That's according to the latest test-results carried out by Irish Water into Trihalomethanes.
Seven supplies across Ireland had above the allowable limit.
Water Suppllies In Wicklow May Have High Levels Of Environmental Pollutant
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Co Wicklow Weather
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BrayLight rain shower
High: 12°C | Low: 9°C
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Wicklow
Light rain shower
High: 12°C | Low: 9°C
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ArklowSunny intervals
High: 12°C | Low: 8°C
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Blessington
Sunny intervals
High: 12°C | Low: 7°C
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Baltinglass
Sunny intervals
High: 12°C | Low: 5°C