That is finally much closer to the reported average value of 3 % in the IDEA database. Compared to these technical water inputs, only a minor share (about 0.2 %) of water is modeled to be treated in a wastewater treatment plant, because the revised v3 proxy approach of ecoinvent neglects the internal wastewater treatment plant at the Gendorf site. Adding the internally treated wastewater would increase the treated water to about 65 % of the technical water demands and would lead to additional impacts associated with wastewater treatment (e.g. due to chemical demands or energy demands).