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Wastewater treatment capacity register

A wastewater treatment capacity register gives you an indication of whether there's wastewater treatment capacity available in an area.

The county registers on this page give an indication of the spare capacity available at a wastewater treatment plant to treat additional loads in an area.

The capacity register is intended to inform forward planning activities, by indicating the ability of the Uisce Éireann treatment and production infrastructure to accommodate growth, estimated using a standardised methodology.  

The capacity available at treatment plants changes regularly based upon the loads received from new and existing customers. Our registers are only an indication of available capacity based on available information at the date of issue and are subject to change.

These registers provide wastewater treatment capacity information only and do not provide an indication of network capacity. In cases where a new development is planned, we may need to make upgrades to the wastewater network to support the collection of the new load and to mitigate the risk of flooding from occurring to our existing infrastructure. We assess whether the wastewater network can support a new development during the connections process.

Please note:

If a capacity register states there is available capacity, that is not confirmation that a connection will be approved. Uisce Éireann does not accept liability for the consequences of any person relying on the information in these registers. At all times an executed Connection Agreement with Uisce Éireann is required to ensure a connection can be made and capacity is available for your development.

In all instances if you are considering progressing a development you should contact our Connection and Developer Services team who will provide an up-to-date view and greater level of detail in relation to the availability of capacity. Learn more about the Pre Connection Enquiry and Connection Application process in the Connections section of this site.

All new Connections are subject to Uisce Éireann’s Connections Charging Policy and at all times the issue of a connection offer is a matter for the discretion of Uisce Éireann.

Learn more about our capacity registers and view them by clicking on the links below.

Information on planned projects can be viewed at the Projects section of this website.


Wastewater treatment capacity registers

Connections FAQs

Check our frequently asked questions for more information about how to connect your housing development to the Uisce Éireann network.