Section R. 324.1105 - Classification of H2S wells; applicability of rules to well classesRule 1105.
(1) An H2S well is considered a class I H2S well and is subject to the requirements of R 324.1103, R 324.1104, R 324.1106 to R 324.1115(1) to (5) and (7), and R 324.1116 to R 324.1130, unless a permittee can supply data showing that the well is a class II H2S, class III H2S, or class IV H2S well.(2) An H2S well that is considered to be a class II H2S well is subject to the requirements of R 324.1103, R 324.1104, R 324.1106 to R 324.1115(1) to (5) and (7), R 324.1116 to R 324.1129, and R 324.1130(1),(3) and (4).(3) An H2S well that is considered to be a class III H2S well is subject to the requirements of R 324.1103, R 324.1104, R 324.1106 to R 324.1109, R 324.1111, R 324.1112, R 324.1114, R 324.1115(1) to (5) and (7), R 324.1116 to R 324.1129, and R 324.1130(1) and (4).(4) An H2S well that is considered to be a class IV H2S well is subject to the requirements of R 324.1103, R 324.1104, R 324.1106 to R 324.1109, R 324.1111, R 324.1112(2), R 324.1114, R 324.1115(6) and (7), R 324.1118 to R 324.1124, R 324.1126 to R 324.1129, and R 324.1130(1) and (4).(5) If a well is being drilled through, but not completed in, a reservoir known to contain hydrogen sulfide-bearing gas, then the well shall be in compliance with the requirements of the H2S well class to which it would be assigned if it were completed in the reservoir. Compliance shall continue until all hydrogen sulfide-bearing zones have been cased off.(6) The supervisor may require a permittee to provide the information necessary to determine whether these rules apply to a well.Mich. Admin. Code R. 324.1105