SUBJECT: FROM: THRU: TO: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 CLEAN AIR ACT INSPECTION REPORT MacroSource, LLC - Creve Coeur, Creve Coeur, Illinois Charles Hall, Environmental Engineer AECAB (MN-OH) Brian Dickens, Section Chief AECAB (MN-OH) File, MacroSource, LLC - Creve Coeur, Creve Coeur, Illinois BASIC INFORMATION Facility Name: MacroSource, LLC - Creve Coeur, Facility Location: 1139 Wesley Road, Creve Coeur, Illinois Date of Inspection: 25 July 2023 EPA Inspectors: 1.

CWA COMPLIANCE EVALUATION INSPECTION REPORT U.S.

U.S.

EPA REGION 5 Enforcement and Compliance Assurance Division INSPECTION REPORT Inspection Entry Date/Time Inspection Exit Date/Time Weather Media Statute(s)/Program(s) Type of Inspection May 31, 2024, 12:05 p.m.

REPORT OF COMPLIANCE EVALUATION INSPECTION AT Leon Water Supply 104 West 1st Street Leon, Iowa 50144 Public Water Supply ID: IA2742076 August 19, 2025 BY U.S.

Deseret Generation - Bonanza Power Plant Full Compliance Evaluation (FCE) Off-Site Clean Air Act (CAA) Inspection Inspection Date: September 8, 2021 Inspection Report Date: September 20, 2021 EPA Representatives: Michael Stovern Tribal Representatives: N/A Company Representatives: Inspection Report Prepared By: Inspection Report Reviewed By: Last CAA Inspection: Tyler Esplin Michael Stovern Digitally signed by MICHAEL MICHAEL STOVERN STOVERN Date: 2022.01.20 09:05:37 -07'00' Scott Patefield SCOTT PATEFIELD August 27, 2019 Digitally signed by SCOTT PATEFIELD Date: 2022.01.19 16:06:32 -07'00' Applicable Rules: 40 C.F.R.

Operated by Targa Badlands, LLC - Junction Compressor Station Full Compliance Evaluation (FCE) On-Site Inspection Inspection Date: June 15, 2023 Inspection Report Date: August 1, 2023 EPA Representatives: Colin LeCortz, Environmental Scientist, US EPA Region 8 Bob Gallagher, Environmental Scientist, US EPA Region 8 Phil Meyers, EPA Inspector, US EPA NEIC Griffith Brown, US EPA Region 6 Tribal Representatives: None Company Representatives: Mitchell Anderson Adam Moore Inspection Report Prepared By: Colin LeCortz, Environmental Scientist, US EPA Region 8 Inspection Report Reviewed By: Last Inspection: Scott Patefield, Manager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch SCOTT PATEFIELD Digitally signed by SCOTT PATEFIELD Date: 2023.08.14 14:08:57 -06'00' August 18, 2020 Operating Status: Operating Applicable Requirements: 40 CFR Part 60, Subpart JJJJ: Standards of Performance for New Stationary Spark Ignition Internal Combustion Engines (NSPS JJJJ) 40 CFR Part 60, Subpart OOOO: Standards of Performance for Crude Oil and Natural Gas Facilities for Which Construction, Reconstruction or Modification Commenced After August 23, 2011 and on or before September 18, 2015 (NSPS OOOO) 40 CFR Part 63, Subpart HH) National Emission Standards for Hazardous Air Pollutants from Oil and Natural Gas Production Facilities (MACT HH) 40 CFR Part 63, Subpart ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines (MACT ZZZZ) Permit Number: V-TAT-000670-2015.00 Replaces Permit No.: NA Issue Date: December 30, 2019 Effective Date: December 30, 2019 Expiration Date: December 30, 2024 Facility Information and Emission Unit Identification 1 Parent Company Name: Mailing Address: Facility Contact: Facility Operator & Name: Facility Location: County, State: Reservation: Tribe: Responsible Official: SIC Code: AFS ID: Other CAA Permits: Targa Badlands, LLC (Targa) 1939 125th Avenue NW, Watford City, North Dakota Mitchell Anderson, Senior Environmental Specialist (701) 842-3315 Targa - Junction Compressor Station (Junction) Latitude 47.77241, Longitude -102.72766 McKenzie County, North Dakota Fort Berthold Indian Reservation Three Affiliated Tribes Dwayne Burks, VP Operations 1311 - Crude Petroleum and Natural Gas 38-053-00002 There are no other CAA permits for this facility. 58854 Enforcement History Targa was subject to a Consent Agreement and Final Order (Docket No.: CAA-08-2022-0002) for the following alleged violation of law at multiple Targa facilities based on EPA's field inspections on August 18, 2020: 1.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At Artistic Cleaners 109 Locust Street Dubuque, Iowa 52001 (563) 583-3544 EPA ID Number: IA0000140822 On May 17, 2022 By U.S.

REPORT OF COMPLIANCE SAMPLING INSPECTION (CSI) & INDUSTRIAL STORMWATER COMPLIANCE SAMPLING INSPECTION(CSI) AT CIRCLE D CORPORATION 613 NORTH ASH STREET HILLSBORO, KANSAS 67063 KANSAS PRETREATMENT PERMIT: KSP000034 BY U.S.

XTO Energy, Inc. - Various Well Pads and Facilities Located on Tribal Lands Partial Compliance Evaluation (PCE) On-Site Clean Air Act (CAA) Inspections Inspection Date(s): October 23 and 24, 2024 Inspection Report Date: December 27, 2024 EPA Representatives: Katelyn Bergl, US EPA Region 8, Clean Air Act Inspector Youn Joo Kim, US EPA Region 8, Clean Air Act Inspector Taylor Waanders, US EPA, Clean Air Act Inspector Tribal Representatives: Dwight Bruce, MHA Energy Company Representatives: None Inspection Report Prepared By: Katelyn Bergl, US EPA Region 8, Clean Air Act Inspector Youn Joo Kim, US EPA Region 8, Clean Air Act Inspector Inspection Report Reviewed By: Scott Patefield, Manager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch SCOTT PATEFIELD Date: 2024.12.27 15:52:05 -07'00' Digitally signed by SCOTT PATEFIELD Applicable Rules: 40 C.F.R Part 49, Subpart K - Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa and Arikara Nation), North Dakota (Fort Berthold FIP) 40 C.F.R.

REPORT OF COMPLIANCE SAMPLING INSPECTION (CSI) & INDUSTRIAL STORMWATER COMPLIANCE EVALUATION INSPECTION (CEI) AT Nestle Purina Petcare 22450 State Hwy Y Bloomfield, MO 63825 NPDES NO: MO0101788 September 24-25, 2024 BY U.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At Univar Solutions USA Inc1 [sic]. 7710 Polk Street Saint Louis, Missouri 63111 EPA ID Number: MOD031005341 On April 6, 2022 By U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION AT LAKE CITY ARMY AMMUNITION PLANT 25201 East 78 Highway Independence, Missouri 64056 (816) 796-5213 RCRA EPA ID Number: MO4213820489 ON September 24 - 25, 2024 BY U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At SIEGWERK USA COMPANY 3535 SW 56th Street Des Moines, Iowa 50321 515-471-2193 EPA ID Number: IAR000007377 On February 19, 2025 By TOEROEK ASSOCIATES, INC.

Pretreatment Audit Report City of Worland WY-0020176 Worland, Wyoming April 25, 2022 to April 29, 2022 Prepared by: Al Garcia, Pretreatment Coordinator U.S.