It's fine, quit worrying. Well water? When I hear that I think iron. If the well water is high in iron, you must rethink it's use. If it's not and the water ppm's out below 150. Then I would use it.
If your well water is run through a water softener, like mine, don't use it. Don't water until your soil drys and those leaves should straighten out. Looks to be just out of the shell so a little curvature is normal.