The implementation of the polluter-pays and beneficiary-pays principles is essential to ensure that those who generate future liabilities or benefit from resources also bear the related costs. For instance, it is estimated that in Parafba BRL 2 million could be collected through water charges once the state system is fully operational, according to the volumes established by water permits. This represents ten times the current budget of the state water agency, of which only 7.5% can be spent on overhead costs for governance functions.