AP on sewage
AP notifies that it will now change its sewage/sewerage entry to specify using sewage for both the waste and the system of pipes that carries it.
This is a good thing. Sewerage, which as a noun stands all by itself to represent the system of pipes, often was misused as sewerage system, which is inherently redundant. The city's sewerage carries the city's sewage.
But now we can go happily along and avoid that, resting assured that the city's sewage is carried in its sewage system or, more simply, by its sewers. Not a life-stopping event, but another point of discord we can safely flush away.