Users of a Private Water Supply

The Regulations require all private water supplies to meet regulatory standards to ensure the water is safe and sufficient at all times. Whilst local authorities undertake a number of statutory duties to this effect they are required to determine for their respective interests the persons who, individually or collectively, provide the supply of drinking water; occupy the land from, or on which, the supply is obtained or located; or exercise powers of management or control in relation to the supply. This person(s) is known as the relevant person(s).

In most cases the relevant person(s) will also be a consumer of the private supply however there will be times where consumers who are not defined as a relevant person(s) will use the supply. This section outlines the information relevant to them and what can be done if the sufficiency or quality of the supply is questioned.

A single domestic dwelling is one where the water is supplied only for domestic purposes and not used for any commercial activity. The Regulations outline further information regarding these types of supply.

The Regulations apply to private water supplies where the water is intended for human consumption. The Regulations define water intended for human consumption as:

  • all water either in its original state or after treatment, intended for drinking, cooking, food preparation or other domestic purposes, regardless of its origin and whether it is supplied from a distribution network, from a tanker, or in bottles or containers;

  • all water used in any food-production undertaking for the manufacture, processing, preservation or marketing of products or substances intended for human consumption;

Therefore if the supply is used solely for irrigation in a garden or to provide water for animals it is not covered by the Regulations and therefore not subject to the monitoring requirements.



Page reviewed: 31 August 2016
Page modified: 31 August 2016

Drinking Water Inspectorate