Trihalomethanes

Trihalomethanes are a group of chemicals that are formed when chlorine reacts with naturally occurring organic matter in drinking water. Chlorine is used to disinfect water and prevent the growth of microbes in the distribution system and this is very important for water safety. Effective disinfection of supplies by chlorine takes precedence over all other parameters involved in drinking water quality.

The drinking water supplies in Co Kildare are tested for Trihalomethane concentration in accordance with the EC Drinking Water (no2) Regulations 2007.

The parameter value set for Total Trihalomethanes is 100μg/litre.

Public Supplies
Date / Supply / Location / Total
Trihalomethanes
30/04/10 / Rathangan Well Field Supply / Rathangan / 10
30/04/10 / Monasterevin Well Field Supply / Monasterevin / 17
17/08/10 / Poulaphouca Regional / Naas / 49
17/08/10 / Monasterevin Well Field Supply / Monasterevin / 12
17/08/10 / Poulaphouca Regional / Cutbush / 46
17/08/10 / Leixlip Regional / Celbridge / 55
17/08/10 / N. Carlow S. Kildare Regional / Castledermot / 44
21/09/10 / Poulaphouca Regional / Kill / 40
21/09/10 / Leixlip Regional / Maynooth / 50
21/09/10 / Athy Town Supply / Athy Town / 14
21/09/10 / Poulaphouca Regional / Clane / 47
19/10/10 / Leixlip Regional / Leixlip / 35
19/10/10 / Poulaphouca Regional / Kildare / 49
19/10/10 / Rathangan Well Field Supply / Rathangan / 28
15/11/10 / Leixlip Regional / Straffan / 37
15/11/10 / Poulaphouca Regional / Prosperous / 29
Private Supplies
14/09/10 / Gormanstown Usk GWS / Gormanstown / 33
21/09/10 / Narraghmore Lipstown GWS / Narraghmore / 4
21/09/10 / The Curragh Military Supply / Curragh Camp / 6
10/10/10 / Gormanstown Usk GWS / Gormanstown / 31

The 2010 results are all in compliance with the Drinking Water Regulations 2007.

The results for 2011 are not available as yet.