dakota Water Science Center, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Maryland-Delaware-D.C. Water Science Center, Water Resources, Water, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Puerto Rico, United States of America, Upper Midwest Water Science Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Volcano Hazards Program Office, Fort Collins Science Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Western Ecological Research Center, Ecosystems, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Water, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Virginia, United States of America
Year Published: 2020
Time scales of arsenic variability and the role of high-frequency monitoring at three water-supply wells in New Hampshire, USA
Groundwater geochemistry, redox process classification, high-frequency physicochemical and hydrologic measurements, and climate data were analyzed to identify controls on arsenic (As) concentration changes. Groundwater was monitored in two public-supply wells (one glacial aquifer and one bedrock aquifer), and one bedrock-aquifer domestic well in...
Degnan, James R.; Levitt, Joseph P.; Erickson, Melinda; Jurgens, Bryant C.; Lindsey, Bruce D.; Ayotte, Joseph D.Attribution: Great Lakes Science Center, Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Columbia Environmental Research Center, Water Resources, Region 4: Mississippi Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Geology, Minerals, Energy, and Geophysics Science Center, Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Fort Collins Science Center, Ecosystems, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Southwest Biological Science Center, Ecosystems, New England Water Science Center, Water Resources, Region 4: Mississippi Basin
Year Published: 2019
Using age tracers and decadal sampling to discern trends in nitrate, arsenic and uranium in groundwater beneath irrigated cropland
Repeat sampling and age tracers were used to examine trends in nitrate, arsenic and uranium concentrations in groundwater beneath irrigated cropland. Much higher nitrate concentrations in shallow modern groundwater were observed at both the Columbia Plateau and High Plains sites (median values of 10.2 and 15.4 mg/L as N, respectively) than in...
Tesoriero, Anthony J.; Burow, Karen R.; Frans, Lonna; Haynes, Jonathan V.; Hobza, Christopher M.; Lindsey, Bruce D.; Solder, John E.Attribution: Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, United States of America, Wildland Fire Science, Western Fisheries Research Center, Ecosystems, Fisheries Program, Geology, Minerals, Energy, and Geophysics Science Center, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Pacific Coastal and Marine Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Water Resources, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Western Ecological Research Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, United States of America, Ohio-Kentucky-Indiana Water Science Center, Volcano Hazards Program Office, Science and Decisions Center, Water Resources, Water, Pennsylvania Water Science Center, Region 4: Mississippi Basin, Pennsylvania, Geology, Minerals, Energy, and Geophysics Science Center, Water Resources, New York Water Science Center, Water Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Change Science Program, United States of America, Volcano Hazards Program Office, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, California Water Science Center, Water Resources, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Alaska, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Virginia and West Virginia Water Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Upper Midwest Water Science Center, Kansas Water Science Center, Water Resources, Great Lakes Science Center, Ecosystems, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, California Water Science Center, Water Resources, Arizona Water Science Center, Water Resources, Alaska Science Center, Ecosystems, Region 11: Alaska, Great Lakes Science Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Fisheries Research Center, Ecosystems, Fisheries Program, Northern Prairie Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Wildland Fire Science, Geology, Minerals, Energy, and Geophysics Science Center, Florence Bascom Geoscience Center, Region 7: Upper Colorado Basin, Eastern Energy Resources Science Center, Energy Resources Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Climate Adaptation Science Centers, Climate Adaptation Science Centers, Pacific Island Ecosystems Research Center, Ecosystems, Volcano Hazards Program Office, Eastern Energy Resources Science Center, Energy Resources Program, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Dakota Water Science Center, Western Ecological Research Center, Ecosystems, Dakota Water Science Center, Water Resources, Water, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Pennsylvania, Western Geographic Science Center, Western Geographic Science Center, United States of America, Wildland Fire Science, Upper Midwest Environmental Sciences Center, Ecosystems, Biology and Ecosystems, Chesapeake Bay Activities, Core Science Systems, Science and Decisions Center, United States of America, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, EROS CalVal Center of Excellence, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Oregon Water Science Center, Water Resources
Year Published: 2019
Tritium as an indicator of modern, mixed, and premodern groundwater age
Categorical classification of groundwater age is often used for the assessment and understanding of groundwater resources. This report presents a tritium-based age classification system for the conterminous United States based on tritium (3H) thresholds that vary in space and time: modern (recharged in 1953 or later), if the measured value is...
