29 people working at Irish Water are on salaries worth more than 100 thousand euro.

Further details of wages and bonuses at the utility company have been released by the Department of the Environment.

These figures have been released following a question submitted by Labour TD Kevin Humphreys.

They show 29 staff at Irish Water could earn bonuses of up to 15 per cent of their salary.

27 staff are paid car allowances worth over €10,000 a year to use their own cars.

The figures show 29 staff at the state-owned utility are on salaries of over €100,000 a year.

Managing director John Tierney also ran up costs of €10,000 on his company credit card in 2013.

The government's written to Mr Tierney for an explanation on what targets staff must meet in order to qualify for a bonus.