Compared to what I experienced in Las Vegas, those are minor variations. Sometimes I'd get lake water, sometimes well water. The well water had enough calcium you could use it to patch dry wall. I had an RO system for drinking water and filtered all of the water for the house.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk