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TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL CHAPTER I: POLLUTION CONTROL BOARD SUBCHAPTER b: PERMITS PART 704 UIC PERMIT PROGRAM SECTION 704.129 TRANSITIONING FROM A CLASS II INJECTION WELL TO A CLASS VI INJECTION WELL
Section 704.129 Transitioning from a Class II Injection Well to a Class VI Injection Well
a) The owner or operator of a Class II injection well that is injecting carbon dioxide into an oil and gas reservoir for the primary purpose of long-term storage must apply for and obtain a Class VI injection well geologic sequestration permit when there is an increased risk to a USDW compared to usual Class II injection well operations. In determining if there is an increased risk to a USDW, the owner or operator must consider the factors specified for Agency consideration in subsection (b).
b) The Agency must determine when there is an increased risk to a USDW from injecting carbon dioxide into an oil and gas reservoir for the primary purpose of long-term storage compared to usual Class II injection well operations and that a Class VI injection well permit is required. In order to make this determination, the Agency must consider the following factors:
1) Any increase in reservoir pressure within the injection zones;
2) Any increase in carbon dioxide injection rates;
3) Any decrease in reservoir production rates;
4) The distance between the injection zones and USDWs;
5) The suitability of the Class II injection well area of review delineation;
6) The quality of abandoned well plugs within the area of review;
7) The owner's or operator's plan for recovery of carbon dioxide after the cessation of injection;
8) The source and properties of injected carbon dioxide; and
9) Any additional site-specific factors that the Agency determines are necessary to determine whether the injection poses greater risk than usual Class II operations.
BOARD NOTE: Derived from 40 CFR 144.19 (2017).
(Source: Amended at 42 Ill. Reg. 21095, effective November 19, 2018) |