US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 611 — PRIMARY DRINKING WATER STANDARDSSubpart T611.85835 Ill. Adm. Code 611.858Fluoride Secondary Standard (Repealed)Last amended: 2001Year: 2026Length: 8 wordsOfficial source Section 611 Section 611.858 Fluoride Secondary Standard (Repealed)Previous35 Ill. Adm. Code 611.856Next35 Ill. Adm. Code 611.870