Document O1mJb1952VVx4r4KmYe64Yebj

EPA Inspection Report - 1 of 57 Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 12/04/2023 - 12/07/2023 Air SIP, Title V, NESHAP, NSPS, Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Citgo Petroleum Corp Lake Charles Manufacturing Complex 4401 HWY 108 Westlake, LA 70669 PO Box 1562 Lake Charles, LA 70602 Calcasieu Parish 337-708-6011 Phyllis Holifield Environmental Manager PHOLIFI@citgo.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: 110070244347 2796 LA0000002201900016 324110 2911 Personnel participating in inspection: Kyle Evers Citgo Gus Fazzio Citgo Phyllis Holifield Citgo Tina Gray Citgo Fabiola Nelson Citgo Jacob Courville Citgo Walt Stewart Citgo Seth Touchet Alliance TG James L. Mancil Alliance TG James F. Mancil Alliance TG Ben Rosenthal EPA R6 James Haynes EPA R6 Collen McCarthy EPA R6 Ben Donaldson EPA R6 Constantinos Loukeris EPA R5 Matthew Schneider EPA NEIC Brianna Leiker EPA NEIC Hans Buenning EPA NEIC Andrew Mills LDEQ Laura Bruchhaus LDEQ Environmental Advisor Operator Environmental Manager Senior Environmental Advisor WW OED OED POM Supervisor BWON Supervisor QAQC/HSE Technician Physical Scientist Physical Scientist Physical Scientist Environmental Engineer Environmental Engineer Chemical Engineer Environmental Engineer Environmental Engineer Environmental Scientist Environmental Scientist 6ENFORM-019-R8.2 (02/12/2020) 1 EPA Inspection Report - 2 of 57 EPA Lead Inspector Signature/Date Supervisor Signature/Date Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Digitally signed by BENJAMIN BENJAMIN ROSENTHAL ROSENTHAL Date: 2024.03.18 12:43:28 -05'00' Benjamin Rosenthal Date JAMES LEATHERS Date: 2024.03.18 12:53:27 -05'00' Digitally signed by JAMES LEATHERS James Leathers Date 2 EPA Inspection Report - 3 of 57 Section I - INTRODUCTION Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 PURPOSE OF THE INSPECTION EPA Region 6 inspectors Ben Rosenthal, Colleen McCarthy, James Haynes, and Ben Donaldson, National Enforcement Investigations Center ("NEIC") inspectors Matthew Schneider, Brianna Leiker, and Hans Buenning, and Region 5 inspector Constantinos Loukeris arrived at the Citgo Corp ("Citgo") Lake Charles Manufacturing Complex ("Site", "Refinery", "Facility") at 8:05 am on December 4, 2023, for an announced Clean Air Act ("CAA") inspection. Louisiana Department of Environmental Quality ("LDEQ") inspectors Andrew Mills and Laura Bruchhaus also participated in the inspection. The inspectors ("EPA Inspection Team" "We") met with Phyllis Holifield, Citgo Environmental Manager, and other Citgo personnel. I presented my credentials to Ms. Holifield and informed her that EPA was conducting an inspection to determine the facility's compliance with the CAA. The scope of the inspection is a partial compliance evaluation ("PCE") and includes evaluation of the facility's compliance with its Title V Operating Permits, Louisiana State Implementation Plan ("SIP"), and applicable Clean Air Act Regulations listed under Parts 60, 61, and 63 of Title 40 of the Code of Federal Regulations ("CFR"). 40 CFR Part 63 Subpart CC--National Emission Standards for Hazardous Air Pollutants From Petroleum Refineries ("MACT CC") applies to refining process units and related emissions points at the Facility because it is a major source as defined in section 112(a) of the CAA and emits one or more hazardous air pollutants. 40 CFR Part 61 Subpart FF - National Emission Standards for Benzene Waste Operations ("BWON") applies to the facility because it is a petroleum refinery. Citgo elects to follow the BWON compliance option in 40 CFR 61.342(e) ("6BQ"). FACILITY DESCRIPTION The facility is a petroleum refinery that uses various processes to produce end-use products from crude oil. The facility produces benzene, xylene, propane, ethane, sulfur, gasoline, diesel, kerosene, distillate and residual oil, propylene, and petroleum coke. Refinery processes include atmospheric and vacuum distillation, fluid catalytic cracking, catalytic reforming, amine treatment, and sulfur recovery, among others. The site has two coking units and only one, Coker-2, was operational during the inspection. The facility stores intermediate materials, end-use products, and wastewater in above ground storage tanks. The facility has loading docks for bulk product loading onto marine vessels. Process wastewater from different units in the facility is conveyed via the oily water sewer ("OWS") to a wastewater treatment plant ("WWTP"). The facility uses different types of control devices including flares, floating roofs, and carbon adsorption systems ("carbon drums", "carbon canisters", "carbon controls"). The wastewater system and storage tanks are permitted under Part 70 Operating Permit No. 2796-V16. The facility operates continuously and employs around 1,000 workers. Section II - OBSERVATIONS The inspectors and facility personnel met in a conference room on-site. After presenting my credentials to Ms. Holifield I explained the scope of the inspection. I stated we would inspect the facility's 3 EPA Inspection Report - 4 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 wastewater system and evaluate its compliance with BWON. We would also inspect the facility's storage tanks and evaluate compliance with the applicable regulations, including the National Emission Standards for MACT CC and the Louisiana SIP. I explained that we would use Flame Ionization Detectors ("FID") and Optical Gas Imaging Cameras ("OGIC") to monitor emissions from equipment at the site. Logs of photographs and videos taken during the inspection are found in Appendix 1 and 2. FID field measurement data is found in Appendix 3. I stated we would collect air samples with passivated stainless-steel canisters for analysis of chemical species using EPA Method TO-15 ("Summa Samples"). Summa Sample results are found in Appendix 4. We discussed the status of records requested on November 29, 2023, which was the date EPA notified Citgo of the inspection. See Appendix 5 for information requested from Citgo. Ms. Holifield and Mr. Fazzio described the benzene containing waste streams at the facility and their flow from the units into the OWS and conveyance to the WWTP. Most waste streams are either pumped or gravity fed from the units to the OWS main line which flows to the Lift Station East and Lift Station West. These lift stations are identified as EQT0419 and EQT0420 in permit 2796-V16. The Lift Stations are collectively referred to as "The Lift Station" by Citgo personnel and in this report. The Lift Station collects wastewater from the OWS and pumps it to the WWTP. Some benzene waste streams, including Desalter water from the crude and vacuum units, the F701 Flare knockout drums, and water draws from buffer tanks 36 and 46, are hard piped directly to the 5 API oil-water separators ("APIs") at the WWTP. Emissions at the WWTP are controlled by air-assisted flare B-700. The vent gas stream from API L-205 is routed to the Facility's flare gas recovery system. Ms. Holifield and Mr. Fazzio explained the facility's slop oil system and wastewater treatment processes. They informed us that Alliance TG is the facility's Leak Detection and Repair ("LDAR") contractor and would accompany the EPA inspection team to conduct concurrent Method 21 measurements. We arrived with Citgo personnel at the Lift Station at 12:40 pm. I noted that the lift station consisted of two square recessed concrete vaults with floating roof covers. Adjacent to the vaults were 4 raised and bolted steel plates. Inspectors noted sand and wet sealant at locations around the steel plates. Inspectors observed hydrocarbon emissions above 500 ppm VOC ("detectable emissions") at numerous locations around the steel plates using Method 21 and visualized hydrocarbon emissions around the edge of the roof cover and at other locations using OGICs. Citgo personnel explained that they consider the Lift Station to be a junction box. Citgo personnel stated that the lift station was inspected visually, that no Method 21 inspections were conducted on any part of it, and that no seal gap measurements or other inspections were performed on the floating roof covers. [Area of Concern ("AOC") 1] We drove to the WWTP after viewing the Lift Station. Inspectors performed Method 21 on each API and noted detectable emissions at numerous locations on each API. Inspectors noted that several pressure relief devices ("PRD") on the APIs were tagged by Citgo as needing repair. We observed Method 21 measured emissions above 10,000 ppm VOC at several PRDs. I observed a valve dripping liquid under API L-205. [AOC 2] EPA inspectors observed two bypass vents on the APIs that were venting emissions to the atmosphere. A bypass vent on L-204 had measured emissions of 75 ppm VOC, indicating a flow of 4 EPA Inspection Report - 5 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 the vapor space stream to the atmosphere. The outlet of a bypass vent on L-201 had measured emissions of 4,800 ppm VOC. [AOC 3]. EPA inspectors observed the dissolved gas flotation tanks ("DGF") L223 and L224. Inspectors observed that each DGF has a bolted panel on the roof and a flexible open-ended tubing that was described by Citgo personnel as overfill pipes for water seals. The bolted panels are not readily accessible for Method 21 inspections. Inspectors conducted Method 21 on L223 components and noted readings above 500 ppm VOC. [AOC 4] We departed the site around 4:30 p.m. We returned to the site at 8:00 am on December 5, 2023, and EPA inspectors Loukeris, Schneider, and McCarthy conducted Method 21 at the Marine Loading Docks A, B, C, and D ("Docks"), while the rest of the inspection team continued inspecting the WWTP. At the docks, inspectors observed and noted visual defects on sumps and other waste management units, including missing gaskets, damaged seals, missing bolts, and components concealed by debris. [AOC 5] Numerous readings above 500 ppm VOC were observed. At Dock B, Inspectors observed an open trough that collects residual slop material after marine vessel loading. The trough drains to the F-12 drum which is open to the atmosphere through a gooseneck vent pipe that is not connected to a closed vent system or control device. EPA inspectors observed a measurement of 78,000 ppm VOC at F-12. Inspectors were informed that only visual inspections were conducted at Dock B, and that Method 21 inspections were not conducted at the docks. Inspectors observed the pump drain to the Dock C sump had a continuous crack in the sealant that is open to the atmosphere. [AOC 6] Citgo personnel informed EPA inspectors that they do not consider Method 21 procedures to require placing the monitoring instrument's probe on the surface of the monitored component. [AOC 7] We observed sumps designated L-500 