This document discusses governing risks in implementing water-related SDGs. It presents different frameworks for conceptualizing and responding to risk, including adaptive governance, adaptive co-management, and anticipatory governance. It also discusses legal pluralism in water governance and how different types of legal pluralism problems require different solutions. Specifically, it examines issues around the human right to water and sanitation at international and local levels, as well as indigenous people's rights. A key conclusion is that implementing water SDGs is challenging due to significant existing legal pluralism around water and different stakeholder perspectives on risk framing.