Abstract

 This study aims to assess the risks facing the water supply system of Tan An City (Long An Province) in the context of rapid urban development and climate change. The primary objectives are to identify key hazards, analyze their level of impact, and propose solutions to enhance system resilience and ensure safe water supply. The research methodology involves document analysis, field surveys, expert interviews, and the application of the Analytic Hierarchy Process (AHP) to determine the weights of risk assessment criteria. Results indicate that the system does not exhibit risks at the very high level; however, several high-level risks (such as insufficient water flow, pipeline leakage, and unstable pressure), medium-level risks (including source pollution, salinity intrusion, flooding, and treatment interruptions), and low-level risks (such as environmental incidents, chemical leaks, blockages, and poor-quality service connections) are still present. Based on these findings, the study proposes a set of comprehensive risk management strategies, including real-time water quality monitoring, infrastructure upgrades, operational improvements, and enhanced emergency response capacity to ensure water supply safety, protect public health, and support sustainable urban development.