Indiana Code Title 13. Environment § 13-21-5-7

(1) notice of the meeting must be given in accordance with IC 5-14-1.5-5;

(2) an agenda of the meeting must be posted at least forty-eight (48) hours in advance under IC 5-14-1.5-4;  and

(3) the board shall notify a general circulation newspaper in each county that makes up the district of the meeting and the agenda to be discussed.

(1) first class mail if notice can reasonably be expected to reach the newspaper at least forty-eight (48) hours before the meeting;  and

(2) telephone if notice cannot reasonably be expected to reach the newspaper under subdivision (1).