DERR-2025-003223

Monitoring Well Installation and
Groundwater Monitoring Report
Fast Stop Travel Center #1116
370 North Main Street
Meadow, Millard County, Utah
Utah Release Site: OJT
Facility Identification No. 2000340

Prepared for:

Fast Stop Travel Centers
P.O. Box 150545
Ogden, Utah 84415

Prepared by:

8787 S. Redwood Road #200
West Jordan, Utah 84088
801-505-9251
www.broadbentinc.com

April 25, 2025

Project No. 24-14-110

TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................................................. 1
2.0 GENERALIZED TIER 1 CRITERIA & PREVIOUS INVESTIGATIONS ......................................................... 1
3.0 SITE INVESTIGATION ACTIVITIES ........................................................................................................ 1
3.1 Project Setup, Permitting and Utility Clearance .............................................................................. 2
3.2 Health and Safety Plan Preparation ................................................................................................. 2
3.3 Soil Boring and Monitoring Well Installation ................................................................................... 2
3.4 Soil Sampling .................................................................................................................................... 3
3.5 Laboratory Analysis .......................................................................................................................... 3
3.6 Well Development and Groundwater Sampling .............................................................................. 3
3.7 Site Surveying ................................................................................................................................... 4
3.8 Investigation-Derived Residuals Management ................................................................................ 4
4.0 GROUNDWATER MONITORING EVENT ............................................................................................. 4
5.0 RESULTS OF INVESTIGATION ............................................................................................................. 4
6.0 RECOMMENDATIONS ........................................................................................................................ 5
7.0 LIMITATIONS ...................................................................................................................................... 5
8.0 REFERENCES....................................................................................................................................... 5

LIST OF FIGURES
Figure 1: Site Location Map
Figure 2 Site Layout Map
Figure 3: Groundwater Potentiometric Map
Figure 4 : Soil Analytical Results
Figure 5 : Groundwater Analytical Results

LIST OF TABLES
Table 1: Laboratory Analytical Data – Soil
Table 2: Laboratory Analytical Data – Groundwater

LIST OF APPENDICES
Appendix A: Field Methods (QA/QC Methods)
Appendix B: Lithologic Logs and Well Construction Details
Appendix C: Field Data Sheets (March 2025 Groundwater Sampling)
Appendix D: Laboratory Analytical Reports
Broadbent & Associates, Inc. Monitoring Well Installation and Groundwater Monitoring Report
West Jordan, Utah Fast Stop #1116/Meadow, Utah
April 25, 2025
Page 1

1.0 INTRODUCTION
Broadbent & Associates, Inc. (Broadbent) is pleased to present this Monitoring Well Installation and
Groundwater Monitoring Report associated with further investigation of Release ID OJT at Fast Stop Travel
Center #1116 located at 370 North Main Street in Meadow, Millard County, Utah (Site). The Site location
is depicted in Figure 1. The activities documented in this investigation were originally requested by the
Utah Division of Environmental Response and Remediation (DERR) in their February 1, 2024 letter.

Investigation activities included the installation of four (4) groundwater monitoring wells (Figure 2) to
address the extent of impact of residual hydrocarbon mass at the Site. In addition, this investigation
included the sampling of the four (4) installed groundwater monitoring wells to evaluate concentrations
of residual petroleum hydrocarbons mass within the area of impact. Utah Certified Sampler, Sarah
Hamilton (GS-1869) conducted sampling associated with this report.

2.0 GENERALIZED TIER 1 CRITERIA & PREVIOUS INVESTIGATIONS
The Site is approximately 10 acres and is comprised of five (5) Millard County parcels consisting of assessor
parcel numbers M-7551, M-7550, M-7548-1, M-7547-2, and M-7547. The Site is currently partially
developed with an active Conoco fueling station, including gasoline and diesel sales, a store with retail,
bathrooms, and a kitchen, and overnight truck parking. Also included on the Site are currently
undeveloped areas to the east and south of the Conoco fueling station, which were historically utilized for
agriculture.

The Site has three active ASTs and one active UST (one 20,000-gallon capacity diesel AST, two 20,000-
gallon capacity gasoline ASTs, and one non-regulated 10,000-gallon DEF UST). The Site provides fuel
through a retail/light vehicle canopy and a second tractor-trailer/heavy truck canopy.
Land use in the area surrounding the Site includes commercial/industrial to the north and west-southwest,
agricultural/residential to the west, and undeveloped/residential to the south.
Subsurface soil conditions generally consist of silts and gravel down to approximately 40 feet below
ground surface (bgs). Sediment appears to remain fine with silts and clay with some caliche reported
generally down to total depth drilled. Groundwater was observed at approximately 90 feet bgs.
It is generally understood that initial investigation activities occurred in April 2024 with attempted boring
installations conducted by other entities. Drilling via direct push encountered refusal at 40-45 feet below
ground surface (bgs) in two (2) attempted borings. Groundwater was not encountered during initial boring
activities, but subsurface impacts were reported.

3.0 SITE INVESTIGATION ACTIVITIES
The purpose of this investigation was to facilitate subsurface sampling and monitoring well installation to
assist in evaluating potential impacts associated with Release ID OJT. Four (4) borings were installed to
facilitate collection of soil samples and were then completed as groundwater monitoring wells for future
monitoring and sampling. Groundwater monitoring wells were installed in the following locations as
depicted in Figure 2:

Broadbent & Associates, Inc. Monitoring Well Installation and Groundwater Monitoring Report
West Jordan, Utah Fast Stop #1116/Meadow, Utah
April 25, 2025
Page 2

• Monitoring well MW-1 near the southeast corner of the fueling canopy, between the canopy and
the c-store;
• Monitoring well MW-2 near the southwest corner of the fueling canopy;
• Monitoring well MW-3 on the north side near the center of the fueling canopy; and
• Monitoring well MW-4 on the south side near the center of the fueling canopy.

Monitoring wells MW-2 and MW-4 were installed in the same general area as the two (2) previous borings
from the previous April 2024 investigation. Field methods implemented during Site investigation activities
are detailed in Appendix A.

3.1 PROJECT SETUP, PERMITTING AND UTILITY CLEARANCE
Project set-up activities included contracting with Holt Drilling Services, LLC., a Utah-licensed drilling
contractor, to conduct boring and well installation activities utilizing eight (8)-inch diameter hollow stem
augers. Broadbent marked the proposed drilling locations and ensured that the drilling contractor notified
Blue Stakes of the pending work a minimum of five (5) days prior to initiating ground disturbance.
Broadbent also contracted with a Bloodhound Locating, a private utility locating company as additional
measures for subsurface utility clearance. Each borehole location was cleared to a depth of approximately
6.5 feet bgs using a hand auger and/or post-hole digger by the drilling contractor prior to borehole
advancement. Broadbent provided adequate notification of drilling activities to appropriate parties
including DERR (who wished to be present during Site investigation activities) and Site personnel. Drilling
activities were conducted generally between February 18 and February 21, 2025.

3.2 HEALTH AND SAFETY PLAN PREPARATION
Broadbent prepared a Site-specific Health and Safety Plan (HASP) for worker protection and hazard
identification. The HASP included the following at a minimum:
• Site and task specific hazards;
• Information on chemicals to be in use (SDS);
• Directions and map to nearest hospital; and
• Contact information for utilities and Broadbent.

A copy of the HASP was provided to Holt Drilling to inform them of potential hazards associated with the
Site and emergency procedures.

