As part of the reorganization of its storage facilities, Trivalis has decided to modify the authorized storage capacities of the three ISDND of Tallud-Sainte-Gemme, Sainte-Flaive-Des-Loups, Saint-Christophe-Du-Ligneron, and to increase the annual tonnages of landfills. This contract therefore covers the achievement of the following three missions:

- Mission 1: The technical validation of the dome profile and extension of the lockers and realization of preliminary technical studies

- Mission 2: The Elaboration of a Single Environmental Authorization File (DAEU) for each of the three ISDND mentioned above.

- Mission 3: Accompaniment of Trivalis throughout the development and examination of the file

Trivalis solicits the needs of design offices to:

- Mission 1: The technical validation of the dome profile and extension of the lockers and realization of preliminary technical studies

- Mission 2: The Elaboration of the Single Environmental Authorization File (DAEU)

- Mission 3: Accompaniment of Trivalis throughout the development and examination of the file

Trivalis solicits the needs of design offices to:

- Mission 1: The technical validation of the dome profile and extension of the lockers and realization of preliminary technical studies

- Mission 2: The Elaboration of the Single Environmental Authorization File (DAEU)

- Mission 3: Accompaniment of Trivalis throughout the development and examination of the file

Trivalis solicits the needs of design offices to:

- Mission 1: The technical validation of the dome profile and extension of the lockers and realization of preliminary technical studies

- Mission 2: The Elaboration of the Single Environmental Authorization File (DAEU)

- Mission 3: Accompaniment of Trivalis throughout the development and examination of the file