Koda Resources - Antelope Flats/Sand Wash Compressor Station Full Compliance Evaluation (FCE) On-Site Clean Air Act (CAA) Inspection Inspection Date: September 18, 2024 Inspection Report Date: November 25, 2024 EPA Representatives: Michael Stovern, Colin Schwartz, Chris Andrade, James Floyd Tribal Representatives: Lonnie Favel, Alverna Nelson Company Representatives: Jim Gress, Rex Anderson, Eloy Torres, Grizz Oleen, Kelly Jensen, Ryan Watkins Inspection Report Prepared By: Michael Stovern Inspection Report Reviewed By: Last CAA Inspection: Scott Patefield SCOTT PATEFIELD May 10, 2021 Digitally signed by SCOTT PATEFIELD Date: 2024.11.25 10:06:33 -07'00' Applicable Rules: Synthetic Minor NSR Permit (Syn Minor permit) 40 C.F.R.

REPORT OF RCRA COMPLIANCE EVALUATION INSPECTION At National Carwash Solutions 1500 SE 37th St.

REPORT OF COMPLIANCE EVALUATION INSPECTION (INDUSTRIAL STORMWATER) Omaha Airport Authority- Millard Airport 12916 Millard Airport Plaza, Omaha, Nebraska 68118 Mailing Address 4501 Abbott Dr., Suite 2300, Omaha, Nebraska 68110 Authorization Number: ISW-202200455 BY U.S.

REPORT OF PRETREATMENT COMPLIANCE INSPECTION (PCI) City of Topeka, Kansas 1115 Poplar Street Topeka, Kansas 66616 NPDES Permit No.: KS0042722 and KS0042714 BY U.S.

VIA ELECTRONIC TRANSMITTAL RETURN RECEIPT REQUESTED Email: fitzpatrick.timmery@cleanharbors.com Timmery Fitzpatrick Clean Harbors Environmental Services, Inc.

Addendum to the Evraz ESI Report January 13, 2024 The EPA conducted a National Pollutant Discharge Elimination System (NPDES) Evaluation Sampling Inspection (ESI) at the Colorado Fuel and Iron (CF&I) Steel, L.P. dba Evraz Rocky Mountain Steel facility (Evraz) located at 2100 South Freeway, Pueblo, CO 81004 on the following five sampling dates: September 1, 2022; September 6, 2022; November 1, 2022; November 2, 2022; and February 1, 2023.

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 SENT VIA EMAIL DIGITAL READ RECEIPT REQUESTED Paul Augare, Facility Manager Blackfeet Boarding Dormitories Paul.augare@bia.gov Re: Inspection Report for Blackfeet Boarding Dormitories Wastewater Treatment Facility, NPDES Permit #MTU000695 Dear Mr.

NPDES Inspection Report - Wastewater Treatment Facility National Database Information Inspection Date: September 10, 2024 Inspection Type: CEI - Wastewater Treatment Facility Entry/Exit Time: NPDES ID Number: Opening Conference: 8:00 a.m. - 9:00 a.m.

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 28, 2023 SENT VIA EMAIL Mr.

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 November 21, 2023 SENT VIA EMAIL Green River Bar c/o Nannette McKeough P.

Ref: 8WD-SDR August 19, 2024 SENT VIA EMAIL James Ramage, Administrator O Bar B Improvement & Service District P.O.

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 May 7, 2023 SENT VIA EMAIL Mr.

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 SENT VIA EMAIL Ms.

Intermittent Stream 1 2 ---- LOT 2 2 3 LOT 3 LOT 4 LOT 56 LOT 6 LOT 7 EPA Delphi Solar Field 01/05/2024 EPA Inspection Murray Road Residential Development 20 Murray Road Ashburnham, MA 01/05/2024 Damian Bednarz Observed culvert Observed stream blockage Observed stormwater flowpath Lot / parcel boundary Stream obtained from National Wetland Inventory Observed perimeter controls N < 1 ED_019088A_00004014-00001 South Ashburnham 01/05/2024 EPA Inspection Murray Road Residential Development 20 Murray Road Ashburnham, MA 01/05/2024 Damian Bednarz EPA 2 15.