vice president marshall: can you call item no. 9? secretary lt. falvey: item number nine, disclosed item 8. vice president marshall: a motion? please call the next item. secretary lt. falvey: the next

item is adjournment. vice president marshall.: we are injured.

because we have a great waste water system here in san francisco, we do about 80

million gallons of waste water here in san francisco, which means we basically fill up 120 olympic sized swimming pools each and every day here in the city. we protect public health and safety and environment because we are discharging into the bay and into the ocean. this is essentially the first treatment here at our waste water treatment facility. what we do is slow down the water so that things either settle to the bottom or float to the top. you see we have a nice selection of things floating around there, things from bubble gum wrappers, toilet paper, whatever you dump down the toilet, whatever gets into our storm drains, that's what gets into our waste water treatment and we have to clean. >> see these chains here, this keeps scum from building up. >> on this end in the liquid end basically we're just trying to produce a good water product

that doesn't negatively impact the receiving water so that we have recreation and no bad impact on fish and aquatic life. solids is what's happening. . >> by sludge, what exactly do you mean? is that the actual technical term? . >> it's a technical term and it's used in a lot of different ways, but this is organic sewage sludge. basically what it is is, oh, maybe things that come out of your garbage disposal, things that are fecal in nature. it's sludge left in the water after the primary treatment, then we blend those two over and send them over to digestion. this building is built to replace tanks here that were so

odoriferous they would curl your hair. we built this as an interim process. >> is there a coagulant introduced somewhere in the middle of this? . >> this coagulant brings solids together and lets the water run through. that gives us more time in the digestion process, more time to reduce the amount of solids. these are the biggest ones in the world, like we always like to do in san francisco. they are 4 meter, there's none like it in the world. >> really? wow. >> three meters, usually. we got the biggest, if not the best. so here we are. look at that baby hum. river of sludge. >> one of the things is we use bacteria that's common in our own guts to create this reduction.

it's like an extra digestion. one of the things we have to do to facilitate that is heat that sludge up and keep it at the temperature our body likes, 98.6 degrees. >> so what we have here is the heat exchanger for digester no. 6. these clog up with debris and we're coming in to -- next wet weather season so we always come through here, clean them out, make sure that we get maximum heat exchange during the colder wet weather. sludge season. >> rubber glove. >> right here. >> rubber glove, excellent. all right, guys. >> thank you. >> good luck. >> this is the full on hazmat. . >> residual liquid. we're taking it time to let it

drain. we don't want to get sludge on it necessarily. take your time. stand on the side of it. . >> should we let it release for a while? . >> let it release. >> is that the technical term? . >> this is the most important bolt on the whole thing. this is the locking bolt. it locks this thing right in place. so now. >> take your hammer and what we want to do, we get rag build up right in here. the hot water recirculates right in here, the sludge recirculates in here. the sludge sometimes has rags in it. all we want to do is go around the clean the rags. let me show you how. take the slide hammer, go all the way through the back, go

around. >> got you. >> during the real rainy season, how does that change the way dealing with this job? is it a lot more stuff in there? . >> what we do, charles, we do this quarterly. every four months we go around and clean all the heat exchangers so we don't have a large build up. . >> go around? . >> yeah. (sound of hammering). >> what i'm trying to do, charles, is always pull it out on the low stroke. >> right. so you are not, like, flying

out. now talk about clean up. . >> then where does this stuff get deposited? . >> we're going to dump it in a debris box and it will go back to the plant. >> if you think back, the romans came up with a system of plumbing that allowed us it use water to transport waste away from the hub of civilization, which enabled cities to grow. . >> you have a large bowl, a drive motor and another motor with a planetary gearbox with differential pressure inside there. the large mass up there spinning separating the solids from the liquid. we have to prevent about once a month, we go in there grease those, change the oil, check

the vibration levels. the operators can tell just by the hum of that machine that it's a harmonic noise emitted that it's out of balance and the machine needs to be cleaned. it will start vibrating and we have vibration analysis machines that will come over here and check the levels. so it's kind of an on-going thing that you have to stay on top of on a daily basis. >> handled properly, you take organic residuals, as we call them, that are leftovers of our society and turn them back into some energy. and we have another ability to take that sludge and get a nutrient value for crops there. we actually are running a kind of composting energy recovery system.

