DAQ-2024-008632

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DAQC-597-24
Site ID 14408 (B4)

MEMORANDUM

TO: STACK TEST FILE – UINTA WAX OPERATING, LLC – Randlett Compressor
Station

THROUGH: Rik Ombach, Minor Source Oil and Gas Compliance Section Manager

FROM: Paul Bushman, Environmental Scientist

DATE: June 21, 2024

SUBJECT: Source: One (1) Caterpillar G3516J engine, one (1) Caterpillar G3516B engine,
and two (2) Caterpillar G3516 ULB engines, Unit IDs: #1, #2, #4, and #5
Location: Remote location in Uintah County, UT
Contact: Karen Pratt: 720-990-9927
Tester: Oasis Emission Consultants, Inc.
Site ID #: 14408
Permit/AO #: DAQE-AN144080005-15 dated November 2, 2015
Subject: Review of Pretest Protocol dated June 20, 2024

On June 20, 2024, Utah Division of Air Quality (DAQ) received a test notification for the testing of one
(1) Caterpillar G3516J engine, one (1) Caterpillar G3516B engine, and two (2) Caterpillar G3516 ULB
engines located at Randlett Compressor Station, Uintah County, UT. Testing will be performed during the
July 31st, 2024, through August 2nd, 2024, test campaign to determine compliance with the emission
limits found in condition II.B.2.a of DAQE-AN144080005-15.

PROTOCOL CONDITIONS:

1. RM 1 used to determine sample velocity traverses: OK
2. RM 2 used to determine gas velocity and volumetric flow rate: OK
3. RM 3A used to determine dry molecular weight of the gas stream: OK
4. RM 320 used to determine NOx, CO, H2O, and VOC emissions: OK

DEVIATIONS: No deviations stated in the protocol.

CONCLUSION: The protocol appears to be acceptable.

RECOMMENDATION: Send protocol review and test date confirmation notice.

ATTACHMENTS: Uinta Wax Operating, LLC test notification and pretest protocol.
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