If the action is not commenced within 30 days after approval of the operation and maintenance assessment roll, no action or defense shall thereafter be maintained attacking the legality of the assessment valuations therein.
Ca. Water Code § 51334
If the action is not commenced within 30 days after approval of the operation and maintenance assessment roll, no action or defense shall thereafter be maintained attacking the legality of the assessment valuations therein.
Ca. Water Code § 51334