(a) The regional board shall specify in waste discharge requirements a compliance period for each Class I waste management unit. The compliance period is the number of years equal to the active life of the waste management unit (including any waste management activity prior to the adoption of the waste discharge requirements) plus the closure period. The compliance period is the minimum period of time during which the discharger shall conduct a water quality monitoring program subsequent to a release from the unit.

(b) The compliance period begins anew each time the discharger initiates an evaluation monitoring program meeting the requirements of section 2550.9 of this article.

(c) If the discharger is engaged in a corrective action program at the scheduled end of the compliance period specified under subsection (a) of this section, the compliance period shall be extended until the discharger can demonstrate that the waste management unit has been in continuous compliance with its water quality protection standard of section 2550.2 of this article for a period of three consecutive years.