In the meantime, Paul Spitsen, who helps lead the load management and broader power systems programs I was mentioning, could attend the January event in Scottsdale.

Documentation reviewed: Prior to the inspection, EPA inspectors reviewed the following documentation: - Last two sanitary surveys performed by DHEC - Violation history - Enforcement Targeting Tool Score history EPA inspectors reviewed the following documentation on site: - System's distribution maintenance o System flushing plan o Hydrant maintenance o Work orders o Leak Detection o Cross connection plan o Field map - Customer complaints - Water audit - 450 kW generator maintenance - Calibration records of benchtop turbidimeter - MORs o January 2022 o March 2021 o February 2022 - 2020 Lead and Copper Rule results & customer letter - Feb 2022 Total Organic Compound results - DBP monitoring results for all quarters in 2021 - Bacteriological sampling plan - DBP sampling plan Comments and Observations Comments Facility staff was welcoming and helpful during the inspection.

The facility discharges to the sewer collection system leading to the City's POTW.

EPA Glen Jenkins LDEQ Andrew Lavin Lotte Chemical Kaili Patterson Lotte Chemical Heather Holbrook Lotte Chemical Lauren Schiffman Lotte Chemical Carley Simon Lotte Chemical Mark Peters Lotte Chemical Maite Sedaba Lotte Chemical Samuel Gauspohl Lotte Chemical Joshua Cormier Lotte Chemical Lance Tucker Lotte Chemical Michael Estes Lotte Chemical Inspector/Enforcement Officer Inspector EHSS Manager Environmental Supervisor Environmental Coordinator PSM Engineer EHA Admin Assistant Site Executive Director Process Engineer Mechanical Reliability Engineer Day Supervisor IH/Safety Emergency Response EPA Lead Inspector Signature/Date ANTHONY ROBLEDO Digitally signed by ANTHONY ROBLEDO DN: c=US, o=U.S.

Refrigeration, air conditioning and heat pump systems are technically tight systems, which is of utmost importance in practice - on the one hand for environmental reasons and on the other hand because unwanted F-gas emissions lead to a reduction in performance and especially also in efficiency.

The effluent passes over a weir prior to discharge to the pipe leading to the unnamed tributary.

BOD Limit (lbs/day) Ammonia Limit (mg/L) Total Suspended Solids (TSS) Limit (mg/L) pH Jun-18 40.17/79.69 30/45 Jul-18 11 Aug-18 4.39 3.4 May-19 90.55/299.47 30/45 Jul-19 Aug-19 269.61 30/45 12 Sep-19 4.27 3.8 419.075 30/45 Mar-20 10 Jun-20 11 Jul-20 11 Aug-20 33/51.5 30/45 Nov-20 11 Jan-21 10 Sep-21 5.5 Dec-21 32.03/90 30/45 Jun-22 49.105 45 32.71 30 6 Jul-22 47 45 Limit (S.U.) 6 to 9 6 to 9 6 to 9 6 to 9 6 to 9 6 to 9 6 to 9 6 to 9 6.5 to 9 During the review, I noted that there were several data entry errors that lead to reported violations of effluent limits.

EPA Inspectors also observed a pump in 3 ED_019088B_00000007-00003 operation, with a blue hose, collecting water from a hole in the ground leading north outside of the Facility (slides 31-33).

