(Paper Cmd. 3 of 2002)
Sir, I thank the Members for sharing their views relating to the management of solid waste and water resources. This afternoon, I would like to respond to the solid waste issues first, followed by water issues. Yesterday, Assoc. Prof. Low Seow Chay, Mr Ang Mong Seng and Mr Low Thia Khiang asked about the reasons for the recent increase in incineration fees and refuse collection fees. Sir, there is no more landfill sites on the main island of Singapore. Today, 7,000 tonnes of solid waste are generated and burnt at our incineration plants every day. These 7,000 tonnes are burnt because we need to reduce the volume of our solid waste to preserve our landfill capacity. These 7,000 tonnes of solid waste are turned into 1,600 tonnes of bottom ash. We then landfill them at Pulau Semakau. The present approach poses two problems. Firstly, every 5-7 years, we have to build a new incineration plant. These plants are not cheap. For example, the latest plant we built at Tuas South costs $890 million. It is not cheap. The second problem is that every 25-30 years, we have to find a new landfill site, the size of Sentosa Island. I think Members here will agree with me that the present approach is not sustainable. It is not possible for us to build a new incineration plant at a cost of $890 million once every 5-7 years. It is not possible for us to find a new landfill site, the size of Sentosa Island, once every 25-30 years. We, therefore, have to adopt a new approach to the management of solid waste. Basically, we have embarked on three strategies. Firstly, we do whatever we can to encourage the reduction of waste, so that we can reduce the amount of waste that goes into incineration. Secondly, even for those waste that has to be incinerated, we try to find ways to re-use the bottom ash, so that they do not have to go to the landfill site. And, lastly, for those solid wastes which go directly to the landfill site without going through an incineration process, we also find ways to re-use them, so that we can move towards what we call zero landfill. Hopefully, the day will come when there is no need for landfill requirements at all. In fact, zero landfill is the only sustainable way for Singapore in the management of solid waste. This is the reason why we have no choice, but to continue to increase the charges for the incineration fees, not to make profits, but only to recover costs. Even with the latest round of increase to $77 per tonne, the amount collected is still below the full cost of processing the solid waste. 12.45 pm Incineration fee accounts for about 60-70% of the total operation cost of the public waste collectors. Companies that collect waste from the households have to pay for the incineration cost. The fees they pay for incineration accounts for about 60-70% of their business cost. This is the reason why when there is an increase in the incineration fees, they will have to recover this increase in the fees from the increase in refuse collection fees. The ENV is mindful that this adjustment will have some impact on our households and, in particular, on the SMEs. We have therefore spread out the increase over a period of few years. The last increase from $67 to $77 came up to about 15% increase. But, of course, incineration fee does not account for 100% of the business cost - only 60% of business cost. So, 60% of 15% gives you 9%. In other words, the refuse collection fees for households and SMEs would have to go up by about 9%, and not 15%, as mentioned by Prof. Low Seow Chay yesterday. This works out to about less than $1 per month per household. For HDB flat, it is about 88-95 cents per month. In the case of landed property, it is about $1.50 per month. In the case of the hawker centres and market stalls, it is about $5 a month. Sir, I know that nobody likes any increase in the refuse collection fees. But, as I have mentioned, the present way of managing our solid waste is not sustainable. So, the only way for us is to work together to enhance the level of recycling, as that is the only sustainable solution. Mr Ang Mong Seng asked at what point in time that the refuse fee can be lowered if the residents continue to support waste recycling efforts. Sir, this is a very good question. The refuse fee comprises two components. The first component is the service fee that we pay to the public waste collector for collecting the waste from our doorsteps. The second component is the disposal fee - for them to send the waste to the incineration plant for incineration. For every tonne of solid waste that the household is able to recycle, the public waste company will be able to avoid the payment of $77 for that tonne of waste, because he no longer has to incinerate that tonne of waste. But the problem is, on the whole, the level of participation in recycling, as well as the amount of waste being taken out from our waste stream, at this moment, has not reached a critical mass. As a result, the public waste companies are still not able to derive enough savings from recycling to compensate for the cost of recycling