Support Documents for the NPDES General Permit for Offshore Oil and Gas Operations in the Western Gulf of America (NPDES GMG290000)
Below are supporting documents for the NPDES General Permit for Offshore Oil and Gas Operations in the Western Gulf of America (NPDES GMG290000). Supporting documents include links to the permit, fact sheets, 24-Hour Offshore Application Portal guidance documents, DMR instructions, NOI/NOT guidance and other offshore related information.
Website Table of Contents
1. 2023 GMG290000 GP Minor Modification
2. Original and Draft 2023 GMG29000 Permit
3. New Company, NOIs, NOTs & Other
4. Discharge Monitoring Reports (DMR)
5. EPA 24-Hour Reporting Application Portal
7. Offshore Training Resources
1. 2023 GMG290000 GP Minor Modification
Minor Modification of the NPDES General Permit for New and Existing Sources and New Dischargers in the Offshore Subcategory of the Oil and Gas Extraction Point Source Category for the Western and Central Portion of the Outer Continental Shelf of the Gulf of America (GMG290000). The permit issued on May 11, 2023, contained typographical errors in Part I.D.3 and Part I.D.4, Pages 48, 49, 52 & 53. There was also a typographical error in the Table of Contents. In accordance with regulations listed at 40CFR122.63 (a), the minor permit administrative changes have been made and approved on March 15, 2024.
2024 GMG290000 Minor Mod Final Permit (pdf)
GMG290000 Minor Mod Letter (pdf)
2023 GMG290000 Typo Correction Descriptions (pdf)
2. Original and Draft 2023 GMG29000 Permit
Original 2023 GMG29000 Permit
EPA Region 6 reissued the National Pollutant Discharge Elimination System (NPDES) General Permit No. GMG290000 for existing and new sources and new dischargers in the Offshore Subcategory of the Oil and Gas Extraction Point Source Category (40 CFR Part 435, Subpart A), located in and discharging to the Outer Continental Shelf offshore of Louisiana and Texas on May 11, 2023 with an effective date of May 11, 2023, and an expiration date of May 10, 2028. Notice of the proposed permit was published in the Federal Register on July 22, 2022, starting a 60-day public comment period. A public meeting and hearing on the proposed permit were held on September 1, 2022. The public comment period ended on September 20, 2023. EPA Region 6 has considered all comments received and made several significant changes.
New dischargers wishing to be covered under this general permit may now submit eNOIs. Please note that Temporary NOI coverage and extended due date for filing an eNOI is 14 days. Operators who filed eNOIs under the previous permit, issued on September 30, 2017, are covered under this reissued permit until 60 days after the effective date of the reissued permit.
Please see Part I.A.2 of the permit for more details.
OCS General Permit - NPDES Permit No. GMG290000 (pdf)
Fact Sheet for Final Permit Decision (pdf)
Ocean Discharge Criteria Evaluation (pdf)
Essential Fish Habitat Assessment (pdf)
Categorial Exclusion Memo (pdf)
Draft 2023 GMG29000 Permit
On July 22, 2022, the Regional Administrator of Region 6 proposes to reissue the National Pollutant Discharge Elimination System (NPDES) General Permit No. GMG290000 for existing and new sources and new dischargers in the Offshore Subcategory of the Oil and Gas Extraction Point Source Category (40 CFR Part 435, Subpart A), located in and discharging to the Outer Continental Shelf offshore of Louisiana and Texas. Please submit comments via Federal eRulemaking Portal at http://www.regulations.gov (Preferred method), email to rosborough.evelyn@epa.gov, or by mail to U.S. EPA, Attn: Evelyn Rosborough, 1201 Elm Street, Dallas, Texas, 75270.
GMG290000 - Proposed General Permit (pdf)
GMG290000 - Ocean Discharge Criteria Evalutation (pdf)
GMG290000 - Essential Fish Habitat Assessment (pdf)
GMG290000 - Virtual Public Meeting Power Point Presentation (pdf)
3. New Company, NOIs, NOTs & Other
If the eNOI system is unavailable at the time of issuance, new dischargers wishing to be covered under this general permit may submit temporary NOIs via email to the offshore specialist (Lad.Uma@epa.gov or R6GenPermit@epa.gov) or via mail to U.S. Environmental Protection Agency, Region 6, Water Enforcement Branch (ECD-WE), ATTN: Offshore Specialist, 1201 Elm Street, Suite 500, Dallas, Texas 75270. Coverage will begin on the date the temporary NOI was received. Electronic NOIs (eNOIs) must be filed within 14 days of temporary NOI, unless the eNOI system remains unavailable after 14 days, in which case eNOIs must be submitted within 14 days of the eNOI system being available. A federal register notice will published soon, however new dischargers are now eligible for coverage.
4. Discharge Monitoring Reports (DMR)
The NPDES General Permit for Offshore Oil and Gas Operations in the Western Gulf of America (NPDES GMG290000) requires facilities to submit quarterly monitoring reports to EPA. Below are links and guidance documents that can help permittees fill out and submit their DMRs to EPA Region 6.
NetDMR User Guide for All Users (National) as of October 2022
DMR GMG290000 General Permit Guidance Document - Coming Soon
5. EPA 24-Hour Reporting Application Portal
The permittee shall report information of incidents to the Offshore 24-Hour Reporting Application Portal at the following address within 24 hours of the time the permittee becomes aware of the circumstances. Below are instructions on how to create an account on for the portal and how to submit a report to EPA.
24 Hour Reporting Application Portal: How to create an account (pdf)
24 Hour Reporting Application Portal: How to submit a report (pdf)
6. Previous 2017 Permit
NPDES General Permit - Final (pdf)
Fact Sheet for Final Permit Decision (pdf)
7. Offshore Training Resources
- R6 2023 NetDMR Permittee Training Presentation
- 2017 vs 2023 GMG290000 Changes (pdf)
- 24 Hour Reporting Application Portal: How to create an account (pdf)
- 24 Hour Reporting Application Portal: How to submit a report (pdf)
- Compliance Assistance Session Presentation (pdf)
- BSEE Water Quality Inspectors Presentation (pdf)
8. EPA Region 6 Contacts
For more information about this page please contact:
Regional Coordinator and Enforcement Officer
Jeanne Eckhart (eckhart.jeanne@epa.gov), 214-665-8174
Offshore Specialist and Enforcement Officer
Uma Lad (Lad.Uma@epa.gov), 214-665-8563
Note: Uma handles general permit applications and processing of Discharge Monitoring Reports.
Offshore Permit Writer
Nichole Young (young.nichole@epa.gov), 214-665-6447
Note: Contact Nichole for all non-enforcement questions.
Mailing Address
For Notices of Intent (NOIs), Notices of Termination (NOTs), Transfer and Mergers, or Discharge Monitoring Reports (DMRs):
U.S. Environmental Protection Agency
NPDES Water Compliance Section
Attn: Uma Lad (ECDWE)
1201 Elm Street, Suite 500
Dallas, TX 75270