Ind. Code § 13-18-27-18
(a) If:
(2) work on the construction project has begun;
the MS4 community may not order work on the construction project to stop on the grounds that the erosion and sediment control measures included in the construction plan are not adequate unless the project site owner is notified in writing of the inadequacies that the MS4 community perceives in the erosion and sediment control measures and the perceived inadequacies are not resolved within seventy-two (72) hours after the project site owner receives the written notice.
As added by P.L.248-2019, SEC.14.