and L-510 at the WWTP. Access was restricted around the sump due to elevated hydrogen sulfide from a leaking PRV. The leak was discovered by Citgo personnel on December 1, 2023. Citgo personnel explained that L-500 was a stormwater sump and the adjacent L-510 was an oily water sump from the WWTP oily water sewer. L-500 was connected via a flexible hose to a set of carbon drums. I measured 4,300 ppm VOC at the outlet of the carbon drums. We observed a technician perform the procedure for measuring carbon drums to determine breakthrough. Breakthrough is a condition where a significant pollutant concentration exits the system by `breaking through' the carbon beds. The facility's threshold for determining breakthrough is a measurement of 5 ppm benzene or greater between the primary and secondary carbon drum. The technician used a Photoionization detector ("PID") filtered for benzene and measured 9 ppm benzene. The technician explained that breakthrough was monitored every two weeks and that the carbon drums had to be cycled out every 3 months when the carbon becomes saturated and breakthrough occurs. We observed visualized hydrocarbon emissions from the PRD on L-510. Citgo later explained that L-500 is a stormwater sump that operates under normal conditions with minimal emissions, but a faulty check valve caused oily water to enter the WWTP stormwater system, necessitating carbon controls. [AOC 8] Inspectors imaged WWTP storage tanks with OGIC and observed emissions at T-512, T-515, and a catch basin by T-513. [AOC 9] 5 EPA Inspection Report - 6 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 After observing the Docks and WWTP, we separated into three groups to observe storage tanks, the Reformers Unit, and collect Summa Samples at locations in the WWTP. Inspector Buenning observed tank T-208, an internal floating roof tank ("IFR") storing pure benzene. Hydrocarbon emissions were seen venting from an access hatch on the north side of the roof. An Alliance TG technician used an FID in the plume of the observed emissions, but not at the hatch itself, and measured 3,000 ppm VOC in open air. See Appendix 6 for a list of observations of above ground storage tanks monitored during the inspection. [AOC 10] Inspectors Leiker, Loukeris, McCarthy, and Schneider, observed the A, B, and C Reformers. The inspectors noted visual deficiencies including cracks in concrete, cracked and weathered sealant, a lack of sealant at equipment interfaces, sand and debris covering components that require visual inspection, and FID measurements above 500 ppm. Inspectors observed a piece of plywood covering an opening at the A Reformer Sump and recorded emissions over 10,000 ppm VOC. Inspectors noted strong hydrocarbon odors at the C Reformer OWS Sump. At the B Reformer Sump, vapors observable to the naked eye were noted venting from the outlet of the carbon drums to the atmosphere and an FID flameout was recorded between the primary and secondary carbon drum. EPA inspectors recorded an FID flameout at the secondary carbon drum outlet and Alliance TG measured 73,000 ppm VOC [AOC 11]. The inspectors continued to the Unicracker Unit OWS sump and observed missing bolts on steel plates around a pump and noted measurements above 10,000 ppm VOC. We departed the site at 5:30 p.m. On December 6, 2023, we returned to the site at 8:15 am and split into two teams to continue the previous days monitoring of the wastewater system and storage tanks. Inspector Buenning observed emissions from the perimeter vents on tank T-99-a slop oil tank, and at other tanks. See Appendix 6 for a list of observations of storage tanks monitored during the inspection. Inspector Haynes observed a Citgo contractor conducting a seal gap inspection on Tank 187. Mr. Haynes noted the seal gap inspector was using a pencil to probe locations along the rim seal. [AOC 12] We arrived at the CATS unit and observed two sumps - the ACGH sump and BCGH sump. We noted visual defects at each sump, including cracked sealant, pinhole leaks in sealant with oily stains, gaps in metal plates, missing bolts, and damaged sealant on cover penetrations. Numerous measurements above 500 ppm VOC were noted at both sumps. Visualized emissions were observed with the OGIC at both locations. The EPA Inspection team noted strong hydrocarbon odors at the ACGH sump. I collected a summa sample at the southeast corner of the ACGH sump at a location with cracked sealant that flamed out the TVA. The summa sample we collected contained 56.6 ppmv benzene. [See AOC 6] We departed the site at 4:45 pm. We returned to the site at 8:15 am on December 7, 2023. The wastewater-focused inspectors walked through the WAAT unit, the Crude A/B/C units, and the mixed xylenes units. Observations at these units are found in the appendices. We continued to the Coker-2 unit where Citgo had stated that a faulty valve had necessitated an exclusion zone that precluded our access. In the Coker-2 unit we observed manholes with missing seals and cracked concrete. An Alliance TG technician stepped on a manhole cover close to the equipment plate 326-349-SR2 and caused the entire structure to shift position- 6 EPA Inspection Report - 7 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 indicating a structural deficiency in the barrel portion of the manhole. We observed the OWS sump JP225 A/B and noted holes and gaps in the metal plates covering the sump with no gaskets or sealant at cover penetrations. We also observed a gooseneck vent that was routed from the sump to the open atmosphere and not connected to a control device or closed vent system. [See AOC 6] We departed the site at 4:40 pm. Section III - AREAS OF CONCERN We conducted a closing conference at Citgo LCMC at on December 7, 2024. During the closing conference, we reviewed Areas of Concern noted during the inspection. 1) Citgo failed to control the Lift Station for air emissions pursuant to the waste management unit standards of Subpart FF: The EPA inspection team observed detectable emissions and visual defects at the Lift Station. See Appendix 2 for OGIC videos of hydrocarbon emissions and Appendix 3 for measurements of detectable emissions at the Lift Station. The East and West Lift stations feature the same configuration: Floating roofs in the open and recessed concrete vaults that are connected via piping to an enclosed concrete vault with a fixed cover with raised bolted metal panels. The floating roofs are not fixed in place and move with the liquid level in the recessed concrete vaults. The floating roofs have adjustable rim seals where the edge of the roof contacts the concrete vault. Junction box covers are required to have a tight seal around the edge and shall be kept in place at all times, except during inspection and maintenance. 40 CFR 61.346(b)(2)(i). The designs of the floating roofs preclude compliance with a tight seal that is fixed in place and OGI images indicated emissions from the floating roof seals. 2) Citgo failed to route all organic vapors from the APIs at the WWTP to a control device and did not operate or maintain the fixed roofs without detectable emissions: Citgo operates 5 API oil-water separators at the WWTP. The APIs have a fixed roof design, and the vapor space vent gas is routed through a closed vent system to either the B-700 flare or the flare gas recovery system. API L-201 through L-204 are under a natural gas blanketing system that acts as a sweep gas to the flare. Table 1. Detectable emissions measured from the APIs. Waste Management Unit Component EPA Measurement in ppm VOC Facility Measurement in ppm VOC API L-201 Cover 6,900 3,500 API L-201 OVB 3,700 4,698 7 EPA Inspection Report - 8 of 57 API L-201 API L-201 API L-201 API L-201 API L-202 API L-202 API L-202 API L-202 API L-204 API L-204 API L-205 API L-205 API L-205 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Bypass vent (Car Seal #27677) 4,800 3,378 PRD 1,200 637 PRD 4,000 21,703 PRD 16,000 65,942 Cover 1,500 1,276 PRD 7,600 15,459 PRD 17,000 39,790 PRD 80,400 53,000 PRD 5,000 9,436 PRD Flameout 27,873 Cover 1,400 10,278 Cover 1,300 1,343 Cover 680 588 BWON standards for oil-water separators require a fixed-roof and closed-vent system that routes all organic vapors vented from the oil-water separator to a control device. The cover and all openings (e.g., access hatches, sampling ports, and gauge wells) shall be designed to operate with no detectable emissions as indicated by an instrument reading of less than 500 ppmv above background. 40 CFR 61.347(a)(1). 3) Bypass vents on the API are diverting the vapor space vent streams away from a control device. 40 CFR 61.349(a)(1)(iv) requires devices that are part of a closed-vent system and vent directly to the atmosphere to be maintained in a closed and sealed position during normal operations. 4) Citgo is not operating the DGFs with openings in closed and sealed positions and without detectable emissions: EPA Inspectors observed visualized hydrocarbon emissions with the OGIC from the top of a DGF. An EPA inspector measured 1,200 and 600 respectively from two PRDs on DGF L-223. EPA inspectors also observed flexible open pipes actively draining water into an open catch basin on the ground from the top of each DGF. Citgo explained that there is a water seal rather than a fixed roof over a portion of the 8 EPA Inspection Report - 9 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 DGFs where equipment penetrates the vessels, and the water is continuously overflowing the water seal through the flexible open pipes. The DGFs are tanks and must comply with the standards in 40 CFR 61.343. 40 CFR 61.348(a)(2). 40 CFR 61.343(a)(1)(i)(B) requires that each opening be maintained in a closed, sealed position and that the cover and all openings shall be designed to operate with no detectable emissions. 5) Citgo cannot perform effective visual inspections on equipment that is covered with debris: EPA inspectors observed visible defects on several waste management units in the Docks. EPA inspectors also observed sump covers obscured with debris. EPA inspectors observed sand covering equipment and concealing leak interfaces at other locations. It is not possible to conduct visual inspections and make assessments of the condition of components that are not visible, and sand does not effectively control hydrocarbon emissions. 