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Puerto Rico. Environmental Quality Board

Books from the extended shelves:

Puerto Rico. Environmental Quality Board: Assessment of nitrate contamination of the upper aquifer in the Manatí-Vega Baja area, Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1999), also by Carlos Conde-Costas, Fernando Gómez-Gómez, and Geological Survey (U.S.) (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Coastal salinity reconnaissance and monitoring system : south coast of Puerto Rico : a progress report (U.S. Geological Survey, 1974), also by José Raúl Díaz (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Electrical analog model study of the alluvial aquifer in the Yabucoa Valley, Puerto Rico : phase 2, the planning, construction, and use of the model (U.S. Geological Survey], 1973), also by Tully M. Robison, Robert B. Anders, and Geological Survey (U.S.) (page images at HathiTrust; US access only)
Puerto Rico. Environmental Quality Board: Estimated water use in Puerto Rico, 1986-87 (U.S. Geological Survey ;, 1995), also by Wanda L. Molina-Rivera, Teresa Dopazo, Geological Survey (U.S.), Puerto Rico. Department of Natural and Environmental Resources, and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Hydrology, water quality, and potential alternatives for water-resources development in the Río Majada and Río Lapa basins near the Albergue Olímpico, southern Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1994), also by Orlando Ramos-Ginés, Geological Survey (U.S.), and Center for Sport Health and Exercise Science of the Albergue Olímpico (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Low-flow characteristics at selected sites on streams in eastern Puerto Rico (U.S. Geological Survey ;, 1992), also by Luis Santiago-Rivera, Geological Survey (U.S.), and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Low-flow characteristics at selected sites on streams in northern and central Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey, ;, 1998), also by Luis Santiago-Rivera and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Low flow characteristics at selected sites on streams in southern and western Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996), also by Luis Santiago-Rivera, Geological Survey (U.S.), and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Synoptic survey of water quality and bottom sediments, San Juan Bay estuary system, Puerto Rico, December 1994-July 1995 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1998), also by Richard M. T. Webb, Fernando Gómez-Gómez, Geological Survey (U.S.), and United States. Environmental Protection Agency (page images at HathiTrust)
Puerto Rico. Environmental Quality Board: Water balance and quantification of total phosphorus and total nitrogen loads entering and leaving the Lago de Cidra, central Puerto Rico (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1997), also by Orlando Ramos-Ginés, Geological Survey (U.S.), Puerto Rico. Department of Natural and Environmental Resources, and Puerto Rico Aqueduct and Sewer Authority (page images at HathiTrust)

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