In a statement sent to the Lusa agency, the company explains that the "Lot I of the Contract" of the Carreiras and Alagoa wastewater treatment plants, in the municipality of Portalegre, Figueira and Barros e Valongo, in the municipality of Avis, and also of Esperança, in the municipality of Arronches, began on 14 October.

"The work represents an investment of about 1.6 million Euros, with a period of execution of 545 days", reads the document.

According to Águas do Vale do Tejo, this work aims to provide the sub-systems of these five wastewater treatment plants with adequate treatment infrastructures, with a view to "complying with the quality levels required" by the national and community regulations in force.

Águas do Vale do Tejo also informs that due to the Covid-19 pandemic, "the work will be carried out in accordance with prevention, protection and safety measures", based on the measures provided for in the company's contingency plan and the guidelines in force at national level.