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Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Underground Injection Control (UIC) Permits
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UIC Permits
National Information
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Permit requirements can be found in 40 CFR parts 124, 144 and 146. Federal permits are required for all Class I, II, and III wells, and some Class V wells. For a permit application or related information, please call EPA Region 9 (contacts) or see the UIC Reporting Forms site. Region 9 states that have delegated programs have permit requirements that vary by jurisdiction and well type. Injection well owners are responsible for determining all applicable requirements.
Additional UIC information can be found at EPA's UIC Web site or for general questions, call the Safe Drinking Water Act Hotline at (800) 426-4791.
Community Involvement and Environmental Justice
EPA is supporting national Environmental Justice (EJ) goals by inviting communities to provide input during the permit application review process. To support early engagement between permittees and overburdened communities, EPA’s Pacific Southwest office has developed an Environmental Justice and Permitting Implementation Plan (PDF) (9 pp, 91K) which the Pacific Southwest regional office will follow in processing applications for EPA issued UIC permits. In addition, EPA has developed a community engagement guide for potential permitees, entitled Promising Practices for Permit Applicants Seeking EPA-Issued Permits: Ways to Engage Neighboring Communities.
Please see the Environmental Justice and Permitting webpage for further information.
On this page:
- Open Comment Period
- No permits currently open for public comment
- Closed Comment Period
- Florence Copper, Inc. (FCI) Production Test Facility Class III Underground Injection Control Area Proposed Permit
- Pacific Gas and Electric Company (PG&E) Compressed Air Energy Storage (CAES) Injection/Withdrawal (I/W) Test Well - Draft UIC Permit
- Class V Experimental UIC Permit City of Los Angeles
- Lahaina Wastewater Reclamation Facility - County of Maui, Hawaii
- Final UIC Permits
- Class I
Newhall Land and Farming Company, Inc.
El Centro Generating Station - Imperial Irrigation District - (Signed July 12, 2010, Minor Modification signed August 21, 2012)
S.M.S. Briners, Inc.
California Specialty Cheeses
Hilmar Cheese Final Permit - (Signed January 9, 2006; Minor Modification signed May 22, 2008; Minor Modification No. 2 signed July 7, 2011)
La Paloma Generating Co.
Panoche Energy Center
Northern California Power Agency - (Permit signed October 16, 2009, Minor Modification signed April 20, 2011, Minor Modification signed May 20, 2013)
Santa Barbara County - Laguna Sanitation District - Class III
Morton Salt, Inc. - Class V
Puna Geothermal Venture, Hawaii
Arizona Public Services UIC Class V Experimental Permit for Carbon Sequestration
City of Los Angeles Class V Experimental Permit (Biosolids Injection)
- Class I
- Draft Permit - Application Withdrawn
Class V Experimental Injection Wells- C6 Resources, LLC Solano County, CA
Open Comment Period
No permits are currently open for public comment
Closed Comment Period
Public Notice of Intent to Issue a Class III Underground Injection Control Area Permit for
Florence Copper, Inc. (FCI) -
Florence, AZ
- Public Notice - Amended March 2015 (PDF) (3 pp, 30K)
- Public Notice - Amended January 2015 (PDF) (3 pp, 31K)
- Public Notice (PDF) (3 pp, 31K)
- Statement of Basis (PDF) (15 pp, 79K)
- Draft Permit (PDF) (44 pp, 162K)
- Appendix A – Project Maps, Aquifer Exemption Delineation, and Well Locations (PDF) (12 pp, 7MB)
- Appendix B - Proposed Well Construction Procedures and Diagrams (PDF) (27 pp, 927K)
- Appendix C - Plugging and Abandonment Plan (PDF) (87 pp, 13MB)
- Appendix D – Geophysical Logging Requirements (PDF) (1 pp, 42K)
