UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270-2102 July 6, 2023 TRANSMITTED VIA E-MAIL Honorable Curtis Cornelius Mayor of Little Elm 100 West Eldorado Parkway Little Elm, Texas 75068 ccornelious@littleelm.org Re: Administrative Order; Docket Number: CWA-06-2023-1753 Town of Little Elm TPDES Permit Number: TX0053783 Dear Mayor Cornelius: Enclosed is an Administrative Order (AO) issued to the Town of Little Elm, for violations of the Clean Water Act (CWA) (33 U.S.C. 1251 et seq.).

REGION 6 DA LLAS, TX 75270 March 26, 2024 TRANSMITTED VIA E-MAIL The Honorable Judy Cochran Mayor of Livingston 200 West Church Street Livingston, Texas 77351 judybcochran@gmail.com Administrative Order; Docket Number: CWA-06-2024-1740 City of Livingston TPDES Permit Number: TX0024163 Dear Mayor Cochran: Enclosed is an Administrative Order (AO) issued to the City of Livingston, 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 Matthew Allen Inspection Date 10/15/2024 Operator Representative Park WM Park WM Inventory ID OS2440000 P.O.

Inspector Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Matthew Allen Inspection Date 11/12/2024 Time 12:00 Operator Representative Bandwheel Production Company, LLC Operator Info Bandwheel Production Company, LLC P.O.

Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Inspector Matthew Allen Inspection Date 12/17/2024 Time 14:00 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.

Inspector Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Matthew Allen Inspection Date 04/30/2025 Time 08:45 Operator Representative CapturePoint, LLC Operator Info CapturePoint, LLC 1101 Central Expwy S., Suite 150 Allen, TX 75013 Phone: 832-300-8221 Inventory ID API Well No Lease Name Well ID OS0508000 North Burbank Unit 82-W6 Location SW 35 27N 05E Status Inactive Well Type Enhanced Recovery Latitude 36.774004 Longitude -96.737961 Inspection Plugging Witnessed Reason Responsible Company at CapturePoint, LLC Time of Inspection Inspect No.

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 07/21/2025 Water Clean Water Act-National Pollution Discharge Elimination System (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: Novy Oil and Gas Inc.

July 29, 2025 TRANSMITTED VIA EMAIL Amanda Saijis, SEMS Coordinator Walter Oil & Gas Corporation 1100 Louisiana, Suite 200 Houston, Texas 77002 asaijas@walteroil.com Re: Notice of Potential Violation and Opportunity to Confer NPDES Permit: GMG290129 Dear Ms.

Inspector Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Matthew Allen Inspection Date 04/27/2026 Time 09:45 Operator Representative McCann Resources, Inc Operator Info McCann Resources, Inc 1613 West 6th Street Bartlesville, OK 740033404 Phone: 918-337-4747 Inventory ID API Well No Lease Name Well ID OS5929000 Whtimire 11-B Location NE 04 27N 11E Status Inactive Well Type Enhanced Recovery Latitude 36.847932 Longitude -96.123611 Inspection Requested By Compliance Reason Staff Responsible Company at McCann Resources, Inc Time of Inspection Inspect No.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270-2102 September 23, 2021 TRANSMITTED VIA EMAIL Mr.

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Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 05/16/2023 Water Clean Water Act - National Pollution Discharge Elimination System (NPDES) - Brine Program Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Unknown Unknown (Pipeline Complaint) 34.1814496, -97.5324023 Healdton, Oklahoma Unknown Unknown Carter County Unknown Unknown Unknown Unknown FRS Number: EPA Identification Number: Media Identifier Number: NAICS: SIC: n/a OKU002169 n/a 211111 1311 Personnel participating in inspection: Jeanne Eckhart U.S.

Region6Enforcement&ComplianceAssuranceDivision INSPECTIONREPORT InspectionDate(s): 03/09/2022 MediaProgram: Water RegulatoryProgram(s) SDWAPWS CompanyName: MustangSUD FacilityName: MustangSUD FacilityPhysicalLocation: 7985FM2931 (city,state,zipcode) Aubrey,TX76227 Mailingaddress: 7985FM2931 (city,state,zipcode) Aubrey,TX76227 County/Parish: DentonCounty FacilityPhoneNumber 9404409561 FacilityContact: DustinBlank WaterOperationsManager dblank@mustangwater.com FRSNumber: Identification/PermitNumber: MediaIdentifierNumber: TX0610036 NAICS: SIC: Personnelparticipatingininspection: JessicaMoore ECDWR LeadInspector SamiDoupnik ECDWR Inspector DustinBlank MustangSUD WaterOperationsManager RodneySeaver MustangSUD AssistantOperationsManager RaunCarter MustangSUD LeadOperator EPALeadInspector Signature/Date Digitally signed by JESSICA JESSICA MOORE MOORE Date: 2022.04.29 09:36:59 -05'00' JessicaMoore JessicaMoore Date Supervisor Signature/Date Digitally signed by CURRY JONES CURRY JONES Date: 2022.04.25 12:43:06 -05'00' 4/25/2022 CurryJones CurryJones Date 6ENFORM019R8.2(02/12/2020) 1 MustangSUD/TX0610036 InspectionDate03/09/2022 2 MustangSUD/TX0610036 InspectionDate03/09/2022 SectionI-INTRODUCTION PURPOSEOFTHEINSPECTION EPARegion6inspectorsJessicaMooreandSamiDoupnikarrivedattheMustangSUDat8:00amon 03/09/2022foranannouncedinspection.MustangSUDagreedtoparticipateinatrainingexercise conductedbytheNationalEnforcementInvestigationCenter(NEIC)andEPARegion6forroughly20 inspectorsfromOklahoma,Texas,NewMexico,Louisiana,andRegion6.WemetwithDustinBlank, OperationsManager,RodneySeaver,AssistantOperationsManager,andRuanCarter,LeadOperations.

Inspector Inspection Due Operator Info Well Inspection Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas, Texas 75270 Matthew Allen Inspection Date 01/30/2024 2022-11-24T00:00:00Z Operator Representative White White Palace Energy, LLC Inventory ID OS4123000 16210 Wind Hill Circle Skiatook, OK 74070 Phone: 918-396-7396 API Well No Lease Name Well ID STUART 63 Time 12:20 Palace Energy, LLC Location NW 32 23N 11E Status Active Well Type Enhanced Recovery Latitude 36.427788 Longitude -96.153692 Inspection Reason Routine Responsible Company at Time White Palace Energy, LLC of Inspection Inspect No.

EPA Inspection Report - Page 1 of 6 Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 03/15/2024 Water Clean Water Act Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: ArklaTx Operating Company, Inc.