"The actual levels differ by municipality" was self-explanatory.
It was, and still is, but the rest of your comments make no sense to me at all. Both Kent & Seachem are very clear as to their dosage rates when treating for chlorine, and chloramine. The only problem that I've seen over the years with regards to dosage rates & water conditioners is one of reading comprehension skills by end users.
I don't have any problem at all with chloramine, because many years ago I took the time to learn how to effectively deal with it, just as I did with chlorine for many years before that.