I thought of it. What about the water treatment plants and the fact that water gets recycled after being treated. In northern Florida we have boil water notices all the time because sometimes bacterial, viral load (whatever it is) numbers are too high in the water to be safe to consume. Auggggghhhhh geez I’m scaring myself.
Most water treatment plants in the US use surface or ground water. Surface water from lakes or rivers, require filtration. Ground water might also require some treatment, depending upon water quality.
Wastewater treatment plants (sewage treatment) have rigorous criterion by which they may discharge their effluent into other bodies of water. Generally speaking, wastewater isn’t reused as potable water, but maybe reused as nonpotable water, such as irrigation, where it isn’t consumed. It may be disinfected, but may still contain some viral contamination.
I’d guess the filtration membranes won’t stop the bacteria and any chlorine/shock treatment chems they use wouldn’t be concentrated enough to kill it.
Do you boil ALL water, even for showers, pets and dish washing? If you splashed some ‘raw’ water on your skin on the way to the stove, wouldn’t you be infected? OMG, this is really getting scary!