6) Citgo failed to control air emissions and implement the applicable BWON standards at several waste management units. The EPA inspection team measured detectable emissions and observed visible defects at individual drain systems and collection tanks in Docks A through D, the Unicracker unit, the A, B, and C, Reformer units, the CV-1 unit, the Cats unit, and the Coker 2 unit. We observed cracked sealant, oily pinholes in sealant, and gaps at cover penetrations on several oily-water collection tanks. Detectable emissions were measured at numerous visual defects, and we observed visualized hydrocarbon emissions at several defects. We also observed uncontrolled atmospheric vent pipes, tanks with missing bolts, gaskets, and sealant at component interfaces. We observed a trough carrying regulated material that was open to the atmosphere with no cover. For a summary of detectable emissions and observations of visible defects see Appendix 3. Specifically, the EPA inspection team observed that the F-12 Drum was open to the atmosphere through an uncontrolled gooseneck vent pipe. The EPA inspection team measured emissions of 78,000 ppm VOC from the gooseneck vent pipe. The EPA inspection team observed a stilling well in the A Dock that was not gasketed, bolted, and sealed, and was a source of detectable emissions. According to Citgo, the F-12 Drum and the stilling well are not being monitored with Method 21. These waste management units, and others observed by the EPA inspection team, may not meet the BWON definition of an individual drain system and have characteristics consistent with the BWON definition of a tank. The BWON standards for tanks require a cover, fixed-roof, and closed-vent system that routes all organic vapors vented from the tank to a control device. 40 CFR 61.343(a)(1). The cover should be designed and operated with no detectable emissions. 40 CFR 61.343(a)(1)(i)(A). BWON requires annual monitoring of tanks with Method 21 to ensure they are operated with no detectable emissions. 40 CFR 61.343(a)(1)(i)(C)(2). We observed a Coker 2 Sump pump that was not bolted to the sump cover and had a large hole in the baseplate. The sump has a gooseneck vent pipe that is uncontrolled and open to the atmosphere. Citgo considers the Coker 2 Sump to be a junction box. BWON requires junction box vent pipes to be controlled for emissions of organic vapors. 40 CFR 61.346(b)(2)(ii). 9 EPA Inspection Report - 10 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 We measured detectable emissions from two cleanouts in the Unicracker and the C Reformer respectively. BWON requires sewer lines to be closed to the atmosphere and covered or enclosed in a manner with no visual gaps or cracks in joints, seals, or other emission interfaces. 40 CFR 61.346(b)(3). 7) Citgo should conduct Method 21 as prescribed in 40 CFR Part 60 Appendix A. The procedure for collecting samples under Method 21 - Determination of volatile organic compound leaks can be found in Appendix A-7 40 CFR Part 60. Method 21 requires the probe inlet of the measuring instrument to be placed at the surface of the component interface where leakage could occur. 8) The stormwater system at the WWTP is contaminated with hydrocarbons: We observed detectable emissions at the carbon control outlet on stormwater sump L-500. Citgo explained that L-500 was contaminated with hydrocarbons from the WWTP OWS when a check valve malfunctioned. Hydrocarbons back flowed through the faulty check valve into L-500. Specific requirement 155 of Permit 2796 requires the facility to keep records that demonstrate stormwater sewer systems do not receive or contact process or oily wastewaters. Citgo is monitoring carbon controls on L-500 by measuring benzene breakthrough between the primary and secondary carbon drum, not the concentration of organic vapors in the exhaust vent stream from the secondary carbon canister. As a result of the hydrocarbon contamination, the stormwater system is not segregated from the process wastewater collection system. The MACT CC wastewater group status of the stormwater system is unknown. If it is not a Group 1 wastewater stream, it is subject to the requirements of NSPS QQQ. NSPS QQQ requires vapor recovery systems (for example, condensers and adsorbers) to be designed and operated to recover the VOC emissions vented to them with an efficiency of 95 percent or greater. 40 CFR 60.692-5(b). 9) EPA Inspectors detected emissions above 1,000 ppm VOC at a catch basin drain in the WWTP near Tank 513: Citgo operates an oily water sewer system at the WWTP. EPA inspectors observed visualized hydrocarbon emissions with the OGIC and measured 53,000 ppm VOC at a catch basin drain in the WWTP that was close to Tank 513. The catch basin we observed was fitted with a bell trap-a type of water seal. The water level was difficult to observe through the drain grate because the grate was covered with built up oily residue and debris. BWON requires quarterly visual inspections of drains to ensure that the water seal control is maintaining effectiveness. 40 CFR 61.346(b)(4)(i). 10) The EPA inspection team used an OGIC to observe hydrocarbon emissions from T-208 (a tank storing benzene) and from numerous other tanks at the Refinery: OGIC video evidence of emissions from storage tank components including floating roofs, roof fittings, and vents indicate higher emissions from those tanks than from other similar tank components storing higher-volatility, or similar-volatility, liquid where no significant emissions were observed. The EPA inspection team observed hydrocarbon emissions using an OGIC from several storage vessels. The 10 EPA Inspection Report - 11 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 imaged emissions suggest that rim seals and/or deck fittings were not meeting applicable design, operational and maintenance standards. See Appendix 6 for a complete list of storage vessel observations. Measuring the lower explosive limit ("LEL") of the headspace at a storage vessel equipped with an IFR may be used to determine if the tank is operated in a safe manner. During the inspection, I requested that Citgo test the LEL of the headspace in T-208. See Appendix 5 Requested Information, for the LEL Test Protocol. 11) Detectable emissions were observed at the outlet of 4 carbon adsorption systems: Citgo determines breakthrough conditions at carbon controls by measuring benzene specific concentrations between the primary and secondary drums, with measurements above 5 ppm benzene indicating breakthrough. Citgo does not monitor total VOC concentrations at the outlet of the drums to the atmosphere. EPA inspectors measured emissions over 23,000 ppm VOC and recorded an FID flameout at the outlet of carbon controls for the B Reformer Sump. Permit Condition 425 requires Citgo to maintain best practical housekeeping and maintenance practices at the highest possible standards to reduce the quantity of organic compounds emissions including the practices listed in LAC 33:III.2113.A.15. LAC 33:III:2113.A.4 requires facilities to develop a written plan for housekeeping and maintenance that places emphasis on the prevention or reduction of volatile organic compound emissions from the facility. LAC 33:III:2113.A.3 requires waste materials that contain volatile organic compounds to be stored and disposed in a manner that reduces or eliminates the emission of volatile organic compounds. 12) Citgo failed to properly conduct a seal gap inspection on an external floating roof tank: EPA Inspectors observed a seal gap inspection of Tank 187. Citgo's contractor inspecting the rim seal used a pencil as their seal probe. The procedures for measuring the presence and size of gaps between the rim seal and the edge of the tank are described in 40 CFR 63.1063(d)(3) of NESHAP Subpart WW for Group 1 storage vessels complying with 40 CFR 63.660. Inspectors are required to hold a 1/8-inch diameter probe vertically against the inside of the storage vessel wall, just above the rim seal, and attempt to slide the probe down between the seal and the vessel wall. Each location where the probe passes freely (without forcing or binding against the seal) between the seal and the vessel wall constitutes a gap. During additional discussions with Citgo staff, they described a procedure that was also inconsistent with the requirements for seal gap inspections. This suggests Citgo has not been properly conducting seal gap inspections prior to the one observed by EPA. 13) Citgo failed to control air emissions from waste management units whose waste streams account for over 6 Megagrams of benzene quantity: Previous AOCs note the EPA inspection team documented detectable emissions and visible defects at several waste management units. Waste management units with detectable emissions that are subject to no detectable emissions standards cannot be considered controlled for air emissions. Waste management units with visible defects and measured detectable emissions at those defects cannot be considered controlled for air emissions. Citgo elects to comply with the 6BQ option in BWON, which 11 EPA Inspection Report - 12 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 requires the facility to calculate uncontrolled benzene quantity according to 61.355(k). Citgo must determine the annual uncontrolled waste quantity at the location where the waste stream first enters a tank, oil water separator, individual drain system, or other waste management unit listed in BWON. 40 CFR 61.355(k)(2)(i). Section IV - FOLLOW UP Citgo submitted supplemental information on December 14, 2023. Citgo asserts a confidentiality claim on the information that was submitted and it is not listed in this report. Section V - LIST OF APPENDICES Appendix 1 - Photograph Log - 111 photographs Appendix 2 - Video Log - 66 OGIC videos Appendix 3 - Field Measurement Data Appendix 4 - Summa Sample Results Appendix 5 - Requested Information Appendix 6 - Storage Tank Observations 12 EPA Inspection Report - 13 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Appendix 1 Photograph Log EPA Inspection Report - 14 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Photograph File Name No.1 1 R0010500.JPG 2 R0010501.JPG 3 R0010502.JPG 4 R0010504.JPG 5 R0010505.JPG 6 R0010506.JPG 7 R0010507.JPG 8 R0010508.JPG 9 R0010509.JPG 10 R0010510.JPG 11 R0010511.JPG 12 DC_0059.JPG 13 DC_0061.JPG 14 R0010512.JPG 15 R0010513.JPG 16 DC_0064.JPG 17 DC_0066.JPG 18 DC_0063.JPG 19 FLIR0016.JPG 20 DC_0067.JPG 21 DC_0069.JPG 22 DC_0070.JPG Date and Time 12/4/23 13:54 12/4/23 13:56 12/4/23 13:58 12/4/23 14:07 12/4/23 14:12 12/4/23 14:12 12/4/23 14:19 12/4/23 14:55 12/4/23 15:21 12/4/23 15:21 12/4/23 15:21 12/4/23 15:45 12/4/23 15:45 12/4/23 15:49 12/4/23 16:07 12/5/23 10:16 12/5/23 10:16 12/5/23 10:16 12/5/23 10:25 12/5/23 10:32 12/5/23 10:38 12/5/23 10:46 Inspector McCarthy McCarthy McCarthy McCarthy McCarthy McCarthy McCarthy McCarthy McCarthy McCarthy McCarthy Donaldson Donaldson McCarthy McCarthy McCarthy McCarthy McCarthy Buenning McCarthy McCarthy McCarthy Descripon of Image Li Staon. Sand ulized as sealant on southwest panel. Li Staon. Bubbling sealant on southwest panel. Li Staon. Sand and fresh sealant on southeast panel. Li Staon. Asphalt repoured on li staon as seal. Li Staon. Overview. Li Staon. Seals and asphalt repour along panels. Li Staon. L100A/B. API 205 guide pin N of P1217 (Ben R TVA reading). API 205 LDAR tag. API 205 LDAR tag. Dripping valve under API 205. DGF L224. L224 from the side. T207 API Skim Oil. Alliance's PHX extender. Dock A sump. Doc A sump visible staining and gaps in sealant. Dock A sump. Tank 515. Visible damage at base of pipe. Dock B sump. Dock B sump. Dock B benzene loading drain trough. EPA Inspection Report - 15 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 23 R0010514.JPG 12/5/23 B Donaldson L500 and L510 Sump. 10:54 24 R0010515.JPG 12/5/23 B Donaldson L500 Sump. 10:54 25 R0010516.JPG 12/5/23 B Donaldson L500 Sump carbon adsorpon system. 