DERR-2025-002142

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
1
Rockwell Solutions, Inc.
718 E Bridger Lane
Elk Ridge, UT 84651
[phone]
November 28, 2023

Jay Cahoon
Holiday Oil
3115 West 2100 South
Salt Lake City, UT 84119

Re: Subsurface Investigation
Holiday Oil #75 Facility ID: 3000562
3047 W 300 North Release ID: OHS
West Point, Utah

Dear Mr. Cahoon:

Rockwell Solutions, Inc. has completed a subsurface investigation at the above-referenced facility
in accordance with State of Utah Division of Environmental Response and Remediation (DERR)
guidelines.

INTRODUCTION

During fuel delivery on May 10, 2023, the diesel underground storage tank (UST) was overfilled
and diesel fuel was released into the tank basin. The release was reported to DERR and release
code OHS was assigned to the site.

SITE DESCRIPTION

The site is an active gas station and convenience store on the southwest corner of the 300 North/
3000 West intersection in West Point, Utah. The USTs are located on the north side of the property.
A site map is provided as Figure 1.

Water and electrical lines enter the site from the north side of the site and sewer and communication
lines enter from the east side. A storm drain runs east-west between the canopy and the tank basin.
Figure 1 shows the locations of utility lines.

METHODOLOGY

The release area was investigated in October 2023. Four borings were advanced around the tank
basin in which monitoring wells were installed. Direct Push Services was employed as the drilling
contractor under the supervision of a Rockwell Solutions representative.

Five-foot soil core samples were collected continuously from the direct push borings. A portion of
the soil core was put in a zip-lock baggie to allow hydrocarbons to volatilize. The air in the zip lock
Subsurface Investigation, Holiday Oil #75, West Point, UT, Facility #3000562, Release OHS

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
2
baggie was then screened with a photoionization detector (PID). The sample with the highest PID
reading or the soil interval above the apparent water table in each boring was submitted for
laboratory analysis of MTBE, benzene, toluene, ethylbenzene, xylenes, naphthalene (MBTEXN)
total petroleum hydrocarbons-gasoline range organics (TPH-GRO) using EPA Method 8260 and
TPH-diesel range organics (TPH-DRO) using EPA Method 8015.

Monitoring wells were installed in each boring with ten or fifteen feet of 0.010-inch screen. The
wells contain a silica sand filter around the screen and a bentonite seal above the screen. A flush
grade well protector was installed at the surface. The top-of-casing elevation at each well was
measured to the nearest 0.01 foot using a transit level. Monitoring well construction diagrams are
attached.

The monitoring wells were developed and a groundwater sample was collected from MW-2, MW-3,
and MW-4 with a disposable bailer. No sample was collected from MW-1 as approximately 0.02
inches of free product were present. Groundwater samples were submitted for laboratory analysis
of MBTEXN and TPH-GRO using EPA Method 8260, and TPH-DRO using EPA Method 8015.

RESULTS

Soil Type
Soil type was evaluated during the subsurface investigation by field analysis of soil samples. MW-
1 was installed in the pea gravel backfill of the tank basin. The native soil at the site generally
consists of silty sand to approximately nine or ten feet below grade (bg), underlain by a four-to-five-
foot layer of silty clay. A sand layer begins at approximately fourteen to sixteen feet bg and extends
to at least twenty feet bg. Boring logs are attached.

Soil Analytical Results
Table 1 lists the analytical results of the soil samples collected during the subsurface investigation.
in September 2023. All concentrations are below Initial Screening Levels (ISLs). Note that the
native soil at MW-1 was not encountered until sixteen feet deep. Therefore, no soil sample was
collected near the soil/groundwater interface. The laboratory analytical reports and chain-of-
custody records for soil samples collected during the subsurface investigation are attached. PID
readings are shown on the boring logs.

Groundwater Analytical Results
Table 2 lists the analytical results of the groundwater samples collected during the subsurface
investigation. Free product was present in MW-1 and the sample from MW-4 exceeded the ISL,
but not the Tier 1 level for TPH-DRO. No hydrocarbons were detected in MW-2 or MW-3. The
laboratory analytical reports and chain-of-custody records for groundwater samples collected during
the subsurface investigation are attached.

