Yokohama Waterworks Bureau

Transcription

1 Yokohama Waterworks Bureau

2 Contents 1.Water Supply in Japan 2.Water Supply in Yokohama 3.Challenges and Future Vision

3 1-1 Water Supply in JAPAN Inclination pitch of Rivers 3

4 1-2 Water Supply in JAPAN Water Resource for Supply Deep well 12.8% Others 2.7% shallow well 6.9% River-bed 3.7% Lake 1.3% Annual intake billion m 3 Dam 47.2% River 25.4% As of 31.March,

5 1-3 Water Supply in JAPAN Administration National Government Ministries related to water in 11 ministries Water supply: Ministry of Health, Labour and Welfare Water Environment: Ministry of Environment River Control, Water Resource: Ministry of Land, Infrastructure and Transport Industrial water: Ministry of Economy, Trade and Industry Agricultural water: Ministry of Agriculture, Forestry and Fishery Sewerage system: Ministry of Land, Infrastructure and Transport Prefecture 47 prefectures Cities, Towns and Villages 1,727 communities(as of March 31, 2010) Local Government 5

6 1-4 Water Supply in JAPAN Regulations National Government Ministries related to water in 11 ministries Water supply: Ministry of Health, Labour and Welfare Waterworks Environment: Act Ministry (enacted of Environment in 1957) River Ministerial Control, Ordinance Water Resource: (technical Ministry standards of Land, etc.) Infrastructure other decrees, regulations, ordersand Transport Industrial water: Ministry of Economy, Trade and Industry Local Public Enterprise Act :Ministry of Internal Affairs and Agricultural water: Ministry of Agriculture, Forestry Communications and Fishery Sewerage system: Ministry of Land, Infrastructure and Transport Prefecture 47 prefectures Cities, Towns and Villages 1,727 communities(as of March 31, 2010) Local Government Ordinances Local Government 6

7 1-5 Water Supply in JAPAN History of these130years Urban area 1887 Foundation of 1 st modern water supply system in Yokohama 1945 World War II Rural area <reconstruction> 1952 Nangkai Great Earthquake and subsidy for the area Development of stimulated urban peripheral water supply systems 1957 Japan Finance Corporation for Municipal Enterprises was established to support to issue local bonds 1950 s : Quality of Life Improvement Movement Exemption of strict Accounting principal apply of self supporting Launching many small scale public water supply systems

8 1-6 Water Supply in JAPAN System & stakeholders National Government Ministry of Health, Labour & Welfare Ministry of Internal Affairs & Communication JWWA Local Government Local assembly Subsidy Approval of Tariff Water Utilities as PUBLIC ENTERPRISE Approval of bond

9 1-7 Water Supply in JAPAN JWWA-1 Organization General Assembly President 7 Vice-President Executive Director 7 Regional Branches Audit Board (2 auditors) Board of Directors (13 directors) Standing Executive Board 46 Prefectural Branches 1,355 Corporate Members 395 Individual Members 563 Associate Members Committee Committee Committee Committee Committee Secretary General General Affairs Dept. Research Dept. Training & International Dept. Engineering Dept. Inspection Dept. Osaka Regional Office Water Works Engineering General Institute Quality Certification Center As of Dec, 2016

10 1-8 Water Supply in JAPAN JWWA-2 Activities 1 Nation-wide collaboration on water supply issues Annual conference and symposium, Approach to obtain government budget allocation, etc. Research Activities on Water Supply Management/ technologies Standardizations of water supply equipment and materials etc. International Activities Training

11 1-9 Water Supply in JAPAN JWWA-2 Activities 2 The Inspection Service Publications The Certification Service

12 2-1 Water Supply in YOKOHAMA Location of Yokohama Japan Tokyo Metropolitan 25km 0km 500km 1,000km Kanagawa Prefecture 30km Yokohama JICA Tokyo Bay Sagami Bay Shizuoka Prefecture Pacific Ocean

13 2-2 Water Supply in YOKOHAMA Water Resource Mt. Fuji A view from Doshi Village to Mt. Fuji Doshi Yokohama

14 2-3 Water Supply in YOKOHAMA Predawn of Modern Water Works THE FAR EAST 1. August, 1870 Wooden channel Water Vendor, (Supplying spring water from suburbs)

