Section 312IAC11-2-20. "Riprap" defined

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"Riprap" means angular, limestone rock that satisfies each of the following conditions:

(1) No individual piece weighs more than one hundred twenty (120) pounds.

(2) At least ninety percent (90%) of the material passes through a twelve (12) inch sieve.

(3) Not more than ten percent (10%) of the material passes through a six (6) inch sieve.

(Natural Resources Commission; 312 IAC 11-2-20; filed Feb 26, 1999, 5:49 p.m.: 22 IR 2222; readopted filed Aug 4, 2005, 6:00 p.m.: 28 IR 3661; filed Sep 14, 2005, 2:45 p.m.: 29 IR 465; readopted filed Jul 28, 2011, 10:28 a.m.: 20110824-IR-312110042RFA)

                    
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