While many OPAL libraries have resumed lending and borrowing, some continue to operate at reduced service levels or limit in-person use to their campus community. Note that pickup services and procedures may differ between libraries. Please contact your library regarding open hours, pickup procedures, specific requests, or other assistance.
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Evaluation of groundwater quality and selected hydrologic conditions in the South Coast aquifer, Santa Isabel area, Puerto Rico, 2008-09 / by José M. Rodgríguez; prepared in cooperation with the Puerto Rico Department of Natural and Environmental Resources.
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013.
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