3.3 SOIL BORING AND MONITORING WELL INSTALLATION
Four (4) soil borings were installed to assist with subsurface investigation of potential residual
hydrocarbon mass located underneath or near the Site’s light vehicle/retail-canopy. During drilling
activities, soil cuttings were described by the on-Site Broadbent representative using the Universal Soil
Classification System (USCS) in accordance with ASTM D 2488-93 Standard Practice for Description and
Identification of Soils (Visual-Manual Procedure). Soil cuttings were examined using visual and manual
methods for parameters including odor, staining, color, grain size, and moisture content. Drill cuttings
were monitored with a photo-ionization detector (PID) and placed in labeled 55-gallon drums.
Broadbent’s on-Site representative was a Utah-certified sampler (Sarah Hamilton GS-1869), and project
oversight was conducted under the direction of an Utah-certified UST Consultant (Aric Morton, CC #0276).
Depth to water was determined to be approximately 90 feet bgs. Each boring drilled to approximately 100
feet bgs to accommodate season groundwater fluctuations. Subsurface impacts were observed by
Broadbent & Associates, Inc. Monitoring Well Installation and Groundwater Monitoring Report
West Jordan, Utah Fast Stop #1116/Meadow, Utah
April 25, 2025
Page 3

Broadbent and DERR in each soil boring. Each soil boring was completed as a groundwater monitoring
well as requested by DERR.

Groundwater monitoring wells MW-1 through MW-4 were constructed with two (2)-inch diameter
Schedule 40 PVC pipe extending from total depth drilled (approximately 100 feet bgs) to just below the
ground surface. The screen interval consisted of 25 feet of 0.010-inch factory slotted screen extending
from the approximate total depth of 100 feet bgs up to approximately 75 feet bgs. Blank casing extends
above the screen interval (approximately 75 feet bgs) to just below ground surface. Clean-washed silica
sand extends from total depth drilled to approximately two feet (2.0 feet) above the screen interval.
Approximately 1.5-2.0 ft of bentonite clay was placed above the sand interval and hydrated in-place as
part of the annular seal. Neat cement grout was placed above the bentonite plug completing the surface
seal. Wellheads were secured with locking well caps and protected by traffic rated well vaults installed
just below local land surface(s) to prevent damage due to snow removal equipment. Lithologic and well
construction logs are provided in Appendix B.

3.4 SOIL SAMPLING
Soil samples were collected at approximate intervals of five (5) feet, and was continuously screened as
possible using a photoionization detector (PID) to identify areas of potential impact. Soil samples were
submitted for laboratory analysis at the first encounter of elevated PID readings, highest PID readings,
and first encounter of low PID readings beneath impacts or total depth as requested by DERR. Field
screening for potential volatile organic compounds (VOCs) in soil cuttings were conducted with a portable
PID which was properly calibrated at the start of each workday. PID and olfactory observations suggested
potential petroleum hydrocarbon impacts at approximately 40-50 to 100 feet bgs while drilling each
boring, with the exception of MW-4 which suggested impacts from 25 to 100 feet bgs. A maximum PID
reading of 2919 parts per million by volume [ppmV] was measured in MW-1, a maximum PID reading of
3378 ppmV was measured in MW-2, a maximum PID reading of 7203 ppmV was measured in MW-3, and
a maximum PID reading of 9356 ppmV was measured in MW-4. Each sample was collected in a California-
modified split spoon sampler and transferred to laboratory prepared glass soil jars prior to delivery for
laboratory analysis.

3.5 LABORATORY ANALYSIS
Collected samples were submitted to Chemtech-Ford Laboratories in Sandy, Utah under chain-of-custody
procedures with ice preservation. Chemtech-Ford is a Utah State-certified environmental laboratory
and conducted the following analysis: GRO and DRO by EPA Method 8015B (also included
fractionation of the highest submitted sample); Benzene, Toluene, Ethylbenzene, Total Xylenes, and
Naphthalene (BTEXN) by EPA Method 8260B; and for Methyl Tert-Butyl Ether (MTBE) by EPA
Method 8260B as well. Approximately three (3) soil samples per boring were submittal to
Chemtech-Ford for analysis.

3.6 WELL DEVELOPMENT AND GROUNDWATER SAMPLING
Broadbent mobilized to the Site on March 5 and March 10 to complete well development and
groundwater sampling in each new well. Well development consisted of surging and pumping each well
until relatively silt-free water was removed. After development, the wells were left to hydraulically
equilibrate prior to water level measurement and sampling.

Broadbent & Associates, Inc. Monitoring Well Installation and Groundwater Monitoring Report
West Jordan, Utah Fast Stop #1116/Meadow, Utah
April 25, 2025
Page 4

3.7 SITE SURVEYING
Broadbent surveyed the top of casing elevations of the new wells relative to monitoring well MW-4 on
February 22, 2025.

3.8 INVESTIGATION-DERIVED RESIDUALS MANAGEMENT
Residual solids generated during Site investigation activities are still located on-Site in appropriately
labelled Department of Transportation (DOT) approved 55-gallon drums pending profiling and evaluation
of disposal options. It is anticipated that on-Site aeration of soil may be requested.

4.0 GROUNDWATER MONITORING EVENT
Broadbent conducted an initial groundwater monitoring and sampling event utilizing the four (4) installed
monitoring wells associated with the Site (MW-1 through MW-4) on March 10, 2025. Depth to
groundwater and the presence of LNAPL were measured in each well prior to sampling using an oil/water
interface probe (OWIP). Monitoring wells containing a sufficient volume of groundwater and lacking
measurable LNAPL were purged and sampled. Monitoring wells suitable for sampling were purged utilizing
a submersible pump to remove three (3) well volumes or until stabilized parameters were achieved for
pH, oxidation-reduction potential (ORP), conductivity, and temperature. Purged groundwater from wells
without measurable LNAPL and decontamination waters were thin spread over impervious surface on the
Site and allowed to evaporate.

Groundwater samples were collected in laboratory-provided volatile organic analysis (VOA) containers
utilizing a bailer. Samples were submitted on ice, under chain-of-custody procedures, to Chemtech-Ford.
Groundwater samples were analyzed for the same constituents described above in Section 2.5. Field
sampling data sheets from the March 10, 2025 groundwater sampling event are included as Appendix C.

5.0 RESULTS OF INVESTIGATION

Monitoring wells MW-1 through MW-4 were installed to assist with evaluation of residual hydrocarbon
impacts associated with the Site. Elevated PID readings were observed in vadose zone soil cuttings at MW-
1 through MW-4 (maximum 9356 ppmV at 30 feet bgs at MW-4). Field PID readings are included on the
edited borehole logs included in Appendix B. Laboratory analytical results for soil samples collected during
well installation are depicted in Table 1 and groundwater analytical results are contained in Table 2 with
the full laboratory report and chain-of-custody documentation provided in Appendix D. Review of data
presented in Table 1 indicates the following initial screening level (ISL) exceedances in soil samples
collected from completed borings.

• TPH-DRO in MW-4 @ 30 feet bgs at 1690 milligrams per kilogram (mg/kg);
• TPH-GRO in MW-3 @ 60 feet bgs at 853 mg/kg and MW-4 @ 95 at 234 mg/kg;
• Benzene in three (3) of the 12 submitted samples ranging from 0.38 mg/kg in MW-2 @ 100 feet
bgs to 0.54 mg/kg in MW-1 @ 70 feet bgs;
• Ethylbenzene in MW-3 @ 60 feet bgs at 9.43 mg/kg;
• Toluene in MW-2 @ 70 feet bgs at 17.1 mg/kg;
• Total Xylenes in MW-3 @ 60 feet bgs at 170 mg/kg.

Broadbent & Associates, Inc. Monitoring Well Installation and Groundwater Monitoring Report
West Jordan, Utah Fast Stop #1116/Meadow, Utah
April 25, 2025
Page 5

Laboratory analytical results for groundwater samples collected on March 10, 2025 are depicted in Table
2 with the full laboratory report and chain-of-custody documentation provided in Appendix D.

