Alaska Admin. Code tit. 20, § 25.444 – Transitioning from a Class II well to a Class VI well

(a) An owner or operator that is injecting carbon dioxide shall apply for and obtain a storage facility permit under 20 AAC 25.1000 - 20 AAC 25.1900 when the primary purpose of injection is long-term carbon storage or there is an increased risk to underground sources of drinking water when compared to Class II operations. In determining whether there is a primary purpose of long-term carbon storage or an increased risk to underground sources of drinking water, the owner or operator shall consider the factors in (b) of this section.
(b) In addition to (a) of this section, the commission shall determine when the primary purpose of injection is long-term carbon storage or there is an increased risk to underground sources of drinking water compared to Class II operations, and a storage facility permit is required. In order to make this determination, the commission must consider the following:
1. (1) increase in reservoir pressure within the injection zone;
2. (2) increase in carbon dioxide injection rates;
3. (3) decrease in reservoir production rates;
4. (4) distance between the injection zone and underground sources of drinking water;
5. (5) suitability of the Class II area of review delineation;
6. (6) quality of abandoned well plugs within the area of review;
7. (7) the owner's or operator's plan for recovery of the carbon dioxide at the cessation of injection;
8. (8) the source and properties of the injected carbon dioxide;
9. (9) any additional site-specific factors determined by the commission.