Document pmymm064Mp8Gnkn6wEeqD5eLj

Uinta Wax Operating, LLC - Uinta Basin, Utah Well Pads On-Site Partial Compliance Evaluations (PCE) Inspection Dates: Inspection Report Date: Inspection Report Prepared By: Inspection Report Reviewed By: EPA Representatives: Company Representatives: State Representatives: Tribal Representatives: Parent Company Name: Parent Company Address: Facilities County/State Location: EPA Region: Specific Facility Information: 10/3/2022 and 10/4/2022 11/2/2022 Sara Loiacono, US EPA Digitally signed by SARA SARA LOIACONO LOIACONO Date: 2022.11.02 15:02:29 -06'00' Scott Patefield, Manager, US EPA Region 8, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch SCOTT Digitally signed by SCOTT PATEFIELD PATEFIELD Date: 2022.11.03 07:55:08 -06'00' Inspectors from EPA Region 8, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch x Sara Loiacono, Physical Scientist x Youn Joo Kim, Life Scientist Jason Lachance, Senior Facilities Engineer, Finley Resources Inc.1 Lynn Hadlock, Environmental Foreman, Finley Resources Inc.1 N/A Mike Natchees, Director, Air Quality Program, Ute Indian Tribe Marie Kaufusi, Air Quality Program, Ute Indian Tribe Lonnie Favel, Air Quality Program, Ute Indian Tribe Monaco Weidner, Air Quality Program, Ute Indian Tribe Uinta Wax Operating, LLC 5128 Apache Plume Road, Suite 30 Fort Worth, Texas 76109 Uintah County, Utah Region 8 See Table 1, p. 2 Inspection Information As part of a regional effort to evaluate emissions from tanks, operation of combustion devices, and to assess compliance with applicable regulations and requirements for storage vessels and combustion devices (e.g. NSPS OOOO, NSPS OOOOa), personnel from the United States Environmental Protection Agency (EPA) and the Ute Indian Tribe Air Quality Program visited several Uinta Wax Operating, LLC (UWO) well pads in the Uinta Basin, Utah. Inspectors used audio, visual, and olfactory (AVO) observations and optical gas imaging (OGI) cameras to detect improperly-operating control devices and emissions from tanks and combustion sources. Table 1, on page 2, lists the well pads inspected. 1 It is Ms. Loiacono's understanding that Finley Resources, LLC, is the official employer of Mr. Lachance and Mr. Hadlock's, but as part of their roles, both employees also perform work for Uinta Wax Operating, LLC. Page 1 of 10 Site Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Inspection Date 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 Table 1 - Facility Information Facility Name/Site ID Latitude Ute Tribal 30-01-4-3E Ute Tribal 29-04-4-3E Ute Tribal 20-13-4-3E Ute Tribal 19-16-4-3E Ute Tribal 2-13-4-2E-H1 Ute Tribal 3-35-2-3-2E-H1 Ute Tribal 05-13-5-3E Ute Tribal 07-08-5-3E Lamb Tribal 08-04-5-3E Ute Tribal 01-16-5-2E Ute Tribal 12-01-5-2E Ute Tribal 36-16-4-2E Ute Tribal 36-09-4-2E Ute Tribal 31-13-4-3E Ute Tribal 15-16-4-2E Ute Tribal 4-32-3-2E Ute Tribal 14-28-3-2E-H1 Ute Tribal 15-22-15-3-1E-H1 Ute Waratza 5-23-3-1E Ute Tribal 4-23-3-1W-H1 RP14N-31W-H7WS Ute Tribal 2-23-3-1W Ute Tribal 2-23-3-1W-H1 Ute Tribal 13-13-3-1W-H1 Ute Tribal 3-24-3-1W-H1 Ute Tribal 2-24-3-1W-H1 40.1151104 40.140286 40.183798 40.0711129 40.0720848 40.0869477 40.130642 40.184452 40.187786 40.198327 40.209662 40.213108 40.213731 40.214161 40.21351 40.214395 40.212853 Longitude -109.6875387 -109.713497 -109.739527 -109.6933305 -109.7108201 -109.7098952 -109.771226 -109.800232 -109.776186 -109.871103 -109.857425 -109.970215 -109.961346 -109.959083 -109.95174 -109.949079 -109.941993 Well API ID(s) 4304756705 4304756704 4304756702 4304756700 4304754751 4304754740 4304756677 4304756674 4304756675 4304756673 4302756671 4304756660 4304756658 4304756657 4304752208 4304752194 4304753779 4304755363 4304753824 4304753818 4304755898 4304753817 4304754709 4304753819 4304754708 4304753815 In general, the inspection team used the following approach for the site inspections: 1. Take a video in visual mode of an overview of the site operations and scan the site for safety issues using the OGI camera in high-sensitivity mode (HSM). 2. Take a photograph of the site/Well ID sign(s). 3. Make notations about the site operation including the number of each major type of site process equipment present (e.g., number of separators/heater treaters, number of tanks, number and type of tank emission control devices, etc.). 4. Note any AVO indications of emissions from the tanks, closed vent system, and control devices, and note any AVO indications that the control device(s) were not functioning properly. 5. Survey site operations using OGI (auto, manual, and/or high-sensitivity modes), detecting emissions escaping from tanks, closed vent system, and control devices. General Facility Information Table 2, p. 3, documents the primary equipment observed onsite at each location, as well as whether indications existed (such as pump jack movement, separator operation, or tank heater operation) that, at the time of the inspection, the site was receiving materials produced from associated wells. At all well pads inspected, the vapor space from produced water tanks was vented to and in direct communication with the closed vent system header that serviced the oil tanks. Note that, when used in the table below, and elsewhere throughout this report, "ECD" means Enclosed Combustion Device and "BPR" means backpressure regulator. Page 2 of 10 Site Number 1 2 3 4 5 6 7 8 9 10 11 12 13 Facility Name/Site ID Ute Tribal 30-01-4-3E Ute Tribal 29-04-4-3E Ute Tribal 20-13-4-3E Ute Tribal 19-16-4-3E Ute Tribal 2-13-4-2E-H1 Ute Tribal 3-35-2-3-2E-H1 Ute Tribal 05-13-5-3E Ute Tribal 07-08-5-3E Lamb Tribal 08-04-5-3E Ute Tribal 01-16-5-2E Ute Tribal 12-01-5-2E Ute Tribal 36-16-4-2E Ute Tribal 36-09-4-2E Ute Tribal 31-13-4-3E Ute Tribal 15-16-4-2E Ute Tribal 4-32-3-2E Ute Tribal 14-28-3-2E-H1 Ute Tribal 15-22-15-3-1E-H1 Ute Waratza 5-23-3-1E Ute Tribal 4-23-3-1W-H1 RP14N-31W-H7WS Ute Tribal 2-23-3-1W Table 2 - Site Characteristics Observed During Inspection Tank System ID (if applicable) Processing Indication # Wells # Separators/ Treaters Total # Tanks Oil Tanks (# and Size) Ute Tribal 19- Pump jacks 4 4 12 8 - 400 bbl 16-4S-3E operating Ute Tribal 2-13- Pump jack 1 1 4-2E-H1 operating Ute Tribal 3-35- Pump jack 1 1 2-3-2E-H1 operating Pump jacks 3 3 operating 3 - 1,000 4 bbl3 4 3 - 1,000 bbl 9 6 - 500 bbl Shut-in 2 2 6 4 - 500 bbl Pump jacks 3 3 operating 9 6 - 400 bbl Ute Tribal 15- Pump jack 1 1 16-4-2E operating 4 3 - 400 bbl Ute Tribal 4-32- Pump jack 1 1 3-2E operating Ute Tribal 14- Shut-in 1 1 28-3-2E-H1 Ute Tribal 15- Pump jack 1 1 22-15-3-1E-H1 operating 4 3 - 400 bbl 4 3 - 1,000 bbl 3 2 - 1,000 bbl Ute Waratza 5- Pump jack 1 1 23-3-1E operating 3 2 - 400 bbl Ute Tribal 4-23- Pressure