US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 611 — PRIMARY DRINKING WATER STANDARDSSubpart P611.68535 Ill. Adm. Code 611.685Analytical Methods (Repealed)Last amended: 2007Year: 2026Length: 7 wordsOfficial source Section 611 Section 611.685 Analytical Methods (Repealed)Previous35 Ill. Adm. Code 611.684Next35 Ill. Adm. Code 611.686