Hydrogeology and simulation of ground-water flow in the upper aquifer of the Río Grande de Manatí area, Puerto Rico

by Torres-González, Sigfredo.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Earth Science Information Center, Open-File Reports Section [distributor], 1996

Compilation of ground-water level measurements, obtained by the United States Geological Survey in Puerto Rico, 1958-1985

by Torres-González, Sigfredo.
Published: Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports [distributor], 1991

Ground-water resource assessment in the Río Grande de Manatí alluvial plain, Río Arriba Saliente area, Puerto Rico

by Torres-González, Sigfredo.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 2002

Reconnaissance of the ground-water resources of Vieques Island, Puerto Rico

by Torres-González, Sigfredo,
Published: U.S. Geological Survey, 1989

Potentiometric surface of the Kings Hill aquifer and hydrologic conditions in Saint Croix, U.S. Virgin Islands, July 1987

by Geological Survey (U.S.). Water Resources Division. Caribbean District,
Published: U.S. Geological Survey, Water Resources Division, Caribbean District, 1990