Dáil Éireann debate -
Tuesday, 7 May 1991

Vol. 407 No. 9

Written Answers. - Treatment of Drinking Water.

Michael D. Higgins

Question:

62 Mr. M. Higgins asked the Minister for the Environment if he has satisfied himself that alum, which is used in water treatment plants throughout the country, is safe; if there are guidelines laid down by his Department regarding its use; and if any research had been carried out by his Department into its effect on the population.

Minister for the Environment (Mr. Flynn)

Use of aluminium sulphate in the treatment of drinking water is worldwide and is accepted by the World Health Organisation and the EC.

The EC mandatory limit of 0.2 mg/1 in drinking water has been applied in Ireland by the European Communities (Quality of Water Intended for Human Consumption) Regulations, 1988. Comprehensive advice on the regulations has been issued to sanitary authorities in a handbook published by the Environment Research Unit.

I am satisfied that use of aluminium sulphate in accordance with the regulations is consistent with international practice and is safe. My Department are not directly involved in research, but closely follow developments in this area.