DERR-2025-009079

2410 WEST CALIFORNIA AVENUE • SALT LAKE CITY, UTAH 84104
PHONE [phone]
Website: www.wasatch-environmental.com • e-Mail: [e-mail]
Mr. Mark Bond December 8, 2025
Mountain Crest Wasatch, LLC Project No: 2469-002I
3150 West 900 South
Salt Lake City, Utah 84104

and

Utah Department of Environmental Quality
Division of Environmental Response and Remediation
Voluntary Cleanup Program
Mr. Bill Rees, Section Manager
195 North 1950 West
Salt Lake City, Utah 84114

SUBJECT: Groundwater Monitoring Report
Sommers Auto Wrecking
647 West 3300 South
South Salt Lake, Utah 84119

Wasatch Environmental, Inc., (Wasatch) has completed groundwater monitoring activities at the former
Sommers Auto Wrecking property (Site), located at 647 West 3300 South in South Salt Lake, Utah. See
Figure 1 for a Site Location Map. The monitoring activities were completed to evaluate the residual
petroleum impact to groundwater at the Site and consisted of completing two sampling events. For each
event, groundwater samples were collected from monitoring wells MW-6 and MW-7.

The work was performed in accordance with the approved Quality Assurance Project Plan (QAPP) and
Sampling and Analysis Plan (SAP) documents, dated August 9, 2022, and October 24, 2022,
respectively; and under a Site-specific Health and Safety Plan (HASP).

BACKGROUND

The Site was residential and agricultural until 1956 when the former Sommer Auto Wrecking business
started on the eastern portion of the Site. The wrecking yard expanded to the west between the 1960s
and 1990s. In 2019, Sommers Auto Wrecking vacated the Site. Currently, the Site is occupied by a
landscaping company, but will be occupied by a metals recycling facility in the near future.

In 2012, the Utah Division of Solid and Hazardous Waste (DSHW) recommended the removal of oil-
impacted soil in the area of the dismantling building. Approximately 840 tons of impacted soil were
removed and disposed of off-Site. The excavation reportedly stopped at a clay layer approximately 4 feet
below ground surface (bgs), and confirmation soil samples were not collected. No formal closeout
documentation was created. Given that no confirmation samples were collected, there was potential for
residual impacts in this area.

Total petroleum hydrocarbons as gasoline-range organics (TPH-GRO) and oil and grease (O&G) impacts
to soil and groundwater exceeding Utah Initial Screening Levels (ISLs) and/or Utah Risk -Based
Corrective Action (RBCA) Tier 1 Screening Levels were identified by the DSHW in 2012.
Low concentrations of tetrachloroethene (PCE) were detected in soil and groundwater samples in two
areas, indicating that PCE was either brought onto or used at the Site. There was a potential for elevated
concentrations of PCE to be present in soil and groundwater in other areas of the Site.

Wasatch Environmental Inc.
Page 2
Lead was detected in a waste characterization soil sample at a concentration exceeding the United
States (U.S.) Environmental Protection Agency (EPA) Residential and Commercial Regional Screening
Levels (RSLs), indicating that elevated metals concentrations were likely present at the Site.

There was a drainage system and sump in the former oil storage building that was reportedly not working
and has since been filled with concrete. There was potential for impacts to the subsurface from this
former drainage system.

Given the long-term use of the Site for auto wrecking and evidence of long-term poor housekeeping
practices, there was a potential for impacts to the Site in areas that were not investigated in 2012.

There was a potential for impacts to the Site from releases associated with the long-term use of the east
adjoining Pick-n-Pull property for auto wrecking.

From 2021 through 2023, Wasatch completed three soil and groundwater sampling events that identified
and characterized heavy metals and petroleum hydrocarbon impacts at the Site. During
this time, Wasatch recommended that these impacts be reported to the Utah DEQ. The owner/operator
of the Site reported the release to the Utah DEQ. As of July 22, 2022, the Site has
been entered into the Utah Voluntary Cleanup Program (VCP) for regulatory oversight and has been
assigned VCP Site #C122. The Utah VCP requested that additional Site characterization activities be
completed at the Site, at the time of entry into the VCP, to facilitate the development of a RAP.

