This article does not limit the authority of a water purveyor that promotes conservation through volumetric water pricing, including, but not limited to, an urban water supplier that promotes conservation through volumetric water pricing, to determine and impose a rate, fee, or charge in addition to the charge for the actual volume of metered water delivered.

(Amended by Stats. 2009, Ch. 495, Sec. 4. (AB 975) Effective January 1, 2010.)