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Caribbean Water Science Center

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View of Lago Dos Bocas, Arecibo, PR.



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USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

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

Click on graph for more information.

Reservoir water surface elevation at Lago Loiza at Damsite (50059000) Reservoir water surface elevation at Lago La Plata at Damsite (50045000) Reservoir water surface elevation at Lago Toa Vaca at Damsite (50111210) Reservoir water surface elevation at Lago Cerrillos at Damsite (50113950) Reservoir water surface elevation at Lago Guajataca at Damsite (50010800) Reservoir water surface elevation at Lago Patillas at Damsite (50093045) Reservoir water surface elevation at Lago de Cidra at Damsite (50047550)

« Water Watch

Map of real-time streamflow compared to historical streamflow for the day of the year

« Recent Newsletters

Newsletter icon

Caribbean-Florida Water Science Center Newsletter Volume 2, Summer 2015.

Click here to open the newsletter (PDF)

« Map Resources

Icon representing map Map Locator and Downloder.
FREE Topographic Maps!

Map Locator and Downloader

Icon representing geologic map map National Geologic Map Database.
FREE Geologic Maps!

Map Locator and Downloader

« Climate and Land Use Change

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The USGS undertakes scientific research, monitoring, remote sensing, modeling, synthesis, and forecasting to address the effects of climate and land use change on the Nationís resources.

Icon representing climate change USGS Repeat Photography Project
Climate change research in Glacier National Park, MT entails many methods of documenting the landscape change, including the decline of the parks namesake glaciers. Repeat photography has become a valuable tool for communicating effects of global warming.

« Educational Resources

Icon representing water La Ciencia del Agua para las Escuelas. Aquí se ofrece información sobre muchos aspectos del agua, desde qué es el agua, en dónde se encuentra, hasta cómo se usa.

Icon representing geology The USGS and Science Education. Online resources, including lessons, data, maps, and more, to support teaching, learning, education (K-12), and university-level inquiry and research.

Icon representing  a frog USGS KIDS. Activities, games, coloring pages, projects, and stories that teach younger children about animals, climate change, bee population declines, wild birds, and more.

Hydrologic Conditions of Selected Observation Wells

Click on graph for the most recent information.

Reservoir water surface elevation at Lago Loiza at Damsite (50059000)

« Emergency Management Tools

« Gages Remain Unfunded

warning iconBudget shortfalls at all levels of government have caused reductions in the amount of hydrologic data collected in Puerto Rico. As of October 1, 2014, 40 USGS stream flow, stage only, lake, rainfall, water quality, and groundwater monitoring sites have been recently discontinued.

For a map of discontinued sites, go to Threatened and Endangered Stations. Although historic data for these sites will remain accessible through this web site, no new data will be collected by the USGS.

« Recent Publications

The Caribbean Water Science Center produces publications about water resources.

FS 2015-3044 Fact Sheet 2015−3044
Source, Use and Disposition of Freshwater in Puerto Rico, 2010

OFR 2014-1117 Scientific Investigation Map 2014-3219
Sedimentation survey of Lago Loíza, Trujillo Alto, Puerto Rico, July 2009

OFR 2014-1117 Open-File Report 2014-1117
Estimated Water Use in Puerto Rico, 2010

SIR 2014-5102 Scientific Investigations Report 2014-5102

Hydrogeology and Hydrology of the Punta Cabullones Wetland Area, Ponce, Southern Puerto Rico, 2007−08 

SIM 2014-3296 Hydrogeology of Puerto Rico and the Outlying Islands of Vieques, Culebra, and Mona

Search our publications

« Data via GoogleMaps

« Featured Project

« Caribbean Monitoring Networks

The USGS Caribbean Water Science Center continuously monitors surface water, ground water, and water quality parameters across the region. Monitoring sites are operated in cooperation with various local, State, or Federal agencies.

Find out about the Caribbean surface-water monitoring network.

Surface Water

Puerto Rico provides real-time water-stage, streamflow and precipitation data at 124 sites across the state.

Find out about the Caribbean ground-water monitoring network.

Ground Water

74 ground-water wells are monitored by the USGS in Puerto Rico.

Find out about the Caribbean water-quality monitoring network.

Water Quality

Water-quality conditions are continuously monitored by the USGS at 53 sites across Puerto Rico

« Other Resources

NOTICE: As of August 1, 2013, rainfall and river level data from precipitation and gaging stations for El Salvador, Guatemala, Honduras and Nicaragua may be accessed through the NOAA HADS website.

 NOAA Climatological Data (Local)

 NOAA Precipitation Data (National)

 FEMA Flood Map Service Center

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Page Last Modified: Wednesday, 18-Nov-2015 09:40:18 EST