To give you some background information, Viessmann is a leading German/European company in the manufacturing of heating, industrial and refrigeration systems.

Esparza USEPA/6ECDWM Operator Environmental Engineer EPA Lead Inspector Signature/Date DAVID ESPARZA Date: 2025.10.02 11:55:15 -06'00' Digitally signed by DAVID ESPARZA David Esparza Date Supervisor Signature/Date ROBERTO BERNIER Date: 2025.10.02 13:57:00 -05'00' Digitally signed by ROBERTO BERNIER Roberto Bernier Date 6ENFORM-019-R9 (02/27/2025) 1 Section I - INTRODUCTION PURPOSE OF THE INSPECTION Laguna Development Corporation / Rio Puerco WWTP Permit No.

Campbell suggested we contact Alan Herin, who is the Environmental Lead for Energyneering Solutions, Inc.

Sincerely, Digitally signed by Prideaux, Prideaux, LisaKay Date: 2023.08.24 12:54:49 LisaKay -06'00' Lisa-kay Prideaux NPDES and Wetlands Enforcement Section Enforcement and Compliance Assurance Division Enclosures: 1) NPDES Wastewater Lagoon Inspection Report 2) Photo Log cc: Jeffrey Stiffarm, President, Gros Ventre and Assiniboine Tribes of the Fort Belknap Reservation (email) Ina Nez Perce, Environmental Director, Fort Belknap (email) Gene Talks Different, Water Plant Manager (email) Rob Adams, Indian Health Services (email) NPDES Wastewater Lagoon Inspection Report National Database Information Inspection Date: July 19, 2023 Inspection Type: CEI Entry/Exit Time: 11:00/11:30 NPDES ID Number: MTU000031 NAICS Code: 221300 Sewage Treatment Inspection ID: 202307_MTU000031 Facility Lead inspector and affiliation: Lisa-kay Prideaux / EPA Region 8 Montana Operations Office Facility Location Information Site/Facility Name & Location: Fort Belknap Mission Lagoons 47.979247N; -108.689604W Email Report to: Kasey Hastheeagle Director of Prairie Mountain Utilities Kasey.hastheeagle@ftbelknap.org Contact Information Facility Contacts: Person/Company meeting definition of "Operator" Authorized Official(s) Name(s)/Title Kasey Hastheeagle - Director of Prairie Mountain Utilities (present) Gene Talks Different - Water Plant Manager (present) Tyus Hammett - Water/Wastewater Operator in Training (present) Jeffrey Stiffarm - President (not present) Kasey Hastheeagle - Director of Prairie Mountain Utilities (present) Tribe Representative(s) Indian Health Service Representative(s) Rob Adams - Indian Health Services, Engineer (present) Permit Information Is the permit on site and available?

Staples leads a dynamic team whose mission is to support TXOGA's vast and diverse membership, which represents over 90% of Texas' crude oil and natural gas production, operates nearly 90% of the state's refining capacity, and is responsible for a vast majority of the state's pipeline network that reliably delivers resources to consumers throughout Texas, across our nation and around the world.

AUDIT REPORT CERTIFICATION: This is to certify that I, Peter Phillips, was the lead inspector at this facility and that I have verified the accuracy of the observations in this inspection report: Digitally signed by PETER PHILLIPS PETER PHILLIPS (Affiliate) (Affiliate) ______________________________D_a_t_e:_2_0_22_._11_._14_1_3_:1_2_:3_9_-_0_8'_00_'_______ Signature Date JAVIER MORALES Date: 2022.11.15 08:53:02 -08'00' Digitally signed by JAVIER MORALES __________________________________________________________ RMP Coordinator/Approval Date ERIN WILLIAMS Digitally signed by ERIN WILLIAMS Date: 2022.11.15 13:18:23 -08'00' __________________________________________________________ EPCRA Coordinator/Approval Date Jennifer A Sullivan Date: 2022.11.15 09:09:32 -08'00' Digitally signed by Jennifer A Sullivan __________________________________________________________ Land Enforcement Section Chief/Approval Date Page 4 of 4

This may lead to failure of the digester itself if not shored up (Photo 3). 4.

Harwood, Suite 1300 Dallas, Texas, 75201 Payne 918-345-2036 Paul Richardson Co-Owner Paul.Richardson@holyenergy.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: NA NA NA 211111 1311 Personnel participating in inspection: Michael Blaha EPA/Region 6 ECDW Matt Allen EPA/Region 6 ECDW John Waken START Contractor Enforcement Officer/Inspector Inspector Inspector EPA Lead Inspector Signature/Date Supervisor Signature/Date MATTHEW ALLEN Date: 2023.09.28 14:31:37 -05'00' Digitally signed by MATTHEW ALLEN Matthew Allen Date JEANNE ECKHART Date: 2023.09.28 14:47:20 -05'00' Digitally signed by JEANNE ECKHART Jeanne Eckhart Date 6ENFORM-019-R8.2 (02/12/2020) 1 Section I - INTRODUCTION Osage Pipe Line Company, LLC / CWA Inspection Date 08/16/2023 PURPOSE OF THE INSPECTION EPA Region 6 inspectors Michael Blaha and Matthew Allen, arrived at the Osage Pipe Line Company, LLC, N Norfolk Road bridge crossing (36.03895, -96.71417) at 8:15 AM on 8/16/2023 for an unannounced inspection.

