| This study delves into the multifaceted significance of the Iloilo–Batiano River System, highlighting its ecological importance, economic contributions, and persistent challenges related to water quality and pollution. Despite progress made by the Iloilo–Batiano River Development Council, issues such as poor water quality, solid waste accumulation, and inadequate sewage management continue to jeopardize public health and the river’s ecosystem. The research emphasizes the crucial roles of various stakeholders, including water providers, local government units, nongovernment organizations, and community members, in addressing these challenges through collaborative governance and sustainable practices. Effective regulatory frameworks and public-private partnerships are also underscored as essential for ensuring long-term river management and rehabilitation efforts. Key findings highlight the need for sustained commitment to enhancing the health of the Iloilo–Batiano River System, balancing urban development and environmental sustainability. Compliance with existing laws and regulations, such as the Clean Water Act and the Iloilo City Septage Management Program, is crucial. Lessons learned from septage management initiatives in other local government units are also discussed. Recommendations include revitalizing the Iloilo–Batiano River Development Council’s role in promoting the river’s conservation and sustainability |