Any supply of drinking water, whoever the beneficiary, is billed at the rate applicable to the corresponding category of user, households, occupants of buildings used primarily for residential purposes, being able to constitute a category of user. The local authorities referred to in article L. 2224-12 are required to put an end, before 1 January 2008, to any provision or stipulation to the contrary. This article does not apply to water consumption from hydrants and fire hydrants placed on the public domain.