Document ExvERrGzxJ6b7QzrE8pw5gjBN

MEMORANDUM SUBJECT: CLEAN AIR ACT INSPECTION REPORT Ascent Resources Well Pads in Belmont, Guernsey, and Harrison Counties, Ohio FROM: Natalie Topinka, Environmental Scientist AECAB (IL/IN) Jacob Herbers, Environmental Engineer AECAB (MI/WI) THRU: Sarah Marshall, Section Supervisor AECAB (MI/WI) TO: File BASIC INFORMATION Facility Name: Ascent Resources Well Pads Facility Locations: Well Pad Name ALBERT E KKW BL MALDON E WRN BL BANNOCK N UNN BL ECHO S ATH HR VICTORIA E ATH HR ELLEN E MRF HR LAKE LND GR KROBY NE MDS GR MILLER FARMS E WSG GR WALDO E MNR GR TARPLEY OXF GR BILINOVICH E LND GR GILCHER N LND GR BETTS N LND GR latitude 40.045772 40.008924 40.117391 40.180388 40.203270 40.227224 40.148297 40.122779 40.174866 40.174503 40.063939 40.087449 40.101142 40.111313 longitude -81.2131 -81.1989 -81.0063 -81.0276 -81.0797 -81.1479 -81.2973 -81.3608 -81.3805 -81.4486 -81.2945 -81.3027 -81.2874 -81.2601 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 HENRY LND GR THOMAS NE LND GR GINGERICH S LND GR LINCOLN S MDS GR JENNINGS E WLS GR WAMPUM RCH GR LAVADA RCH GR WATSON E MLW GR 40.127805 40.095163 40.089037 40.093905 40.011373 39.965518 39.971987 39.963052 -81.2902 -81.3078 -81.3270 -81.3603 -81.4552 -81.4372 -81.4120 -81.3625 Date of Inspection: October 8-9, 2024 EPA Inspector(s): 1. Natalie Topinka, Environmental Scientist 2. Jacob Herbers, Environmental Engineer Other Attendees: 1. Jon Hickman, EHS Field Manager - Environmental, Ascent Resources 2. Amanda Warnock, EHS Supervisor, Ascent Resources 3. Joe Steel, Ascent Resources 4. Cory McNutt, Ascent Resources 5. Hugo Perez, Ascent Resources 6. Adam Pence, Ascent Resources 7. Brian Hottel, Ascent Resources 8. Matthew Palmer, Ascent Resources 9. Josh Gessel, Ascent Resources 10. Mike Maycowski, Ascent Resources 11. Bob Adams, Ascent Resources 12. Bryan Ely, Ascent Resources 13. Brandon St. Clair, Ascent Resources 14. Josh Franks, Ascent Resources Contact Email Addresses: jon.hickman@ascentresources.com, evan.pearson@ascentresources.com, bryan.ely@ascentresources.com Purpose of Inspection: To assess compliance with Clean Air Act regulations for oil and natural gas well pads and the facility's permits. Facility Type: Oil and natural gas well pads. Regulations Central to Inspection: Standards of Performance for Crude Oil and Natural Gas Facilities, at 40 C.F.R. Part 60, Subparts OOOOa and OOOOb; and Ascent's State-Issued Permits to Install and Operate (PTIOs). Page 2 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 Arrival and Departure Times: Well Pad Name Inspection Date ALBERT E KKW BL 10/8/2024 MALDON E WRN BL 10/8/2024 BANNOCK N UNN BL 10/8/2024 ECHO S ATH HR 10/8/2024 VICTORIA E ATH HR 10/8/2024 ELLEN E MRF HR 10/8/2024 LAKE LND GR 10/8/2024 HENRY LND GR 10/8/2024 BETTS N LND GR 10/8/2024 GILCHER N LND GR 10/8/2024 BILINOVICH E LND GR 10/8/2024 THOMAS NE LND GR 10/8/2024 GINGERICH S LND GR 10/8/2024 KROBY NE MDS GR 10/9/2024 MILLER FARMS E WSG GR 10/9/2024 WALDO E MNR GR 10/9/2024 LINCOLN S MDS GR 10/9/2024 TARPLEY OXF GR 10/9/2024 JENNINGS E WLS GR 10/9/2024 LAVADA RCH GR 10/9/2024 WATSON E MLW GR 10/9/2024 WAMPUM RCH GR 10/9/2024 Arrival Time (EDT) 08:26 09:50 10:58 11:40 12:13 12:55 13:40 14:06 14:28 14:55 15:15 15:40 16:11 08:30 09:03 09:28 10:00 10:31 10:59 11:25 11:58 12:41 Departure Time (EDT) 09:34 10:08 11:20 11:58 12:37 13:15 14:00 14:17 14:44 15:10 15:30 16:05 16:29 08:47 09:16 09:39 10:13 10:43 11:15 11:48 12:30 13:00 Inspection Type: Unannounced Inspection Announced Inspection OPENING CONFERENCE Presented Credentials Stated authority and purpose of inspection Provided Small Business Resource Information Sheet Provided CBI warning to facility The following information was obtained verbally from Ascent Resources representatives unless otherwise noted. Page 3 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 Process Description: 1. Albert Pad: An emulsion of natural gas, condensate, and produced water is extracted at five wells. Natural gas is separated and sent to a sales line. The site originally had 8 tanks in 2019, now it has two 500-barrel (bbl) produced water tanks and two 500-bbl condensate tanks. