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Ground-Water Quality in the Caguas-Juncos Valley, Puerto Rico, April to October 1990

Open-File Report 96-139

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Abstract

Ground water from 48 wells and 1 spring in the Caguas-Juncos Valley was sampled and analyzed for major ions, nutrients, trace metals, and volatile synthetic organic chemicals from April to October 1990. This report presents the results of physical and chemical analyses made on these water samples. Dissolved-solids concentrations exceeded 500 milligrams per liter in 28 percent of the samples. Concentrations of trace metals were below the maximum contaminant levels set by Federal and Commonwealth agencies. Volatile synthetic organic chemicals were detected in water from five wells, four of which were located in urban and industrial areas. Concentrations of benzene, ethylbenzene, toluene, and xylene detected in samples from one observation well exceeded the maximum contaminant levels set be Federal and Commonwealth agencies.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Ground-Water Quality in the Caguas-Juncos Valley, Puerto Rico, April to October 1990
Series title:
Open-File Report
Series number:
96-139
Edition:
-
Year Published:
1996
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
U.S. Geological Survey
Description:
21 p. **PUBLICATION PAGES ARE IN INCORRECT ORDER**
Time Range Start:
1990-04-01
Time Range End:
1990-10-31