US lawIllinoisRegulationsTitle 77 ā PUBLIC HEALTHCHAPTER I: DEPARTMENT OF PUBLIC HEALTHSUBCHAPTER r: WATER AND SEWAGEPart 900 ā DRINKING WATER SYSTEMS CODE900.TABLE G77 Ill. Adm. Code 900.TABLE GG Water Quality Sampling Requirements (Repealed)Last amended: 1995Year: 2026Length: 10 wordsOfficial source Section 900 Section 900.TABLE GĀ Water Quality Sampling Requirements (Repealed)Previous77 Ill. Adm. Code 900.TABLE FNext77 Ill. Adm. Code 900.TABLE H