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. There is a pressure monitor on the vapor line to the combustor. Ascent aims to maintain tank headspace pressure below 10 oz/in2. The vapor line to the combustor opens at 4 oz/in2. 2. Maldon Pad: An emulsion of natural gas, condensate, and produced water is extracted at three wells. Natural gas is separated, dehydrated, and sent to a sales line. The site has two produced water tanks and three condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 3. Bannock Pad: An emulsion of natural gas, condensate, and produced water is extracted at four wells. Natural gas is separated, dehydrated, and sent to a sales line. The site has two produced water tanks and two condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 4. Echo Pad: An emulsion of natural gas, condensate, and produced water is extracted at seven wells. Natural gas is separated and sent to a sales line. The site has one produced water tank and three condensate tanks. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 5. Victoria Pad: An emulsion of natural gas, condensate, and produced water is extracted at five wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and two condensate tanks. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 6. Ellen Pad: An emulsion of natural gas, condensate, and produced water is extracted at three wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and two condensate tanks. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 7. Lake Pad: An emulsion of natural gas, condensate, and produced water is extracted at five wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 8. Henry Pad: Page 4 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 An emulsion of natural gas, condensate, and produced water is extracted at three wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 9. Betts Pad: An emulsion of natural gas, condensate, and produced water is extracted at seven wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and six condensate tanks. Two low-pressure towers were on-site and in service at the time of our inspection. The headspaces of all eight tanks are piped together, and vapors from the tanks are controlled with a combustor. 10. Gilcher Pad: An emulsion of natural gas, condensate, and produced water is extracted at four wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and two condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 11. Bilinovich Pad: An emulsion of natural gas, condensate, and produced water is extracted at four wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 12. Thomas Pad: An emulsion of natural gas, condensate, and produced water is extracted at six wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 13. Gingerich Pad: An emulsion of natural gas, condensate, and produced water is extracted at three wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and two condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 14. Kroby Pad: An emulsion of natural gas, condensate, and produced water is extracted at four wells. Natural gas is separated and sent to a sales line. The site has three produced water tanks and three condensate tanks. A low-pressure tower was on-site and in service at the time of our inspection. The headspaces of all six tanks are piped together, and vapors from the tanks are controlled with a combustor. A backup combustor is also on-site. 15. Miller Farms Pad: An emulsion of natural gas, condensate, and produced water is extracted at two wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and Page 5 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 two condensate tanks. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 16. Waldo Pad: An emulsion of natural gas, condensate, and produced water is extracted at one well. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 17. Lincoln Pad: An emulsion of natural gas, condensate, and produced water is extracted at four wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. A low-pressure tower was on-site and in service at the time of our inspection. