Colombia's Medellín-based multi-utility EPM has launched an international tender for construction of its Bello wastewater treatment plant.
The awardee will be responsible for designing, building and initially operating the plant, which will treat 5.5m3/s of wastewater from cities Bello and Medellín.
Interested firms have until August 20 to register to bid, according to an EPM release.
Companies from Brazil, Mexico, the US, Spain and France have already attended a site visit, EPM's metropolitan water manager, Alberto Gutiérrez, told BNamericas in a previous interview.
Construction is expected to begin this year and should wrap up in 2014.
The project is being financed by a US$450mn IDB loan, which will also cover construction of the Interceptor Norte wastewater collection system.
The Bello wastewater treatment plant is part of phase II of EPM's US$550mn Medellín river sanitation program, which is expected to be completed by end-2014.