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Wastewater treatment facility and sewage system in Liberia, Costa Rica

Project details

  • Beneficiary country(s): Costa Rica
  • Sector: Water and sanitation
  • Year: 2021
  • Beneficiary Executing Agency:

    Costa Rican Institute of Aqueducts and Sewers (AYA)

Project information


Liberia is the largest city in the Guanacaste Province located in the northwestern part of the country along the Pacific coast. The province is a destination for tourists because of its warm climate, white-sand Pacific coast beaches, natural reserves and national parks, which include several protected forests, water, mountain, and coastal ecosystems that are teaming with life.

Unfortunately, while tourism economy in Guanacaste Province has great potential, inadequate investment in sanitation facilities and infrastructure has resulted in wastewater being discharged into oceans, rivers and creeks without any treatment, causing harm to the region's water and ecosystems, posing health and safety risks for citizens and tourists, negatively impacting quality of life, tourism revenue and economic growth.

Main Objetive:

Support the Government of Costa Rica (GOCR) develop feasibility studies to modernize and expand the existing wastewater treatment facility and sewage systems in Liberia, as well as, increase the institutional capacity of the Costa Rican Institute of Aqueducts and Sewers (AyA).

Expected Outcome:

The technical, financial, regulatory, and environmental feasibility of the expansion and modernization of the sanitary sewer system and wastewater treatment facility in Liberia will be assessed and analyzed. Moreover, the studies conducted will be used as critical inputs for an operation with the Costa Rican Institute of Aqueducts and Sewers (AYA) and the Government of Costa Rica for the purpose of advancing the city of Liberia’s sustainable economic development.