TIER 1 CRITERIA

Land Use
The site is located in a mixed residential/commercial area. The nearest residence is located
approximately 200 feet west of the tank basin.

Subsurface Investigation, Holiday Oil #75, West Point, UT, Facility #3000562, Release OHS

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
3
Utilities
Locations of buried utility lines in the investigation area were discussed previously. The exact
depths to the utility lines are not known, but are estimated to be approximately two to three feet.
The utility line that runs closest to the known contamination is the storm drain line that runs
approximately fifteen feet south of the tank basin.

Receptors
A well search of the Water Rights database indicates three water rights are located within 500 feet
of the site. See Figure 3. The nearest water rights are water wells approximately 275 feet north and
northeast of the tank basin. The well to the north was owned by West Point City and was
abandoned in 2002. The 747-foot deep well to the northeast was drilled in 1936 and no current
information exists. It may have been destroyed. The water right to the east is listed as an
“underground water drain” for irrigation.

Based on the proximity of the storm drain, the property boundary, and other potential receptors,
Initial Screening Levels apply to this release.

CONCLUSIONS AND RECOMMENDATIONS

Free product is present in the tank basin. Groundwater contamination has migrated outside of the
tank basin, but the extent of contamination has not been defined to Initial Screening Levels. Soil
contamination was not found, but may exist at the groundwater interface zone immediately around
the tank basin.

Rockwell Solutions recommends defining the extent of groundwater contamination and using a vac
truck to remove free product and contaminated groundwater from MW-1, which is located in the
pea gravel of the tank basin.

Please feel free to contact me should you have any questions or concerns at 801-361-2930.

Sincerely,

David S Hansen
Rockwell Solutions, Inc.
Certified UST Consultant CC130

cc: Hillary Mason, DERR
Figure 1
NORTH
Approx. scale in feet
00 40
Holiday Oil #75
3047 W 300 North
West Point, Utah
t MSieap
Monitoring Well
MW-3
MW-1
MW-2MW-4
rWate
wSeer
Electric
mComunication
S a ntormDri
Figure 2
NORTH
Approx. scale in feet
00 40
Holiday Oil #75
3047 W 300 North
West Point, Utah
u a r nGrondwte Co tour
1Map0/25/2023
Monitoring Well
MW-3
90.68
MW-1
*90.81
MW-2
90.98
MW-4
90.86
-9
0.9-9-
0.8--90.7-
(85.35) = Groundwater Elevation (ft)
= Groundwater Elevation Contour (ft)
tSie
050’
Water Rights in Area
Water Well Location
NORTH
Figure 3
Holiday Oil #75
3047 W 300 North
West Point, Utah
Sampling
Location
Depth
(ft)Date MTBE
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Total
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-
DRO
(mg/kg)
0.3 0.2 9 5 142 51 150 500
0.3 0.9 25 23 142 51 1,500 5,000
MW-1, 16' 16 10/2/2023 0.07 <0.006 <0.02 <0.02 <0.02 <0.02 <0.153 <62
MW-2, 7.5' 7.5 10/2/2023 0.08 <0.006 <0.02 <0.02 <0.02 <0.02 <0.157 <62
MW-3, 7' 7 10/2/2023 0.01 <0.007 <0.02 <0.02 <0.02 <0.02 <0.166 <65
MW-4, 8' 8 10/2/2023 0.08 <0.006 <0.02 <0.02 <0.02 <0.02 <0.159 <63
TPH-GRO = Total petroleum hydrocarbons-gasoline range organics
TPH-DRO = Total petroleum hydrocarbons - diesel range organics
mg/kg = milligrams per kilogram, which approximates parts per million
ISL = Initial Screening Level
Table 1
Soil Sample Analytical Results
Holiday Oil #75, 3047 W 300 North, West Point, UT (Fac ID #3000562)
Subsurface Investigation Samples
ISL's
RBCA Tier 1 Screening Levels
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
GW
Elevation
(ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
MW-1 10/25/23 9.19 90.81
100.00
MW-2 10/25/23 8.44 90.98 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
99.42
MW-3 10/25/23 7.87 90.68 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
98.55
MW-4 10/25/23 8.47 90.86 <0.005 0.006 <0.012 <0.012 0.019 <0.012 <0.125 2.4
99.33
TPH-GRO = Total petroleum hydrocarbons-gasoline range organics
TPH-DRO = Total petroleum hydrocarbons - diesel range organics
mg/L = milligrams per liter, which approximates parts per million
ISL = Initial Screening Level
Not sampled due to 0.02" free product
Subsurface Investigation
Table 2
Groundwater Analytical Results
Holiday Oil #75, 3047 W 300 North, West Point, UT (Fac ID #3000562)
ISL's
RBCA Tier 1 Screening
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________
EP
(
FT
D
TH

