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In Europe, a stable and reliable food supply has become normal over recent decades. This has beenachieved in many cases by the use of pesticides to control pests, weeds, and diseases, plus fertilisers tosupply additional nutrients. Pesticides play an important role in the food production process, maintainingor enhancing crop yields and protecting quality in both conventional and organic arable farming. However,they can also lead to harmful effects in the environment, including aquatic ecosystems and risks to humanhealth. There is now widespread concern about the addition of a substance to the environment, designedto be toxic to part of the ecosystem.European policies aimed at reducing the potential risk from pesticides are supported by the Plants ProtectionProducts Regulation (EU, 2009), the Sustainable Use of Pesticides Directive (EU, 2009) and the BiocidalProducts Regulation (EU, 2012). The Water Framework Directive (WFD) (EU, 2000) and its daughter directiveshelp to protect water quality from pesticide pollution. There is, however, little evidence to show whetherthis legislation has been effective, mainly because of limited data on the actual risk from pesticides in surfacewaters and groundwater at the European level (EEA, 2018a). Addressing this gap is of high interest for policy,practitioners, and the public because of the risks pesticides present to both the environment and humanhealth. Most recently, the Green Deal and its associated strategies and actions include the Biodiversity andFarm to Fork Strategies, which aim to reduce by 50 % the use and risk of pesticides by 2030 (EC, 2019b; EC,2020a, 2020b).This technical report provides an overview of the available information on pesticides in surface waters andgroundwater in EEA countries. Its main output is a comprehensive summary of the data on pesticides insurface waters and groundwater reported through WISE-SoE reporting to EEA1, over the period 2007 to 2017.The EEA’s Waterbase – Water Quality database conta

This ETC/ICM Technical Report presents an overview of data flows on emissions to water under different European reporting obligations: State of Environment reporting on emissions to water (SoE emissions), European Pollutant Release and Transfer Register (E-PRTR), Urban Waste Water Treatment Directive (UWWTD), OECD/Eurostat Joint Questionnaire on inland waters, and Water Framework Directive (WFD). Comparative analyses are done to show similarities and differences between these reporting obligations on emissions of nutrients and hazardous substances to water. Similarities, differences and completeness of the load data reported by each European Member State under the different reporting obligations are visualized in tables, diagrams and maps. The aim of this analysis is to facilitate streamlining of reporting following the vision ‘Report once - use many times’. This report should be a basis for further discussions and developments on streamlining and improving the data flows on emissions to water at the European level.