Investment in wastewater set to match investment in drinking water for the first time in 2020

Wednesday November 13th, 2019

Wastewater infrastructure investment is to increase to almost €400 million

Irish Water’s investment in wastewater infrastructure is to increase to almost €400 million in 2020 as the amount invested in upgrading wastewater infrastructure matches the investment in drinking water for the first time. This reflects a steady increase in investment as more projects move from the design and planning stages through to construction.
The progress made by Irish Water in 2018 to ensure the development and delivery of solutions to support the safe return of wastewater to the environment is demonstrated in the EPA’s annual Urban Wastewater Treatment Report, which was published today.

Irish Water is on track to deliver a programme of unprecedented scale to stop the discharge of untreated or inadequately treated wastewater into our seas, lakes and rivers. Since 2014, Irish Water has stopped approximately 44% of untreated and inadequately treated wastewater that was being discharged to our rivers, lakes and the sea.

In 2018, Irish Water invested a total of €230 million in its wastewater infrastructure programme to improve Ireland’s wastewater infrastructure, removing 12 areas from the priority list and bringing seven large urban areas into compliance with the EU standards. This investment is reflective of the phase of project development where spending ramps up when construction starts.

Irish Water upgraded or built wastewater treatment plants in 20 locations across the country to safeguard the environment, support economic development and provide capacity for new homes and future development. Many more wastewater projects are currently in the design and planning stage to address the remaining non-compliant areas including Arklow and Ringsend.

One of the challenges associated with wastewater infrastructure is the lack of data and models on the national sewer network, which is essential for understanding the causes of deficiencies such as overflows and sewer flooding. Irish Water is undertaking a number of national programmes to map, monitor and assess the wastewater networks for the first time.

Under these programmes, in 2018 Irish Water assessed over 10,000 Kilometers of sewer, carried-out cleaning works on over 120 Kilometers and rehabilitation works on over 45 Kilometers of sewer to allow them to function more effectively.

The estimated 2,200 storm water overflows on the wastewater network carry out a vital function in preventing flooding to property and roads. However some storm water overflows can temporarily impact on waterbodies particularly sensitive ones such as Bathing Waters. The scale of this challenge and the associated capital requirement means that prolonged and substantial investment will be required in this area over multiple investment periods in order to achieve satisfactory levels of performance while also mitigating against risks posed by climate change.

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