US lawArizonaRegulationsTitle 18 — Environmental QualityChapter 4 — Department of Environmental Quality - Safe Drinking WaterR18-4-224R18-4-224R18-4-224. RenumberedRenumberedLast amended: 2008Length: 2 wordsOfficial source Cite as Ariz. Admin. Code § R18-4-224R18-4-224. RenumberedPreviousR18-4-223NextR18-4-225