Tankered Wastewater

This is wastewater that is not discharged into the public wastewater system. Instead, it is collected and transported by tanker to a suitable wastewater treatment plant. There it will be treated before reentering the environment.

Tankered Wastewater can only be accepted at a wastewater treatment plant if there is sufficient capacity and infrastructure in place.

Irish Water also need to ensure there is no negative impact posed by the wastewater on both the wastewater treatment process and the receiving environment.

The types of wastewater may include:

  • Commercial / industrial wastewater
  • Landfill leachate
  • Municipal wastewater from private sources

Tankered Wastewater Agreements

A producer or haulier of tankered wastewater needs authorisation to import that waste into an Irish Water wastewater treatment plant.

This is granted through a Tankered Wastewater Agreement. This applies to:

  • Waste collection permit holders – for imports of septic tank sludge from domestic households
  • Producers of wastewater – for all other types of tankered waste

More details


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