Domestic Waste Water Treatment Systems (DWWTS)

Registration of domestic waste water treatment systems (Septic tanks)

Households connected to domestic wastewater treatment systems are required to register their systems in line with the Domestic Waste Water Treatment Systems (Registration) Regulations 2012  (SI No. 220 of 2012), as amended by Domestic Waste Water Treatment Systems (Registration)(Amendment) Regulations 2013  (SI No. 180 of 2013). This includes households connected to septic tanks and similar systems.

Households can register and pay online by credit or debit card by creating an account on the Protect Our Water website

Registration forms are available from:

  • Local Authority Offices
  • Public Libraries
  • Citizen information centres

The registration fee is €50. Householders who have not yet registered should do so as soon as possible as it is an offence for a householder not to register and, if convicted, the penalty is a fine of up to €5,000. The fee covers the costs of administering the register and managing inspections that are carried out under the Water Services (Amendment) Act 2012 .