. >> you say why not [inaudible] onoption is to fill in with concrete. would be reinstalling the tree? >> there would be a tree required if in many cases there are a new building particularly the planning department has the planting of trees required as part of that construction. that i have to maintain that tree. this is not a new building it may be this is not a required tree. its clearly -- >> if there was a tree here and you got a permit to put it in you don't have a right to take it out without a tree removal permit. i'm reasonably sure there was a tree here. if you want to abandon this you have to post there was a tree ascii permission to remove the tree. >> as we walk let's talk about the other odds and ends. here's a sewer vent. in san francisco we have sewers coming out from the building ask they is a trap with a vent and from here it goes the street to the sewer ask there is supposed to be a cap. >> so you don't smell the sewer. >> who's responsibility is that. >> property owner. that's a serious tripping hazard. how about this does this meet t