In our upcoming read on September 5, Pompeii: A Novel by Robert Harris, the Aqua Augusta plays a prominent part. Not to be confused with the Aqua Augusta in Rome, this is the Serino Aqua Augusta around Naples. The comprehensive page on the Serino with maps and photos is part of Roman Aqueducts, a private website by Wilke Schram of the Netherlands, which has data on a number of Roman aqueducts as well as external links. More links on the author page.
An astounding site!