DERR-2024-006333

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651, 801-361-2930, [e-mail]
Rockwell Solutions, Inc.
718 E Bridger Lane
Elk Ridge, UT 84651
[phone]
April 16, 2024

Mrs. Andrea Johnson
Jenkins Oil
1100 West Industrial Road
Cedar City, 84721

Re: Subsurface Investigation Report
Rally Stop #1, 2635 Freeway Drive, Cedar City, Utah
Facility ID #6000390; Release OCN

Dear Mrs. Johnson:

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

INTRODUCTION

Rally Stop #1 (JR’s Truck Stop), is a full-service truck stop and fueling station located at 2635
Freeway Drive in Cedar City, Utah. Diesel product lines were discovered leaking into the sumps
below two dispensers at the above-referenced site in November, 2021. Fuel had leaked out of the
sumps into the soil. The lines were replaced to the two dispensers. Soil samples were collected during
line replacement on December 20, 2021, which confirmed diesel fuel had impacted the soil. The site
was assigned release id OCN.

An initial subsurface investigation was attempted, but, the direct push methodology was only able to
penetrate fifteen to twenty-eight feet deep. However, soil sample analytical results indicated
contaminated soil to at least twenty-eight feet in the immediate dispenser area. A work plan was
submitted to continue the subsurface investigation using ODEX drilling methodology to penetrate the
rocky soil and to install vapor wells for potential future remediation.

Three vapor wells were installed on May 31 – June 2, 2023. The drilling schedule did not allow a
fourth well to be installed. Soil analytical results from the three wells indicated at least one additional
boring would be required to delineate the contamination.

On September 13-15, 2023, two additional vapor wells were installed.

Additional Investigation, Rally Stop #1, Cedar City, Utah
2
Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651, 801-361-2930, [e-mail]

METHODOLOGY

Soil Sampling
The five borings for the vapor wells were installed using direct push methodology as deep as possible
and then switching to ODEX technology with split spoon sampling when direct push refusal was
encountered. Direct Push Services was employed as the drilling contractor under the supervision of a
Rockwell Solutions representative. The drill rig broke down at VW-5 at fifty-five feet below grade.

A portion of the soil sample core or split spoon 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).
Laboratory samples were submitted to characterize the vertical extent of contamination. Laboratory
samples were submitted for laboratory analysis of benzene, toluene, ethylbenzene, xylenes,
naphthalene (BTEXN) using EPA Method 8260 and total petroleum hydrocarbons-diesel range
organics (TPH-DRO) using EPA Method 8015.

Two-inch vapor recovery wells were installed in all five borings. Each well was constructed with
0.010-inch screen from the bottom of the boring up to approximately five feet below grade (bg). 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. Monitoring well construction diagrams are attached.

RESULTS
Soil Type
Soil type was evaluated during the subsurface investigation by field analysis of soil samples. In
general, the upper thirteen to fourteen feet of native soil consists of sand, under which is a sandy gravel
sand layer to at least sixty-five feet. Boring logs are attached.

Soil Analytical Results
Table 1 lists the analytical results of all soil samples collected during the subsurface investigations.
TPH-DRO concentrations exceeded Tier 1 Screening Levels in all five wells. Contamination extends
in some wells to more than fifty feet deep. Figures 3 and 4 are cross sections showing the approximate
extent of subsurface soil contamination.

The horizontal extent of contamination has not been fully defined west. Figure 5 shows the
approximate horizontal extent of soil contamination.

CONCLUSIONS AND RECOMMENDATIONS

Soil contamination exceeding Tier 1 levels has been identified and partially defined in the area around
the known release at diesel dispenser #4.

Rockwell Solutions recommends the following:

 Install additional vapor wells to fully delineate the extent of soil contamination
 Prepare a Corrective Action Plan to remediate the soil contamination

Additional Investigation, Rally Stop #1, Cedar City, Utah
3
Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651, 801-361-2930, [e-mail]

If you need additional information or have any questions, please contact me at [phone].