Review of March 2025 groundwater data presented in Table 2 indicates that the following constituents
are above ISLs in groundwater samples:

• TPH-DRO in three (3) of the submitted samples ranging from 1.5 milligrams per liter (mg/L) in
MW-4 to 3.5 mg/L in MW-2;
• Ethylbenzene in MW-2 at 1.71 mg/L and MW-3 at 1.46 mg/L;

Based on the March 10, 2025 monitoring, groundwater flow direction in the vicinity of the OJT release
was towards the east at an approximate magnitude of 0.03 feet/foot. The calculated potentiometric
surface contours are depicted in Figure 3, soil analytical results are presented in Figure 4, and groundwater
analytical results are presented in Figure 5.

6.0 RECOMMENDATIONS

Residual hydrocarbon mass impacts above Utah ISLs are present in the subsurface soil and groundwater
on the Site. It is recommended that a semi-annual groundwater monitoring and sampling program be
implemented to monitor residual hydrocarbon concentrations, evaluate fluctuations in seasonal
groundwater levels, and verify the groundwater gradient direction and magnitude.

7.0 LIMITATIONS

The findings presented in this report are based upon observations of field personnel, points investigated,
results of laboratory tests performed by Chemtech-Ford Laboratories, and our understanding of DERR
practices. Our services were performed in accordance with the generally accepted standard of practice at
the time this report was written. No other warranty expressed or implied was made. This report has been
prepared for the exclusive use of Fast Stop Travel Centers. It is possible that variations in soil or
groundwater conditions could exist beyond points explored in this investigation. Also, changes in Site
conditions could occur in the future due to variations in rainfall, temperature, regional water usage, or
other factors.

8.0 REFERENCES

DERR, 2024. Subsurface Investigation Reporting and Requirements, Fast Stop #1116, 370 North Main
Street, Meadow, Utah. Facility Identification No. 2000340, Release Site OJT. February 1.

Broadbent & Associates, Inc. 2024. Site Investigation Proposal, Fast Stop #1116, 370 North Main Street,
Meadow, Utah. Facility Identification No. 2000340, Release Site OJT. November 18.

FIGURES
Site Location Map
Fast Stop #1115
370 North Main Street
Meadow, Utah
Project No. 24-14-110
Figure
Prepared by: AGH Reviewed by: JEH Date: 4/17/25
1
0
SCALE: 1 inch = 1,500 feet
1,500 3,000
LEGEND
Subject Property Boundary (Approximate)
MW-3
MW-4 MW-1
MW-2
Truck Dispenser Canopy
Auto Dispenser Canopy
B-2
B-1
Site Layout Map
Fast Stop #1115
370 North Main Street
Meadow, Utah
Project No. 24-14-110
Figure
Prepared by: AGH Reviewed by: JEH Date: 3/4/25
2
0
SCALE: 1 inch = 50 feet
50 100
LEGEND
Subject Property Boundary (Approximate)
Dispenser Island Piping (Approximate)
Previous Boring Location
Groundwater Monitoring Well Location
1
2
.
4
0
1
2
.
8
0
1
3
.
2
0
MW-3
MW-4 MW-1
MW-2
Auto Dispenser Canopy
B-2
B-1
11.66
13.81
12.41
13.08
Potentiometric Groundwater Map (3/10/25)
Fast Stop #1115
370 North Main Street
Meadow, Utah
Project No. 24-14-110
Figure
Prepared by: AGH Reviewed by: JEH Date: 3/13/25
3
0
SCALE: 1 inch = 20 feet
20 40
LEGEND
Subject Property Boundary (Approximate)
Previous Boring Location
MW-1 Monitoring Well Location and Groundwater Elevation
11.66 Groundwater Elevation Contour (0.2 feet)12.80
Groundwater Gradient Flow Direction (0.03 feet/foot)
B-1
MW-1 @ 70
B=0.54
T=12.5
E=2.74
X=17.1
M<0.02
N=0.98
GRO=79.5
DRO=121
MW-2 @ 50
B<0.01
T<0.03
E=0.05
X=0.42
M<0.02
N<0.03
GRO=3.97
DRO<62
MW-2 @ 70
B=0.43
T=17.1
E=2.57
X=46.1
M<0.02
N=0.94
GRO=132
DRO<61
MW-2 @ 100
B=0.38
T=5.76
E=1.45
X=15.4
M<0.02
N=0.41
GRO=69.6
DRO<59
MW-3 @ 45
B<0.01
T=0.04
E=0.03
X=1.10
M<0.02
N<0.03
GRO=2.59
DRO<61
MW-3 @ 60
B<0.12
T=51.9
E=9.43
X=170
M<0.18
N=5.14
GRO=853
DRO=169
MW-3 @ 100
B=0.10
T=0.07
E<0.03
X=0.13
M<0.02
N<0.03
GRO=5.53
DRO<64
MW-4 @ 30
B=0.70
T=92.6
E=99.0
X=249
M<0.17
N=18.0
GRO=2,880
DRO=1,690
MW-4 @ 90
B=0.09
T=1.25
E=1.41
X=4.21
M<0.02
N=0.27
GRO=61.7
DRO<62
MW-4 @ 95
B=0.92
T=8.69
E=3.09
X=31.0
M<0.02
N=1.39
GRO=234
DRO=149
Auto Dispenser Canopy
B-2
B-1
B=0.54
B=0.43 B=0.38
T=17.1
E=9.43
T=51.9
GRO=853
X=170
B=0.92
E=99.0
T=92.6
X=249
GRO=2,880
DRO=1,690
GRO=234
Soil Analytical Map
Fast Stop #1115
370 North Main Street
Meadow, Utah
Project No. 24-14-110
Figure
Prepared by: AGH Reviewed by: JEH Date: 3/13/25
4
0
SCALE: 1 inch = 20 feet
20 40
LEGEND
Subject Property Boundary (Approximate)
Dispenser Island Piping (Approximate)
Previous Boring Location
Groundwater Monitoring Well Location
Key to Soil Concentrations
B = Benzene (mg/kg)
T = Toluene (mg/kg)
E = Ethylbenzene (mg/kg)
X = Total Xylenes (mg/kg)
M = Methyl-tert-butyl ether (mg/kg)
N = Naphthalene (mg/kg)
GRO = Total Petroleum Hydrocarbons Gasoline Range (mg/kg)
DRO = Total Petroleum Hydrocarbons Diesel Range (mg/kg)
BDL = Below Detection Units
Concentrations in Yellow exceed UDEQ Initial Screening Levels
Concentrations in Blue exceed Tier 1 Screening Criteria
Yellow
Blue
Auto Dispenser Canopy
B-2
B-1
MW-1
B=5.29
T=3.01
E=0.314
X=1.85
M<0.008
N=0.022
GRO=19.5
DRO<1.0
MW-2
B=9.02
T=27.8
E=1.71
X=11.1
M<0.008
N=0.146
GRO=69.1
DRO=3.5
MW-3
B=9.82
T=4.24
E=1.46
X=7.49
M<0.008
N=0.130
GRO=38.5
DRO=2.7
MW-4
B=2.61
T=3.29
E=0.547
X=3.46
M<0.008
N=0.057
GRO=24.8
DRO=1.5
B=5.29
T=3.01
GRO=19.5
B=9.02
T=27.8
GRO=69.1
DRO=3.5
E=1.71
X=11.1
B=9.82
T=4.24
GRO=38.5
DRO=2.7
E=1.46
B=2.61
T=3.29
GRO=24.8
DRO=1.5
Groundwater Analytical Map
Fast Stop #1115
370 North Main Street
Meadow, Utah
Project No. 24-14-110
Figure
Prepared by: AGH Reviewed by: JEH Date: 4/1/25
5
0
SCALE: 1 inch = 20 feet
20 40
LEGEND
Subject Property Boundary (Approximate)
Dispenser Island Piping (Approximate)
Previous Boring Location
Groundwater Monitoring Well Location
Key to Groundwater Concentrations
B = Benzene (mg/L)
T = Toluene (mg/L)
E = Ethylbenzene (mg/L)
X = Total Xylenes (mg/L)
M = Methyl-tert-butyl ether (mg/L)
N = Naphthalene (mg/L)
GRO = Total Petroleum Hydrocarbons Gasoline Range (mg/L)
DRO = Total Petroleum Hydrocarbons Diesel Range (mg/L)
Concentrations in BOLD exceed laboratory detection limits
Concentrations in Yellow exceed UDEQ Initial Screening Levels
Concentrations in Blue exceed Tier 1 Screening Criteria
Yellow
Blue

