Germany outlawed installing lead pipes in 1973, this year operating them got outlawed, though already ten years ago the permissible lead concentrations were so low as to be basically impossible achieve if you had even short runs of lead pipes. All the main lines got replaced IIRC in the 80s, latest, can’t find numbers right now, though apparently they rarely used lead there in the first place.

Also, btw, if you’re already digging up water pipes it’s quite easy to install some cable ducts while you’re at it, put all those power and telco lines underground and stop looking like a 3rd world country. That kind of last-mile infrastructure should be managed by municipal-level monopoly, if an ISP wants to sell you something they can hook up to the municipality’s IXP and rent the rest of the way to your house at fixed, fair, rates. It’s a natural monopoly: It makes as much economical sense to run more than two power or telco connections to a house as it makes to run more than one street to your house: Costs a lot of money to run that second street and as soon as you did your competitor is going to lower their prices, which they can do because their investment already amortised, and leave you stranded with your investment because why would the residents of the house switch to your offering if your competitor is cheaper.