speakers are tommy moala sf puc, commissioners ruth grav anis, environment commission and sushma bhatai. >> if i may introduce water since it's my favorite subject for a long long time and make sure that everybody knows that wastewater we are talking about sewage and rain water run off. we need to get people to be less afraid to say the word sewage because it's so important that we have a vocabulary to talk about it. michael carl in talked about the interesting challenge that we have related to the fact that we have a combined system and i'm happy that tommy moala is going to give us an overview of our water system. >> good afternoon, tommy moala in charge of wastewater. finally to the coolest part of the puc. talk about some wastewater. michael did indeed talk about that. we have a combined effect in san francisco. so here is a picture of our system here. he's described to you our combined system, what it does. we operate a thousand miles. as we talk about water conservation, we don't think about the sewage system. all of a sudden we went from 80 million gallons a day coming to our tre