UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Strong Steel - Ferrous Processing & Trading Co., Detroit, Michigan Brittany Cobb, Environmental Engineer AECAB (MI/WI) Sarah Marshall, Section Supervisor AECAB (MI/WI) File BASIC INFORMATION Facility Name: Strong Steel - Ferrous Processing & Trading Co.

Inspection Entry Date/Time Inspection Exit Date/Time Weather Media Statute(s)/Program(s) Type of Inspection EPA Region 5 Enforcement and Compliance Assurance Division INDUSTRIAL USER PRETREATMENT SCREENING INSPECTION REPORT 1/13/2025 10:37 11:45 AM PM CT ET | Announced: Y N AM PM CT ET | Access Granted: Y N Water Clean Water Act, National Pollutant Discharge Elimination System (NPDES) Industrial User Screening Inspection (Pretreatment Direct Implementation) Facility or Site Name Facility/Site Physical Address City, State, Zip Code County/Borough/Parish Facility GPS Coordinates Mailing Address (If Different) City, State, Zip Code Owner (If Different from Facility) Operator (If Different from Owner) Address City, State, Zip Code Serviced by WWTP?

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN WATER ACT INSPECTION REPORT Calumet Specialty Products Partners, L.P., Burnham, Illinois Jason Hewitt, Life Scientist Water Enforcement Branch, Section 1 Molly Smith, Section Chief Water Enforcement Branch, Section 1 File BASIC INFORMATION Facility Name: Calumet Specialty Products Partners, L.P.

CLEAN WATER ACT INSPECTION REPORT U.S.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 7 11201 Renner Boulevard Lenexa, Kansas 66219 CERTIFIED MAIL RETURN RECEIPT REQUESTED Corporation Service Company Registered Agent for Heidelberg Materials US Cement LLC 505 5th Avenue, Suite 729 Des Moines, Iowa 50309 RE: Request for Information pursuant to Clean Water Act 308(a) Dear Registered Agent: On November 14-17, 2022, the U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At Clean Harbors Environmental Services, Inc. 2247 South Highway 71 Kimball, NE 69145 (308) 235-8260 EPA ID Number: NED981723513 On September 28 and 29, 2021 By U.S.

REPORT OF INDUSTRIAL USER COMPLIANCE SAMPLING INSPECTION AT Ernest Spencer Custom Coating 1510 N Davis Ottawa, KS 66067 KANSAS PRETREATMENT PERMIT: KSP000090 BY U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At BECTON DICKINSON AND COMPANY, HOLDREGE 1329 West Highway 6 Suite A Holdrege, NE 68949 (308) 995-6501 EPA Identification Number: NED047047543 On August 22, 2023 By U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At FEDEX FREIGHT OMAHA 3502 S. 11th Street Council Bluffs, Iowa 51501 (501) 317-9790 EPA ID Number: IAR000512574 On April 12, 2022 By TOEROEK ASSOCIATES, INC.

REPORT OF CONSTRUCTION STORM WATER INSPECTION Frontline Development Siouxland Splash Water Park 3820 Highway 75N Sioux City, Iowa 51108 NPDES GP2: IA 44218-43818 BY U.S.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At DUBOIS CHEMICALS 330 N 16th Avenue Eldridge, Iowa 52748 (563) 275-3452 EPA ID Number: IAR000008367 On February 14, 2023 By TOEROEK ASSOCIATES, INC.

REPORT OF CONCENTRATED ANIMAL FEEDING OPERATION INSPECTION At Two Rivers Cattle Feeding Co.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At SILGAN CONTAINERS MANUFACTURING CORPORATION 3591 Maple Drive Fort Dodge, Iowa 50501 (515) 955-1454 EPA RCRA ID No.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At EUROFINS SCIENTIFIC - NUTRITION ANALYSIS CENTER 2200 Rittenhouse Street Suite 175 Des Moines, Iowa 50321 (515) 265-1461 ext. 6904 EPA RCRA ID No.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 8 RESOURCE CONSERVATION AND RECOVERY ACT GENERAL INFORMATION Facility Name: Yellowtail Hydroelectric Power Plant and Maintenance Facility, U.S.