TABLES
Benzene Toluene Ethyl-
benzene
Total
Xylenes MTBE Naphthalene TPH-GRO TPH-DRO
0.2 9 5 142 0.3 51 150 500
0.9 25 23 142 0.3 51 1,500 5,000
MW-1 40 02/19/25 66.7 <0.01 <0.03 <0.03 <0.08 <0.02 <0.03 <0.282 <58
MW-1 70 02/19/25 2919 0.54 12.5 2.74 17.10 <0.02 0.98 79.5 121
MW-1 95 02/19/25 204.1 <0.01 <0.03 <0.03 <0.08 <0.02 <0.03 <0.269 <56
MW-2 50 02/21/25 414.4 <0.01 <0.03 0.05 0.42 <0.02 <0.03 3.97 <58
MW-2 70 02/21/25 3378 0.43 17.1 2.57 46.1 <0.02 0.94 132 <61
MW-2 100 02/21/25 1282 0.38 5.76 1.45 15.4 <0.02 0.41 69.6 <59
MW-3 45 02/18/25 473.8 <0.01 0.04 0.03 1.10 <0.02 <0.03 2.59 <61
MW-3 60 02/18/25 7203 <0.12 51.9 9.43 170 <1.8 5.14 853 169
MW-3 100 02/18/25 88.6 0.10 0.07 <0.03 0.13 <0.02 <0.03 5.53 <64
MW-4 30 02/20/25 9356 0.07 92.6 99 249 <0.17 18.0 2880 1690
MW-4 30 02/20/25
MW-4 90 02/20/25 1555 0.09 1.25 1.14 4.21 <0.02 0.27 61.7 <62
MW-4 95 02/20/25 1564 0.92 8.69 3.09 31.0 <0.02 1.39 234 149
Concentrations in BOLD exceed Reporting Limits mg/kg = milligrams per kilogram
Highlighted concentrations exceed ISLs or Tier 1 TPH-GRO = Gasoline-range total petroleum hydrocarbons
bgs = below ground surface TPH-DRO = Diesel-range total petroleum hydrocarbons
EPA = United States Environmental Protection Agency (-) = not measured
UDEQ = Utah Department of Environmental Quality NS = not sampled
ISLs = Initial Screening Levels NA = not applicable
ppmV = parts per million by volume
Fast Stop #1116 - 370 North Main Street
Meadow, Millard County, Utah
EPA Method 8015
*Fractionation analysis performed: C5-C6 = <2.84; C7-C8 = 34.4; C9-C10 Aliphatic = 444; C9-C10 Alkyl = 856; C11-
C12 Aliphatic = 397; C11-C13 Alkyl = <0.23; C13-C16 = 114; C17-C21 = 25.6; C22-C35 = 5.98
UDEQ ISLs (mg/kg)
Tier 1 Screening Criteria (mg/kg)
Sample ID
Approximate
Sample Depth
(feet bgs)
Sample
Date
PID
(ppmV)All results reported in milligrams per kilogram (mg/kg)
EPA Method 8260B
TABLE 1
Laboratory Analytical Data - Soil
Benzene Toluene Ethyl-
benzene
Total
Xylenes MTBE Naphthalene TPH-GRO TPH-DRO
All results
EPA
Method
8260D/5030
0.005 1 0.7 10 0.2 0.7 1 1
0.3 3 4 10 0.2 0.7 10 10
87.23 11.66 3/10/2025 5.29 3.01 0.314 1.85 <0.008 0.022 19.5 <1.0
86.22 13.81 3/10/2025 9.02 27.8 1.71 11.1 <0.008 0.146 69.1 3.5
3/10/2025
87.27 12.41 3/10/2025 9.82 4.24 1.46 7.49 <0.008 0.130 38.5 2.7
86.92 13.08 3/10/2025 2.61 3.29 0.547 3.46 <0.008 0.057 24.8 1.5
C17-C21 = 0.356 mg/L; C22-C35 = 0.939 mg/L
Concentrations in BOLD exceed laboratory detection limits ISLs = Initial Screening Levels
Highlighted concentrations exceed screening levels TPH-GRO = Gasoline-range total petroleum hydrocarbons
bgs = below ground surface TPH-DRO = Diesel-range total petroleum hydrocarbons
mg/L = milligrams per liter (-) = not measured
EPA = United States Environmental Protection Agency NS = Not Sampled
UDEQ = Utah Department of Environmental Quality
100.03MW-2 *Fractionation analysis performed: C5-C6 = 7.72; C7-C8 = 2.58; C9-C10 Aliphatic = 0.261; C9-C10 Alkyl = 8.77; C11-
C12 Aliphatic = 2; C11-C13 Alkyl = <1; C13-C16 = <1; C17-C21 = <1; C22-C35 = 1
UDEQ ISLs (mg/L)
Tier 1 Screening Criteria (mg/L)
100.00MW-4
98.89MW-1
99.68MW-3
TABLE 2
Laboratory Analytical Data - Groundwater
Fast Stop #1116 - 370 North Main Street
Meadow, Millard County, Utah
Sample ID
Depth to
product
(feet below top
of casing)
Depth to
groundwater
(feet below top
of casing)
Sample DateRelative
Elevation
Relative
Elevation Depth
to Groundwater

APPENDICES

Appendix A
Field Methods
(Standard Operating Procedures)

Page 1 of 4

QUALITY ASSURANCE/QUALITY CONTROL
FIELD METHODS

Field methods discussed herein were implemented to provide for accuracy and reliability of field
activities, data collection, sample collection, and handling. Discussion of these methods is
provided below.

1.0 EQUIPMENT CALIBRATION

Equipment calibration was performed per equipment manufacturer specifications before use.

2.0 DEPTH TO GROUNDWATER AND LIGHT NON-AQUEOUS PHASE LIQUID MEASUREMENT

Depth to groundwater was measured in wells identified for gauging in the scope of work using a
decontaminated water level indicator. The depth to water measurement was taken from a cut
notch or permanent mark at the top of the well casing to which the well head elevation was
originally surveyed.

Once depth to water was measured, an oil/water interface meter or a new disposable bailer was
utilized to evaluate the presence and, if present, to measure the “apparent” thickness of light
non-aqueous phase liquid (LNAPL) in the well. If LNAPL was present in the well, groundwater
purging and sampling were not performed, unless sampling procedures in the scope of work
specified collection of samples in the presence of LNAPL. Otherwise, time allowing, LNAPL was
bailed from the well using either a new disposable bailer, or the disposal bailer previously used
for initial LNAPL assessment. Bailing of LNAPL continued until the thickness of LNAPL (or volume)
stabilized in each bailer pulled from the well, or LNAPL was no longer present. After LNAPL
thickness either stabilized or was eliminated, periodic depth to water and depth to LNAPL
measurements were collected as product came back into the well to evaluate product recovery
rate and to aid in further assessment of LNAPL in the subsurface. LNAPL thickness
measurements were recorded as “apparent.” If a bailer was used for LNAPL thickness
measurement, the field sampler noted the bailer entry diameter and chamber diameter to
enable correction of thickness measurements. Recovered LNAPL was stored on-site in a labeled
steel drum(s) or other appropriate container(s) prior to disposal.

