Exploring the drinking water supply in Rwanda with panel data analysis

Abstract

This study in Rwanda offers a comprehensive analysis of water quality, reliability, and cost-effectiveness, departing from previous research by utilizing panel data analysis for a nuanced understanding of spatiotemporal dynamics. Unlike earlier studies focusing on specific aspects, this research adopts a holistic approach, examining factors crucial for water supply, quality, and cost, thus providing an integrated view of Rwanda's water sector. By analyzing data from various sources, including the Water and Sanitation Corporation (WASAC), the study evaluates the reliability, quality, and cost-effectiveness of drinking water. It identifies cost-effective water treatment plants and studies determinants such as production cost, raw water quality, and supply between 2017 and 2022, introducing novel metrics such as performance scores and a drinking water quality index. Despite an increase in lost water, WASAC notably improves water supply, resulting in a higher water access rate by 2022. The study highlights the influence of factors such as performance scores and raw water quality on water supply and quality. It emphasizes continuous monitoring, targeted interventions, and community engagement for sustainable water service delivery. The findings provide actionable insights for policymakers, stakeholders, and practitioners, aiming to enhance water management strategies and improve water access in Rwanda. HIGHLIGHTS Panel data analysis offers nuanced spatiotemporal insights departing from cross-sectional methods.; Holistic approach examines water supply, quality, and cost, unlike prior single-focus studies.; Innovative metrics introduced include performance score and water quality index.; Practical insights help identify cost-effective water treatment plants and key determinants.; Sustainability focus emphasizes continuous monitoring and community engagement.;

Keywords

• non-revenue water
• production cost
• raw water
• reliability
• supply
• water quality