- Appendix E - Operations Plan (PDF) (16 pp, 383K)
- Appendix F - Closure and Post-Closure Plans (PDF) (124 pp, 3.6MB)
- Appendix G – Memorandum of Agreement on Historical Preservation (PDF) (11 pp, 77K)
- Appendix H – Wildlife Monitoring Plan (PDF) (3 pp, 147K)
- Appendix I – EPA Reporting Forms (PDF) (1 pp, 112K)
- Appendix J – Region 9 Step Rate Test Policy (PDF) (1 pp, 34K)
- Appendix K – Groundwater Quality Alert Levels and Compliance Monitoring (PDF) (16 pp, 214K)
UIC Permit Application Materials
- Permit Application (PDF) (6 pp, 143K)
- Master Table of Contents, Glossary, Acronyms (PDF) (18 pp, 153K)
- Attachment A - Area of Review (PDF) (646 pp, 66.7MB - Very Large File Size)
- Attachment B - Map of Area (PDF) (9 pp, 7MB)
- Attachment C - Corrective Action Plan and Well Data (PDF) (294 pp, 40MB - Very Large File Size)
- Attachment D - Maps and Cross Sections of USDW's (PDF) (15 pp, 3MB)
- Attachment F - Maps and Cross Sections of Geologic Lithology (PDF) (16 pp, 3.3MB)
- Attachment H - Operating Data (PDF) (19 pp, 350K)
- Attachment I - Formation Testing Program (PDF) (386 pp, 19.7MB- Very Large File Size)
- Attachment K - Injection Procedures (PDF) (31 pp, 1.5MB)
- Attachment L - Well Construction Procedures (PDF) (6 pp, 109K)
- Attachment M - Well Construction Details (PDF) (37 pp, 1.45MB)
- Attachment N - Changes in Injected Fluid (PDF) (1 pp, 784K)
- Attachment O - Plans for Well Failures (Contingency Plan) (PDF) (11 pp, 165K)
- Attachment P - Monitoring Program (PDF) (38 pp, 1.1MB)
- Attachment Q - Plugging and Abandonment Plan (PDF) (341 pp, 16.4MB)
- Attachment R - Necessary Resources (PDF) (25 pp, 1.2MB)
- Attachment S - Aquifer Exemption (PDF) (11 pp, 602K)
- Attachment S - Exhibit S - NI 43-101Technical Report Pre-Feasibility Study (PDF) (284 pp, 7.8MB)
- Attachment T - Existing EPA Permits (PDF) (3 pp, 75K)
- Attachment U - Description of Business (PDF) (3 pp, 77K)
Historical Monitoring Reports
- BHP Copper Inc. Florence Project Self Monitoring Reports: 1997-2001 (ZIP Archive of PDFs) (88MB)
- Curis Resources, Inc./Florence Copper Inc. Reports: 2008-2014 (ZIP Archive of PDFs) (12MB)
- Merrill Mining, LLC Quarterly Reports: 2001-2008 (ZIP Archive of PDFs) (23MB)
- Merrill Mining, Proposed Cessation of Hydraulic Control Report (ZIP Archive of PDFs) (19MB)
Information About the National Historic Preservation Act (NHPA) Section 106 Process Regarding the Project and its Potential Effects on Historic Properties
- Information Regarding the Section 106 Process Under the NHPA for the Florence Copper Project (PDF) (8 pp, 63K)
- Draft Memorandum of Agreement (PDF) (10 pp, 52K)
Pacific Gas and Electric Company (PG&E) Compressed Air Energy Storage (CAES) Injection/Withdrawal (I/W) Test Well - Class V Experimental UIC Permit
- Cover Letter (PDF) (2 pp, 54K)
- Final Permit (PDF) (132 pp, 5.4M)
- Public Notice (PDF) (3 pp, 48K)
- Fact Sheet (PDF) (7 pp, 104K)
- PG&E's UIC Application (PDF) (1,445 pp, 95M) (VERY LARGE FILE SIZE)
Class V Experimental UIC Permit City of Los Angeles
- Cover Letter (PDF) (2 pp, 30K)
- Final Permit (PDF) (24 pp, 300K)
- Permit Appendices (PDF) (25 pp, 900K)
- Statement of Basis (Fact Sheet) (PDF) (6 pp, 50K)
- Permit Application (PDF) (63 pp, 1.0M)
Lahaina Wastewater Reclamation Facility - County of Maui, Hawaii
- Lahaina Groundwater Tracer Study – Final Report, June 2013 (PDF) (502 pp. 14M)
- Lahaina Groundwater Tracer Study Final Interim Report, November 2012 (PDF) (513 pp. 23.3M)
Lahaina Wastewater Reclamation Facility - Draft UIC Permit
- Full Notice (PDF) (3 pp, 20K)
EPA held an informational public meeting and a public hearing on August 20, 2009 concerning the draft Underground Injection Control (UIC) permit for the Lahaina Wastewater Reclamation Facility (LWRF). At the public hearing, the hearing officer extended the public comment period through September 21, 2009.
