SUEZ in Senegal

SUEZ wishes to accompany Senegal in its emergence through the water business activities, whose needs are growing due to the country's demographic and urban growth. Since January 2020, SEN'EAU, of which the Group is the reference technical partner, has been the company managing the operation and distribution of drinking water in urban and peri-urban areas of the country.
Our achievements

A historical presence in the country

SUEZ began its support for Senegal's emergence by building infrastructure. In 1999, the Group renovated the Ngnith water treatment plant, which now has a theoretical capacity of 45,000 m3/day.


Since then, two further drinking water treatment plants, KMS1 and KMS2, have been built in Keur Momar Sarr, in the north-west of the country, and construction of KMS 3 is in progress. Keur Momar Sarr 1 and 2 produce over 130,000 m3/day. The plants were assembled in two phases between 2004 and 2011, providing 65,000 m3/day each. Keur Momar Sarr 3 will produce over 200,000 m3/day. The first drinking water production will take place at the end of 2020.

The plants will meet the population's growing water needs and improve their health and quality of life. They will help ensure continuity of service in the country and contribute to serving its new centres of economic activity. The KMS plant is considered to be the country's biggest hydraulic project.

Our expertise

Producing and distributing drinking water 24/7 for 7 million people

On 1 January 2020, the new company SEN'EAU took over the operation and distribution of drinking water in urban and peri-urban areas in Senegal, with SUEZ as its leading technical partner.


Senegal has been innovating in the drinking water and sanitation sector in urban areas since 1995, with the First Generation Reform. The goals achieved in terms of access to drinking water and the levels of urban performance have been remarkable.

Today, water needs are growing fast: with an overall population of 15.7 million, exponential growth will bring the population level to 25 million by 2025 and 39 million by 2050.


The accelerating demographic and economic growth of Senegal, affected also by the effects of climate change, has led to the Second Generation Reform. This reform, the origin of the new leasing contract, aims to prepare for the future by modernising the water distribution network using new techniques and management methods. Its actions will contribute to achieving the goals of the Emerging Senegal Plan launched by the country's president.


SEN'EAU is a company under Senegalese law with majority Senegalese ownership (55%). Following the company's establishment, its share structure is: SUEZ 45%, Senegalese state (via FONSIS) 24%, Senegalese partners 20%, employees in the sector 11%.

  • Client: Société Nationale des Eaux du Sénégal (SONES), a limited publicly-owned company and the state contractor managing urban hydraulic assets / Ministry of Water and Sanitation
  • Contract duration: 15 years

The SEN'EAU vision: "Excellence for Senegal, a benchmark for Africa"

To achieve the goals of this vision, the SEN'EAU action plan focuses on six strategic priorities:

  • 1. Ensuring access to water for all
  • 2. Guaranteeing excellence of service
  • 3. Establishing sustainable performance
  • 4. Reducing the energy and environmental footprint
  • 5. Creating a centre of excellence and innovation
  • 6. Supporting all staff in their careers


Guaranteeing access and the continuity of the drinking water service 24/7 to 7 million inhabitants, while respecting Senegal's sustainable development, involves modernising and optimising hydraulic installations and introducing a 360° supervision platform, from production plants to customers' meters. It includes a plant to combat leaks and an annual renewal programme for the network, connections and meters.


With regard to the quality of the water distributed, the company guarantees that it will maintain and improve compliance levels for bacteria, chemicals and suspended solids.


Excellence of service also means the quality of customer relationships. For example, digital points of contact will be added to the traditional services to help the company listen and respond better to its customers. A new bill will be designed with help from consumer associations.


A centre of excellence and innovation in the water industry will be initiated with the Campus Franco-Sénégalais, universities and engineering schools to create a research centre that will reach out to the whole sub-region.


SEN'EAU supports all staff in their careers with ambitious career development plans. A training and knowledge transfer scheme will be put in place. Priority will be given to young people, who constitute the company's most important talent pool, and women will occupy their rightful place in the water industry.


The health and safety of staff are absolute priorities for the SUEZ Group. All staff have personal protective equipment appropriate to the company's various activities. Relations with staff representatives are based on mutual listening and respect for the new project, with action plans developed jointly.


SEN'EAU is also responsible for operating and maintaining the Keur Momar Sarr and Ngnith drinking water plants, the secondary plants and drilling operations that supply the perimeter with drinking water and the drinking water distribution systems, together with their modernisation.

SUEZ in Senegal SEN’EAU

Credit: SUEZ group

COVID-19: extra efforts in response to the pandemic

During the Covid-19 crisis, a Business Continuity Plan (BCP) has been implemented to adapt the teams' work to the current situation and respond to the needs of Senegal's population.


Employees have been given the appropriate protective equipment they need (masks, sanitiser gel) and they are working in groups by rotation to limit contact. In-house doctors have been supporting managers in raising awareness of preventive and protective measures and checking staff health.

To make these tasks easier and avoid unnecessary journeys to customer offices, SEN'EAU has come together with Senelec, Orange Money, Free Money and Expresso to enable water bills to be paid electronically, with payment fees waived for a set period.

The Dakar 2020 water supply consolidation programme

The high level of population growth and changing patterns of consumption exert permanent pressure on drinking water distribution, particularly in the Dakar and Thiès regions.
The peak in consumption due to the hot weather has led to reductions in water availability times in several Dakar neighbourhoods.


To limit the effects of this peak, the Société Nationale des Eaux du Sénégal and SEN'EAU are deploying a special programme of measures to mobilise additional production amounting to 47,000 m3/day and improve distribution. The programme includes renewing and renovating drilling operations, installing small pressure boosters in areas of higher ground and reinforcing the automatic flow and pressure management system in the networks.


Alongside this work, the overall management of distribution is being supported with the deployment of water tankers. To increase the size of the fleet available to the state, SEN'EAU has acquired 15 new tankers. On average, 65 tankers are currently operating 180 journeys per day, with a real-time monitoring system for the locations of the tankers to optimise distribution and enable telephone advisers to offer guidance to customers.