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Caribbean Water Science Center

Laboratory Information:

Caribbean Water Science Center
651 Federal Drive
Suite 400-15
Guaynabo, PR 00965-5703
Phone: 787-749-4346
Fax: 787-749-4462
Website: http://pr.water.usgs.gov/
Agency/Department: Dept. of Interior
Region: Northeast

Background/History of the Laboratory:

The USGS is responsible for fulfilling the Nation's needs for reliable, impartial scientific information to describe and understand the Earth. The USGS Caribbean Water Science Center (CWSC) was established in 1958 to monitor and enhance water resources in Puerto Rico and the U.S. Virgin Islands.


Mission of the Laboratory:

The primary mission of the USGS CWSC is to collect, compile, analyze, and distribute hydrologic information to promote best use and management of water resources for the benefit of the people and the natural environment. This water-resource monitoring and investigation program is carried out in cooperation with many local and federal agencies. The program includes studies that focus on surface- and ground-water availability and water quality, stream-sediment concentration, and sedimentation rates in reservoirs.

The CWSC collects and compiles:
  • Water level and discharge data at 100 stream-gaging stations,
  • Suspended sediment-discharge records for 40 streamflow stations,
  • Water-level records for 18 reservoirs,
  • Water-quality records for 16 stream-gaging stations, 42 ungaged stream sites, 11 lake sites, 2 lagoons, and 1 bay,
  • Ground-water-level records for 107 observation wells. These data are collected at stations established and maintained by the CWSC at selected locations throughout Puerto Rico and the U.S. Virgin Islands,
  • Rainfall records at 132 stations (104 of these rain gages are located at surface -water stations), and
  • Meteorological records (wind speed and direction, sun intensity, evaporation potential) at 5 stations.