May 12, 2025 VIA EMAIL ONLY Mr.

Crestwood Equity Partners, LP Arrow Pipeline, LLC - 1, 2, 3, 4, 5 and 6 Compressor Stations Full Compliance Evaluation (FCE) On-Site Inspection Inspection Date: Inspection Report Date: EPA Representatives: June 15, 2023 September 6, 2023 Youn Joo Kim, Environmental Scientist, US EPA Region 8 Katelyn Bergl, Environmental Scientist, US EPA Region 8 Tribal Representatives: Company Representatives: Inspection Report Prepared By: None Josh Swann, Environmental Construction Manager Youn Joo Kim, Environmental Scientist, US EPA Region 8 Lindsey Barnes, Scientist, US EPA Region 8 Inspection Report Reviewed By: Last Inspection: Operating Status: Scott Patefield, Manager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch SCOTT PATEFIELD Digitally signed by SCOTT PATEFIELD Date: 2023.09.21 09:39:26 -06'00' June 16, 2016 Operating Applicable Requirements: Title V, Part 71 Operating Permit #V-TAT-0003672015.01 Issued July 20, 2021 Synthetic Minor New Source Review Permit Issued August 25, 2020 40 CFR Part 60, Subpart JJJJ-Standards of Performance for Stationary Spark Ignition Internal Combustion Engines 40 CFR Part 60, Subpart OOOOA-Standards of Performance for Crude Oil and Natural Gas Facilities for which Construction, Modification or Reconstruction Commenced after September 18, 2015 40 CFR Part 63, Subpart ZZZZ- National Emission Standards for Hazardous Air Pollutants from Reciprocating Internal Combustion Engines Permit Number: V-TAT-00367-2015.01 Replaces Permit: V-TAT-00367-2015.00 Issue Date: July 20, 2021 Effective Date: May 10, 2021 1 Expiration Date: May 10, 2026 Facility Information and Emission Unit Identification Parent Company Name: Mailing Address: Facility Contact: Facility Operator & Name: Facility Location: County, State: Reservation: Tribe: Responsible Official: SIC Code: ICIS ID: Other CAA Permits: Crestwood Equity Partners, LP 811 Main Street, Suite 3400 Houston, Texas 77002 Patricia Whitenight, Air Quality Manager Arrow Pipeline, LLC: Station 1, 2, 3, 4, 5 and 6 Compressor Stations Station 1 - Latitude 47.759800N, Longitude -102.725922W Station 2 - Latitude 47.723781N, Longitude -102.694333W Station 3 - Latitude 47.729061N, Longitude -102.590211 W Station 4 - Latitude 47.667064N, Longitude -102.545058W Station 5 - Latitude 47.666366N, Longitude -102.72803W Station 6 - Latitude 47.730086N, Longitude -102.356544W McKenzie and Dunn Counties, North Dakota Fort Berthold Indian Reservation MHA Nation (Three Affiliated Tribes) Jeff Stovall, Senior Vice President, Bakken Operations 4922- Pipeline Transportation of Natural Gas 4612- Crude Petroleum Pipelines Station 1- AIR 080000003805300124 Station 2- AIR 080000003805300125 Station 3- AIR 080000003802500045 Station 4- AIR 080000003802500046 Station 5- AIR 080000003802500047 Station 6- AIR 080003805321 There are no other CAA permits for this facility.

CLEAN AIR ACT (CAA) 112(r)(7) AND EMERGENCY PLANNING, COMMUNITY RIGHT-TO-KNOW ACT (EPCRA) 312 INSPECTION REPORT Salt Lake City Terminal Facility Name and Address: Salt Lake City Terminal 2825 West 500 South Salt Lake City, Utah 84101 Latitude, Longitude: 40.757933, -111.961357 Contact/Telephone: Sharanya Shanbhogue, EHS Manager (661) 440-6491 Mailing Address: Midstream Energy Partners, USA, LLC 9224 Tupman Road Tupman, California 93276 Date of Inspection: 09/12/2023 RMP EPA ID #: 1000 0023 7497 Program Level: 3 Covered Substances: Propane TRIFID #: NA NAICS: 42471 Petroleum Bulk Stations and Terminals # Employees at this location: 0 Normally unoccupied except for drivers INTRODUCTION This report presents the observations of the CAA section 112(r)(7) and EPCRA section 312 inspection conducted by EPA Region 8.

5/20/2024 TRANSMITTAL VIA EMAIL: Redd.Gashytewa@jacobs.com Redd Gashytewa Project Manager City of Gallup Wastewater Treatment Plant 800 Sweetwater Place Gallup, NM 87301 Re: Expedited Settlement Agreement (ESA) for Risk Management Program Findings and Proposed Penalty In the Matter of City of Gallup Wastewater Treatment Plant Docket No.

O ST4 PRO1 C.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270 April 27, 2020 TRANSMITTED VIA EMAIL: Zachary Craft, Counsel Baton Rouge Fractionators LLC, and Baton Rouge Propylene Concentrator LLC 2220 North River Road Port Allen, Louisiana 70767 zlcraft@eprod.com; and environmental@eprod.com Re: In the Matter of Enterprise Products Operating LLC Docket No.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270-2102 September 22, 2020 VIA EMAIL: jerry.lebold@basf.com Mr.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270 June 2, 2022 TRANSMITTAL VIA EMAIL: Alainna.Mire@cityofalex.com Ms.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Marathon Petroleum Corporation, Garyville, Louisiana Constantinos Loukeris, Environmental Engineer AECAB (MI/WI) Sarah Marshall, Section Supervisor AECAB (MI/WI) File BASIC INFORMATION Facility Name: Marathon Petroleum Corporation (MPC) Facility Location: 4663 W.

EPA Inspection Report - Page 1 of 5 Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 04/20/2022 Air Title V Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: MPLX/Pin Oak Terminal LLC Mt.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270 February 27, 2023 Chris Sanfilippo Texas Petroleum Investment Company 101 La Rue France, Suite 406 Lafayette, LA 70508 Sent via email: csanfilippo@txpetinv.com Re: Notice of Violation and Opportunity to Confer Dear Mr.

REGION 6 DA LLAS, TX 75270 September 4, 2024 TRANSMITTED VIA E-MAIL The Honorable Russell Humphrey Mayor of Huntsville 1212 Avenue M Huntsville, Texas 77340 rhumphrey@huntsvilletx.gov RE: Administrative Order; Docket Number: CWA-06-2024-1785 N.B.

October 16, 2024 TRANSMITTED VIA E-MAIL Mr.

REGION 6 DALLAS, TX 75270 March 26, 2026 TRANSMITTED VIA E-MAIL Emily Potts Cherokee County Rural Water District #9 P.O.

REGION 6 DALLAS, TX 75270 March 24, 2026 TRANSMITTED VIA E-MAIL Larry Underhill Washington County Rural Water District #7 P.O.