In this episode of Monitoring SDG Goal 6: Role of City and Country Systems along with Citizens, Dr. Mehta and Mondardini talk about monitoring SDG 6 and local and country systems for data collection for water and sanitation. They also discuss a case study and data collection methods, data sharing policy for SDG, other global case studies, and best practices of using citizen data for water and sanitation. The two speakers also talk about the role of the city and national government in monitoring WASH at scale, and the role of Niti Aayog in India. Citizens' science is also an important element of the conversation as it makes the system very transparent and it’s very effective in terms of knowledge and education. Citizens can perform data collection, sampling, and ground-truthing which also gives a sense of ownership to the citizens. Dr. Meera Mehta is a Professor Emeritus at CEPT University and has 30 years of experience in water, urban development and infrastructure finance. She served as the Director of School of Planning at the University in 1992, before joining the USAID’s FIRE Project in India, and later the World Bank and its Water and Sanitation Program in Africa. In 2008, she spearheaded the Performance Assessment System (PAS) at CEPT University. The action research project supported by the Bill and Melinda Gates Foundation focused on developing robust methods and processes for performance assessment and improvement of urban water supply and sanitation in India. Meera is the Joint Executive Director of the Center for Water and Sanitation and serves as the Joint Project Director for 4 projects funded by the Bill and Melinda Gates Foundation in India. She is on the board of the Stockholm-based inter- governmental organization Global Water Partnership (GWP) and IRC, a global not-for-profit organization driving resilient WASH systems across the world through research and advocacy. She was a member of the working group for the WHO-UNICEF post-2015 deliberations for water supply and sanitation. She has studied Architecture and Urban Planning and has a Ph.D. in Economics.Maria Rosa (Rosy) Mondardini is the Managing Director of the Citizen Science Center Zurich, a joint effort of the University of Zurich and ETH. The Center supports Citizen Science projects at both institutions, in Switzerland, and beyond. She was previously co-director at the Citizen Cyberlab in Geneva, a partnership between CERN, UNITAR, and the UniGe focused on developing new forms of public participation in research. From 2008 to 2015 Rosy has been working at the WEF as Associate Director, managing the YGL Alumni community.