3.0 WELL PURGING AND GROUNDWATER SAMPLE COLLECTION

Well purging and groundwater sampling were performed in wells specified in the scope of work
after measuring depth to groundwater and evaluating the presence of LNAPL. Purging and
sampling were performed using one of the methods detailed below. The method used was
noted in the field records. Purge water was stored on-site in labeled steel drum(s) or other
appropriate container(s) prior to disposal or on-site treatment (in cases where treatment using
an on-site system is authorized).

Broadbent & Associates, Inc. Quality Assurance/Quality Control
Field Methods
Page 2 of 4
3.1 Purging a Predetermined Well Volume

Purging a predetermined well volume is performed per ASTM International (ASTM)
D4448-01. This purging method has the objective of removing a predetermined volume
of stagnant water from the well prior to sampling. The volume of stagnant water is
defined as either the volume of water contained within the well casing, or the volume
within the well casing and sand/gravel in the annulus if natural flow through these is
deemed insufficient to keep them flushed out.

This purging method involves removal of a minimum of three stagnant water volumes
from the well using a decontaminated pump with new disposable plastic discharge or
suction tubing, dedicated well tubing, or using a new disposable or decontaminated
reusable bailer. If a new disposable bailer was used for assessment of LNAPL, that bailer
may be used for purging. The withdrawal rate used is one that minimizes drawdown
while satisfying time constraints.

To evaluate when purging is complete, one or more groundwater stabilization
parameters are monitored and recorded during purging activities until stabilization is
achieved. Most commonly, stabilization parameters include temperature, conductivity,
and pH, but field procedures detailed in the scope of work may also include monitoring
of dissolved oxygen concentrations, oxidation reduction potential, and/or turbidity1.
Parameters are considered stable when two (2) consecutive readings recorded three (3)
minutes apart fall within ranges provided below in Table 1. In the event that the
parameters have not stabilized and five (5) well casing volumes have been removed,
purging activities will cease and be considered complete. Once the well is purged, a
groundwater sample(s) is collected from the well using a new disposable bailer. If a new
disposable bailer was used for purging, that bailer may be used to collect the sample(s).
A sample is not collected if the well is inadvertently purged dry.

Table 1. Criteria for Defining Stabilization of Water-Quality Indicator Parameters
Parameter Stabilization Criterion
Temperature ± 0.2ºC (± 0.36ºF)
pH ± 0.1 standard units
Conductivity ± 3%
Dissolved oxygen ± 10%
Oxidation reduction potential ± 10 mV
Turbidity1 ± 10% or 1.0 NTU (whichever is greater)

3.2 Low-Flow Purging and Sampling

“Low-Flow”, “Minimal Drawdown”, or "Low-Stress” purging is performed per ASTM
D6771-02. It is a method of groundwater removal from within a well’s screened interval
that is intended to minimize drawdown and mixing of the water column in the well

1 As stated in ASTM D6771-02, turbidity is not a chemical parameter and not i ndicative of when formation-quality water is being
purged; however, turbidity may be helpful in evaluating stress on the formation during purging. Turbidity measurements are t aken
at the same time that stabilization parameter measurements are made, or, at a minimum, once when purging is initiated and again
just prior to sample collection, after stabilization parameters have stabilized. To avoid artifacts in sample analysis, turb idity should
be as low as possible when samples are collected. If turbidity values are persistently high, the withdrawal rate is lowered until
turbidity decreases. If high turbidity persists even after lowering the withdrawal rate, the purging is stopped for a period of time
until turbidity settles, and the purging process is then restarted. If this fails to solve the problem, the purging/sampling process for
the well is ceased, and well maintenance or redevelopment is considered.

Broadbent & Associates, Inc. Quality Assurance/Quality Control
Field Methods
Page 3 of 4
casing. This is accomplished by pumping the well using a decontaminated pump with
new disposable plastic discharge or suction tubing or dedicated well tubing at a low flow
rate while evaluating the groundwater elevation during pumping.

The low flow pumping rate is well specific and is generally established at a volume that
is less than or equal to the natural recovery rate of the well. A pump with adjustable
flow rate control is positioned with the intake at or near the mid-point of the
submerged well screen. The pumping rate used during low-flow purging is low enough
to minimize mobilization of particulate matter and drawdown (stress) of the water
column. Low-flow purging rates will vary based on the individual well characteristics;
however, the purge rate should not exceed 1.0 Liter per minute (L/min) or 0.25 gallon
per minute (gal/min). Low-flow purging should begin at a rate of approximately
0.1 L/min (0.03 gal/min)2, or the lowest rate possible, and be adjusted based on an
evaluation of drawdown. Water level measurements should be recorded at approximate
one (1) to two (2) minute intervals until the low-flow rate has been established, and
drawdown is minimized. As a general rule, drawdown should not exceed 25% of the
distance between the top of the water column and the pump in-take.

To evaluate when purging is complete, one or more groundwater stabilization
parameters are monitored and recorded during purging activities until stabilization is
achieved. Most commonly, stabilization parameters include temperature, conductivity,
and pH, but field procedures detailed in the scope of work may also include monitoring
of dissolved oxygen concentrations, oxidation reduction potential, and/or turbidity1.
The frequency between measurements will be at an interval of one (1) to three (3)
minutes; however, if a flow cell is used, the frequency will be determined based on the
time required to evacuate one cell volume. Stabilization is defined as three (3)
consecutive readings recorded several minutes apart falling within ranges provided in
Table 1. Samples will be collected by filling appropriate containers from the pump
discharge tubing at a rate not to exceed the established pumping rate.

3.3 Minimal Purge, Discrete Depth, and Passive Sampling

In accordance with ASTM D4448-01, sampling techniques that do not rely on purging, or
require only minimal purging, may be used if a particular zone within a screened interval
is to be sampled or if a well is not capable of yielding sufficient groundwater for purging.
To properly use these sampling techniques, a water sample is collected within the
screened interval with little or no mixing of the water column within the casing. These
techniques include minimal purge sampling which uses a dedicated sampling pump
capable of pumping rates of less than 0.1 L/min (0.03 gal/min)2, discrete depth sampling
using a bailer that allows groundwater entry at a controlled depth (e.g. differential
pressure bailer), or passive (diffusion) sampling. These techniques are based on certain
studies referenced in ASTM D4448-01 that indicate that under certain conditions,
natural groundwater flow is laminar and horizontal with little or no mixing within the
well screen.

2 According to ASTM D4448-01, studies have indicated that at flow rates of 0.1 L/min, low -density polyethylene (LDPE) and
plasticized polypropylene tubing materials are prone to sorption. Therefore, TFE -fluorocarbon or other appropriate tubing material
is used, particularly when tubing lengths of 50 feet or longer are used.

Broadbent & Associates, Inc. Quality Assurance/Quality Control
Field Methods
Page 4 of 4

4.0 DECONTAMINATION

Reusable groundwater sampling equipment were cleaned using a solution of Alconox or other
acceptable detergent, rinsed with tap water, and finally rinsed with distilled water prior to use in
each well. Decontamination water was stored on-site in appropriately labeled DOT approved
steel drum(s) or other appropriate container(s) prior to disposal.

5.0 SAMPLE CONTAINERS, LABELING, AND STORAGE

Samples were collected in laboratory prepared containers with appropriate preservative (if
preservative was required). Samples were labeled (site name, sample I.D., sampler initials, date,
and time of collection) and stored chilled (refrigerator or ice chest with ice) until delivery to a
certified laboratory, under chain of custody procedures.

