A nonprofit environmental organization reported it found evidence of a potentially harmful chemical in drinking water systems used by 7.5 million Californians. The review by the Environmental Working Group detected PFAS, a “forever chemical” that does not break down, in 74 different communities’ water.

Even “very low doses” of PFAS in drinking have been linked to health problems such as cancer and birth defects, the organization said. All of the tested water exceeded the safe level recommended for PFAS (one part per trillion) and nearly half of the samples had samples over 70 parts per trillion.

I suspect they will be finding PFAS in drinking water for a long time, and it will be all over. As they note, it doesn't really go away, it gets washed into drinking water from washing clothes and pans, it comes out of landfill lechate, and sewage treatment plants have no ability to remove it.