1. Potentiometric surface and hydrologic conditions the south coast aquifer, Santa Isabel area, Puerto Rico, March-April, 2014 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2020 Resource Type: Map Access & Availability: Loading
2. Potentiometric surface of the alluvial aquifer and hydrologic conditions at the Río Nigua de Salinas alluvial fan, Salinas, Puerto Rico, July 9-11, 2002 Author/Creator: Rodríguez, José M. Publication/Creation: [Reston, Va.?] : U.S. Geological Survey, [2006] Resource Type: Map Access & Availability: Loading