cycling water for example we're renovating our parks one by one i hate the fact that the deloris park is reportable water it should be recycled water if ginsberg were here he would say we would love to do that but we don't have it -- move aggressively even if it's one step at a time addressing needs thank you. >> thank you. >> i have a couple of questions quickly i wanted to know the nonportable water program you spent time talking about the future you would like to go into for san pran what is the cost associated to get us to that level of using nonportable water

consistently? >> the parts of our program recycled water water we're focused on nonportable for irrigation as well as on-site water treatment plans we have six projects online in terms of water treatment systems in the building we have total 25 other applicants that are considering using nonportable water in a district in san francisco. the number is growing. just in terms of when we pass the ordinance in 2012 that enabled a streamline process to move forward with these kinds of decentralized water system we're focusing on nonpotable when it comes to san francisco. >> so there are no costs? >> sorry. i apologize. the costs are to the building

owner so with treatment system may range from $250,000 to a million dollars it depends on the on-site water treatment system that is selected for example the in our building the living machine costs approximately $1 million in our system you will hear from 181 fremont they will know in terms of how much that treatment system is. there are 15 vendors, we have collected throughout the country that provide treatment system it varies how much water is collected and used etc. unfortunately there is no one answer there say range >> does that the mean building owners are able to select their preferred treatment system? >> yes. that's a great question. thank you. what we ask for is an engineering report that looks into specifically what water are

you going to collect gray or rainwater and how are you going to treat it? what treatment system are you going to reuse? a membrane bio reactor which is compacted versus water treatment machine. all of that is specific very detailed that gets approved by the department of public health. we don't say what kind of treatment system you need to use. >> thank you very much. supervisor kim? >> thank you. it was great to have an understanding the work our new city public buildings are doing in whole and to learn a little bit more about this proposed ordinance. i think is definitely a step in the right direction i think there is nothing more tragic than the amount of clean water we waste that could have

otherwise been gray water foundation drainage this is something good to see i noticed some of our publics buildings like pier 27 and a couple other sites you said their primary nonpotable ratter is rainwater? >> yes so pier 27 was collecting rainwater they were also complying with the city storm water ordinance as a way of complying with that ordinance and installing harvesting system to reuse the water for those purposes and uses >> these would require these large development projects would reuse rainwater gray water and drainage is it all three or either/or >> it doesn't require any particular -- they have to do a water budget then try to meet as

many of the water needs as possible. with those various sources >> one of the concerns i had about rainwater we haven't had a lot of rainwater. so in a year like this year i imagine could of these sites would convert to potable water instead. >> we have designed our program to cover all types of water sources so it's not just rainwater in case it doesn't rain there is also the opportunity to look at other sources that are more reliable and readily available and produced on a more ongoing basis. >> i know this is beyond the scope of ordinance supervisor weiner talked about sites on the east and west side. on the west side for irrigation and east nonpotable water to

developments if smaller buildings are interested in also converted to nonmore -- nonpotable what are the alternatives? >> for smaller use we encourage rainwater services using arraign barrel to catch your rainwater we also have what the city of san francisco you can install a three way install irrigation that is not spray for homeowners we have a program online in terms of material we're actively seeking a contractor to encourage more workshops and more outreach with our residence to expand the program further we anticipate nah program being up and running again. in the fall of this year.

>> i wasn't aware of that so single family own owners and smaller buildings go to pcu to rerout their water >> yup there is permit required from the department of building inspection if a homeowner wants to alter al tear yor plumbing if they want the bath water for outdoor there is the irrigation permit that is required by the building inspection. san francisco will permit that water to facilitate that process >> so we're paying for that permit. >> yes and the puc will rebate the permit fee to the homeowners and a manual online to help them how to install gray water systems >> for those that may not be

familiar are there any costs to doing that? are there any health concerns they should be thoughtful about when they convert housing to that type of system? >> that's why i have been stressing the word sub surface you are not treating the gray water what you are allowed to do under the state of california is take the laundry and use it in your backyard for sub surface irrigation and spray you don't want to come into contact with that water for health concern. also you don't want to irrigation any register tables you would eat. with gray water but there is certainly applications again we have had a program in place we will continue to resume that place once we get get another contractors so there is cyst from san francisco residents we provide workshop and training >> routing that water to your

toilet is there any potential kurns there? >> we handle that case by case basis i would defer that to june for the department of public health we want to ensure the public is protected pr any potential contaminates in the water. >> it's a great opportunity i want to make sure everyone is well educated on the safety of installing a system like that in our home which we want to encourage our residences to do >> thank you. >> thank you. >> thank you. i think it's also important to understand when there are treatment systems where you are actually treating the gray water black water really it can be used for so many different purposes which i think is really exciting for the future of water thank you. now for our final report before public comment i ask bill

