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Skip to main contentDepartment of Housing, Local Government and Heritage

By protecting our water, we protect our environment, our health and our jobs

Welcome to the Protect Our Water Home Page.

Existing Customer:

If you have previously created an account for Protect Our Water you don’t need to create a new account.

If you do not have your login details please go to the login page and click on the "Lost Account Ref." or "Lost Password" button.

New Customer:

To create an account and register your domestic wastewater treatment system you will need your:

  1. Property address and Eircode
  2. Payment details

The registration fee is €50.

About Domestic Wastewater Treatment Systems Registration

The Water Services Act 2017  requires water services authorities to maintain a register of domestic waste water treatment systems in their functional areas.

Under the Act, owners of domestic waste water treatment systems are required to ensure that their systems are on the register. Your registration will contribute to the protection of Ireland's ground and surface waters.

Queries Contact:

Please direct all queries relating to inspections/grants to your Local Authority. 

The requirement to re-register every five years has been removed from the legislation.Your existing certificate remains valid.

Changes of Ownership must be sent in by letter or email. Any additional queries please use contact details below:

Telephone support on 01-6438484 services available between 10am to 14.00pm you can also email queries  to


Registrations and Payments by credit card can be made online and this is the most efficient method of paying any liabilities due in respect of POW.


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If you want further details please read the Frequently Asked Questions

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