The streamflow-data program of the U.S. Geological Survey (USGS) in Puerto Rico has been one of the principal parts of an overall appraisal of the water resources of the Island since the initiation of a cooperative agreement with agencies of the Commonwealth Government in 1957. The streamflow-station network has increased in direct response to demand for data to support planning for the rapidly accelerated industrial and population growth that has occurred since.
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USGS Numbered Series
A proposed streamflow-data program for Puerto Rico