Lindsey, Bruce D.; Jurgens, Bryant C.; Belitz, KennethAttribution: Ohio-Kentucky-Indiana Water Science Center, Fort Collins Science Center, Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Change Science Program, United States of America, Western Geographic Science Center, Land Change Science Program, United States of America, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Western Ecological Research Center, Ecosystems, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Science Analytics and Synthesis (SAS), Water Resources, Geology, Minerals, Energy, and Geophysics Science Center, Energy Resources Program, Southwest Biological Science Center, Ecosystems, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Northern Prairie Wildlife Research Center, Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Idaho Water Science Center, Water Resources, Lower Mississippi-Gulf Water Science Center, Water Resources, Water Availability and Use Science Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), United States of America, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Kansas Water Science Center, Water Resources, Geology, Minerals, Energy, and Geophysics Science Center, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Northern Prairie Wildlife Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Upper Midwest Environmental Sciences Center, Ecosystems, Region 1: North Atlantic-Appalachian, Pacific Coastal and Marine Science Center, Alaska Science Center, Ecosystems, Region 11: Alaska, Western Ecological Research Center, Ecosystems, Energy, Eastern Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, West Virginia, United States of America, Eastern Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Fort Collins Science Center, Ecosystems, Southwest Biological Science Center, Ecosystems, Kansas Water Science Center, Water Resources, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, United States of America, Gulf of Mexico, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Natural Hazards, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, California, United States of America, Core Science Systems, Natural Hazards, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, United States of America, Water Resources, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Biology and Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Alaska Science Center, Ecosystems, Region 11: Alaska, California Water Science Center, Water Resources, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Natural Hazards, Energy Resources Program, Region 7: Upper Colorado Basin, United States of America, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Woods Hole Coastal and Marine Science Center, Natural Hazards, Energy Resources Program, Region 7: Upper Colorado Basin, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Alaska Science Center, Land Change Science Program, Region 11: Alaska, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Wyoming-Montana Water Science Center, United States of America, Oregon Water Science Center, Water Resources, Energy, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wyoming, United States of America, Cooperative Research Units, Great Lakes Science Center, Ecosystems, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Geology, Minerals, Energy, and Geophysics Science Center, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Pacific Islands Water Science Center, Water Resources, Eastern Energy Resources Science Center, Energy Resources Program, Alaska Science Center, Ecosystems, Region 11: Alaska, Fort Collins Science Center, Ecosystems, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Great Lakes Science Center, Ecosystems, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Washington Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Alaska Science Center, Region 11: Alaska, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Western Fisheries Research Center, Ecosystems, Fisheries Program, Pacific Islands Water Science Center, Water Resources, Pacific Islands Water Science Center, Water Resources, Western Geographic Science Center, Water Resources, Land Change Science Program, United States of America, California Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Cooperative Research Units, Pacific Coastal and Marine Science Center, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Dakota Water Science Center, Eastern Energy Resources Science Center, Energy Resources Program, Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Northern Prairie Wildlife Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, Water, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Cooperative Research Units, Energy, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Upper Midwest Water Science Center, Water Resources, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Upper Midwest Water Science Center, Water Resources, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Water Resources, Western Ecological Research Center, Ecosystems, Water Resources, Great Lakes Science Center, Ecosystems, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Biology and Ecosystems, Ecosystems, Energy & Wildlife, United States of America, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Ecosystems, Biology and Ecosystems, Ecosystems, Energy & Wildlife, United States of America, National Wildlife Health Center, Ecosystems, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Oregon Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Upper Midwest Environmental Sciences Center, Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Hawaii, United States of America, Energy, Eastern Energy Resources Science Center, Energy Resources Program, Virginia, United States of America, Southwest Biological Science Center, Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, California, United States of America, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Pacific Coastal and Marine Science Center, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Western Ecological Research Center, Ecosystems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Water Resources, United States of America, Wildland Fire Science, Ecosystems, Volcano Hazards Program Office, United States of America, Ecosystems, Volcano Hazards Program Office, United States of America, Ecosystems, Volcano Hazards Program Office, United States of America, Ecosystems, Volcano Hazards Program Office, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Italy, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Fort Collins Science Center, Ecosystems, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, Eastern Mineral and Environmental Resources Science Center, Energy and Minerals, Energy Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Reston Electron Microbeam Laboratory, Alaska Science Center, Ecosystems, Region 11: Alaska, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, California Water Science Center, Water Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Idaho Water Science Center, Water Resources, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Fort Collins Science Center, Ecosystems, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Southwest Biological Science Center, Ecosystems, Cooperative Research Units, Fort Collins Science Center, Water Resources, Cooperative Research Units, Region 7: Upper Colorado Basin, United States of America, Natural Hazards, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, California, United States of America, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Midwest Water Science Center, Western Ecological Research Center, Ecosystems, Land Change Science Program, United States of America, Great Lakes Science Center, Ecosystems, Volcano Hazards Program Office, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, United States of America, Tribal Relations, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Pacific Island Ecosystems Research Center, Ecosystems, Southwest Biological Science Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Idaho Water Science Center, Water Resources, Geology, Minerals, Energy, and Geophysics Science Center, California Water Science Center, Water Resources, Region 4: Mississippi Basin, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, California Water Science Center, Water Resources, New England Water Science Center, Water Resources, Region 4: Mississippi Basin
View Citation
Lindsey, B.D., Jurgens, B.C., and Belitz, K., 2019, Tritium as an indicator of modern, mixed, and premodern groundwater age: U.S. Geological Survey Scientific Investigations Report 2019–5090, 18 p., https://doi.org/10.3133/sir20195090.
