They have a tall control tower that looks like a flying saucer from the air. But I have documented dozens of water treatment plants and none had control towers. What do they do up there? And how do they get up there? Looks like a freakin ladder!
The first link almost undoubtedly is of an architectural model. The second link goes to a modern photo of the actual facility, apparently from Google Maps / Street View.
I would guess that there is a stairwell inside one or both of the support pillars.
Well, unless the modelers were so into detail that they created perfectly accurate scale model vehicles in the parking lot (which also has extremely realistic stains) and weathered in footpaths in the grass… that’s a photo of a real-world place.
Upon looking more closely at the first photo, I now tend to agree. There’s something about it, when I first looked at it (and I’m apparently not the only one) that made me think it looked like a model.
How about an elevator that goes up between the two pillars? There’s a ladder on the outside of one of the pillars, which could be used for emergencies.
There’s a picture on their Facebook page which has more detail, which looks like elevator guide rails. And someone even mentions a glass elevator.