EPA Oversight of California's Underground Injection Control (UIC) Program: EPA and State Correspondence

EPA and State correspondence associated with EPA's Oversight of California's Underground Injection Control (UIC) Program.

If you experience a problem reading a document with assistive technology, please contact us.

October 15, 2021 - California Department of Conservation and SWRCB’s response to EPA’s September 16, 2021 letter regarding the State’s Class II UIC Compliance Status (pdf) (482.32 KB, October 15, 2021)
California Department of Conservation and SWRCB’s October 15, 2021 letter responding to EPA’s September 16, 2021 letter regarding the State’s Class II UIC Compliance Status.
September 16, 2021 - EPA letter to the California Resources Agency and SWRCB regarding the State’s Class II UIC Compliance Status (pdf) (222.01 KB, September 16. 2021)
EPA letter to the California Resources Agency and SWRCB regarding the State’s Class II UIC Compliance Status, dated September 16, 2021.
May 1, 2020 - EPA Letter to CalGem and SWRCB Responding to the 3/23/2020 Joint Update Letter (pdf) (160.02 KB, May 1, 2020)
EPA letter to CalGem and California State Water Resources Control Board (SWRCB) responding to the 3/23/2020 joint update letter.
August 16, 2018 - Letter from the State (Harris/Bishop) to EPA (Albright) (pdf) (330.84 KB, 8/16/2018)
Letter from the State to EPA providing an update on the State’s Class II UIC Compliance Review.
Aquifer Exemption Proposal Review Status (8/8/2018) (pdf) (661.16 KB, 8/8/2018)
Enclosure to August 16, 2018 letter from the State to EPA providing an update on the State’s Class II UIC Compliance Review.
February 28, 2018 - Letter from the State (Harris/Bishop) to EPA (Albright) (pdf) (1.3 MB, 2/28/2018)
Letter from the State to EPA Providing an Update on the State’s Class II UIC Compliance Review.
November 13, 2017 - EPA letter to DOGGR about the San Ardo and McCool Ranch Oil Fields Aquifer Exemption Package (pdf) (213 KB, November 13, 2017)
EPA letter notifying DOGGR that the aquifer exemption package for the Lombardi and Aurignac Sands in the San Ardo and McCool Ranch oil fields is not complete and supplemental material is needed.
November 9, 2017 - Letter from the State (Harris/Bishop) to EPA (Albright) (pdf) (546.2 KB, 11/09/2017)
Letter from the State to EPA Providing an Update on the State’s Class II UIC Compliance Review.
March 30, 2017 - EPA Letter to DOGGR Agreeing to Addendum to UIC MOA (pdf) (692.52 KB, 3/30/2017)
EPA Letter to DOGGR agreeing to an addendum to the UIC MOA to clarify the eleven aquifers historically treated as exempt.
March 30, 2017 - Addendum to the Underground Injection Control Memorandum of Agreement between DOGGR and EPA (pdf) (83.87 KB, 03/30/2017)
ADDENDUM to Underground Injection Control Program Memorandum of Agreement Between California Division of Oil, Gas, and Geothermal Resources and the United States Environmental Protection Agency Region 9.
January 25, 2017 - EPA Letter to DOGGR (Harris) and SWRCB (Bishop) (pdf) (166.34 KB, 01/25/2017)
EPA letter to DOGGR and SWRCB responding to the 1/17/2017 joint update letter
December 30, 2016 - Letter and Enclosure from the SWRCB to EPA (pdf) (3.06 MB, 12/30/2016)
Letter and enclosure from the SWRCB to EPA providing a final update on the State’s evaluation of Class II UIC wells injecting into non-exempt aquifers
May 2016 - EPA letter to DOGGR (Harris) and SWRCB (Bishop) (pdf) (1.55 MB, 05/17/2016)
EPA letter to DOGGR (Harris) and SWRCB (Bishop) discussing progress made to date to restore the CA Class II UIC Program to compliance.
May 2016 - EPA letter to Supervisor Adam Hill (pdf) (245.16 KB, 05/04/2016)
EPA letter to Supervisor Adam Hill responding to March 2016 correspondence.
April 2016 - EPA letter to DOGGR (pdf) (439.14 KB, 04/19/2016)
EPA letter to DOGGR (Harris) requesting more information on the Proposed Expansion of the Arroyo Grande Aquifer Exemption package.
March 2016 - Letter from Supervisor Adam Hill to EPA (pdf) (341.79 KB, 03/07/2016)
Letter from Supervisor Adam Hill, San Luis Obispo County, to EPA concerning the Arroyo Grande aquifer exemption proposal.
November 2015 - EPA letter to DOGGR (Bohlen) and SWRCB (Bishop) (pdf) (402 KB, 11/03/2015)
EPA letter to DOGGR (Bohlen) and SWRCB (Bishop) responding to October 2015 letters.
October 2015 - Letter from SWRCB to EPA (pdf) (489.69 KB, 10/21/2015)
Letter from SWRCB to EPA on status of UIC well review.
July 2015 - EPA letter to SWRCB (Bishop) and DOGGR (Bohlen) (pdf) (187.72 KB, 07/27/2015)
EPA letter to SWRCB (Bishop) and DOGGR (Bohlen) responding to 7/15/2015 correspondence and attachments.
May 2015 - EPA letter to SWRCB (Bishop) and DOGGR (Bohlen) (pdf) (124 KB, 05/28/2015)
EPA letter to SWRCB (Bishop) and DOGGR (Bohlen) responding to 5/15/2015 letter describing recent steps taken to address ongoing compliance issues with CA's Class II UIC Program.
March 2015 - EPA letter to SWRCB (Bishop) and DOGGR (Bohlen) (pdf) (1.04 MB, 03/09/2015)
EPA letter to SWRCB (Bishop) and DOGGR (Bohlen) responding to 2/6/2015 Program Revision Plan.
December 2014 - EPA letter to SWRCB and DOGGR (pdf) (1.96 MB, 12/22/2014)
EPA letter to SWRCB (Bishop) and Bohlen (DOGGR) requesting program revision plan by 2/6/2015.
July 2014 - EPA Memo: Enhancing Coordination and Communication with States (pdf) (1.33 MB, 07/24/2014)
EPA Memo: Enhancing Coordination and Communication with States on Review and Approval of Aquifer Exemption Requests Under SDWA.
July 2014 - EPA letter to CalEPA (Rodriquez) and CaNRA (Laird) (pdf) (411.4 KB, 07/17/2014)
EPA Letter to Matt Rodriquez (CalEPA) and John Laird (CaNRA).
May 2012 - EPA Review of Aquifer Exemptions in California - DRAFT Preliminary Findings (pdf) (642.78 KB, 05/11/2012)
Review of Aquifer Exemptions in California (DRAFT Preliminary Findings) Transmitted via email on May 11, 2012 from David Albright, Manager, Ground Water Office, USEPA Region 9 to Rob Habel, DOGGR with cc to Tim Kustic, DOGGR.
July 2011 - EPA letter to DOGGR (pdf) (135.16 KB, 07/18/2011)
EPA letter to DOGGR (Miller) transmitting copy of the CA Class II UIC Program Review final report.
June 2011 - California Class II Underground Injection Control Program Review Report (pdf) (18.94 MB, June 2011)
California Division of Oil, Gas and Geothermal Resources Class II UIC Program Review Report.