Under the street, actually. I am in what Maine would call "urban." Our house occupies more than half of a 60'x120' lot, with our front porch about two feet from the front lot line. The street is the only place they _could_ put those cisterns.

Mosquitos? How could you tell the difference? Oh, I get it -- you're thinking of the _small_ mosquitos, the ones that don't require radar transponders and FAA registration....