Welcome to Zurich Water Supply
Clean and safe drinking water for everyone
Stadt Zürich Wasserversorgung Tasks of Zurich Water Supply
Supply drinking water and water for fire fighting
– at any time in sufficient quantity – of excellent quality – with sufficient pressure – as cost-efficiently as possible with 280 employees
Stadt Zürich Wasserversorgung Supply Area
Ober- Bachs Rorbas Wiesen- Hoch- Dättlikon weningen felden Bülach dangen Nieder- Neer- Pfungen weningen Schöfflis- Höri Embrach Elsau ach Bachen- Winterthur dorf Nieder- bülach Ober- Elgg Schlei- Steinmaur nikon glatt Winkel Embrach Regens- Lufingen Brütten City of Zurich Boppelsen Oberglatt Schlatt berg Dielsdorf Otelfingen Nieder- Nürens- Buchs hasli Kloten dorf Kyburg Zell Würenlos Bassers- Dän- Rümlang Lindau Turbenthal Hüttikon dorf ikon Regensdorf Dällikon Opfikon- Weisslingen - 400,000 inhabitants Oetwil Glattbrugg Dietlikon Illnau- Wild- Killwangen a.d.L. Effretikon Weiningen Wangen- berg Gerolds- Ober- Wallisellen Spreitenbach Untereng- Brüttisellen wil engstringen Russikon Wila stringen Dietikon Dübendorf Volketswil Sternenberg Schlieren Schwerzen- Bergdietikon Zürich Fehraltorf Bauma Urdorf bach Widen Pfäffikon Rudolfstetten- Uitikon Fällanden Greifen- Hittnau Eggenwil Plus 67 communities Friedlisberg see Uster Berikon Birmensdorf See- Zufikon Wettswil Zollikon Bäretswil Oberwil- gräben Aescha.A. Zumikon Lieli Maur Islisberg Stallikon Kilch- Wetzikon - 510,000 inhabitants Unterlunkhofen Bon- berg Küsnacht Mönch- Arni Adliswil stetten altorf Gossau Oberlunkhofen Rüschli- Erlenbach Hinwil Hedingen kon Jonen Herrliberg Egg Affoltern Thalwil 2 Aeugst a.A. Meilen Grüningen Dürnten Ottenbach a.A. Langnau - 660 km supply area Oberrieden Uetikon Oetwil a.S. a.A. a.S. Bubikon Rüti Obfelden Mettmen- Hausen Männe- a.A. Horgen dorf Hombrechtikon stetten Stäfa Rifferswil Masch- wanden Kappel a.A. Wädenswil Knonau Hirzel Cham Richterswil Stein- Baar Neuheim Schönen- hausen Wollerau berg Hütten Hünenberg Menzingen Zug
Stadt Zürich Wasserversorgung Origin of the water Source
70 % Lakewater Springwaterplant 15 % Springwater Sihlbrugg 15 % Groundwater
Lakewatertreatmentplant Lengg
Lakewatertreatmentplant Moos
Groundwaterplant Hardhof
Stadt Zürich Wasserversorgung Water supply before 1868
Stadt Zürich Wasserversorgung First water distribution 1868
Stadt Zürich Seit Wasserversorgung e 6 Typhus Epidemia 1884
Stadt Zürich pag Wasserversorgung e 7 Insufficient Maintenance
Stadt Zürich Wasserversorgung First Lakewaterplant at Sihlquai 1885
Stadt Zürich Wasserversorgung 1911: Decision to build Lakewatertreatmentplant Moos
Stadt Zürich Seit Wasserversorgung e 10 Lakewater treatment plant Moos
Stadt Zürich 3 *including 20‘000 Springwater) Built: 1914,Wasserversorgung Capacity: 100‘000* m /day Lakewater treatment plant Moos
Stadt Zürich Seit Wasserversorgung e 12 Lakewater treatment plant Lengg
Built: 1960 Expanded:1975, Capacity: 250‘000 m3/day
Stadt Zürich Wasserversorgung Lakewater treatment
Treatment facility Raw water pumping station Raw water intake
30 m
Raw water pipe Pressure pipe 640 m 620 m
Stadt Zürich Wasserversorgung Lakewater treatment Bactereoligical stable water without chlorination Pre-ozonation pH-correction To the reservoirs Rapid sand filtration Slow sand Second ozonation filtration
Lake Zurich BAC Drinking water filtration pumping station Raw water pumping station
Stadt Zürich Wasserversorgung Origin of the water
70 % Lakewater Springwaterplant 15 % Springwater Sihlbrugg 15 % Groundwater
Lakewatertreatmentplant Lengg
Lakewatertreatmentplant Moos
Groundwaterplant Hardhof
Stadt Zürich Wasserversorgung Springs around Zurich
Zürichberg Filter Oetlisberg Schwamendingen 0 1 2 3 4 5 km Filter Hüttenrain Meilen Hütten
Filter Filter Rehalp Filter Dolder Streitholz Zollikon Zürichsee Horgen Affoltern Filter Glaubten Zürich Thalwil Zentrale Sihlbrugg Filter Gubel Seewasserwerk Moos
Wasserschloss Reservoir Entlisberg Wasserschloss Frauental Wasserschloss Chlemmeriboden Ragnau Wasserschloss Eichbach Pumpwerk Kohlboden Filter Dorf Wasserschloss Filter Triemli Filter Gontenbach Leimbach Filter Lyren Üetliberg Baar
160 Springs in Zurich 120 Springs in Sihl- and Lorzetal
Stadt Zürich Wasserversorgung Spring water distribution
The 85 emergency water fountains are included in the 400 spring water fountains and are connected to the 150 km spring water distribution system.