10:54 26 R0010517.JPG 12/5/23 B Donaldson L500 Sump cover no sealant along edge of diamond plates. 10:55 27 R0010518.JPG 12/5/23 B Donaldson L500 Sump cover no sealant along edge of diamond plates. 10:55 29 R0010519.JPG 12/5/23 B Donaldson L510 Sump PSV leak tag. 10:56 30 R0010520.JPG 12/5/23 B Donaldson L510 Sump PSV do not enter tag (H2S) placed 12/1/2023. 10:58 31 FLIR0019.JPG 12/5/23 Buenning Sample line drain on T512. 11:00 32 DC_0075.JPG 12/5/23 McCarthy Dock C sump. Visible cracks in seals. 11:02 33 R0010521.JPG 12/5/23 B Donaldson Weatherized pumps at B700 flare knockout drums. 11:05 34 R0010522.JPG 12/5/23 B Donaldson B700 flare knockout drums. 11:15 35 FLIR0020.JPG 12/5/23 Buenning Tank 519 drain to atmosphere. 11:15 36 R0010523.JPG 12/5/23 B Donaldson Corroded plug that fell out during M21 monitoring - VOC 48. 11:27 37 DC_0076.JPG 12/5/23 McCarthy Dock D sump. Visible damage and cracking. Sump cover 11:32 obscured by debris. 38 DC_0076.JPG 12/5/23 McCarthy Dock D sump. Visible damage and cracking. Sump cover 11:32 obscured by debris. 39 R0010524.JPG 12/5/23 B Donaldson Carbon adsorpon system at WWTP. 12:14 40 R0010525.JPG 12/5/23 B Donaldson Carbon adsorpon system at WWTP. 12:16 41 R0010526.JPG 12/5/23 B Donaldson Submerged fill pipe on aeraon basin Tank 360. 12:29 42 R0010527.JPG 12/5/23 B Donaldson DGF L-224 bolted cover panel. 12:49 43 R0010528.JPG 12/5/23 B Donaldson DGF L-224 bolted cover panel. 12:49 44 R0010529.JPG 12/5/23 B Donaldson DGF L-224 bolted cover panel. 12:49 45 DC_0081.JPG 12/5/23 McCarthy B reformer sump. Sand boxes obscure cover and equipment 14:26 visual inspecons. 46 DC_0084.JPG 12/5/23 McCarthy Cracks in concrete at manhole in B reformer. 14:39 EPA Inspection Report - 16 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 47 FLIR0021.JPG 12/5/23 Buenning Tank 208. 14:45 48 DC_0086.JPG 12/5/23 McCarthy OWS Juncon Box 14. 14:50 49 DC_0096.JPG 12/5/23 McCarthy B Reformer. South of pump 327JP506C. Visible cracks and holes. 15:16 50 DC_0101.JPG 12/5/23 McCarthy B Reformer. Visible holes in sealant. 15:19 51 DC_0104.JPG 12/5/23 McCarthy Visible cracks surrounding manhole south of JB-11-51. 15:33 52 R0010530.JPG 12/5/23 B Rosenthal Summa sample taken from L-202 north PSV. 15:40 53 R0010531.JPG 12/5/23 B Rosenthal Summa sample taken from Tank 517 sample/gauge hatch. 16:01 54 R0010532.JPG 12/5/23 B Rosenthal Catch basin by T-513 full of oily debris EPA M21 16:09 measurement 53,000 ppm. 55 DC_0109.JPG 12/5/23 McCarthy Unicracker Sump. Missing bolts around pumps. 16:09 56 R0010533.JPG 12/5/23 B Rosenthal DGF L-223 bolted cover panel. 16:22 57 R0010534.JPG 12/5/23 B Rosenthal DGF L-223 open overfill pipe for water seal. 16:23 58 DC_0110.JPG 12/5/23 McCarthy Unicracker. 320 Juncon Box 4. 16:26 59 DC_0111.JPG 12/5/23 McCarthy Unicracker. 320 Juncon Box 5. 16:28 60 DC_0112.JPG 12/5/23 McCarthy Unicracker. Visible cracks at base of sump. Liquid stains. 16:30 61 DC_0113.JPG 12/5/23 McCarthy Unicracker. Visible cracks and segregaon seam 16:30 between stormwater and OWS. 62 R0010535.JPG 12/5/23 B Rosenthal Li staon summa sample NW plate upper right plate 16:45 facing north. 63 DC_0118.JPG 12/6/23 McCarthy BCGH. Visible cracks, holes, and staining at sump. 9:55 64 FLIR0023.jpg 12/6/23 Buenning Tank 51 water draw. 9:56 65 FLIR0024.jpg 12/6/23 Buenning Tank 104. 10:00 66 FLIR0027.jpg 12/6/23 Buenning Tank 105. 10:18 67 DC_0124.JPG 12/6/23 McCarthy ACGH. Cap southeast of western pump on sump. 10:33 68 DC_0125.JPG 12/6/23 McCarthy Corroded and rusted carbon canisters at NW side of compressor. 10:43 69 R0010537.JPG 12/6/23 B Rosenthal Cracks in sealant and oily stains on BCGH sump cover. 10:55 EPA Inspection Report - 17 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 70 R0010538.JPG 12/6/23 B Rosenthal Sump pump JP-209B cracks in sealant and oily stains base plate. 10:57 71 DC_0126.JPG 12/6/23 McCarthy Open drain from flare knockout pot north of ACGH. 11:02 72 R0010539.JPG 12/6/23 B Rosenthal Cracked sealant on ACGH sump cover. 11:24 73 R0010540.JPG 12/6/23 B Rosenthal Cracked sealant on ACGH sump cover. 11:26 74 R0010541.JPG 12/6/23 B Rosenthal Cracked sealant on ACGH sump cover. 11:26 75 R0010542.JPG 12/6/23 B Rosenthal Cracked sealant on ACGH sump cover. 11:30 76 R0010543.JPG 12/6/23 B Rosenthal Circular plate on sump cover with detectable emissions around 11:35 the edge. 77 R0010544.JPG 12/6/23 B Rosenthal Cracked sealant. 11:36 78 R0010545.JPG 12/6/23 B Rosenthal Cracked sealant on ACGH sump cover. 11:37 79 R0010546.JPG 12/6/23 B Rosenthal Summa sample at the southeast corner of ACGH sump where 12:21 EPA FID flamed out. 80 R0010547.JPG 12/6/23 B Rosenthal Bell trap drain next to ACGH sump. 12:22 81 R0010536.JPG 12/6/23 B Rosenthal Cracks in sealant and oily stains on BCGH sump cover. 12:54 82 DC_0131.JPG 12/6/23 McCarthy Foam seal at inlet of pump at Lab Sump. 13:16 83 FLIR0036.jpg 12/6/23 Buenning Tank 87 sample port. 23,000 ppm. 14:09 84 R0010548.JPG 12/6/23 B Rosenthal Lab blower and stack that vents trench to sump. 14:13 85 R0010549.JPG 12/6/23 B Rosenthal Hatch on lab sump cover. A closed tank with regulated material is 14:17 enclosed within the lab sump. 86 R0010550.JPG 12/6/23 B Rosenthal OWS Juncon Box "GG" in WAAT unit. Missing caulk around 15:13 access plate. EPA inspector measured detectable emissions. 87 R0010551.JPG 12/6/23 B Rosenthal OWS Juncon Box "GG" in WAAT unit. Missing caulk around 15:13 access plate. 88 R0010552.JPG 12/6/23 B Rosenthal OWS Juncon Box Y in WAAT unit. 15:23 89 R0010553.JPG 12/6/23 B Rosenthal OW-10 formerly Box 10 covered in crushed rock. 15:27 90 R0010554.JPG 12/6/23 B Rosenthal Fresh sealant on CV-1 Sump S-101 cover. 16:28 91 R0010555.JPG 12/6/23 B Rosenthal Cracks in sealant and concrete at Sump S-101. 16:32 92 R0010556.JPG 12/6/23 B Rosenthal Fresh sealant around pump on Sump S-101. 16:38 EPA Inspection Report - 18 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 93 R0010557.JPG 12/6/23 B Rosenthal Plugged clean out covered in oily residue. 459-OWS. 16:42 94 DC_0367.JPG 12/7/23 McCarthy A/B Topper. Cracks along seal. 9:47 95 R0010558.JPG 12/7/23 B Rosenthal Gap in sealant (foreground) around the edge of Juncon Box 18. 10:48 Crude Units. Detectable emissions measured at the gap. 96 R0010559.JPG 12/7/23 B Rosenthal OWS Juncon Box 8. Crude Units. 11:00 97 R0010560.JPG 12/7/23 B Rosenthal OWS Juncon Box 8. Crude Units. 11:01 98 R0010561.JPG 12/7/23 B Rosenthal OWS 203 Juncon Box. Pinholes in sealant. 11:06 99 R0010562.JPG 12/7/23 B Rosenthal Juncon box near desalter in A-B Crude Toppers Unit. Detectable 11:12 emissions measured around the edge. 100 DC_0368.JPG 12/7/23 McCarthy Holes in Coker Sump. 13:56 101 R0010563.JPG 12/7/23 B Rosenthal Coker-2 juncon box under construcon covered with a tarp and 15:17 sand. 102 R0010564.JPG 12/7/23 B Rosenthal Coker-2 juncon box with cracks in the concrete. 15:20 103 R0010565.JPG 12/7/23 B Rosenthal Coker-2 juncon box heavily damaged. JB 326-251. Detectable 15:23 emissions. 104 R0010566.JPG 12/7/23 B Rosenthal Coker-2 juncon box heavily damaged. JB 326-251. Detectable 15:23 emissions. 105 R0010567.JPG 12/7/23 B Rosenthal Coker-2 unsealed manhole surrounded by oily residue. 15:25 106 R0010568.JPG 12/7/23 B Rosenthal Coker-2 unsealed manhole surrounded by oily residue. 15:25 107 R0010569.JPG 12/7/23 B Rosenthal Coker-2 unsealed OWS manhole in the background. Sealed 15:29 stormwater drain in the foreground. 108 R0010570.JPG 12/7/23 B Rosenthal Sealant used by facility in Coker-2. 15:29 109 R0010571.JPG 12/7/23 B Rosenthal Coker-2 sump. Hole in pump baseplate. Gap between pump and 15:31 sump cover. Missing bolts in sump cover. No evidence of sealant or gaskets. 110 R0010572.JPG 12/7/23 B Rosenthal Coker-2 sump. Uncontrolled gooseneck vent pipe open to the 15:35 atmosphere. 111 R0010573.JPG 12/7/23 B Rosenthal Coker-2 unsealed OWS manhole in the background. Sealed 15:37 stormwater drain in the foreground. 1Equipment: FLIR GX320, EPA ID Number: C12172; 2 FLIR GF320s, EPA ID Numbers: C0905, C14214; Ricoh WG-6 ID: E04856; E04858. EPA Inspection Report - 19 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspecon Date 12/04/2023-12/07/2023 Appendix 2 Video Log EPA Inspection Report - 20 of 57 Video No.1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 File Name FLIR0009.mp4 MOV_0052.mp4 MOV_0053.mp4 MOV_0054.mp4 FLIR0011.mp4 FLIR0012.mp4 MOV_0055.mp4 MOV_0056.mp4 MOV_0057.mp4 FLIR0010.mp4 FLIR0013.mp4 FLIR0014.mp4 MOV_0356.mp4 MOV_0357.mp4 FLIR0016.mp4 MOV_0358.mp4 MOV_0361.mp4 MOV_0071.mp4 MOV_0362.mp4 MOV_0073.mp4 MOV_0364.mp4 FLIR0017.mp4 Date and Time 12/4/2023 13:47 12/4/2023 13:50 12/4/2023 13:50 12/4/2023 14:05 12/4/2023 14:08 12/4/2023 14:12 12/4/2023 14:15 12/4/2023 14:30 12/4/2023 14:50 12/4/2023 14:55 12/4/2023 15:13 12/4/2023 15:37 12/5/2023 9:50 12/5/2023 9:55 12/5/2023 9:58 12/5/2023 10:20 12/5/2023 10:45 12/5/2023 10:47 12/5/2023 11:00 12/5/2023 11:02 12/5/2023 11:10 12/5/2023 11:26 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspecon Date 12/04/2023-12/07/2023 Inspector Descripon of Video Buenning Donaldson Li Staon. Hydrocarbon emissions from bolt on southwest raised panel. Oily water sewer li staon hydrocarbon emissions. Donaldson Oily water sewer li staon hydrocarbon emissions. Donaldson Oily water sewer li staon hydrocarbon emissions. Buenning Buenning Donaldson Li Staon. Hydrocarbon emissions from bolts on north side of northwest raised panel. Li Staon. Floang roof rim seal hydrocarbon emissions. Rim seal is visibly bent. L100 A/B. Donaldson API 201 PSV 2022P. Donaldson Buenning Buenning Buenning Haynes Hydrocarbon emissions from API 203 PSV 2081 Vacuum breaker. Li Staon. Hydrocarbon emissions from sand covering part of the northwest raised panel at the Li Staon. API L-204. Hydrocarbon emissions from center vacuum breaker. API L-201. Bypass vent. EPA measured 24,800 ppm VOC with Method 21. Hydrocarbon emissions from L510 Sump PVRV. Haynes Buenning Hydrocarbon emissions from L500 carbon adsorpon system outlet. Hydrocarbon emissions from PRD on L-510 sump. Haynes Hydrocarbon emissions from vacuum breaker on Tank 510. Haynes Hydrocarbon emissions from rim seal gap on Tank 514. McCarthy Haynes Tank F12 at Dock B observed with Hydrocarbon emissions from gooseneck vent. Hydrocarbon emissions from catch basin by Tank 513. McCarthy Haynes Dock C Intermient Hydrocarbon emissions from visible crack in sealant. Tank 517. Hydrocarbon emissions from hatch. Buenning Tank 517. Hydrocarbon emissions from hatch. EPA Inspection Report - 21 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspecon Date 12/04/2023-12/07/2023 23 MOV_0366.mp4 12/5/2023 Haynes Tank 517. Hydrocarbon emissions from hatch. 