Mich. Admin. Code R. 324.809
Rule 809.
Before injecting fluid into a newly drilled well or previously existing well newly converted to an injection well to be utilized for gas storage, a permittee of an injection well shall provide for a test of the mechanical integrity of the casing, by a qualified person, utilizing either a pressure test at a bottom hole pressure of not less than the maximum expected operating pressure of the gas storage field or an equivalent test approved by the supervisor. Within 14 days of the test, the permittee shall, on a form prescribed by the supervisor, submit a report of each mechanical integrity test to the supervisor or authorized representative of the supervisor. Prior to issuance of an authorization to inject, the supervisor or authorized representative shall have witnessed the test or received the test data, reviewed the test data, and determined that the permittee has demonstrated that the well has mechanical integrity.
Mich. Admin. Code R. 324.809