Indiana Code Title 14. Natural and Cultural Resources § 14-37-7-4

Sec. 4. (a) If a vertical or vertical part of a horizontal well is drilled and completed as a producing well:

an owner or operator shall set a production string of casing properly centralized and cemented to ensure that adequate cement is placed behind the casing in the area between fifty (50) feet below and one hundred (100) feet above the commercially minable coal seam.

(b) On completion of the coal seam protection requirements of subsection (a), the owner or operator shall prepare and submit to the director an affidavit on a form provided by the division that includes the following:

(c) The director may require the owner or operator to run a cement bond-variable density log or other similar logging procedure to determine the adequacy of cement bonding if the director believes either or both of the following:

(d)  If the logging procedure under subsection (c) indicates that adequate cement bonding has not occurred between fifty (50) feet below and one hundred (100) feet above the commercially minable coal resource, the owner or operator shall perform remedial action, as ordered by the director, that results in adequate bonding.

(e) The owner or operator shall:

(f) If the director finds that coal seam protection measures taken by an owner or operator did not adequately protect the coal seam during coal mining operations in close proximity to a well that has not been plugged under IC 14-37-8-2 for which an affidavit is submitted under subsection (b), the owner or operator shall perform additional remedial action to ensure protection of the coal resource and the health and safety of miners.  Significant water, gas, or other fluid movement into the underground mine that is transmitted through the annular space outside the protective casing string is evidence of a failure to adequately protect the coal seam.

(g) Preparation of the log and any remedial action required under this section are at the expense of the owner or operator.