on 1 1 3-1W-H1 separator RP14N-31W- Rotaflex 1 1 H7WS operating Pump jack 1 1 operating 4 3 - 1,000 bbl 2 2 - 400 bbl 3 2 - 400 bbl Produced Water Tanks (# and Size) 4 - 400 bbl 1 - 1,000 bbl 1 - 1,000 bbl 3 - 500 bbl 2 - 500 bbl 3 - 400 bbl 1 - 400 bbl 1 - 400 bbl 1 - 1,000 bbl 1 - 1,000 bbl 1 - 400 bbl 1 - 1,000 bbl 0 1 - 400 bbl # Control Devices 2 1 1 1 1 1 1 1 1 1 2 1 1 Control Device Info Steffes Flares2 (1 Air-Assist LowPressure and 1 Non-Assist HighPressure) Cimarron 48" ECD Cimarron 48" ECD Steffes Flare SFI 60" ECD No BPR Steffes AirAssist Flare Cimarron 60" ECD No BPR Cimarron 48" STD ECD No BPR Cimarron 48" HV ECD Cimarron 48" HV ECD 1 SFI 48" ECD4 1 Cimarron 48" ECD4 Cimarron 48" HV ECD5 Cimarron 48" ECD No BPR Page 3 of 10 Site Facility Name/Site ID Number 14 Ute Tribal 2-23-3-1W-H1 15 Ute Tribal 13-13-3-1W-H1 16 Ute Tribal 3-24-3-1W-H1 17 Ute Tribal 2-24-3-1W-H1 Tank System ID (if applicable) Ute Tribal 1313-3-1W-H1 Ute Tribal 3-243-1W-H1 Ute Tribal 2-243-1W-H1 Processing Indication Rotaflex operating Pump jack operating Pump jack operating Pump jack operating # Wells 1 1 1 1 # Separators/ Treaters 1 1 1 1 Total # Tanks 3 4 3 3 Oil Tanks (# and Size) 2 - 1,000 bbl 3 - 400 bbl 2 - 400 bbl 2 - 1,000 bbl Produced Water Tanks (# and Size) 1 - 1,000 bbl # Control Devices 1 1 - 400 bbl 1 1 - 400 bbl 1 1 - 1,000 bbl 1 Control Device Info Cimarron 48" HV ECD Cimarron 60" ECD No BPR Cimarron 60" ECD No BPR Cimarron 48" HV ECD 2 The Steffes air-assist low-pressure flare is utilized as the primary control device for the tank system. The non-assist high-pressure flare is utilized to combust sales gas during periods of gas pipeline unavailability (e.g. high line pressures). 3 Oil Tank #1 was out of service due to fire damage. See photos DC_3078, DC_3082, and DC_3083 for image of tank and lockout/tagout (LOTO). 4 The 48" SFI ECD is utilized for control of tank emissions; the 48" Cimarron ECD is utilized for combustion of associated gas, as there is no sales gas pipeline access at the site. No back pressure regulator is installed prior to the inlet of the 48" Cimarron ECD. 5 Both Tank Systems are connected by a common vapor line and routed to the shared ECD. Page 4 of 10 Table 3, below, describes Inspection Observations and Areas of Concern identified during the inspection. The table lists the emissions or other operational issues noted by the inspector, the method(s) of detection used by the inspector, and any corresponding visual-spectrum or OGI photo and/or video files taken of the activity or emissions source. Note that, when used in the table below, and elsewhere throughout this report, "UBHC" means unburned hydrocarbons (as observed with OGI), "TH" means thief hatch, "CVS" means closed vent system, and "KO" means knock-out. Areas of concern indicate potential noncompliance with applicable requirements. Areas of concern were verbally conveyed on site by EPA inspectors to UWO representatives on the same day as the associated inspections. Site Number Tank Battery ID 2 Ute Tribal 2-13-4-2EH1 3 Ute Tribal 3-35-2-32E-H1 3 Ute Tribal 3-35-2-32E-H1 3 Ute Tribal 3-35-2-32E-H1 Ute Tribal 05-13-5-3E 4 Ute Tribal 07-08-5-3E Lamb Tribal 08-04-53E 5 Ute Tribal 01-16-5-2E Ute Tribal 12-01-5-2E 7 Ute Tribal 15-16-4-2E 7 Ute Tribal 15-16-4-2E Table 3 - Inspection Observations and Areas of Concern Equipment or Location