i would like to call first yolanda lewis. >> thank you for this opportunity to speak. i just wanted to speak to a blueprint for safety and mitigate risk mitigation strategies that we need to look at to address issues that we have with sea level rise, with our oceans and contamination of our water sources and with the sfpuc -- hunter's point point location being one of the biggest polluter of the bay i think we need to look at new strategies to address this. we had in june san juan bativitia and for two months couldn't use the tap water or showers because of contamination of the water sources and we have cities across america with examples of this happening and we would like to take the steps i have spoke about the technologies proprietary that are available and i don't think people are thinking about situations like the sea level rise and the planning process with the new developments coming under way. this puts us in a situation that we don't have a reliability and it's broader than just san francisco because we have cities along the bay that rely on hetch hetchy and