as you know, the calaveras dam and reservoir key components of the regional water system, water stored in calaveras is merged with water from the hitachi valet for delivery to customers in the east bay and elsewhere in sent to cisco. the existing dam is located in the southeast bay area, near pleasanton. approximately 132 square miles, of which approximately 3,500 acres are owned by the city of san francisco. east bay regional park district runs a park that is north of the reservoir, which is our closest neighbor in the vicinity. the dam is located one third of a mile from the calaveras fault, one of the three major earthquake faults in the san francisco area. the calaveras reservoir is the sfpuc's largest local reservoir, allowing a storage of almost 100,000 acre-feet of water. it provides 40% of the local water storage and 66% of the local water yield for the regional water system. in 2001, the sfpuc lowered water levels in the reservoir due to seismic concerns and a mandate from the california division of safety of cans, due to concerns over the seismic safety. the reservoir is curr

and we have an item for closed session related to the calaveras dam it. we have a number of senior staff here from the puc because this is an important thing to us, and we will all be available for any questions you have. i am about to turn it over to delete. >> good morning, supervisors. mr. clark, if you would not mind connecting the computer -- mr. clarke -- mr. clerk. i'm here to provide you the latest updates on the program. i will -- the data i will share with you today applies from october 2010 until now. since supervisor kim may not be as familiar with the water system improvement program, i wanted to start with a brief summary of the overall program. this is a multiple year capital improvement program that was initiated in late 2002 to upgrade the city's water system in an effort to improve its seismic and delivery reliability as well as meet water quality requirements and diversify our water supply portfolio. the program includes a total of 86 projects of various size. anywhere from a few million dollars to over $400 million. the projects are spr

as a result of responding to comments, we developed the calaveras dam project variant, which is a variant of the original project which incorporates specific actions to improve the access of steelhead to the alameda watershed. steelhead trout have historical used in alameda watershed, have been blocked from that portion of the watershed in the past eight years or so. the sfpuc has been working groups diligently to restore steelhead to the watershed. as part of this project, we will be releasing significant additional flows into the watershed from the dam as well as from the alameda creek diversion dam. we will also be constructing a fish ladder around the alameda greek diversion than to allow passage of steelhead trout, past the diversion. we will also be installing fish screens to prevent entanglement of the steelhead. that was a major topic of discussion. with respect to the east bay regional parks district, they have brought up a number of issues that are related to traffic concerns, access of their personnel to the park, perception with respect to asbestos at the park, and a number of

they did file an appeal on the calaveras dam eir, and that will be before the board budget committee tomorrow and before the full board next week. it has several components. i will try to give you an update on those. the first is that we will be paying $2 million. the $2 million would be to reimburse them for lost revenues for additional expenses because of the work being done over there. in some cases, it is about not having as many school groups go to that park area as they used to, to very large areas, like where there is a bridge, and when it was dry in the summer, they used to drive across is, and now that it will be wet, they cannot do it, so now, they have to build a bridge in alameda, so this would give them $2 million to pay for things. the second thing is that they do not want to have half of their staff working at the headquarters with the traffic and everything, so it will be giving them space in the courtyard, and we will be putting aside $50,000 towards a trailer -- so it will be giving elsewhere. the third is that we have been in a month-to-month lease with the park di

elements for the construction of 3,000 feet of 66 inch diameter pipe across the calaveras fault, including an engineering crossing over the fault. a new structure before it is delivered to our customers. new chemical interdiction facilities on the siphon floor. new isolation and valves to allow us to move water between the various siphons following a seismic event. to minimize the environmental impact on alameda creek, our construction contract specified the 550 foot segment of the new siphon to be located under the creek had to be built using a trench less technology. the contract specified the creek crossing is to be completed prior to october 15th to make sure we met the requirements outlined in a permit issued by the california department of fish and game. the subcontractor performing the tunneling work mobilized on site on august 24th and actual micro tunnelling operations started on some timber eight. then on september 22, the first days following the operation with the micro boring machine, and the advanced further beneath the creek. what is shown here is a simplified diagram of the

elements for the construction of 3,000 feet of 66 inch diameter pipe across the calaveras fault, including an engineering crossing over the fault. a new structure before it is delivered to our customers. new chemical interdiction facilities on the siphon floor. new isolation and valves to allow us to move water between the various siphons following a seismic event. to minimize the environmental impact on alameda creek, our construction contract specified the 550 foot segment of the new siphon to be located under the creek had to be built using a trench less technology. the contract specified the creek crossing is to be completed prior to october 15th to make