11:30 24 FLIR0018.mp4 12/5/2023 Buenning Tank 512. Hydrocarbon emissions from conservaon vent. 11:50 25 MOV_0078.mp4 12/5/2023 McCarthy B reformer Hydrocarbon emissions observed from 14:25 connector. Note sand boxes. 26 MOV_0082.mp4 12/5/2023 McCarthy B reformer Hydrocarbon emissions observed from cracked 14:39 concrete around manhole south of sump. 27 MOV_0089.mp4 12/5/2023 McCarthy Hydrocarbon emissions observed along seal. 14:46 28 MOV_0091.mp4 12/5/2023 McCarthy OWS Juncon box 14. 14:55 29 MOV_0093.mp4 12/5/2023 McCarthy Hydrocarbon emissions from OWS juncon box 9. 15:12 30 MOV_0094.mp4 12/5/2023 McCarthy C-Reformer. Hydrocarbon emissions from OWS JB9 15:13 cleanout. 31 MOV_0095.mp4 12/5/2023 McCarthy Hydrocarbon emissions from juncon box south of pump 15:16 327JP506C. 32 MOV_0099.mp4 12/5/2023 McCarthy Hydrocarbon emissions from C reformer pump 15:20 327L5H1001. 33 MOV_0100.mp4 12/5/2023 McCarthy Hydrocarbon emissions at the A reformer pump 15:25 315JP108A. 34 MOV_0102.mp4 12/5/2023 McCarthy Hydrocarbon emissions at the A reformer sump with piece 15:27 of plywood being used to cover the sump. 315JP108. 35 FLIR0022.mp4 12/5/2023 Buenning Tank 208. Hydrocarbon emissions from access hatch on 15:43 north side of tank's fixed roof. 36 MOV_0106.mp4 12/5/2023 McCarthy Visible Hydrocarbon emissions from the outlet of the 15:45 second-in-series carbon canister drum at B reformer Sump. 37 MOV_0109.mp4 12/5/2023 McCarthy Hydrocarbon emissions at the Unicracker sump. 16:08 38 MOV_0114.mp4 12/6/2023 McCarthy North Sump BCGH 485 OWS Juncon Box 4 - visible holes 9:55 in seal. 39 MOV_0116.mp4 12/6/2023 McCarthy North Sump BCGH visible holes/defect in seal and 10:06 Hydrocarbon emissions. 40 MOV_0117.mp4 12/6/2023 McCarthy Visible cracks and hydrocarbon emissions at base of east 10:09 pump on north sump BCGH. 41 MOV_0120.mp4 12/6/2023 McCarthy Panel of ACGH sump observed with Hydrocarbon emissions 10:21 along panels/cracked seal. 42 MOV_0123.mp4 12/6/2023 McCarthy Hydrocarbon emissions at the cap on southeast side of 10:33 west pump and panels of ACGH sump. 43 FLIR0026.mp4 12/6/2023 Buenning Tank 104. Hydrocarbon emissions from roof vents on 11:02 southeast side of tank on 12/6/2023. Tank being filled. 44 MOV_0127.mp4 12/6/2023 McCarthy EPA summa canister sample of hydrocarbon emissions 11:16 plume at southeast panel of ACGH. 45 MOV_0128.mp4 12/6/2023 McCarthy Citgo summa canister sample at southeast panel of ACGH. 11:17 EPA Inspection Report - 22 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspecon Date 12/04/2023-12/07/2023 46 FLIR0028.mp4 12/6/2023 Buenning Tank 105. Hydrocarbon emissions from roof vents on 11:17 southeast side of tank. Tank being filled. 47 MOV_0129.mp4 12/6/2023 McCarthy Citgo benzene PID test of Hydrocarbon emissions plume at 11:20 southeast panel of ACGH. 48 FLIR0029.mp4 12/6/2023 Buenning Tank 99. Hydrocarbon emissions from roof vent. 11:31 49 FLIR0030.mp4 12/6/2023 Buenning Tank 55. Hydrocarbon emissions from roof vent on SW side 12:01 of tank. Level 12'3". Tank drawing down. 50 FLIR0032.mp4 12/6/2023 Buenning Tank 42. Hydrocarbon emissions from sample/gauge hatch. 12:38 Citgo Method 21 reading 1,500 ppm VOC then instrument flamed out. 51 FLIR0033.mp4 12/6/2023 Buenning Tank 87. Hydrocarbon emissions from roof vents on 14:56 southwest corner of tank. 52 FLIR0034.mp4 12/6/2023 Buenning Tank 87. Hydrocarbon emissions from sample port, Citgo 15:04 Method 21 reading 23,000 ppm VOC. Liquid dripping from sample port. 53 FLIR0035.mp4 12/6/2023 Buenning Tank 87. Sample port in bare eye view. 15:07 54 MOV_0134.mp4 12/6/2023 McCarthy Crack in concrete east of juncon box for crude vacuum CV- 15:31 1 Sump. 55 FLIR0037.mp4 12/6/2023 Buenning Tank 93. Hydrocarbon emissions from roof vents on 15:57 southwest side of tank. 56 FLIR0038.mp4 12/6/2023 Buenning Tank 52. Hydrocarbon emissions from roof vent on sw side 16:44 of tank. 57 FLIR0039.mp4 12/7/2023 Buenning Tank 49. Hydrocarbon emissions from rim seal on the 11:06 southeast side of the tank's external floang roof. 58 FLIR0040.mp4 12/7/2023 Buenning Tank 104. Hydrocarbon emissions from the northeast roof 11:28 vents. 59 FLIR0041.mp4 12/7/2023 Buenning Tank 104. Hydrocarbon emissions from the east and 11:31 northeast vent. 60 FLIR0046.mp4 12/7/2023 Buenning Tank 1001. View of the IFR through the access hatch on the 14:06 dome. 61 FLIR0047.mp4 12/7/2023 Buenning Tank 9. Hydrocarbon emissions from rim seal on south side. 15:04 62 FLIR0048.mp4 12/7/2023 Buenning Tank 6: Hydrocarbon emissions from pontoon hatch on 15:23 south-southeast side secon of the external floang roof. 63 FLIR0049.mp4 12/7/2023 Buenning Tank 6: Hydrocarbon emissions from pontoon hatch on 15:28 south-southwest side of the external floang roof. 64 MOV_139.mp4 12/7/2023 Haynes Tank 12: Hydrocarbon emissions at rim seal. 15:40 65 MOV_140.mp4 12/7/2023 Haynes Tank 10: Hydrocarbon emissions at rim seal. 15:50 66 MOV_141.mp4 12/7/2023 Haynes Tank 10 Hydrocarbon emissions at rim seal. Rainbow color 15:50 palette. 1Equipment: FLIR GX320, EPA ID Number: C12172; 2 FLIR GF320s, EPA ID Numbers: C0905, C14214. EPA Inspection Report - 23 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Appendix 3 Field Measurement Data EPA Inspection Report - 24 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Waste Management Unit/Unit Area Lift Station Lift Station Lift Station Component Southwest Raised Panel. Seal on corner Southwest Raised Panel. Bolt on southwest corner Pump to the northeast. EPA Measurement in ppm VOC1 70,000 Flameout 5,000 Facility Measurement in ppm VOC Flameout 160,000 13,725 Inspector, Notes, and Observations Schneider. Fresh sealant and sand were visible around the hatches. Schneider. Bolt was not covered with sealant. Video Log No. 1: FLIR0009. Schneider. The base of the pump cover penetration interface. Lift Station Lift Station Southeast Raised Panel. Bolt on northwest corner Southeast Raised Panel. 2,000 9,100 13,770 Rosenthal. -. 20,000 Rosenthal. Sealant around the base of the raised panel/hatch. Lift Station Lift Station Lift Station Lift Station Lift Station Lift Station Lift Station Southeast Raised Panel. Northeast corner base. Northeast Raised Panel. Bolt on northwest corner Northeast Raised Panel. Northeast corner around base Northeast Raised Panel. Northwest corner around base Northeast Raised Panel. Northwest corner around base Northwest Raised Panel Northwest Raised Panel Flameout 90,000 1,000 22,000 1,400 50,000 40,000 10,000 142,000 1,503 Rosenthal. Fresh sealant and sand. Gap visible in sealant. Loukeris. -. Loukeris. -. 76,000 Loukeris. -. 800 Loukeris. -. 160,000 - Haynes. Pinhole in sealant. Haynes. Bolts on the cover. EPA Inspection Report - 25 of 57 Lift Station Lift Station API L-201 API L-201 API L-201 API L-201 API L-201 API L-201 API L-201 API L-202 API L-202 API L-202 API L-202 API L-204 API L-204 Expansion joint around the raised panels Expansion joint around the raised panels Cover OVB Bypass Vent Valve PSV PSV PSV Cover PSV PSV PSV PRV PRV 12,000 3,800 6,900 3,700 27,677 4,800 1,200 4,000 16,000 1,500 7,600 17,000 80,400 5,000 Flameout API L-205 Cover API L-205 Cover API L-205 Cover DGF L-223 DGF L-223 DGF Float Tank F-233 Sump L-500 PRV PRV PRV Outlet of Carbon Drums WWTP Catch Basin 1,400 1,300 680 1,200 600 1,100 2,100 53,000 A Dock Sump A Dock Sump Pump Tank 80,000 20,000 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 2,500 Loukeris. -. 3,000 Loukeris. -. 3,500 4,698 3,378 637 21,703 65,942 1,276 15,459 39,790 53,000 9,436 27,873 10,278 1,343 588 2,232 645 1,400 4,300 31,000 103,000 22,000 Loukeris. Bolt. Loukeris. -. Loukeris. Video Log No. 12: FLIR0014. Loukeris. Valve seat defect. 432-VOC- 0185. Schneider. On south end of API. #2022E Schneider. 3rd PSV from south. #2022C Schneider. 4th PSV from south. #2022B Haynes SE side edge of bolted cover panel. Schneider. 2nd PSV from south. #2042D Schneider 4th PSV from south. #2042B Schneider. #2042A Schneider. 3rd PRV from south. #2082C Schneider. 4th PRV from south. #2082B. Leak tag placed by the facility on 11/30/23. Rosenthal. Near tag 432 PI-1217. Guide Pin on roof plate 3 Rosenthal. 2nd lid from north along east manway. Roof plate Rosenthal. 1st lid from north along east manway. Roof plate Schneider. Pressure side of PRV 1085 Schneider. PRV 2343. Schneider. PRV 2333. Rosenthal. Benzene specific measurement 9 ppm between drums. Video Log No. 14: MOV_0357. Haynes. Catch basin near Tank 513. Had bell trap and full of oily residue. Video Log No. 19 MOV_0362. Schneider. Hydrocarbon odor. Sand around pump penetration. Pump 340. Loukeris. "Old" stilling well. Not gasketed, bolted, or sealed. EPA Inspection Report - 26 of 57 A Dock Sump A Dock Sump B Dock Sump B Dock Sump B Dock Sump B Dock Sump B Dock Sump B Dock Sump B Dock Sump C Dock Slip Sump C Dock Slip Sump C Dock Slip Sump C Dock Slip Sump D Dock Sump D Dock Sump B Reformer Sump B Reformer Sump Tank Tank Secondary Carbon Canister Suction Pump Suction Pump Valve Stem Sump Cover Trough Tank Sump Cover Pump Pump Pump Secondary Carbon Canister Primary Carbon Canister Cover Secondary Carbon Canister 5,000 9,200 1,400 2,500 3,000 3,000 800 1,500 78,000 20,000 10,000 12,000 1,200 617 1,400 12,000 23,000Flameout B Reformer Sump B Reformer Cover Manhole 88,000 Flameout B Reformer ALCOH ALCOH ALCOH Manhole Junction Box Junction Box Junction Box 2,000 1,200 12,000 95,000 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 3,000 9,500 1,100 Loukeris. "Old" stilling well. Not gasketed, bolted, or sealed. Loukeris. "Old" stilling well. Not gasketed, bolted, or sealed. Loukeris. Outlet 3,018 3,000 3,000 3,100 760 60,000 45,000 4,700 8,000 4,000 Schneider. Visibly damaged seal. Schneider. Visibly damaged seal. Schneider. Visibly damaged seal. Schneider. Sump cover sealant damaged and covered with debris. Loukeris. Open trough for residual material from marine loading. Loukeris. F12 Drum. Small uncontrolled tank. Photo Log No. 18: MOV_0071. Schneider. Cracked sealant. 432-OWS- 0005 Schneider. Pump drain to sump open to the atmosphere. Loukeris. Pump drain open to atmosphere. 347 LT 350 Schneider. Tank pump cover penetration 556 1,500 4,500 Schneider. 372-OWS-0006. Facility measured 0 ppm benzene. Loukeris. 