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 18. Tarpley Pad: An emulsion of natural gas, condensate, and produced water is extracted at three wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and two condensate tanks. A low-pressure tower was on-site but not in service at the time of our inspection. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. 19. Jennings Pad: An emulsion of natural gas, condensate, and produced water is extracted at four wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and three condensate tanks. A low-pressure tower was on-site and in service at the time of our inspection. The headspaces of all five tanks are piped together, and vapors from the tanks are controlled with a combustor. 20. Lavada Pad: An emulsion of natural gas, condensate, and produced water is extracted at two wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and six condensate tanks. A low-pressure tower was on-site and in service at the time of our inspection. The headspaces of all eight tanks are piped together, and vapors from the tanks are controlled with a combustor. 21. Watson Pad: An emulsion of natural gas, condensate, and produced water is extracted at six wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and four condensate tanks. A low-pressure tower was on-site and in service at the time of our inspection. The headspaces of all six tanks are piped together, and vapors from the tanks are controlled with a combustor. 22. Wampum Pad: An emulsion of natural gas, condensate, and produced water is extracted at three wells. Natural gas is separated and sent to a sales line. The site has two produced water tanks and two condensate tanks. A low-pressure tower was on-site and in service at the time of our inspection. The headspaces of all four tanks are piped together, and vapors from the tanks are controlled with a combustor. A backup combustor is also on-site. Page 6 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 Staff Interview: Ascent performs Method 22 on its combustors monthly. Compressor engines are stack tested annually. Vapor flow rates to combustors are not monitored. In general, higher vapor flow rates result in higher combustor temperatures. If a combustor set point temperature (usually about 2000F) is exceeded, the well pad automatically shuts in. Pneumatic controllers are air-driven. If production conditions indicate that a piece of equipment should be added or removed from a site, a facility design change request is submitted to Ascent personnel at the Oklahoma City headquarters where its impact is modeled and reviewed before approval. When a piece of equipment is scheduled to be removed from a site, it is taken offline for a few weeks before being removed from the site (to confirm how its removal may impact operations). TOUR INFORMATION EPA Toured the Facility: Yes Data Collected and Observations: 1. Albert Pad: We observed the combustor in operation and recorded a video of the combustor plume using a Forward-Looking Infrared (FLIR) camera, model Gx320. We climbed the tank battery and observed the vapor collection system, thief hatches, and pressure relief valves (PRVs). A liquid dump event occurred to the tanks while we were on top of the tank battery. Tank pressure monitors indicated that tank pressure was 4 oz/in2. Downwind of the compressor engine, several 4-gas meters worn by Ascent personnel alarmed for carbon monoxide. We recorded a FLIR video of the compressor engine stack. 2. Maldon Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. A liquid dump event occurred to the tanks while we were on top of the tank battery, at which point both PRVs were emitting vapors. We observed visual refraction of the air around the PRVs and odor. We observed emissions from the thief hatch on Condensate Tank 2, from the emergency pressure relief devices (EPRVs) on Produced Water Tank 1 and Condensate Tank 3, and from both PRVs. We recorded FLIR videos of each emission point. We observed oily residue on the EPRVs on Produced Water Tank 2. We also recorded a FLIR video of the compressor exhaust stack. 3. Bannock Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We also recorded a FLIR video of the compressor exhaust stack. 