Sodium in Water
You can ask the person who advised you what they mean about it being High (that is a very generic and relative term) and get the actual measurement. But I doubt it's at a level to really do any harm unless you've been put on a strict sodium Free diet (I know non WLS patients who have had to do this, to a point where they have to watch which bottled water they drank as some has sodium in it). I wouldn't worry about it.
Cathy