Frequently asked questions

Water prices

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”.

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.

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