US lawIllinoisRegulationsTitle 77 — PUBLIC HEALTHCHAPTER I: DEPARTMENT OF PUBLIC HEALTHSUBCHAPTER r: WATER AND SEWAGEPart 900 — DRINKING WATER SYSTEMS CODE900.5077 Ill. Adm. Code 900.50Inorganic Chemicals (Repealed)Last amended: 1995Year: 2026Length: 7 wordsOfficial source Section 900 Section 900.50 Inorganic Chemicals (Repealed)Previous77 Ill. Adm. Code 900.45Next77 Ill. Adm. Code 900.60