372-OWS-0006. Facility measured 0 ppm benzene. Schneider. Cover of OWS sump. 73,000 87,000 66,000 536 Flameout 38,000 Loukeris. Visible emissions from the outlet of the second-in-series carbon canister control. Video Log No. 36: MOV_0106. Loukeris. Circular Plate covering hole for pipe penetrations. Loukeris. Cracked concrete around manhole south of sump. 4 visible cracks around manhole. Schneider. Manhole south of sump. Schneider. Near E-108. Schneider. Junction Box 5. Cracked sealant. Flameouts at several locations. Loukeris. Junction Box 5. EPA Inspection Report - 27 of 57 ALCOH C Reformer C Reformer C Reformer C Reformer C Reformer C Reformer C Reformer C Reformer C Reformer C Reformer C Reformer A Reformer Sump A Reformer Sump A Reformer Sump A Reformer Sump A Reformer Sump Unicracker Unicracker Unicracker Unicracker Unicracker BCGH Sump BCGH Sump BCGH Sump Junction Box Junction Box Junction Box Junction Box Junction Box Junction Box Junction Box Manhole Manhole Cleanout Junction Box Junction Box Cover Cover Pump Pump Piping Pump Pump Junction Box Junction Box Cleanout Cover Cover Cover 4,000 727 70,000 7,000 77,000 Flameout 5,000 55,000 50,000 3,000 Flameout 50,000 12,000 13,000 70,000 55,000 4,900 2,855 18,000 2,300 8,000 860 13,000 20,000 16,000 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 7,800 2,600 163,000 6,000 163,000 127,000 4,100 150,000 53,000 5,000 163,000 150,000 16,000 13,000 Loukeris. Junction Box 5. Concrete cracks. Schneider. 327-OWS-JB-14. Cracked caulking. Schneider. 327-OWS-JB-14. Cracked caulking. Very strong hydrocarbon odors. Schneider. 327-OWS-JB-12. Loukeris. 327-OWS-JB-12. Schneider. 327-OWS-JB-9. Cracked sealant. Loukeris. 327-OWS-JB-9. Loukeris. Concrete expansion joint encircling manhole next to 327-JP-506C. Loukeris. -. Schneider. Sewer cleanout near JB 9. Video Log No. 30: MOV_0094. Schneider. Visibly damaged seal. South of pump. 327-JP-506-C. Schneider. Visibly damaged seal. 327-JP- 506-C. Schneider. A piece of plywood is being used to cover the sump. Video Log No. 34: MOV_0102. Schneider. Hole in the top of the well. 153,000 Schneider. 315-JP-108. 159,000 Loukeris. 315-JP-108A. 127,000 21,100 30,000 12,000 36,000 3,500 9,900 55,000 38,000 Loukeris. Base of vent line to carbon at sump cover penetration. Loukeris. Pump plate bolt. 6 bolts missing-open to atmosphere. Photo Log No. 55: MOV_0108 Schneider. Pump penetration above cover. Loukeris. 320-OWS-JB5. Visible cracks in concrete. Photo Log No. 59. DC_0111 Schneider. Schneider. Near junction box 2. Schneider. Damaged sealant (cracked/pinholes). Schneider. Damaged sealant. Schneider. Damaged sealant. EPA Inspection Report - 28 of 57 BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump BCGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump ACGH Sump WAAT WAAT CV1 CV1 CV1 Sump A Topper Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Cover Junction Box Junction Box Manhole Manhole Cover Manhole 80,000 30,000 13,000 80,000 Flameout 80,000 Flameout Flameout Flameout 8.000 23,000 Flameout Flameout 80,000 80,000 Flameout 80,000 Flameout 86,000 40,000 90,000 7,000 Flameout 5,000 5,000 Flameout Flameout Flameout 90,000 90,000 818 825 15,000 13,000 1,200 1,600 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 146,000 13,000 Flameout 146,000 107,000 68,000 146,000 146,000 143,000 1,200 13,000 145,000 51,000 146,000 2,700 42,000 34,000 20,000 146,000 145,000 13,000 3,200 146,000 6,600 11,000 145,000 146,000 146,000 146,000 146,000 2,800 1,500 18,000 - 4,000 1,600 Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Pump penetration. Schneider. Damaged sealant. ACGH Sump Video Log Nos. 41, 42, 44, 45. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Pump penetration. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. Damaged sealant. Schneider. OWS Box marked "GG". 2 Metal plates with handles that penetrate the plate through unsealed holes. Schneider. OWS Box marked "GG". 2 Metal plates with handles that penetrate the plate through unsealed holes. Schneider. 33H. Damaged seal. Schneider. 33H. Cracked concrete. Schneider. OWS-459-JCT-6. Schneider. Near IFT 004 and VOC tag 0602. EPA Inspection Report - 29 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 A Topper Junction Box 634 2,000 Schneider. 301-OWS-JB-8. A Topper Junction Box 4,200 10,700 Schneider. Near PC 106. Cracked Sealant. Coker 2 Manhole 20,000 24,000 Schneider. Manhole near 3262201. Photo Log No. 103, 104. 1Equipment: Thermo Scientific Toxic Vapor Analyzer 2020. EPA R6 ID Numbers: E04884, S68701; EPA R5 ID Numbers: SL1555, 39304. CAL KIT #1 - TVA Air. EPA Inspection Report - 30 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Appendix 4 Summa Sample Results EPA Inspection Report - 31 of 57 Eastern Research Group 601 Keystone Park Drive Suite 700 Morrisville, NC 27560 January 16, 2024 Shaun Burke TOCOR 2890 Woodbridge Avenue Edison, NJ 08837 Project Name: Citgo Lake Charles Refinery Inspection Dear Shaun Burke, This report contains the analytical results for the sample(s) received under chain(s) of custody by Eastern Research Group on 12/11/23 10:12. Values below the MDL for QC results in this report are recorded as ND, however the actual values are reported in the accompanying Excel report with a "U" flag (Under the detection limit). The actual values are reported in AQS. This test is accredited under the 2016 TNI Standard for Environmental Laboratories (FL DOH Certification # E87673). All analyses were performed as described in the US EPA-approved QAPP, under the contract for National Hazardous Air Pollutant Support (US EPA Contract No. 68HERH22D0002). This cover page is an integral part of this report, and any exceptions or comments are noted on the last page. Release of the data contained in this data package and in the data submitted in the electronic data deliverable, has been authorized by the Program Manager, or the Program Manager's designee as verified by the following signature. The issuance of the final Certificate of Analysis takes precedence over any previous Report. If you have any questions, please contact me at . Sincerely, Randolph Bower Deputy Program Manager The information contained in this report and its attachment(s) are intended only for the use of the individual to whom it is addressed and may contain information that is privileged, confidential, or exempt from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this report is strictly prohibited. If you have received this report in error, please notify randy.bower@erg.com and delete the report without retaining any copies. Page 1 of 19 EPA Inspection Report - 32 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection ANALYTICAL REPORT FOR SAMPLES SampleName Lake Charles Lake Charles Lake Charles Lake Charles LabNumber 3121110-01 3121110-02 3121110-03 3121110-04 Matrix Air Air Air Air Sampled 12/06/23 11:16 12/05/23 14:31 12/05/23 14:56 12/05/23 15:40 Received 12/11/23 10:12 12/11/23 10:12 12/11/23 10:12 12/11/23 10:12 Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 2 of 19 EPA Inspection Report - 33 of 57 EPA Inspection Report - 34 of 57 CERTIFICATE OF ANALYSIS OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Description: Lake Charles Pressure @ Receipt: 0.5 "Hg Comments: ACGH 300+ ppm. Lab ID: 3121110-01 Canister #: 5006 Sampled: 12/06/23 11:16 Received: 12/11/23 10:12 Analyzed: 01/02/24 17:51 Analyte n-Octane Tetrachloroethylene Chlorobenzene Ethylbenzene m,p-Xylene Bromoform Styrene 1,1,2,2-Tetrachloroethane o-Xylene 1,3,5-Trimethylbenzene 1,2,4-Trimethylbenzene m-Dichlorobenzene p-Dichlorobenzene o-Dichlorobenzene 1,2,4-Trichlorobenzene Hexachloro-1,3-butadiene Air Toxics by EPA Compendium Method TO-15 Results MDL ppbv ug/m Flag ppbv ND ND ND 10600 41100 ND ND ND 13100 ND ND ND ND ND ND ND ND ND ND 46,100.00 179,000.00 ND ND ND 57,000.00 ND ND ND ND ND ND ND XC, U XC, U XC, U D, XC, E D, XC, E XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U XC, U XC, U 774 258 246 390 1250 324 819 570 705 948 960 1110 1100 1090 2380 1090 Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 4 of 19 EPA Inspection Report - 35 of 57 EPA Inspection Report - 36 of 57 CERTIFICATE OF ANALYSIS OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke P FAX: FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Description: Lake Charles Pressure @ Receipt: 2.5 "Hg Comments: L-202 north PRV 99,000 ppm. Lab ID: 3121110-02 Canister #: 5021 Sampled: 12/05/23 14:31 Received: 12/11/23 10:12 Analyzed: 01/02/24 20:05 Analyte n-Octane Tetrachloroethylene Chlorobenzene Ethylbenzene m,p-Xylene Bromoform Styrene 1,1,2,2-Tetrachloroethane o-Xylene 1,3,5-Trimethylbenzene 1,2,4-Trimethylbenzene m-Dichlorobenzene p-Dichlorobenzene o-Dichlorobenzene 1,2,4-Trichlorobenzene Hexachloro-1,3-butadiene Air Toxics by EPA Compendium Method TO-15 Results MDL ppbv ug/m Flag ppbv ND ND ND 4390 15000 ND ND ND 4930 ND ND ND ND ND ND ND ND ND ND 19,100.00 65,300.00 ND ND ND 21,500.00 ND ND ND ND ND ND ND XC, U XC, U XC, U XC, D, E D, XC, E XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U XC, U XC, U 327 109 104 165 530 137 346 241 298 401 406 468 464 462 1000 460 Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 6 of 19 EPA Inspection Report - 37 of 57 EPA Inspection Report - 38 of 57 CERTIFICATE OF ANALYSIS OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Description: Lake Charles Lab ID: 3121110-03 Pressure @ Receipt: 3.0 "Hg Canister #: 5022 Comments: Tank 517 (TR-517) Hatch 18,000 ppm. Sampled: 12/05/23 14:56 Received: 12/11/23 10:12 Analyzed: 01/02/24 21:11 Analyte n-Octane Tetrachloroethylene Chlorobenzene Ethylbenzene m,p-Xylene Bromoform Styrene 1,1,2,2-Tetrachloroethane o-Xylene 1,3,5-Trimethylbenzene 1,2,4-Trimethylbenzene m-Dichlorobenzene p-Dichlorobenzene o-Dichlorobenzene 1,2,4-Trichlorobenzene Hexachloro-1,3-butadiene Air Toxics by EPA Compendium Method TO-15 Results MDL ppbv ug/m Flag ppbv ND ND ND 3170 15100 ND ND ND 5310 ND ND ND ND ND ND ND ND ND ND 13,800.00 65,700.00 ND ND ND 23,100.00 ND ND ND ND ND ND ND XC, U XC, U XC, U D, XC, E D, XC, E XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U XC, U XC, U 167 55.7 53.1 84.2 271 70.0 177 123 152 205 207 239 237 236 513 235 Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 8 of 19 EPA Inspection Report - 39 of 57 CERTIFICATE OF ANALYSIS OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Description: Lake Charles Lab ID: 3121110-04 Pressure @ Receipt: 3.5 "Hg Canister #: 5015 Comments: Lift Station-NW plate upper right bolt facing north 149,000 pp Sampled: 12/05/23 15:40 Received: 12/11/23 10:12 Analyzed: 01/02/24 22:17 Analyte Dichlorodifluoromethane Chloromethane Dichlorotetrafluoroethane Vinyl chloride 1,3-Butadiene Ethylene oxide Bromomethane Chloroethane Acetonitrile Acrolein Trichlorofluoromethane Acrylonitrile 1,1-Dichloroethene Dichloromethane Carbon Disulfide Trichlorotrifluoroethane trans-1,2-Dichloroethylene 1,1-Dichloroethane