Sure in theory or a lab. Now throw in random chance, varying water pressure, thousands and thousands of holes of varying types sizes and locations.
Of course there is the chlorine to kill it and the dilution to keep people from getting sick.
Yeah. Not unreasonable points. Still, if the water leaking out is under pressure, nothing will leak in. And,,,, I don’t like Florida water! The company I operate has for deep Ohio wells. Great water!