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Northern Ireland Water Drinking Water Quality Public Registers, Individual Customer Tap & Authorised Supply Point Results, & Drinking Water Quality Annual Reports

Open Data Northern Ireland OGL-UK-3.0 ? couldn't verify — publisher blocked our check NI Water · updated 2026-07-20
Open at publisher ↗
Summary Public Register results by Water Supply Zone, anonymised individual results for Customer Tap samples collected within Water Supply Zones and Authorised Supply Points, and Drinking Water Quality Annual Reports.

Files & links (78)

ResourceFormatVerifiedSize
Postcode v Zone Lookup by YearCSV? couldn't verify — publisher blocked our check
2025 NI Water - Understanding your Water Quality ResultsPDFunchecked
2025 NI Water Drinking Water Quality Annual Report.pdfPDFunchecked
2025 NI Water Customer Tap Public RegisterPDFunchecked
2025 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2025 Water Hardness by Water Supply ZonePDFunchecked
2024 NI Water Drinking Water Quality Annual Report.pdfPDFunchecked
2024 NI Water Customer Tap Public RegisterPDFunchecked
2024 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2024 Water Hardness by Water Supply ZonePDFunchecked
2023 Water Hardness for Northern Ireland MapJPEGunchecked
2023 NI Water Drinking Water Quality Annual ReportPDFunchecked
2023 NI Water Customer Tap Public RegisterPDFunchecked
2023 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2023 Water Hardness by Water Supply ZonePDFunchecked
2022 NI Water Drinking Water Quality Annual ReportPDFunchecked
2022 NI Water Customer Tap Public RegisterPDFunchecked
2022 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2021 NI Water Drinking Water Quality Annual ReportPDFunchecked
2021 NI Water Customer Tap Public RegisterPDFunchecked
2021 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2020 NI Water Drinking Water Quality Annual ReportPDFunchecked
2020 NI Water Customer Tap Public RegisterPDFunchecked
2020 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2019 NI Water Drinking Water Quality Annual Report19PDFunchecked
2019 NI Water Customer Tap Public RegisterPDFunchecked
2019 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2018 NI Water Drinking Water Quality Annual ReportPDFunchecked
2018 NI Water Customer Tap Public RegisterPDFunchecked
2018 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2017 NI Water Drinking Water Quality Annual ReportPDFunchecked
2017 NI Water Customer Tap Public RegisterPDFunchecked
2017 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2016 NI Water Drinking Water Quality Annual Report16PDFunchecked
2016 NI Water Customer Tap Public RegisterPDFunchecked
2016 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2015 NI Water Drinking Water Quality Annual ReportPDFunchecked
2015 NI Water - Customer Tap Public RegisterPDFunchecked
2015 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2014 NI Water Drinking Water Quality Annual Report4PDFunchecked
2014 NI Water - Customer Tap Public RegisterPDFunchecked
2014 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2013 NI Water Drinking Water Quality Annual ReportPDFunchecked
2013 NI Water Customer Tap Public RegisterPDFunchecked
2013 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2012 NI Water Drinking Water Quality Annual ReportPDFunchecked
2012 NI Water Customer Tap Public RegisterPDFunchecked
2012 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2011 NI Water - Customer Tap Public RegisterPDFunchecked
2011 NI Water Drinking Water Quality Annual ReportPDFunchecked
2011 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2010 NI Water Drinking Water Quality Annual ReportPDFunchecked
2010 NI Water Customer Tap Public RegisterPDFunchecked
2010 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2009 NI Water Drinking Water Quality ReportPDFunchecked
2009 NI Water Customer Tap Public RegisterPDFunchecked
2009 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2008 NI Water Drinking Water Quality ReportPDFunchecked
2008 NI Water Customer Tap Public RegisterPDFunchecked
2008 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2007 NI Water Drinking Water Quality ReportPDFunchecked
2007 NI Water Customer Tap Public RegisterPDFunchecked
2007 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2006 NI Water Drinking Water Quality ReportPDFunchecked
2006 NI Water Customer Tap Public RegisterPDFunchecked
2006 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2005 NI Water Drinking Water Quality ReportPDFunchecked
2005 NI Water Customer Tap Public RegisterPDFunchecked
2005 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2004 NI Water Drinking Water Quality ReportPDFunchecked
2004 NI Water Customer Tap Public RegisterPDFunchecked
2004 NI Water Customer Tap & Authorised Supply Point ResultsCSVunchecked
2003 NI Water Drinking Water Quality ReportPDFunchecked
2003 NI Water Customer Tap Public RegisterPDFunchecked
2003 NI Water Customer Tap ResultsCSVunchecked
2002 NI Water Drinking Water Quality ReportPDFunchecked
2002 NI Water Customer Tap Public RegisterPDFunchecked
2002 NI Water Customer Tap ResultsCSVunchecked

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Contains public sector information licensed under the Open Government Licence v3.0 and other licences as stated per dataset. Metadata collated by the UK Open Data Index.