"Normal" is still too-much lead for people and animals.  But water is just one of the things that are slowly killing all of us.  Air, food, you name it--our bodies are constantly under attack.  The government not only allows it, it aids and abets the situation.  For example, have you ever noticed how-many products have propylene glycol in them?  That's a form of anti-freeze, and, while it is not deadly if consumed in small amounts, it builds up in the body and damages the liver over time.