US lawIndianaRegulationsTitle 327 — Water Pollution Control DivisionArticle 6.1 — ARTICLE 6.1. LAND APPLICATION OF BIOSOLID, INDUSTRIAL WASTE PRODUCT, AND POLLUTANT-BEARING WATERRule 2 — Definitions6.1-2-44327 IAC 6.1-2-44327 IAC 6.1-2-44 "pH" definedLast amended: 2026Year: 2027Length: 14 wordsOfficial source Cite as Ind. Admin. Code tit. 327, r. 6.1-2-44Sec. 44. "pH" means the logarithm of the reciprocal of the hydrogen ion concentration.Previous327 IAC 6.1-2-43Next327 IAC 6.1-2-45