Here is a great chance to participate in a microbiology of the built environment citizen science project on gutters.
“Examining this water…I found floating therein divers earthy particles, and some green streaks, spirally wound serpent-wise…and I judge that some of these little creatures were above a thousand times smaller than the smallest ones I have ever yet seen, upon the rind of cheese, in wheaten flour, mould, and the like.”Antonie van LeeuwenhoekAs a rule
Source: The Wild Lives of Gutters – Your Wild Life
If you happen to be in the Raleigh area, you should sign up.
And if you are not in the Raleigh area but are driving through there, they state:
As of right now we are focused on gutters either in Raleigh, North Carolina and surrounds. Though if you happen to be driving through, we’d never turn down a sample of gutter muck.
I recommend they call this project “Gutter Check”.