Authority: IC 13-14-8-7; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-3-1; IC 13-18-12- 4

Affected: IC 13-11-2; IC 13-12-3-1; IC 13-18; IC 13-30-2-1

Sec. 36. "Mean cell residence time" means solids retention time as determined in Chapter 9 of "Control of Pathogens and Vector Attraction in Sewage Sludge", EPA/625/R-92/013, December 1992.

(Water Pollution Control Division; 327 IAC 6.1-2-36; filed May 15, 1998, 10:20 a.m.: 21 IR 3782; readopted filed Jan 10, 2001, 3:23 p.m.: 24 IR 1518; readopted filed Nov 21, 2007, 1:16 p.m.: 20071219-IR-327070553BFA; readopted filed Jul 29, 2013, 9:21 a.m.: 20130828-IR-327130176BFA; readopted filed Jun 14, 2019, 1:59 p.m.: 20190710-IR-327190246BFA; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR- 327230810RFA)