US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 611 — PRIMARY DRINKING WATER STANDARDSSubpart L611.52835 Ill. Adm. Code 611.528Transition from Subpart L to Subpart AA Requirements (Repealed)Last amended: 2018Year: 2026Length: 11 wordsOfficial source Section 611.528 Transition from Subpart L to Subpart AA Requirements (Repealed)Previous35 Ill. Adm. Code 611.527