infrastructure. Sir, what it means is that, over time, if we can continue to encourage our residents and households to participate in recycling, then hopefully the day will come when certain precincts could reach the critical mass to the extent that the public waste collection companies will be able either to contain the rise in the refuse fees, or maybe even to reduce the refuse fees, because they will be able to derive additional value from the avoidance of having to pay for the incineration, as well as to be able to derive values from the recyclables. Sir, in this regard, the Members of the House here can actually do a lot to help us encourage the residents to take part in recycling. Hopefully, their precinct will be among the first to benefit from having achieved the critical mass in recycling. Sir, some Members may ask, is it possible for us to achieve a critical mass in recycling? For me, the answer is "Yes". In April last year, 2001, we initiated the National Recycling Programme. At that point in time, only 15% of the residents took part in recycling, meaning 1 in 7. By the end of last year, it has gone up to 22%, 1 in 5. By the end of this year, our target is to achieve 1 in 3, and by the end of next year, 1 in 2. In other words, if we continue our momentum in recycling, we can indeed achieve a critical mass in recycling. We have made a good start, but I would admit that there is still room for improvement. Take, for example, some households, even today, are still not issued with green bags, because the recycling company, for whatever reasons, decided that it is not worth their while to issue the green bags to certain categories of households. In some cases, the companies, even though they were supposed to collect the green bags once every two weeks, did not do so regularly. It has not been consistent and thereby created a problem for the households. At the same time, many of the private apartments and condominiums in Singapore are not part of the National Recycling Programme yet because the collection of waste for private apartments does not come under the ENV. Sir, in the coming months and years, we intend to take three actions to further improve the National Recycling Programme. The first action we are taking is to expand the coverage of the National Recycling Programme. In the case of the condominiums, the participation rate today is only 4%. Our aim is to increase it to at least 30% over the next two years. ENV has started working with 14 major managing agents in the private sector to introduce recycling to the condominiums managed by them. Some of them have indicated to us that they do intend to introduce recycling within the next 3-6 months. The second action that we are taking is to improve the quality of service of collection. ENV is now looking into the introduction of what we call "Minimum Quality of Service" (QOS). These QOS standards will be imposed on all the public waste collection companies, and all companies that want to take part in the collection of recyclables. For example, we are looking into the possibility of requiring them to provide 100% coverage to every household within their area of responsibility. It means that they cannot pick and choose. Secondly, door-to-door collection must be done at least once every 2 weeks, and on a fixed day of the week, so as to make it easier and less confusing for the households. Last, but not least, they must be committed to collect a minimum list of recyclables, so that the scope of recycling can be broadened over time. At the same time, we will also encourage them, for example, to place recycling bins in void decks, to supplement the door-to-door collection. Last, but not least, we will continue to strengthen public education, and to improve community awareness. Sir, in this regard, we will be working very closely with the grassroots advisors, Town Councils and so on. For example, we will put up posters on notice boards, in the Town Council Newsletters, and we intend to conduct roving exhibitions at the various community centres. Sir, we believe that these three actions, when taken, will be able to ensure that the operation of the National Recycling Programme will become smoother and, at the same time, lead to a greater level of participation by the households. Hopefully, this will lead to a reduction in incineration, and thereby help to contain any potential rising cost in refuse collection in the future. But, of course, to reduce incineration, household recycling alone is not enough. We will continue to promote recycling in the industries. In fact, we are very happy to see that the level in recycling in the industries has improved last year in the areas of construction and demolition waste, used copper slab, paper, cardboard, and so on. We are also beginning to see the recycling of food waste from the food industry. All these are very encouraging signs. Sir, in the coming years, in order to reach a 60% target by 2012 under the SGP 2012, we have set ourselves much higher targets for a whole host of waste stream. Sir, having addressed our strategy to reduce incineration, I would