DERR-2024-005660

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]
April 1, 2024

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

Re: Additional 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 additional subsurface investigation activities 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.

An initial Subsurface Investigation was completed and the report was submitted on November 28,
2023. Approximately 0.02 inches of free product was measured in MW-1. On January 19, 2024,
approximately 476 gallons of groundwater and free product were removed from MW-1 by a Sump
and Trap vacuum truck.

Groundwater contamination was not defined during the subsurface investigation. The purpose of
the additional investigation was to install monitoring wells to define the extent of groundwater
contamination.

Additional 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
METHODOLOGY

Three monitoring wells were installed on March 1, 2024. Monitoring well MW-5 was installed near
the western border of the site. Monitoring well MW-6 was installed north of MW-6 near the
northern boundary of the site adjacent to the western driveway. MW-7 was installed north, across
300 North. Well locations are shown on Figure 1. 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
baggie was then screened with a photoionization detector (PID). As no PID readings were detected
from any of the core samples, a laboratory sample was collected from the soil interval above the
apparent groundwater table in each boring and 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 to a depth of eighteen feet with 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.

The monitoring wells were developed and a groundwater sample was collected with a disposable
bailer. The 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. The
native soil at the site generally consists of silty sand to approximately ten feet below grade (bg),
underlain by a layer of silty clay that extends to approximately 19.5 feet bg. Boring logs are
attached.

Soil Analytical Results
Table 1 lists the analytical results of the soil samples collected during both investigations. No
concentrations were detected in samples collected on March 1, 2024. The laboratory analytical
reports and chain-of-custody records for soil samples collected during the additional subsurface
investigation are attached. PID readings are shown on the boring logs.

Groundwater Depth and Flow
Table 2 lists the top-of-casing elevations and depths to water at the site monitoring wells.
Groundwater monitoring data indicates depth to groundwater varied from seven to eight feet below
grade. Groundwater flow on March 13, 2024, was to the southwest, as shown on Figure 1.

Additional 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
Groundwater Analytical Results
Table 2 lists the analytical results of the groundwater samples collected at the site. Approximately
0.01 inches of free product was present in MW-1 and a film of free product was observed in MW-4.
Samples were not collected from MW-1 and MW-4. No hydrocarbons were detected in any of the
other five monitoring wells. The laboratory analytical reports and chain-of-custody records for
samples collected during the subsurface investigation are attached.

CONCLUSIONS AND RECOMMENDATIONS

The extent of soil and groundwater contamination has been defined to ISLs at the site. Soil
contamination is limited to the area immediately around and west of the UST basin. Free product is
present in the tank basin backfill and in the native soil west of the tank basin.

Rockwell Solutions recommends continued groundwater extraction from MW-1 in the tank basin
pea gravel fill and from MW-4. Also, groundwater samples should be collected again in
approximately six months.