AVO Observation Details OGI Emissions Observed? OGI Observation Details ECD BPR valve pinned Y Trailing UBHC from top in open position of ECD Blowdowns on produced water tank and oil tank #1 ECD Weak flames on rails Continuous stream of Y emissions from blowdowns on produced water tank and oil tank #1 Continuous stream of Y UBHC from top of ECD; not hot at ECD outlet TH on produced water tank Y Emissions from TH on tank Flare ECD ECD CVS Continuous black N smoke Weak flames on Y rails Pilot present but no flames on rails; HC Y odors Low spots in vent line from liquid KO N to ECD N/A UBHC from outlet of ECD; not hot at ECD outlet Continuous stream of UBHC from ECD outlet; no heat signature N/A Additional Observation Notes BPR valve not functioning BPR valve not functioning Occurred after blowdown valves closed; gasket replaced by UWO personnel while on site S. Loiacono performed M22 reading; more than 1 minute of visible emissions in a 15-minute period No BPR valve NO BPR valve Potential for liquids accumulation in vent line Picture/Video File ID(s) MOV_3079; MOV_3080; DC_3081 MOV_3085 MOV_3086; MOV_3087 MOV_3088 N/A MOV_3094 MOV_3098; MOV_3099 DC_3100 Page 5 of 10 Site Number Tank Battery ID Equipment or Location 8 Ute Tribal 4-32-3-2E 9 Ute Tribal 14-28-3-2EH1 10 Ute Tribal 15-22-15-31E-H1 ECD ECD ECD 10 Ute Tribal 15-22-15-3- CVS 1E-H1 11 Ute Waratza 5-23-31E SFI ECD 12 RP14N-31W-H7WS TH on oil tank #3 12 RP14N-31W-H7WS Dry gas line 12 Ute Tribal 4-23-3-1W- CVS H1 13 Ute Tribal 2-23-3-1W ECD 13 Ute Tribal 2-23-3-1W Tank heater 14 Ute Tribal 2-23-3-1W- TH on produced H1 water tank 14 Ute Tribal 2-23-3-1W- ECD H1 15 Ute Tribal 13-13-3- ECD 1W-H1 AVO Observation Details Pilot present but no flames on rails Pilot present but no flames on rails BPR pinned open Vent line slopes from liquid KO to ECD Pilot present but no flames on rails TH open Vent line connecting tank systems has 90 vertical angle from ground HC odors; pilot present but weak flames on rails HC odors Flames present on only one row on burner rails HC odors; weak flames OGI Emissions Observed? Y Y Y N Y Y Y N Y Y Y Y Y OGI Observation Details UBHC from ECD outlet; no heat signature UBHC from ECD outlet; no heat signature UBHC from ECD outlet N/A UBCH from ECD outlet; no heat signature Continuous emissions from TH on oil tank #3 Emissions from regulator N/A Continuous stream of UBHC from outlet of ECD; no heat signature Continuous stream of emissions from tank heater stack Puffs of emissions from TH Continuous stream of UBHC from outlet of ECD; no heat signature Trailing UBHC emissions from outlet of ECD Additional Observation Notes No PBR valve BPR valve present but not properly functioning Potential for liquids accumulation in ECD BPR in closed position indicates valve not fully closed/seated Closed by UWO personnel while on site Dry gas line used to power glycol pumps for heat trace. Potential for liquid accumulation in vent line No BPR valve UWO personnel performed troubleshooting on heater stack but were unable to resolve emissions while on site BPR valve pinned open Also detected emissions from regulator on pilot supply valve Picture/Video File ID(s) MOV_3101; MOV_3103 MOV_3106; MOV_3107 MOV_3108; MOV_3109; DC_3110 DC_3111 MOV_3117 MOV_3121; MOV_3123 MOV_3128 DC_3125 MOV_3130; MOV_3131; MOV_3133 MOV_3130; MOV_3132 MOV_3136 MOV_3135; DC_3138; MOV_3139 