Summary: This document provides a standardised approach and methodology for conducting and reporting risk assessments and risk management of public and private water supplies at the source. It ensures consistency in evaluations, facilitating regulatory oversight and Ireland’s reporting obligations to the European Commission, as required under the European Union (Drinking Water) Regulations 2023. The guidance includes Excel-based reporting templates for risk assessment and risk management, specifically for Public Water Supplies and Group Water Schemes (Annex 5) and Small Private Supplies (Annex 6). These templates are designed for use alongside the guidance and can be downloaded from this page.