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EPA/WATER RIN: 2040-AE98 Publication ID: Fall 2010 
Title: Federal Requirements Under the Underground Injection Control (UIC) Program for Carbon Dioxide (CO2) Geologic Sequestration (GS) Wells 
Abstract: Geologic Sequestration (GS) is a key climate change mitigation technology. During GS, CO2 captured from an emission source such as a coal-fired electric power plant, is injected into deep subsurface rock formations for long term storage. The Safe Drinking Water Act (SDWA) requires EPA to regulate the injection of fluid, including gases such as CO2, to prevent the endangerment of underground sources of drinking water (USDWs) and public health. In March 2007, EPA issued guidance to assist State and EPA Regional Underground Injection Control (UIC) Programs in processing permit applications for pilot and other demonstration-scale GS projects as Class V UIC experimental technology wells. In addition, EPA committed to developing a long term management framework for permitting commercial scale GS projects. Part of this long term management framework included regulations for owners and operators of wells injecting CO2. New regulations for GS wells would provide a consistent framework for permitting GS wells to ensure that CO2 injection does not endanger underground sources of drinking water. EPA proposed regulations for GS wells on July 25, 2008. In addition, in August 2009 EPA published a Notice of Data Availability that presented new information and data related to GS. 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 144 to 146 (proposed revision)   
Legal Authority: 42 USC 300h et seq   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  07/25/2008  73 FR 43491   
NODA  08/31/2009  74 FR 44802   
Final Action  12/00/2010    
Additional Information: EPA publication information: NPRM - http://www.regulations.gov/search/Regs/home.html#documentDetail?R=09000064806955cf; EPA Docket information: EPA-HQ-OW-2008-0390
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, State, Tribal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: http://www.epa.gov/ogwdw/uic/wells_sequestration.html  
RIN Data Printed in the FR: No 
Agency Contact:
Suzanne Kelly
Environmental Protection Agency
Water
1200 Pennsylvania Avenue NW, Mail Code WTR9,
Washington, DC 20460
Phone:202 564-3887
Email: kelly.suzanne@epa.gov

Lee Whitehurst
Environmental Protection Agency
Water
4606M,
Washington, DC 20460
Phone:202 564-3896
Email: whitehurst.lee@epamail.epa.gov