Sincerely,

David S Hansen
Certified UST Consultant CC0130
Rockwell Solutions, Inc.

cc: Hong Lei Tao, DERR
Figure 1 Site Map
NORTH
Approx. scale in feet
00 30
Rally Stop #1
2635 Freeway Drive
Cedar City, Utah
VW-1 Soil Vapor Extraction Well
D-2, 3’
B-5
B-2
B-1 Boring Location
VW-2/B-1
VW-1
VW-4
VW-3
VW-5 B-2
B-3
B-4
B-5
Figure 2 Cross Section Line
NORTH
Approx. scale in feet
00 30
Rally Stop #1
2635 Freeway Drive
Cedar City, Utah
VW-1 Soil Vapor Extraction Well
D-2, 3’
B-5
B-2
B-1 Boring Location
VW-2/B-1
VW-1
VW-4
VW-3
B’
VW-5
A’
B-2
B
B-3
A
B-4
B-5
5415 South
Figure 3 Cross Section A-A’
60-
30-
20-
10-
0-
Depth (ft)
50-
Sand (SW)
Sandy Gravel (GW)
8,200 = TPH-DRO concentration in soil (mg/kg)
Approx. scale in feet
10
Approx. scale in feet
0
10
70-
Approximate Extent of Tier 1 Contamination
Rally Stop #1
2635 Freeway Drive
Cedar City, Utah
B-4
<57
B-2
<55
VW-2/B-1
4,910
2,610
<55
11,200
10,100
4,350
40-<54
8,240
VW-1
13,900
<50
1,640
9,180
10,300
22,800
D-4
A A’
5415 South
Figure 4 Cross Section B-B’
60-
30-
20-
10-
0-
Depth (ft)
50-
Approx. scale in feet
10
Approx. scale in feet
0
10
Approximate Extent of Tier 1 Contamination
Rally Stop #1
2635 Freeway Drive
Cedar City, Utah
B-3
<50
VW-2/B-1
4,910
2,610
<55
11,200
10,100
4,350
40-<54
8,240
VW-3
6,810
30,000
22,800
D-4 VW-5
15,700
<56
6,970
<53
8,200 = TPH-DRO concentration in soil (mg/kg)
Sand (SW)
Sandy Gravel (GW)
B B’
D-2, 3’
B-5
B-2 VW-3
30,000
B-2
<55
B-3
<50
B-4
<57
B-5
<55
VW-4
20,100
VW-5
15,700
Figure 5 Soil Contamination
Map
NORTH
Approx. scale in feet
00 20
Rally Stop #1
2635 Freeway Drive
Cedar City, Utah
VW-1 Soil Vapor Extraction Well
B-1 Boring Location
D-2
4,390
VW-2/B-1
11,200
VW-1
13,900
D-4
22,800
D-2 Piping Repair Sample Location
Maximum TPH-DRO (mg/kg) at sample location
VW-1
13,900
Approximate Extent of TPH-DRO Contamination to Tier 1 Level
Sample
Depth
(feet) Date
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-DRO
(mg/kg)
D-2, 3' 3 12/20/2021 <0.01 <0.03 0.05 0.62 0.05 4,390
D-4, 3' 3 12/20/2021 <0.01 0.04 1.1 6.9 1.87 22,800
B-1, 10' 10 3/30/2022 <0.11 <0.27 0.46 <0.27 3.37 10,100
B-1, 15' 15 3/30/2022 <0.1 <0.25 <0.25 <0.25 1.75 4,350
B-1, 20' 20 3/30/2022 <0.1 <0.25 <0.25 <0.25 0.45 4,910
B-1, 25' 25 3/30/2022 <0.11 <0.28 <0.28 <0.28 2.35 8,240
B-1, 28' 28 3/30/2022 <0.11 <0.27 <0.27 <0.27 3.99 11,200
B-2, 25 25 3/30/2022 <0.11 <0.28 <0.28 <0.28 <0.28 <55
B-3, 20' 20 3/30/2022 <0.01 <0.02 <0.02 <0.02 <0.02 <50
B-4, 20' 20 3/30/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <57
B-5, 5' 5 3/30/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <55
B-5, 10' 10 3/30/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <55
VW-1, 10' 10 5/31/2023 <0.12 <0.29 <0.29 <0.29 <0.29 1,640
VW-1, 24-25' 24-25 5/31/2023 <0.11 <0.28 0.34 2.29 11 13,900
VW-1, 34-35' 34-35 5/31/2023 <0.11 <0.28 <0.28 1.46 7.85 9,180
VW-1, 50' 50 5/31/2023 <0.11 <0.28 <0.28 4.65 6.37 10,300
VW-1, 67' 67 6/1/2023 <0.01 <0.02 <0.02 <0.02 <0.02 <50
VW-2, 30' 30 6/1/2023 <0.11 <0.28 <0.28 <0.28 <0.28 2,610
VW-2, 40' 40 6/1/2023 <0.009 <0.02 <0.02 <0.02 <0.02 <54
VW-2, 50' 50 6/1/2023 <0.009 <0.02 <0.02 <0.02 <0.02 <55
VW-3, 14-15' 14-15 6/1/2023 <0.11 <0.28 <0.28 <0.28 2.1 6,970
VW-3, 37' 37 6/2/2023 <0.008 <0.02 <0.02 <0.02 <0.02 6,810
VW-3, 55' 55 6/2/2023 <0.01 <0.03 <0.03 <0.03 <0.03 30,000
Table 1
Rally Stop #1 (UST Facility 6000390, LUST No. OCN)
2635 Freeway Drive, Cedar City, Utah
Soil Sample Results
Additional investigation, vapor well installation
Page 1 of 2
Sample
Depth
(feet) Date
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-DRO
(mg/kg)
Table 1
Rally Stop #1 (UST Facility 6000390, LUST No. OCN)
2635 Freeway Drive, Cedar City, Utah
Soil Sample Results
VW-4, 30' 30 9/13/2023 <0.01 <0.03 <0.03 <0.03 <0.03 3,220
VW-4, 45' 45 9/13/2023 <0.01 <0.03 <0.03 <0.03 <0.03 20,100
VW-4, 65' 65 9/13/2023 <0.01 <0.03 <0.03 <0.03 0.04 127
VW-5, 14' 14 9/14/2023 <0.01 <0.03 0.13 0.72 <0.03 15,700
VW-5, 30' 30 9/14/2023 <0.01 <0.03 <0.03 <0.03 <0.03 <56
VW-5, 51' 51 9/15/2023 <0.01 <0.03 <0.03 <0.03 <0.03 <53
0.2 9 5 142 51 500
0.9 25 23 142 51 5,000
TPH-DRO = total petroleum hydrocarbons-diesel range organics
BTEXN analyzed by EPA Method 8260.
TPH-DRO analyzed by EPA Method 8015
RBCA Tier 1 Screening Levels
Initial Screening Levels
Page 2 of 2
BORING LOG
