We're going to lose another three probably in a few years due to this thing. http://en.m.wikipedia.org/wiki/Emerald_ash_borer
We only had one green ash planted, but the developer gave the other two to us because they gave them to every house in the development because they're a soft wood, I think, so they grow pretty fast, and they're attractive shade trees. Only thing is that borer is on the eastern edge of the state and this is going to end like Dutch elm probably.
These are the kind of things that keep me up at night.