Safe drinking water for everyone in America is an important goal, and Joe Biden’s American Jobs Plan makes a $111 billion investment toward that. While the majority of the funding goes to modernizing water treatment and delivery systems and remediating potentially harmful chemicals like PFAS, what’s gotten the most attention is a $45 billion initiative to “replace 100 percent of the nation’s lead pipes and service lines.”
If we could manage to do this, it would make a huge difference. Lead exposure has been credibly linked to stunted child development, kidney disease, auditory problems, brain damage, behavioral challenges, and more provocatively,
crime. We eliminated leaded gasoline and paint in the 1970s and yet it still lingers as a persistent problem. And part of that comes through water tainted as it flows through lead pipes.
But if you want to replace all the lead water pipes in America, the first thing you have to do is find all the lead water pipes in America.
And then you have to remove the whole pipe, including the part on private property.
prospect.org
This sounds like it has the makings of a chaotic nightmare. I don't have a problem with it as long as homeowners are not having to come up with money to replace them.
Simple. Replace every pipe that was installed before a certain date. When lead was no longer used in the production of pipes or in the solder connections.
Impractical.
Pipes are put in before streets, buildings, etc. are constructed.
Nor are there still records.
You would have to totally retrench over 10' down every single street and private property.
Nor any need in most cases.
Lead pipe does not normally cause any lead to get into the water.
It is only bad when water is hot, acidic, or stagnant.
in this case they say the new water source they started using had a high chlorine content and cause the breakdown of the liner and allowed lead into the water,,
Chlorine is highly toxic, much more so than lead, and should never really be used.
Floride is bad enough, but that is in very tiny amounts.
But it was NOT the piping that was at all any part of the problem.
When they got water from Detroit, it also had SOME chlorine.
It was the increase of choline and other things that caused the problem.
And clearly when you see dark water, that is sediment from old pipes or systems that had not been used on a long time.
{...
Flint isn’t the only city susceptible to these problems. The pipes in its old distribution system had seen the same water for decades. Switching water supplies in 2014 changed the chemistry of the water flowing through those pipes. When a switch like this happens, the water system is going to move toward a new equilibrium, says
Daniel Giammar, an environmental engineer at Washington University in St. Louis. “It could be catastrophic as it was in Flint, or it could be a small change.”
Before 2014, Flint was getting its water from the Detroit Water & Sewerage Department, which would draw water from Lake Huron and then treat it before sending it to Flint. Looking to lower the city’s water costs, Flint officials decided in 2013 to instead take water from the Karegnondi Water Authority, which was building its own pipeline from the lake. Shortly after that, Detroit told Flint it would terminate their original long-term water agreement within a year and offered to negotiate a new, short-term agreement. Flint declined the offer. As an interim solution, while waiting for the new pipeline to be finished, Flint began taking water from the Flint River and treating it at the city’s own plant.
...}
A new equilibrium would be reached in a short time, so then water should have returned to being safe in Flint, without any lead pipe removal.