like to go on to talk about what we can do with the incineration bottom ash, when it comes out from the incinerators. As I mentioned earlier, everyday 1,600 tonnes of incineration bottom ash are being produced from the burning of the solid waste in Singapore. At this moment, they account for two-thirds of the waste that end up in the landfill site in Pulau Semakau. Sir, we believe that if we can find ways to reuse this bottom ash, then over time, we will be able to reduce the demand for landfill. We started doing this with the LTA. A pilot project is now on-going. We were using the Incineration Bottom Ash (IBA) for road construction. If this project is successful, we do intend to broaden the use of IBA. Sir, let me move on to the third strategy, which is to reduce the solid wastes that are not being incinerated, but end up in the landfill site directly. We call it the direct landfill, eg, construction and demolition waste and used copper slab. Today, these are the two top solid wastes that end up in the landfill site directly, and they account for 50% of our direct landfill waste. So, we have decided to set a higher target for recycling these two waste streams. Sir, take for example the case of construction and demolition waste. We are now working with the construction industry to see how we can increase the recycling rate from 85% today to 90% by the year 2012. At the same time, in the case of the copper slab, from 90% to 95%. Sir, yesterday, Mr Ang Mong Seng asked whether something can be done to recycle tree branches, trimmings and so on, and turn them into useful products. Horticultural waste, as mentioned by Mr Ang yesterday, is not small. Every year, we produce about 280,000 tonnes. These are basically generated by the landscape contractors of NParks and the various Town Councils. Sir, our intention, basically, is to create more facilities in the private sector, through the private sector, so that some of this horticultural waste can be turned into compost and charcoal. Two new facilities will come into operation by the end of the year. Our target is to increase the recycling rate for the horticultural waste from 32% today to 70% over the next 10 years. Sir, the overall outcome of these three strategies that I have mentioned - reduce incineration, reuse bottom ash, as well as reuse and reduce the direct landfill, will hopefully help us to reduce, not just the amount of waste, but also the amount of waste for landfill. Today, we dispose about 2,400 tonnes of solid waste in the landfill site, and this quantity is expected to increase to 3,300 tonnes by the year 2012, an increase of almost 50%. We believe that the three strategies outlined earlier will enable us to reduce the waste disposed at the landfill site by 50%. Sir, instead of going up from 2,400 tonnes to 3,300 tonnes over the next 10 years, we should be able to reduce it, from 2,400 tonnes to 1,600 tonnes. And if we can succeed in doing so, we will be able to reduce the need for new incineration plants from 1 in every 5-7 years to 1 in every 10-15 years. But, more importantly, we will be able to extend the life-span of Pulau Semakau from 25-30 years today, to at least 50 years in time to come. Sir, I will now go on to address some of the specific cuts brought up by the Members. Prof. Low Seow Chay asked why do we allow some recycling companies to collect more waste than they could, and as a result pose a fire risk. Sir, ENV is aware that some of the recycling companies do accumulate a large amount of waste at their premises. What they really have to do is to upgrade their recycling operations, so that they can recycle these wastes faster and more efficiently. Under our Innovation for Environment Sustainability Fund, we are working with some of these recycling companies to see how we can help them to come out with new and better methods to recycle their wastes. For example, we are now working with the industry to see how we can process the horticultural wastes to produce compost in a shorter time so that the quality will be more consistent and better. At the same time, we will continue to enforce strict actions against those who deliberately flout the regulations. Over the past five years, we only had two cases of fire in the waste recycling facilities. One case was the wood waste recycling company at Lim Chu Kang. The wood waste caught fire in March 1998. The SCDF conducted an investigation and came to the conclusion that the fire was not set deliberately. So no legal action was taken against the company, but that company did clear the debris very promptly. The second case was the fire in November last year. I think this was the case cited by Prof. Low Seow Chay. As the case is now in court, I will not comment further on the case. 1.00 pm Prof. Low also asked whether there are any rules on enforcement to prevent the refuse trucks from leaking sullage water. Yes, indeed, there are rules and regulations on refuse removal operations. The waste collectors are required to use compaction vehicles for the collection of domestic waste, as well as various organic wastes. They have