Most new water pipes in cities are made from PVC, so it's not just what your house is made from you need to think about. I expect you could also find articles t

Most new water pipes in cities are made from PVC, so it's not just what your house is made from you need to think about. I expect you could also find articles talking about metal leaching into water being bad too. Short of distilling your own water I don't know what you can really do.