gpserror:
I think you are probably right.  The site looked wet to me in ESRI imagery (unknown date), but 2022 Bing Imagery more clearly shows what looks like ponds and land.  I have no idea what's changed since.

Regardless, landuse=brownfield is probably appropriate an appropriate tag for what I'm seeing, including the absence of a consistent land character.

https://wiki.openstreetmap.org/wiki/Tag:landuse=brownfield

 "Brownfield is a description which applies to many situations which can look quite different from each other on the ground, as it describes a state, and not necessarily a land cover."

TLMarks:
The imagery for the "satellite" view on Bing maps is one OSM can currently use.  You can thus see what I have in my editor here. 
https://www.bing.com/maps?cp=38.065237~-122.491466
