PUCPR Search for 'an:103818'

Summary appraisals of the Nation's ground-water resources--Caribbean region

By Gomez-Gomez, Fernando..
Washington U.S. Govt. Print. Off. | for sale by the Supt. of Docs., GPO 1980 .
vi, 32 p. 29 cm..

Sedimentation survey of Lago Dos Bocas, Puerto Rico, August 1994

By Webb, Richard M. T..
San Juan, P.R. | Denver, CO U.S. Dept. of Interior, U.S. Geological Survey | Earth Science Information Center, Open-File Reports Section (distributor) 1996 .
v, 20 p. 28 cm..

Geohydrology and simulation of ground-water flow in the Salinas to Patillas area, Puerto Rico

By Quiñones-Aponte, Vicente..
San Juan, P.R. (651 Federal Dr., Suite 400-15, Guaynabo 00965) | Denver, CO U.S. Dept. of the Interior, U.S. Geological Survey | Earth Science Information Center, Open-File Reports Section 1996 .
v, 37 p. , Shipping list no.: 96-0175-P. 28 cm..

Assessment of nitrate contamination of the upper aquifer in the Manatí-Vega Baja area, Puerto Rico

By Conde-Costas, Carlos..
San Juan, P.R. | Denver, CO U.S. Dept. of the Interior, U.S. Geological Survey | Branch of Information Services [distributor] 1999 .
v, 43 p. , Shipping list no.: 99-0235-P. 28 cm..

Hydrologic, water-quality, and biological assessment of Laguna de las Salinas, Ponce, Puerto Rico, January 2003-September 2004

Reston, Va. U.S. Dept. of the Interior, U.S. Geological Survey 2005 .
vi, 50 p. 28 cm..