. >> reporter: anderson reservoir has two neighbors, the coyote creek fault and the calaveras fault justes away. the santa clara water district studied whether the dam would hold up during a 7.2 magnitude quake on the calaveras fault. >> what we're concerned about in case of an earthquake is if the dam would slump. that way it would actually drop in elevation and that if we have water behind the dam, that would go over top of it. >> reporter: a study found a major problem. the dam built in 1950 is perc d ed on sand and gravel, which could liquefy during an earthquake, making it impossible to hold the dam in place. and that could lead to -- >> a massive surge of water would flow down both of those directions, causing destruction in its path. >> reporter: these $1 million homes in morgan hill are potentially in that path. this map shows the inundation areas where the water would flow if the dam fails. >> reporter: if, in the event, we thought it could happen, we would notify the downstream cities and the account, and their emergency policemen and firemen would start an evacuation of those

additionally, at the local reservoirs, we will be getting a lot of releases from both lower crystal springs and calaveras. they are getting above the levels they should be at for this time of year. we have plenty of water to deal with. as i reminded staff, on july 1st, it starts all over again. having a good year is one thing but it does not save you in the long term. president vietor: are their financial implications? >> we don't have any use for the water in terms of the system. generic hydropower, it's just going down the river. the last number i saw was a couple of weeks ago with an excess of 11 million. president vietor: that's good news. thank you. >> other items of interest we thought we would list on the calendar. first, solar installation work update. there have been questions about the different projects on hold or not. >> thank you. as you know, we have had one project that was

this is looking down the temple access road, which runs straight down for about a mile, back to calaveras road. we are talking about here putting the watershed center off to the left side of this photo, wh

this is looking down the temple access road, which runs straight down for about a mile, back to calaveras road. we are talking about here putting the watershed center off to the left side of this photo, which purchased -- pe rches on top. this is a simple line drawing encasing all the guard in a modernized cents, providing for shop buildings along the lower line. to the right is the main administration building. there are warehouse facilities to the north of this. this is consolidating and paving this whole area. it is partly unpaved and full of potholes. it is dusty in summer and muddy in winter. this is a challenge in place to work. this is a shot of what we actually displayed at the sunol event in september of some visions for the alameda creek watershed center. we envision the three buildings that would be off to the left of the temple. there would include a classroom, meeting room, and interpretive facility. this should be something people could use for educational purposes, for making purposes for us, for other public agencies, and for folks in the local area, learning about our fac

from the association of bay area governments shows which roads could fail if a 6.8 earthquake hits on each of our major faults. san andreas, potentially 1,332 road closures. hayward, 1,138. and calaveraseport says you should be prepared to be stuck where you are for at least three days. >> it would be very wise to have disaster kits in multiple places. >> reporter: that means at work, at home and in your car. and have a backup plan for your kids. you may not be able to reach them for days as well. >> we haven't had one here in so long that was like a major quake that people tent to forget about it. >> reporter: that is until everything stops. garvin thomas, nbc bay area news. >> that is unnerving. >>> this sunday at 11:00, we have a wheel whodunit. it reads straight out of a novel. a dirty cop, a p.i., attractive female investigators and the takedown of a respected narcotics unit in the east bay. you'll hear on sunday about the confidential informant working on the inside. the cryptic e-mails and the mild-mannered magazine reporter who suddenly found himself a central character in one of the biggest corruption scandals to ro thun's sda ayt at's sunday at 11:00 after "celebrity apprent

from the association of bay area government shows which roads could fail if a 6.8 earthquake hits on each of our major faults. san andreas, potentially 1,332 road closures. hayward, 1,138. and calaveras, 573. be prepared to be stuck where you are for at least three days. >> it would be very wise to have disaster kits in multiple places. >> that means at work, at home, and in your car. and have a backup plan for your kids who may not be able to reach them for days as well. >> we haven't had one here in so long that people tend to forget bt it. >> that is until everything stops. garvin thomas, "today in the bay." >> in case you're wondering about the the roads in your neighborhood and along your commute, we did find an interactive map that you can check at the association of bay area government. you can find it on their website. >>> much more ahead coming up on "today in the bay." still ahead, who needs brawn when you have plenty of brains? the bay area city ranked number one in terms of falling in love. >>> and we'll take you outside to this view from oakland where the showers are beginning to let up just a bit. the wind will die down as well. >>> good sunday morning to you. live pict