María José Calvo: Water supply in Costa Rica - Potassium in wells
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Problem description: High levels of potassium in ground water from system 1-2 of Heredia Aquifers. Two wells (Joya 3 and Claretiano 2) and 1 sealed well (Carbonal – High temperature 30°C). Cause: The water wells have been affected in 1km radius. Unknown specific source. Suspected contamination from a volcanic vein. Vision: Assure potable water supply to residents of Heredia (Systems 1-2) during rainy and dry season.