Last year, STEBATEC was allowed to replace the existing process control system and the control software of the water supply system and implement extensive process optimizations. Energie Service Biel/Bienne, Ener-gie Seeland AG and the Seeland Water Supply Association are partners of the Wasserverbund Seeland, which supplies drinking water to around 30 communities and 100,000 people in the Bernese Seeland. This is ground-water that has already been filtered from the permeable Aare gravel underneath the Bernese Seeland to drinking water quality. The groundwater is extracted in five water catchments sunk near Walperswil and pumped into the high reservoir of the Gimmiz water tower. From there it flows in free flow to the pumping stations of the individual water suppliers.