Chicago has the most lead pipes in the nation

Sounds like a crisis, but it's the third largest city and much older than LA. Isn't a per-capita, above a certain city size, the more relevant number?

> A plumber estimated it would cost about $26,000 to replace the private side of the home’s service line. Swapping out his internal lead plumbing would cost thousands more. At this point, having just purchased the home, the couple doesn’t have the money to replace their service line. For now, they’ll keep testing and filtering their water.

Reverse osmosis systems for the main drinking water sources are around $200 each now, 100X less than the cost of fixing if it's just the kitchen sink that they drink out of. They do require maintenance that many won't do, but it seems like there could be an app for that or some kind of automatic timed shutoff with a reminder to buy at least one extra filter at a time.

Annual filter costs are 10X-15X less than interest earnings on $26,000. I think you can usually install easily with no plumber with a couple shark bite press fittings and a pipe cutter.

It sounds like that may be what they are already doing, but isn't it basically a good enough solution?

End users seeing water content in real time would absolutely motivate fixes.

Via ChatGPT, some groups of Chicago children are average 6-8 µg/dL blood lead levels, guaranteeing they’ll face challenges related cognitive disability. 100+ years of this—and all they need is good water filters.

This should be a class action to get fixed. No way the government can fix this alone in a reasonable time frame without focusing on end-users first.

Also, the average lead level of urban or suburban toddlers in the 1970s was 10-15 µg/dL, due mostly to vapors from leaded gasoline. Gen X had eye-popping lead exposures as kids.

So 6-8 µg/dL doesn't guarantee cognitive disability, but it is still bad.

[Edit: also want to add that quality monitoring doesn't necessarily fully solve the water situation either. For example, it is known that a chunk of leaded detritus or solder can drop into rice or pasta water from stream or aerator and raise serum precipitously, but won't be seen in a test as it is intermittent. The problem of lead is ubiquitous and not entirely tractable, but a lot of progress is possible over time.]