The limits for Lead and Zinc are hardness dependent as described in Section 8.Q.6 of the Permit.

The door leading from the interior of the facility did not have any type of alarm.

In addition, if highly durable and indispensable PFAS were to be substituted with nonPFAS materials, it would lead to a decline in the durability of the materials, which in turn would increase the risk to human lives due to reduced product safety, and the life cycle of products would be significantly shortened until they require repair, leading to increased replacement costs and waste.

Attendees Title Name Phone Lead Inspector Environmental Manager Ecology TR Engineer Katie Bradshaw 2065536318 Raeanne Wolfley Imran Khan 3605381480 Stephanie Gase Email Present in Present in Opening Conf.

This leads to the risk of "investment leakage" in the chemicals industry.

Unpermitted Date Application Submitted: Unpermitted facility facility Latitude: 40.697300N Longitude: -111.933191W Receiving Water(s): Unnamed, unclassified ditch Acreage: approximately 13 acres thence to the Jordan River Regulatory Inspector's source of information: Facility observations Areas Evaluated During Inspection Permit Self-Monitoring Program Records Compliance Schedule Pollution Prevention Stormwater Facility Site Review Laboratory No Exposure Effluent/Receiving Waters Operations and Maintenance Other: Flow Measurement Sludge Handling/Disposal Other: Contact Information Facility Contacts: Primary lead and present during inspections Person/Company meeting definition of "Operator" Authorized Official(s) (Per NOI or SWPPP) Name(s)/Title Chris McKean / Owner / Dura-Crete, Inc. / Primary lead during the inspection Brittney McKean / Vice President/HR / Dura-Crete, Inc. / Present during the closing conference Dura-Crete, Inc.

Region 2 Enforcement & Compliance Assurance Division Air Compliance Branch CAA Inspection Report Inspection Date: Facility Name: Facility Address: ICIS-Air ID #: Facility Contact: EPA Lead Inspector: EPA Asst.

A list of the mainly economic reasons, such as the absence of economic incentives for using recycled PVC, that lead to the operation stop can be found in this report.

The effluent passes over a flat weir plate prior to discharge to the pipe leading to the receiving stream.

The EPA Inspector assumed the lead agency responsibility during the Inspection.

Attendees Title/Organization Lead Inspector/ Contractor/ERG RCRA Inspector/ Contractor/ERG Inspector/Enforcement Officer/EPA Region 6 Inspector/Enforcement Officer/EPA Region 6 Name Vince Damiano Phone Email (703) 633-1732 Vince.Damiano@erg.com Opening Conf.

Attendees Title/Organization Lead Inspector/ Contractor/ERG RCRA Inspector/ Contractor/ERG Inspector/Enforcement Officer/EPA Region 6 Inspector/Enforcement Officer/EPA Region 6 Name Phone Email Opening Closing Conf.

,Oc ~ '- OG ~~ Respondent's EPA lead Safe Certification Number: _..:...

Calion, AR 71724 1070 Crain City Road El Dorado, AR 71730 Union County 870-814-7999 James Sinclair Person Responsible for Operation sisinclair02@gmail.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: N/A ARU002241; see AOGC permit 24679 N/A 211111 1311 Personnel participating in inspection: Kerri McCabe (lead) EPA / Region 6 ECDW Inspector / Enforcement Officer EPA Lead Inspector Signature/Date Supervisor Signature/Date KERRI MCCABE Kerri McCabe Digitally signed by KERRI MCCABE Date: 2024.05.16 08:28:26 -05'00' Date JEANNE ECKHART Date: 2024.05.16 12:35:20 -05'00' Digitally signed by JEANNE ECKHART Jeanne Eckhart Date 6ENFORM-019-R8.2 (02/12/2020) 1 Section I - INTRODUCTION Sinclair Operating Co., LLC / Crain 6 SWD Tank Battery (ARU002241 / CWA) Inspection Date 04/02/2024 PURPOSE OF THE INSPECTION EPA Region 6 Inspector Kerri McCabe (lead) arrived at the Sinclair Operating Co., LLC / Crain 6 SWD Tank Battery, located from Highway 167 South, thence Levee Road, at the intersection of Crain City Rd and Crain City Oil Field Rd at 33.266117, -92.508183; at 1407 on 4/2/24 for an unannounced inspection.

Person Responsible for Operation jamie@blbco.us FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: N/A ARU002340 N/A 211111 1311 Personnel participating in inspection: Kerri McCabe (lead) EPA / Region 6 ECDW Uma Lad EPA / Region 6 ECDW Inspector / Enforcement Officer Inspector / Enforcement Officer EPA Lead Inspector Signature/Date Supervisor Signature/Date KERRI MCCABE Kerri McCabe Digitally signed by KERRI MCCABE Date: 2026.01.27 08:10:46 -06'00' Date JEANNE ECKHART Date: 2026.01.27 09:39:40 -06'00' Digitally signed by JEANNE ECKHART Jeanne Eckhart Date 6ENFORM-019-R8.2 (02/12/2020) 1 Section I - INTRODUCTION Berg, Laney and Brown Company / Snyder Tank Battery (ARU002340 / CWA) Inspection Date 12/03/2025 PURPOSE OF THE INSPECTION EPA Region 6 inspectors Kerri McCabe (lead) and Uma Lad arrived at the Berg, Laney and Brown Company / Snyder Tank Battery ("facility") located from State Highway 7, straight on Hayes City Road (Ouachita CR 68), right on an oilfield lease road at 33.369833, -92.647033 in Louann (Joyce Community), Ouachita County, Arkansas; at 1330 on 12/03/2025 for an unannounced inspection.