The EPA says water for nearly 1 million people is at risk of contamination as it recommends priority improvements for 121 water schemes, ten of them in Donegal.
Over 20 thousand people, on 20 public water supplies, are affected by boil notices, none of them in Donegal.
In its assessment of Donegal, the report says there were 33 supplies in the county on its original Remedial Action List, that's now reduced to 10. Two were due to be completed in 2014, two to be completed in or after 2015, and six have no timeframe for completion.
In 2013, supplies in Donegal were 100% compliant for microbiological parameters and 99.1% compliant for chemical parameters.