Year Published: 2019
Hydrocarbons in upland groundwater, Marcellus Shale Region, Northeastern Pennsylvania and Southern New York, USA
Water samples from 50 domestic wells located <1 km (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for chemical, isotopic, and groundwater-age tracers. Uplands were targeted because natural mixing with brine and hydrocarbons from deep formations is less common in those areas...
McMahon, Peter B.; Lindsey, Bruce D.; Conlon, Matthew D.; Hunt, Andrew G.; Belitz, Kenneth; Jurgens, Bryant; Varela, BrianAttribution: Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Geomagnetism Program, Region 7: Upper Colorado Basin, New York, United States of America, Alaska Science Center, Ecosystems, Region 11: Alaska, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Water Resources, Groundwater and Streamflow Information Program, United States of America, Leetown Science Center, Ecosystems, Cooperative Research Units, Region 1: North Atlantic-Appalachian, United States of America, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Southwest Biological Science Center, Ecosystems, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Washington Water Science Center, Water Resources, Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, California, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Great Lakes Science Center, Ecosystems, Minerals, Geology, Minerals, Energy, and Geophysics Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Alaska, United States of America, Great Lakes Science Center, Ecosystems, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Alaska Science Center, Ecosystems, Region 11: Alaska, Upper Midwest Water Science Center, Water Resources, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Volcano Hazards Program Office, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, National Cooperative Geologic Mapping Program, Region 7: Upper Colorado Basin, Colorado, United States of America, Wyoming-Montana Water Science Center, Water Resources, Natural Hazards, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geology, Minerals, Energy, and Geophysics Science Center, Mapping, Remote Sensing, and Geospatial Data, Earth Resources Observation and Science (EROS) Center, Land Resources, Earth Resources Observation and Science Center, United States of America, Requirements Capabilities and Analysis for Earth Observations, Great Lakes Science Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, Southwest Biological Science Center, Ecosystems, South Atlantic Water Science Center (SAWSC), Water Resources, Toxic Substances Hydrology Program, Region 4: Mississippi Basin, Pennsylvania, United States of America, Maryland-Delaware-D.C. Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, United States of America, Astrogeology Science Center, Natural Hazards, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Water Resources, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, New Mexico Water Science Center, Water Resources, Earth Resources Observation and Science Center, Region 7: Upper Colorado Basin, Volcano Hazards Program Office, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Fort Collins Science Center, Ecosystems, Land Change Science Program, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Volcano Hazards Program Office, Western Ecological Research Center, Ecosystems, Great Lakes Science Center, Ecosystems, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Upper Midwest Water Science Center, Water Resources, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Volcano Hazards Program Office, Volcano Hazards Program Office, Central Midwest Water Science Center, Water Resources, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Nebraska Water Science Center, Water Resources, California Water Science Center, Water Resources, Central Midwest Water Science Center, Colorado Water Science Center, Water Resources, Region 11: Alaska, United States of America, Central Midwest Water Science Center, California Water Science Center, Water Resources, Pacific Island Ecosystems Research Center, Ecosystems, Cooperative Research Units, Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Washington, United States of America, Western Ecological Research Center, Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Region 4: Mississippi Basin, Water Resources, Environmental Health, Water Resources, Toxic Substances Hydrology Program, United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Northern Prairie Wildlife Research Center, Ecosystems, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Pacific Island Ecosystems Research Center, Ecosystems, Nevada Water Science Center, Water Resources, Northern Prairie Wildlife Research Center, Ecosystems, Wetland and Aquatic Research Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, United States of America, Gulf of Mexico, Upper Midwest Environmental Sciences Center, Ecosystems, Western Ecological Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Pacific Islands Water Science Center, Water Resources, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Texas Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Colorado, United States of America, Environmental Health, Utah Water Science Center, Water Resources, Toxic Substances Hydrology Program, , Pennsylvania, United States of America, Biology and Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Wildlife Program, Washington, United States of America, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Oklahoma Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Biology and Ecosystems, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, Colorado, United States of America, Water, Pennsylvania Water Science Center, Water Resources, National Water Quality Program, Region 7: Upper Colorado Basin, Pennsylvania, United States of America
Year Published: 2019
Factors affecting the occurrence of lead and manganese in untreated drinking water from Atlantic and Gulf Coastal Plain aquifers, eastern United States—Dissolved oxygen and pH framework for evaluating risk of elevated concentrations
Groundwater samples collected during 2012 and 2013 from public-supply wells screened in the Atlantic and Gulf Coastal Plain aquifers of the eastern and southeastern U.S. rarely contained lead or manganese concentrations that exceeded drinking-water limits, despite having corrosive characteristics. Data indicate that the...