4. Echo Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. Tank pressure monitors indicated that tank pressure was 4 oz/in2. Page 7 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 5. Victoria Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the EPRV on Produced Water Tank 1 and from the thief hatch on Produced Water Tank 2. The EPRV was rusty around the seal. We recorded FLIR videos of both emission points. The vapor line pressure gauge read 0 oz/in2 and we noted odor atop the tank battery. We also recorded a FLIR video of the compressor exhaust stack. 6. Ellen Pad: Conditions were windy while we were on-site at the Ellen Pad. We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatch on one condensate tank and recorded a FLIR video there. We also noted odor atop the tank battery. At least one liquid dump event occurred when we were on the top of the tank battery. The pressure gauge on the vapor line to the combustor read 2 oz/in2. 7. Lake Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. 8. Henry Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 672 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. 9. Betts Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. 10. Gilcher Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. A liquid dump occurred while we were on top of the tank battery. We observed emissions from the thief hatch on Produced Water Tank 1 and at the PRV above that tank. We recorded FLIR videos at both emission points. 11. Bilinovich Pad: Conditions were windy while we were on-site at the Bilinovich Pad. We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatches on Condensate Tanks 1 and 5 and Produced Water Tank 1. We recorded FLIR videos of each emission point. We also noted odor atop the tank battery. A pressure gauge on the tank battery indicated 5 inches of water column (inH2O). Page 8 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 12. Thomas Pad: We observed the combustor in operation and recorded two FLIR videos of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from both the thief hatches and EPRVs on Condensate Tank 1 and Produced Water Tanks 1 and 2, and from the PRV above Condensate Tank 1. We recorded FLIR videos of each emission point. A pressure gauge on the vapor line to the combustor read -7.6 inH2O. 13. Gingerich Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. A pressure gauge on the vapor line to the combustor read 0.8 inH2O. 14. Kroby Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor temperature gauge read 133 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. A pressure gauge on the tanks read -0.2 oz/in2. 15. Miller Farms Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 607 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatch on Produced Water Tank 2, and from EPRVs on Condensate Tank 1 and Produced Water Tanks 1 and 2. We recorded FLIR videos of each emission point. We noted odor atop the tank battery. 16. Waldo Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 282 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatch on Condensate Tank 2 and from the EPRV on Produced Water Tank 1. We recorded FLIR videos of each emission point. 17. Lincoln Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 218 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the EPRVs on Condensate Tank 5 and Produced Water Tanks 1 and 2, with the latter having oily residue. We recorded FLIR videos of each emission point. A pressure gauge on the low pressure tower read 3 pounds per square inch (psi). 18. Tarpley Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 604 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the EPRV on Produced Water Tank 1 and from the PRV above Produced Water Tank 1. We recorded FLIR videos of each emission point. Page 9 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 19. Jennings Pad: Conditions were windy while we were on-site at the Jennings Pad. We observed the combustor in operation with visible emissions, and recorded a FLIR video of the combustor plume. We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatch on Produced Water Tank 2 and noted an odor and visible refraction at the emitting thief hatch. We recorded FLIR videos of the emission point. A pressure gauge on the low pressure tower read 2.6 psi. 20. Lavada Pad: Conditions were windy while