MOV_3142; MOV_3143 Page 6 of 10 Site Number Tank Battery ID 16 Ute Tribal 3-24-3-1WH1 16 Ute Tribal 3-24-3-1WH1 16 Ute Tribal 3-24-3-1WH1 17 Ute Tribal 2-24-3-1WH1 17 Ute Tribal 2-24-3-1WH1 Equipment or Location ECD CVS Produced water tank ECD CVS AVO Observation Details No BPR valve; pilot present and flames on rails Low point at 90 elbow in vent line from tanks to ECD OGI Emissions Observed? Y N HC odors Y Pilot present but Y flames intermittent Low spot in vent line from KO to N ECD OGI Observation Details Emissions from outlet of ECD N/A Emissions from top of tank; possibly from tank heater stack Trailing UBHC emissions from outlet of ECD N/A Additional Observation Notes Potential for liquids accumulation in vent line BPR valve pinned open Potential for liquids accumulation in vent line Picture/Video File ID(s) MOV_3145 DC_3147 MOV_3148 MOV_3151 Page 7 of 10 Table 4, below, lists the photos and videos taken at each site to document facility operations. Site Number 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 4 4 5 5 5 5 6 6 7 7 7 8 8 8 9 9 9 9 10 10 10 10 Date 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 Table 4 - Photo/Video Log Picture/Video File ID(s) Photographer Description DC_3072.jpg Sara Loiacono ID Sign on Tank System (Ute Tribal 19-16-4S-3E) MOV_3073.mp4 Sara Loiacono Site overview and HSM scan DC_3074.jpg Sara Loiacono Photo of Steffes air-assist low-pressure flare DC_3075.jpg Sara Loiacono Site entry sign DC_3076.jpg Sara Loiacono ID Sign on tank battery MOV_3077.mp4 Sara Loiacono Site overview and HSM scan DC_3078.jpg Sara Loiacono Tank battery; visible fire damage to Oil Tank #1 MOV_3079.mp4 Sara Loiacono ECD - note trailing UBHC emissions MOV_3080.mp4 Sara Loiacono ECD - note trailing UBHC emissions DC_3081.jpg Sara Loiacono PBR valve on ECD; pinned in open position DC_3082.jpg Sara Loiacono LOTO on Oil Tank #1 DC_3083.jpg Sara Loiacono LOTO on Oil Tank #1 MOV_3084.mp4 Sara Loiacono Site overview and HSM scan - emissions from blowdown on produced water tank and oil tank #1 MOV_3085.mp4 Sara Loiacono Continuous stream of emissions from blowdowns on produced water tank and oil tank #1 MOV_3086.mp4 Sara Loiacono Continuous stream of UBHC from top of ECD MOV_3087.mp4 Sara Loiacono Blowdown valves after closure; UBHC from outlet of ECD MOV_3088.mp4 Sara Loiacono Emissions from TH on produced water tank DC_3089.jpg Sara Loiacono Site entry sign DC_3090.jpg Sara Loiacono Site entry sign MOV_3091.mp4 Sara Loiacono Site overview and HSM scan MOV_3092.mp4 Sara Loiacono Site overview and HSM scan; UBHC from top of ECD DC_3093.jpg Sara Loiacono Site entry sign MOV_3094.mp4 Sara Loiacono UBHC from outlet of ECD MOV_3095.mp4 Sara Loiacono ECD after UWO personnel sent pressurized gas to ECD MOV_3096.mp4 Sara Loiacono Site overview and HSM scan DC_3097.jpg Sara Loiacono Site entry sign MOV_3098.mp4 Sara Loiacono Site overview and HSM scan; UBHC from outlet of ECD; no heat signature MOV_3099.mp4 Sara Loiacono UBHC from outlet of ECD; no heat signature DC_3100.jpg Sara Loiacono Low spot in vent line between liquid KO and ECD MOV_3101.mp4 Sara Loiacono Site overview and HSM scan; UBHC from outlet of ECD DC_3102.jpg Sara Loiacono ID sign on tank battery MOV_3103.mp4 Sara Loiacono UBHC from outlet of ECD; no heat signature MOV_3104.mp4 Sara Loiacono Site overview and HSM scan DC_3105.jpg