Facts about Graz • Graz isthesecondlargestcity in Austria • 127,56 km² • 17 districts • 265.000 inhabitants (Jan. 2012) • 35.000 students • 70.000 commuters
Our company With the establishment of the Holding Graz GmbH, the Group now unites all major municipal services under one roof and thus offers its customers one-stop service. The new roof is supported by three strong main business fields: • Business Management/Shareholdings • Public Transport/Energy • Services (municipal)
Our potential for success lies in the core business: • public urban transport with the Holding Graz Linien and • water management (drinking water and sanitation) • waste management • public space (street- & green space maintenance) • free time (public baths, recreation areas: Schöckl, Schloßberg, Hilmteich, Rosenhain) • funeral services, the market leader in Styria
Holding Graz Services The business field Holding Graz Services comprises the divisions “water services” (drinking water supply and waste water disposal), “waste management” and “public space” (street & green space maintenance). Its remit extends to 1.320 kilometer water pipe network, 846 kilometer channel network, 950 km streets, paths and places, 2.350.000 m² park- and recreation areas as well as 34.000 properties and public garbage collections. Wearethefourthlargestwatersupplycompany in Austria. Ourwatersuppliedareaisabout 110 km².
Water procurement Graz draws its water exclusively from the groundwater of the quaternary gravels in the River Mur Valley. Graz has a water demand of about 19 million cubic meters per year. To be able to meet these requirements there are 3 waterworkfacilities: • Friesach, about 12 km north of Graz • Andritz • Waterworks St. Ilgen, the central water supply called HochschwabSüdGmbH (ZWHS), 60 km north of Graz For emergencies and accidents there are the waterworks of Feldkirchen as well as the water board UmlandGraz available.
Main tasksofwaterservices • Maintenance • Quality management • Cut-and-cover linebuilding Storage ofwater • Storage capacity in 23 reservoirs: 36.000 m³ • 70 % oftheaveragedailydemand • High storagecapacity in theunderground Groundwatermanagement • Regulation andmanagementofthegroundwaterfieldsbyartificialgroundwater recharge
Quality ofdrinkingwater • nopreparation • nodesinfection • notreatment absolute natural • Degreeofhardness16°dH (2,8 mmol) • Nitrate 5 – 10 mg/l • Pesticideunverifiable • Ownauthorifiedwaterlaboratoryforwaterqualitymanagement