to minimise the smell and they have to prevent the spillage of waste. Before they embark on the road, they have to drain off the sullage water from the compaction of refuse into sewers in the bin centre. We are aware that there are some trucks that are still not conforming to the rules and regulations. The ENV will continue to take enforcement action, and will pay particular attention to the locations cited by Prof. Low. Prof. Low also asked whether we have any rules to prevent vehicles carrying construction debris and sand from polluting the environment. The lorries are required to cover up the construction materials. The ENV carries out enforcement rounds regularly. Last year, there were 54 offenders. When they are caught, for the first offence, they are fined $150; second offence, $200; third offence, $250. Beyond that, for subsequent offences, these are not compoundable. They will have to go to court and the fines will be determined by the court. Sir, I believe I have addressed the issues relating to the management of solid wastes. I will now move on to address the issue relating to the management of water resources. On 5th April, the Prime Minister said in this House that Singapore will move away from our reliance on Malaysia for water. Yesterday, several Members - Dr Teo Ho Pin, Prof. Low Seow Chay and so on - have also called for the Government to increase our self-sufficiency in water supply. Sir, in 10 years' time, on the demand side, we can expect our demand to go up by about one-third, meaning that we will be consuming one-third more than what we are consuming today. This is on the demand side. On the supply side, the expiry of the 1961 agreement in 2011 will reduce water supply from Malaysia. Basically, the Members are asking, when that happens in 2011, with higher demand and lower supply, will we be faced with water shortage by then? Broadly speaking, Members of the House, as well as members of the public, are concerned with three issues. First, will we have enough water by the year 2011, if the 1961 agreement is not renewed and extended? Second, will we have enough water from 2011 to 2061? Lastly, what happens after 2061? Sir, I am glad to assure this House that even though the 1961 agreement will only expire in 10 years' time, the Government has already embarked on several key projects to increase our own water supply. I will now give the House an update on this. First, we are going ahead with three major projects to increase the supply of the local catchment water. We are going to convert the Marina Basin into a fresh water reservoir. Second, we want to create a new reservoir, down stream of the Lower Seletar Reservoir. Third, we are going to link up all the reservoirs in Singapore, so that we will be able to maximise the yield of the various catchment areas in Singapore. These three projects will be completed by the year 2009. They will significantly increase the supply of our local catchment water from where we are today. Secondly, we are going to proceed with desalination as a new source of water supply. The cost of desalination has come down steadily and rapidly by 50% over the last 10 years. PUB has therefore called a tender for 30 mgd of desalination water. The tender will close on 31st May. The plant will come into production by 2005. Besides desalination, what are the other options? Yesterday, Prof. Low asked whether we can ferry water from Australia, New Zealand, Indonesia and so on. Let me explain to the House that we are talking about securing water supply to meet the long-term requirements of Singapore. We are not talking about having additional supply to solve our problem for one day, one week, next five years or next 10 years. We are securing water supply, hopefully, that will strengthen our supply system for the next 50 years, 100 years and beyond. In this regard, I do not feel comfortable relying on this idea of ferrying water, no matter what is the amount, no matter how cost effective it may be, from places like Australia, New Zealand and so on. As pointed out by Prof. Low, in times of emergency, maybe those options are viable. But, for today, I want to talk about long-term water supply, meaning sources which will be able to provide good quality and substantial quantity of water over a long duration - 50 years, 100 years and beyond - and at a competitive price. Otherwise, over time, we will not be able to contain the cost of water if these water sources are not cost competitive. With that in mind, I would say that the two strategies, which I outlined earlier to expand the local catchment area and to increase water supply through desalination, are what I call the strategies of addition. For example, let us say that in our zoo today, we have only one lion. If we decide that one lion is not enough, and we would like to have four lions, what do we do? One way is very simple. 1 plus 3 equals to 4. So we go out to look for another three lions. We bring them to the zoo. Then, 1 plus 3 equals to 4 lions. So this is the strategy of addition. Sir, there is another approach. Assuming that we have a lion, and why do we not find a lioness? With a male lion and a lioness, they can together produce baby lions. 