My Department does not compile statistical data on the amount of lead or asbestos piping in the water infrastructure system. Irish Water has informed my Department that of its estimated 58,000 kilometres of distribution system, there is a very small proportion of lead piping, consisting of approximately 190 short lengths across 14 local authorities. Irish Water is working to achieve the replacement of these pipes as quickly as possible.
However, there are a significant number of lead public service pipes between the water mains and the customer stopcock or water meter. Irish Water is identifying the location of such lead service connections during the meter installation programme. The numbers currently being identified represent about 5% of houses, but this is expected to be higher in town centre areas. Irish Water also estimates that there may be a further 30,000 to 40,000 houses with shared backyard lead service connections. Irish Water has informed my Department that it intends to invest in public lead pipe replacement schemes, primarily communications pipes, with a view to eliminating lead mains, including shared backyard service connections, over the next ten years. Irish Water is also reviewing its water treatment processes to ensure that they can mitigate the risk in the short term.