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III Four Penn Center - 1600 John F Kennedy Blvd Philadelphia, Pennsylvania 19103-2852 Report Title: Inspection Date(s): Regulatory Program(s): Clean Air Act Inspection of Insul-Board, Incorporated September 26, 2023 State Implementation Plan Company Name: Facility Name: Facility Location: Latitude: County/Parish: Insul-Board, Incorporated Insul-Board, Incorporated 2120 Colonial Avenue Erie, Pennsylvania, 16504 42.08222 Erie Longitude: -80.1659 AFS/ICIS-Air Number: Permit Number: NAICS Code: Unique Project #: PA000512830 SOOP 25-00972 326140 3E23CA038A SIC: 3086 Facility Representatives: Tom Estock, President Phone: (814) 833-7400 Richard Estock, Founder Phone: (814) 833-7400 Chris Nutter Phone: (814) 881-1570 Email: eps@insulboard.com Email: Email: ims1@velocity.net Point of Contact EPA Inspectors: Paul Arnold, Environmental Engineer, 3ED21 Phone: (215) 814-2194 Email: Arnold.paul@epa.gov Carly Joseph, Enforcement Inspector, 3ED21 Phone: (215) 814-2127 Email: joseph.carly@epa.gov Alex Everhart, Enforcement Inspector, 3ED21 Phone: (215) 814-2114 Email: Everhart.alex@epa.gov State/Local Inspectors: N/A EPA Lead Inspector Signature PAUL ARNOLD Digitally signed by PAUL ARNOLD Date: 2023.10.12 15:22:13 -04'00' Paul Arnold 1600 John F Kennedy Blvd Philadelphia, PA 19103-2852 KRISTEN Supervisor HALL Signature Digitally signed by KRISTEN HALL Date: 2023.10.13 06:01:06 -04'00' Kristen Hall Date Date Table of Contents I.

AUDIT REPORT CERTIFICATION: This is to certify that I, Bob Hales, was the lead inspector at this facility and that I have verified the accuracy of the observations in this inspection report: _H___a__l_e___s_,__B___o__b______________D_a_t_e_:_2_0_2_1_.1__1_.0_4__1_4_:3_4_:_4_8_-_0_7_'0_0' Digitally signed by Hales, Bob Morales, Javier Digitally signed by Morales, Javier ______________________________D__a_te_:_2_0_2_1_._1_1_.0_4_1_5_:_0_7_:5_5__-0_7_'_0_0_' _ RMP Coordinator/Approval Date ERIN WILLIAMS Digitally signed by ERIN WILLIAMS Date: 2021.12.06 14:21:46 -08'00' __________________________________________________________ EPCRA Coordinator/Approval Date Digitally signed by Jennifer A Jennifer A Sullivan Sullivan ___________________________________D_a_t_e_:_2_0_2_1_._1_2_.1__3_1_1_:_1_1_:1__6_-08'00' Land Enforcement Section Chief/Approval Date Page 4 of 4

The paved slope from the south edge of the parking lot leads directly down to the Kinnickinnic River and has no stormwater control measures in place (Photo 6).

This could lead to reduced output of gasoline and other fuels that are essential to the national economy and 2 https://www.whitehouse.gov/presidential-actions/2025/02/america-first-investment-policy/. 3 Installing new real-time monitoring equipment requires availability of outside resources and availability of real-time monitoring equipment.

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 12/13/2023 Water Clean Water Act Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: LBOC, LLC Staples-Olvey-Lion-SWD Latitude: 33.31828, Longitude: -92.51609 El Dorado, AR, 71730 787 Baugh Street Norphlet, Arkansas, 71759 Union County 870-546-3457 Scott Carter Representative longbrosoil@yahoo.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: NA ARU001230 NA 211111 1311 Personnel participating in inspection: Chelsey Sherwood EPA/Region 6 ECDW Michael Blaha EPA/Region 6 ECDW Tamara Griffin EPA/Region 6 ECDW Enforcement Officer/Inspector Enforcement Officer/Inspector Enforcement Officer/Inspector EPA Lead Inspector Signature/Date Supervisor Signature/Date Digitally signed by CHELSEY CHELSEY SHERWOOD SHERWOOD Date: 2024.02.07 07:45:12 -06'00' Chelsey Sherwood MITTY GARCIA Date: 2024.02.07 11:14:46 -06'00' Digitally signed by MITTY GARCIA Jeanne Eckhart (acting Chief Mitty Garcia) Date Date 6ENFORM-019-R8.2 (02/12/2020) 1 Section I - INTRODUCTION LBOC, LLC.

Electricity grid technology manufacturers are engaged in ensuring that the use of PFAS does not lead to irreversible environmental exposure and accumulation, working with the wider supply chain to phase out PFAS substances identified as posing risks for the environment and human health.

The production building floor was heavily eroded by liquids in several places, leading to the formation of puddles or streams of liquids (images 3, 4, 8, and 9).