Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: 03/12/2025 Water CWA GCC Rio Grande, Inc.

REGION 6 DAL LAS, TX 75270 &, 2025 TRANSMITTED VIA E-MAIL Honorable Jane Hughson Mayor, City of San Marcos 630 East Hopkins Street San Marcos, Texas 78666 jhughson@sanmarcostx.gov RE: Administrative Order; Docket Number: CWA-06-2025-1716 San Marcos Wastewater Treatment Facility TPDES Permit Number: TX0047945 Dear Mayor Hughson: Enclosed is an Administrative Order (AO) issued to the City of San Marcos, for violations of the Clean Water Act (CWA) (33 U.S.C. 1251 et seq.).

U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270-2102 August 13, 2021 TRANSMITTED VIA E-MAIL Ms.

TRANSMITTED VIA EMAIL January 30, 2024 Mr.

Inspector Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Matthew Allen Inspection Date 10/29/2024 Time Operator Representative Helmer Oil Corp. 08:30 Operator Info Helmer Oil Corp.

Inspection Report Mechanical Integrity Test Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas TX 75270 Inspector Matthew Allen MIT Date 11/20/2024 Operator Representative Performance Energy Resources, LLC Report Sent Operator Time 12:00 Inject Interval Multiple USDW 342 Well Type Disposal Annulus Fluid Type oil Casing 7 Concentric Pkr Tubing 2.375 Packer Depth 1975 Operator Info Performance Energy Resources, LLC P.O.

Inspector Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Matthew Allen Inspection Date 12/18/2024 Time 08:00 Operator Representative 4D Oil & Gas, LLC Operator Info 4D Oil & Gas, LLC 532 Kihekah Pawhuska, OK 74056 Phone: 580-541-5802 Inventory ID API Well No Lease Name Well ID OS5447000 BLUE STEM 3-36 Location NW 36 26N 08E Status Inactive Well Type Disposal Latitude 36.689975 Longitude -96.399951 Inspection Plugging Witnessed Reason Responsible Company at 4D Oil & Gas, LLC Time of Inspection Inspect No.

ft E A ~ United States .,,..._., Environmental Protectior , Agency Region 6 Compliance Assurance and Enforcement Division INSPECTION REPORT Inspection Date(s): Media: Regulatory Program(s) 03/10-11/2025 Water NPDES Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Contact: Cleco Power, LLC Brame Energy Center 275 Rodemacher Road, Lena, Louisiana 71447 (31.399234, -92.719091) Lena, Louisiana, 71447 275 Rodemacher Road Lena, Louisiana 71447 Rapides Parish Mr.

TRANSMITTED VIA E-MAIL February 1, 2026 Mr.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270-2102 March 14, 2023 TRANSMITTED VIA E-MAIL Honorable Carl Pickett Mayor of Liberty 1829 Sam Houston Street Liberty, Texas 77575 cpickett@pickettandpickett.com Re: Administrative Order; Docket Number: CWA-06-2023-1729 City of Liberty Wastewater Treatment Facility; TPDES Permit Number: TX0074284 Dear Mayor Pickett: Enclosed is an Administrative Order (AO) issued to City of Liberty for violations of the Clean Water Act (CWA) (33 U.S.C. 1251 et seq.).

Inspector Operator Info Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Uma Lad Inspection Date 04/17/2024 Time 13:08 Operator Representative Beckham And Butler Beckham and Butler Inventory ID OS5661000 1124 South Price Hominy, OK 74035 Phone: 918-885-4406 API Well No Lease Name Well ID Pershing 1WSW Location NE 01 24N 09E Status Active Well Type Disposal Latitude 36.58925 Longitude -96.282514 Inspection Routine Reason Responsible Company at Beckham and Butler Time of Inspection Inspect No.

Inspection Report Mechanical Integrity Test Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas TX 75270 Inspector Matthew Allen MIT Date 11/20/2024 Operator Representative Performance Energy Resources, LLC Report Sent Operator Inject Interval 1848 - 1900 USDW 310 Annulus Fluid Type oil Concentric Pkr Casing 4.5 Tubing 2.375 Time 10:00 Well Type Disposal Packer Depth 1802 Operator Info Performance Energy Resources, LLC P.O.

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 03/05/2025 Water, Clean Water Act National Pollutant Discharge Elimination System (NPDES) (Brine) Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Contango Resources, LLC Fanny Lease 36.799176, -96.661584 Shidler, Oklahoma 74652 1300 Greenbriar Place Oklahoma City, Oklahoma, 73159 Osage County 918-392-3396 Mike Alkire Michael.Alkire@contango.com Field Supervisor FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: n/a OKU002214 n/a 211111 1311 Personnel participating in inspection: Matthew Allen EPA Region 6 ECDW Inspector EPA Lead Inspector Signature/Date Supervisor Signature/Date MATTHEW ALLEN Date: 2025.03.26 11:41:10 -05'00' Digitally signed by MATTHEW ALLEN Matthew Allen Date JEANNE ECKHART Date: 2025.04.02 11:05:37 -05'00' Digitally signed by JEANNE ECKHART Jeanne Eckhart Date 6ENFORM-019-R8.2 (02/12/2020) 1 Section I - INTRODUCTION Contango Resources, LLC / Fanny Lease (OKU002214) Inspection Date 03/05/2025 PURPOSE OF THE INSPECTION EPA Region 6 inspector Matthew Allen arrived at the Contango Resources, LLC / Fanny Lease (EPA ID No.

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: FRS Number: Identification/Permit Number: 03/11/2022 Water NPDES Double M Properties Legacy at Sierra Vista 0.43-miles West of Jubilee Blvd on New Mexico State Road 6 (SR-6) Los Lunas, New Mexico 4400 Alameda Blvd.