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 treatment plant, the significance of our water treatment as we have one 1 gallon flush tanks, how do we get the material for the miles from the presidio to the plant. something we should all think about. as this has to travel through the pipes. we are not used to dealing with this. we have to change handout you we run our operations. it's not just enough water to transport the materials. we run four plans in san francisco. we refer to it as the newest one but it was commissioned in 1993. it's pretty old already. in treasure island we operate it on behalf of the