Jersey seawater tests reveal high bacteria after rain
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- Infrastructure and Environment reported that routine bacteriological seawater samples taken on 18–19 May at Plemont, Grouville, Harve des Pas and Victoria Pool showed unacceptable bacterial levels.
- Infrastructure and Environment staff said the poor results were likely caused by heavy rainfall on 17–18 May that generated land runoff into the sea.
- Infrastructure and Environment issued public‑health advice to avoid sea swimming for at least 48 hours after heavy rainfall events.
- Jersey government will keep weekly monitoring of 16 bays until 21 September, publishing results on an interactive map.
- Infrastructure and Environment plans to re‑sample the affected beaches on Tuesday and Wednesday.
Why it matters: Beachgoers and local tourism businesses lose immediate access to popular swimming spots, while the health department reduces infection risk by imposing a 48‑hour post‑rain ban, with monitoring continuing until 21 September.
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