A friend who works for the city water dept gave me the last lead water meter yoke in the town. We recently got an RO system due to nitrate concerns and that water is blended with the other well water. This has cause a shift in the water chemistry that is removing the calcium buildup in the pipes. Lead piping had not been a concern as the calcium coated the lead. Now there is no more lead plumbing. I gained 20 lbs of pure lead.