PVC pipe and its future

You might be surprised what might be in our rivers. I haven't studied the details pro or con, but there is concern about estrogen from birth control making it's way past water treatment plants and back into rivers.

That and some drugs which have been flushed down the toilet
 
I have 30+ year old PVC pipes. When I cut into them there is a layer of rust covering the inside. Even on the soft water pipes. I would assume this blocks water contact with the PVC?

The well infeed of black PB tubing is the same.
 
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