US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 611 — PRIMARY DRINKING WATER STANDARDSSubpart L611.52635 Ill. Adm. Code 611.526Analytical Methodology (Repealed)Last amended: 2018Year: 2026Length: 7 wordsOfficial source Section 611 Section 611.526 Analytical Methodology (Repealed)Previous35 Ill. Adm. Code 611.525Next35 Ill. Adm. Code 611.527