worthan from urban fabric working on 181 fremont water reuse system. >> good afternoon my name is bill worthin i'm the founding principle for urban fabric -- we work with the san francisco green building code i'm here to talk about 181 fremont those of you that know 181 it's connected to the transbay terminal it's a hard connection to the public park it's the lower 2/3 in the building up in the cut is commercial use and the residence is 637 luxury residences year-and-a-half ago when we looked at this project it's in

the san francisco for the lead goal -- we were asked by jay paul and the architecture and orlandoidiaz and [inaudible] as well. we were asked what it would take to get to lead platinum we need to luke at water reuse this building has an on-site. membrane bio reactor the tanks are installed i will show pictures of it in a minute the tank takes all of the water from the residential units as well as bike changing in the commercial office runs it through p five building the gray water systems and back up to the toilets in the building it will save 1 million gallons a year. we did a water budget we're the first project in the city's

quarter of a million dollar grant to receive the system. what is here is the gold and platinum strategy with the gray water use what is it take to get to the use of platinum without game works changing the architecture which is not going to happen so we had to look at on sign water resewers we were the water on 528 -- and back in 2007 and 2008. so the architect had experience with how the technology worked and figure out how to allocate the space go through a water budget and figure out how it would work out. these are the tanks sitting in the basement right now the first with the person in front of it that is the membrane bio reactor the building is using rainwater

collection if this is a building under the storm water ordinance we would have to put in the tanks in the project any way. and there is tanks for the great water collection the pre treatment and the treatment before it goes back up into the building the reactor is we are talking about two types of reactors that do the same thing -- or a living within this is an aqua fill bio membrane reactor the system is eight by 16 feet treated 5,000 gallons of water a day to compare that is the same size system in 525 golden gate puc headquarters if this is all office tower would ut the same system 5,000 gallons a day. this system costs $300,000 to

install plus the rainwater catchment which is 120,000 plus the cost of the dualing plumbing on the waste side because we're in the purple pipe so the cost is on the purple supply side. these are the tanks if anybody would like a tour we are happy to set that up. we have brought developers through it. i think the key important in my experience with water reuse is 95% of the water goes into a commercial office building and 50% of the residential nonpolar resources this is an opportunity for us to deal with water supply and keep the potable sources with nonpotable supplies that is an important point. if anybody wants to know more about how the water works urban

fabric fabric.com blog i think the key points are the system practical i spent a week last june to kick the tires on the system they installs we brought the owner j paul kelly to being look at this we would not have it in if we didn't go through that experience -- cost recovery is reasonable there is an identity-nine year pay back the cost of water is where it's projected to go and the technology is real and practical i will leave it there and open up questions >> one quick question in terms to the cost to the system the break down in terms of the pipe installation versus the actual equipment to treat and recycle the water my understanding is a

cig kant majority for the pipe is the cost itself -- >> i agree. the cost of dual plumbing on the sanitary side so you are separating sinks toilets and showers which is gray from black is a notable cost if you built with a black water in a commercial office building you would not have that point >> i have two important points black warter is important and in the years we will see more black water as we should to be clear for members of the public in the so called purple pipe zone these buildings have already been built with the dual piping for 25 years? 20 years >> 10 or 15 years at least. very long time. >> a long time. >> yes >> so they're already required to be built with the piping that

cost is already there. >> that is the cost of doing business in the purple pipe district which is 181 >> thank you. da ma'am chair at this at this point we will move to public comment i have a few public comment cards peter boys ter from the bay institute and mr. cleveland brought in boma members to meet with us. tim colin who brought in several large groups to meet with us. john rizo for the sierra club peter g -- gym hof and bill already spoke. mr. cleveland? >> good afternoon supervisors thank you for the opportunity to xent on the legislation i would

to bring words for caution and context to the legislation in the past boma supported and worked for the cities in terms of adopting green building code we have one of the strictist green building codes in the city. we supported management and districting of the officings we supported when we need to recycle and do compost as well which is another added expense for operating an office building we supported the city when we need to man date for toilets and urinals refitting in your buildings we supported commercial construct with you need to put money into public transportation open face privately owned spaces you need to put money into new parks and

art we supported the city when it said you need to allow bicycles in office buildings now comes the latest requirement for construction in san francisco which is a small part of the water consumption in the state we're facing a statewide drought all commercial buildings throughout the state only use 2.5% of the water in the state so regulating this use of water is a tiny piece within san francisco it's really .9% of the water consumed in the state. to turntly understand the impacts of this cost benefits developers came up with statistics costs i will have a report to give you on the planning discussion with numbers -- >> if you could finish your