AUDIT REPORT CERTIFICATION: This is to certify that I, Peter Phillips, was the lead inspector at this facility and that I have verified the accuracy of the observations in this inspection report: Digitally signed by PETER PHILLIPS PETER PHILLIPS (Affiliate) (Affiliate) ______________________________D_a_te_:_2_02_2_.1_1_.1_4_1_3_:1_3_:4_7_-0_8_'0_0_' _______ Signature Date Digitally signed by JAVIER JAVIER MORALES MORALES ______________________________D__a_t_e_: 2__0_2_2_.1_1_._1_5_0_9_:_0_3_:1__2_-_0_8_'0_0_' RMP Coordinator/Approval Date ERIN WILLIAMS Digitally signed by ERIN WILLIAMS Date: 2022.11.15 13:19:22 -08'00' __________________________________________________________ EPCRA Coordinator/Approval Date Jennifer A Sullivan Date: 2022.11.15 09:15:02 -08'00' Digitally signed by Jennifer A Sullivan __________________________________________________________ Land Enforcement Section Chief/Approval Date Page 5 of 5

He said there is 1 lot of record with a private driveway leading to the residences.

The samples were collected directly into a clean 1Liter glass bottle and transferred to individual, pre-labeled polyethlene sample containers for the analysis of chemical oxygen demand (COD), non-filterable solids (NFS), hardness (CaCO3), ammonia (NH3), nitrate plus nitrite (NO3+NO2), total kjeldahl nitrogen (TKN), total phosphorus (TP), cadmium (Cd), copper (Cu) and lead (Pb).

It is the understanding of the DEO that the following representatives of the Nature Conservancy will attend the meeting: Senator Bill Frist, Global Board Chair, The Nature Conservancy; Jan Glendening, Executive Vice President, The Nature Conservancy; Kameran Onley, Managing Director of North America Policy & Government Relations, The Nature Conservancy; Sarah Murdock, Senior Director North America Policy & Government Relations, The Nature Conservancy; Mark Staples, External Affairs Manager, The Nature Conservancy in Minnesota, North Dakota and South Dakota; and Brent Keith, Land Policy Team Lead, The Nature Conservancy.

EPA Inspection Report - Page 1 of 6 Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 04/13/2022 Air Title V Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Lotte Chemical Louisiana LLC Lotte Chemical Louisiana LLC 2200 Bayou D'Inde Pass Road Westlake, LA 70669 2200 Bayou D'Inde Pass Road Westlake, LA 70669 Calcasieu Parish 337-990-6345 Kaili Patterson Kaili.patterson@lottechem.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: 110070227146 0520-00488-V3 LA0000002201900502 325110, 325199 2869 Personnel participating in inspection: Nicholas Bobbs EPA/OECA/OCE/AED Richard Helmich EPA/OECA/OCEFT/NEIC Agustin Martinez EPA/OECA/OCEFT/NEIC Ali Gitipour EPA/ORD/CEMM/AMCD Elena Mayard LDEQ/OEC/SD Kaili Patterson Lotte Chemical Heather Holbrook Lotte Chemical Andrew Lavin Lotte Chemical Environmental Supervisor Inspector Chemist Technician Physical Scientist Inspector Environmental Supervisor Environmental Coordinator EHSS Manager EPA Lead Inspector Signature/Date Supervisor Signature/Date Digitally signed by NICHOLAS NICHOLAS BOBBS BOBBS Date: 2022.07.08 15:38:44 -04'00' {Inspector name} JAMES LEATHERS Date: 2022.07.08 15:24:04 -05'00' Digitally signed by JAMES LEATHERS {Supervisor name} Date Date 6ENFORM-019-R8.2 (02/12/2020) 1 EPA Inspection Report - Page 2 of 6 Section I - INTRODUCTION Lotte Chemical Louisiana LLC Inspection Date 04/13/2022 PURPOSE OF THE INSPECTION EPA inspectors Richard Helmich, Agustin Martinez, Ali Gitipour, and I, Nicholas Bobbs, and LDEQ inspector Elena Mayard ("We", "Us") arrived at Lotte Chemical Louisiana, LLC (the "Facility", the "Site", or "Lotte") at 8:00 AM on April 13, 2022 for an unannounced Clean Air Act ("CAA") inspection.

Need some kind of inventory on the EU processes running at the moment and who is taking the lead on that.

Implementing strict restrictions on PFAS and PFAS-containing articles may: (i) render certain processes or products infeasible to manufacture due to the lack of non-PFAS alternatives; (ii) increase manufacturing costs due to the need to find suitable alternatives (if they exist) or invest in development of replacement technologies; (iii) limit the availability of certain raw materials or components, leading to disruptions in the supply chain for manufacturers and companies who rely on such supply; (iv) where alternatives to PFAS exist, they are generally not as effective, and thus manufacturers may face challenges in developing products with similar performance attributes, potentially impacting the competitiveness of their offerings in the global market; and (v) unduly restrict European industries and consumers' access to existing and new products and technologies.