I recently had occasion to consider the difference between “sewerage” and “sewage”.
I had never consciously turned my mind to this before. I had been inclined to think that, like “flammable” and “inflammable”, they were two ways of referring to the same thing. Or that they were variant spellings; maybe, for example, one was American English and one was English English.
Not so.
“Sewerage” is the series of pipes etc through which human waste is removed from the immediate vicinity of your house.
“Sewage” is what those pipes are removing.
In other words, what was seeping out from the underside of our old house in Melbourne in the 1990s wasn’t “raw sewerage”; it was raw sewage. (Whatever it was, it did make for a bumper crop of self-sown tomatoes. Shame about the smell though.)
It also means that the person who wrote this recent ABC News article had the distinction absolutely right. Unfortunately, they were let down by whoever wrote the three dot points at the top of the article. Your taxes at work.

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