Important European standards for the protection of drinking water have been implemented in Germany's national law by the revision to the Drinking Water Ordinance (TrinkwV). It includes new metrics and lower limit values for pollutants like chromium, arsenic, and lead, as well as the introduction of risk-based drinking water protection. In addition, lead pipes in water systems must be disabled or replaced by the systems' operators.
Bisphenol A, chlorate, chlorite, haloacetic acids, microcystin-LR, and the industrial chemical family per- and polyfluoroalkyl compounds (PFAS) are all being monitored under the new Drinking Water Ordinance. The UBA (Germany's Environmental Agency), recommends a limit of 0.1 g/L for 20 PFAS chemicals across the EU by 2028, with a lower threshold of 0.02 g/L for four substances.