Methyl tert-Butyl Ether Chloroprene cis-1,2-Dichloroethylene Bromochloromethane Chloroform Ethyl tert-Butyl Ether 1,2-Dichloroethane 1,1,1-Trichloroethane Benzene Carbon Tetrachloride tert-Amyl Methyl Ether 1,2-Dichloropropane Ethyl Acrylate Bromodichloromethane Trichloroethylene Methyl Methacrylate cis-1,3-Dichloropropene Methyl Isobutyl Ketone trans-1,3-Dichloropropene 1,1,2-Trichloroethane Toluene Dibromochloromethane 1,2-Dibromoethane Air Toxics by EPA Compendium Method TO-15 Results MDL ppbv ug/m Flag ppbv ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 131000 419,000.00 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 153000 578,000.00 ND ND ND ND XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U D, XC, E XC, U XC, U 97.5 157 84.9 82.8 355 570 345 219 533 1330 153 187 255 378 271 339 67.8 229 163 198 211 146 216 144 187 154 163 121 203 347 126 143 110 533 57.4 933 133 64.5 245 310 107 Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 9 of 19 EPA Inspection Report - 40 of 57 CERTIFICATE OF ANALYSIS OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: : FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Description: Lake Charles Lab ID: 3121110-04 Pressure @ Receipt: 3.5 "Hg Canister #: 5015 Comments: Lift Station-NW plate upper right bolt facing north 149,000 pp Sampled: 12/05/23 15:40 Received: 12/11/23 10:12 Analyzed: 01/02/24 22:17 Analyte n-Octane Tetrachloroethylene Chlorobenzene Ethylbenzene m,p-Xylene Bromoform Styrene 1,1,2,2-Tetrachloroethane o-Xylene 1,3,5-Trimethylbenzene 1,2,4-Trimethylbenzene m-Dichlorobenzene p-Dichlorobenzene o-Dichlorobenzene 1,2,4-Trichlorobenzene Hexachloro-1,3-butadiene Air Toxics by EPA Compendium Method TO-15 Results MDL ppbv ug/m Flag ppbv ND ND ND 9600 33300 ND ND ND 11600 ND ND ND ND ND ND ND ND ND ND 41,800.00 145,000.00 ND ND ND 50,500.00 ND ND ND ND ND ND ND XC, U XC, U XC, U D, XC, E D, XC, E XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U XC, U XC, U 416 139 132 210 675 174 441 307 379 510 516 595 591 587 1280 586 Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 10 of 19 EPA Inspection Report - 41 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units Source Result RPD RPD Limit Air Toxics by EPA Compendium Method TO-15 - Quality Control Batch B3L2803 - Summa Canister Prep Blank (B3L2803-BLK1) Prepared: 12/21/23 Dichlorodifluoromethane ND ppbv Chloromethane ND ppbv Dichlorotetrafluoroethane ND ppbv Vinyl chloride ND ppbv 1,3-Butadiene ND ppbv Ethylene oxide ND ppbv Bromomethane ND ppbv Chloroethane ND ppbv Acetonitrile ND ppbv Acrolein ND ppbv Trichlorofluoromethane ND ppbv Acrylonitrile ND ppbv 1,1-Dichloroethene ND ppbv Dichloromethane ND ppbv Carbon Disulfide ND ppbv Trichlorotrifluoroethane ND ppbv trans-1,2-Dichloroethylene ND ppbv 1,1-Dichloroethane ND ppbv Methyl tert-Butyl Ether ND ppbv Chloroprene ND ppbv cis-1,2-Dichloroethylene ND ppbv Bromochloromethane ND ppbv Chloroform ND ppbv Ethyl tert-Butyl Ether ND ppbv 1,2-Dichloroethane ND ppbv 1,1,1-Trichloroethane ND ppbv Benzene 0.0117 ppbv Carbon Tetrachloride ND ppbv tert-Amyl Methyl Ether ND ppbv 1,2-Dichloropropane ND ppbv Ethyl Acrylate ND ppbv Bromodichloromethane ND ppbv Trichloroethylene ND ppbv Methyl Methacrylate ND ppbv cis-1,3-Dichloropropene ND ppbv Methyl Isobutyl Ketone ND ppbv trans-1,3-Dichloropropene ND ppbv Analyzed: 01/02/24 Notes U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 11 of 19 EPA Inspection Report - 42 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units Source Result RPD RPD Limit Air Toxics by EPA Compendium Method TO-15 - Quality Control Batch B3L2803 - Summa Canister Prep Blank (B3L2803-BLK1) Continued Prepared: 12/21/23 Analyzed: 01/02/24 1,1,2-Trichloroethane ND ppbv Toluene 0.0267 ppbv Dibromochloromethane ND ppbv 1,2-Dibromoethane ND ppbv n-Octane ND ppbv Tetrachloroethylene ND ppbv Chlorobenzene ND ppbv Ethylbenzene ND ppbv m,p-Xylene ND ppbv Bromoform ND ppbv Styrene ND ppbv 1,1,2,2-Tetrachloroethane ND ppbv o-Xylene ND ppbv 1,3,5-Trimethylbenzene ND ppbv 1,2,4-Trimethylbenzene ND ppbv m-Dichlorobenzene ND ppbv p-Dichlorobenzene ND ppbv o-Dichlorobenzene ND ppbv 1,2,4-Trichlorobenzene ND ppbv Hexachloro-1,3-butadiene ND ppbv Duplicate (B3L2803-DUP1) Dichlorodifluoromethane Chloromethane Dichlorotetrafluoroethane Vinyl chloride 1,3-Butadiene Ethylene oxide Bromomethane Chloroethane Acetonitrile Acrolein Trichlorofluoromethane Acrylonitrile 1,1-Dichloroethene Dichloromethane Carbon Disulfide Trichlorotrifluoroethane Source: 3121110-01 ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv ND ppbv Prepared: 12/06/23 Analyzed: 01/02/24 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 Notes U U U U U U U U U U U U U U U U U U U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 12 of 19 EPA Inspection Report - 43 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units Source Result RPD RPD Limit Air Toxics by EPA Compendium Method TO-15 - Quality Control Batch B3L2803 - Summa Canister Prep Duplicate (B3L2803-DUP1) Continued Source: 3121110-01 Prepared: 12/06/23 Analyzed: 01/02/24 trans-1,2-Dichloroethylene ND ppbv ND 25 1,1-Dichloroethane ND ppbv ND 25 Methyl tert-Butyl Ether ND ppbv ND 25 Chloroprene ND ppbv ND 25 cis-1,2-Dichloroethylene ND ppbv ND 25 Bromochloromethane ND ppbv ND 25 Chloroform ND ppbv ND 25 Ethyl tert-Butyl Ether ND ppbv ND 25 1,2-Dichloroethane ND ppbv ND 25 1,1,1-Trichloroethane ND ppbv ND 25 Benzene 56100 ppbv 56,600.00 0.895 25 Carbon Tetrachloride ND ppbv ND 25 tert-Amyl Methyl Ether ND ppbv ND 25 1,2-Dichloropropane ND ppbv ND 25 Ethyl Acrylate ND ppbv ND 25 Bromodichloromethane ND ppbv ND 25 Trichloroethylene ND ppbv ND 25 Methyl Methacrylate ND ppbv ND 25 cis-1,3-Dichloropropene ND ppbv ND 25 Methyl Isobutyl Ketone ND ppbv ND 25 trans-1,3-Dichloropropene ND ppbv ND 25 1,1,2-Trichloroethane ND ppbv ND 25 Toluene 90500 ppbv 90,600.00 0.142 25 Dibromochloromethane ND ppbv ND 25 1,2-Dibromoethane ND ppbv ND 25 n-Octane ND ppbv ND 25 Tetrachloroethylene ND ppbv ND 25 Chlorobenzene ND ppbv ND 25 Ethylbenzene 10500 ppbv 10,600.00 1.04 25 m,p-Xylene 40600 ppbv 41,100.00 1.21 25 Bromoform ND ppbv ND 25 Styrene ND ppbv ND 25 1,1,2,2-Tetrachloroethane ND ppbv ND 25 o-Xylene 12900 ppbv 13,100.00 1.19 25 1,3,5-Trimethylbenzene ND ppbv ND 25 1,2,4-Trimethylbenzene ND ppbv ND 25 m-Dichlorobenzene ND ppbv ND 25 Notes XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U XC, U XC, U D, XC, E D, XC, E XC, U XC, U XC, U D, XC, E XC, U XC, U XC, U Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 13 of 19 EPA Inspection Report - 44 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units Source Result RPD RPD Limit Air Toxics by EPA Compendium Method TO-15 - Quality Control Batch B3L2803 - Summa Canister Prep Duplicate (B3L2803-DUP1) Continued Source: 3121110-01 Prepared: 12/06/23 Analyzed: 01/02/24 p-Dichlorobenzene ND ppbv ND 25 o-Dichlorobenzene ND ppbv ND 25 1,2,4-Trichlorobenzene ND ppbv ND 25 Hexachloro-1,3-butadiene ND ppbv ND 25 Notes XC, U XC, U XC, U XC, U Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 14 of 19 EPA Inspection Report - 45 of 57 EPA Inspection Report - 46 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units % Difference Limit (%) Air Toxics by EPA Compendium Method TO-15 - Quality Control Sequence 2312076 Calibration Check (2312076-CCV1) Continued cis-1,3-Dichloropropene 1.17 Methyl Isobutyl Ketone 1.14 trans-1,3-Dichloropropene 1.13 1,1,2-Trichloroethane 1.22 Toluene 1.30 Dibromochloromethane 1.35 1,2-Dibromoethane 1.37 n-Octane 1.26 Tetrachloroethylene 1.40 Chlorobenzene 1.36 Ethylbenzene 1.32 m,p-Xylene 2.57 Bromoform 1.28 Styrene 1.22 1,1,2,2-Tetrachloroethane 1.31 o-Xylene 1.34 1,3,5-Trimethylbenzene 1.21 1,2,4-Trimethylbenzene 1.26 m-Dichlorobenzene 1.35 p-Dichlorobenzene 1.34 o-Dichlorobenzene 1.36 1,2,4-Trichlorobenzene 1.32 Hexachloro-1,3-butadiene 1.33 ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv Prepared: 12/28/23 11.6 9.1 7.0 16.7 24.4 29.6 31.8 21.6 33.9 30.4 27.4 24.2 23.5 16.5 25.7 28.1 16.4 20.3 28.9 28.4 29.8 22.4 22.7 Analyzed: 01/02/24 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 Calibration Check (2312076-CCV2) Dichlorodifluoromethane Chloromethane Dichlorotetrafluoroethane Vinyl chloride 1,3-Butadiene Ethylene oxide Bromomethane Chloroethane Acetonitrile Acrolein 1.14 1.08 1.15 1.13 0.992 0.899 1.19 1.17 1.03 1.08 ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv ppbv Prepared: 12/28/23 10.4 5.5 11.4 9.4 -4.5 -6.0 14.9 12.1 -1.2 6.1 Analyzed: 01/02/24 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 Notes Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 16 of 19 EPA Inspection Report - 47 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units % Difference Limit (%) Air Toxics by EPA Compendium Method TO-15 - Quality Control Sequence 2312076 Calibration Check (2312076-CCV2) Continued Trichlorofluoromethane 1.18 Prepared: 12/28/23 ppbv 13.5 Acrylonitrile 1.21 ppbv 8.5 1,1-Dichloroethene 1.14 ppbv 9.3 Dichloromethane 1.12 ppbv 7.9 Carbon Disulfide 1.25 ppbv 14.8 Trichlorotrifluoroethane 1.16 ppbv 12.4 trans-1,2-Dichloroethylene 1.20 ppbv 15.0 1,1-Dichloroethane 1.13 ppbv 9.0 Methyl tert-Butyl Ether 1.14 ppbv 9.5 Chloroprene 0.999 ppbv -4.3 cis-1,2-Dichloroethylene 1.12 ppbv 7.5 Bromochloromethane 1.16 ppbv 12.1 Chloroform 1.18 ppbv 11.9 Ethyl tert-Butyl Ether 1.05 ppbv 1.0 1,2-Dichloroethane 1.13 ppbv 9.2 1,1,1-Trichloroethane 1.11 ppbv 7.7 Benzene 1.13 ppbv 7.9 Carbon Tetrachloride 1.13 ppbv 8.2 tert-Amyl Methyl Ether 1.07 ppbv 3.4 1,2-Dichloropropane 1.08 ppbv 3.6 Ethyl Acrylate 0.998 ppbv -4.9 Bromodichloromethane 1.11 ppbv 7.1 Trichloroethylene 1.13 ppbv 8.4 Methyl Methacrylate 0.917 ppbv -12.2 cis-1,3-Dichloropropene 1.08 ppbv 3.3 Methyl Isobutyl Ketone 1.03 ppbv -1.0 trans-1,3-Dichloropropene 1.04 ppbv -1.2 1,1,2-Trichloroethane 1.16 ppbv 10.3 Toluene 1.07 ppbv 2.5 Dibromochloromethane 1.12 ppbv 7.6 1,2-Dibromoethane 1.16 ppbv 11.3 n-Octane 1.04 ppbv 0.4 Tetrachloroethylene 1.18 ppbv 12.6 Chlorobenzene 1.14 ppbv 9.5 Analyzed: 01/02/24 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 Notes Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 17 of 19 EPA Inspection Report - 48 of 57 OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: CERTIFICATE OF ANALYSIS FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Analyte Result Units % Difference Limit (%) Air Toxics by EPA Compendium Method TO-15 - Quality Control Sequence 2312076 Calibration Check (2312076-CCV2) Continued Ethylbenzene 1.11 Prepared: 12/28/23 ppbv 6.6 m,p-Xylene 2.14 ppbv 3.5 Bromoform 1.09 ppbv 4.5 Styrene 1.01 ppbv -3.2 1,1,2,2-Tetrachloroethane 1.15 ppbv 9.7 o-Xylene 1.11 ppbv 6.0 1,3,5-Trimethylbenzene 0.978 ppbv -6.3 1,2,4-Trimethylbenzene 1.04 ppbv -1.4 m-Dichlorobenzene 1.13 ppbv 8.3 p-Dichlorobenzene 1.13 ppbv 8.1 o-Dichlorobenzene 1.13 ppbv 8.0 1,2,4-Trichlorobenzene 