Equipment

In December 1990, Hanspeter Gafner founded STEBATEC together with two business partners, thus laying the foundation stone of a long success story. With some articles under the title «30 YEARS STEBATEC», we will share our history with you here in the coming weeks.

The Zweckverband der Abwasserregion Olten (ZAO) is an association of 13 municipalities which treat their wastewater in the WWTP Winznau. The WWTP itself was and is already the subject of refurbisching measures, but other structures in the sewer network also showed a considerable need for refurbischment, including pumping stations and storm water tanks.