can make a big difference. going through this slide -- >> 8 inches in the past year? >> no, the last century. >> i would have noticed that. >> no, that would be alarming. >> 3 millimeters a year right now. sorry. the parallel line right here is -- we will talk about the vulnerability of the storm water collection system which we have done before this commission. we will talk about how the salt water can get into the collections system and compromise our treatment processes. the orange line is the uppermost -- the lower level of the storm water collection system along the bay. this is the pay level. when water goes over these, they kick into the transport storage box which leads to

transplant. it can compromise the treatment processes. the green dots, those are annual peak times over the last century. you can see how they are going out. the sea level is increasing. this is important because this is the highest level of the year. what we have seen in the collections system is seven or 8 overflows per year over the last several years. we know that that will only get worse as the sea level rises further. we know that the inundation of the sea water into the storm water collection system will only become more frequent and potentially become a problem. this is something that we need to address. this will become more of a problem, of course, but these are the sea level rise curves

from the literature. this is 7-23 inches. this is the peak level which is adopted by the state. this is a 100 year tide level which would make that the frequency of flooding even more frequent. this will be seeing much more in this area and you will see more flow into the systems and this is a problem. this is a problem we are addressing with the prevention program. we are doing an analysis at 29 points along the bay which are vulnerable to or have seen inundation into the water system because of high tides washington. we have talked about installing these in the past. this would allow water to go out and stop water from going in.

this is the most sensitive to backflow. we are looking at how to dress back flow into the outflow at jackson street as the first design priority. this is adaptation. when i do my public speaking, i frequently talk about while we are in a year of assessment, that is not the only story. there are those who are planning on investing in preventing the effects of climate change which we know are coming. this is a good example of that. in the long term, the commission has approved levels of services which includes the goal of modifying the system to adapt to the effects of climate change. this will be focused on that as was mentioned by doing a number of things including a topographical survey and looking at where inundation might take place at different levels of sea level rise we might see at what

kind of designer strategies we should take -- design strategies we should take. what is the basis for the long- term strategy on sea level rise and the potential on the ocean side? that might be important for creating resilience for our system. from a climate change perspective, done carefully and correctly, caught the scent of the sites and what it tells us today and what it does not tell us today, wheat can be innovators in innovating this from a climate change perspective. you don't have that many opportunities to incorporate climate change into a long term capital planning. we should focus on rainfall

intensity. this is a very difficult thing to study. this is a trend that we will see greater rainfall intensity. we can do that. we are investing a lot of money in rebuilding systems. >> before you move on, i had a couple of questions on that. the rainfall intensity question, i am hoping that the discussions and planning that it can be in the context of climate change. we don't always remember that climate change is an overriding subjects that we should be paying attention to as we are designing our system. we want to keep water out of the system but of that intensity and using models, this would be very helpful. >> let me comment on the models. this is something that we spent some time on the plumas project.

this was just 435 operators among the five utilities. the advances are that we were looking at the intensity modeling question as opposed to long-term tenant -- trends in temperature and precipitation that the water business people care most about. this is for seattle, new york, and ask for the members of the alliance. the short answer was not really or not yet. the models are not sophisticated enough to deal at the temper of scale and the spatial scale that we think about. these are numbers of meters and members of minutes. modeling at a five-minute interval, 15 minutes, we would have a lot of wastewater utilities.

that does not mean that the size does not say anything of value. we are trying to evaluate the climate models. what we understand about what the systems and el nino, to qualitatively see how these might play out in the future. we can put this in the context of what the climate models say. there is data, we have to look at every piece of data that we have today. during the planning phase, this is an improvement program and we went back and look at seven

years' worth of data. we will see these in the bayside system. i have come up with a plan that we revisit every five years. we are looking at a storm intensity surge. >> i am glad that at work is ongoing because i do think that the adaptation peace moves us forward, the better. we know what is coming and some of this is already happening. you did not mention anything about our actual facilities in the southeast treatment. both of those are pretty low- line as well. -- low-lying as well. >> this does factoring and

