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Open-File Report 2014–1117

Prepared in cooperation with the Puerto Rico Aqueduct and Sewer Authority, Puerto Rico Department of Natural and Environmental Resources, and Puerto Rico Environmental Quality Board

Estimated Water Use in Puerto Rico, 2010

By Wanda L. Molina-Rivera

Thumbnail of and link to report PDF (11.6 MB)Abstract

Water-use data were aggregated for the 78 municipios of the Commonwealth of Puerto Rico for 2010. Five major offstream categories were considered: public-supply water withdrawals and deliveries, domestic and industrial self-supplied water use, crop-irrigation water use, and thermoelectric-power freshwater use. One instream water-use category also was compiled: power-generation instream water use (thermoelectric saline withdrawals and hydroelectric power). Freshwater withdrawals for offstream use from surface-water [606 million gallons per day (Mgal/d)] and groundwater (118 Mgal/d) sources in Puerto Rico were estimated at 724 million gallons per day. The largest amount of freshwater withdrawn was by public-supply water facilities estimated at 677 Mgal/d. Public-supply domestic water use was estimated at 206 Mgal/d. Fresh groundwater withdrawals by domestic self-supplied users were estimated at 2.41 Mgal/d. Industrial self-supplied withdrawals were estimated at 4.30 Mgal/d. Withdrawals for crop irrigation purposes were estimated at 38.2 Mgal/d, or approximately 5 percent of all offstream freshwater withdrawals. Instream freshwater withdrawals by hydroelectric facilities were estimated at 556 Mgal/d and saline instream surface-water withdrawals for cooling purposes by thermoelectric-power facilities was estimated at 2,262 Mgal/d.

First posted August 28, 2014

  • Appendix A1 XLSX (215 kB)
    Estimated public-supply water deliveries, population served and per capita deliveries in Puerto Rico by ward and municipio, 2010

For additional information contact:
Director, Caribbean Water Science Center
U.S. Geological Survey
GSA Center, 651 Federal Drive
Suite 400–15
Guaynabo, PR 00965–5703

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Suggested citation:

Molina-Rivera, W.L., Estimated water use in Puerto Rico, 2010: U.S. Geological Survey Open-File Report 2014–1117, 35 p.,

ISSN 2331-1258 (online)





Purpose and Scope

Data-Compilation Procedures

Water Use by Category and Source of Water

Total Water Use


References Cited

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