HOLE 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 _____________________________________________
PROJECT: Rally Stop #1
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
VW-1
ODEX
David Hansen
LOCATION:BORING LOG
HOLE NO.
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
JT, Direct Push Services
2635 Freeway Drive
Cedar City, Utah
10
20
60
End of Boring at 65 feet. Set vapor well.
50
40
30 2” PVC
with
0.010"
Screen
Roadbox
Bentonite
seal
4.5”2”PVC 0.01”
-
Sandy gravel (GW), poorly sorted, light brown and white, damp
Concrete
10
20
50
40
30
60
558
528
495
620
49
DATE: 5/31/23 - 6/1/23
65’
Sand and gravel fill
Silt (ML) low plasticity, brown, damp
Sand (SW), fine-grained, brown, damp
Sandy gravel (GW), poorly sorted, light brown and white, damp
Sand (SW), fine-grained, brown, damp
Silt (ML) low plasticity, brown, damp
Sandy gravel (GW), poorly sorted, light brown and white, damp
6
507
545
733
558
507
503
475
BORING LOG
HOLE 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 _____________________________________________
PROJECT: Rally Stop #1
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
VW-2
ODEX
David Hansen
LOCATION:BORING LOG
HOLE NO.
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
JT, Direct Push Services
2635 Freeway Drive
Cedar City, Utah
10
20
60
End of Boring at 50 feet. Set vapor well.
50
40
30 2” PVC
with
0.010"
Screen
Roadbox
Bentonite
seal
4.5”2”PVC 0.01”
-
Sandy gravel (GW), poorly sorted, light brown and white, damp
Concrete
10
20
50
40
30
60
11
137
16
9
DATE: 6/1/23
50’
Sand and gravel fill
Sand (SW), fine-grained, brown, damp 7
6
22
227
17
3
BORING LOG
HOLE 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 _____________________________________________
PROJECT: Rally Stop #1
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
VW-3
ODEX
David Hansen
LOCATION:BORING LOG
HOLE NO.
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
JT, Direct Push Services
2635 Freeway Drive
Cedar City, Utah
10
20
60
End of Boring at 55 feet. Set vapor well.
50
40
30 2” PVC
with
0.010"
Screen
Roadbox
Bentonite
seal
4.5”2”PVC 0.01”
-
Sandy gravel (GW), poorly sorted, light brown and white, damp
Concrete
10
20
50
40
30
60
163
38
DATE: 6/2/23
55’
Sand and gravel fill
Sand (SW), fine-grained, brown, damp 0
105
203
211
38
233
92
BORING LOG
HOLE 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 _____________________________________________
PROJECT: Rally Stop #1
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
VW-4
ODEX
David Hansen
LOCATION:BORING LOG
HOLE NO.
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
Conner, Direct Push Services
2635 Freeway Drive
Cedar City, Utah
10
20
60
End of Boring at 65 feet. Set vapor well.
50
40
30 2” PVC
with
0.010"
Screen
Roadbox
Bentonite
seal
4.5”2”PVC 0.01”
-
Sandy gravel (GW), poorly sorted, light brown and white, damp
Concrete
10
20
50
40
30
60
134
230
0
DATE: 9/13-14/23
65’
Sand and gravel fill
Sand (SW), fine-grained, brown, damp
9
6
3
0
0
0
0
0
0
BORING LOG
HOLE 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 _____________________________________________
PROJECT: Rally Stop #1
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
VW-5
ODEX
David Hansen
LOCATION:BORING LOG
HOLE NO.
E
F
)
D
PTH (
T.
MP
SA
LES
BLOWS ON
SA LERMP
SAMPLE
INTERVAL
(feet)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION E
TH
D
P
PID
Conner, Direct Push Services
2635 Freeway Drive
Cedar City, Utah
10
20
60
End of Boring at 56 feet. Set vapor well.
50
40
30 2” PVC
with
0.010"
Screen
Roadbox
Bentonite
seal
4.5”2”PVC 0.01”
-
Sandy gravel (GW), poorly sorted, light brown and white, damp
Concrete
10
20
50
40
30
60
3
0
DATE: 9/14-15/23
55’
Sand and gravel fill
Sand (SW), fine-grained, brown, damp
0
9
73
249
399
390
530
70
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: 23F0268
Project: Rally Stop #1
6/9/2023
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 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-1, 10'
Lab ID: 23F0268-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/31/23 12:45
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800086.7Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2358EPA 8015C/3550B1640Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.12 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.29 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.29 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.29 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.29 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 2 of 14Page 2 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-1, 24-25'