.)
E
SAMPL
S
BLOWS ON
S PLAMER
SAMPLE
R
INTE
VAL
e
(fe
t)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION DEPTH
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well
PVC2”
NA
10’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-1
15
10-15
Pea gravel fill
100.00
DATE: 10/2/2023
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0Silty sand (SM), fine-grained, brown, saturated
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________
EP
(
FT
D
TH

.)
E
SAMPL
S
BLOWS ON
S PLAMER
SAMPLE
R
INTE
VAL
e
(fe
t)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION DEPTH
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well
PVC2”
NA
9’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-2
15
10-15
Sand and gravel fill
99.42
DATE: 10/2/2023
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0
Silty sand (SM), fine-grained, brown, damp
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
Concrete
Silty clay (CL), high plasticity, light red, saturated 0
0
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________
EP
(
FT
D
TH

.)
E
SAMPL
S
BLOWS ON
S PLAMER
SAMPLE
R
INTE
VAL
e
(fe
t)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION DEPTH
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well at 16 after bottom of
boring filled with sand.
PVC2”
NA
8’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-3
15
10-15
Sand and gravel fill
98.55
DATE: 10/2/2023
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0
Silty sand (SM), fine-grained, brown, damp
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
Concrete
Silty clay (CL), high plasticity, light red, saturated
0
0
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________
EP
(
FT
D
TH

