UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Howmet Aerospace, Barberton, Ohio Tess Russell, Environmental Engineer AECAB (MN/OH) Brian Dickens, Section Supervisor AECAB (MN/OH) File BASIC INFORMATION Facility Name: Howmet Aerospace Facility Location: 842 Norton Avenue, Barberton, Ohio 44203 Date of Inspection: March 29, 2023 EPA Inspector(s): 1.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At MIDWEST METAL PRODUCTS 800 66th Avenue SW Cedar Rapids, Iowa 52404 319-366-6264 ext. 174 EPA ID Number: IAD042192401 On May 23, 2022 By TOEROEK ASSOCIATES, INC.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At Construction Trailer Specialists, Inc. 2535 Rose Parkway Sikeston, MO 63801-7193 (816) 776-3005 EPA ID Number: MOR000038661 On April 23, 2024 By U.S.

REPORT OF INDUSTRIAL USER COMPLIANCE SAMPLING INSPECTION AT Extrusions Inc. 2401 S.

REPORT OF COMPLIANCE SAMPLING INSPECTION AT Bonner Springs Wastewater Treatment Plant 12021 Kaw Drive Bonner Springs, Kansas 66102 NPDES Permit # KS0082881 ON May 13, 2024 to May 16, 2024 BY U.S.

Simcoe, LLC - Miera Central Delivery Point Full Compliance Evaluation (FCE) On-Site Inspection Inspection Date: June 28, 2022 Inspection Report Date: August 23, 2022 EPA Representatives: Colin Schwartz, Environmental Scientist, US EPA Region 8 Alex North, Environmental Scientist, US EPA Region 8 Youn Joo Kim, Environmental Scientist, US EPA Region 8 Katelyn Bergl, Environmental Scientist, US EPA Region 8 Tribal Representatives: David Heermance Andrew Switzer Merideth Breeden Company Representatives: Pat Atencio Inspection Report Prepared By: Colin Schwartz, 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 May 16, 2018 Digitally signed by SCOTT SCOTT PATEFIELD PATEFIELD Date: 2022.08.15 15:52:46 -06'00' Operating Status: Operating Applicable Requirements: SMNSR- Tribal Minor New Source Review 40 CFR Part 60, Subpart JJJJ: Standards of Performance for New Stationary Sources (NSPS JJJJ) 40 CFR Part 63, Subpart ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines (MACT ZZZZ) 40 CFR Part 63, Subpart HH: National Emissions Standards for Hazardous Pollutants from Oil and Natural Gas Production Facilities (MACT HH- area source) Permit Number: SMNSR-SU-000039-2021.002 Replaces Permit: SMNSR-SU-000039-2012.001 Issue Date: January 11, 2022 Effective Date: January 11, 2022 Expiration Date: None 1 Facility Information and Emission Unit Identification Parent Company Name: Mailing Address: Facility Contact: Facility Operator & Name: Facility Location: Simcoe, LLC 1199 Main Avenue, Suite 101, Durango, Colorado 81301 Julie Best, Environmental Manager (970) 822-8924 Simcoe, LLC - Miera Central Delivery Point (Miera) Latitude 37.19886, Longitude -107.740183 County, State: Reservation: Tribe: Responsible Official: SIC Code: AFS ID: Other CAA Permits: La Plata, Colorado Southern Ute Indian Reservation Southern Ute Indian Tribe Erin Dunman 1311 - Crude Petroleum and Natural Gas 08-067-U0043 There are no other CAA permits for this facility.

SENT ELECTRONIC MAIL RECEIPT CONFIRMATION REQUESTED July 1, 2025 Brad Appleton bappleton@bbbend.com Fuel Plaza - Blackbird Bend Casino 17223 W 210 Street Onawa, Iowa 51040 RE: Underground Storage Tank Notice of Deficiency and Potential Violations Fuel Plaza - Blackbird Bend Casino EPA Identification Number: EPA-TrUSTD-2304 Dear Mr.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At ARNOLD MOTOR SUPPLY 120 South Walnut Ames, IA 50010 515-222-2520 EPA ID Number: IAD042192005 On December 15-16, 2021 By U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At Emerald Transformer PPM, LLC 2474 North Highway 169 Coffeyville, Kansas 67337 620-251-6380 EPA Identification Number: KSD981506025 On July 28, 29, and 30, 2021 By U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At TPI IOWA LLC. 2300 N 33rd Avenue E Newton, Iowa 50208 (641) 275-8608 EPA ID Number: IAR000510156 On March 8, 2022 By TOEROEK ASSOCIATES, INC.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 8 1595 Wynkoop Street Denver, CO 80202-1129 Phone 800-227-8917 www.epa.gov/region08 Ref: Region 8, Montana Office CERTIFIED MAIL RETURN RECEIPT REQUESTED Chris Adler, Mayor City of Ronan 207 Main Street SW, Suite A Ronan, Montana 59864 Re: Inspection Report for Ronan Wastewater Treatment Facility, MT0021474 Dear Mayor Adler: On June 14, 2022, representatives of the U.S.

U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 8 1595 Wynkoop Street Denver, CO 80202-1129 Phone 800-227-8917 www.epa.gov/region8 Ref: 8WD-SDB June 14, 2023 SENT VIA EMAIL Mr.

2/19/26, 3:42 PM Mail - Colleen Zimmerman - Outlook Outlook 2025-EPA-06516-Final disposition From Jackson.Clarice@epa.gov <Jackson.Clarice@epa.gov> Date Wed 2/11/2026 4:51 PM To Colleen Zimmerman <czimmerman@peer.org> Cc kang.olivia@epa.gov <kang.olivia@epa.gov> 1 attachment (260 KB) 2025-EPA-06516 Final Response.pdf; Dear Colleen Zimmerman: Please see attached letter regarding the final disposition for FOIA number 2025-EPA-06516.

version 9.27.2022 HFC Import Inspection Worksheet Insp.