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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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Hydrologic and hydraulic analyses of selected streams in Richland County, Ohio Hydrologic and hydraulic analyses of selected streams in Richland County, Ohio
Hydrologic and hydraulic analyses were done for selected reaches of Clear Fork Mohican River and Cedar Fork in Richland County, Ohio. To update and expand a portion of the Federal Emergency Management Agency detailed Flood Insurance Study, the U.S. Geological Survey (USGS) and the Muskingum Watershed Conservancy District initiated a cooperative study. The study comprised an 18.6-mile...
Authors
Chad J. Ostheimer
Water resources of Tensas Parish, Louisiana Water resources of Tensas Parish, Louisiana
Information concerning the availability, use, and quality of water in Tensas Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, 38.01 million gallons per day (Mgal/d) of water were withdrawn in Tensas...
Authors
Vincent E. White
Assessment of the presence of sewage in the Mill River under low-flow conditions, Springfield, Massachusetts, 2010–11 Assessment of the presence of sewage in the Mill River under low-flow conditions, Springfield, Massachusetts, 2010–11
The U.S. Geological Survey, in cooperation with the Pioneer Valley Planning Commission, the U.S. Environmental Protection Agency, and the Massachusetts Department of Environmental Protection Senator William X. Wall Experiment Station, assessed the presence of 14 commonly used human-health pharmaceutical compounds, fecal indicator bacteria, and other man-made compounds indicative of the...
Authors
Andrew J. Massey, Marcus C. Waldron, R. Jean Tang, Thomas G. Huntington
Adaptive harvest management for the Svalbard population of pink‐footed geese: 2019 progress summary Adaptive harvest management for the Svalbard population of pink‐footed geese: 2019 progress summary
This report describes an Adaptive Harvest Management (AHM) program designed to maintain the Svalbard population of Pink-footed Geese (Anser brachyrhynchus) near their target level (60,000) by providing sustainable harvests in Norway and Denmark. Specifically, this report provides recent monitoring and assessment results and their implications for the 2019 hunting season. In this report...
Authors
Fred Johnson, Henning Heldbjerg, Kevin K. Clausen, Jesper Madsen
Interpretation of dye tracing data collected November 13–December 2, 2017, at the Savoy Experimental Watershed as part of the Advanced Groundwater Field Techniques in Karst Terrains course, Savoy, Arkansas Interpretation of dye tracing data collected November 13–December 2, 2017, at the Savoy Experimental Watershed as part of the Advanced Groundwater Field Techniques in Karst Terrains course, Savoy, Arkansas
The first course on the use of advanced groundwater field techniques for karst aquifers was conducted November 13–17, 2017, at the University of Arkansas Savoy Experimental Watershed (SEW), which is located on pastures for beef livestock research conducted by the Department of Animal Sciences at the University of Arkansas at Savoy, Arkansas. The SEW is an interdisciplinary, collaborative...
Authors
Eve L. Kuniansky, Joshua M. Blackstock, Daniel M. Wagner, J. Van Brahana
Assessment of continuous oil and gas resources in the Beetaloo Basin, Australia, 2018 Assessment of continuous oil and gas resources in the Beetaloo Basin, Australia, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 429 million barrels of continuous oil and 8 trillion cubic feet of continuous gas in the Beetaloo Basin of northern Australia.
Authors
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Thomas M. Finn, Kristen R. Marra, Michael E. Brownfield, Heidi M. Leathers-Miller, Ronald M. Drake
Regional hydraulic geometry characteristics of stream channels in the Ouachita Mountains of Arkansas Regional hydraulic geometry characteristics of stream channels in the Ouachita Mountains of Arkansas
Many stream channel infrastructure, habitat, and restoration projects are being undertaken on small streams throughout Arkansas by various Federal, State, and local agencies and by private organizations and businesses with limited data on local geomorphology and streamflow relations. Equations are needed that relate drainage area above stable stream reaches and the associated basin...
Authors
Aaron L. Pugh, Ronald K. Redman
Assessment of tight-oil and tight-gas resources in the Junggar and Santanghu Basins of Northwestern China, 2018 Assessment of tight-oil and tight-gas resources in the Junggar and Santanghu Basins of Northwestern China, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 241 million barrels of tight oil and 10.1 trillion cubic feet of tight gas in the Junggar and Santanghu Basins of northwestern China.
Authors
Christopher J. Potter, Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Thomas M. Finn, Cheryl A. Woodall, Heidi M. Leathers-Miller, Kristen R. Marra, Phuong A. Le, Ronald M. Drake, Michael E. Brownfield, Janet K. Pitman
Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida
The South District Wastewater Treatment Plant in southeastern Miami-Dade County, Florida, includes a Class I treated wastewater injection well system. The detection of ammonia in monitoring zones above the injection zone in the Lower Floridan aquifer has elicited a need to understand the nature of confinement within the Lower Floridan aquifer as it pertains to the vertical migration of...
Authors
Kevin L. DeFosset, Kevin J. Cunningham
Water Resources of West Carroll Parish, Louisiana Water Resources of West Carroll Parish, Louisiana
Information concerning the availability, use, and quality of water in West Carroll Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, 21.27 million gallons per day (Mgal/d) of water were withdrawn in...
Authors
Vincent E. White
Water resources of Morehouse Parish, Louisiana Water resources of Morehouse Parish, Louisiana
Information concerning the availability, use, and quality of water in Morehouse Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, 109.84 million gallons per day (Mgal/d) of water were withdrawn in...
Authors
Vincent E. White
Evaluation of land subsidence and ground failures at Bicycle Basin, Fort Irwin National Training Center, California, 1992–2017 Evaluation of land subsidence and ground failures at Bicycle Basin, Fort Irwin National Training Center, California, 1992–2017
Groundwater has been pumped in the Bicycle Basin at Fort Irwin National Training Center since the 1960s, and the amount pumped has generally increased since the 1990s. After a large crack (approximately 0.5-kilometer long) formed at the surface of Bicycle Lake playa during 2005–06 in the area used as an aircraft runway, a monitoring study was initiated by the U.S. Geological Survey, in...
Authors
Jill N. Densmore, Kevin M. Ellett, Michelle Sneed, Justin T. Brandt, James F. Howle, Andrew Y. Morita, Rodrigo Borela, Antonio Bobet, Drew C. Thayer