On/Off-line Real-Time Tap Water Quality Opening Service

Transcription

1 On/Off-line Real-Time Tap Water Quality Opening Service UN Public Service Award : Winner Arisu June Office Of Waterworks, Seoul Metropolitan Government, South Korea

2 Index 1.Organization 2.General Status 3.On-line Seoul Water-Now (SWN) System 4.Off-line Arisu Quality Verification System 5.Results 1

3 Mayor Organization of Seoul Waterworks Vice Mayor Assistant Mayor Director General Population in Seoul : 10.3 Millions Seoul Metropolitan Area(Seoul, Incheon, Gyeonggido) : 24 Millions South Korea : 49.5Millions Management& Administration Division Water Production Division Water Supply Division Facility Maintenance Division Affiliates(1 6) Research Institute Employees : Water Supply Offices(8) Water Purification Plants(6) Equipment Management Center 2,291 (June, 2009) Office Staffs Researcher Specific Technical Contract s Staffs Staffs Workers 1, ,

4 General Status Population Served : millions Production Capacity : 5.1million 5 tons/day (6 Purification Plants) - Daily Water Supply : million tons/day - Revenue Water Rate(2008) : 91.8% Length of Pipelines Distribution Reservoirs Booster Stations Water Meters 13,943 km 106 (2.35 million tons) million 3

5 Vision of Seoul Waterworks Clean and Attractive Global City, Seoul the World s Best Tap Water Quality the World s s Highest Revenue Water Rate the Best Customer Service High Quality Tap Water Moving intakes to the upstream Advanced water treatment Stabilized Supply 24 hour supply system Expansion of reservoirs Improvement of Management Increasing revenue water rate Bettering of Citizens Trust Seoul water-now Arisu quality verification 4

6 Current Issues Tap Water Quality -Test 155 items recommended by WHO -Satisfied with standards Turbidity : 0.05NTU Particle Counts : 24/mL Citizens Evaluation However, low rate of tap water drinking Increase of bottled water & water purifiers The world-best level Increase of household economic burden 5

7 Measures to Drink Tap Water To Increase Trust in Tap Water through the best customer service Tap Water Quality Opening Service On Line Seoul Water-Now Off Line Arisu Quality Verification System 6

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9 Seoul Water-Now System Headquarter of Waterworks Consumer Internet Service/Ministry of Environment Internet Waterworks DB Raw W`ater Treated Water Consumers Pumping Taps Station Reservoirs Water Treatment Plants Water Supply Offices Waterworks Research Ins. 8

10 Status of SWN Seoul Water-Now System - Items measured: 5 (turbidity, ph, residual chlorine, temperature, electric conductivity ) - Sites measured : 99 (6 intake stations, 6 water purification plants, and 39 reservoirs and 48 taps) Real-time Water Quality Opening Service through Internet - Link to the Office of Waterworks Homepage ( K f t l it (Y h N ) 9

11 Internet Homepage 10

12 What is AQVS (Arisu Quality Verification System)? Visit each household to to inspect tap water quality & Implement total consulting Water Quality Testing Analyzing & Consulting 11

13 AQVS S Diagram Water Supply Offices(8) Visiting Household 1 st Water Quality Test Failur e 2 nd Water Quality Test Pas s Notice before Test Issuing Certificate Sticker Transfer to Direct System without Tank Retrofitting/Replacing Indoor Water Pipes 12

14 Target of Tap Water Test Number of Household (thou.) Total , ,000 13

15 Water Quality Test & Criteria ph Residual Chlorine Iron 1 st Test (5 items) Turbidity Copper Indoor Pipes/ Tanks Pass Pass Issuing Certificate Sticker Failure Failure Second Test (7 items) 14

16 Second Test in case of Failure Indoor Pipes Replacement Ammonia Nitrogen Transfer to Direct Supply System Chloride ion Manganese 2 nd Test (7 Items) Zinc Fecal Coliform E. Coli Total Coliforms Consulting for Test Results Water Tank Maintenance 15

17 Support for Replacement of Indoor Water Pipes Objects - Independent Residence : Less than 165m2 - Community Houses (Apartment, etc.) : Less than 85m2 Amount of Supporting Cost : 50% out of total cost, Up to $1,200 Total Support : Low Income Households and Social Welfare Supported Houses, etc. 16

18 CS(Customer Satisfaction) Survey 120 Dasan Happy-Call Center Reviewing of the Survey Results Select 3% out of the total inspected houses Telephone Interview (Survey) (Feedback) Analyzing Problems Reeducate Inspectors (Tester) Meet the Citizens Demand 17

19 Results Real-time monitoring water quality in in source water, purification plants, faucets etc. Clearing out citizens' dissatisfaction & suspicion for water quality Reducing cost of of water purifiers and bottled water 76 percent out of the total become to drink tap water after AQVS. 18

20 Fertilized Egg Hatching Unfertilized Egg Rotten 19

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