The exact administrative borders of the “municipium” of Carreum-Potentia are unknown. It was located in the centre of a field that had been subject to drainage since the 2nd century B.C. It was inhabited by settlers from central Italy but was excluded from the great commercial route represented by the river Po and, it is thought, not included in the via Fulvia which connected Turin (Augusta Taurinorum) to Tortona (Derthona) which then headed towards the Tyrrhenian sea.
The Roman presence in the Chieri area is testified by about twenty epigraphs, found between the humanistic age and the nineteenth century, some of which have been lost, as well as by conspicuous remains of the aqueduct between Pino Torinese (Tetti Miglioretti) and Carreum Potentia.