Brown, Craig J.; Barlow, Jeannie R. B.; Cravotta, Charles A.; Lindsey, Bruce D.Attribution: Water Resources, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Water, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, Oregon Water Science Center, Water Resources, Water Resources, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Water, Pennsylvania Water Science Center, Water Resources, Region 4: Mississippi Basin, United States of America
Year Published: 2018
Groundwater-quality and select quality-control data from the National Water-Quality Assessment Project, January through December 2015, and previously unpublished data from 2013 to 2014
Groundwater-quality data were collected from 502 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and are included in this report. Most of the wells (500) were sampled from January through December 2015, and 2 of them were sampled in 2013. The data were collected from five...
Arnold, Terri L.; Bexfield, Laura M.; Musgrove, MaryLynn; Stackelberg, Paul E.; Lindsey, Bruce D.; Kingsbury, James A.; Kulongoski, Justin T.; Belitz, KennethAttribution: Data, Tools, and Technology, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, , Science and Decisions Center, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Natural Hazards, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, , Science and Decisions Center, Water, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Rhode Island, United States of America, Core Science Systems, National Geospatial Program, National Geospatial Technical Operations Center, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Oregon Water Science Center, Water Resources, California Water Science Center, Water Resources, Western Ecological Research Center, Ecosystems, Cooperative Research Units, Region 1: North Atlantic-Appalachian, New York Water Science Center, Water Resources, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Wildland Fire Science, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Mississippi, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Water, Central Midwest Water Science Center, Missouri, United States of America, California Water Science Center, Water Resources, Groundwater and Streamflow Information Program, Astrogeology Science Center, Natural Hazards, , , Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Washington, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Great Lakes Science Center, Ecosystems, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Fort Collins Science Center, Ecosystems, Natural Hazards, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, California Water Science Center, Water Resources, United States of America, Organic Matter Research Laboratory, Western Ecological Research Center, Ecosystems, Cooperative Research Units, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Coastal National Elevation Database (CoNED) Applications Project, Central Midwest Water Science Center, Region 4: Mississippi Basin
View Citation
Arnold, T.L., Bexfield, L.M., Musgrove, M., Stackelberg, P.E., Lindsey, B.D., Kingsbury, J.A., Kulongoski, J.T., and Belitz, K., 2018, Groundwater-quality and select quality-control data from the National Water-Quality Assessment Project, January through December 2015, and previously unpublished data from 2013 to 2014: U.S. Geological Survey Data Series 1087, 68 p., https://doi.org/10.3133/ds1087.
Year Published: 2017
Groundwater quality in the Piedmont and Blue Ridge crystalline-rock aquifers, eastern United States
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water (Burow and Belitz, 2014). The Piedmont and Blue Ridge crystalline-rock...
