The Communauté d’Agglomération du Pays Ajaccien (CAPA Ajaccio urban district council) has been engaged in a voluntary effort to restore the quality of water. To sustain this initiative and create the required conditions for a regional development project, the state and the CAPA have signed the “Horizon 2013 – Contribution of Ajaccio to cleaning up the Mediterranean” agreement to upgrade the agglomeration’s sanitation system so that it meets the standards of the European Union’s urban wastewater treatment directive.
VINCI Construction Grands Projets was mandated by Sri Lanka’s national agency for drinking water and sanitation to rehabilitate and expand the drinking-water treatment plant in Kantale. The project calls for the construction of a new 1,500-cubic-metre raw water storage tank, new water-treatment capacity equal to 18,000 cubic metres a day, and a new 1,500-cubic-metre tank to store treated water. The project also covers the rehabilitation of all structures and buildings in the existing plant, including replacing process, electromagnetic, and electrical equipment. Also included in this project are the development of two water intakes and raw-water pumping stations and supply and installation of the equipment for the treated-water pumping station. Finally, the project also covers automation of the treatment plant and pumping stations and supervision of the drinking-water distribution system as a whole for the region of Trincomalee.
As compared with the rest of Cambodia, Phnom Penh, the capital, is well-supplied in drinking water. However, this city with a population of 1.6 million is adversely impacted by uneven access to drinking water from one community to the next – a problem aggravated by its fast-paced population growth and industrial development. In response to this situation, the Phnom Penh Water Supply Authority (PPWSA) decided, as part of its 2005-2020 Master Plan, to build a new treatment plant in Niroth to produce drinking water. The project includes a water-intake system in the Mekong River, a raw-water pumping station, a filtration facility, and a treatment plant that feeds potable water into the city’s distribution system. Given the project’s considerable scope, a decision was made to divide it into two phases, with each phase encompassing a capacity of 130,000 cubic metres a day. A call for tenders was issued for each phase, and VINCI Construction Grands Projets won the call for tenders for the second phase in 2014, one year after the entry into service of the initial phase.
We built a wastewater treatment plant in the commune of Saint Joseph on Reunion Island for Communauté d’Agglomération du Sud (CASUD).
In 2011, ONEAD (Djibouti’s national water and sewerage authority) awarded a contract to VINCI Construction Grands Projets to rehabilitate and expand the drinking-water supply network in Djibouti. The project consisted in rehabilitating 36 wells, carrying out network segmentation by district, repairing leaks in defective equipment, installing 100 kilometres of HDPE pipes, and providing 2,000 connections. Following this initial phase and the client’s satisfaction, we were hired once again in 2015:
For the second phase which consisted of rehabilitating the drinking-water network and expanding it by 36 kilometres, building a semi-underground storage tank, and providing no fewer than 3,000 connections. This phase was designed to improve access to water in working-class neighbourhoods and newly developed urban areas.
For another contract for a project that was complementary to the second phase of the initial project; it consisted in expanding the main water-supply network by 25 kilometres, upgrading three water towers, implementing a telemetry system for the drinking-water segment of the network, and – on the sanitation side – rehabilitating 3 STEP and the open-air drainage channel.
Yemen’s National Water and Sanitation Authority mandated us to build a wastewater treatment plant with a capacity of 50,000 m³/day in the capital city of Sana’a. The project, located north of the capital city next to El Rahaba International Airport, included construction of an underground intake wastewater pipeline made of fibreglass that is 6 kilometres long and ranges in diameter from 1,200 to 1,500 millimetres, civil engineering for the filtration plant, construction of a 200,000-m³ storage pond for wastewater designed for irrigation purposes, and implementation of about 3 kilometres of cast-iron or fibreglass pipes ranging in diameter from 80 to 1,500 millimetres. The treatment plant includes a workshop, a back-up power station (4 MW), and an administrative building.
