Pliny the Younger (A.D. 62?c.A.D. 113). Letters. The Harvard Classics. 190914.
XCII. Trajan to Pliny
I WOULD have you proceed, my dearest Secundus, in carefully examining whether the ground you suspect is firm enough to support an aqueduct. For I have no manner of doubt that the Sinopian colony ought to be supplied with water; provided their finances will bear the expense of a work so conducive to their health and pleasure.