Civil works: - The implementation of ductile iron discharge pipes from DN 150 to 250mm serving the new drilling sites, - The implementation of DN80mm ductile iron drain pipe, - The installation of DN125mm ductile ducts and multitubulars connecting new drilling sites and treatment plants, - The preparation of drilling platforms and the exterior layout of new drilling sites, - The rehabilitation of all asphalt, including the 0/45 crushed pavement structure, curbs, fences and gates of existing drilling sites, - The development of quarry crushed access roads to existing drilling sites, - The realization of reinforced concrete suction cup, - Rehabilitation of the road surface. Concrete remediation work: - See "additional technical remarks" section of the sanitation slip.

Civil works: - The implementation of ductile iron discharge pipes from DN 150 to 250mm serving the new drilling sites, - The implementation of DN80mm ductile iron drain pipe, - The installation of DN125mm ductile ducts and multitubulars connecting new drilling sites and treatment plants, - The preparation of drilling platforms and the exterior layout of new drilling sites, - The rehabilitation of all asphalt, including the 0/45 crushed pavement structure, curbs, fences and gates of existing drilling sites, - The development of quarry crushed access roads to existing drilling sites, - The realization of reinforced concrete suction cup, - Rehabilitation of the road surface. Concrete remediation work: - See "additional technical remarks" section of the sanitation slip.