Overview of Singapore Water Management
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Overview of Singapore Water Management Mr Tay Teck Kiang Deputy Director (Water Supply Network) 1 Country Information Singapore Land Area 710 km2 Population 5.18 mil (Jun 11) Average Annual Rainfall 2,400 mm Average Water Demand 1.73 mil m3/day 2 PUB : Part of Singapore’s MEWR Family To deliver and sustain a clean and healthy environment and water resources for all in Singapore. To ensure a sustainable quality To ensure an efficient, adequate and environment in Singapore sustainable supply of water Clean Land Water Supply Clean Air Used Water Public Health Drainage 3 Background of PUB Early Days of Singapore 1950s -Population = 1m, Demand = 142,000m3/d Scarce water resources Poor living condition Water Bill Payment 4 5 The Water Loop From sourcing, collection, purification and supply of drinking water, to treatment of used water and turning it into NEWater, drainage of storm water treatment stormwater rain sea of management used water reclamation of used water collection desalination collection of rainfall of used water in drains & in sewers reservoirs supply of treatment of water to the raw to potable population & water industries 6 Ensuring Water Sustainability for Singapore 4 National Taps 3P Approach Local catchment “Conserve Water” Imported water “Value Our Water” NEWater Desalinated water “Enjoy Our Waters” “Water for All” “Conserve, Value, Enjoy” 7 Integrating the Water Loop : Water for All 8 First National Tap Local Catchments : Harvesting Every Drop MacRitchie Reservoir Protected Catchment Punggol Unprotected Urban Catchment Stormwater Marina Reservoir Collection System Legend Unprotected Water Catchment Protected Water Catchment Recently Completed Punggol Serangoon Reservoir o Punggol-Serangoon Reservoirs and Marina Reservoir completed o Catchment area increased to two thirds in 2011 o Potential to reach 90% in future with R&D 9 Local Catchments: Marina Barrage Creating a reservoir in the city • Urban catchment - 1/6 of Singapore • 3-in-1 function: water storage, flood control, lifestyle attraction • Officially opened by the Prime Minister on 31st Oct 08 • > One million visitors to date 10 Second National Tap Imported Water from Johor • Two water agreements with Johor, Malaysia o1961 to 2011 o1962 to 2061 11 Third National Tap NEWater •Kranji •Bedok •Ulu Pandan NEWater Plant by Keppel Seghers – DBOO •Sembcorp NEWater Plant - DBOO NEWater capacity currently meets 30% of Singapore’s water needs and will increase to 50% by 2060 12 Fourth National Tap Desalinated Water SingSpring Desalination Plant Officially opened by PM Lee on 13 Sep 2005 136,000 m3 per day 20 year DBOO plant by SingSpring Pte Ltd, a Hyflux subsidiary 13 Ensuring Water Sustainability for Singapore 4 National Taps 3P3P ApproachApproach Local catchment “Conserve“Conserve Water”Water” Imported water “Value“Value OurOur Water”Water” NEWater Desalinated water “Enjoy“Enjoy OurOur Waters”Waters” “Water for All” “Conserve,“Conserve, Value,Value, Enjoy”Enjoy” 14 Water Demand Management UFW Control Water Conservation Good Quality Network & Accurate Efficient Management Pricing Metering Reflect the strategic importance and scarcity value of water Good Customer Customer Leakage Water Relationship Control Management Service – Reliability Conservation & Strategy Mandatory Quality Facilitation Strict 3P approach Cut down on excessive Legislation OUTCOME Funding flow and wastage of Low UFW Promote ownership of water 12.0 water conservation 10.6 Per Capita Domestic Consumption (1998-2011) 170 10.0 9.5 166 UFW < 5% 165 165 165 165 165 7.7 8.0 165 6.7 6.4 6.2 162 6.0 5.9 160 6.0 5.2 5.3 5.2 ~ 5 4.9 5.1 4.8 5.0 4.96 4.7 4.7 4.5 4.4 4.4 4.6 160 158 157 156 4.0 155 154 (lit/person/day) 155 153 2.0 % OF TOTAL % OUTPUT 150 2005 1998 1999 2000 2001 2002 2003 2004 2006 2007 2008 2009 2010 2011 Per Capita Domestic Consumption Consumption Domestic Capita Per 0.0 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 15 Overview of Water Supply System Pipelines 16 Integrated Network Management System Good Quality Network & Efficient Management Leakage Control Strict Legislation Good Customer Service – Customer Reliability & Relationship Quality Management Accurate Metering OUTCOME Low UFW 17 Good Quality Network & Efficient Management New Network • Good planning & design – sizing of pipes, location of valves, alternate supplies, etc •Strict supervision & control on workmanship • Use Good quality / corrosion resistant material – Connections : Copper – Mains (100 – 300 mm) : cement-lined DI – ( ≥ 700 mm) : cement-lined steel Existing network • Servicing and maintenance of valves / hydrants • Mains Renewal Programme - Unlined CI mains and GI connections (in 80s / 90s) - Old problematic CI