i would like to say that our general manager harin kelly was here but had to leave for a prior appointment and also with me is staff including stephanie harrison and the author of the people we're developing on the issues with 17th and folsom. if i can go to the powerpoint slide. san francisco is a beautiful city because of its hill sides but that creates certain challenges for us during storms. in particular san francisco has eight independent watersheds or eight independent valleys that have collection points during storms so as a city we need to develop a system that can effectively collect from all of the eight watersheds and deal with the storms as they come. as a combined sewer system we actually capture 94% of the rain that hit it is the city -- hits the city and treat it and discharge. in that regard we're ahead of many cities in the united states and don't collect the storm water and therefore making a positive environmental change. if you look at this area it's a large watershed, one of the largest that we have and water actual collects all the way far northeast north of the panh