On the whole, at the time of which we are speaking he was fairly well supplied with it; but in this, as in so many other matters of urban administration, it was under Augustus that an abundant supply was first procured and maintained by an excellent system of management.
Frontinus, to whose work _de Aqueductibus_ we owe almost all that we know about the Roman water-supply, tells us that for four hundred and forty-one years after the foundation of the city the Romans contented themselves with such water as they could get from the Tiber, from wells, and from natural springs, and adds that some of the springs were in his day still held in honour on account of their health-giving qualities.[66] Cicero describes Rome, in his idealising way, as "locum fontibus abundantem," and twenty-three springs are known to have existed; but as early 312 B.C.it was found necessary to seek elsewhere for a purer and more regular supply.

More than six miles from Rome, on the via Collatina, springs were found and utilised for this purpose, which have lately been re-discovered at the bottom of some stone quarries; and hence the water was brought by underground pipes along the line of the same road to the city, and through it to the foot of the Aventine, the plebeian quarter.

This was the Aqua Appia, named after the famous censor Appius Claudius Caecus, whom Mommsen has shown to have been a friend of the people.[67] Forty years later another censor, Manius Curius Dentatus, brought a second supply, also by an underground channel, from the river Anio near Tibur (Tivoli), the water of which, never of the first quality, was used for the irrigation of gardens and the flushing of drains.

In 144 B.C.
it was found that these two old aqueducts were out of repair and insufficient, and this time a praetor, Q.Marcius Rex (probably through the influence of a family clique), was commissioned to set them in order and to procure a fresh supply.

He went much farther than his predecessors had gone for springs, and drew a volume of excellent and clear cold water from the Sabine hills beyond Tibur, thirty-six miles from the city, which had the highest reputation at all times; and for the last six miles of its course it was carried above ground upon a series of arches.[68] One other aqueduct was added in 125 B.C.
the Aqua Tepula, so called because its water was unusually warm; and the whole amount of water entering Rome in the last century of the Republic is estimated at more than 700,000 cubic metres per diem, which would amply suffice for a population of half a million.