Lindsey, Bruce D.Attribution: Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, Australia, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Kansas Water Science Center, Water Resources, Groundwater and Streamflow Information Program, , United States of America, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Pacific Coastal and Marine Science Center, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Dakota Water Science Center, Water Resources, Alaska Science Center, Groundwater and Streamflow Information Program, Region 11: Alaska, Southwest Biological Science Center, Ecosystems, , Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Pacific Coastal and Marine Science Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Global Seismographic Network, Region 7: Upper Colorado Basin, United States of America, Cooperative Research Units, Cooperative Research Units, Alaska Science Center, Groundwater and Streamflow Information Program, Region 11: Alaska, Natural Hazards, Earthquake Science Center, Natural Hazards, Science Application for Risk Reduction, United States of America, Reducing Risk, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Cooperative Research Units, , Energy and Minerals, Science and Decisions Center, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Colorado, United States of America, Cooperative Research Units, Southwest Biological Science Center, Ecosystems, , Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Natural Hazards, , Natural Hazards, Science and Decisions Center, United States of America, Astrogeology Science Center, Natural Hazards, , , Cooperative Research Units, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, United States of America, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, National Wildlife Health Center, Ecosystems, Eastern Geographic Science Center, Region 1: North Atlantic-Appalachian, Astrogeology Science Center, Natural Hazards, , , Astrogeology Science Center, Natural Hazards, , , Energy Resources Program, Energy Resources Program, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, California Water Science Center, Water Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, , Volcano Hazards Program Office, Alaska Science Center, Ecosystems, Region 11: Alaska, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, District of Columbia, North America, Great Lakes Science Center, Ecosystems, Western Ecological Research Center, Ecosystems, Pacific Coastal and Marine Science Center, Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, Ecosystems, , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Geology, Minerals, Energy, and Geophysics Science Center, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Southwest Biological Science Center, Ecosystems, , Region 11: Alaska, Great Lakes Science Center, Ecosystems, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, , Energy and Minerals, Science and Decisions Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Alaska Science Center, Ecosystems, Region 11: Alaska, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, United States of America, Gulf of Mexico, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Spectroscopy Lab, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Georgia, United States of America, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Western Ecological Research Center, Environmental Health, Contaminant Biology Program, Region 1: North Atlantic-Appalachian, United States of America, Nevada Water Science Center, Water Resources, Alaska Science Center, Region 11: Alaska, Upper Midwest Water Science Center, Water Resources, , Water Resources, United States of America, Eastern Energy Resources Science Center, Energy Resources Program, , , Volcano Hazards Program Office, , Energy and Minerals, Science and Decisions Center, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Energy Resources Program, Energy Resources Program, Energy Resources Program, Energy Resources Program, Water, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Massachusetts, United States of America, Idaho Water Science Center, Water Resources, Dakota Water Science Center, Water Resources, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Washington, Canada, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Texas, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Mapping, Remote Sensing, and Geospatial Data, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Water, Pennsylvania Water Science Center, Water Resources, United States of America, Minerals, Eastern Mineral and Environmental Resources Science Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, , Energy and Minerals, Science and Decisions Center, Minerals, Eastern Mineral and Environmental Resources Science Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Eastern Mineral and Environmental Resources Science Center, Energy and Minerals, Science and Decisions Center, Region 1: North Atlantic-Appalachian, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Minerals, , Energy and Minerals, Science and Decisions Center, United States of America, Eastern Mineral and Environmental Resources Science Center, Groundwater and Streamflow Information Program, Region 1: North Atlantic-Appalachian, Minerals, National Minerals Information Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, , Energy and Minerals, Science and Decisions Center, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Alaska Science Center, Groundwater and Streamflow Information Program, Region 11: Alaska, Minerals, Eastern Mineral and Environmental Resources Science Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, , Volcano Hazards Program Office, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Water Resources, Water Resources, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Western Ecological Research Center, Ecosystems, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America, Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Pacific Island Ecosystems Research Center, Ecosystems, Northwest - Pacific Islands, Southwest Biological Science Center, Ecosystems, Land Change Science Program, United States of America, Cooperative Research Units, Water, Upper Midwest Environmental Sciences Center, Water Resources, Region 7: Upper Colorado Basin, Ohio, United States of America, Geosciences and Environmental Change Science Center, Region 1: North Atlantic-Appalachian, United States of America, National Wildlife Health Center, Ecosystems, Upper Midwest Water Science Center, Water Resources, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Oregon Water Science Center, Water Resources, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Land Use Land Cover Modeling, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America, Western Ecological Research Center, Ecosystems, Western Ecological Research Center, Ecosystems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, California, United States of America, California Water Science Center, Water Resources, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Arizona Water Science Center, Water Resources, , Water Resources, Water Resources, United States of America, Water Science School, Water Resources, Water, Pennsylvania Water Science Center, Water Resources, Pennsylvania, United States of America
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Lindsey, Bruce, 2017, Groundwater quality in the Piedmont and Blue Ridge crystalline-rock aquifers, eastern United States: U.S. Geological Survey Fact Sheet 2017–3040, 4 p., https://doi.org/10.3133/fs20173040.