Stadt Zürich Wasserversorgung Origin of the water
70 % Lakewater Springwaterplant 15 % Springwater Sihlbrugg 15 % Groundwater
Lakewatertreatmentplant Lengg
Lakewatertreatmentplant Moos
Groundwaterplant Hardhof
Stadt Zürich Wasserversorgung Groundwaterplant Hardhof
Built: 1934/1973, Theoretical capacity: 150‘000 m3/day
Stadt Zürich Wasserversorgung Groundwater plant Hardhof
Stadt Zürich Seit Wasserversorgung e 21 Technical realisation
SB
ARB1 B SB A ARB2 C VFB ARB3 D
Stadt Zürich VFB Wasserversorgung Water distribution
Maintainance of the system:
1100 km distribution 450 km household 8000 hydrants
Yearly renewal rate of 30km.
Stadt Zürich Wasserversorgung Drinking water is foodstuffs
SELF CONTROL
Stadt Zürich Wasserversorgung The principles of HACCP
raw water
treatment methode machine material human
storage
distribution
domestic installations
Stadt Zürich Wasserversorgung Independent quality control
Director
Public Relations Manager QSE Quality / Security / Environment
Production Quality Control Distribution Finances & Controlling LAB System Operation Chemistry Planning & Accounting Documentation Treatment Plants Trace Elements Controlling Planning Line Construction Maintenance Biology Customer Services
Civil Engineering Building Services Technology IT-Services
Electrical Engineering Fountains
Process Technology Distribution Network
Stadt Zürich Wasserversorgung Quality control
Microbiology-Lab Continuous measuring of (Germs, Bacteria) chemical/physical parameters (pH, turbidity, UV- adsorbance). Limnology-Lab (Algea, Zoo-Plancton) 450 online Sensores
Chemical-Lab (chemical substances, metals) Biosensors: Fish and Micropollutants-Lab Daphnia. (organic substances) 4 Biosensors 1400 Lab parameters 14000 samples / year
Stadt Zürich Wasserversorgung Modern and efficient infrastructure
Stadt Zürich Wasserversorgung Up to date software solutions
Stadt Zürich Wasserversorgung Measured routine parameters 1400 Number of measured parameters 2019
Figure from: Hans-Peter Kaiser, WV Zurich
Stadt Zürich Wasserversorgung Evaluation of the measurements?
25
20 measurable parameters 15 actual Version: May 2017
10 Development 5 assassment criteria
0 Time
Stadt Zürich Wasserversorgung Effect oriented analytics
Biotests (YES, YAS)
Stadt Zürich Wasserversorgung Up to date online analytics
e.g. Online Bacteria Analyzer
Stadt Zürich Wasserversorgung Cost efficient
Director
Public Relations Manager QSE Quality / Security / Environment
Production Quality Control Distribution Finances & Controlling
System~40 Operation Million Chemistry~5 Million Planning & Accounting Documentation~35 Million Treatment Plants Trace Elements Controlling Planning Line Construction Maintenance Biology Customer Services
Civil Engineering Building Services Technology IT-Services
Electrical Engineering Fountains
Process Technology Distribution Network
Stadt Zürich Wasserversorgung Consumption: 160 l / Person per day
Dishwasher 2% 13% Personal hygiene Bath/shower 20%
31% Toilet Washing 19%
Cooking/drinking and dish washing 15% 2 % Others
Stadt Zürich Wasserversorgung Water pricing
Average price per m3 drinking water: approx. 2 Fr. (yearly revenue: approx. 100 Mio.)
1 l drinking water= CHF 0.002 250 × 1 l mineral water = CHF 0.50
Stadt Zürich Wasserversorgung Most environmental friendly beverage
Drinking water 1.41 environmental impact points = approx. 4.5 m by car cooled water from soda machine = approx. 9 m flight in EU Mineral water cooled in gallone Botteled mineral water Cooled beer Cofe from a machine Cooled apple juice Cooled milk 9550 Red wine 500 1‘500 2‘500 3‘000
Stadt Zürich Wasserversorgung 1200 fountains in the city of Zurich
Stadt Zürich Seit Wasserversorgung e 38 Thank you very much for your attention…
Any questions?
Stadt Zürich Wasserversorgung