6.0 CHAIN OF CUSTODY RECORD AND PROCEDURE

The field sampler was personally responsible for care and custody of the samples collected until
they were properly transferred to another party. To document custody and transfer of samples,
a Chain of Custody Record was prepared. The Chain of Custody Record provided identification of
the samples corresponding to sample labels and specified analyses to be performed by the
laboratory. The original Chain of Custody Record accompanied the shipment, and a copy of the
record was stored in the project file. When the samples were transferred, the individuals
relinquishing and receiving them signed, dated, and noted the time of transfer on the record.

7.0 FIELD RECORDS

Daily Report and data forms were completed by staff personnel to provide daily record of
significant events, observations, and measurements. Field records were signed, dated, and
stored in the project file.

Appendix B
Lithologic Logs and Well Construction Details
USCS (ppm)MOIST. PLAST. ODOR
PIDDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-1
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/19/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 900
STOP TIME: 1800
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
ANNULUS CASING
DRILLING METHOD: HSA
Page 1 of 1NOTES:
0
5
10
15
20
25
30
35
40
45
50
55
Moist
Moist
Moist
Moist
Moist
Moist
Moist
Moist
0.0
0.1
0.0
0.0
0.0
0.0
0.0
NM
66.7
77.5
880
ML
ML
GW
ML
ML
NR
CL
CL
Low
None
Low
Low
High
NR
High
High
None
Grout Asphalt
Orange to brown silt and clay
Orange to brown silt
Orange to brown well graded silt and
gravel
Orange to brown silt
Orange to brown silt and clay, little
caliche
No recovery
Gray to brown silt and clay, little
caliche
Brown clay some caliche
186 E Main St, Suite 99
Groundwater Elevation
USCS (ppm)MOIST. PLAST. ODOR
PIDDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-1
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/19/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 900
STOP TIME: 1800
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
ANNULUS CASING
DRILLING METHOD: HSA
Page 1 of 1NOTES:
60
65
70
75
80
85
90
95
100
Moist
Moist
Moist
Moist
Moist
Moist
Moist
Moist
1088
687.5
1628
2919
1135
1538
477.1
467.8
204.1
49.8
CL
CL
NR
CL
CL
CL
ML
GW
High
High
NR
High
High
High
Mod.
Low
Mod
to high
petrol
odor Bentonite
Sand
Gray to brown silt and clay, little
caliche
No recovery
Gray clay with caliche
Caliche, little clay and silt
Light brown clay
Orange to brown silt, little caliche
Orange to brown well graded sand
and gravel
Sandy, UT 84070
186 E Main St, Suite 99
Groundwater Elevation
USCS (ppm)MOIST. PLAST. ODOR
PIDDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
186 E Main St., Suite 99
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-2
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/21/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 800
STOP TIME: 1700
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
ANNULUS CASING
DRILLING METHOD: HSA
Page 1 of 1NOTES:
0
5
10
15
20
25
30
35
40
45
50
55
Moist
Moist
Moist
Moist
Moist
Moist
Moist
0.9
8.2
0.8
2.4
NR
0.6
0.6
0.3
10.0
414.4
363.5
ML
SP
ML
NR
ML
GW
CL
High
Low
Low
NR
Low
Low
High
None
Grout Asphalt
Orange to brown silt and clay
Orange to brown sand and gravel
Orange to brown silt, some fine
sand
No Recovery
Orange to brown silt and clay
Orange to brown sand and gravel
Orange to brown clay and silt
Groundwater Elevation
USCS (ppm)MOIST. PLAST. ODOR
PIDDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
186 E Main St., Suite 99
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-2
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/21/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 800
STOP TIME: 1700
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
ANNULUS CASING
DRILLING METHOD: HSA
Page 1 of 1NOTES:
60
65
70
75
80
85
90
95
100
Moist
Moist
Moist
Moist
Wet
Moist
1207
2602
3378
3101
3243
NR
3331
1164
1282
ML
ML
NR
ML
High
Low
NR
High
Mod
to high
petrol
odor
Bentonite
Sand
Orange to brown silt and clay,
little caliche
Orange to brown silt and caliche
No Recovery
Tan to orange clay and caliche
Groundwater Elevation
USCS (ppm)MOIST. PLAST. ODOR
PIDDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
186 E Main St., Suite 99
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-3
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/18/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 800
STOP TIME: 1700
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
ANNULUS CASING
DRILLING METHOD: HSA
Page 1 of 1NOTES:
0
5
10
15
20
25
30
35
40
45
50
55
Moist
0.0
0.1
0.1
0.0
0.2
0.0
0.2
0.4
0.6
73.8
142.8
SW
ML
GW
ML
ML
ML
CL
ML
Low
Low
Low
Low
Low
High
High
Low
None
Grout Asphalt
Brown sand and gravel
Brown silt and clay
Orange to brown sand some
gravel
Orange to brown silt and clay
Gray to brown silt
Gray silt, some caliche
Gray clay little silt and caliche
Gray silt little caliche
Groundwater Elevation
USCS (ppm)MOIST. PLAST. ODOR
PIDDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
186 E Main St., Suite 99
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-3
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/18/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 800
STOP TIME: 1700
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
ANNULUS CASING
DRILLING METHOD: HSA
Page 1 of 1NOTES:
60
65
70
75
80
85
90
95
100
Wet
397.8
7203
NR
2024
4109
3809
1844
562.8
252.7
88.6
ML
ML
NR
ML
CL
Low
Low
NR
High
High
Mod
to high
petrol
odor
Bentonite
Sand
Orange to brown clay and gravel
No recovery
Orange to brown silt and clay,
little caliche
Orange to brown clay, little caliche
Groundwater Elevation
USCS (ppm)ANNULUSMOIST. PLAST. ODOR
PID CASINGDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
186 E Main St., Suite 99
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-4
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/20/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 800
STOP TIME: 1700
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
DRILLING METHOD: HSA
Page 1 of 1NOTES:
0
5
10
15
20
25
30
35
40
45
50
55
Moist
0.1
2.4
NR
0.9
1508
9356
133.4
697.9
4141
3869
4559
ML
NR
GW
ML
Low
Low
Low
High
None
Grout Asphalt
Orange to brown silt
No recovery
Orange to brown sand and gravel
Tan to orange silt
Orange to brown clay and silt, little
caliche
Groundwater Elevation
USCS (ppm)ANNULUSMOIST. PLAST. ODOR
PID CASINGDEPTHSOIL
SYMB.SOIL DESCRIPTION
PROJECT INFORMATION
MONITORING WELL LOG
Sandy, UT 84070
186 E Main St., Suite 99
GROUNDWATER
DRILLING INFORMATION
WELL #: MW-4
BORING DIAMETER: 8''
PROJECT: Fast Stop #1116
LOCATION: Meadow, UT
JOB NO.: 24-14-110
LOGGED BY: SH
PROJECT MANAGER: AM
DATE DRILLED: 02/20/25
DRILLING CO.: Holt
DRILLER: Joe
START TIME: 800
STOP TIME: 1700
BORING DEPTH: 101 ft
WELL DEPTH: 100 ft
Soil sample collected
WELL CONSTRUCTION DETAILS
DRILLING METHOD: HSA
Page 1 of 1NOTES:
60
65
70
75
80
85
90
95
100
Wet
4371
4041
4070
2655
3581
2127
1555
1564
303.8
CL
CL
CL
HIgh
High
High
Mod
to high
petrol
odor
Bentonite
Sand
Gray clay, little caliche
Orange to brown clay and silt, little
caliche
Groundwater Elevation

Appendix C
Field Data Sheets (May 2024 Groundwater Sampling)