The Site was sufficiently characterized and documented in the VCP-approved “Site Characterization
Report – Revised” dated November 2023, which was completed by Wasatch (see this report for full
details). Based on this report, lead and arsenic were detected in soils at concentrations that
exceeded the U.S. EPA RSL for Industrial Soil, and petroleum hydrocarbons were detected in soil
and groundwater at concentrations that exceeded their applicable Utah Initial Screening Level, U.S.
EPA RSL for Industrial Soil, U.S. EPA MCL, and/or the calculated Site-Specific Cleanup Levels
(SSCLs) calculated using the Utah DERR-approved DERR RBCA SSCL calculator. Four impacted areas
were identified by Wasatch and recommended for active remediation.

Given the totality of the Site characterization data, Wasatch submitted a RAP to the VCP which was
approved in a letter from the VCP dated January 30, 2024. In the RAP, an arsenic in soil cleanup
goal of 45 mg/kg was requested by Wasatch and accepted by the VCP.

Given the totality of the volatile organic compound (VOC) and petroleum hydrocarbon data, it does not
appear that these impacts are migrating off-Site. This is likely due to the clay lithology of the Site.

In 2024, Wasatch completed four excavations at the Site that removed the heavy metal impacts and
petroleum hydrocarbon impacts to soil to concentrations below the VCP-approved cleanup goals,
except for one western sidewall sample within excavation 4 (EXC-4, the petroleum hydrocarbon
excavation). EXC-4 was extended to the west to the property boundary where numerous
underground utilities were present restricting additional soil removal in this area. Additionally,
groundwater was extracted from EXC-4, treated on-Site, and discharged to the storm sewer under a
Division of Water Quality permit to remediate groundwater petroleum hydrocarbon impacts in that
area.

The VCP requested that an Environmental Covenant (EC) and Site Management Plan (SMP), along with
a Blue Stakes Notice, be submitted to them for their approval to mitigate residual impact exposures at the
Site to facilitate the regulatory closure of these impacts. Additionally, the VCP requested that
groundwater monitoring activities be completed to verify that significant analyte rebound has not occurred
at the Site after the completion of the groundwater remediation activities.

Wasatch Environmental Inc.
Page 3
OBJECTIVES

The objective of the work was to collect groundwater data from two groundwater monitoring wells to
evaluate if the groundwater remedial activities have been successful and evaluate if significant
contaminant rebound has occurred.

FIELD METHODOLOGY

See Appendix A for a photolog of applicable field activities.

Groundwater Monitoring and Waste Disposal

Wasatch completed two groundwater monitoring events, one on May 6, 2025, and one on August 5,
2025, using standard purge sampling procedures. Groundwater samples were only collected from
groundwater monitoring wells MW-6 and MW-7, and depth to groundwater measurements were planned
to be collected from groundwater monitoring wells MW-1 through MW-7. See Figure 2 for monitoring well
locations.

The current occupants of the Site covered monitoring wells MW-2, MW-3, and MW-4 with landscaping
materials for one or both sampling events. Additionally, monitoring well MW-1 was located behind a
locked gate that we could not access during the August 5, 2025, sampling event. Therefore, depth to
water measurements were either not collected from these wells, or only collected during one sampling
event. Given this, there were not sufficient groundwater elevation data collected from the Site during the
August 5, 2025, sampling event to complete a representative potentiometric surface map. Therefore,
only the groundwater elevation data from the May 6, 2025, sampling event w ere used to calculate the
general groundwater flow direction and hydraulic gradient at the Site. The hydraulic gradient was
calculated as a 3-point problem using monitoring wells MW-1, MW-5, and MW-7. See Figure 3 for a map
of the potentiometric surface at the Site.

