We have no way of knowing exactly what potential contaminants may be in each person’s water supply. What we do know is that our Black Berkey® Elements filter out numerous pharmaceutical drugs and endocrine-disruptors (EDCs); such as BPA, Naproxin, Octylphenol, Progesterone, THM’s and many more. Please click here to view some of our most recent test results, specifically pertaining to EDCs and pharmaceutical drug contaminants that could be found in your water.