US lawMichiganRegulationsDepartment — Environment, Great Lakes and EnergyBureau — Drinking Water and Environmental Health DivisionR 325.1601 to 325.1781 — Groundwater Quality Control Rules325.1631R 325.1631R 325.1631 Rescinded.RepealedLast amended: 1994Year: 2026Length: 1 wordsOfficial source Cite as Mich. Admin. Code R 325.1631Rescinded.PreviousR 325.1627NextR 325.1631a