15. 在几乎整个 10 年期间，联合国水机制一直是与“十年”有关的活动的总协调员，利用其方案、项目、成员和合作伙伴来执行“十年”的活动。联合国水机制是联合国系统各机构和外部利益攸关方合作伙伴的协调机制。联合国水机制是秘书长在 2003 年设立的，最初由联合国各组织的高级方案管理人员组成，随后选举其中一人担任主席。大会日益依赖联合国水机制围绕水问题进行协调和提供技术咨询，联合国水机制的作用越来越重要。2011 年，主席职位提升为联合国实体行政首长级别，这反过来在“十年”后半部分促使会员国提供了更好的支持。联合国水机制协助开展了一系列旨在落实“十年”的活动和行动，帮助促进实现“十年”的目标，并在世界范围内实现可持续水管理方面取得进一步进展。关于这些活动的深入看法载于下文第七节。
15. UN-Water was the overall coordinator of activities related to the Decade over nearly the entirety of its 10-year duration, utilizing its programmes, projects, members and partners to implement the Decade. UN-Water is a coordinating mechanism for United Nations system bodies and external stakeholder partners. Created by the Secretary-General in 2003, UN-Water was originally composed of senior programme managers in United Nations organizations who then elected one of their peers to serve as Chair. With the General Assembly relying increasingly on UN-Water for coordination and technical advice centred around water issues, the role of UN-Water became increasingly relevant. In 2011, the position of Chair was elevated to that of chief executive of a United Nations entity, which in turn enabled improved support of Member States during the latter part of the Decade. UN-Water facilitated a series of activities and actions aimed at implementing the Decade which helped foster achievement of the goals of the Decade and further progress on achieving sustainable water management worldwide. A more in-depth perspective on these activities can be found in section VII below.