Aqueduct Brings water from Rivers/Oasis/Mountains to boost population, Cities without access to fresh water get +6 Housing, Cities with access to fresh water get +2, Must: next to City Centre
Does that mean if a city has no access at all to fresh water i.e. it has no access to any of the listed sources (river, oasis, mountain), then building an Aqueduct still gives + 6 Housing? If however, the city does have access to the listed sources you only get +2 Housing?
Out of interest, if there is no access to fresh water, is the Aqueduct just finding some from thin air/underground i.e. what is it finding to justify the +6?