Please don't drink Vio, it comes from the same basin Lüneburg get's it's household water from, which is a not refillable one. Coca-Cola is also now drilling a third well to drain even more water from it. The basin is Lüneburgs groundwater, there is some water in upper layers, but there you got nitrates from the fields. :/
It's not just Vittel or water in other countrys, who have this problem.