Year Published: 2017
Using groundwater age distributions to understand changes in methyl tert-butyl ether (MtBE) concentrations in ambient groundwater, northeastern United States
Temporal changes in methyl tert-butyl ether (MtBE) concentrations in groundwater were evaluated in the northeastern United States, an area of the nation with widespread low-level detections of MtBE based on a national survey of wells selected to represent ambient conditions. MtBE use in the U.S. peaked in 1999 and was largely discontinued by 2007...
Lindsey, Bruce D.; Ayotte, Joseph D.; Jurgens, Bryant C.; DeSimone, Leslie A.Attribution: Western Ecological Research Center, Ecosystems, Southwest Biological Science Center, Ecosystems, , Upper Midwest Water Science Center, Water Resources, Water Resources, , Water Resources, Land Change Science Program, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Nepal, Pacific Coastal and Marine Science Center, Pacific Coastal and Marine Science Center, Northern Prairie Wildlife Research Center, Ecosystems, Great Lakes Science Center, Ecosystems, Great Lakes Science Center, Ecosystems, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, , John Wesley Powell Center for Analysis and Synthesis, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Alaska Climate Adaptation Science Center, Land Resources, Region 11: Alaska, Astrogeology Science Center, Natural Hazards, , , Astrogeology Science Center, Natural Hazards, , , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, , Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Oklahoma Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Oklahoma Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Water Resources, , Water Resources, , Northern Prairie Wildlife Research Center, Ecosystems, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Upper Midwest Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, U.S. Virgin Islands, California Water Science Center, Water Resources, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Water Resources, , St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Upper Midwest Environmental Sciences Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, California Water Science Center, Water Resources, Volcano Hazards Program Office, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Climate Adaptation Science Centers, Land Resources, Climate Adaptation Science Centers, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Biology and Ecosystems, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, California Water Science Center, Water Resources, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Upper Midwest Environmental Sciences Center, Ecosystems, Pacific Coastal and Marine Science Center, New England Water Science Center, Water Resources, Land Change Science Program, Region 4: Mississippi Basin, United States of America, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Alaska Science Center, Ecosystems, Energy & Wildlife, Region 11: Alaska, United States of America, Upper Midwest Water Science Center, Water Resources, Water, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, United States of America, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Cooperative Research Units, Cooperative Research Units, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Water Resources, , Cooperative Research Units, Cooperative Research Units, Southwest Climate Adaptation Science Center, Land Resources, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Fort Collins Science Center, Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Western Ecological Research Center, Ecosystems, Western Ecological Research Center, Ecosystems, , United States of America, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 11: Alaska, United States of America, Water, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, United States of America, Ohio Water Microbiology Laboratory, , Volcano Hazards Program Office, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, California, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Pacific Coastal and Marine Science Center, Cooperative Research Units, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Water Resources, , Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Cooperative Research Units, Cooperative Research Units, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Upper Midwest Environmental Sciences Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, National Wildlife Health Center, Ecosystems, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Fort Collins Science Center, Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Western Ecological Research Center, Ecosystems, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, , Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Water, Ohio-Kentucky-Indiana Water Science Center, Indiana, United States of America, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Cooperative Research Units, , Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Minerals, National Minerals Information Center, Energy and Minerals, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Natural Hazards, , Natural Hazards, Volcano Hazards Program Office, United States of America, Northeast Climate Adaptation Science Center, Land Resources, Region 1: North Atlantic-Appalachian, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Pacific Island Ecosystems Research Center, Ecosystems, Northwest - Pacific Islands, Pacific Island Ecosystems Research Center, Ecosystems, Northwest - Pacific Islands, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Upper Midwest Water Science Center, Water Resources, Southwest Biological Science Center, Ecosystems, , Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Maryland-Delaware-D.C. Water Science Center, Water Resources, United States of America, Western Fisheries Research Center, Ecosystems, Fisheries Program, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, National Geospatial Program, United States of America, 3D Elevation Program, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, , Water Resources, , United States of America, Reston Microbiology Laboratory, Oceans, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, Hurricane Sandy, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, New England Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Netherlands, Water Resources, , Water Resources, , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Eastern Geographic Science Center, Region 1: North Atlantic-Appalachian, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, John Wesley Powell Center for Analysis and Synthesis, Fort Collins Science Center, Ecosystems, Biology and Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Louisiana, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Fort Collins Science Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Great Lakes Science Center, Ecosystems, Wildlife Program, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Cooperative Research Units, Water Resources, , Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Oklahoma, United States of America, Western Geographic Science Center, Fort Collins Science Center, Ecosystems, Nevada Water Science Center, Water Resources, United States of America, Water, California Water Science Center, Water Resources, Mineral Resources Program, Region 7: Upper Colorado Basin, Idaho, United States of America, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Water Resources, United States of America, California Water Science Center, Water Resources
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Lindsey, B.D., Ayotte, J.D., Jurgens, B.C., Desimone, L.A., 2017, Using Groundwater Age Distributions to Understand Changes in Methyl tert-butyl ether (MtBE) Concentrations, Northeastern United States, Science of the Total Environment, v 579, 1 February 2017, p. 579-587. http://dx.doi.org/10.1016/j.scitotenv.2016.11.058.
