DAQ-2024-008521

Department of
Environmental Quality
Kimbcrly D. Shclley
Executive Director
DIVISION OF AIR QUALITY
Bryce C. Bird
Director
DEIDRE HENDERSON
Lieutenant Governor
|une7,2024 DAQC-CAI57080001-24
Site ID 1s708 (Bl)
Sent Via Certified Mail No. 70070220000100683299
Ryan Zillner
Ovintiv USA Inc.
370 lTth Street, Suite 1700
Denver, Colorado 80202-5632
Dear Mr. Zlllner,
Re: Compliance Advisory - Ovintiv USA Inc. - Knoll 13-104-2 - Duchesne County
On March 28,2024,a representative of the Utah Division of Air Quality (DAQ) conducted an inspection of
Ovintiv USA Inc. - Knoll 13-10-4-2 remotely located with the latitude and longitude of 40.14382, -
I I0.102057; Duchesne County.
The DAQ observed the following regulations of concem:
R307-508-3 - VOC Control Devices
R307-501-4 - General Requirements
R307-503-4 - Auto-Igniters
These findings may be a violation of Utah Air Conservation Rules. Ovintiv USA Inc. - Knoll
13-10-4-2 is required to comply with the above regulations. A written response to this letter is required
within ten (10) business days of receipt of this letter.
Additional details about the above observations and regulations are included with this letter. Please contact
Stephen Foulger at [e-mail] or [phone] if you have any additional questions.
Sincerely,
/
Rik Ombach
Minor Source Oil and Gas Compliance Section Manager
cc: TriCounty Health Department
Alan Humpherys, Manager, Minor Source NSR Section
195 North 1950 West. Salt Lake City, UT
Mailing Address: P.O. Box 144820. Salt Lake City, UT 84114-4820
Telephone [phone] . Fax [phone]. T.D.D. [phone]
www.deq.utah.got'
Printed on l00o/o recycled paper
DAQC-CAls708000l-24
Page 2
Potential Violation(s)
On March 28,2024, Stephen Foulger, an inspector from the DAQ conducted an inspection at Ovintiv USA
Inc. - Knoll 13-10-4-2located remotely with the latitude and longitude:40.14382, -110.102057; Duchesne
County, Utah.
At the time of the inspection, the DAQ documented the following potential violation:
The purpose of a Compliance Advisory (CA) is to document observations made by the DAQ. You are
responsible for complying with the Utah Air Conservation Rules. There are possible administrative and
civil penalties for failing to do so. Section l9-2-l15 of the Utah Code Annotated provides that violators of
the Utah Air Conservation Act and/or any order issued there under may be subject to a civil penalty of up
to $10,000 per day for each violation.
When considering if the deficiencies are resolved, the DAQ will consider the written response to this CA.
Responses may include information demonstrating compliance with the regulations or an anticipated
schedule from your company to be in compliance with the applicable regulations. Once received, the DAQ
will review your response and the CA may be revised as a result of that review.
Failure to respond in writing within ten (10) business days of receipt of this CA shall be considered in the
escalation of subsequent enforcement action and assessment of penalties.
Possible DAQ actions to resolve a CA include: No Further Action Letter, Warning Letter, Early
Administrative Settlement with reduced civil penalty, Settlement Agreement with civil penalty, or Notice
of Violation and Order to Comply.
This CA does not limit or preclude the DAQ from pursuing additional enforcement options. Additionally,
this CA does not constitute a bar to enforcement action for conditions that the DAQ did not observe or
evaluate, or any other conditions found during future inspections.
A meeting may be requested to discuss this CA. Please contact Stephen Foulger at: [e-mail] or
[phone] if you would like to requeSt a meeting or if you have any questions.
Requirement and Rule Comments and Observations
The VOC control device(s) required by R307-506 or R307-
507 has a control effrciency of 95%o or greater, operates with
no visible emissions and has an operational auto-igniter
according to R307-503. [R307-508-3(l)]
Out of Compliance: Flare found unlit
and not combusting at the time of
inspection.
Any flare has an operational auto-igniter. [R307-503-4]Out of Compliance: Auto-igniter found
in non-working condition at the time of
inspection.
VOC emissions are minimized as reasonably practicable by
equipment design, maintenance and operation practices.
[R307-s0r4(1)]
Out of Compliance: Emissions found
coming from, pop off valve of separator,
dump valve on scrubber, and unlit flare.
Air pollution control equipment is designed and installed
appropriately, maintained and operated to control emissions.
1R307-s0r-4(2)l
Out of Compliance: Emissions found
coming from, pop off valve of separator,
dump valve on scrubber, and unlit flare.
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