looking at new facilities that will be in place for 5200 years. we are looking at many different aspects. we are looking at one that was considered which was a likelihood of flooding. we are looking at areas which would be inundated with in the foreseeable future up to 55 inches but we have 2100 to 55 inches because when you're building a permanent facility that we are depending on to treat our waste water, we would prefer it would be there. we do consider that when we are citing a facility. this would be a challenge as well >> with that end up on the pier? >> we have not got to that point and it would be some type of creative challenge. >> they are more interested in levees at treasure island. >> what is the salinization

fitting into this -- where does desalinization fit into this? >> there are strategies for water providers, especially in the west. those things seem to be approaches that make us less reliant on water falling from the sky or from flows in a river. we all know over the last 30 years -- >> where are we with that? >> as a new member, i don't know -- >> we have people that can answer this much better than i can. >> we are working with the park district and the disability --

municipality district on a regional project where we are evaluating establishing the project across the county that we can share to define what can be produced from that facility to determine if this is cost- effective. we completed a call it -- a pilot project last year. we are looking at what this could mean for us and other entities across the area. >> when i was a junk assembly man, this is an area that i was very -- when i was a young assembly man, this was an area that i was very interested in. this was because of the cost and not the nature of the technology. we have no reports that indicate what the cost efficiency will be at this point. >> we have different reports which have been coming down over the years -- which shows that

the cost efficiency has been coming down over the years. as membrane technology has include -- has improved, the cost has come down. this is competitive with other water sources out there. >> this is a priority for the puc? >> yes. >> i would be happy to receive more reading material on this area. >> maybe there is an appropriate calendar because i and stand that i am getting into a deep conversation honest. -- on this. maybe we can hear from energy on this topic. there is another issue related to climate change where it is my understanding that once salt water gets into the system, it

is difficult to get it out, to neutralize or to treat it wants is in the system. >> this compromises the -- that the plant depends on. if we don't do anything, this would be a potential problem. >> are there other technologies that can assist with this? >> getting the salt water out of the system t -- of the system? >> part of the operational strategy is that we don't pump from a certain area. we must circulate or di;ute what is coming in. -- dilute what is coming in.

as it moves higher and is coming in in multiple locations, we have to have a better plan. >> thank you. >> anything else on the waste water? thank you. >> energy efficiency projects have move forward which have resulted in savings. goo>> we are trying to get rid f the closed captioning on the front screen. >> in terms of saving on the gas side, in terms of production, 2200.

in terms of electricity generated were saved through efficiency, 11 million or more kilowatt hours per year. these have been moving forward says the last report to the commission. on the renewable side, but we have the sunset that has been completed and a number of other projects are under way. that adds up to the total kilowatts saved. this is reducing our car and foot print. this is making a major contribution to the accomplishment of our climate action plans. one is focused on everything within the borders of san francisco. this has set a goal of reducing our carbon footprint. we have made a significant contribution to the accounting process related to that by providing a community-wide emissions factor and understanding how this

contributes to meeting this goal. this plan is being updated by the department of the environment and terms of where we are doing this. then there is the department of climate action plan which focuses in on energy use department by department. department by department, our report is due in march. >> ab32, how does this fit into our action plans? >> this is not explicitly addressed in the department of climate action plan. it does have an impact on all of our operations because we are emitters. we have been participating at the air resources board where

the regulation implementing the directives are being established and the power enterprise is interested and focused on the electrical sector working group at the california air resources board. we are happy to report on that. cap and trade is a big piece end of our standard compliance is a big piece of that regulatory effort. we are scheduled to report on those issues. >> that would be great. it seems that there should be from the climate change perspective, a place for ab32 in the planning. >> the ordinance that established the department a climate action plans gives the responsibility for the content of those plants in the hands of the department of the

environment. we can certainly raise that issue all departments follow a template and this establishes what is to be reported. this goes to the related footprint all the way to whether you are accurately advertising the commuter savings programs. this is a very broad range of climate steps at the department of environments and having east department report on this -- each department report on this. >> additional activities, there are many of these. i will not go over them. there are a number of initiatives that are helping us to understand our own vulnerability locally.

