Alaska Admin. Code tit. 20, § 25.1060 – Minimum criteria for siting

(a) A storage operator shall demonstrate to the satisfaction of the commission that a Class VI well will be sited in areas with a suitable geologic system. The storage operator shall demonstrate that the geologic system comprises
1. (1) an injection zone of sufficient areal extent, thickness, porosity, and permeability to receive the total anticipated volume of the carbon dioxide stream;
2. (2) a confining zone free of transmissive faults or fractures and of sufficient areal extent and integrity to contain the injected carbon dioxide stream and displaced formation fluid and allow injection at proposed maximum pressures and volumes without initiating or propagating fractures in the confining zone.
(b) The commission may require that the storage operator identify and characterize additional zones that will impede vertical fluid movement, are free of faults and fractures that may interfere with containment, allow for pressure dissipation, and provide additional opportunities for monitoring, mitigation, and remediation.