Lab ID: 23F0268-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/31/23 13:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800089.1Total Solids
Diesel Range
mg/kg dry 6/8/236/7/23561EPA 8015C/3550B13900Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A0.34Ethylbenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A11.0Naphthalene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A2.29Xylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 3 of 14Page 3 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-1, 34-35'
Lab ID: 23F0268-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/31/23 13:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800088.1Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2357EPA 8015C/3550B9180Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A7.85Naphthalene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A1.46Xylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 4 of 14Page 4 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-1, 50'
Lab ID: 23F0268-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/31/23 16:05
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800090.8Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2355EPA 8015C/3550B10300Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A6.37Naphthalene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A4.65Xylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 5 of 14Page 5 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-1, 67'
Lab ID: 23F0268-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/1/23 10:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800096.7Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2350EPA 8015C/3550BNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 6 of 14Page 6 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-2, 30'
Lab ID: 23F0268-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/1/23 13:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800087.9Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2357EPA 8015C/3550B2610Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 7 of 14Page 7 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-2, 40'
Lab ID: 23F0268-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/1/23 15:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800092.8Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2354EPA 8015C/3550BNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.009 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 8 of 14Page 8 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-2, 50'
Lab ID: 23F0268-08Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/1/23 16:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800090.7Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2355EPA 8015C/3550BNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.009 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 9 of 14Page 9 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-3, 14-15'
Lab ID: 23F0268-09Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/1/23 8:35
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800090.1Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2355EPA 8015C/3550B6970Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030A2.10Naphthalene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.28 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 10 of 14Page 10 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-3, 37'
Lab ID: 23F0268-10Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/2/23 11:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800096.4Total Solids
Diesel Range
mg/kg dry 6/7/236/7/2350EPA 8015C/3550B6810Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.008 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.02 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 11 of 14Page 11 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
Sample ID: VW-3, 55'
Lab ID: 23F0268-11Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/2/23 13:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/8/236/7/230.1 CTF800093.6Total Solids
