2004

1985

1973

History

Designed from the outset to evolve and keep pace with demand, the Annet-sur-Marne plant has undergone several transformations. In 1977, its capacity doubled with the addition of a second tranche. Capacity increased to 70,000 m3/day in 1980, and then rose to 90,000 m3/day in 1987.

In parallel with these improvements in capacity, the automated control system and treatment trains were upgraded to include new processes such as two-layer filtration or use of powdered activated carbon.