what are the misconceptions about groundwater?

Answer 1

That it’s clean, pure and not polluted.
Then there is the whole idea that natural springs are somehow just healthier than normal water sources.

As Pepsi has proved you can take normal tap water, bottle, filter and package it and sell it for more than Americans pay for gasoline. In the end it is still just water, and water is water. What makes the difference is only in what you add to it.

Tap water has fluoride to help fight cavities and "mineral water" has minerals; some of which may or may not be good for you. You can get most of those same minerals in a multivitamin. However, it has been proved that the best way to get vitamins and minerals is to absorb it from the food we eat, not in pills and not in our water.

If you live in Washington State, down stream of the Hanover Nuclear power plant then you may not realize your water has been radioactively contaminated since the 1970s.

There are other sites that are contaminated as well, and most natural springs need filtering to be potable (drinkable by humans).

Finally, there is some crazy idea that the source of water matters; filtered tap water is just as good as the water you can buy in the store and most ground water isn't good enough to be drunk until it is filtered.

Lakes and rivers can be considered as ground water since they are the sources for many aquifers. - Yes, Lake Erie did catch fire, but it has been cleaned up.
- Mark Twain said that if you left a glass of Mississippi water sit in the sun the next day it would be half filled with mud (they don't call that river the Muddy for nothing).
- Boone Pickings, the oil tycoon, is holding on to his water rights and says that drinkable water will be the new oil of the 21st century.

Answer 2

misconception that mineral water containing calcium is good for you. That's BS because its a marketing ploy to sell poor quality well water that is high in CaCO3 (calcium carbonate) other wise known as hard water.
Also "spring water" can also mean well or bore water. There is no difference.
The analytical cation anion balance on the side of the bottle usually don't add up. Therefore the analysis is incorrect.
Groundwater can contain metals in solution that are naturally occurring in the aquifer. The most common being dangerous metal arsenic but can also contain selenium cadmium and iron

Answer 3

That it will last forever.