41°53′20″N 12°27′11″E / 41.888976°N 12.453132°E
The Aqua Tepula is an ancient Roman aqueduct completed in 125 BC by censors Gnaeus Servilius Caepio, who had served as consul in 141 BC, and Lucius Cassius Longinus Ravilla.[1]
The water from the Aqua Tepula was, as implied in the name, lukewarm at 16–17 °C at the springs and perhaps due to the sulphurous content was, as Frontinus states, originally not fit for human consumption.
The original daily flow was very low and barely reached 190 quinariae (about 8000 m3 per day).