Many articles try to imply that the lead came from the new water supplier; in fact, it leached from lead pipes the existing system used as its water mains. I h

Many articles try to imply that the lead came from the new water supplier; in fact, it leached from lead pipes the existing system used as its water mains. I haven't read any articles which say that. The consistent narrative has been that that the (drastically) increased lead levels by late 2014 resulted from an influx of corrosive agents into the municipal water system (perhaps exacerbated by a decision not to add anti-corrosive agents to counteract this effect). I haven't read any source which claims the increased lead levels "came from the new water supplier." They all seem quite clear as to the basic cause-and-effect relationship, in fact.