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.