i will move forward to the costs. the commission asks how much we are spending on this climate change resilience work. those costs are summarized to a large degree here starting with the most expensive item which is the single adaptation item. this is estimated at about 10- $20 million which is pending any future design work that my show that that figure needs to be changed. we have done some investing in a white papers that have been very educational for us with the water utility climate alliance and the calibration budget. each of these had been left wrist by significant investments from other places and i think it illustrates one of the advantages with the coalition that we have been doing. we can make an investment and understanding better these issues and follow that with many investments from others

that make the project program and our understanding that much more robust. we have money coming into the project to bring these people together to do the work. what is not included are the soft costs, the modeling groups, the south -- staff from waste water enterprise. ostill to be determined is the big issue as to how much will this cost. this will cost us a lot of money and our capital programs. we have talked about how these issues will be considered. we will be doing water capital improvement programs. we will be thinking about are their needs for adaptation and

investments on the capital investment side can tell -- the capital investment side. >> if we look go to the people which will find this which will be our ratepayers and we will save 10 million, 100 million, las vegas is spending 8 headed million dollars on their third in take, one could link this to climate change. if we will be talking about those kinds of numbers -- >> is that possible? >> we are sort of a desert here. >> the intake is from the entire colorado basin. this is all the way to mexico. this makes california water look a little bit simple. in the sense that the compact that governs how water is established and how it assumes

16 million feet come out of that system. the people who depend on that are wondering why the lake is at its all-time levels and why when they spend this money to get to the intake down below those levels where it is out now. they know they need to do it. the question is is a little bit of an irrelevant link. >> those people don't have homes. that is the other issue. i just wondered what of the comparison was them. why this was a comparable model. >> in the sense of their water system, this has 8 states that

get their water. we have our own self-contained, largely paid for project that has all of the advantage is that it has and our ability to control it completely on like colorado and the delta. because of the way that the drought has occurred in the southwest and in the colorado basin, it leads us to think about how drought might change for us and the effects of climate change on our own system. i was throwing out $800 million for the third intake to illustrate that there are significant investments that might be linked to climate change that others are making. at seattle, they're looking at significant investments. in south florida, they'regnifict investments. this is a common theme in the drinking water business that you need to look at your own system and where your vulnerabilities are.

>> there are other strategies in the western coastal states in respect to desalinization as well. >> this is being talked about at many locations. >> the rainfall is different. >> they are not as worried about water supply. las vegas is also thinking about using desalinization. they could trade with los angeles. >> there are current discussions to bring the water up to arizona. >> arizona has a slightly worse problem from the colorado situation. >> this will also have an impact on -- >> when we come back to our

ratepayers and say, here is how much money it might cost to respond, we need to have done our homework and that is what the current phase of our work is about. >> can you talk about this project? >> this is the metropolitan transportation commission. for agencies that always has concerns over regional issues related to climate change, both mitigation and significantly on adaptation, they are very concerned about sea level increase. i have been to one of their meetings. they have had two.

we are working closely to influence the state process because they are a bit of an adjunct of the state. they are trying to focus adaptation efforts to get people talking to each other and get people collaborating about what kind of science they're using and the adaptation plants they are making. -- plans they are making. some claimants science people. they have an extremely important role to play. -- some climtae -- climate science people. it is a good thing for people from the bay area to be talking to each other. they are bringing the initiative which is made up of

the executive officers of each entity and maybe board members of each entity i hope it goes forward because we need that influence on the bay area. >> thank you. >> other comments? thank you, that was very informative. we appreciated. public comment? we --appre -- we appreciate it. >> i have some comments about the presentation. first, the bay conservation development commission. they are currently working with other agencies on a strategy for dealing with sea level rise as a the encroaches on to our coast along the bay so that they have

a designed plan to have a retreat process where we are using the creation of a new national wetland area to mitigate of the sea level rise so that you are not going for burns and things out of the day. if you have a retreat strategy that uses wetlands creation, that is important. the reason it is important is that as the previous speaker said, natural systems mitigate storm water and wastewater. so, i would urge the waste water and storm water enterprise staff to engage with bcdc to get closely involved with that plan and to help plan out and do the retreat etc. with wetlands creation.

that might help in areas where the sea might be encroaching on the water treatment plants and things like that. on the amount of sea level rise, i have followed this for decades and can tell you that the 55 inches is updated. i guarantee that it will be 78 inches or more by the end of the century. have your staff pushed the envelope on those assumptions because 55 is not a good assumption anymore. with all due respect, you will find opposition from environmental groups on that. almost across the board, we will be resisting that because not only do you create the -- that has to be gotten rid of, but you also