The article is devoted to the research of the Forsyth method for priority areas in the field of supply, water treatment, water use and integrated water resources management to achieve Sustainable Development Goal 6 “Clean water and proper sanitation” in order to include them in the future list of priorities of scientific and technological development. Foresight-forecast research on the definition of priority areas was carried out in the context of national tasks of SDG 6 in three stages using a comprehensive method, which includes expert panels, scientometric and patent methods according to the developed methodology. The study involved experts, scientists and practitioners (mostly from the field of entrepreneurship), who submitted proposals and made expert assessments. Technological directions were determined with the help of the patent database Derwent Innovations, non-technological — according to the database of scientific publications Web of Science. According to the generalized results of the assessment of three stages and after clustering of all areas of research and technology according to this assessment (according to methodical recommendations) from the 24 technologies proposed by experts for four (6.1–6.4) national tasks of SDG 6 priority for inclusion in the future list of priorities. 12 directions of development on three (6.1–6.3) national tasks are offered.