UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 3 Four Penn Center 1600 JFK Blvd.

Report Title: Inspection Date(s): Regulatory Program(s): Clean Air Act Inspection of Evonik 08/16/2021 Title V Company Name: Facility Name: Facility Location: Latitude: County/Parish: Evonik Corporation Evonik Corporation 1200 W.

CLEAN WATER ACT COMPLIANCE INSPECTION REPORT for Name of Facility: Dominion - Materials and Metering Services Center Facility Address: 4307 Castlewood Road, Richmond, VA 23234 Mailing Address: 4307 Castlewood Road, Richmond, VA 23234 Report Prepared on: 1/09/2025 Date Report Final as of: Date Stephen Digitally signed by Stephen Clark By: Clark Date: 2025.01.09 11:48:49 -07'00' Environmental Scientist (ERG) Signature MARK Digitally signed by MARK ZOLANDZ ZOLANDZ By: Date: 2025.01.10 10:56:38 -05'00' Signature , , EPA General Information Type of Inspection: Owner: Operator: Permittee: NPDES Permit No: NPDES Permit Effective Date: NPDES Permit Expiration Date: Receiving Water and/or MS4: Latitude and Longitude: Industrial Stormwater Virginia Electric and Power Company DBA Dominion Energy Virginia Dominion Energy Virginia Dominion Energy Virginia VA0087734 November 1, 2020 (modified October 24, 2023) October 31, 2025 Grindall Creek, James River Basin 37.46726, -77.44613 On-Site Facility Inspection Overview On November 19, 2024, a contractor for the U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III Four Penn Center - 1600 JFK Blvd Philadelphia, Pennsylvania 19103-2029 Report Title: Clean Water Act Compliance Inspection Report Inspection Date(s): 06/26/2023 Regulatory Program(s): National Pollutant Discharge Elimination System (NPDES) Type of Activity: Municipal Wastewater Facility Name: Rustic Hills Subdivision Permittee(s): Marshall County Sewerage District Facility Address: Rustic Drive, Moundsville, WV 26041 Latitude: 39.86612 Longitude: -80.67456 Permit Number: WV0081612 NAICS Code: 221320 SIC: 4952 Receiving Waters: Spoon Hollow Tributary to Grave Creek Unique Project #: 3E23WN106A Facility Representative(s): Point of Contact Joseph Hickman, District Manager Phone: (304) 845-8140 Email: Kenny Whorton, Operator Phone: (304) 312-0499 Email: MCSDistrict@outlook.com hpexcavating@yahoo.com EPA Inspectors: Monica Crosby, USEPA Region 3 Phone: (410) 305-2930 Email: Allison Gieda, USEPA Region 3 Phone: (215) 814-0232 Email: Michael Lukowich, USEPA NEIC Phone: (303) 462-9312 Email: Alexandra Flevarakis, USEPA NEIC Phone: (303) 462-9299 Email: Crosby.Monica@epa.gov Gieda.Allison.epa.gov Lukowich.Michael@epa.gov Flevarakis.Alexandra@epa.gov State/Local Inspectors: Christopher Dudek, West Virginia Department of Environmental Protection (WVDEP) Phone: (304) 238-1220 Email: Christopher.t.dudek@wv.gov Report Preparer Signature/Date MONICA CROSBY Digitally signed by MONICA CROSBY Date: 2023.08.23 13:03:25 -04'00' Monica Crosby, Inspector U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III Four Penn Center - 1600 JFK Blvd Philadelphia, Pennsylvania 19103-2029 Report Title: Clean Water Act Compliance Inspection Report Inspection Date(s): 06/26/2023 Regulatory Program(s): National Pollutant Discharge Elimination System (NPDES) Type of Activity: Municipal Wastewater Facility Name: Sunnyside Estates Permittee(s): Marshall County Sewerage District Facility Address: Emerald Court, Wheeling, WV 26003 Latitude: 40.02077 Longitude: -80.69180 Permit Number: WV0081612 NAICS Code: 221320 SIC: 4952 Receiving Waters: Bull Run/Jakes Run Unique Project #: 3E23WN107A Facility Representative(s): Point of Contact Joseph Hickman, District Manager Phone: (304) 845-8140 Kenny Whorton, Operator Phone: (304) 312-0499 Email: Email: MCSDistrict@outlook.com hpexcavating@yahoo.com EPA Inspectors: Monica Crosby, USEPA Region 3 Phone: (410) 305-2930 Email: Allison Gieda, USEPA Region 3 Phone: (215) 814-0232 Email: Michael Lukowich, USEPA NEIC Phone: (303) 462-9312 Email: Alexandra Flevarakis, USEPA NEIC Phone: (303) 462-9299 Email: Crosby.Monica@epa.gov Gieda.Allison@epa.gov Lukowich.Michael@epa.gov Flevarakis.Alexandra@epa.gov State/Local Inspectors: Christopher Dudek, West Virginia Department of Environmental Protection (WVDEP) Phone: (304) 238-1220 Email: Christopher.t.dudek@wv.gov Report Preparer Signature/Date MONICA CROSBY Digitally signed by MONICA CROSBY Date: 2023.08.23 11:39:11 -04'00' Monica Crosby, Inspector U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, IL 60604-3590 ELECTRONIC MAIL DELIVERY RECEIPT REQUESTED Mr.

July 26, 2024 ELECTRONIC MAIL DELIVERY RECEIPT REQUESTED Noel Cornwell Owner Accu-Labs Inc. 3433 West 48th Place Chicago, Illinois 60632 noel@acculabsinc.com Re: Notice of Potential Violation and Opportunity to Confer Notice of Intent to File Civil Administrative Complaint Against Accu-Labs Inc.

ELECTRONIC MAIL DELIVERY RECEIPT REQUESTED Bryan Hill Environmental, Health, and Safety Manager MNP Corporation 44225 Utica Road Utica, Michigan 48317 Bryan.Hill@mnp.com Re: Notice of Violations MNP Corporation Plant 2 1524 Fourteen Mile Road Madison Heights, Michigan 48071 EPA Identification No.: MIK529539876 Dear Bryan Hill: On April 2, 2025, the U.S.

RCRA Inspection Report 1) Inspector and Author of Report Laurie Benton DiGaetano, Environmental Engineer RCRA Enforcement Section Chemical Safety and Land Enforcement Branch Enforcement and Compliance Assurance Division U.S.

RCRA Inspection Report 1) Inspector and Author of Report Hctor M.

May 12, 2025 VIA EMAIL ONLY Mr.

May 12, 2025 VIA EMAIL ONLY Mr.

EOG Resources, Inc. - Various Well Pads and Facilities Partial Compliance Evaluation (PCE) On-Site Clean Air Act (CAA) Inspections Inspection Date(s): October 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 Region 8 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: Applicable Rules: Scott Patefield, Manager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch SCOTT PATEFIELD Date: 2024.12.27 15:06:44 -07'00' Digitally signed by SCOTT PATEFIELD 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 Part 60, Subpart OOOOb - Standards of Performance for Crude Oil and Natural Gas Facilities for Which Construction, Modification or Reconstruction Commenced After December 6, 2022 (NSPS OOOOb) Compliance Assistance None Enforcement History EOG Resources, Inc.

Compliance Evaluation Inspection Report Harris Oil and Propane June 2023 Submitted to: U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, IL 60604-3590 JAN 2 9 2020 REPLY TO THE ATTENTION OF CERTIFIED MAIL RETURN RECEIPT REQUESTED David W.