Well, not yet, anyway.
In the book Histoire de la Ville et du Canton de Preuilly (Indre-et-Loire) by Charles Audigé and Constant Moisand (de Beauvais) published in 1846, it mentions that there are 11 wells in Preuilly sur Claise, and goes on to list them. Some are really easy to find, but there are one or two cryptic references.
The easy wells to find are ones where the pump still exists, where old photos of the wells exist, or where there are concrete or metal slabs over the wells. The pump over the well at Notre Dame is still in situ, so we'll start with an easy one...
If you're interested, you can read the whole book, in French, here.