Doon Cooga Public Water Supply Boil Water Notice. It has come to the attention of Uisce Éireann and Limerick City and County Council that the water supply served by the Doon Cooga Public Water Supply is potentially unsafe to drink due to elevated turbidity. As a result, following consultation with the HSE Health Service Executive, Uisce Éireann and Limerick County Council are issuing a Boil Water Notice with immediate effect to protect the health of consumers. This notice applies to all consumers, supplied by the Doon Cooga PWS. All consumers affected by this notice must boil their water before drinking.