Appendix D
Laboratory Analytical Reports

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
Broadbent & Associates, Inc.
Attn: Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
Work Order: 25B1672
Project: Fast Stop #1116
3/7/2025
Approved By:
Andrew Royer, 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 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 1 @ 40
Lab ID: 25B1672-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/19/25 10:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800086.1Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 2/25/252/25/250.08 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.282 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 2/24/252/24/2558EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 2 of 16Page 2 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 1 @ 70
Lab ID: 25B1672-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/19/25 11:45
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800083.9Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030B0.54Benzene
mg/kg dry 2/25/252/25/250.28 EPA 8260D/5030B2.74Ethylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B0.98Naphthalene
mg/kg dry 2/25/252/25/250.28 EPA 8260D/5030B12.5Toluene
mg/kg dry 2/25/252/25/250.84 EPA 8260D/5030B17.1Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.843 EPA 8260B/C 5035A/[CALC]79.5Gasoline Range Organics
Diesel Range
mg/kg dry 2/24/252/24/2560EPA 8015 C121Diesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 3 of 16Page 3 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 1 @ 95
Lab ID: 25B1672-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/19/25 13:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800089.3Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-L2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 2/25/252/25/250.08 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.269 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 2/24/252/24/2556EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 4 of 16Page 4 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 2 @ 50
Lab ID: 25B1672-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/25 10:15
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800080.2Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B0.05Ethylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 2/25/252/25/250.09 EPA 8260D/5030B0.42Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.289 EPA 8260B/C 5035A/[CALC]3.97Gasoline Range Organics
Diesel Range
mg/kg dry 2/28/252/27/2562EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 5 of 16Page 5 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 2 @ 70
Lab ID: 25B1672-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/25 11:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800082.4Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030B0.43Benzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B2.57Ethylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B0.94Naphthalene
mg/kg dry 2/25/252/25/250.30 EPA 8260D/5030B17.1Toluene
mg/kg dry 2/25/252/25/250.91 EPA 8260D/5030B46.1Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.910 EPA 8260B/C 5035A/[CALC]132Gasoline Range Organics
Diesel Range
mg/kg dry 2/28/252/27/2561EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 6 of 16Page 6 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 2 @ 100
Lab ID: 25B1672-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/25 12:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800085.2Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030B0.38Benzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B1.45Ethylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B0.41Naphthalene
mg/kg dry 2/25/252/25/250.28 EPA 8260D/5030B5.76Toluene
mg/kg dry 2/25/252/25/250.85 EPA 8260D/5030B15.4Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.855 EPA 8260B/C 5035A/[CALC]69.6Gasoline Range Organics
Diesel Range
mg/kg dry 2/28/252/27/2559EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 7 of 16Page 7 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 3 @ 45
Lab ID: 25B1672-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/18/25 11:20
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800081.7Total Solids
MBTEXn
mg/kg dry 2/26/252/26/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 2/26/252/26/250.03 EPA 8260D/5030B0.03Ethylbenzene
mg/kg dry 2/26/252/26/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/26/252/26/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 2/26/252/26/250.03 EPA 8260D/5030B0.04Toluene
mg/kg dry 2/26/252/26/250.09 EPA 8260D/5030B1.10Xylenes, total
Gasoline Range
mg/kg dry 2/26/252/26/250.294 EPA 8260B/C 5035A/[CALC]2.59Gasoline Range Organics
Diesel Range
mg/kg dry 2/28/252/27/2561EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 8 of 16Page 8 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 3 @ 60
Lab ID: 25B1672-08Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/18/25 12:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800084.6Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.12 EPA 8260D/5030BNDBenzene
mg/kg dry 2/25/252/25/250.30 EPA 8260D/5030B9.43Ethylbenzene
mg/kg dry 2/25/252/25/250.18 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.30 EPA 8260D/5030B5.14Naphthalene
mg/kg dry 2/25/252/25/252.95 EPA 8260D/5030B51.9Toluene
mg/kg dry 2/25/252/25/258.86 EPA 8260D/5030B170Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/258.86 EPA 8260B/C 5035A/[CALC]853Gasoline Range Organics
Diesel Range
mg/kg dry 2/28/252/27/2559EPA 8015 C169Diesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 9 of 16Page 9 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 3 @ 100
Lab ID: 25B1672-09Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/18/25 14:50
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800078.6Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030B0.10Benzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B0.07Toluene
mg/kg dry 2/25/252/25/250.09 EPA 8260D/5030B0.13Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.297 EPA 8260B/C 5035A/[CALC]5.53Gasoline Range Organics
Diesel Range
mg/kg dry 3/3/253/3/2564EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 10 of 16Page 10 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 4 @ 30
Lab ID: 25B1672-10Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/20/25 9:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800088.1Total Solids
BETX Compounds
mg/kg dry 2/25/252/25/252.84 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 2/25/252/25/252.84 EPA 8260D/5030B34.4C7-C8 Aliphatic hydrocarbons
mg/kg dry 2/25/252/25/252.84 EPA 8260D/5030B444C9-C10 Aliphatic hydrocarbons
mg/kg dry 2/25/252/25/252.84 EPA 8260D/5030B856C9-C10 Alkyl Benzenes
mg/kg dry 2/25/252/25/250.11 EPA 8260D/5030B0.70Benzene
mg/kg dry 2/25/252/25/250.28 EPA 8260D/5030B99.0Ethylbenzene
mg/kg dry 2/25/252/25/250.17 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.28 EPA 8260D/5030B18.0Naphthalene
mg/kg dry 2/25/252/25/250.28 EPA 8260D/5030B92.6Toluene
mg/kg dry 2/25/252/25/250.85 EPA 8260D/5030B249Xylenes, total
MBTEXn
Gasoline Range
mg/kg dry 2/25/252/25/2517.0 EPA 8260B/C 5035A/[CALC]2880Gasoline Range Organics
Diesel Range
mg/kg dry 3/3/253/3/2557EPA 8015 C1690Diesel Range Organics
Semi-Volatile Compounds
mg/kg dry 3/5/253/5/250.23 EPA 8270E/3570397C11-12 Aliphatic hydrocarbons
mg/kg dry 3/5/253/5/250.23 EPA 8270E/3570114C13-C16 Aliphatic hydrocarbons
mg/kg dry 3/5/253/5/250.23 EPA 8270E/357025.6C17-C21 Aliphatic hydrocarbons
mg/kg dry 3/5/253/5/250.23 EPA 8270E/35705.98C22-C35 Aliphatic hydrocarbons
mg/kg dry 3/5/253/5/250.23 EPA 8270E/3570NDC11-C13 Alkyl Naphthalenes
mg/kg dry 3/5/253/5/250.23 EPA 8270E/3570NDTotal C12-C22 PAH
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570ND2-Methylnaphthalene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDAcenaphthene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDAcenaphthylene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDAnthracene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDBenzo (a) anthracene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDBenzo (a) pyrene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDBenzo (b) fluoranthene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDBenzo (g,h,i) perylene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDBenzo (k) fluoranthene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDChrysene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDDibenz (a,h) anthracene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDFluoranthene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDFluorene
