Depends on what is found in the water, chemical wise. More than likely it isn't a chemical that is approved for such use and he can go the route of dumping an unapproved chemical into a city's water supply and endangering the citizens of Locke City. If anything in there is something known to increase risks for things like cancer there is that as well. Mostly it depends on the findings the chemists have as to what angle he can go with it.