(1) The regulator must, within 3 months after receiving, under section 82, a system leakage management plan for approval, approve the plan, and give the water service provider notice of the approval, if the regulator is satisfied--
(a) the plan was certified by a registered professional engineer; and
(b) the plan is adequate in all material particulars.
(2) A notice given under subsection (1) must tell the water service provider--
(a) the intervals, of not less than 1 year, at which regular reviews of the approved plan must be conducted; and
(b) if the regulator requires regular audits of the approved plan under section 108--the intervals, of not less than 2 years, at which the audits must be conducted.