Works will commence in the Belvelly area on 20 May 20

Works to improve the water quality, reliability of water supply and reduce leakage will commence in the Belvelly area on 20 May 20. The works have been designed to alleviate water quality issues resulting in the ‘Do not Consume’ restriction which has been in place since 16 August 2018 for householders and businesses in the Belvelly area. Following commissioning and testing of the works, consideration to lifting the restriction will be carried out in consultation with, and on the advice of, the HSE with whom we are liaising on an ongoing basis.

Replacing 2.6 kilometres of problematic water mains

We are working in partnership with Cork County Council, to replace 2.6 kilometres of problematic water mains in the Belvelly and Ticknock areas of Great Island in Cork. The old, damaged cast iron pipes will be replaced with modern, polyethylene (plastic) pipes.

The works will also involve laying new water service connections from the public water main in the road to customers’ property boundaries and connecting it to the customers’ water supply. Where the existing service connections on the public side are lead these will be replaced as part of this improvement work.

Part of our Leakage Reduction Programme

These works are part of I national Leakage Reduction Programme. The works will be carried out by Coffey Northumbrian Ltd. in partnership with Cork County Council on our behalf, and are expected to be completed by the end of September 2019.

The works will take place in two phases. The first phase in Belvelly is from Belvelly Bridge approximately 2.2 kilometres along the L2989 road towards Ballard Hill. The second phase is opposite Ticknock Retail Park for approximately 400 metres towards Hilltop Park.

Steven Blennerhassett, Leakage Reduction Programme Regional Lead

“Replacing the old, damaged pipes will improve water quality and ensure a more reliable water supply for the Belvelly area. These improvements to the water network are essential in providing a safe, secure and reliable water supply, now and into the future.”  

Works may involve some short-term water shut offs

The works may involve some short-term water shut offs and the project team will ensure that customers are given a minimum of 48 hours notice prior to any planned water shut offs. Where water mains are being constructed traffic management may be in place during this time. Local and emergency traffic will be maintained at all times.

Do Not Consume notice remains in place for 76 water supply connections

We would like to remind householders and businesses in the Belvelly area of Great Island that the Do Not Consume notice remains in place for 76 water supply connections until further notice. This restriction has been in place since 16 August 2018. The restriction on the supply is implemented following consultation with the Health Service Executive (HSE) in order to protect public health due to sustained iron exceedances and low residual chlorine.

Since the ‘Do not Consume’ restriction came into place, Irish Water and Cork County Council have implemented a number of emergency measures to alleviate this risk to public health, including installing automatic flushing valves, chlorine analysers and a chlorine booster station, as well as continuous pipeline scouring and schedule of manual mains flushing, together with the construction of a new treatment process at Tibbotstown to adjust the pH of the water.

Neil Smyth, Operations Lead

“The Tibbotstown Water Treatment plant provides safe drinking water to a large area. Unfortunately, the age and material of the supply pipe to Belvelly is causing significant water quality issues with high iron levels being detected. When originally built to supply water to Cobh, this cast iron pipeline was intended for the transmission of water. However, as the supply to Cobh was changed and with connections to the main being made over the decades, this pipe became part of the distribution system, for which it wasn’t designed.”

“To address this legacy issue, we have been working as a priority to install several additional treatment processes to protect the supply. Crucially, Irish Water has accelerated the implementation of the long term solution. When this cast iron main is decommissioned and the  distribution pipework replaced in the affected area, water will be supplied from the Glashaboy waterworks. This investment will help to eliminate the water quality risk associated with the cast iron pipework.”

“Irish Water apologises to the community and businesses in the area affected and appreciate the significant inconvenience and concern that this water quality restriction brings. We are endeavouring to resolve the issue as quickly as possible and wish to thank those affected for their patience and co-operation,“ added Neil Smyth.

More information

Customers can phone us on Callsave 1850 278 278 if they have any further questions about the project or visit our National Leakage Reduction Programme Page.


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