Sara Loiacono ID sign on tank battery MOV_3106.mp4 Sara Loiacono UBHC from outlet of ECD; no heat signature MOV_3107.mp4 Sara Loiacono UBHC from outlet of ECD; no heat signature MOV_3108.mp4 Sara Loiacono Site overview and HSM scan; UBHC from outlet of ECD MOV_3109.mp4 Sara Loiacono UBHC from outlet of ECD DC_3110.jpg Sara Loiacono PBR valve on ECD; pinned in open position DC_3111.jpg Sara Loiacono Vent line from liquid KO to ECD; downward slope toward ECD Page 8 of 10 Site Number 10 10 11 11 11 11 11 11 12 12 12 12 12 12 12 12 12 13 13 13 13 13 14 14 14 14 14 15 15 15 15 16 16 16 16 Date 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/3/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 10/4/2022 Picture/Video File ID(s) DC_3112.jpg DC_3113.jpg MOV_3114.mp4 DC_3115.jpg DC_3116.jpg MOV_3117.mp4 DC_3118.jpg DC_3119.jpg MOV_3121.mp4 DC_3122.jpg MOV_3123.mp4 DC_3124.jpg DC_3125.jpg DC_3126.jpg MOV_3127.mp4 MOV_3128.mp4 DC_3129.jpg MOV_3130.mp4 MOV_3131.mp4 MOV_3132.mp4 MOV_3133.mp4 DC_3134.jpg MOV_3135.mp4 MOV_3136.mp4 DC_3137.jpg DC_3138.jpg MOV_3139.mp4 MOV_3140.mp4 DC_3141.jpg MOV_3142.mp4 MOV_3143.mp4 MOV_3144.mp4 MOV_3145.mp4 DC_3146.jpg DC_3147.jpg Photographer Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Description ID sign on tank battery Vapor recovery line on tank battery Site overview and HSM scan Associated gas ECD (left) and tank control ECD (right) BPR and automation system on tank control ECD Associated gas ECD (left) and tank control ECD (right); UBHC from top of tank control ECD; no heat signature ID sign on tank battery ID sign on tank battery Site overview and HSM scan; emissions from TH on oil tank #3 ID sign on Ute Tribal 4-23-3-1W-H1 tank battery Continuous emissions from TH on RP14N-31W- H7WS tank battery, oil tank #3 ID sign on RP14N-31W-H7WS Tank System Vent line connecting tank batteries; note low spot at 90 elbow in line where piping goes from ground level to vertical Vent line from tank batteries to ECD Accidental video of ECD Emissions from dry gas line used to power glycol pumps for heat trace Vent line from Ute Tribal 4-23-3-1W-H1 tank battery Site overview and HSM scan; emissions from tank heater stack on oil tank and UBHC from outlet of ECD Continuous stream of UBHC from outlet of ECD; no heat signature Continuous stream of emissions from tank heater stack on end oil tank Continuous stream of UBHC from outlet of ECD; no heat signature ID sign on tank battery Site overview and HSM scan; UBHC from outlet of ECD Emissions from TH on produced water tank ID sign on tank battery BPR valve on ECD pinned in open position Continuous stream of UBHC from outlet of ECD; no heat signature Site overview and HSM scan ID sign on tank battery UBHC from outlet of ECD Emissions from regulator valve on pilot supply line when valve turned to closed position Site overview and HSM scan Emissions from outlet of ECD ID sign on tank battery Low point at 90 elbow in vent line from tank battery to ECD Page 9 of 10 Site Number 16 17 17 17 Date 10/4/2022 10/4/2022 10/4/2022 10/4/2022 Picture/Video File ID(s) MOV_3148.mp4 MOV_3149.mp4 DC_3150.jpg MOV_3151.mp4 Photographer Sara Loiacono Sara Loiacono Sara Loiacono Sara Loiacono Description Emissions from produced water tank; possibly from tank heater stack Site overview and HSM scan ID sign on tank battery UBHC from outlet of ECD Page 10 of 10