15 2-4 Water Supply in YOKOHAMA 1887~ Modern Water Works Water supply area in 1887 Yokohama got 1.26 m. gallon (5,720 m3 ) of water per day for 70,000 users Head Office China Town Hydrant: 629 Domestic tap: 1,068 households Common tap: 143 for 6,606 households As of the end of 1887 H. S. Palmer Common Tap at that time

16 2-5 Water Supply in YOKOHAMA 1887~ Expansion of the City Yokohama became a city in 1889, and expanded into 75 times larger area municipality in 50 years Area 5.40 km km km km km km km 2 Legend , , , , , , 1939 Reclaimed

17 2-6 Water Supply in YOKOHAMA Amount of water resource (mil m3 / day) Founding period beyond 8 times Expansion Project Amount of Maximum Daily Water Supply 2nd Expansion rd Expansion th Expansion th Expansion th Expansion th Expansion th Expansion Sagami River (Development with other waterworks) Sakawa River (Development with other Banyu River Maintenance period Current permitted water volume 1,955,700 m3 /day Sagami River (Development with other waterworks) Banyu River st Expansion Sagami Lake Fouding period Doshi Rever M M M T S S S S S S S H H19

18 2-7 Water Supply in YOKOHAMA Yamanashi Prefecture Doshi Dam Doshi River Doshi Office Sagami Dam Numamoto In. Shiroyama Dam Aoyama S.R. Doshi Discharge Channel Abiko In. Tsukui Discharge Channel Miyagase Dam Sagamihara PP P Sagamihara S.R. Tokyo Metropolis Nishinagasawa PP Kawai PP Nishiya PP Mt. Fuji Distribution Reservoir Sedimentation Reservoir Intake Weir Dam Purification Plant 18 Miho Dam Sakawa River Kanagawa Prefecture P Samukawa In. P P Sagami River Ayase PP Doshi River line P Kosuzume PP Sagami Reservoir line Banyu River line Sakawa River line Sagami River line YOKOHAMA 3,750,000 1,800,000m3/d 479L/c/d

19 2-8 Water Supply in YOKOHAMA Basic Information of YWWB Start of service 17/Oct/1887 (130Ys ago) Served population 3,726,317 (F.Y.2015) Connections 1,824,383 (F.Y.2015) Service rate % (Since 1988) Pipelines length 9,250.6 km (F.Y.2015) Fee collection rate 99.9 % (F.Y.2015) Leakage (NRW) rate 5.6(8.2) % (F.Y.2016) Daily supply (average) 1,127,804 m3 (F.Y.2015)

20 2-9 Water Supply in YOKOHAMA 18 Ward Treatment Plants Kawai 6 Nishiya Kosuzume Distribution Management Office North South Bukko Imai 14 Kosuzume 15 Takatsuka Aoba 7 Distribution System Tsuzuki 2 Kohoku 8 3 Ka Midori N Tsurumi Asahi 5 4 Kanagawa 16 Ni 9 Seya Nishi Hodogaya 10 HQ S 11 Minami Naka Izumi Konan 21 Totsuka 18 Isogo Ko Sakae Kanazawa 1 Reservoirs 1 Ushikubo 2 Kohoku 3 Tsurumi 4 Tsurugamine 5 Sugeta 6 Kawai 7 Onda 8 Miho 9 Nishiya 10 Nogeyama 11 Heiraku 16 Yasashi 20 Mine 17 Nakao 21 Isogo 18 Kaminagaya 22 Kanazawa 19 Konandai

21 Water Supply in YOKOHAMA Block System Distribution Large Block (25) Distribution Reservoir Middle Block (37) Pumping (22) Gravity flow (15)

22 2-11 Water Supply in YOKOHAMA Facility Control Systems SCADA Mapping System Forecast of water suspension Kawai Nishiya Pipeline network analysis WTP Reservoir Pumping Station Kosuzume Intake Office, etc

23 2-12 Water Supply in YOKOHAMA Customer Administration System Internet Call Center Telephone Call Reception system Public server (Web service) Credit Card Cooperation Convenience Store Cooperation Log management YWWB s Office Handy Terminal Meter Reading System Pricing System Disk array Print Center Forms management CMT

