Frequently asked questions

Water prices

Is there a reduction or exemption from the CVA (True Cost of Sanitation) if I have an individual wastewater treatment system?

Public management of on-site sanitation (GPAA) is provided by the Public Water Management Company (SPGE).  

An installation grant is available for individual wastewater treatment systems installed since 01/01/2018. However, there is no longer an exemption from the CVA on the water bill as of 1 January 2022.  

Other incentives have nevertheless been put in place, such as financing of the main costs linked to monitoring these systems, namely: 

  • mandatory periodic maintenance of wastewater treatment systems; 
  • emptying excess sludge; 
  • financing operational controls. 

For more information, visit the GPAA website.

What is the price of a litre of water?

The price of water changes every year depending on various parameters.  

In 2026, 1 litre of water will cost around €0,0065.

Find all the information you need on our page The cost of water.

How is the price of water broken down?

Several parameters enter into water pricing.  

The cost of water can be divided into four items:  

  • the True cost of supply (CVD);  
  • the True cost of sanitation (CVA); 
  • the Water Social Fund; 
  • VAT. 

Find all our explanations on our page “Water has a cost”.

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