gpserror
My guess is that it was a retention pond when the development was being established, but based from the vegetation growing there in the satellite image, it doesn't get wet there all that often.   I had the same sort of dilemma at https://www.openstreetmap.org/#map=19/40.46640/-105.07872 - this is a bit different as I do have local knowledge of how often this place is wet - which corresponds to the fact that there's no vegetation that's growing there in the satellite imagery as it's too wet parts of the year and too dry in others.  For what it's worth and without local confirmation it's probably as accurate as it will get as a "wetland".