Mains (2000 – 2004) - Asbestos Cement Mains (2003 – 2008) • Ongoing pipe replacement programme 18 Active Leakage Control Dynamic Leak Detection Programme – Divide Singapore into ~ 300 zones – Frequency of checks based on age/material type of mains & leak history – Use of advanced leak detection equipt including leak localisers – Cover 10 – 20 km length of pipes / day Dry weather flow by other PUB in charge of drains and waterways 19 Accurate Metering 100 % metering for usage and billing Type of meters in use • Electromagnetic meters at waterworks • Class C volumetric meters at households Electromagnetic meter Domestic Meter • Compound meters to capture both low and high flows in non-domestic premises 15 mm meter (Replace every 15 yrs or > 4,000 m3) Compound meter Compound Meter (Replace every 2-7 yrs) 20 Customer Relationships Management •Quick Response to Public Reports – 24 x 7 Contact / Operations Centre: PUB – One WSOC PUB-One •One-stop contact centre for Board’s services •Customers can contact us thru: Telephone, Email, Fax, SMS, VoIP, WebChat WSOC (Water Service & Operations Centre) •Quick response service van crew 21 Strict Legislation – Deter Illegal Draw-Offs • Very Few Cases • Strict Enforcement • Public Utilities Act • Prosecution in court - Max Penalties: - $50,000 fine or; - 3 years jail term or; - both fine & jail term 22 UFW - Sustainable Work Processes Involving Everyone PRV N Effective Management, Staffing & Training PRV Yishun Ave 5 Yishun Park PRV Planning & Design Mainlaying Network Network Optimisation - Proper positioning of valves management - Optimise system - Optimise network design - Use good quality pipes - Maintenance of pressure - Good worksmanship network - Reduce likelihood of - Replace old/leaking leaks mains -Proper Records - AIMS Enforcement Leakage Control - high penalty Proper accounting through Metering - Dynamic leak detection - very few cases - use good quality and accurate meters - Size meters according to usage - 24/7 contact centre 23 3-Prong Water Conservation Strategy Pricing Reflect the strategic importance and scarcity value of water Water Conservation Strategy Facilitation Mandatory 3P approach Cut down on excessive flow and wastage of Funding water Promote ownership of water conservation 24 Conserve: Pricing • Volume-based billing • Regulated by Ministry (Environment & Water Resources) Potable Water Used Water Tariff Consumption block Tariff WCT1 Total WBF2 SAF3 category (m3 per mth) (¢/m3) (%) (¢/m3) (¢/m3) (¢/appliance) Domestic 1 to 40 117 30 152 30 300 Above 40 140 45 203 30 300 Non-domestic All units 117 30 152 60 300 1: Water Conservation Tax – Tax on consumption to reinforce the water conservation message 2: Waterborne Fee – Volume-based used water fee 3: Sanitary Appliance Fee – Fixed used water fee based on the number of sanitary appliances 25 Conserve Domestic Shower taps & Basin taps & Sink / Bib taps & mixers mixers mixers Enhanced Water Efficient Homes Dual flush low Urinals & urinal capacity flushing flush valves Water Volunteer Water cisterns Groups (WVGs) Installation of Efficiency Dual Flush Labeling LCFCs Scheme (Mandatory from (Mandatory from July 2009) July 2009) Website Portal 26 Water Conservation Framework for Non Domestic Sector Non-Domestic Mandatory Pricing Sector Requirements Reduce Replace Reuse NEWater /seawater/ Water Efficient rainwater / Building Promote Recycling Technology – air cool, MWELS waterless urinal, etc 27 Conserve Non-Domestic: 10% Challenge • To challenge the non-domestic sector, particularly the hotels, schools, commercial buildings, government office buildings, etc, to work towards becoming a WEB and save 10% of their monthly water consumption. Water Efficient 10% Challenge Water Efficiency Water Efficiency Building Design Website portal Manager Course Management Plan Guide Water Efficient Building (WEB) To-date, more than 2,300 buildings/premises are certified as Water Efficient Buildings 28 The Blue Map of Singapore 29 ABC Waters Programme Launched in 2006, ABC Waters Programme is about: A. ACTIVE New recreational spaces B. BEAUTIFUL Integration of waters with urban landscape C. CLEAN Improved water quality Cultivating environmental responsibility among people “… Turn Singapore into a city of gardens and water” Prime Minister Lee Hsien Loong, At ABC Waters Public Exhibition Opening (Feb 07) 30 Completed ABC Waters project – Kolam Ayer Waterfront New features include floating platform for performances and educational interactive water features Before Completed in Apr 2008 31 Completed ABC Waters project – Bedok Reservoir Completed in June 2008 Before New Features: • Landscaping along the banks • Floating deck with performance stage and fishing deck • Viewing Galleries on reservoir banks 32 Completed ABC Waters project – Pandan