24 2-13 Water Supply in YOKOHAMA History of Pipe Installation DN75 &over Cast Iron Pipe (CIP) Steel Pipe (SP / SUS) Asbestos Cement Pipe (ACP) Ductile Iron Pipe (DIP) DN50 &less Galvanized Steel Pipe (GP) 1971 Lead Pipe (LP) Vinyl Pipe (VP) Polyethylene Pipe (PEP) Vinyl Lining Galvanized Steel Pipe (VLGP) 1971 Epoxy Coated Galvanized Pipe (ECGP) Polyethylene Lining Galvanized Pipe (PLGP) 1984 New Polyethylene Pipe (PP) 2004 Stainless Steel Pipe (SUS) (Year)

25 2-14 Water Supply in YOKOHAMA Organization Structure 3,000 2,000 1,000 2,555 Director General ,362 (year) Improve Efficiency of Business Outsourcing Reemployment of Retiree Technical Administrator General Affairs Business Management Business Promotion Water Supply Service Water Distribution Water Purification Facilities 1,332 staffs as of 31.Mar, 2017

26 2-15 Water Supply in YOKOHAMA Production Cost Personnel Cost 25 yen (15%) Others 16 yen (10%) Depreciation Cost 52 yen (32%) Operation & Maintenance Cost 32 yen (19%) Cost for Bulk Water Supply 40 yen (24%) Total Cost 165 yen/m 3 Other cities (yen) Tokyo: 197 Nagoya: 157 Kyoto: 146 Osaka: 137 Kobe: 184 As of 31.March, 2017

27 2-16 Water Supply in YOKOHAMA Human Resource Management personnel reassignment based on evaluation & career path Reflection at career shaping interview Reflection at merit rating Setting development goals by merit rating system Awareness of capability development level using goal sharing sheet Human Resource Development Spiral -evaluation -personnel reassignment -setting a bit challenging goal Capability development toward a goal OJT, Off-JT, Self-Development Reflected in promotion, etc. Capability realization through performing tasks

28 2-17 Water Supply in YOKOHAMA Sustained Endless Effort

29 3-1 Challenges & Future Vision Future Demand Forecast (x 10,000m 3 /day) ( 万m3 / 日 ) 平成 年度 1.33mil.m 133 万m3 3 //day 日 Peak 水需要のピーク Demand 平成 年度 1.14mil.m 114 万m3 / 3 日 /day 2035(Estimation) 平成 47 年度予測 97 万m3 / 日 0.97mil.m 3 /day 20 Actual record 実績 Estimation 予測 S S S S S62 H H H H23 H H H H

30 3-2 Challenges & Future Vision Revenue of these years Trillion Yen 80 ( 億円 ) H H H H H H26

31 3-3 Challenges & Future Vision Installation/Renewal of pipes Installed length 延長 (km) (km) ,400km Now, we are facing the time limit to replace pipelines which are installed during this period 年代不明 M34 S30 S35 S40 S45 S50 S55 S60 H1 H5 H10 H15 H20 H24 H27 Unknown Year of Pipeline Installation 送配水管の年度別布設延長 年度

32 3-4 Challenges & Future Vision Our Future Vision Ver.2016 YWWB provides future vision for each 5 areas to help customers and stakeholders of those areas.

33 3-5 Challenges & Future Vision Environmentally Friendly Water Supply Environmental load shall be reduced in the process of treatment from water source to water tap, that needs a lot of electric power. 1 Energy Efficient waterworks - Extending gravity flow systems - Promoting renewable energy application Hydro energy Sedimentation basin Generator to PP etc. 2 Maintenance of water sources and environmental protection by public and private partnership - Public relation by using official bottled water Hamakko-doshi The Water - Maintenance water source forest with citizens volunteer Hamakko-doshi The and so on. Water Volunteer activity

34 3-6 Challenges & Future Vision - Established by YWWB on July 1, Capital: 100 million yen (wholly funded by YWWB) - Making use of YWWB s technology and know-how accumulated for 129 years - Contribution to water supply and sewerage utilities in home and overseas

35 3-7 Challenges & Future Vision Yokohama Water Business Association Public-Private Alliance Offering Solutions to Water-related Issues 164

36 3-8 Challenges & Future Vision Y-PORT Center Yokohama Urban Smart Solution Establishing a knowledge hub for smart city management

37 3-9 Challenges & Future Vision We can share future vision of water 130 th Anniversary 2017 Foundation 1887

38 Thank you for your attention