Southeast Region | U.S. Geological Survey Official websites use .gov .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS lock ( or means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. From monitoring stream flow in the Smoky Mountains... Real-time data ...to informing restoration efforts in the Florida Everglades ...to tracking storm-related flood conditions through the South Atlantic... More information ...to investigating coral health in the Florida Keys & Caribbean... USGS coral research ...to assessing environmental contaminants on aquatic life in the Mississippi River Basin... ...USGS science spans the South Atlantic, Gulf States and Caribbean The Southeast Region includes 13 states and two U.S. territories, Puerto Rico and the U.S. Virgin Islands USGS in USVI & PR Southeast Region Data Maps Multimedia Publications Web Tools Software News Connect Partners Southeast Region We conduct impartial, multi- and interdisciplinary research and monitoring to address a broad range of natural-resource issues that affect the quality of life of citizens and landscapes in the Southeastern United States and the Caribbean region. AquaDePTH: Merging Aquatic Disease Surveillance Data into One Useful Tool December 2, 2025 AquaDePTH: Merging Aquatic Disease Surveillance Data into One Useful Tool USGS Geologic Mapping Project Supports Critical Mineral Exploration, Enhances Public Safety in the Southeast July 23, 2025 USGS Geologic Mapping Project Supports Critical Mineral Exploration, Enhances Public Safety in the Southeast Ecological Thresholds, Abiotic Stress, and Climate Change: A Conceptual Framework June 16, 2025 Ecological Thresholds, Abiotic Stress, and Climate Change: A Conceptual Framework View All April 10, 2026 Phytoplankton responses to experimental nitrogen and phosphorus loading in the eutrophic and colored Caloosahatchee River, Florida Phytoplankton responses to experimental nitrogen and phosphorus loading in the eutrophic and colored Caloosahatchee River, Florida The Caloosahatchee River, located in southwest Florida, is a eutrophic and colored river that flows from Lake Okeechobee westward into its estuary and the Gulf of America. Cyanobacterial harmful algal blooms (HABs) are a documented problem along this freshwater-to-marine waterway where nutrient enrichment has been identified as a key factor in bloom occurrence but has not been... Authors Viviana Mazzei, Keith A. Loftin, Emily Karwacki, Jose V. Lopez, Lauren E. Krausfeldt, Barry H. Rosen, Hidetoshi Urakawa By Caribbean-Florida Water Science Center (CFWSC) April 9, 2026 Simulation of groundwater flow to evaluate hydrogeologic controls on a PFAS plume, Coakley Landfill Superfund Site, Rockingham County, New Hampshire Simulation of groundwater flow to evaluate hydrogeologic controls on a PFAS plume, Coakley Landfill Superfund Site, Rockingham County, New Hampshire Per- and polyfluoroalkyl substances (PFAS), including perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), have been detected at combined concentrations above 2,000 nanograms per liter (ng/L) at groundwater seep locations near the Coakley Landfill Superfund site, in North Hampton, New Hampshire. The landfill was active from 1972 to 1985. An impermeable cap was placed on... Authors Phil Harte, Andrew L. Collins By New England Water Science Center April 1, 2026 Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables Streamflows in Massachusetts have set record lows in recent years despite generally wetter conditions than during the drought of the 1960s, and the reasons for this are not known. To analyse potential drivers of low streamflows in Massachusetts, six low-flow metrics were computed at 107 streamgages. These metrics represent low-flow magnitude, magnitude normalized to median flows, and... Authors Catherine A. Chamberlin, Glenn Hodgkins By New England Water Science Center View All May 19, 2029 Mobile River Basin Study The Mobile River Basin in Alabama, Georgia, Mississippi, and Tennessee is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources, and to provide a sound... By Lower Mississippi-Gulf Water Science Center Mobile River Basin Study May 19, 2029 Mobile River Basin Study The Mobile River Basin in Alabama, Georgia, Mississippi, and Tennessee is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources, and to provide a sound... April 22, 2026 South Atlantic Water Science Center Drought Monitoring When rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth to water in wells increases. If dry weather persists and water-supply problems develop, the dry period can become a drought. By South Atlantic Water Science Center (SAWSC) Drought South Atlantic Water Science Center Drought Monitoring April 22, 2026 South Atlantic Water Science Center Drought Monitoring When rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth to water in wells increases. If dry weather persists and water-supply problems develop, the dry period can become a drought. March 12, 2026 Triangle Area, NC, Water Supply Monitoring The Research Triangle area, located within the upper Cape Fear and Neuse River basins, is one of the most rapidly developing areas in the Nation. Growth has increased demand for water from public suppliers, the majority of which draw water from streams and lakes in the region. Growth also brings the threat of greater loads of contaminants and new contaminant sources that, if not properly managed... By South Atlantic Water Science Center (SAWSC) Triangle Area, NC, Water Supply Monitoring March 12, 2026 Triangle Area, NC, Water Supply Monitoring The Research Triangle area, located within the upper Cape Fear and Neuse River basins, is one of the most rapidly developing areas in the Nation. Growth has increased demand for water from public suppliers, the majority of which draw water from streams and lakes in the region. Growth also brings the threat of greater loads of contaminants and new contaminant sources that, if not properly managed... View All Was this page helpful?