Is deep well water harmful to human body?

Is deep well water harmful to human body?

Deep well water may be harmful to human body, and it must be tested to be qualified before drinking.

Due to the complex geological conditions of groundwater, if harmful minerals, such as fluorite, are associated with groundwater, a large number of fluoride ions will be produced in deep well water, and water with excessive fluoride ions will cause fluorosis.

But sometimes it can be a beneficial mineral.

So it is better to test deep well water.