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 11 of 16Page 11 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 4 @ 30 (cont.)
Lab ID: 25B1672-10Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/20/25 9:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds (cont.)
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDIndeno (1,2,3-cd) pyrene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/35700.78Naphthalene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDPhenanthrene
mg/kg dry 3/5/253/5/250.45 EPA 8270E/3570NDPyrene
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 12 of 16Page 12 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 4 @ 90
Lab ID: 25B1672-11Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/20/25 11:45
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800080.4Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030B0.09Benzene
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B1.41Ethylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B0.27Naphthalene
mg/kg dry 2/25/252/25/250.31 EPA 8260D/5030B1.25Toluene
mg/kg dry 2/25/252/25/250.92 EPA 8260D/5030B4.21Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/250.923 EPA 8260B/C 5035A/[CALC]61.7Gasoline Range Organics
Diesel Range
mg/kg dry 3/3/253/3/2562EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 13 of 16Page 13 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
Sample ID: MW - 4 @ 95
Lab ID: 25B1672-12Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/20/25 12:00
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/252/25/250.1 CTF800081.8Total Solids
MBTEXn
mg/kg dry 2/25/252/25/250.01 EPA 8260D/5030B0.92Benzene
mg/kg dry 2/25/252/25/251.53 EPA 8260D/5030B3.09Ethylbenzene
mg/kg dry 2/25/252/25/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/25/252/25/250.03 EPA 8260D/5030B1.39Naphthalene
mg/kg dry 2/25/252/25/251.53 EPA 8260D/5030B8.69Toluene
mg/kg dry 2/25/252/25/254.58 EPA 8260D/5030B31.0Xylenes, total
Gasoline Range
mg/kg dry 2/25/252/25/254.58 EPA 8260B/C 5035A/[CALC]234Gasoline Range Organics
Diesel Range
mg/kg dry 3/3/253/3/2561EPA 8015 C149Diesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 14 of 16Page 14 of 17
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
2/24/25 8:55 @ 3.6 °C
3/7/2025
Fast Stop #1116
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
S-04 = The surrogate recovery for this sample is outside of established control limits due to a sample matrix effect .
S-AC = Acid surrogate recovery outside of control limits. The data was accepted based on valid recovery of remaining two acid surrogates.
Project Name: Fast Stop #1116 CtF WO#: 25B1672
www.ChemtechFord.com
Page 15 of 16Page 15 of 17
Page 16 of 17
Page 17 of 17
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
Broadbent & Associates, Inc.
Attn: Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
Work Order: 25C0667
Project: Fast Stop #1116
3/28/2025
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
3/11/25 8:56 @ 4.3 °C
3/28/2025
Fast Stop #1116
Sample ID: MW-1
Lab ID: 25C0667-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/10/25 12:10
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/18/253/18/250.500 EPA 8260D/5030B5.29Benzene
mg/L 3/18/253/18/250.012 EPA 8260D/5030B0.314Ethylbenzene
mg/L 3/18/253/18/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 3/18/253/18/250.012 EPA 8260D/5030B0.022Naphthalene
mg/L 3/18/253/18/251.25 EPA 8260D/5030B3.01Toluene
mg/L 3/18/253/18/250.038 EPA 8260D/5030B1.85Xylenes, total
Gasoline Range
mg/L 3/18/253/18/251.25 EPA 8260B/C /5030A/[CALC]19.5Gasoline Range Organics
Diesel Range
mg/L 3/14/253/14/251.0 EPA 8015 CNDDiesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25C0667
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
3/11/25 8:56 @ 4.3 °C
3/28/2025
Fast Stop #1116
Sample ID: MW-2
Lab ID: 25C0667-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/10/25 14:20
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/18/253/18/251.00 EPA 8260D/5030B9.02Benzene
mg/L E3/18/253/18/250.012 EPA 8260D/5030B1.71Ethylbenzene
mg/L 3/18/253/18/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 3/18/253/18/250.012 EPA 8260D/5030B0.146Naphthalene
mg/L 3/18/253/18/252.50 EPA 8260D/5030B27.8Toluene
mg/L 3/18/253/18/257.50 EPA 8260D/5030B11.1Xylenes, total
mg/L 3/18/253/18/250.250 EPA 8260D/5030B7.72C5-C6 Aliphatic hydrocarbons
mg/L 3/18/253/18/250.250 EPA 8260D/5030B2.58C7-C8 Aliphatic hydrocarbons
mg/L 3/18/253/18/250.250 EPA 8260D/5030B0.261C9-C10 Aliphatic hydrocarbons
mg/L 3/18/253/18/250.250 EPA 8260D/5030B8.77C9-C10 Alkyl Benzenes
Gasoline Range
mg/L 3/18/253/18/257.50 EPA 8260B/C /5030A/[CALC]69.1Gasoline Range Organics
Diesel Range
mg/L 3/14/253/14/251.0 EPA 8015 C3.5Diesel Range Organics
Semi-Volatile Compounds
mg/L SPH3/25/253/24/251EPA 8270E/35112C11-12 Aliphatic hydrocarbons
mg/L SPH3/25/253/24/251EPA 8270E/35111C13-C16 Aliphatic hydrocarbons
mg/L SPH3/25/253/24/251EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L SPH3/25/253/24/251EPA 8270E/35111C22-C35 Aliphatic hydrocarbons
mg/L SPH3/25/253/24/251EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
mg/L SPH3/25/253/24/251EPA 8270E/3511NDTotal C12-C22 PAH
ug/L SPH3/24/253/24/2510EPA 8270E/3511502-Methylnaphthalene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDAcenaphthene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDAcenaphthylene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDAnthracene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDCarbazole
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDChrysene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDDibenzofuran
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDFluoranthene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDFluorene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
Project Name: Fast Stop #1116 CtF WO#: 25C0667
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
3/11/25 8:56 @ 4.3 °C
3/28/2025
Fast Stop #1116
Sample ID: MW-2 (cont.)
Lab ID: 25C0667-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/10/25 14:20
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds (cont.)
ug/L SPH3/24/253/24/2510EPA 8270E/3511203Naphthalene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDNitrobenzene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDPhenanthrene
ug/L SPH3/24/253/24/2510EPA 8270E/3511NDPyrene
Project Name: Fast Stop #1116 CtF WO#: 25C0667
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
3/11/25 8:56 @ 4.3 °C
3/28/2025
Fast Stop #1116
Sample ID: MW-3
Lab ID: 25C0667-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/10/25 13:20
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/18/253/18/250.500 EPA 8260D/5030B9.82Benzene
mg/L 3/18/253/18/250.012 EPA 8260D/5030B1.46Ethylbenzene
mg/L 3/18/253/18/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 3/18/253/18/250.012 EPA 8260D/5030B0.130Naphthalene
mg/L 3/18/253/18/251.25 EPA 8260D/5030B4.24Toluene
mg/L 3/18/253/18/253.75 EPA 8260D/5030B7.49Xylenes, total
Gasoline Range
mg/L 3/18/253/18/253.75 EPA 8260B/C /5030A/[CALC]38.5Gasoline Range Organics
Diesel Range
mg/L 3/14/253/14/251.0 EPA 8015 C2.7Diesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25C0667
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
3/11/25 8:56 @ 4.3 °C
3/28/2025
Fast Stop #1116
Sample ID: MW-4
Lab ID: 25C0667-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/10/25 15:20
Preparation
Date/Time
Sampled By: Sarah Hamilton
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 3/18/253/18/250.500 EPA 8260D/5030B2.61Benzene
mg/L 3/18/253/18/250.012 EPA 8260D/5030B0.547Ethylbenzene
mg/L 3/18/253/18/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 3/18/253/18/250.012 EPA 8260D/5030B0.057Naphthalene
mg/L 3/18/253/18/251.25 EPA 8260D/5030B3.29Toluene
mg/L 3/18/253/18/250.375 EPA 8260D/5030B3.46Xylenes, total
Gasoline Range
mg/L 3/18/253/18/251.25 EPA 8260B/C /5030A/[CALC]24.8Gasoline Range Organics
Diesel Range
mg/L 3/14/253/14/251.0 EPA 8015 C1.5Diesel Range Organics
Project Name: Fast Stop #1116 CtF WO#: 25C0667
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
Broadbent & Associates, Inc.
Sarah Hamilton
8 West Pacific Avenue
Henderson, NV 89015
PO#:
Receipt:
Date Reported:
Project Name:
24-14-110
3/11/25 8:56 @ 4.3 °C
3/28/2025
Fast Stop #1116
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
E = The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate (CLP
E-flag).
SPH = Sample submitted past method specified holding time.
Project Name: Fast Stop #1116 CtF WO#: 25C0667
www.ChemtechFord.com
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