thought there. >> we're simply saying look at the cost we applaud your efforts to get the sfpuc to work through trailing legislation to provide incentives thank you very much the water you are using for water reclamation that is the water stream that will no longer be available >> thank you. if you would leave that on the banister we will put it into the record thank you mr. cleveland and thank you for bringing folks to meet with us. mr. colin -- >> i want to commend supervisor weiner and other sponsor in support of this legislation. i think the drought global climate change and california too painfully limited water supply is brought us to this day

here we are. we think this is important moving in the right direction i echo some of the comments mr. cleveland said this is one more cost that should be recognized you alluded to it in your remarks putting these in in a good idea and using hedge water squandering for the water we use now is no longer depenceable building these systems is a benefit to the rate payers and puc which has a grant program to incentivize this i think it's important to recognize where the benefits are and what we want to create i think it's important to find ways i recognize your legislation can't do this here to find wayses to offset the significant cost this is going to entail. and certainly the puc has responsibility to do this. they're working on this you

alluded to other things that probably would come from the planning department that may be far or parking space offsets there a lot of things we do that might be the wrong approach to say here build these were were supposed to provide recycled water years ago that being said don't hold this legislation up but continue to pursue ways for the benefits of this. thank you. >> thank you frr colin. mr. rizo >> john rizo with the sea ar raierra club -- as the new york times as

other outlets have put forward california's whole water system is outof date unfortunately it's based on a 19th strent ree model of still packs that lasted through july melted and filled up our reservoirs those days are gone with climate change we need a new water infrastructure it's got to be complete top to bottom redesign. this legislation sees that and attacks part of it. and we're happy to see this introduced and hope it goes forward. i would also point out that there are further legislation there are models to look at the city of san diego has done great things in particular cities in

australia has done great thing in terms of water conservation and use in ten year they have restructure that california needs i urge you to take a look at that as you go forward. thank you. >> thank you very much come on up. >> good afternoon peter drek mire with the pole trust i appreciate weiner bringing this forward i think it's timely and porpt tolumi river is 85% of our water we support this legislation one it could help the restoration of the wild talami river and prepares us for an era of uncertain water supply before there were dams on the

talami we had salmon -- there were a number of regulatory actions takes place. -- the don pedro dam of hegechi -- if more water is required for the river the puc would be responsible for some of that the state water board is working on standards for the bay delta. they're looking for increasing unimpaired flows of the twamali and san gentlemanjoaquin -- something

that is loetly controlled and helps us out with the storm waste water collection system this say great legislation we support you wholeheartedly and look forward to moving forward thank you. >> thank you very much. [inaudible]? >> good afternoon i'm peter boys ter geographer with the bay institution the bay institution is part of a new umbrella organization bay.org which has a black order machine recycling system as well as the aquarium of the bay the sea lion center. we too support and thank supervisor weiner for working with developers and city develops for better stewardship of our water resources this is kind of integrated work that is needed in california dealing with water issues of course the drought is a wake up call as we

realized more fully value the locally available water and the value of the water we diverse with the water that flows into the bay delta this is not only critical to meet the short term challenges of the dwouth but essential part of the integrated strategy for increasing demand and improve the long term for san francisco area and the whole region including the 1 million folks that get their water from the hegechi system -- and help the bay delta which has suffers from diversions san francisco can and should be a leader in the on-site reuse movement we

look forward to working with weiner to further on-site water conservation thank you. >> thank you very much. john math? >> i live now at 100 van ness there are some pumps in the basement of my building that takes the ground water to the sewer at a cost of $100,000 a year. in the civic center there is best described as an underground flew that causes water to flow east to the area there are ignorant and naive people that claim there is a hayes creek running in a babbling brook no

it runs 80-50 feet below the grounds there is an added cost to build what you call a bathtub under the building to make sure the water is doesn't seep into the liar and the garages. 1917 the city put a well at city hall to irrigate. that well was removed in the 30s when van ness avenue is rebuilt. it's good to know the puc and dpw is going to build a new well in un plaza but that is going to take the bulk of the water underground we need to have programs to take that water that is now being pumped that is now flowing underground and use it

in existing buildings new buildings rg and public irrigation in the area i don't think your legislation addresses that in the way that's required we're talking about 100s and mills of gallons of water. >> thank you. mr. hathorn we're working on separate legislation working on foundation which i agree we need to make better use of our foundation water i think the first step is to do an audit and compellation of the foundation water thank you for raising that issue any additional public comments on item one? seen none we will close public comment >> public comment is closed thank you very much. do you have any other remarks >> thank you for scheduling this today thank you to members of the community who came out to