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Underground Injection Control
In a cooperative effort between the Environmental Protection Agency (EPA), state and tribal governments, the UIC Program works toward protecting underground sources of drinking water (USDW) from contamination by regulating the construction and operation of injection wells. Underground injection wells are primarily used to dispose of wastes into the subsurface and have the potential to adversely affect USDWs. Five classes of wells are defined according to the type of waste that is disposed and where the waste is injected. Detailed information on regulations can be found at EPA Regulations.
A brief description of the well types:
Class I: Industrial and Municipal Wells That Inject Beneath Lowermost USDW
Class II: Associated with Oil and Gas Production
Class III: Associated With Mineral Recovery
Class IV: Wells Injecting Hazardous Waste Into USDWs (Prohibited)
Class V: Injection Wells Not Included in Other Classes (typically Shallow Disposal
Systems)
For more specific program information on the UIC program:
Deep Injection Wells (Class I, II, III wells)
Shallow Waste Disposal System/Well (Class V wells)
News and Announcements:
Proposed UIC Class II Injection Well Program Authorization for the Fort
Peck Tribes in Montana
EPA is seeking public comment until February 29, 2008 and holding a public hearing on February 25, 2008 in Poplar, Montana on its proposal to approve a Class II (i.e., oil and gas-related) Underground Injection Control program for the Fort Peck Tribes. The Federal Register notice PDF and Fact Sheet PDF below summarizes EPA's proposal and provides instructions on how to submit written comments through the www.regulations.gov website. You may also click here to go directly to the Federal Register notice and supporting documentation. This documentation is in general chronological order, with the most recent supporting documents at the bottom of the list. To provide comments, use the yellow icon under "Add Comments" located next to this notice at the top of the web page. For further information please contact Douglas Minter at minter.douglas@epa.gov or by calling 1-800-227-8917 extension 312-6079 within EPA Region 8 or 303-312-6079 outside EPA Region 8.
Federal Register notice PDF (10 pp, 95.8K)
Fact Sheet PDF (2 pp, 32K)
Colorado Division of Wildlife Foothills Wildlife Health Laboratory
EPA seeks public comment on Class V Draft Permit for the Colorado Division
of Wildlife, Foothills Wildlife Health Laboratory located west of Fort Collins,
Colorado on 4330 La Porte Avenue. Because a small volume of laboratory waste fluids are going
into a septic system, that septic system is a Class V well under UIC regulations.
Class V Draft Permit PDF (23 pp, 6.6MB)
Statement of Basis
PDF (18 pp, 331.4K)
Contents of Administration Record
Additional/Updated Documents
Class V 2nd Draft Permit PDF (20 pp, 181.3K)
Draft Permit Appendix A PDF (2 pp, 358.3K)
Draft Permit Appendix B PDF (26 pp, 4.6MB)
Draft Permit Appendix C PDF (4 pp, 90.4K)
Class V 2nd Statement of Basis PDF (16 pp, 179.7K)
Statement of Basis Figure 1 PDF (136.3K)
2005 CDOW UIC Class V Draft Permit response to comments
PDF (139.6K)
edited 2005 CDOW UIC Class V Draft Permit Statement
of Basis PDF (21 pp, 680.5K)
Class
V Carbon Geologic Sequestration Pilot Project
EPA has released a guidance for Class V Geological Sequestration Pilot Projects
in March 2007. For additional information, select a link below.
Class V Guidance Q & A
Class
V Guidance on Experimental Well Technology PDF (23 pp, 450.3K)
