Authority: IC 15-16-2-44

Affected: IC 15-16-2

Sec. 4. (a) "Biosolid", as defined in 327 IAC 6.1-2-7, means solid, semisolid, or liquid residue generated during the treatment of domestic sewage in a treatment works. Examples of biosolid include, but are not limited to, the following:

1. (1) Scum or a solid removed in primary, secondary, or advanced wastewater treatment processes.
2. (2) A material derived from biosolid.
3. (3) An industrial waste product that contains domestic sewage or material under subdivision (1) or (2).

(b) The term does not include ash generated during the firing of biosolid in a biosolid incinerator or grit and screenings generated during preliminary treatment of domestic sewage in a treatment works.

(State Chemist of the State of Indiana; 355 IAC 8-2- 4; filed Feb 16, 2012, 11:50 a.m.: 20120314-IR-355110364FRA; readopted filed Jul 5, 2018, 11:38 a.m.: 20180801-IR- 355180129RFA; readopted filed Oct 11, 2024, 11:15 a.m.: 20241106-IR-355230830RFA)