1 plus 1, multiply by 2 also equals to 4. In other words, as we look for a long-term supply solution, we should not confine our mindset to just looking for new water sources to add to our supply. But, more importantly, we should think about how we can multiply the capacity of our water supply. Sir, this leads me to our third strategy which is to develop water reclamation into a major source of supply in the long-term supply system of Singapore. Some may ask what is the difference between water reclamation from desalination. Why do we say that desalination is addition? Why do we say that water reclamation is multiplication? There is a big difference. Today, we consume 300 million gallons of water per day. Every single drop of the 300 million gallons of water, after being used, is treated by PUB to internationally accepted standard before it is discharged into the open seas. And to make sure that this water is treated to the standard required of the international community, we continuously invest in our infrastructure to ensure that sewage water will be treated properly. This is precisely why we embarked on the DTSS (Deep Tunnel Sewerage System), as mentioned by Mr Zainul yesterday. The DTSS is our long-term solution to ensure that every single drop of used water will be treated properly and in the most cost-effective manner. In other words, the implementation of DTSS is to help us save money in the treatment of used water. It does not incur additional cost. In fact, it saves us cost. Therefore, the concern that the DTSS may lead to higher water prices in the future is unfounded. Secondly, Mr Zainul also asked whether we can find ways to use the DTSS for other utilities. It is a good idea, except that the DTSS is very deep. That is why it is called deep tunnel. It is about 30-50 metres underground. It is too deep for us to use it for electricity, cable and so on. Having said that, let me come back to the point about water reclamation. As I said, every drop of water is now being treated before we discharge it into the open seas. At this moment, only 5% of the water after treatment is reclaimed as industrial water. The other 95%, or more than 280 million gallons per day, is being discharged into the open seas, and is really wasted. Today, with the advancement in membrane technology, it is now possible for us to recover a good percentage of this 95% of treated used water and turn it into clean water again. In other words, we can really give every drop of water a new lease of life. Instead of releasing this water into the open sea, let this treated used water be mixed with sea water, and then take it back to go through desalination, which will be very expensive. Basically, we are saying, why do we not capture this water before it is being discharged into the open sea? So, we turn the treated used water into new water, and we give it a new lease of life, and that is why the PUB has called it the NEWater. Dr Teo Ho Pin yesterday asked whether this strategy is a costly option. Will it be very expensive? In fact, water reclamation has two major advantages. Firstly, it is much cheaper than desalination. In terms of capital cost of the facility for reclaimed water, it is about half that of desalination. Secondly, in terms of energy consumption - energy cost - water reclamation costs only one-quarter to one-fifth that of desalination. Putting the two together, the saving in capital cost and the reduction in energy cost, in fact, NEWater will cost about half to one-third that of the cost of desalination. The second advantage of NEWater is that it is clean. It is even cleaner than PUB water. If we are to look at the total organic carbon of NEWater, it is less than one-tenth of PUB water. Precisely because of that, the industry users find NEWater to be very attractive. Take, for example, the wafer fabrication plants. Today, they take our PUB water and process it to reduce the total organic carbon to a level that is acceptable for their operation. This will cost them money. But starting from next year, all the wafer fab plants in Singapore will be using NEWater instead of PUB water. Why? Because NEWater is cleaner than PUB water, and is more suitable for their operation. Yesterday, Prof. Low Seow Chay asked what are we going to do to market NEWater beyond wafer fabrication plants. Sir, this is a very good question. Our intention is to set up a reticulation system to reach out to various industrial estates and commercial hubs in Singapore, so that over the next 10 years, we will be able to expand the use of NEWater beyond wafer fabrication plants, to various other sectors such as semi-conductors, chemicals, electronics, utilities, engineering and so on. Starting with 15 million gallons per day next year for the wafer fabrication plants, our target is to expand the use to more than 55 million gallons per day by the year 2012. By the year 2012, NEWater or water reclamation will account for at least 15% of total water demand in Singapore. Sir, this increase in