UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 4 ATLANTA FEDERAL CENTER 61 FORSYTH STREET ATLANTA, GEORGIA 30303-8960 ELECTRONIC MAIL CONFIRMATION OF RECEIPT EMAIL REQUESTED Mr.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 4 ATLANTA FEDERAL CENTER 61 FORSYTH STREET ATLANTA, GEORGIA 30303-8960 ELECTRONIC MAIL CONFIRMATION OF RECEIPT EMAIL REQUESTED Bradley Buehler General Manager Purac America d/b/a Corbion 5150 North Royal Atlanta Drive Tucker, Georgia 30084 SUBJ: Opportunity to Show Cause Resource Conservation Recovery Act (RCRA) Compliance Evaluation Inspection (CEI) Corbion, EPA ID: GAR000076398 Dear Bradley Buehler: On March 14, 2023, the U.S.

RCRA Inspection Report 1) Inspector and Author of Report Robert Nakamoto, P.E., CHMM Environmental Engineer Phone: 404-562-9341 Nakamoto.Robert@epa.gov U.S.

ATTACHMENT C Campbell Sand & Gravel, Co.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 DATE: SUBJECT: FROM: THRU: TO: September 29, 2021 CLEAN AIR ACT INSPECTION REPORT BlueScope Buildings North America, 273 Water St, Evansville, WI 53536 Karina Kuc AECAB (IL/IN) Nathan Frank, Section Chief AECAB (IL/IN) File BASIC INFORMATION Facility Name: BlueScope Buildings North America (BlueScope) Facility Location: 273 Water St, Evansville, WI 53536 Date of Inspection: August 26, 2021 EPA Inspector(s): 1.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 DATE: SUBJECT: FROM: THRU: TO: April 16, 2021 CLEAN AIR ACT INSPECTION REPORT CE Niehoff & Co., Evanston, IL Karyn DeFranco, Inspector AECAB (MN/OH) Brian Dickens, Section Chief AECAB (MN/OH) File BASIC INFORMATION Facility Name: CE Niehoff & Co.

MEMORANDUM SUBJECT: CLEAN AIR ACT INSPECTION REPORT Great Lakes Gas Transmission Station #5, Cloquet, Minnesota FROM: Emma Leeds, Environmental Engineer AECAB (IL/IN) THRU: Nathan Frank, Section Supervisor AECAB (IL/IN) TO: File BASIC INFORMATION Facility Name: Great Lakes Gas Transmission Station #5 Facility Location: 3471 Brandon Rd., Cloquet, Minnesota 55720.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Green Bay Dressed Beef, LLC - East River, Green Bay, Wisconsin Vicky Mei, Environmental Engineer AECAB (IL/IN) Nathan Frank, Section Supervisor AECAB (IL/IN) File BASIC INFORMATION Facility Name: Green Bay Dressed Beef, LLC - East River Facility Location: 800 University Avenue, Green Bay, Wisconsin 54302 Date of Virtual Inspection: September 20, 2022 Date of On-Site Inspection: September 21, 2022 EPA Inspector(s): 1.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Infinity Natural Resources (INR) Goebeler Well Pad Victoria Nelson, Environmental Engineer AECAB (MI/WI) Sarah Marshall, Section Supervisor AECAB (MI/WI) File BASIC INFORMATION Facility Name: Infinity Natural Resources (INR) Goebeler Well Pad Facility Location: 150 Spring Rd NW Minerva, Ohio 44657 (40.643901, -81.098198) Date of Inspection: August 29, 2022 EPA Inspectors: 1.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT La-Co Industries, Inc., Elk Grove Village, Illinois Linda H.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Maeder Brothers Quality Wood Pellets, Weidman, MI Valeria Apolinario, Environmental Engineer AECAB (MN/OH) Brian Dickens, Section Supervisor AECAB (MN/OH) File BASIC INFORMATION Facility Name: Maeder Brothers Quality Wood Pellets, Weidman, MI Facility Location: 5180 W.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Mexichem Specialty Resins, Inc., Henry, Illinois Natalie Schulz, Environmental Engineer AECAB (MN/OH) Brian Dickens, Section Supervisor AECAB (MN/OH) File BASIC INFORMATION Facility Name: Mexichem Specialty Resins, Inc.

MEMORANDUM SUBJECT: CLEAN AIR ACT INSPECTION REPORT OmniSource fka Toledo Shredding LLC, Toledo, Ohio FROM: David Sutlin, Environmental Engineer AECAB (MN/OH) THRU: Brian Dickens, Section Supervisor AECAB (MN/OH) TO: File BASIC INFORMATION Facility Name: OmniSource, LLC fka Toledo Shredding, LLC Facility Location: 275 Millard Ave., Toledo, Ohio 43605 Date of Inspection: April 1, 2025 EPA Inspector(s): 1.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 DATE: SUBJECT: FROM: THRU: TO: See Date of Section Chief Signature Below CLEAN AIR ACT INSPECTION REPORT Orion Industries, Chicago, Illinois Sasha Letuchy, Environmental Engineer AECAB (MI/WI) Sarah Marshall, Section Chief AECAB (MI/WI) File BASIC INFORMATION Facility Name: Orion Industries Facility Location: 5492 N.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 DATE: SUBJECT: FROM: THRU: TO: June 16, 2021 CLEAN AIR ACT INSPECTION REPORT Quad Cities Landfill Phase IV, Milan, Illinois Emma Leeds, Environmental Engineer AECAB (IL/IN) Linda Rosen, Acting Section Chief AECAB (IL/IN) File BASIC INFORMATION Facility Name: Quad Cities Landfill Phase IV Facility Location: 13606 Knoxville Road, Milan, Illinois 61264 Date of Inspection: Virtual Opening Conference - May 4, 2021 On-site Inspection - May 11, 2021 Closing Conference - May 11, 2021 EPA Inspector(s): 1.