Frequently Asked Questions.

Uisce Éireann’s Standard & Specification define the technical requirements and best practices for designing, constructing, and maintaining water and wastewater infrastructure in Ireland. They ensure consistency, safety, sustainability, and regulatory compliance.

All designers, contractors, developers, and consultants working on Uisce Éireann infrastructure projects must adhere to the relevant Uisce Éireann Standards & Specifications. The use of the Standard Details is mandatory.

The latest versions are available on the Uisce Éireann website or through our internal document management system. Always ensure you are referencing the current version.

• A standard sets out general principles, performance criteria, and design guidance.
• A specification provides detailed technical requirements for materials, components, and construction processes.

They are reviewed on a rolling basis and updated based on emerging technology, regulatory changes, lessons learned, and stakeholder feedback. Updates are communicated via our News section on the Uisce Éireann website. 

Refer to the project scope and asset type. Use the applicable Asset Class Guidance and consult with Uisce Éireann’s Asset Management or Engineering teams if in doubt.

Deviation from the requirements of the Standard Details is not allowed without the prior written approval of Uisce Éireann. Any proposed deviation from the Standard Details must be submitted using our Derogation Application Form on the Uisce Éireann website. Deviations cannot proceed without written approval.

Yes, but only through a formal  Derogation Application process and Derogation Application form. You must demonstrate equivalent or improved performance, sustainability, safety, and value for money.

Yes. We are committed to continuous improvements and encourage ongoing feedback to enhance our Standards & Specifications. We welcome and value feedback from contractors, suppliers, and professional bodies. Ways to give feedback can be found on the Uisce Éireann website.

Yes. All standards comply with relevant Irish and EU legislation, Building Regulations, and align with best practices from recognised bodies such as NSAI, BS, ISO, and EN.

Site-specific constraints must be assessed through engineering judgment. A formal derogation may be submitted for review and approval where justified. Refer to the project scope and asset type. Use the applicable Asset Class Guidance and consult with Uisce Éireann’s Asset Management or Engineering teams if in doubt.

If you have a query in respect of a Standard Detail, please send your query to standard&specifications@water.ie and a member of the technical team will respond to you directly.