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USGS IN YOUR STATE
USGS Water Science Centers are located in each state.
Water Resources of the Caribbean
Welcome to the USGS Caribbean Water Science Center. These pages are your source for water-resource information collected and interpreted by the U.S. Geological Survey in the Caribbean.
Hydrologic Information and Data
Hydrologic Conditions of Selected Reservoirs in Puerto Rico
Groundwater Levels at Selected Observation Wells in the South Coast of PR
Water, Energy, and Biogeochemical Budgets Program: Luquillo Mountains, PR
USGS South Florida Coastal Stations (Click on image)
Puerto Rico Active Water Level Network (Click on image)
USGS Puerto Rico Science Highlights
Hydrologic conditions in the South Coast aquifer, Puerto Rico, 2010–15
In 1958, the U.S. Geological Survey began documenting hydrologic conditions, including groundwater levels, groundwater withdrawals for agricultural irrigation and public water supply, and water quality, in the South Coast aquifer, Puerto Rico. This information has improved the understanding of the water resources of the region. The hydrologic data indicate that (1) groundwater levels declined as much as 40 feet in the Salinas area and 11 feet in the Guayama area during 2012–14; (2) groundwater withdrawals for agricultural irrigation increased from 6.0 to 10.5 million gallons per day, or 75 percent, from 2010 to 2012; and (3) total groundwater withdrawals decreased from 29.3 to 23.8 million gallons per day from 2010 to 2014. The quantity and quality of water in the aquifer is primarily affected by variations in aquifer recharge as a result of changing rainfall or modes of irrigation; however, the spatial patterns and magnitude of water withdrawals for all uses have a secondary impact on the quantity and quality of water in the aquifer.
Find out more
« Puerto Rico Water Watch
Map of real-time streamflow compared to historical streamflow for the day of the year
WaterWatch is a USGS website that displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States. The real-time information generally is updated on an hourly basis. WaterWatch provides streamgage-based maps that show the location of long-term (30 years or more) USGS streamgages; use colors to represent streamflow conditions compared to historical streamflow. Click here for more information
« Recent Newsletters
« Gages Remain Unfunded
Budget shortfalls at all levels of government continue to cause reductions in the amount of hydrologic data collected by the USGS. Please visit the USGS Threatened and Endangered Stations website to view a map of all threatened, endangered, or recently discontinued stations. Although historic data for these sites will remain accessible through NWISWeb, no new data will be collected by the USGS. For some sites, data collection has been taken over by other agencies and new data may be available through them.
« Other Resources