No its not...it is up to this guy to prove that such tiny concentrations of chemicals are harmful.
He can't, by the way. All they wish to do is cripple assorted industries and raise the cost of our water to astronomical heights (along with energy and food).
He said nobody "wants" to look at the effects of contamination from sewage sludge from human populations where there's a lot of females on synthetic sex hormones. That would be OC's and HRT.
He's encountered political/ideological pressure to minimize such findings. Nobody "wants" to find that oral contraceptives are queering the fish. Or that human males may be skewed prenatally or in early childhood by exposure to water containing exoestrogens.
They also report that all sources of drinking water contains birth control chemicals. Probably the source of decreased birth rates and increased numbers of homosexuals from the estrogen changing our children’s sexual orientation.