so, as michael pointed out, you already have that separation. the high tide back water is coming back in. we are going to replace that over time. president vietor: thank you. >> recycled water? >> to recycled water system -- the recycled water system. we will be building a new recycled water system for the island. it will be constructed by the waste water treatment plant. we will not be in stalling on yvi, because there is not that much demand on yvi as compared to the rest of the development. tri-utility systems. the whole system will be replaced over time. the navy system has to be maintained by the puc from oakland. then, it is picked up by the navy through the port of oakland property of the island. that will be transferred, just like the island, once the navy transfer occurs, and then to the puc and other power providers. >> ok. president vietor: are we going to have a decision at some point as to whether to take this on? when would that come before us? >> the timing of that -- >> prior to approval, we would pause for the feasibility study

investment and the resources that went into the existing building you are replacing, but as michael pointed out at the beginning, these buildings were built in the shortages of the time. it will take somewhere on the order of 20 years to 30 years to recoup those costs, but this new development will be here for many decades past that. the substantial investment it would take to continue to upgrade the existing buildings would make it more efficient, and it will this essentially eclipse in a couple of decades by the substantially more efficient quality of the new building. supervisor mar: what do you think would be the life expectancy of the structures built in this project? >> presumably 100 years or more. i cannot say specifically. we would hope that they would be at least the quality that was built they did before the era that this site was originally built in. we would assume many decades. definitely well past the life of what the trade of would be in terms of the body energy on the site now compared to new investments. there is a sustainability plan that is part of the document that is a com

michael in your thesis akaka it to. >> my first work on cities was done in about 1990 as well and we were influenced at the point in time by his work. one of the facts that came outas showing a correlation between small average establishment sizes, the competition and urban success. i think that is seeing the virtues of the idea flow in the cities which is not, this is an old idea as alfred marshall was high on this notion of 120 years ago it isn't something i think that separates us. i think i'd probably less optimistic about his vision for competitiveness in the inner city and i think actually there was probably too much emphasis on with the current competitive of advantage is relative to try to think of more game changing things that radically increase the human capital in these areas so that is the fundamental thing. it's not in giving out how to do low value-added services and inner-city areas it's figuring out to provide the skills and connection that enable them to grow and then of course there's 80% the book is about things unrelated to michael porter's core interest but certainly i share his enthusiasm for enthusiasm and connecting between people and din