DERR-2025-001739

FUEL SYSTEMS | GENERAL CONTRACTING | ENVIRONMENTAL SERVICES | WASTE SOLUTIONS
ENERGY SOLUTIONS | AUTOMOTIVE & COMMERCIAL EQUIPMENT
P.O. BOX 3360
DES MOINES, IA 50316
4140 E. 14TH STREET
DES MOINES, IA 50313
PHONE: [phone]
CORPORATE HEADQUARTERS
WWW.SENECACO.COM
STORE.SENECACO.COM
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Testing Summary
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3/4/2025 TLT-W2500104
LTT, LD, ATG, S
Holiday Oil Company
11747 Lone Peak Parkway, Suite 201
Draper
UT
84020
Gideon Baxter
Holiday Oil #24
6415 W 3500 S
West Valley
UT
84128
4000397
ATG - Monitoring System Certification VR TLS-350 03/04/2025 Pass
ATG - PEI Monitoring 3 Probes 03/04/2025 Pass
LD-Leak Detector Unleaded West LD 03/04/2025 Pass
LD-Leak Detector Premium LD 03/04/2025 Pass
LD-Leak Detector Unleaded East LD 03/04/2025 Pass
Line Test 3 Lines 03/04/2025 Pass
Liquid Status Report 6 Sensors 03/04/2025 Pass
Mark Shirley Garrett Herlache
515-262-5000
)LHOG1RWHV
4140 E. 14TH STREET
DES MOINES, IA 50313
PHONE: [phone]
CORPORATE HEADQUARTERS
P.O. BOX 3360
DES MOINES, IA 50316
WWW.SENECACO.COM
STORE.SENECACO.COM
Testing Summary
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FUEL SYSTEMS | GENERAL CONTRACTING | ENVIRONMENTAL SERVICES | WASTE SOLUTIONS
ENERGY SOLUTIONS | AUTOMOTIVE & COMMERCIAL EQUIPMENT
Site Location -
Holiday Oil #24
West Valley, UT
Job #: TLT-W2500104
Arrived on site and checked in with manager. Opened sumps and dispenser and then began testing.
ATG/AMC – Tested/Passed
Sensor - Tested/Passed. Tested hydrostatic interstitial sensors in low liquid alarm on 3/4/2025. Returned
on 3/5/2025 to test interstitial sensors in high liquid alarm.
Line Test- Tested/Passed.
Leak Detector – Tested/Passed
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4140 E. 14TH STREET
DES MOINES, IA 50313
PHONE: [phone]
CORPORATE HEADQUARTERS
P.O. BOX 3360
DES MOINES, IA 50316
WWW.SENECACO.COM
STORE.SENECACO.COM
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Holiday Oil #24 3/4/2025
6415 W 3500 S West Valley UT 4000397
Gideon Baxter
VR TLS-350
T1 Unl W 11627 T2 Prm 11627
✔847390-107
✔794380-343
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✔294380-208
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T3 Unl E 11627
✔847390-107
✔794380-343
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Garrett Herlache
2327 3/4/2025
Seneca Companies, Inc.4140 E. 14th Street
Des Moines IA
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4140 E. 14TH STREET
DES MOINES, IA 50313
PHONE: [phone]
CORPORATE HEADQUARTERS
P.O. BOX 3360
DES MOINES, IA 50316
WWW.SENECACO.COM
STORE.SENECACO.COM
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4140 E. 14TH STREET
DES MOINES, IA 50313
PHONE: [phone]
CORPORATE HEADQUARTERS
P.O. BOX 3360
DES MOINES, IA 50316
WWW.SENECACO.COM
STORE.SENECACO.COM
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P.O. BOX 3360
DES MOINES, IA 50316
WWW.SENECACO.COM
STORE.SENECACO.COM
LD 1
)8(/6<67(06_*(1(5$/&2175$&7,1*_(19,5210(17$/6(59,&(6_:$67(62/87,216
(1(5*<62/87,216_$872027,9( &200(5&,$/(48,30(17 
Holiday Oil #24 3/4/2025
6415 W 3500 S TLT-W2500104
West Valley Gideon Baxter
UT 84128
1 2 3 4
Unl W Prm Unl E
VMI VR VMI
LD2000 FX1V LD2000
Dry Dry Dry
32 30 29
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17071186 unreadable unreadable
Garrett Herlache 2327
UPSS Precision Test Report
Date 03/05/2025
Report #US215780
Site Holiday Oil
6415 W 3500 S
West Valley
UT 84120
USA
Test Date(s)03/04/2025
Reason for Test Annual Compliance
E-mail: [e-mail]
Website: www.leightonobrien.com
Service Distributor: Seneca Companies, Inc.
www.senecaco.com
Tel. [phone]
EXECUTIVE SUMMARY
The test results indicate that the lines have passed the tests and have meet the USEPA requirements for leak
detection using precision testing methods.
RECOMMENDATIONS
There are no recommendations.


