Section R. 324.1119 - Wellheads; painting requirements; warning signsRule 1119.
(1) A permittee of a well shall ensure that the valve or valves necessary to shut off all fluid flow nearest the wellhead are painted yellow.(2) A permittee of a well shall ensure that the power supply kill switch of an H2S well that is produced by artificial lift is painted yellow. A permittee of a well shall ensure that the power supply kill switch is conspicuously marked and readily accessible.(3) A permittee of a well shall ensure that a warning sign that has the word "Danger" or "Caution" followed by the words "Poison Gas" is prominently displayed at the wellhead.Mich. Admin. Code R. 324.1119