(a) The commission by rule shall require a retail public utility that files a water audit required by Section 16.0121 to notify each of the utility's customers of the water loss reported in the water audit.
(b) A retail public utility shall provide the notice required under Subsection (a) on or with:
(1) the utility's next annual consumer confidence report delivered after the water audit is filed; or
(2) the next bill the customer receives after the water audit is filed.