Don’t know if topography allows it, but a potential solution is to build aqueduct from outside the area that normally supports the city.
Aqueducts are enormously expensive long term projects requiring tremendous faith in long term planning. Major acquaint projects can take 50+ years to build. but once built they last almost forever.
Aqueducts are enormously expensive long term projects requiring tremendous faith in long term planning. Major acquaint projects can take 50+ years to build. but once built they last almost forever.