[lakercapt]

When our well was drilled a truck with a derrick at the back drilled down and casing was fitted as it got lower. Reached the aquifer at 146 feet and the casing was sealed with bentonite.
A pump was lowered with the piping to the house away below the frost level to a pressurised holding tank.
The quality of the water is such that a well known company wished to build a bottling plant and tap into this aquifer. They were turned down much to the pleasure of the local residents who are all receiving water from this aquifer. I was told by some knowledgable specalist the water we so freely use is over 100 years old but how they find this out I do not know.