Collective sanitation service works in the Bouchet valley.

O des Aravis commissioned the Montmasson firm to supervise this work in the town of Grand-Bornand (74). These fall within the framework of the actions planned by the Master Plan for the small water cycle (SDCE - adopted at the end of 2019), as well as, more broadly, within the framework of the objectives of the Sage de l'Arve.

The works will consist of the creation of a main wastewater treatment collector, with its antennas, and also the creation of private connections with their boxes, as well as the laying of a DWS pipes in common trenches on part of the route. .

The total length of the route represents a linear 10 km network.

This work, divided into three geographical lots contiguous with respect to the main collector, includes:

- lot 1: from node 1 to node 85,

- lot 2: from node 85 to node 135,

- lot 3: from node 135 to node 236.

Section 1: nodes 1 to 85.

Section 2: node 85 to 135.

Section 3: node 135 to 236.