Water quality and chemical evolution of ground water within the north coast limestone aquifers of Puerto Rico
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Abstract
Waters within the north coastal limestoneaquifers are suitable for public supply, industrial and agricultural uses. For the artesian aquifer and the updip parts of the watertable aquifer, calcium and bicarbonate are the dominant ionic species with total dissolved solids and chloride concentrations below 500 and 250 mg/L, respectively. In coastal areas of thewater table aquifer, where a freshwater-saltwater mixing zone occurs, the calcium bicarbonate facie grade to a sodium-chloride facie. Within this zone, concentrations of total dissolved solids and chloride are greater than 250 and 500 mg/L respectively, affecting the suitability of the water for some uses. Geochemical models were constructed to determine the physical and chemicalreasons for the prevailing water quality patterns of the north coastlimestone aquifers. Models indicate that calcite and carbon dioxide dissolution, precipitation or degassing are the primary processes. The mixing of recharge water or saltwater with aquifer waters is an important feature within the water table aquifer. The models provide further evidence that support the circulation of groundwater within the north coast limestone.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Water quality and chemical evolution of ground water within the north coast limestone aquifers of Puerto Rico |
| Year Published | 1985 |
| Language | English |
| Publisher | American Water Resources Association |
| Publisher location | Bethesda, MD |
| Contributing office(s) | Caribbean Water Science Center |
| Description | 7 p. |
| Larger Work Type | Conference Paper |
| Larger Work Subtype | Conference Paper |
| Larger Work Title | American Water Resources Association, Technical Publication Series TPS-85-1 |
| First page | 57 |
| Last page | 63 |
| Conference Title | International Symposium on Tropical Hydrology and 2nd Caribbean Islands Water Resources Congress |
| Conference Location | San Juan, Puerto Rico |
| Conference Date | May 5-8, 1985 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |