text: For anyone interested, they wouldn't show up on the map because they are underground. There is one mapped a few miles away as a water tower in the middle of the road, but there is clearly nothing visible there. Which makes sense because they wouldn't put a water tower in the middle of the road. So it will never show up on the photos. Here's a link discussing it https://www.citylab.com/design/2017/05/the-sublime-subterranean-cisterns-of-san-francisco/524853/ 
  
  That said, there is something looking like construction on the Esri World Imagery (Clarity) Beta images, and then painted circles where the construction was on the 
  Mapbox Satellite images. So I think they have built now. How to map them though is another thing. I don't think there is an underground water tank tag. I could be wrong though. Anyone have an idea?