Pesticides can enter drinking water via agriculture. Metabolites, i.e. degradation products of pesticides, were detected at 70 percent of the monitoring sites. One particularly worrying metabolite is trifluoroacetate (TFA), which was detected at 76 percent of the monitoring sites.

Even in small quantities, pesticides can cause health problems and even have a toxic effect. It's high time to filter your tap water properly. With filbec.