Ms Angela Ryan:

In our process, water has to comply with drinking water regulations which are set based on the European directives on drinking water. They set out 48 parameters that have to be tested in drinking water on an ongoing basis to ensure compliance with the directive. We take a risk-based approach. We have a sampling regime undertaken annually. Those water samples are taken from taps in customers' houses, usually the kitchen tap.

What we can find is we can get intermittent exceedances of some of the parametric values from the drinking water regulations.