Drinking Water Supply and Wastewater Master Plan for Santo Antão and Feasibility Study on the Sanitation Project for Porto Novo, Cape-Verde

Study of water resources
Training of ANAS staff



Altereo was awarded this contract financed by the French Development Agency together with the Senegalese firm EDE.

Despite a limited surface area (779 m²), the island of Santo Antão, located to the North-West of the archipelago, is characterized by significant imbalance in the availability of resources between the north and the south of the island.

The South is subject to a very dry climate regime that has forced the concerned authorities to resort to seawater desalination to supply the main city of Porto-Novo (10,000 inhabitants).
On the other hand, abundant rainfall in the northern part of the island provides a sufficient resource through boreholes and springs.

The objective of the Master Plan is to assess the needs of the sector, to define the priority investments to be made and to prioritize them over a 20-year horizon in order to ensure a sustainable service to the island’s populations.

Project Description

As part of this study, ALTEREO is in charge of the following activities:

Study of water resources in order to prepare the water balance (needs/resources) and propose scenarios for resource mobilization to respond to the demand for water within the given horizon
Development of a data model on current and projected water resources and water and wastewater systems (using QGIS) and development of thematic maps.

Training of ANAS staff and the staff of water and sanitation services (SAAS) of the 3 municipalities of Santo Antão to use QGIS.