US lawIndianaRegulationsTitle 327 — Water Pollution Control DivisionArticle 6.1 — ARTICLE 6.1. LAND APPLICATION OF BIOSOLID, INDUSTRIAL WASTE PRODUCT, AND POLLUTANT-BEARING WATERRule 2 — Definitions6.1-2-36327 IAC 6.1-2-36327 IAC 6.1-2-36 "Mean cell residence time" definedLast amended: 2026Year: 2027Length: 28 wordsOfficial source Cite as Ind. Admin. Code tit. 327, r. 6.1-2-36Sec. 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.Previous327 IAC 6.1-2-35Next327 IAC 6.1-2-37