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.