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Real-time Water Levels for Reservoirs in Puerto Rico

Upstream view of Lago Dos Bocas reservoir.  Photo by Matthew Larsen, USGS.
Nearly 45 percent of public water supply is provided by the reservoirs of Puerto Rico. There are currently eight major water supply reservoirs in Puerto Rico, and they are Lago Guajataca, Lago Loíza, Lago La Plata, Lago de Cidra, Lago Toa Vaca, Lago Cerrillos, Lago Caonillas, and Lago Dos Bocas.

The U.S. Geological Survey (USGS), in cooperation with the Puerto Rico Electric Power Authority (PREPA) and Puerto Rico Aqueduct and Sewer Authority (PRASA), has a long-term program of monitoring reservoir levels and water quality.  In addition, the USGS has conducted a number of sedimentation surveys of water supply reservoirs to determine how fast the water storage capacity of these reservoirs is being reduced by infilling sediment.  Recently, the USGS has summarized the results of these reservoir sedimentation surveys. They found that a number of reservoirs, but particularly Lago Loíza and Lago Dos Bocas, are filling more rapidly than was projected at the time they were built.

To learn more about a particular reservoir, including current reservoir levels, click on the name of the reservoir below.

Select a station number to view graph(s) and other data for the station.
A table of recent rainfall is also available.

Provisional Data Subject to Revision


Station
Number

Station Name

Río Guajataca Basin, PR
50010800  Lago Guajataca at Damsite
Río Grande de Arecibo Basin, PR
50026140  Lago Caonillas at Damsite
50027100  Lago Dos Bocas at Damsite
Río de la Plata Basin, PR
50045000  Lago La Plata at Damsite
Río de Bayamón Basin, PR
50047550  Lago de Cidra at Damsite
Río Grande de Loíza Basin, PR
50059000  Lago Loíza at Damsite
Río Jacaguas Basin, PR
50111210  Lago Toa Vaca at Damsite
Río Bucaná Basin, PR
50113950  Lago Cerrillos at Damsite

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Last update: Aug 13, 2004, 09:05
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