Ill. Admin. Code tit. 35, § 730.183 - Minimum Criteria for Siting
a)
The owner or operator of a Class VI injection well must sufficiently
demonstrate to support an Agency determination that the wells will be sited in
areas with a suitable geologic system. The owner or operator must sufficiently
demonstrate that the geologic system comprises both of the following elements:
1) An injection zone of sufficient areal
extent, thickness, porosity and permeability to receive the total anticipated
volume of the carbon dioxide stream; and
2) Confining zones free of transmissive
faults or fractures and of sufficient areal extent and integrity to contain the
injected carbon dioxide stream and displaced formation fluids and allow
injection at proposed maximum pressures and volumes without initiating or
propagating fractures in the confining zones.
b) The Agency may require the owner or
operator of a Class VI injection well to identify and characterize additional
zones that will impede vertical fluid movement; that are free of faults and
fractures which may interfere with containment; that allow for pressure
dissipation; and that provide additional opportunities for monitoring,
mitigation and remediation.
Notes
Added at 36 Ill. Reg. 1661, effective January 20, 2012
BOARD NOTE: This Section corresponds with 40 CFR 146.83(2011).
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