Looking at it for even a few minutes you begin to think why wouldnt the govt just fix the pipes especialy considering all the for a fact negative effects including LOWERED IQ as a sympton of lead poisoning why would the politicians push that the water is safe to drink when tests show its not and what backs this up is that it literaly fits the M.O. of the us govt i present project 4.1 https://en.wikipedia.org/wiki/Project_4.1 Project 4.1 was the designation for a medical study and experimentation conducted by the United States of those residents of the Marshall Islands exposed to radioactive fallout from the March 1, 1954 and of course the famouse tuskegee syphilis experiments.

that or it was a ploy to lower the iq of the population as a means of low tech mind control to maintain political power and disparity between rich and poor.