Section 329IAC10-2-169. "Significant stratum" defined  


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  •    "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. (Solid Waste Management Division; 329 IAC 10-2-169; filed Mar 14, 1996, 5:00 p.m.: 19 IR 1784)