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
MW-3
MW-1
MW-2MW-4
Figure 1
NORTH
Approx. scale in feet
00 40
Holiday Oil #75
3047 W 300 North
West Point, Utah
oun at r e atGrdwe El v ion
ap 3/1M3/24
Monitoring Well
(85.35) = Groundwater Elevation (ft)
= Groundwater Elevation Contour (ft)
MW-2
92.04
MW-1
NM
MW-4
91.96
MW-3
91.87
MW-5
91.11
MW-6
91.75
MW-7
92.65
9 .-
-20
91.5-
-
9 .-
-25
NM = Not measured
MW-3
MW-1
MW-2MW-4
Figure 2
NORTH
Approx. scale in feet
00 50
Holiday Oil #75
3047 W 300 North
West Point, Utah
D iTPH-RO n
u rGrondwate 3/13/24
Monitoring Well
[<1.0] TPH-DRO (mg/L)
= Extent of Free Product Diesel
MW-2
[<1]
MW-1
0.01” FP
MW-4
Film FP
MW-3
[<1]
MW-5
[<1]
MW-6
[<1]
MW-7
[<1]
NA = Not analyzed
-P dFree ro u c t-
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
MW-5, 6-7' 6-7 3/1/2024 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03 <0.320 <64
MW-6, 6-7' 6-7' 3/1/2024 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03 <0.285 <63
MW-7, 6-7' 6-7 3/1/2024 <0.008 <0.008 <0.02 <0.02 <0.02 <0.02 <0.198 <62
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 03/13/24 7.38 NM
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 03/13/24 7.38 92.04 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
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 03/13/24 6.68 91.87 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
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 03/13/24 7.37 91.96
MW-5 03/13/24 6.87 91.11 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
97.98
MW-6 03/13/24 6.95 91.75 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
98.70
MW-7 03/13/24 6.91 92.65 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1
99.56
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 0.01' free product
Not sampled due to free product film (<0.01')
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
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: 24C0062
Project: Holiday Oil #75
3/8/2024
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:
3/1/24 16:18 @ 3.1 °C
3/8/2024
Holiday Oil #75
Sample ID: MW-5 @ 6-7'
Lab ID: 24C0062-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/1/24 9:50
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%3/6/243/5/240.1 CTF800078.2Total Solids
MBTEXn
mg/kg dry 3/4/243/4/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 3/4/243/4/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 3/4/243/4/240.320 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 3/4/243/4/2464EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C0062
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:
3/1/24 16:18 @ 3.1 °C
3/8/2024
Holiday Oil #75
Sample ID: MW-6 @ 6-7'
Lab ID: 24C0062-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/1/24 11:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%3/6/243/5/240.1 CTF800079.0Total Solids
MBTEXn
mg/kg dry 3/4/243/4/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 3/4/243/4/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 3/4/243/4/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 3/4/243/4/240.285 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 3/4/243/4/2463EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C0062
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:
3/1/24 16:18 @ 3.1 °C
3/8/2024
Holiday Oil #75
Sample ID: MW-7 @ 6-7'
Lab ID: 24C0062-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/1/24 12:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%3/6/243/5/240.1 CTF800080.1Total Solids
MBTEXn
mg/kg dry 3/4/243/4/240.008 EPA 8260D/5030BNDBenzene
mg/kg dry 3/4/243/4/240.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 3/4/243/4/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 3/4/243/4/240.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 3/4/243/4/240.02 EPA 8260D/5030BNDToluene
mg/kg dry 3/4/243/4/240.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 3/4/243/4/240.198 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 3/4/243/4/2462EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C0062
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:
3/1/24 16:18 @ 3.1 °C
3/8/2024
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#: 24C0062
www.ChemtechFord.com
Page 5 of 6Page 5 of 6
Page 6 of 6
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: 24C1102
Project: Holiday Oil #75
3/20/2024
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 8
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:
3/15/24 11:54 @ 3.3 °C
3/20/2024
Holiday Oil #75
Sample ID: MW-2
Lab ID: 24C1102-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/13/24 17:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDBenzene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDToluene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 3/15/243/15/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 3/19/243/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C1102
www.ChemtechFord.com
Page 2 of 8Page 2 of 8
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:
3/15/24 11:54 @ 3.3 °C
3/20/2024
Holiday Oil #75
Sample ID: MW-3
Lab ID: 24C1102-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/13/24 17:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDBenzene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDToluene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 3/15/243/15/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 3/19/243/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C1102
www.ChemtechFord.com
Page 3 of 8Page 3 of 8
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:
3/15/24 11:54 @ 3.3 °C
3/20/2024
Holiday Oil #75
Sample ID: MW-5
Lab ID: 24C1102-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/13/24 16:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDBenzene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDToluene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 3/15/243/15/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 3/19/243/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C1102
www.ChemtechFord.com
Page 4 of 8Page 4 of 8
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:
3/15/24 11:54 @ 3.3 °C
3/20/2024
Holiday Oil #75
Sample ID: MW-6
Lab ID: 24C1102-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/13/24 16:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDBenzene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDToluene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 3/15/243/15/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 3/19/243/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C1102
www.ChemtechFord.com
Page 5 of 8Page 5 of 8
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:
3/15/24 11:54 @ 3.3 °C
3/20/2024
Holiday Oil #75
Sample ID: MW-7
Lab ID: 24C1102-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/13/24 16:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDBenzene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 3/15/243/15/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDToluene
mg/L 3/15/243/15/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 3/15/243/15/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 3/19/243/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Holiday Oil #75 CtF WO#: 24C1102
www.ChemtechFord.com
Page 6 of 8Page 6 of 8
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:
3/15/24 11:54 @ 3.3 °C
3/20/2024
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#: 24C1102
www.ChemtechFord.com
Page 7 of 8Page 7 of 8
Page 8 of 8
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTALDEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOPOF CASING ELEV. ___________ LOGGED BY _____________________________________________
DESCRIPTION / SOILCLASSIFICATION
GRAPHIC LOG
AND
WELLCONSTRUCTION
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well at 18 feet
PVC2”
NA
7’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-5
15
10-15
Sand and gravel fill
97.98
DATE: 3/1/2024
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0
Silty sand (SM), fine-grained, brown, moist
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
Silty clay (CL), high plasticity, brown, saturated 0
0
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTALDEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOPOF CASING ELEV. ___________ LOGGED BY _____________________________________________
DESCRIPTION / SOILCLASSIFICATION
GRAPHIC LOG
AND
WELLCONSTRUCTION
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well at 18 feet
PVC2”
NA
7’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-6
15
10-15
Sand and gravel fill
98.70
DATE: 3/1/2024
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0
Silty sand (SM), fine-grained, brown, moist
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
Silty clay (CL), high plasticity, brown, saturated 0
0
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTALDEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOPOF CASING ELEV. ___________ LOGGED BY _____________________________________________
DESCRIPTION / SOILCLASSIFICATION
GRAPHIC LOG
AND
WELLCONSTRUCTION
00
05
10
20
PID
Direct Push
Jarret, Direct Push
3”
End of Boring at 20 feet. Set monitoring well at 18 feet
PVC2”
NA
7’
0.01”
David Hansen
20’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
MW-7
15
10-15
Sand and gravel fill
99.56
DATE: 3/1/2024
LOCATION:
PROJECT: Holiday Oil #75
3047 W 300 North
West Point, Utah
0
Silty sand (SM), fine-grained, brown, moist
15
200
Sand (SW), fine-grained, poorly sorted, brown, saturated
15-20
Silty clay (CL), high plasticity, brown, saturated 0
0