San José, Costa Rica

In San José, AyA (the national water and wastewater government agency) owns and operates the Tres Rios Water Purification Plant and the Los Tajos Wastewater Treatment Plant. This 68 MGD, $45 million plant is one of the only wastewater treatment plants in the country. It was constructed in 2015 and includes first-class technology like CHP (combined heat and power), extensive odor control, centrifuge-based dewatering, and full SCADA control. With secondary treatment, it would rival top-notch plants in the United States.

In 2018, GWS organized its first wastewater workshop, tailored to educating AyA professionals, which took place at Tres Rios.

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