The recent report of the Environmental Protection Agency on drinking water quality in 1995 indicates that overall quality continues to be satisfactory, especially in the public supplies. Apart from coliforms, compliance levels in respect of strictly health related parameters were close to or above 99 per cent in 1995. In the case of coliforms, the overall compliance level, 87.5 per cent, was marginally higher than the last report of 1994. There is no room, however, for complacency about the limited exceedances of drinking water quality parameters identified in the report and I will be asking local authorities to ensure that intensive follow-up measures are taken where exceedances occur.
My Department wrote to sanitary authorities in September 1996 reiterating earlier advice that they should carry out risk assessments of water supply sources, with highest priority to be given to groundwater supplies in close proximity to potentially polluting sources. I have asked sanitary authorities to review their action plans for the protection of water supplies in the light of the findings of these risk assessments. In addition, my Department will continue to support the development of the integrated training programme for personnel involved in the treatment and supply of drinking water which is being promoted by the Sanitary Services National Training Group. The quality of drinking water provided by private group schemes raises more serious concerns, and I propose to deal with those in reply to a later question.
The Environmental Protection Agency Report on Water Quality in Ireland (1991-1994), published in September 1996, covers 13,200 kilometers of river channel and a representative sample of 135 lakes. The report shows that 71 per cent of river channel and 77 per cent of lakes surveyed were unpolluted. While the bulk of our rivers and lakes continue to show good quality and are suitable for the requirements of the most sensitive uses such as abstraction for drinking, salmonid fisheries and bathing, both long-term and recent trend analyses in the report indicate two particular developments: first, a further significant reduction in the extent of serious pollution and a slowing down in the rate of increase of moderate pollution and, second, a continuing reduction in unpolluted channel and a distinct trend of increasing levels of slight pollution, mainly through eutrophication.
The gradual abatement of serious pollution may be attributed to the installation of new or improved waste treatment facilities for point source discharges, particularly from sewage, and in some instances to the cessation of seriously polluting industries. The main threat to water quality continues to be eutrophication which is largely due to nutrients from agricultural sources and, to a lesser extent, point source discharges from sewage and industry.
A range of actions is being pursued for the improved management and/or reduction of nutrient losses to waters, particularly phosphorus, with a view to tackling the problem of eutrophication. These actions include the promotion of the Code of Good Agricultural Practice to Protect Waters from Pollution which I launched jointly with the Minister for Agriculture, Food and Forestry in July 1996; an amendment, in the Waste Management Act, 1996, of the Water Pollution (Amendment) Act, 1990 — the Deputy will be familiar with this as she took part in the Committee Stage debate — allowing local authorities to require farmers to prepare nutrient management plans to achieve the correct balance between water quality protection and nutrient requirements for crop production; the launch last December of revised Teagasc recommended application rates for phosphorus fertilisers for grassland; the extension, since September last, of the integrated pollution control licensing system under the Environmental Protection Agency Act, 1992 to new intensive agricultural activities in the pig and poultry sectors; the imposition by local authorities and the Environmental Protection Agency of controls, as appropriate, in respect of phosphorus discharges from industrial activities; the commissioning by the Environmental Protection Agency of relevant studies as part of the ongoing research and monitoring programme for water quality generally — the findings of these will be of benefit to local authorities and the agency in the performance of their water pollution control and management functions; the ongoing implementation by my Department, in conjunction with local authorities, of the major programme of capital investment in water protection which will exceed £1.3 billion by 2005; the REPS operated by the Department of Agriculture, Food and Forestry; and, under Partnership 2000, provision will be made by way of improved capital allowances for a targeted and monitored measure to support investment by farmers in necessary pollution control projects.
To provide better co-ordination for the above actions, and to intensify efforts at protecting vulnerable water quality, my Department is finalising a catchment management strategy. This will aim to encourage an integrated approach to catchment management based on the co-operation of all economic and other interests.