Does California specify which water mains are old asbestos cement pipes? That famously caused ecological disasters in the Bay Area 20+ years ago, but they didn't (in newspaper articles i saw) show the extent of such.
I'm not aware of that. I doubt asbestos cement water mains are a significant health risk to the end user. I think any asbestos that could become airborne is a risk. To the workers who installed those pipes, certainly.
