Northern Ireland had an overall high drinking water quality in 2022, with all the parameters analyzed nearing 100 percent compliance. Nonetheless, when comparing the site of sampling, the results are slightly different. Around 99.94 percent of samples taken from water leaving the treatment plants complied with the parameters in 2022, while water taken at the consumers taps or supply points reported slightly lower results, at 99.88 of compliance.
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DAERA (Northern Ireland). (September 29, 2023). Share of drinking water samples that met regulatory standards in Northern Ireland in 2022, by parameter [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/1466152/drinking-water-quality-northern-ireland-by-parameter/
DAERA (Northern Ireland). "Share of drinking water samples that met regulatory standards in Northern Ireland in 2022, by parameter." Chart. September 29, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/1466152/drinking-water-quality-northern-ireland-by-parameter/
DAERA (Northern Ireland). (2023). Share of drinking water samples that met regulatory standards in Northern Ireland in 2022, by parameter. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/1466152/drinking-water-quality-northern-ireland-by-parameter/
DAERA (Northern Ireland). "Share of Drinking Water Samples That Met Regulatory Standards in Northern Ireland in 2022, by Parameter." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 29 Sep 2023, /statistics/1466152/drinking-water-quality-northern-ireland-by-parameter/
DAERA (Northern Ireland), Share of drinking water samples that met regulatory standards in Northern Ireland in 2022, by parameter ÌÇÐÄÆƽâ°æ, /statistics/1466152/drinking-water-quality-northern-ireland-by-parameter/ (last visited July 23, 2026)
Share of drinking water samples that met regulatory standards in Northern Ireland in 2022, by parameter [Graph], DAERA (Northern Ireland), September 29, 2023. [Online]. Available: /statistics/1466152/drinking-water-quality-northern-ireland-by-parameter/
