My wife accidentally ruined my childhood
You should see the so far unregulated lists of chemicals being tested for by the EPA now in raw source and in finished water out at the endpoints of distribution systems. I myself have collected for blasting agent, pharmaceutical, fuel additive, and some really strange hypothetical chloro and bromo organic compounds that went to a high end out of state enviromental lab. Being that almost all disinfection save for UV or direct electrolytic processes (unused on municipal scale) are reduction-oxidation reactions, they can make some really strange compounds in the dead ends of water systems with time, temperature, and disinfection residuals or even existing byproducts. The bad part is that the farther away places get from conventional chlorine disinfection, the worse the potential byproducts are.