Indiana Code Title 36. Local Government § 36-9-40-15

Sec. 15. (a) If repairs to a system become necessary, the county must give written notice to the contractor to make the repairs.  If the contractor fails to begin the repairs not later than thirty (30) days after the notice is received, the county may do the following:

(b) At the expiration of the guarantee period, the county has sixty (60) days in which to notify the contractor of any necessary repairs.