Authority: IC 14-27-7.5-8

Affected: IC 14-27-7.5

Sec. 4. "Design storm event" means the depth of precipitation that is used to calculate the volume and time distribution of runoff from a watershed that a spillway system must safely pass without jeopardizing the safety of the dam. The depth of precipitation typically ranges from fifty percent (50%) to one hundred percent (100%) of probable maximum precipitation, depending upon the hazard classification.

(Natural Resources Commission; 312 IAC 10.5-2-4; filed Jan 26, 2007, 10:45 a.m.: 20070221-IR- 312060092FRA; readopted filed Sep 19, 2013, 10:13 a.m.: 20131016-IR-312130162RFA; readopted filed Jul 18, 2019, 8:57 a.m.: 20190814-IR-312190291RFA; readopted filed Mar 25, 2025, 9:50 a.m.: 20250423-IR-312240574RFA)