Year Published: 2016
Groundwater quality in the Northern Atlantic Coastal Plain aquifer system, eastern United States
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Northern Atlantic Coastal Plain aquifer system constitutes one of...
Lindsey, Bruce D.; Belitz, KennethAttribution: Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Colorado, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Mexico, Southwest Biological Science Center, Ecosystems, Status and Trends Program, , United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Cooperative Research Units, Alaska Science Center, Groundwater and Streamflow Information Program, Region 11: Alaska, , Washington Water Science Center, Water Resources, Cooperative Research Units, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Arizona Water Science Center, Water Resources, , United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geology, Minerals, Energy, and Geophysics Science Center, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, John Wesley Powell Center for Analysis and Synthesis, National Wildlife Health Center, Ecosystems, Office of Science Quality and Integrity, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Cooperative Research Units, , Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, , Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, Florida, United States of America, Fort Collins Science Center, Ecosystems, Water Resources, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Pacific Islands Water Science Center, Water Resources, Northwest - Pacific Islands, Hawaii, United States of America, Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Southwest Biological Science Center, Ecosystems, Land Change Science Program, United States of America, Cooperative Research Units, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, , Virginia and West Virginia Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Virginia and West Virginia Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, , Energy and Minerals, Science and Decisions Center, Cooperative Research Units, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, , Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, United States of America, , Science and Decisions Center, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), North Carolina, New England Water Science Center, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Core Science Systems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, California Water Science Center, Water Resources, South Atlantic Water Science Center (SAWSC), Environmental Health, Toxic Substances Hydrology Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, California, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Global Seismographic Network, Region 7: Upper Colorado Basin, United States of America, Fort Collins Science Center, Ecosystems, Fort Collins Science Center, Ecosystems, Land Change Science Program, United States of America, National Wildlife Health Center, Ecosystems, Water Resources, , Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, South America, California Water Science Center, Water Resources, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, , Cooperative Research Units, Cooperative Research Units, , Energy and Minerals, Science and Decisions Center, Northeast Climate Adaptation Science Center, Land Resources, Region 1: North Atlantic-Appalachian, Core Science Systems, Science Analytics and Synthesis (SAS), United States of America, Cooperative Research Units, California Water Science Center, Water Resources, Water Resources, , Energy & Wildlife, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, , Volcano Hazards Program Office, Alaska Science Center, Ecosystems, Region 11: Alaska, John Wesley Powell Center for Analysis and Synthesis, Water Resources, Region 7: Upper Colorado Basin, United States of America, John Wesley Powell Center for Analysis and Synthesis, Fort Collins Science Center, Ecosystems, National Wildlife Health Center, Ecosystems, , Energy and Minerals, Science and Decisions Center, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Cooperative Research Units, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Eastern Mineral and Environmental Resources Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Alaska Science Center, Region 11: Alaska, United States of America, , Volcano Hazards Program Office, Cooperative Research Units, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Upper Midwest Water Science Center, Water Resources, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, California Water Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Volcano Hazards Program Office, United States of America, , Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, United States of America, Water Resources, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, Molecular Ecology Laboratory, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Western Geographic Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Pacific Coastal and Marine Science Center, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, , Volcano Hazards Program Office, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Water Resources, Water Resources
View Citation
Lindsey, Bruce, and Belitz, Kenneth, 2016, Groundwater quality in the Northern Atlantic Coastal Plain aquifer system, Eastern United States: U.S. Geological Survey Fact Sheet 2016-3078, 4 p., http://dx.doi.org/10.3133/fs20163078.
Year Published: 2016
Groundwater quality in the Southeastern Coastal Plain aquifer system, southeastern United States
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Southeastern Coastal Plain aquifer system ...