.)
E
SAMPL
S
BLOWS ON
S PLAMER
SAMPLE
R
INTE
VAL
e
(fe
t)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION DEPTH
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well
PVC2”
NA
9’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-4
15
10-15
Pea gravel fill
99.33
DATE: 10/2/2023
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0
Silty sand (SM), fine-grained, brown, damp
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
Concrete
Silty clay (CL), high plasticity, light red, saturated 0
0
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Rockwell Solutions, Inc
Attn: Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
Work Order: 23J0433
Project: Holiday Oil #75
10/12/2023
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/5/23 10:26 @ 1.1 °C
10/12/2023
Holiday Oil #75
Sample ID: MW-1, 16'
Lab ID: 23J0433-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/2/23 9:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%10/6/2310/6/230.1 CTF800080.7Total Solids
MBTEXn
mg/kg dry 10/9/2310/9/230.006 EPA 8260D/5030BNDBenzene
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 10/9/2310/9/230.006 EPA 8260D/5030B0.07Methyl tert-Butyl Ether (MTBE)
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDToluene
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 10/9/2310/9/230.153 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 10/9/2310/6/2362EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J0433
www.ChemtechFord.com
Page 2 of 7Page 2 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/5/23 10:26 @ 1.1 °C
10/12/2023
Holiday Oil #75
Sample ID: MW-2, 7.5'
Lab ID: 23J0433-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/2/23 11:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%10/6/2310/6/230.1 CTF800080.6Total Solids
MBTEXn
mg/kg dry 10/9/2310/9/230.006 EPA 8260D/5030BNDBenzene
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 10/9/2310/9/230.006 EPA 8260D/5030B0.08Methyl tert-Butyl Ether (MTBE)
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDToluene
mg/kg dry 10/9/2310/9/230.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 10/9/2310/9/230.157 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 10/10/2310/10/2362EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J0433
www.ChemtechFord.com
Page 3 of 7Page 3 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/5/23 10:26 @ 1.1 °C
10/12/2023
Holiday Oil #75
Sample ID: MW-3, 7'
Lab ID: 23J0433-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/2/23 12:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%10/6/2310/6/230.1 CTF800077.2Total Solids
MBTEXn
mg/kg dry 10/11/2310/11/230.007 EPA 8260D/5030BNDBenzene
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 10/11/2310/11/230.007 EPA 8260D/5030B0.01Methyl tert-Butyl Ether (MTBE)
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDToluene
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 10/11/2310/11/230.166 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 10/10/2310/10/2365EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J0433
www.ChemtechFord.com
Page 4 of 7Page 4 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/5/23 10:26 @ 1.1 °C
10/12/2023
Holiday Oil #75
Sample ID: MW-4, 8'
Lab ID: 23J0433-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/2/23 13:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%10/6/2310/6/230.1 CTF800078.8Total Solids
MBTEXn
mg/kg dry 10/11/2310/11/230.006 EPA 8260D/5030BNDBenzene
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 10/11/2310/11/230.006 EPA 8260D/5030B0.08Methyl tert-Butyl Ether (MTBE)
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDToluene
mg/kg dry 10/11/2310/11/230.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 10/11/2310/11/230.159 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 10/10/2310/10/2363EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J0433
www.ChemtechFord.com
Page 5 of 7Page 5 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/5/23 10:26 @ 1.1 °C
10/12/2023
Holiday Oil #75
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Project Name: Holiday Oil #75 CtF WO#: 23J0433
www.ChemtechFord.com
Page 6 of 7Page 6 of 7
Page 7 of 7
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Rockwell Solutions, Inc
Attn: Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
Work Order: 23J2286
Project: Holiday Oil #75
10/31/2023
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/26/23 15:14 @ 2.3 °C
10/31/2023
Holiday Oil #75
Sample ID: MW-2
Lab ID: 23J2286-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/25/23 9:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 10/30/2310/30/230.005 EPA 8260D/5030BNDBenzene
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDEthylbenzene
mg/L 10/30/2310/30/230.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDNaphthalene
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDToluene
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 10/30/2310/30/230.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 10/30/2310/27/231.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J2286
www.ChemtechFord.com
Page 2 of 6Page 2 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/26/23 15:14 @ 2.3 °C
10/31/2023
Holiday Oil #75
Sample ID: MW-3
Lab ID: 23J2286-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/25/23 9:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 10/30/2310/30/230.005 EPA 8260D/5030BNDBenzene
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDEthylbenzene
mg/L 10/30/2310/30/230.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDNaphthalene
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDToluene
mg/L 10/30/2310/30/230.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 10/30/2310/30/230.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 10/30/2310/27/231.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J2286
www.ChemtechFord.com
Page 3 of 6Page 3 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/26/23 15:14 @ 2.3 °C
10/31/2023
Holiday Oil #75
Sample ID: MW-4
Lab ID: 23J2286-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/25/23 9:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 10/27/2310/27/230.005 EPA 8260D/5030B0.006Benzene
mg/L 10/27/2310/27/230.012 EPA 8260D/5030BNDEthylbenzene
mg/L 10/27/2310/27/230.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L J-LOW-L10/27/2310/27/230.012 EPA 8260D/5030BNDNaphthalene
mg/L 10/27/2310/27/230.012 EPA 8260D/5030BNDToluene
mg/L 10/27/2310/27/230.012 EPA 8260D/5030B0.019Xylenes, total
Gasoline Range
mg/L 10/27/2310/27/230.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 10/30/2310/27/231.0 EPA 8015 C2.4Diesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 23J2286
www.ChemtechFord.com
Page 4 of 6Page 4 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
10/26/23 15:14 @ 2.3 °C
10/31/2023
Holiday Oil #75
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Flag Descriptions
J-LOW-L = Estimated low due to low recovery of LCS
Project Name: Holiday Oil #75 CtF WO#: 23J2286
www.ChemtechFord.com
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