Created within the framework the EPA's Underground Injection Control (UIC) initiative and under the authority of the Safe Drinking Water Act, EPA’s new measures deal with the regulation of drinking water near CCS sites. They aim at ensuring that the storage wells used to store the captured CO2 are ”properly sited, built, tested and monitored”, in a way that they cannot pollute underground sources of drinking water.
The drinking water rule also creates a new class of CCS injection well (class VI), designed to facilitate the transfer of CO2 for long-term storage. It also makes provision for safe wells decommission, in line with EPA requirements.
The second new measure requires the reporting of the amount of CO2 injected into the ground for any reason, including enhanced oil and gas recovery.
EPA convened several workshops to involve stakeholders from state, local and tribal governments, industry, public interest groups and the general public, and discussed technical issues of geological storage before finalising these geological storage requirements.
Access the press release here.