Books by Puerto Rico. Environmental Quality Board:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
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)
- 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)
Find more by Puerto Rico. Environmental Quality Board at your library, or elsewhere.