Ibarra WWTP, Ecuador


The city of San Miguel de Ibarra, the largest city in the canton and capital of the province of Imbabura, is located in the north of Ecuador, 115 km northeast of Quito and 125 km south of Tulcán.

It forms part of the Tulcán-Riobamba corridor. According to the census carried out by the INEC in 2010, the city has a population of 181,175 From the hydrological perspective, the city drains surface runoff into the Chorvalí and Tahuando river basins, mainly the latter basin, through a system of gullies that runs from south to north through sectors of the city.

The Empresa Municipal de Agua Potable y Alcantarillado de Ibarra (Ibarra Municipal Drinking Water and Sewage Company- EMAPA-I) is responsible for water and sewage services throughout the canton. This utility was created by means of a Municipal Ordinance for the purpose of fulfilling all the duties and obligations associated with a company of this nature. On September 28 2012, following a tender procedure, EMAPA-I entered into a “Commercial Contract for the Detailed Engineering, Design, Supply of Equipment and Materials, Construction Work, Equipment Assembly, Testing and Commissioning of the Wastewater Treatment Plant of the Canton of Ibarra” with the Acciona Agua – Eduinter Consortium. The project was funded by means of a loan from the Government of Spain’s Corporate Internationalisation Fund (FIEM). An execution period of twenty eight months was stipulated under the terms of the contract.

On April 15 2015, the Certificate of Commencement for the project was signed. The wastewater treatment plant was built on land situated on the left bank of the Tahuando River with a total surface area of around 4.5 hectares. The plant is located between the Avenida Carchi and the river.

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Published in: FuturENVIRO #43 September 2017