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Hess Corporation - Various Well Pads Partial Compliance Evaluation (PCE) On-Site Clean Air Act (CAA) Inspections
Inspection Date(s): October 22, 2024
Inspection Report Date: December 27, 2024
US EPA Region 8 Representatives:
Katelyn Bergl, Clean Air Act Inspector Youn Joo Kim, Clean Air Act Inspector Taylor Waanders, Clean Air Act Inspector
North Dakota Division of Russel Martin, Inspector Air Quality Representatives: Myles Erb, Inspector
Company Representatives: None
Inspection Report Prepared Katelyn Bergl By: Youn Joo Kim
Inspection Report Reviewed By:
Applicable Rules:
Scott Patefield, Manager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch
SCOTT PATEFIELD Date: 2024.12.27 15:09:47 -07'00' Digitally signed by SCOTT PATEFIELD
North Dakota Administrative Code, Title 33.1, Article 15, as incorporated into North Dakota's EPA-approved State Implementation Plan at 40 C.F.R. Part 52, Subpart JJ - North Dakota (ND SIP), including the following chapters:
x Chapter 7, Control of Organic Compound Emissions (ND SIP Chapter 7);
x Chapter 12, Standards of Performance for New Stationary Sources (ND SIP Chapter 12); and
x Chapter 20, Control of Emissions from Oil and Gas Well Production Facilities (ND SIP Chapter 20)
40 C.F.R. Part 60, Subpart OOOO - Standards of Performance for Crude Oil and Natural Gas Facilities for Which Construction, Modification, or Reconstruction Commenced After August 23, 2011, and on or Before September 18, 2015
40 C.F.R Part 60, Subpart OOOOa - Standards of Performance for Crude Oil and Natural Gas Facilities for which Construction, Modification or Reconstruction Commenced After September 18, 2015 (NSPS OOOOa)
Compliance Assistance None
Enforcement History None
Areas of Concern None
General Inspection Information Unannounced well pad inspections were conducted jointly by U.S. EPA and North Dakota Department of Environmental Quality - Division of Air Quality inspectors (Inspectors) on October 22, 2024, at multiple Hess Corporation facilities located in North Dakota.
The Inspectors evaluated each well site listed in Table 1 using audio, visual, and olfactory (AVO) inspection methods including the use of an optical gas imaging (OGI) camera and EPA Reference Method 22. At each facility, Inspectors scanned the crude and/or water storage tanks, closed vent system and flares onsite for any detectable emissions. Specifically, Inspectors scanned storage tank covers and closed vent systems for hydrocarbon emissions to determine compliance with the Clean Air Act, including the North Dakota SIP and NSPS regulations.
Each well pad inspection followed the approach below:
1. Record the entry sign of the well pad when available. Survey the entire well pad with OGI camera.
2. Record the number and type of site process equipment such as well heads, tanks, and emission control devices.
3. Record AVO indications of emissions from the storage tanks, closed vent system to the control devices and control devices.
4. Using the OGI camera, survey each process in infrared modes (auto, manual, and/or high-sensitivity modes). Record any uncontrolled emissions with the OGI camera and describe the frequency and magnitude of emissions in the field notebook.
5. Observe control devices (enclosed combustor or utility flare) for visible emissions. If there is visible emissions present, conduct Method 22 and record the observations.
6. Using another OGI camera, if available, confirm any observations of uncontrolled emissions with another Inspector.
7. If there are operators present onsite, share any Areas of Concern.
Page 2 of 4
Table 1 lists general inspection and well pad details for each inspected well pad. The well pad information located in Table 1 is from the North Dakota Industrial Commission (NDIC) well index located online at https://www.dmr.nd.gov/oilgas/.
Table 1: Inspection and Facility Details of Facilities Inspected
Date 10/22/24
Arrival Time 12:31
10/22/24 12:44
Departure Time 12:39
Well Pad Name ANDinwoodie E Pad
12:47
ANBohmbach 44-98 Facility
API Number(s) 3305307690 3305307691 3305307692 3305307895 3305303305 3305304230 3305304322 3305304323 3305304324
Latitude 48.0499925
48.0524464
Longitude -102.76491
-102.7523
Tables 2 and 3 below summarize inspection observations. Table 2 summarizes storage tank observations. Table 3 includes details of control devices and related observations. See Appendix A for a log of images and videos taken during the inspections.
Page 3 of 4
Table 2: Inspection Details: Storage Tank Observations
Number of
AVO (Audio, visual,
Well Pad Name Storage Tanks olfactory) Observations
E Pad AN-Dinwoodie 18 -
44-98 Facility AN-Bohmbach 0 -
Emissions Description
- -
Media File Name
- -
Table 3: Inspection Details: Control Devices and AVO/OGI Observations
Number
Visible
of
Pilot Active
Control Control Device Flame Flaring
Well Name
Device(s) Type(s)
(Y/N) (Y/N)
AN-Dinwoodie E Pad
1
Air Assisted Steffes
Y
N
Method 22 Observations
None
AN-Bohmbach 44-98 Facility
HP 2
HP
Y
N
None
Y
N
None
Emission Description
- - -
Page 4 of 4
APPENDIX A: Photograph and Video Log
Media File entrysign-20241022-173318.jpg entrysign-20241022-174523.jpg
Description Entry Sign Entry Sign
Well Pad Name AN-Dinwoodie E Pad AN-Bohmbach 44-98 Facility
Appendix A Page 1 of 1
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