[Cannonball]

I see by veetermons sites, that many of these chemicals have not been tested enough to establish which levels in the water are safe. So???

My genetic engineer son was working on this sort of thing in a Carolina research outfit, with the feds, but the lab was privatized in the early 2000s, and all research went looking for cures for AIDS, cancer and such. It seems, unlike an old rumor, "An ounce of prevention is worth a pound of cure", truth is, prevention is worthless, but cures are worth a bunch. So it is, in todays business world.