our water supply, namely, local catchment expansion by the year 2009, desalination by 2005, and NEWater by 2003 will be more than enough to make up for the drop in Johor water, by the time the 1961 water agreement expires in 2011. In other words, to the question whether we have enough water by the year 2011, the answer is yes. We will have more than enough to make up for the reduction in Johor water. At the same time, this increase in our own supply will enhance our self-sufficiency in water supply. Sir, the next question is: during the period between 2011 and 2061, will we have enough water? During this period, beyond 2011, we expect our total demand for water to continue to increase, as our population continues to grow and the economy continues to expand. On the demand side, we need to conserve as much as we can, a very important point mentioned by Dr Teo Ho Pin yesterday. The PUB has an on-going educational and publicity programme. Over the years, the education programme and the restructuring of our water tariffs have been effective. Take, for example, in 1996 and 1997, the increase in water consumption was about 4-5% a year. By 1998 to 2000, it dropped to 1.2%. Last year, the growth in water consumption continues to decline to 0.5%. Therefore, I share Dr Teo's point that it is very important for all of us to continue to do whatever we can to create this awareness towards water conservation. 1.15 pm At the same time, on the supply side, we will continue to increase our own supply. With the three projects which I have outlined earlier, there is still further scope for us to further expand the catchment areas. At the same time, with the cost of desalinated water coming down, there is still scope for us to continue to increase the amount of desalinated water. But, more importantly, there is still tremendous scope for us to produce a lot more NEWater from 2011 to 2061, and beyond. Sir, let me just share with the House here that the multiplying effect of NEWater is tremendous. For example, if we were to reclaim 50% of the used water, we will be able to double the water supply capacity in Singapore. Today, membrane technology for water reclamation can achieve a recovery rate of up to 75%. At 75%, it means that every drop of water can be turned into four drops of water. This is the power of multiplication. So, the adding to and the multiplying of our water supply system - expansion in local catchment areas, desalination and water reclamation - is a very effective and very powerful combination. Furthermore, the challenge of water shortage is not a problem faced by Singapore alone. It is a global challenge. We can be sure that there is research going on today looking for cheaper and better ways of producing water. We can expect a breakthrough in technology in the coming years and decades. We intend to take full advantage of any technological breakthrough. Sir, on the whole, this diversified platform of water supply will enable us to increase our water supply in a sustainable manner for the next 50-60 years and beyond. Therefore, the answer to the second question, whether we are confident of having enough water from 2011 to 2061, again, is yes. Yesterday, Mr Othman and Mr Ahmad Magad asked whether NEWater is safe to drink and, if so, when do we plan to use it for potable use. The use of reclaimed water for potable use is not new, as pointed out by Mr Othman. This has been done in several parts of USA for more than 20 years. Take, for example, just outside of Los Angeles, a place called Orange County, they have been using water reclamation since 1976 under a project known as Water Factory 21. This Water Factory 21 produces 13 mgd, and is supplied to a population of about 2.5 million. They have plans to increase the capacity of Water Factory 21 to 110 mgd over time. Another example is North Virginia, a place called Fairfax County, just outside Washington D.C. Since 1978, they have been implementing water reclamation for a population of about 1.2 million. Today, this water reclamation plant produces about 44 mgd. Again, they have plans to expand it to 70 mgd. At these various locations, they discharge the reclaimed water into the reservoirs, either aboveground or underground reservoirs. The reclaimed water is then further processed together with the water in the reservoirs, both underground and aboveground. The whole process is what we call the indirect potable use of reclaimed water. This means they do not consume the reclaimed water directly, but go through the process of mixing it with reservoir water and process it for the second time. Members may ask, if we say that the quality of reclaimed water is so good, why then is there a need to process the water one more time, by mixing it with reservoir water? I asked the technical experts and the answer given to me is very interesting. The technical experts told us that the reason they do this - indirect potable use - is not because the reclaimed water is not clean enough, but rather it is because the water is too clean. After going through dual membranes and ultra-violet, it is so clean that the