Proposal for reporting data relevant for human health Human Health Assessment of Perfluoroalkyl carboxylic Acids (PFCAs) 25/10/2022 Current state of the assessment based on in vivo studies used in the EFSA Opinion (2020) and ATSDR Report (2018).

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 12/16/2024 RCRA TSD Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Clean Harbors Clean Harbors Colfax 3763 Highway 471 Colfax, LA 71417 3763 Highway 471 Colfax, LA 71417 Grant Parish 318-627-3443 Scott Robertson Facility General Manager II Robertson.donald@cleanharbors.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: 110000911210 Permit Number LAD 981055 791-RN-0P-1 EPA ID Number LAD981055791 562211 4953 Personnel participating in inspection: Angela Hays EPA Region 6 Erin Young-Dahl EPA Region 6 Jimbo Earles LDEQ Zachary Adams LDEQ Jerry McPheron CHC Joe Ganey CHC Inspector Inspector Inspector Inspector Operations Manager Operations Manager EPA Lead Inspector Signature/Date Supervisor Signature/Date Digitally signed by ERIN YOUNG- ERIN YOUNG-DAHL DAHL Date: 2025.02.06 16:00:38 -06'00' Angela Hays Digitally signed by DEBRA DEBRA PANDAK PANDAK Date: 2025.02.07 07:28:55 -06'00' Debra Pandak Date Date 6ENFORM-019-R8.2 (02/12/2020) 1 Clean Harbors Colfax, LA Inspection Date 12/16/2024 Section I - INTRODUCTION PURPOSE OF THE INSPECTION The scope was a focused inspection that concentrated on storage areas, hazardous waste management, and the production building where a fire took place on 6/11/2024.

CITY OF WILLIAMSPORT MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4) PROGRAM OFFSITE COMPLIANCE AUDIT REPORT CITY OF WILLIAMSPORT 253 W 4TH STREET WILLIAMSPORT, PA 17701 Audit Dates: October 28-30, 2020 Report Date: December 16, 2020 U.S.

CITY OF WILLIAMSPORT MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4) PROGRAM OFFSITE COMPLIANCE AUDIT REPORT CITY OF WILLIAMSPORT 253 W 4TH STREET WILLIAMSPORT, PA 17701 Audit Dates: October 28-30, 2020 Report Date: December 16, 2020 U.S.

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