US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 307 — SEWER DISCHARGE CRITERIA307.402135 Ill. Adm. Code 307.4021Papergrade Sulfite (Drum Wash) (Repealed)Last amended: 1999Year: 2026Length: 9 wordsOfficial source Section 307 Section 307.4021 Papergrade Sulfite (Drum Wash) (Repealed)Previous35 Ill. Adm. Code 307.4020Next35 Ill. Adm. Code 307.4022