US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 303 — WATER USE DESIGNATIONS AND SITE-SPECIFIC WATER QUALITY STANDARDSSubpart C303.44535 Ill. Adm. Code 303.445Total Dissolved Solids Water Quality Standard for the Lower Des Plaines River (Repealed)Last amended: 2023Year: 2026Length: 15 wordsOfficial source Section 303.445 Total Dissolved Solids Water Quality Standard for the Lower Des Plaines River (Repealed)Previous35 Ill. Adm. Code 303.444Next35 Ill. Adm. Code 303.446