>> well, this is a dirty job. we try to do it safely and we try to do it without imposing too much on the public. people want to flush their toilets and have things go away and not be bothersome again. we do a lot to try to accomplish that. i'd like to invite you to come back any time you want. once you got this in your blood, you are not going to be able to stay away. the raging waters are fun and when we do digester cleaning i really hope you can come back. that's quite a sight. >> yeah, that sounds interesting. >> i really appreciate you coming by and it was a

>> hello, i'm meg, welcome to "culture wire." for this episode, the director of cultural affairs, luis, will take you on a journey through presidio has been tet. -- presidio habitat. >> welcome to "culture wire." today i'm at the presidio trust, a treasure within san francisco, because the presidio trust is really a national park in the center of an urban setting. it dates to the very founding of the city.

national park. toting me today to talk about this amazing exhibition at presidio habitat is cheryl hanes. can you tell me a little bit about the idea of the presidio habitat? >> succinctly, i have been long involved in the presidio. i was here when it was still a military base in the 1980's. i remember driving down walmart to the golden gate bridge and seeing the military guard at the gate and being utterly fascinated. >> so presidio habitat is an

exhibition where you have invited, how many artists to think about the habitat? >> we put together a list of possible participants, local, national, or international, of people who are concerned with environmental concerns, made some sort of contribution to the landscape and conversation we're having here. we said that broke -- proposal requests and we received 25 back. from that 25, we went through and chose tend to realize in the landscape. >> including this building, which is an amazing example of recycling. >> we are proud of this space. it was designed by a local architecture team. we said, we need something that

is a temporary structure, something that can be brought onto the presidio in pieces, act as an exhibition space for one year. we came up with the notion of shipping containers. it was important for us that we made this project for the place, of the place. what i mean by that is participants would also used repurchased materials. >> we will be speaking to one of the artists that you selected. what excited you about his idea? >> have many things. first of all, i am a fan of his architecture. because of that creativity, i knew that he could come up with something unique. i love the fact that he was

specifically addressing the landscape around here, and it was also about the human interaction with this place. >> what are your expectations with the people coming to presidio habitat? >> we really hope people will come with their family, dogs, and come back a number of times the works will change over the year. the feedback we are getting is you cannot do all of them on one visit. it is really better to come back and have different experiences. >> thank you. i am with mark jensen of jensen architect. he was one of the architects to be chosen to do the presidio habitat. when you heard about this project, what inspired you about that call? >> our inspiration is a great

blue heron. it was the site itself that attracted us. this is an incredibly beautiful outdoor room. we did a bit of reverse engineering once we knew we wanted to work here. which animals live here? the great blue heron jumped out at us. we walked around, and quickly, you get into another pace. you slow down, leave the city behind you. you can feel the wind and the breeze. in our increasingly frenetic, fast-paced, connected life, the chance to be of here and slow down a bit was part of the agenda. as part of the installation, it was suggested that this would be deliberately not mowed because

it would allow the sustaining of insects, plants, that would graduate -- that would gravitate to the area. >> that is right. i think you quickly notice that. >> thank you for being here. presidio habitat is an exhibition at the presidio trust. it will be in san francisco through may 2011. we hope you will come out to experience this amazing exhibition and great natural treasure. >> to learn more about the other habitats installations in the presidio, visit >> welcome to "culturewire." for the past year, the arts commission has been participating in the city's effort to revitalize the central market street corridor. in addition to the thursday arts

market and are in store front, the art commission recently launched the artery project. for the next year, the artery project will bring energy and excitement to market street, recalling the st.'s heyday as san francisco's vibrant and bustling theater district. >> un.n plaza during business hours seize hundreds of passing office workers and students, but the activity winds down at 5:00 every day. theater productions bring some but traffic, but central market is more of a thoroughfare than a destination after the sun goes down. on december 9, the artery project's launch brought a party atmosphere to market street, led by mayor gavin newsom, city

officials flipped the switch on three new art installations that light up the st.'s architecture. a looping a video at 1119 market street was the first words to be some -- the first work to be seen that evening. before the unveiling, the director of cultural affairs spoke to artist jim campbell about the concepts behind bourbon reflection and how he created the work. >> i'm really excited to have your installation on public view starting today here on market street. you created a site-specific work. can you talk about that? >> yes, i looked at two or three different locations, and this one seemed the best. i work with customer electronics, so indoors seemed the best for the work. i also like how close it was 2 market street itself. it is only about 10 feet away, so i chose this location.

