That may be the case in some municipalities, but based on what I encountered I certainly wouldn’t count on it.
After a few unanswered emails and phone calls to the water department of the township in which I live (in Central NJ), they finally got back to me saying (and I’m quoting them directly) “…we don’t do that…” , further stating that their annual report listing the contaminants in the water should suffice. They went on on say that they weren’t obligated to provide any other information but referred me to a few local places who could provide the analysis…for $375 - $500.
You may have better luck where you live. But if not, Ward Labs is your best bet…not expensive at all, they make it very easy to send your samples to them, and you get your results in a matter of just a couple of days.
Interesting. Back when I was living in the US, I used to get a water report mailed to me every year - every customer of the local water authority got one. I had thought it was a legal requirement; maybe it was in Massachusetts.
When I moved here I had a great conversation with one of the staff chemists in the water department. She seemed unable to understand what I was trying to learn - kept telling me that the water was very soft so I didn’t need any additives when using soap for my clothes. What was really funny about it was she was trying to be helpful; she had just never gotten questions related to brewing before, and was one of the rare Finns who didn’t speak fluent English. I finally sent a sample to Ward labs the next time I visited the states.