4 ppm MCL, and the MCLG was reached. The same with other contaminants.
Pills consumed by us for medical needs end up in our waters.
When I ask for more recent contaminants, Mr. O’ Brien mention one known as“ Endocrine Disruptors”. This contaminant has been found in surface water systems( such as lakes and rivers). This contaminant originates from medicine that is made by us for medical purposes. They are consumed by us, put into the sewers, flow down into a river or lake, and in to a water treatment plant. There, people try to treat as a normal contaminant. But an aspect of endocrine disruptors is that they are very, very hard to get rid of. Water may even have to be treated twice to make in safe for people to drink. Another is called PFOA. Surprisingly, this is found in groundwater rather than surface water. It originates from the product Teflon. When it is thrown out, sits in the earth so the chemical seep in to the ground water. There it is pulled out by wells. Like Endocrine Disruptors, it is also hard to get rid of. The effects of these contaminants can cause neurological disorders, cancer, and, if too much is consumed, even death. In the wild, mutations are caused by these chemicals. Fish are born with both male and female sex organs. Frog are born with 3 or 4 hind legs.
deadly chemicals made by us.
This frog was mutated by the effects of new