Written answers
Tuesday, 18 November 2025
Department of Housing, Planning, and Local Government
Wastewater Treatment
Naoise Ó Muirí (Dublin Bay North, Fine Gael)
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574. To ask the Minister for Housing, Planning, and Local Government the number of properties in County Mayo that have had their DWWTS inspected under the national inspection plan, by year, for the past five years; and the number of advisory notices that have been issued as a result of these inspections to households. [63223/25]
Christopher O'Sullivan (Cork South-West, Fianna Fail)
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My Department does not collate the data sought in the Question; this information is held by the individual local authorities.
The Environmental Protection Agency prepares and oversees the National Inspection Plan for Domestic Waste Water Treatment Systems, while inspections are carried out by local authorities. My Department has no role in this operational process.
Grant assistance is available in specific circumstances, including where a system has failed an inspection and an Advisory Notice has issued. These schemes are administered by the local authorities on behalf of my Department.
For County Mayo, the Rural Water Liaison Officer in Mayo County Council will be able to provide the most up-to-date and accurate figures.
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