1.14 ppbv 5.7 Hexachloro-1,3-butadiene 1.08 ppbv -0.2 Analyzed: 01/02/24 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 Notes Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 18 of 19 EPA Inspection Report - 49 of 57 CERTIFICATE OF ANALYSIS OECA 2890 Woodbridge Avenue Edison, NJ 08837 ATTN: Shaun Burke PHONE: FAX: FILE #: 0453.14.003.120 REPORTED: 01/16/24 16:10 SUBMITTED: 12/11/23 AQS SITE CODE: SITE CODE: Citgo Lake Charles Refinery Inspection Notes and Definitions XC Canister certification expired. U Under Detection Limit E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate (CLP E-flag). D This result obtained by dilution. ND Analyte NOT DETECTED NR Not Reported MDL Method Detection Limit RPD Relative Percent Difference Note: This test is accredited under the 2016 TNI Standard; however the following analytes are not accredited: acetylene, bromodichloroethane, dichlorotetrafluoromethane, ethyl tert butyl ether, n-octane, tert amyl methyl ether, trichlorofluoroethane, and bromochloromethane. Eastern Research Group The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 19 of 19 EPA Inspection Report - 50 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Appendix 5 Requested Information EPA Inspection Report - 51 of 57 Tanks Testing Request 1. Measure the Lower Explosive Limit ("LEL") in the headspace between the IFR and fixed roof for Tank 208. a. Follow the procedures below when measuring the LEL in the headspace between the IFR and the fixed roof for each IFR tank: i.) The tests shall be conducted by lowering one end of weighted Teflon tubing (the sample inlet) while the opposite end is secured to an LEL meter with data logging capability. The sample inlet must reach within three (3) feet of the top of each IFR and shall be free of any kinks, crimps, or knots during the sampling protocol. ii.) The LEL meter shall be calibrated with methane prior to use, and the date and time shall be set to local time. iii.) LEL measurements shall be conducted when the wind speed is less than five (5) miles per hour. The wind speed shall be recorded before and after LEL measurements. iv.) Logging of the LEL measurements shall be in no greater than one (1) minute intervals and measurements shall be done for thirty-five (35) minutes. v.) During sampling, the IFR shall not be in motion and the product temperature shall be recorded. EPA Inspection Report - 52 of 57 Tanks Document Request For each above-ground storage tank storing product with a maximum true vapor pressure greater than 0.5 psi, have available (2 copies - most items can be compiled in a table): 1. Tank number and type of product stored. 2. Date of construction of tank. 3. Diameter of tank. 4. Height of tank. 5. Volume capacity of tank (gallons/barrels). 6. Type of control device (external/internal floating, closed vent system and control device, etc.). 7. Type of floating roof (external, internal, domed, etc.), if applicable, and floating roof construction type (e.g., steel full contact, aluminum skin and pontoon, etc.). 8. Deck seam type (welded, bolted), if applicable. 9. Type of floating rim seals (both primary and secondary, if applicable). 10. Type of floating roof support (legs/cable suspended), if applicable. 11. Date of installation of the floating roof, if applicable. 12. Date of last out of service, or top-side, floating roof inspection, if applicable. 13. Date of last primary seal inspection for tanks with an external floating roof. 14. List of applicable CAA regulations by tank, including group category (Group 1 or Group 2) under MACT Subpart CC. 15. Facility map labelling the locations and ID number of each tank. EPA Inspection Report - 53 of 57 Wastewater Document Request 1. Provide a list, age, and description of all wastewater management/treatment units including, but not limited to, desalters, sour water strippers, water washers, wastewater tanks, neutralization basins, dissolved gas floatation units, and oil/water separators. 2. Provide a list of all IDS within each process unit subject to BWON or QQQ. Diagrams indicating which specific components within every IDS subject to QQQ. 3. The last six Part 60 Subpart QQQ semiannual reports. 4. The last five Part 61 Subpart FF report annual reports-with the included information on routine waste and maintenance waste in an editable Microsoft Excel format-xlsm, xls, or xlsx. 5. Inspection (visual and Method 21) and repair records going back five years for all BWON and/or QQQ-regulated waste management units (individual drain systems, oil-water separators, etc.). If any part this request is maintained in a database, provide a *.BAK of the database. 6. BWON Carbon drum control device monitoring records for last three years (if applicable). 7. Supporting documentation for the reported uncontrolled benzene waste streams. 8. Continuous compliance monitoring data and design evaluation or performance test records for any control device or treatment system used to comply with BWON and/or QQQ. 9. Engineering design documentation for control equipment, which may include covers, all openings and closed vent systems subject to NDE, as well as control devices that are installed on the waste management unit or treatment processes managing benzene waste. 10. Process flow diagram of the oily-water sewer and wastewater treatment system, including inflows from each process unit, any catch basins, lift stations, junction boxes, tanks, oil-water separators, treatment processes, etc. Indicate on drawing which portions are subject to BWON or QQQ. 11. The latest End-of-Line Sampling Plan for each Plant in the refinery, if applicable. 12. BWON and QQQ training manual used by facility personnel or contractors for implementing the respective programs at the facility. 13. Last API 653 and primary seal gap inspection for each floating roof tank subject to BWON. EPA Inspection Report - 54 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Appendix 6 Storage Tank Observations EPA Inspection Report - 55 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Tank # Contents Tank Type Photo Log No.1 Video Log No.1 515 DAF Float EFR 19 (FLIR0016) 22 (FLIR0017) Observations: 12/5/2023: Hydrocarbon emissions were observed by EPA inspectors using optical gas imaging (OGI) from rim seal on northeast and south side of EFR. Broken vacuum breaker. Tank # Contents Tank Type Photo Log No. Video Log No. 517 Wastewater IFR 53 21,23 (MOV_0364, MOV_0366,) Observations: 12/5/2023: Hatch was not in closed position. Facility measurement of 14,522 ppm VOC observed at edge of hatch. Citgo Method 21 reading 3,000 ppm VOC. Tank # Contents Tank Type Photo Log No. Video Log No. 512 Skim Oil Rundown EFR 31 (FLIR0019) 24 (FLIR0018) Observations: 12/5/2023: Hydrocarbon emissions from conservation vent. Sample line drain open to the atmosphere. Tank # Contents Tank Type Photo Log No. Video Log No. 208 Benzene IFR - 35 (FLIR0022) Observations: 12/5/2023: Hydrocarbon emissions from access hatch on north side of tank's fixed roof. Tank # Contents Tank Type Photo Log No. Video Log No. 104 Slop Oil EFR - 43 (FLIR0026) Observations: 12/6/2023: Hydrocarbon emissions from roof vents on southeast side of tank on 12/6/2023. Tank being filled. Aluminum pontoon design. Tank # Contents Tank Type Photo Log No. Video Log No. 105 Sour Crude IFR - 46 (FLIR0028) Observations: 12/6/2023: Hydrocarbon emissions from roof vents on southeast side of tank. Tank being filled. Aluminum pontoon design. Tank # Contents Tank Type Photo Log No. Video Log No. 99 Mixed Crude IFR - 48 (FLIR0029) Observations: 12/6/2023: Hydrocarbon emissions from roof vent. Odor downwind of tank. Level 7'8" Tank # Contents Tank Type Photo Log No. Video Log No. 55 Slop Oil IFR - 49 (FLIR0030) Observations: 12/6/2023: Hydrocarbon emissions from roof vent on SW side of tank. Level 12'3". Tank drawing down. Aluminum pontoon design. Tank # 42 Contents Reformate Tank Type IFR Photo Log No. - Video Log No. 50 (FLIR0032) Observations: 12/6/2023: Hydrocarbon emissions from sample/gauge hatch. Citgo Method 21 reading 1,500 ppm VOC then instrument flamed out. The access hatch to see vapor space was bolted. EPA Inspection Report - 56 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Tank # Contents Tank Type Photo Log No. Video Log No. 87 Reformate IFR 83 (FLIR0036) 51, 52, 53 (FLIR0033, FLIR0034, FLIR0035) Observations: 12/6/2023: Hydrocarbon emissions from roof vents on southwest corner of tank. Emissions from sample port, Citgo Method 21 reading 23,000 ppm VOC. Light odor. Tank level 21'2". Steel Pontoon design. Tank # Contents Tank Type Photo Log No. Video Log No. 88 Naptha IFR - - Observations: 12/6/2023: Controlled with nitrogen blanket system. No access hatch readily visible. Citgo provided documents that identify this tank as a steel pontoon IFR constructed in 1943. Tank # Contents Tank Type Photo Log No. Video Log No. 93 Naptha Fixed Roof - 55 (FLIR0037) Observations: 12/6/2023: Hydrocarbon emissions from roof vents on southwest side of tank. Tank drawing down. Tank # Contents Tank Type Photo Log No. Video Log No. 52 Gasoline IFR - 56 (FLIR0038) Observations: 12/6/2023: Hydrocarbon emissions from roof vent on sw side of tank. Tank drawing down. Small openings for performing through hatch visual inspections. Steel pontoon design. Tank # Contents Tank Type Photo Log No. Video Log No. 49 Gasoline EFR - 57 (FLIR0039) Observations: 12/7/2023: Hydrocarbon emissions from rim seal on the southeast side of the tank's external floating roof. Tank # Contents Tank Type Photo Log No. Video Log No. 104 Slop Oil EFR - 58, 59 (FLIR0040, FLIR0041) Observations: 12/7/2023: Hydrocarbon emissions from east and northeast roof vent on 12/7/2023. Odor. Emissions were also observed on 12/6/2023 at this tank. See above. Tank # Contents Tank Type Photo Log No. Video Log No. 9 Crude EFR - 61 (FLIR0047) Observations: 12/7/2023: Hydrocarbon emissions from rim seal on south side. Tank drawing down. Tank # Contents Tank Type Photo Log No. Video Log No. 6 Naptha EFR - 62, 63 (FLIR0048, FLIR0049) Observations: 12/7/2023:(1) Hydrocarbon emissions from pontoon hatch on south-southeast side section of the external floating roof. (2) Hydrocarbon emissions from pontoon hatch on south- southwest side of the external floating roof. Tank # Contents Tank Type Photo Log No. 12 Gasoline EFR - Observations: 12/7/2023: EHydrocarbon emissions from the rim seal. Video Log No. 64 (MOV_0149) EPA Inspection Report - 57 of 57 Citgo Petroleum Corp / Lake Charles Manufacturing Complex Inspection Date 12/04/2023-12/07/2023 Tank # Contents Tank Type Photo Log No. Video Log No. 10 Gasoline EFR - 65, 66 (MOV_0150, MOV_0151) Observations: 12/7/2023: Hydrocarbon emissions from the rim seal. 1Equipment: FLIR GX320, EPA ID Number: C12172; 2 FLIR GF320s, EPA ID Numbers: C0905, C14214; Ricoh WG-6 ID: E04856; E04858.