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portada History of Dredging and Filling of Lagoons in the San Juan, Puerto Rico: Usgs Water-Resources Investigations Report 76-38 (in English)
Type
Physical Book
Author
Publisher
Language
Inglés
Pages
34
Format
Paperback
Dimensions
24.6 x 18.9 x 0.2 cm
Weight
0.08 kg.
ISBN13
9781288938445
Categories

History of Dredging and Filling of Lagoons in the San Juan, Puerto Rico: Usgs Water-Resources Investigations Report 76-38 (in English)

S. R. Ellis (Author) · Bibliogov · Paperback

History of Dredging and Filling of Lagoons in the San Juan, Puerto Rico: Usgs Water-Resources Investigations Report 76-38 (in English) - Ellis, S. R.

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Synopsis "History of Dredging and Filling of Lagoons in the San Juan, Puerto Rico: Usgs Water-Resources Investigations Report 76-38 (in English)"

Laguna La Torrecilla, Laguna de Pinones, Laguna San Jose, and Laguna del Condado, in the San Juan, Puerto Rico area, are located within a metropolitan area of more than 1 million people. Bathymetric maps made during the study, in 1973, showed that Lagunas La Torrecilla, San Jose, and del Condado have been modified by dredging and filling; whereas, Laguna de Pinones has remained in a near natural state. Laguna La Torrecilla has been dredged to a depth, in places, of about 18 meters, and Lagunas San Jose and del Condado, in places to about 11 meters. Dredging in the San Juan lagoons has been harmful, beneficial, and in a few instances has had little or no noticeable effect on the water quality. Usually, dredging in the connecting canals has been beneficial if the water entering the lagoons through the canals was of better quality than the water in the lagoon. Dredging in the mouths of lagoons has been beneficial; whereas, filling or blocking the mouths has been harmful. (Woodard-USGS)

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