Water reports
River basin management plans
Annual performance report for Dŵr Cymru (Welsh Water)
Annual performance reports for Hafren Dyfrdwy
Storm overflow spill data reports
Bathing water quality
Compliance Assessment of the River Wye SAC Against Phosphorus Targets
Compliance Assessment of Welsh River SACs Against Phosphorus Targets
Update to phosphorus targets for water bodies in Special Area of Conservation (SAC) rivers in Wales
Updated water quality targets for Welsh river SACs 2022
Assessment of water quality in protected rivers in Wales