Gier Valley. Treatment plant sludge and rainwater: two studies in progress

The fate of the sewage treatment plant sludge, the control of rainwater upstream from the plant and the works of the Féloin underground gallery in Rive-de-Gier, three major projects for which the amount is not yet known but which are to anticipate.

By From our correspondent Françoise SUTOUR – Yesterday at 7:02 pm – Reading time: