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Water treatment
and the environment

Water is a vital part of our lives and we often take it for granted. Find out how we treat your water and sewage along with our work to protect the environment.


Drinking Water

The water we supply for domestic use or food production must comply with the standards in the Northern Ireland Water Quality Regulations, which incorporate European Union standards and more stringent UK national standards.

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Wastewater Treatment

The sewerage system is the network of sewers, pipes and pumps that lie unseen beneath virtually every road and street that carry sewage from where it is produced to the sewage treatment works to be treated and cleaned.

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Our Environment

Northern Ireland Water is the provider of Northern Ireland’s most essential service. It is dedicated to providing the community it serves with water and wastewater services which meet regulatory requirements at the lowest sustainable cost.

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