>> what is the duration? if someone were to stand in front of your installation today. >> at the moment, it is 12 minutes, but i've been thinking about adding footage over the time because it is going to go through a couple of seasons. >> could you describe a little bit in terms of what your creative process is? >> it is a curtain, and image made up of a curtain, so it is very valuable, and the idea was to use this technology that i've been using for the last 10 years, low resolution imagery, to reflect market street back to the pedestrians walking by. the reason that it kind of works in this environment is that you see people walking by. you see cars going by. you see buses going by, but you cannot help we the people are because it is low resolution. you cannot see their faces. you can see the way they walk. you might be able to tell the kind of car going by. >> what do you think passersby

will experience? >> i was thinking it was going to be a test of the success of the work if people stop and look. i have noticed in the last few nights that people do stop and look. a certain percentage. one of the things i was playing with was the ambiguity of whether it is alive or not, so people walk by, and they might even move like this back and forth, thinking that they are in the image, and they realize that it is a daytime shot, and that kind of thing. >> thanks for being part of life on market street. >> my pleasure. >> after the lighting of urban reflection, mayor newsom led the party to the corner of seventh street. lighting the way down the street were members of the filipino cultural center's youth program, carrying traditional core role lanterns. on the side of the resort hotel is a projection titled "storylines."

working with students from the art commission writer's corps program, paul organized a series of images with text captions. they will change every evening until a different -- and tell a different story. one block away, theodore watson has created an interactive installation that crosses over six street. spaces' begins with a photo capture station on the north side of the street that projects your face on to a building on the south side of the street. on opening night, the installation was an immediate hit with the crowd. we talked with the or what said about his remarkable installation. >> what inspired you to create this interactive piece? >> the work i typically do is kind of interactive installations or both indoor and also outdoor and public space.

for me, what i'm most interested in is how we can use technology to make the city, which is typically quite a static environment architecturally speaking -- how can we make it come alive? >> what i love about your work is there is such sophisticated software and electronics and complex connections that all have to work together to make it successful, but yet, all of that is invisible to the people interact with the work. >> they do not realize there is all these cables and projectors and computers and all this technology behind the scenes, and if you can keep it hidden, it feels like a really magical moment. to me, that is what is inspiring, and that is what makes the public, their eyes light up. >> you feel a little bit like the wizard of oz? >> totally, yes. >> having been on market street for a while and seeing how the public is reacting to your piece, what is your impression of what it is going to be like

here? >> i'm already loving it. just the fact that i can look up and see someone seeing how crazy it is, and i have been bumping into people in the street who are recognized only from their portrait. i'm hoping that people will provide a slightly more friendly way to look at each other in this neighborhood. >> it is helping to reinforce and create a sense of neighborhood. so we want to thank you for being part of this project and thank you for bringing "faces" to san francisco. >> the artery project will have installations on market street until june 2011. this revitalization initiative is funded by the national endowment for the arts in an effort to transform market street into a nationally celebrated cultural district. additional projects and events will be launched throughout the

year, including art and storefronts and coordinated nighttime events hosted by the gray area foundation for the arts and the luggage store gallery. to learn more about the artery project, visit sf captioned by the national captioning institute --www.ncicap.org-- supervisor chu: good morning. welcome to the budget and finance subcommittee meeting. we will be joined by supervisor mirkarimi shortly. our clerk is mr. victor young. do we have any announcements today? >> please turn off all cell phones. if you wish to speak during public comment, please fill out the speaker card and turned it in to myself.

if you wish to submit documents, please provide them to the clerk for the file. items appearing today will appear -- supervisor chu: thank you very much. please call item no. 1. >> item #one. resolution authorizing the department of the environment to retroactively accept and expend a grant in the amount of $114,138 from the california department of resources recycling and recovery for the purpose of increasing used motor oil recycling and household hazardous waste management. supervisor chu: thank you very much. we have the department of the environment here. >> the morning, supervisors. this grant is to promote used oil recycling. the focus this year is on mechanics, people in the community that change other people's oil. we are finding the bulk of the oil not being recycled properly.