- Transcript of Public Hearing held August 20, 2009 (43 pp, 241K)
- Public Notice of Intent to Issue (3 pp, 28K)
- Transcript of Public Hearing held November 6, 2008 (PDF) (108 pp, 159K)
- Statement of Basis (PDF) (7 pp, 32K)
- Revised Draft Permit (PDF) (22 pp, 122K)
- Appendix A - Injection Well Schematics (PDF) (5 pp, 233K)
- Appendix B - Reporting Forms and Instructions
- UIC Reporting Forms (7520s)
- Underground Injection Control - Forms and Sample Documents - National Form
- Appendix C - Plugging and Abandonment Plans (PDF) (1 0pp, 625K)
- Permit Application (PDF) (149 pp, 6.6M)
Contact Information
Nancy Rumrill (rumrill.nancy@epa.gov)
(415) 972-3293
Proposed Rule Making for Class II Underground Injection Control- Navajo Nation
Final UIC Permits - Class I
El Centro Generating Station - Imperial Irrigation District
Public Notice (PDF) (4 pp, 30K) The comment period is now closed.
Fact Sheet (PDF) (6 pp, 42K)
Final Permit (PDF) (40 pp, 158K) (Signed July 12, 2010, Minor Modifications signed August 21, 2012 and November 24, 2014)
Minor Modification signed August 21, 2012 (PDF) (12 pp, 426K)
Minor Modification 2 signed November 24, 2014 (PDF) (1 pp, 78K)
Appendix A: Figure E1 (PDF) (1 pp, 1.7M) | Appendix C: 7520-9 (PDF) (2 pp, 70K) |
Appendix A: Figure B1 (PDF), (1 pp, 216K) | Appendix C: 7520-11 (PDF) (2 pp, 94K) |
Appendix B: Figure G1 (PDF) (1 pp, 576K) | Appendix C: 7520-12 (PDF) (2 pp, 87K) |
Appendix B: Figure E2 (PDF) (1 pp, 346K) | Appendix C: 7520-14 (PDF) (2 pp, 102K) |
Appendix B: Figure F1 (PDF) (1 pp, 1.2M) | Appendix D: Geophysical Logging (PDF) (1 pp, 75K) |
Appendix B: Figure F3 (PDF) (1 pp, 1.2M) | Appendix E: Region 9 Falloff Testing Guideline (PDF) (27 pp, 179K) |
Appendix B: Figure M1 (PDF) (1 pp, 1.9M) | Appendix F: General Plugging & Abandonment Procedure (PDF) (3 pp, 21K) |
Appendix B: Figure M2 (PDF) (1 pp, 2.1M) | Appendix F: Figure Q1 (PDF) (1 pp, 1.8M) |
Appendix C: 7520-7 (PDF) (2 pp, 65K) | Appendix G: Society of Petroleum Engineers Paper #16798: Systematic Design and Analysis of Step-Rate Tests To Determine Formation Parting Pressure (This paper can be ordered from the Society of Petroleum Engineers Web site) |
Contact Information
Joel Coffman (coffman.joel@epa.gov)
415-972-3530
S.M.S. Briners, Inc.
