The operation contemplates the construction of the drainage network of waste water in the vicinity of the village of Oleiros, with connection to the existing water treatment plant, downstream of the village of Oleiros. It is part of the typology (b) v) of the Notice of Contest POSEUR-12-2016-38. The additional population served by the improvements to the Operation, foreseen in the project is 300 (Equiv. Popul.) and considers that 100 % of the accommodations served comply with the discharge parameters.