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The rest of this site tells you about today. These explain what the readings mean, and what they cannot tell you.
How long to wait before swimming after rainHeavy rain raises bacteria at UK and Irish bathing waters. What the EPA, SEPA and the EnviWhat the bathing water classifications meanExcellent, Good, Sufficient and Poor come from up to four years of samples. What they measSewage spill data in Ireland: what is and is not publishedNo live sewage spill feed exists in Ireland, north or south. What the EPA, Uisce Eireann, Bathing water rules: what changed in 2025 and 2026The Bathing Water Regulations 2013 changed in England and Wales. Automatic de-designation What is a storm overflow?How UK storm overflows work, when a water company is allowed to use one, and what event du