we were on-site at the Lavada Pad. We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 134 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatch on Condensate Tank 6 and from the EPRV on Produced Water Tank 1. We recorded FLIR videos of each emission point. A pressure gauge on the vapor line to the combustor read 0.3 oz/in2. A pressure gauge on the low pressure tower read 4.2 psi. We noted odor atop the tank battery. Truck loading was occurring while we were on-site, we observed emissions from the truck loadout valve on the vent line in, and recorded a FLIR video of it. 21. Watson Pad: Conditions were windy while we were on-site at the Watson Pad. We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 163 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatches on Condensate Tanks 2 and 4 and Produced Water Tanks 1 and 2, and from the PRVs above Condensate Tanks 1 and 2. We recorded FLIR videos of each emission point. A pressure gauge on the low pressure tower read 2.8 psi. We noted odor atop the tank battery. 22. Wampum Pad: We observed the combustor in operation and recorded a FLIR video of the combustor plume. The combustor process temperature gauge read 292 . We climbed the tank battery and observed the vapor collection system, thief hatches, and PRVs. We observed emissions from the thief hatch on Condensate Tank 2 and from the EPRVs on Produced Water Tanks 1 and Condensate Tank 2. We recorded FLIR videos of each emission point. A pressure gauge on the tanks read 0.3 oz/in2. A pressure gauge on the low pressure tower read 3.03 psi. After our site visits to the well pads, we returned to Ascent's office headquarters in Cambridge, Ohio and got a tour of the control room. From the control room, which is staffed 24 hours a day, 7 days a week, operators have camera views of all well pads and can monitor parameters such as tank levels, instrument air, well pressure, combustor temperature, low pressure tower pressure, and compressor temperature and pressure. Data coming to the control room lags real-time by about 15 minutes. If a parameter is out of range, operators in charge of those well pad routes will get an alarm through Microsoft Teams. Page 10 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 Photos and/or Videos: were taken during the inspection and are listed in Appendix A. Field Measurements: were not taken during this inspection. CLOSING CONFERENCE Provided U.S. EPA point of contact to the facility. Compliance Assistance: We discussed with Ascent representatives using properly operating tank pressure or vapor line pressure monitors and the results of leak detection OGI surveys to inform root causes of emissions, such as overpressurization when plunger lifts arrive simultaneously and cause a large liquid dump event. We also discussed ensuring that whatever emissions conditions are modeled are then verified in the field. Concerns: We observed that some of the combustors had large trailing plumes of uncombusted VOCs. We expressed concern that the efficiency of the combustors was not being optimized, and that without monitoring certain parameters such as vapor flow rate, it cannot be confirmed that Ascent's combustors were meeting the parameters under which the combustors were manufacturer-tested to achieve their rated efficiency. We also noted that at some well pads, the normal range of operating conditions, including liquid dumps to the tanks, appeared to be leading to overpressurization of the tank vapor control system and were resulting in emissions from pressure relief points such as PRVs, EPRVs, and thief hatches. DIGITAL SIGNATURES NATALIE Digitally signed by NATALIE TOPINKA Report Author: _T_O__P_IN__K_A_____1_5:_21_:1_5_-0_6'0_0_' ____________ Date: 2024.11.05 Herbers, Digitally signed by Herbers, Jacob Report Author: _J_a_c_o_b________1_5:_24_:2_4_-0_6'0_0_' ____________ Date: 2024.11.05 SARAH Digitally signed by SARAH MARSHALL Section Supervisor: _M_A__R_S__H_A_L__L__1_5:_22_:1_2_-0_6'0_0_' _________ Date: 2024.11.06 Page 11 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 APPENDIX A: DIGITAL VIDEO LOG Inspector Names: Natalie Topinka, Jacob Herbers Archival Record Location: EPA Electronic Records Image # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 File Name FLIR0319.mp4 FLIR0320.mp4 FLIR0321.mp4 FLIR0322.mp4 FLIR0323.mp4 FLIR0324.mp4 FLIR0325.mp4 FLIR0326.mp4 FLIR0327.mp4 FLIR0328.mp4 FLIR0329.mp4 FLIR0330.mp4 FLIR0331.mp4 FLIR0332.mp4 FLIR0333.mp4 FLIR0334.mp4 FLIR0335.mp4 FLIR0336.mp4 FLIR0337.mp4 FLIR0338.mp4 FLIR0339.mp4 FLIR0340.mp4 FLIR0341.mp4 FLIR0342.mp4 FLIR0343.mp4 FLIR0344.mp4 FLIR0345.mp4 FLIR0346.mp4 FLIR0347.mp4 FLIR0348.mp4 FLIR0349.mp4 FLIR0350.mp4 FLIR0351.mp4 FLIR0352.mp4 FLIR0353.mp4 FLIR0354.mp4 FLIR0355.mp4 FLIR0356.mp4 Date and Time (CDT) 10/8/2024 07:55 10/8/2024 08:12 10/8/2024 08:56 10/8/2024 08:58 10/8/2024 09:06 10/8/2024 09:08 10/8/2024 09:09 10/8/2024 09:11 10/8/2024 10:06 10/8/2024 10:08 10/8/2024 10:44 10/8/2024 11:19 10/8/2024 11:26 10/8/2024 11:29 10/8/2024 11:31 10/8/2024 12:04 10/8/2024 12:10 10/8/2024 12:48 10/8/2024 12:49 10/8/2024 13:08 10/8/2024 13:32 10/8/2024 13:57 10/8/2024 14:01 10/8/2024 14:02 10/8/2024 14:20 10/8/2024 14:23 10/8/2024 14:25 10/8/2024 14:26 10/8/2024 14:46 10/8/2024 14:48 10/8/2024 14:51 10/8/2024 14:52 10/8/2024 14:53 10/8/2024 14:54 10/8/2024 14:55 10/8/2024 14:56 10/8/2024 14:57 10/8/2024 10:20 Description of Video Albert Pad - combustor plume Albert Pad - compressor stack Maldon Pad - combustor plume Maldon Pad - compressor stack Maldon Pad - EPRV Maldon Pad - EPRV Maldon Pad - PRVs Maldon Pad - EPRV Bannock Pad - combustor plume Bannock Pad - compressor stack Echo Pad - combustor plume Victoria Pad - EPRV Victoria Pad - thief hatch Victoria Pad - combustor plume Victoria Pad - compressor stack Ellen Pad - thief hatch Ellen Pad - combustor plume Lake Pad - combustor plume Error Henry Pad - combustor plume Betts Pad - combustor plume Gilcher Pad - combustor plume Gilcher Pad - thief hatch Gilcher Pad - PRV Bilinovich Pad - combustor plume Bilinovich Pad - thief hatch emissions Bilinovich Pad - thief hatch emissions Bilinovich Pad - thief hatch emissions Thomas Pad - combustor plume Thomas Pad - combustor plume Thomas Pad - thief hatch Thomas Pad - EPRV Thomas Pad - EPRV Thomas Pad - EPRV Thomas Pad - thief hatch Thomas Pad - EPRV Thomas Pad - PRV Gingerich Pad - combustor plume Page 12 of 13 Facility Name: Ascent Resources Facility Locations: Belmont, Guernsey, and Harrison Counties, Ohio Dates of Inspection: October 8-9, 2024 39 FLIR0357.mp4 10/9/2024 07:39 Kroby Pad - combustor plume 40 FLIR0358.mp4 10/9/2024 08:06 Miller Farms Pad - combustor plume 41 FLIR0359.mp4 10/9/2024 08:08 Miller Farms Pad - thief hatch 42 FLIR0360.mp4 10/9/2024 08:09 Miller Farms Pad - EPRV 43 FLIR0361.mp4 10/9/2024 08:11 Miller Farms Pad - EPRV 44 FLIR0362.mp4 10/9/2024 08:12 Miller Farms Pad - EPRV 45 FLIR0363.mp4 10/9/2024 08:31 Waldo Pad - combustor plume 46 FLIR0364.mp4 10/9/2024 08:35 Waldo Pad - thief hatch 47 FLIR0365.mp4 10/9/2024 08:36 Waldo Pad - EPRV 48 FLIR0366.mp4 10/9/2024 09:02 Lincoln Pad - combustor plume 49 FLIR0367.mp4 10/9/2024 09:06 Lincoln Pad - EPRV 50 FLIR0368.mp4 10/9/2024 09:07 Lincoln Pad - EPRV 51 FLIR0369.mp4 10/9/2024 09:08 Lincoln Pad - EPRV 52 FLIR0370.mp4 10/9/2024 09:34 Tarpley Pad - combustor plume 53 FLIR0371.mp4 10/9/2024 09:37 Tarpley Pad - EPRV 54 FLIR0372.mp4 10/9/2024 09:39 Tarpley Pad - PRV 55 FLIR0373.mp4 10/9/2024 10:05 Jennings Pad - thief hatch 56 FLIR0374.mp4 10/9/2024 10:11 Jennings Pad - combustor plume 57 FLIR0375.mp4 10/9/2024 10:28 Lavada Pad - truck loading connector 58 FLIR0376.mp4 10/9/2024 10:32 Lavada Pad - thief hatch 59 FLIR0377.mp4 10/9/2024 10:39 Lavada Pad - thief hatch 60 FLIR0378.mp4 10/9/2024 10:45 Lavada Pad - combustor plume 61 FLIR0379.mp4 10/9/2024 11:02 Watson Pad - thief hatch 62 FLIR0380.mp4 10/9/2024 11:02 Watson Pad - PRV 63 FLIR0381.mp4 10/9/2024 11:02 Watson Pad - PRV 64 FLIR0382.mp4 10/9/2024 11:02 Watson Pad - thief hatch 65 FLIR0383.mp4 10/9/2024 11:02 Watson Pad - thief hatch 66 FLIR0384.mp4 10/9/2024 11:02 Watson Pad - thief hatch 67 FLIR0385.mp4 10/9/2024 11:02 Watson Pad - combustor plume 68 FLIR0386.mp4 10/9/2024 11:46 Wampum Pad - thief hatch 69 FLIR0387.mp4 10/9/2024 11:47 Wampum Pad - EPRV 70 FLIR0388.mp4 10/9/2024 11:48 Wampum Pad - EPRV 71 FLIR0389.mp4 10/9/2024 11:52 Wampum Pad - combustor plume Page 13 of 13