West Valley Holiday Oil US215780 Diagnostic Report to 04-03-2025

Page 2


AIM

METHODOLOGY

To investigate the integrity of the UPSSs due to Annual
Compliance

Lines were tested to a 0.05 gph leak rate using Leighton
O'Brien PM2 test equipment & procedures.

SUMMARY OF LINES RESULTS AS TESTED

Product Lines - Round 1 Pressure Tests Test Date Result
Regular Tank 1 to Dispenser (7,8) 03/04/2025 PASS
Premium Tank 2 to Dispenser (7,8) 03/04/2025 PASS
Regular Tank 3 to Dispenser (7,8) 03/04/2025 PASS



COMMENTS/DISCUSSIONS

The test results indicate that the lines have passed the tests and have meet the USEPA requirements for leak
detection using precision testing methods.



RECOMMENDATIONS 
There are no recommendations.




FUEL SYSTEM DETAILS 
Fuel Operation System Pressure
Tank Double Wall (Fiberglass/Fiberglass)
Line Fibreglass 





West Valley Holiday Oil US215780 Diagnostic Report to 04-03-2025

Page 3


ADDENDUM 
Licensed Tester Garrett Herlache
Report Prepared by Jason Weber


Leighton O'Brien
Field Services Pty Ltd

Phone: [phone]
Fax: [phone]

USA: [phone]
Email: [e-mail]

www.leightonobrien.com

Glossary of Terms
UPSSs: Underground Petroleum Storage
Systems.
USEPA: United States of America Environmental
Protection Agency.
The underground pipe and tank configurations
contained in this report are deduced from information
gathered at the site by Leighton O'Brien Field Services
and by information given to Leighton O'Brien Field
Services by the client.

Test technology used: Leighton O'Brien wet test (mass
based), Leighton O'Brien ullage test (pressure or
vacuum), Quantitative Wet Line Test PM2 and
Qualitative Dry Line Test PM2

Leighton O'Brien Field Services are provided on the
terms and conditions set out in the conditions of sale
document. The Leighton O'Brien service is warranted
to the invoiced value of services performed in
accordance with section 64A of the Australian
Consumer Law (Schedule 2 of the Competition and
Consumer Act 2010).








West Valley Holiday Oil US215780 Diagnostic Report to 04-03-2025

Page 4


LINE TESTS DETAILS

Line Tests - Round 1 Pressure Tests Date Start End Cert # Result Condition gal/hr Psi
Premium Tank 2 to Dispenser (7,8)* 03/04/25 14:20 14:56 551926 PASS Wet 0 47.53
Regular Tank 1 to Dispenser (7,8)* 03/04/25 14:20 14:56 551926 PASS Wet 0 47.53
Regular Tank 3 to Dispenser (7,8)* 03/04/25 14:20 14:56 551926 PASS Wet 0 47.53
Lines tested to a 0.05 gph leak rate using Leighton O'Brien PM2 test equipment & procedures
*Lines were manifolded during testing


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DES MOINES, IA 50313
PHONE: [phone]
CORPORATE HEADQUARTERS
P.O. BOX 3360
DES MOINES, IA 50316
WWW.SENECACO.COM
STORE.SENECACO.COM
7HVWHUV PXVW XSORDGDFRS\ RI WKLV FRPSOHWHG IRUP ZLWKUHSRUWVSKRWRV DQGHPDLOWR0DUN 6KLUOH\ DQG(PPD3HWURZLW]
Dispenser/Tank Sump free of all tools, liquid & debris upon completion of work?
Were any sensors replaced?
Programming on Monitoring Console checked for positive shutdown?
All containment & UDC sensors returned to proper placement & locked (if applicable).
All containment lids & retaining bolts securely fastened (if applicable).
All dispenser door panels are closed & locked. Flint Loc/security alarms activated (if applicable).
All test gauges/test isolation devices were properly removed.
All secondary containment boots have been pulled back/removed.
All site owned keys have been returned to site manager/representative.
All monitor alarms generated have been logged & responded to appropriately.
Monitor is free of alarms & displaying All Functions Normal.
Holiday Oil #24 6415 W 3500 S
-RE TLT-W2500104
West Valley UT 84128 3/4/2025
LTT, LD, ATG, S
13:30 15:30
✔
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✔
Garrett Herlache
Gideon Baxter
✔