US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 611 — PRIMARY DRINKING WATER STANDARDSSubpart O611.65835 Ill. Adm. Code 611.658Special Monitoring for Organic Chemicals (Repealed)Last amended: 2004Year: 2026Length: 10 wordsOfficial source Section 611 Section 611.658 Special Monitoring for Organic Chemicals (Repealed)Previous35 Ill. Adm. Code 611.657