Diesel Range
mg/kg dry 6/8/236/7/23534EPA 8015C/3550B30000Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 6/6/236/6/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/6/236/6/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/6/236/6/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/6/236/6/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/6/236/6/230.03 EPA 8260D /5030ANDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 12 of 14Page 12 of 15
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:
6/5/23 14:09 @ 2.9 °C
6/9/2023
Rally Stop #1
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
S-HB = Surrogate exceeds upper control limit. All associated analytes are non-detect and therefore accepted.
Project Name: Rally Stop #1 CtF WO#: 23F0268
www.ChemtechFord.com
Page 13 of 14Page 13 of 15
Page 14 of 15
Page 15 of 15
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: 23I1511
Project: Rally Stop #1
9/27/2023
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 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
Sample ID: VW-4, 30'
Lab ID: 23I1511-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/13/23 12:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/22/239/22/230.1 CTF800092.8Total Solids
Diesel Range
mg/kg dry 9/22/239/21/2354EPA 8015 C3220Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 9/21/239/21/230.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 2 of 9Page 2 of 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
Sample ID: VW-4, 45'
Lab ID: 23I1511-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/13/23 13:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/22/239/22/230.1 CTF800090.8Total Solids
Diesel Range
mg/kg dry 9/22/239/21/23551EPA 8015 C20100Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 9/21/239/21/230.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 3 of 9Page 3 of 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
Sample ID: VW-4, 65'
Lab ID: 23I1511-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/13/23 18:45
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/22/239/22/230.1 CTF800096.1Total Solids
Diesel Range
mg/kg dry 9/22/239/21/2350EPA 8015 C127Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 9/21/239/21/230.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030B0.04Naphthalene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 4 of 9Page 4 of 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
Sample ID: VW-5, 14'
Lab ID: 23I1511-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/14/23 13:45
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/22/239/22/230.1 CTF800086.5Total Solids
Diesel Range
mg/kg dry 9/22/239/21/23578EPA 8015 C15700Diesel Range Organics
Volatile Organic Compounds
mg/kg dry 9/21/239/21/230.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030B0.13Ethylbenzene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/21/239/21/230.03 EPA 8260D/5030B0.72Xylenes, total
Project Name: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 5 of 9Page 5 of 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
Sample ID: VW-5, 30'
Lab ID: 23I1511-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/14/23 16:25
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/239/26/230.1 CTF800089.4Total Solids
Diesel Range
mg/kg dry 9/25/239/25/2356EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 9/25/239/25/230.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 6 of 9Page 6 of 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
Sample ID: VW-5, 51'
Lab ID: 23I1511-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/15/23 8:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/239/26/230.1 CTF800093.7Total Solids
Diesel Range
mg/kg dry 9/25/239/25/2353EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 9/25/239/25/230.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/25/239/25/230.03 EPA 8260D/5030BNDXylenes, total
Project Name: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 7 of 9Page 7 of 9
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:
9/20/23 9:40 @ 5.3 °C
9/27/2023
Rally Stop #1
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: Rally Stop #1 CtF WO#: 23I1511
www.ChemtechFord.com
Page 8 of 9Page 8 of 9
Page 9 of 9