other issue i have, and it's come up before, is that is anyone paying tangs to hearings that go on at the u.f. and d.p.w.? if they were considering putting in a tree, they would say no, i don't think this is a good idea, look at the problems these people are having, the fact that i might have underneath my property or near to my property a sewer that is invasible might make me say, i don't know if it is, i don't want to go through the expense of having a photographer go out and run his camera into there -- not a photographer, a plumber, run his camera and find out if i have vulnerable sewer lines so therefore i won't put in the tree because if i do the city won't allow me to do anything but go repair that, keep a tree that's going to be problematical that they no longer recommend because it has invasive roots, how do you respond to that? how do you respond to that person? >> that is a difficult answer to give, but i think i would say if -- i don't think it's in the city's best interest or anyone's best interest to have degraded sewer lines. so the sewer should probably be replaced, if there w

sidewalk there within that four by nine feet that was, you know, marked off by the white paint that the u.f. representative put on the sidewalk. so it's just -- i really felt that this would -- would just create a very large kind of dirt lawn in front of the house but it would be unfortunate and i'm hoping to keep the square around the tree a bit smaller. again, the meterociderus is aggressive and at this point fair i had -- it seems widely known to be quite damaging to infrastructure. the only thing i found online was information from the -- it's interesting because this is called a new zealand christmas tree, and the only root advice regarding the damage and advice clearly not to plant this tree by a local area was from auckland, new zealand and the picture of horrible, huge roots causing a lot of damage to the area where they're growing from the new zealand christmas tree. so in san francisco, i'm a bureau of urban forest rei's site, in fact it's listed as a possible street tree to plant. in fact, they're not being planted in san francisco anymore. that was the 1980's when they were plan