process takes away the minerals and nutrients in the water. As a result, in all these places, what they have to do is to mix the reclaimed water with reservoir water because this is the easiest way to put back the minerals and nutrients into the water. After processing, it is consumed. Sir, another point to note is that while this process of water reclamation started in the 1970s in USA, it is becoming a growing trend in USA and other countries today. Why? Because the technology is improving all the time. The quality of the reclaimed water is improving and, at the same time, the cost of water reclamation is coming down. We were told that in Atlanta, Georgia, they are now building a water reclamation plant. Starting with 15 mgd, which will come into operation by 2005, it will eventually be expanded to 50 mgd. Again, North Virginia, having been very successful with the project that I mentioned earlier, is now building another plant. Starting with 10 mgd, it will come into operation by 2008. Basically, what is happening overseas has given us a lot of confidence regarding the potential indirect potable use of reclaimed water. Sir, in the case of Singapore, the NUS laboratory has been conducting very comprehensive analyses of NEWater to ensure that the water quality is indeed as good as what the technical literature has put it up to be. These analyses are supervised by a panel of experts, both internationally and locally, because we want to make sure that we tap on the best brains in the world. The process started more than two years ago and tests are now on-going. So far, the NUS laboratory has conducted 20,000 analyses over the last two years, and they have established that NEWater is cleaner than PUB water. Normally, we look at water quality from three angles; first, in terms of chemical quality such as the total organic carbon, minerals, nutrients. They have established, after 20,000 analyses, that NEWater is even cleaner than PUB water. Next, in terms of physical quality such as clarity and colour, again NEWater outperforms PUB water. In other words, NEWater is WHO+, because it is able to meet and exceed the World Health Organisation's standards. This explains why it is attractive to the industry for use as high-grade water. The third aspect is the bacteriological quality of the water. This is a very important factor because for potable use, we are concerned about bacteria count, viruses, and so on. Sir, here, I am happy to inform the House that based on the 20,000 analyses so far, they have established that the bacteriological quality of NEWater is as good as PUB water, because the presence of bacteria and virus is not detectable - it is so low. It is just not present in the water, thereby meeting the World Health Organisation's standards again. In other words, if we look at NEWater, it is not only WHO+, it is also PUB+. It satisfies all the WHO's standards and it is even cleaner than PUB water. Notwithstanding that, there is no need for us to rush the process. We intend to take it one step at a time. The next step is for us to await the recommendations from these international experts. We give them enough time to conclude their studies. We expect the recommendations to come to the PUB and the ENV sometime in July. Sir, Mr Ahmad Magad asked when will the Visitors' Centre for NEWater be ready. I am aware that the interest in NEWater is now getting higher and higher. This is a good sign. The PUB is now building the Visitors' Centre at the Bedok NEWater Plant, which will be ready by early next year. At the same time, to make it more convenient for our school students to get to know more about NEWater, we are exploring the setting up of a Visitors' Centre in the Singapore Science Centre. Sir, let me sum up the issue of water supply. As Members of the House have mentioned, it is very important for Singapore to secure our water supply, and to be more self-sufficient. With the increased supply of our local catchment areas, together with desalination and NEWater, we are now diversifying and increasing our water sources from two today - Johor water and local catchment water - to four by the year 2005. In other words, if we look at Singapore as a country, we will have four big national taps. What is even more important to note is that the water coming out from each and every one of these four taps is of equally good quality. Should the supply be disrupted in any of these four taps, the other three taps can provide the mutual back-up to the fourth tap. We do not know what will happen to the supply of these four taps. Maybe drought will reduce the supply of local catchment water. Maybe pollution in catchment areas may reduce the supply of water from Johor. We do not know what will happen. But what is important is that we now have four taps. Whenever the supply in one tap is being reduced because of whatever reasons, at least we have three other taps to provide the mutual back-up. Sir, in this way, our supply system will not only become more cost-effective but, at the same time, more resilient as we become more self-sufficient in our water supply.