In comments about yesterday's photo Margaret asked, "What is the flat surface we see?" Here's a closer view of it; it's a catch basin, part of the Las Flores Water Company's system. I don't know how it works, but I know it's part of a larger group. A snooty crowd, frankly. They're being a tad obvious about the fact that they don't want anybody inside their fence.
I took this picture from the back side of the basin or tank or tub or whatever it's called. That would be to the left side of it, in yesterday's photo. (Enlarge that shot and you can see the cyclone fence.) It may look a little rusty, but the rust is just to fool you. I've seen maintenance people around, taking care of it, patrolling the place and making sure nobody gets in. People take water seriously around here.
Fine, fine. Call it sour grapes but I don't want to go in there anyway. Stand next to the tank at the end of a hot day and it makes weird noises while it cools off. "Bloop. Boing. Doonk." Hell, I can hear that at home.