Compendium of drinking-water systems and technologies from source to consumer
Overview
Safe and reliable drinking-water supply depends on effective risk management, appropriate regulation and support, and well-informed technology selection. The Compendium of drinking-water systems and technologies from source to consumer (the Compendium) provides a structured reference for local-level engineers, planners, practitioners, and decision-makers seeking to strengthen drinking-water supply systems in diverse contexts. Taking a whole-of-system perspective in line with water safety planning principles, the Compendium outlines typical supply configurations and disaggregates them into functional components, including source, treatment, distribution, and household-level practices.
By consolidating technical and operational knowledge and good practices, the Compendium enables evidence-based decision-making and supports the selection of solutions that are appropriate to local conditions, resources, and water quality challenges. It links technology choice to health targets and management approaches, reinforcing the progressive implementation of WHO’s Framework for safe drinking-water. Cross-cutting themes such as risk-based management and monitoring, life-cycle considerations, inclusion, and strengthening resilience are addressed to promote sustainable and equitable services.
As a companion to WHO’s 2024 Guidelines for drinking-water quality: small water supplies and Sanitary inspection packages, the Compendium facilitates planning, stakeholder engagement, and capacity development towards safely managed drinking-water services for all.