Barlow, Jeannie; Lindsey, Bruce D.; Belitz, KennethAttribution: Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Colorado, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Mexico, Southwest Biological Science Center, Ecosystems, Status and Trends Program, , United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Cooperative Research Units, Alaska Science Center, Groundwater and Streamflow Information Program, Region 11: Alaska, , Washington Water Science Center, Water Resources, Cooperative Research Units, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Arizona Water Science Center, Water Resources, , United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geology, Minerals, Energy, and Geophysics Science Center, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, John Wesley Powell Center for Analysis and Synthesis, National Wildlife Health Center, Ecosystems, Office of Science Quality and Integrity, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Cooperative Research Units, , Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, , Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, Florida, United States of America, Fort Collins Science Center, Ecosystems, Water Resources, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Pacific Islands Water Science Center, Water Resources, Northwest - Pacific Islands, Hawaii, United States of America, Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Southwest Biological Science Center, Ecosystems, Land Change Science Program, United States of America, Cooperative Research Units, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, , Virginia and West Virginia Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Virginia and West Virginia Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, , Energy and Minerals, Science and Decisions Center, Cooperative Research Units, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, , Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, United States of America, , Science and Decisions Center, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), North Carolina, New England Water Science Center, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Core Science Systems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, California Water Science Center, Water Resources, South Atlantic Water Science Center (SAWSC), Environmental Health, Toxic Substances Hydrology Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, California, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Global Seismographic Network, Region 7: Upper Colorado Basin, United States of America, Fort Collins Science Center, Ecosystems, Fort Collins Science Center, Ecosystems, Land Change Science Program, United States of America, National Wildlife Health Center, Ecosystems, Water Resources, , Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, South America, California Water Science Center, Water Resources, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, , Cooperative Research Units, Cooperative Research Units, , Energy and Minerals, Science and Decisions Center, Northeast Climate Adaptation Science Center, Land Resources, Region 1: North Atlantic-Appalachian, Core Science Systems, Science Analytics and Synthesis (SAS), United States of America, Cooperative Research Units, California Water Science Center, Water Resources, Water Resources, , Energy & Wildlife, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, , Volcano Hazards Program Office, Alaska Science Center, Ecosystems, Region 11: Alaska, John Wesley Powell Center for Analysis and Synthesis, Water Resources, Region 7: Upper Colorado Basin, United States of America, John Wesley Powell Center for Analysis and Synthesis, Fort Collins Science Center, Ecosystems, National Wildlife Health Center, Ecosystems, , Energy and Minerals, Science and Decisions Center, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Cooperative Research Units, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Eastern Mineral and Environmental Resources Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Alaska Science Center, Region 11: Alaska, United States of America, , Volcano Hazards Program Office, Cooperative Research Units, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Upper Midwest Water Science Center, Water Resources, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, California Water Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Volcano Hazards Program Office, United States of America, , Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, United States of America, Water Resources, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, Molecular Ecology Laboratory, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Western Geographic Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Pacific Coastal and Marine Science Center, Leetown Science Center, Ecosystems, Region 1: North 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Barlow, Jeannie R.B., and Belitz, Kenneth, 2016, Groundwater quality in the Southeastern Coastal Plain aquifer system, Southeastern United States: U.S. Geological Survey Fact Sheet 2016-3076, 4 p., http://dx.doi.org/10.3133/fs20163076.
Date published: September 12, 2019
Groundwater age-dating simplified
A new USGS report documents a simple method to classify groundwater age as premodern (recharged before 1953), modern (recharge in 1953 or later), or a mix of the two. The method—tritium-based age classification, or TBAC—requires just a single measurement of tritium, along with knowledge of sample date and location...
Attribution: Water Resources, National Water Quality Program
Date published: December 7, 2017
Groundwater Quality in the Midwest: The Cambrian-Ordovician Aquifer System
A regional assessment of untreated groundwater in the Cambrian-Ordovician aquifer system, which includes parts of Minnesota, Wisconsin, Michigan, Iowa, Illinois, Missouri and Indiana, is now available from the U.S. Geological Survey.
Date published: December 7, 2017
Groundwater Quality in the Southwest: The Rio Grande Aquifer System
A regional assessment of untreated groundwater in the Rio Grande aquifer system, which includes parts of Colorado, New Mexico and Texas, is now available from the U.S. Geological Survey.
Date published: January 19, 2017
Groundwater Quality in Eastern U.S.
A regional assessment of untreated groundwater in the combined Valley and Ridge and Piedmont and Blue Ridge aquifers in the eastern United States is now available from the U.S. Geological Survey.
Date published: January 19, 2017
Groundwater Quality in the Northern Atlantic Coastal Plain Aquifer System
A regional assessment of untreated groundwater in the Northern Atlantic Coastal Plain aquifer system in the eastern United States is now available from the U.S. Geological Survey.