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policy instrument · 12 September 2025
EPA Class VI Well Primacy Grant to Arizona
Jurisdiction countryUnited States
Instrument typepermitting-regulatory
Authoritygovernment
Scopecarbon removal and point-source capture
Statusin-force
Parent instrument idus-epa-class-vi-uic
DetailThe EPA finalized a rule granting Arizona the authority to oversee all classes of underground injection wells under the Safe Drinking Water Act (SDWA), making Arizona the fifth state to receive 'primacy' for Class VI wells. This transfers permitting responsibilities from the EPA to the Arizona Department of Environmental Quality (ADEQ) for CO2 storage projects in deep geological formations. The EP
Stated statusin-force
Merged duplicates[object Object]
Pathway scopeall-cdr
Pathway notegrants Class VI well permitting authority for CO2 storage generally, without naming any specific removal pathway
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