- Public Notice (PDF) (2 pp, 18K)
- Final Permit No. CA10910002 (PDF) (34 pp, 559K)
- Fact Sheet (PDF) (7 pp, 33K)
Appendices
- Appendix C:
- Appendix E: Pressure Falloff Requirements (PDF) (26 pp, 1.9MB)
- Appendix G: Society of Petroleum Engineers Paper #16798: "Systematic Design and Analysis of Step-Rate Tests To Determine Formation Parting Pressure"
(This paper can be ordered from the Society of Petroleum Engineers Web site)
George Robin (robin.george@epa.gov)
(415) 972-3532
California Specialty Cheeses, Manteca CA - UIC Class I Permit
Final Permit (PDF) (35 pp, 245K)
Fact Sheet (PDF) (6 pp, 34K)
Permit Application for Class I Non-Hazardous
Injection Well (PDF) (108 pp, 5.9MB, very large)
Appendices
- Appendix A: Figures 1-3, Tables 1 and 2 located in the Permit Application for Class I Non-Hazardous Injection Well document, pages 87, 88, 89, 83 and 84, respectively
- Appendix B: Figures 21 and 22 located in the Permit Application for Class I Non-Hazardous Injection Well document, pages 107 and 108, respectively
- Appendix C:
- Appendix D: Located in the Final Permit for Class I Non-Hazardous Injection Well document
- Appendix E: EPA Region 9 UIC Pressure Falloff Requirements (PDF) (26 pp, 1.9MB)
- Appendix F: Attachment Q located in the Permit Application for Class I Non-Hazardous Injection Well document, page 70
- Appendix G: Society of Petroleum Engineers Paper #16798: Systematic Design and Analysis of Step-Rate Tests To Determine Formation Parting Pressure (This paper can be ordered from the Society of Petroleum Engineers Web site .)
Contact Information
Joel Coffman (coffman.joel@epa.gov)
415-972-3530
Hilmar Cheese Final Permit
- Cover Letter to Minor Modification No. 2 to Permit (PDF) (2 pp, 20K)
- Minor Modification No. 2 to Permit (PDF) (13 pp, 70K)
- Attachments to Minor Modification No. 2 to Permit (PDF) (13 pp, 70K)
- Minor Modification to Permit (PDF) (9 pp, 80K)
- Final Permit (PDF) (27 pp, 93K)
- Appendix A:
- Area of Investigation Base Map (PDF) (1 pg map, 366K)
- Injection Well Schematic (PDF) (1 pg image, 53K)
- Appendix B:
- Appendix D: EPA Region 9 UIC Pressure Falloff Requirements (PDF) (26 pp, 1.9MB)
- Appendix E: P&A (2 pp, 100K)
- Plugging and Abandonment Plan
- EPA's Responses to Public Comments (PDF) (6 pp, 28K)
Contact Information
Joel Coffman (coffman.joel@epa.gov)
415-972-3530
La Paloma Generating Company, LLC
La Paloma WD-1, WD-2, WD-3, WD-4, WD-5 - UIC Class I-NH Draft Permit - Kern County, California
Final Permit No. CA10710001 (PDF) (52 pp, 2.6M)
Minor Permit Modification (PDF) (1 pg, 13K)
Public Notice (PDF) (2 pp, 20K)
Fact Sheet (PDF) (6 pp, 33K)
Appendices
- Appendix C:
- Appendix E: Pressure Falloff Requirements (PDF) (26 pp, 1.9MB)
- Appendix G: Society of Petroleum Engineers Paper #16798: "Systematic Design and Analysis of Step-Rate Tests To Determine Formation Parting Pressure"
(This paper can be ordered from the Society of Petroleum Engineers Web site)
Contact Information
George Robin (robin.george@epa.gov)
(415) 972-3532
Newhall Land and Farming Company, Inc.
- Transmittal Letter (PDF) (2 pp, 100K)
- Final Permit & Appendices (PDF) (91 pp, 9.0M)
Michele Dermer (Dermer.Michele@epa.gov)
(415) 972-3417
Panoche Energy Center for a Class I Nonhazardous Underground Injection Control Permit
- Final Permit CA10600001 (PDF) (36pp, 97K)
- Final Permit Appendixes (PDF) (50pp, 7.4M)
- Fact Sheet (PDF) (7 pp, 35K)
Contact Information
George Robin (robin.george@epa.gov)
(415) 972-3532
Northern California Power Agency
- Public Notice (PDF) (2 pp, 20K)
- Minor Modification signed April 20, 2011 (PDF) (6 pp, 37K) | Cover Letter (PDF) (1 pg, 22K)
- Minor Modification signed May 20, 2013 and cover letter (PDF) (8 pp, 2.2M)
- Final Permit No. CA10910003 (PDF) (42 pp, 655K)
- Fact Sheet (PDF) (6 pp, 45K)
Appendices
- Appendix C:
- Appendix E: Pressure Falloff Requirements (PDF) (26 pp, 1.9MB)
- Appendix G: Society of Petroleum Engineers Paper #16798: "Systematic Design and Analysis of Step-Rate Tests To Determine Formation Parting Pressure" (This paper can be ordered from the Society of Petroleum Engineers Web site )
Joel Coffman (coffman.joel@epa.gov)
415-972-3530
Santa Barbara County - Laguna Santitation District
- Public Notice (PDF) (2 pp, 22K)
- Fact Sheet (PDF) (5 pp, 45K)
- Final Santa Barbara permit (PDF) (35 pp, 943K)
Michele Dermer (Dermer.Michele@epa.gov)
(415) 972-3417
Final UIC Permits - Class III
Morton Salt, Inc.
