On the occasion of the company’s 30th anniversary, Stebatec could realize another very renowned project. Wasserverbund Seeland AG is a partner plant of Energie Service Biel/Bienne, Energie Seeland AG and Seeland Water Supply SWG and provides a large part of the drinking water supply for around 30 communities in the Bernese Seeland with over 100,000 inhabitants.
The Zermatt WWTP, which was built underground in rock caverns, was completely refurbished, almost doubling its biological treatment capacity. From the mandate of electrical planning and execution, a close cooperation was developed, which today covers the entire measurement and control technology.
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.
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