800,000 get drinking water from inadequate plants - EPA

Cork city and south county Dublin among places on agency’s remedial list

The number of people getting their drinking water from inadequate water treatment plants has grown to 800,000, according to the latest report from the Environmental Protection Agency published on Wednesday afternoon.

Water supplies to 800,000 people were affected by issues such as inadequate treatment for cryptosporidium, inadequate disinfection, and poor control of trihalomethanes - the chemical compounds which have been linked to cancers.

The figure applies to the first three months of 2016, up 21,000 from the last three months of 2015.

On the remedial action list are large scale supplies such as that serving a population of 106,000 people in Cork city and a supply serving more than 21,000 people in central Kerry. In Dublin the Ballyboden reservoir which serves south county Dublin is on the list, requiring the reservoir to be covered by 2017.

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The remedial action list is used by the EPA to prioritise the most serious deficiencies in public water supplies. It is compiled form audits and audits and investigations of drinking water quality failures.

Inclusion on the list does not necessarily mean the drinking water is unfit for consumption, but that the infrastructure is not adequate to prevent such an occurrence.

The primary issues identified by the EPA include: effective disinfection, ineffective barriers to cryptosporidium, and inadequate control of trihalomethanes.

A spokesman for the EPA said the “ continuing high numbers of people getting their drinking water from schemes listed on the EPA remedial action list highlights the need for a sustained increase in investment in our water services. Without this investment the risk of new water restrictions and boil water notices continues”.

Tim O'Brien

Tim O'Brien

Tim O'Brien is an Irish Times journalist