- Public Notice (PDF) (2 pp, 20K)
- Statement of Basis (PDF) (6 pp, 35K)
- Final Permit (PDF) (35 pp, 1.1M)
Michele Dermer (Dermer.Michele@epa.gov)
(415) 972-3417
Final UIC Permits - Class V
Puna Geothermal Venture
- PGV Minor Modification Class V Geothermal UIC Permit 2/6/2014 (PDF) (28 pp, 150K)
- Appendix A (PDF) - Injection Well Schematics (revised 08/07/2015) (6 pp, 461K)
- Appendix B (PDF) - Existing and Proposed Well Pad Locations (revised 08/07/2015) (3 pp, 455K)
- Appendix C (PDF) - Approved Changes and Workovers (14 pp, 166K)
- Appendix D (PDF) - Casing Monitoring Program (8 pp, 146K)
- Appendix E (PDF) - Chemical & Physical Analysis Plan for Injectate Testing (4 pp, 43K)
- Appendix F (PDF) - Plugging and Abandonment Plans (revised 08/07/2015) (7 pp, 843K)
- Appendix G (PDF) - Geothermal Venture Hydrologic Monitoring Program (2 pp, 35K)
- Appendix H (PDF) - Chemical Additives modified Feb. 6, 2014 (1 pg, 41K)
- Appendix I (PDF) - EPA Forms (1 pg, 25K)
- Cover Letter To Commenters (PDF) (1 pp, 44K)
- Response to Comments (PDF) (3 pp, 104K)
- PGV Public Notice for the Draft Modified Permit (PDF) (2 pp, 14K)
- PGV Factsheet for the Draft Modified Permit (PDF) (5 pp, 20K)
- PGV Draft Modified Permit (PDF) (28 pp, 127K)
- Existing Permit May 16, 2006 (PDF) (37 pp, 128K)
EPA Forms: The 7520 EPA forms may be filled out on-line and printed or downloaded blank, printed and filled in.
Contact Information
George Robin (robin.george@epa.gov)
(415) 972-3532
Arizona Public Services UIC Class V Experimental Permit for Carbon Sequestration
Public Notice (PDF) (3 pp, 20K)
Statement of Basis (PDF) (7 pp, 35K)
Final Permit (PDF) (32 pp, 212K)
- Appendix A - Injection Well, Proposed Location (PDF) (1 pp, 451K)
- Appendix B - Proposed Completion Well Schematic (1 pp, 80K)
- Appendix C -
- Well Drilling Procedure (7 pp, 251K)
- Formation Testing Program (4 pp, 200K)
- Appendix D - Reporting Forms
- Appendix E - Temperature Logging Requirements (1 pp, 14K)
- Appendix F - Plugging & Abandonment Plan (3 pp, 183K)
City of Los Angeles Class V Experimental Permit (Biosolids Injection)
- Cover Letter (PDF) (2 pp, 30K)
- Final Permit (PDF) (24 pp, 300K)
- Permit Appendices (PDF) (25 pp, 900K)
- Statement of Basis (Fact Sheet) (PDF) (6 pp, 50K)
- Permit Application (PDF) (63 pp, 1.0M)
- Guidance 28 (PDF) (4 pp, 269K)
Contact Information
George Robin (robin.george@epa.gov)
(415) 972-3532
Draft Permit - Application Withdrawn
Class V Experimental Injection Wells- C6 Resources, LLC Solano County, CA
Draft Permit dated 7/25/10 - application withdrawn by C6 Resources, 9/10 (PDF) (57 pp, 903K)
Contact Information
Michele Dermer (Dermer.Michele@epa.gov)
(415) 972-3417