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Unregulated or Exempted Drinking Water Supplies

Mayo County Council implements an annual drinking water monitoring programme. 

The programme provides for monitoring of regulated supplies.  These supplies include public water supplies and private water supplies served from both their own sources or, served from Mayo County Council’s public water supplies. 

Compliance monitoring is carried out on these regulated supplies in accordance with the provisions of the European Communities (Drinking Water) (No 2) Regulations 2007, SI No 278 of 2007. 

Additional, operational monitoring is carried out in consultation with the Health Service Executive to ensure that the quality of drinking water supplied is at its optimum. 

Regulation 14 of European Communities (Drinking Water) (No 2) Regulations 2007, SI No 278 of 2007 addresses unregulated water supplies or “exempted” supplies.  

The Regulations state that, “exempted supply means a supply of water which:-

(i) constitutes an individual supply of less than 10 cubic metres a day on average or serves fewer than 50 persons, and 
(ii) is not supplied as part of a commercial or public activity, or 
is used exclusively for purposes in respect of which the relevant supervisory authority is satisfied that the quality of the water has no influence, either directly or indirectly, on the health of the consumers concerned”

Further to this the Environmental Protection Agency issued Drinking Water Advice Note No 12.   This Advice Note on Exempted Drinking Water Supplies provides binding guidance for Water Services Authorities (WSAs) on exempted supplies in accordance with Regulation 14 of the Regulations.,31784,en.html

In fulfilment of it’s obligations under the Regulations and subsequent Advice Note 12, Mayo County Council Water Service Authority has, in consultation and agreement with the Health Service Executive, issued an advice leaflet for “unregulated” or “exempt” water supplies “KEEPING YOUR UNREGULATED PRIVATE WATER SUPPLY SAFE”  (see below) provides advice for schemes supplied from their own source. 

If you have any questions in relation to unregulated water supplies you can contact:-

  • Group Water Schemes Section, Mayo County Council, Aras an Chonate, The Mall, Castlebar, Co Mayo
    Tel 094 9024444 or
  • Senior Environmental Health Officer, Environmental Health Section, The Health Service Executive, St Mary’s Hospital Castlebar, Co Mayo, Tel 094 9042260.

Unregulated or Exempted Drinking Water Supplies (Document)

Unregulated or Exempted Drinking Water Supplies
Formats Available:

Water Quality Information

Water Quality Unit
Environment Section
Aras an Contae
The Mall
County Mayo
Phone: 094 902 4444
Open: 9 am-5 pm M-F (closed 1-2 pm)

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