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Mexico's Nayarit state water authority CEA has received five bids in a tender to build and operate a new wastewater treatment plant in coastal city Bahía de Banderas, CEA engineer Eduardo Curiel told BNamericas.
Aqualia Infraestructura de México, a subsidiary of Spain's Aqualia, and local firms Ecosistema del Agua, Fuerza de Apoyo Constructiva de Occidente, Fypasa Construcciones and Tecnologia Intercontinental presented technical and economic offers.
The project had an official budget of some 500mn pesos (US$41.4mn); however, offers from all five firms were in the neighborhood of 270mn pesos, Curiel added.
CEA is scheduled to award the tender on March 7 and sign a 20-year contract about a week later.
The winning firm will carry out executive projects, scheduled to take about six months, before beginning construction, which is estimated at about 18 months.
The plant will initially treat 600l/s, but will have total capacity to treat 900l/s. Work also includes construction of 28.4km of sewerage pipelines, BNamericas reported previously.
CEA obtained a 98mn-peso grant from national infrastructure fund Fonadin to partially finance the project. The concessionaire will be responsible for the remaining investment.