Why is this a problem? Flavor? This is certainly different than places like Mexico, where the tap water isn't potable.
> We don't need to talk about the things that you cannot taste or smell and what happened in Flint.
If we're talking about unknown unknowns, this is true of anywhere in the world.
Yes, if it already smells after chlorine, how can I know what else is in there. If it was from a clean source, it would not need chlorine in the first place.
> "If we're talking about unknown unknowns, this is true of anywhere in the world."
No, water supply in Germany is closely monitored at the source, at the water works and even close to the user in apartment buildings and rental properties. Also, our water supply is not privatized, like in the US. A disaster like Flint could not happen here.
I advise you look into the Flint water crisis, because your understanding doesn't sound accurate. The decision to change the source from one body of water to another was a municipal decision - made by the city's Emergency Manager (indicted on felony charges) - not one made by a private company.[0]
The EPA (another governmental agency) mandates contaminate limits and testing. MDEQ (Michigan Department of Environmental Quality, another government agency) was not properly testing to federal requirements. Still, the issue was known by residents long before it was fixed, due to... private testing.[1]
What happened in Flint was criminal negligence, but it had nothing to do with water supply being privatized (it wasn't), or a lack of monitoring requirements (although it's believed testing may have been manipulated... by government workers.[2])
[0] https://www.mlive.com/news/flint/2014/04/closing_the_valve_o...
[1] https://flintwaterstudy.org/2015/09/commentary-mdeq-mistakes...
[2] https://www.nytimes.com/interactive/2016/04/21/us/flint-lead...
Edit: Here's a good place to start - https://mphdegree.usc.edu/blog/the-flint-water-crises
Edit 2: Citations added.
San Francisco area also has surprisingly good tap water, likely due to the clay/soil in the areas the water is sourced from. In other places, like Florida, minerals and sulphur give the water a distinctly unpleasant taste, and shallow pipe depth keeps the water from getting cool.
Absolutely in taste. In terms of safety I think it is okay pretty much everywhere. If you live anywhere long term you should definitely look up the municipal water testing results at least once though.
Here is the link to a paper that compared contaminants in drinking water in various developed countries. When it comes to residual chlorine the USA demonstrated the highest levels followed by Singapore and Canada. After these three countries there was a huge gap before the UK and other countries which much lower levels.
Could it be that you are all so used to the chlorine, that you don't notice it anymore?
https://www.researchgate.net/publication/343719890_Comparati...
In addition, here is the WHO list of countries ranked by access to safe drinking water. The US is number 42 after Bulgaria and Guadeloupe.
https://en.m.wikipedia.org/wiki/List_of_countries_by_access_...
Residual levels show 3 mg/L of chlorine in the United States which is higher than most other countries (Singapore, and to a lesser extent, Canada, excluded.) What I don't understand is why you see these levels, which are considered safe by most health agencies, as a cause for concern. As another commenter pointed out, the chlorine exists to ensure the water is safe to drink.
The European Union is not a country and it is not surprising that it has no guideline, because the member states have. That the United Kingdom and Ireland are similar to the US is not surprising. I could not find a source for the value of 5 mg/l for Germany, most sources say 0,3 mg/l but the actual text of the current law doesn't corroborate that. What it does is strictly regulate the reaction products of chlorine, which makes sense from a health standpoint.
"Residual levels show 3 mg/L of chlorine in the United States which is higher than most other countries (Singapore, and to a lesser extent, Canada, excluded.)"
I am not a native English speaker, so forgive me if I read this wrong, but the paper says of all the considered countries the US has higher residual chlorine levels than all the other countries (Singapore, and to a lesser extent, Canada, included)
In other words US is highest, followed by Singapore and then Canada.
"As another commenter pointed out, the chlorine exists to ensure the water is safe to drink."
As the paper shows most developed countries have safe drinking water without chlorine. So the question is not why I am against it but why the US needs it in the first place .