one of my customers was complaining about his tap water yesterday so i tested it...264tds!and its only a 15 min drive from me!he noticed his shower screen was harder to clean because of the chalky deposits.....their supplying his water from bore holes now....... 
This near me Daz? Mines still 380+, big difference from the 45 that I used to get but not a big deal now I’ve got a RO.