Authority: IC 13-14-8-7; IC 13-15-2-1; IC 13-19-3-1
Affected: IC 13-30-2; IC 25-31; IC 36-9-30
Sec. 169.
"Significant stratum" means a geologic unit with a minimum thickness of eighteen (18) inches which, based on appearance, mainly color and texture, can be visually distinguished from other layers.
329 IAC 10-2-169