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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Analysis of alternative weir designs for improved passage of select fish at the U.S. Geological Survey streamgaging weir at Blackwells Mills, New Jersey Analysis of alternative weir designs for improved passage of select fish at the U.S. Geological Survey streamgaging weir at Blackwells Mills, New Jersey
As the population of New Jersey continues to remain dense, the need for water supply will likely continue to be high, which can lead to water managers needing to make difficult decisions about managing drinking-water supply. Streamgaging weirs like the ones used by the U.S. Geological Survey (USGS) play a critical role in providing accurate and stable streamflow data, but their presence...
Authors
Thomas P. Suro, Michal J. Niemoczynski, Kevin B. Mulligan
Preliminary geologic map of the Sparta East, Sparta West, and parts of the Glade Valley and Whitehead 7.5-minute quadrangles, North Carolina and Virginia, and the epicentral area of the August 9, 2020, Mw 5.1 earthquake near Sparta, North Carolina Preliminary geologic map of the Sparta East, Sparta West, and parts of the Glade Valley and Whitehead 7.5-minute quadrangles, North Carolina and Virginia, and the epicentral area of the August 9, 2020, Mw 5.1 earthquake near Sparta, North Carolina
Authors
Arthur J. Merschat, Mark W. Carter, Ashley S. Lynn, Benjamin R. Weinmann, William E. Odom, Ryan J. McAleer, Shannon A. Mahan, Kevin G. Stewart, Christopher S. Holm-Denoma, E. Allen Crider,
An automated geographic information system-based hydraulic modeling tool for developing preliminary culvert designs for stream crossings in Massachusetts An automated geographic information system-based hydraulic modeling tool for developing preliminary culvert designs for stream crossings in Massachusetts
Authors
Gardner C. Bent, Brendan A. McCarthy, Luke P. Sturtevant, Meghan A. McCallister, Amanda L. Tudor, Ian P. Armstrong, Mark W. Poe, Alexander P. Graziano, Carl S. Carlson
Informing policy response to declining water supply in the Colorado River basin: Linking water supply management with outcomes for fish communities Informing policy response to declining water supply in the Colorado River basin: Linking water supply management with outcomes for fish communities
Water-supply managers in the Colorado River Basin are tasked with balancing consumptive water use with natural water supply. Decisions associated with water-supply policy can include where and how much water consumption occurs, where water could be stored, and how to operate reservoirs. Water-supply decisions often affect other resources including energy production, recreation and...
Authors
John C. Schmidt, Charles B. Yackulic
Geochemical geodatabase of sedimentary strata (coal, coal-adjacent rocks, tuffaceous oil shale, phosphate-rich rocks) and produced water in the Uinta region, Utah and Colorado Geochemical geodatabase of sedimentary strata (coal, coal-adjacent rocks, tuffaceous oil shale, phosphate-rich rocks) and produced water in the Uinta region, Utah and Colorado
The Geochemical Geodatabase of Sedimentary Strata (Coal, Coal-adjacent Rocks, Tuffaceous Oil Shale, Phosphate-rich Rocks) and Produced Water in the Uinta Region, Utah and Colorado, consists of compiled datasets acquired as part of the Carbon Ore, Rare Earth, and Critical Mineral (CORE-CM) Uinta Region assessment funded by the U.S. Department of Energy (DEFE0032046, 2021–2024; Birgenheier...
Authors
Ryan D. Gall, Lauren Birgenheier, Peyton Fausett, Haley Coe, Emma Morris, Diego P. Fernandez, L. Wilcock, Michael Vanden Berg, Andrew L. Masterson, Aaron M. Jubb, Justin E. Birdwell, Logan Ashurst-McGee, Nicholas Bailey, Andrew Giebel, Amanda Sha Herzberg, Jessica Chenault, Brittney Hoskins
Science for drought response Science for drought response
Droughts impact water availability and quality, agriculture, energy production, ecosystem health, cultural resources, and wildfire risk. In an average year, nearly 15% of the US experiences significant drought, and in some recent years, drought conditions have impacted more than a third of the nation (U.S. Drought Monitor). The U.S. Geological Survey (USGS) Climate Adaptation Science...
Authors
Tamara Wilson, Stephanie Anne McAfee
Understanding the occurrence and distribution of per- and polyfluoroalkyl substances (PFAS) in surface waters of the nontidal Passaic River Basin Understanding the occurrence and distribution of per- and polyfluoroalkyl substances (PFAS) in surface waters of the nontidal Passaic River Basin
This study, completed by the U.S. Geological Survey in cooperation with the North Jersey District Water Supply Commission (NJDWSC), was designed to characterize the occurrence and distribution of per- and polyfluoroalkyl substances (PFAS) in surface waters of the nontidal Passaic River Basin in New Jersey that have the potential to affect public-drinking-water quality. In 2025, 37 sites...
Authors
Molly L. Schreiner, Kristin M. Romanok, Jacob T. Gray, Eileen J. Brown, Brianna M. Williams, Maureen Kneser, Albert J. Capuzzi, Jason Boerner, Luke Giunta, Paul Serillo, John J. Trainor, Kelly L. Smalling
Assessment of long-term trends in streamflow statistics within and near the Mobile Bay and Perdido Bay watersheds, United States, 1950–2022 Assessment of long-term trends in streamflow statistics within and near the Mobile Bay and Perdido Bay watersheds, United States, 1950–2022
The U.S. Geological Survey, in cooperation with the Gulf Coast Ecosystem Restoration Council, assessed monotonic trends for a variety of streamflow statistics for 69 long-term U.S. Geological Survey streamgages within either the Mobile Bay or Perdido Bay watersheds that were active through at least at the end of calendar year 2019. Long-term data were defined for this investigation as...
Authors
William H. Asquith, Elena R. Crowley-Ornelas, Amanda R. Whaling
Hydrologic investigation of water level fluctuations at Moreau Lake, Moreau Lake State Park, town of Moreau, New York Hydrologic investigation of water level fluctuations at Moreau Lake, Moreau Lake State Park, town of Moreau, New York
The causes of water level fluctuations at Moreau Lake, within Moreau Lake State Park in the town of Moreau, New York, were investigated from 2016 to 2021 after lake water levels dropped between 2015 and 2016, raising concerns about the loss of a shallow swimming area at the park beach. Annual variation in precipitation records from the area did not account for the lake water level...
Authors
Paul M. Heisig
Shallow hydrogeologic framework of the Tully Valley mudboil area, Onondaga County, New York Shallow hydrogeologic framework of the Tully Valley mudboil area, Onondaga County, New York
Mudboils have been documented in the Tully Valley in southern Onondaga County, New York, since the late 1890s. Sediment-laden water from the mudboils flows into Onondaga Creek, which empties into Onondaga Lake at Syracuse 15 miles to the north. Turbidity from the mudboils has degraded the water quality of Onondaga Creek despite a series of mitigation efforts that began in the early 1990s
Authors
John H. Williams, Neil C. Terry, William M. Kappel, Paul M. Heisig, Robin L. Glas, Joshua C. Woda
Peak-, mean-, and low-streamflow regional-regression equations for natural streamflow in central and western Colorado, 2019 Peak-, mean-, and low-streamflow regional-regression equations for natural streamflow in central and western Colorado, 2019
The U.S. Geological Survey (USGS), in cooperation with the Colorado Department of Transportation, developed peak-, mean-, and low-streamflow regional-regression equations for estimating various statistics for natural streamflow in hydrologic regions of central and western Colorado. The peak-streamflow regression equations were developed using data from 418 streamgages, consisting of 15...
Authors
Michael S. Kohn, M. Alisa Mast, Tara A. Gross