Groundwater samples were collected in accordance with the SAP using standard purge sampling
procedures and purged of at least three casing volumes prior to collecting the samples. After the required
purge volume was achieved, the groundwater samples were dispensed into 40 to 80-milliliter capacity
glass vials with Teflon® septa caps. The vials, which were supplied by the analytical laboratory, contained
several drops of hydrochloric acid as a preservative. The vials were filled slowly until a meniscus formed
at the top of each vial, then each vial was sealed with a septa cap. This procedure eliminated headspace
within the vials and minimized the loss of volatiles. The sample vials were labeled with the analysis
required, sampler’s name, sample identification number, sample location, date, and time of sample
collection. The samples were placed in a cooler with ice and transported under chain-of-custody protocol
to Chemtech-Ford Laboratories (CF) for analysis of TPH-GRO, TPH-GRO fractionation, and methyl-
tertiary-butyl ether, benzene, toluene, ethylbenzene, xylene, and naphthalene (MBTEXN) using U.S. EPA
Method 8260D, total petroleum hydrocarbons as diesel-range (TPH-DRO) with silica gel treatment (SGT)
using U.S. EPA Method 8015D-SGT, TPH-DRO fractionation using U.S. EPA Method 8270E. Wasatch
requested quality control (QC) level III for all samples. Groundwater samples were analyzed on standard
laboratory turnaround time.

Blind field duplicates, matrix spike/matrix spike duplicates, equipment blanks, and trip blanks w ere
collected per Table 2 of the QAPP and submitted for laboratory analysis for each groundwater monitoring
event. The resulting laboratory data was subject to third-party data validation discussed below.

Wasatch generated a small quantity of waste groundwater during the groundwater monitoring activities.
Purge water generated during groundwater monitoring activities was contained in properly labeled 55-
gallon drums and stored on-Site in an out-of-sight location. Given that all groundwater detections were
below their applicable Utah ISLs, this water was disposed on the ground surface near the monitoring
wells the purged water originated.

Wasatch Environmental Inc.
Page 4
FIELD OBSERVATIONS AND LABORATORY ANALYTICAL RESULTS

Groundwater Monitoring and Waste Disposal

Based on the groundwater elevation data, the general groundwater flow direction is to the nor thwest at
0.009 feet/foot. Since the last groundwater gradient was calculated (showing a northwest flow direction),
the groundwater gradient is slightly more northerly than previously calculated. However, the overall
change in flow direction is minimal. Given the placement of the wells in the former source area and
hydraulically downgradient of the source area, the w ells monitored to evaluate potential rebound (MW-6
and MW-7) appear to still be located in acceptable locations to complete this evaluation as MW-7 is still
located in a hydraulically downgradient position from MW-6.

Analyte concentrations in groundwater were compared to the U.S. EPA MCLs, Utah ISLs, and SSCLs
(where applicable). Sample locations are shown in Figure 2. Groundwater analytical data for VOCs and
petroleum hydrocarbons are summarized in Table 1. The laboratory analytical report and chain-of-
custody documentation are presented in Appendix B.

No analytes were detected at concentrations that exceed their applicable screening levels.

QUALITY ASSURANCE/QUALITY CONTROL (QA/QC)

QA/QC checks were performed for both field sampling and laboratory analysis of the environmental
samples to allow for the evaluation of data quality, documentation of data quality, and to help identify
irregularities in the field sampling or laboratory analyses that may require correction.

QA/QC Summary

QA/QC samples were collected as specified in the approved QAPP.

Precision (Field and Laboratory Data Precision)

As determined by the third-party data validator, the overall field/laboratory precision for this project is
100%; therefore, the precision is considered to be acceptable and under control.

Accuracy (Field and Laboratory Data Accuracy)

As determined by the third-party data validator, the overall field/laboratory accuracy for this project is
89.0%; therefore, the accuracy is considered to be acceptable and under control.

Representativeness (Field and Laboratory Data Representativeness)

Field: For this project, the environmental samples were collected from locations that are located in areas
to properly evaluate if groundwater contamination rebound might occur.

Laboratory: For this project, method blanks were free of target analytes, sample holding times were not
exceeded, all samples were properly preserved, and receiving temperatures were not exceeded;
therefore, representativeness for the project is considered acceptable and under control.

Completeness (Field and Laboratory Data Completeness)

100% of the collected samples were deemed valid based on independent data validation. The
completeness for the project is considered acceptable and under control.

Wasatch Environmental Inc.
Page 5
Comparability (Field and Laboratory Data Comparability)

Comparability for the project is considered acceptable and under control.

Sensitivity

Laboratory detection limits were less than the regulatory screening levels; therefore, sensitivity for the
project is considered acceptable and under control.

The data validation report completed by an independent third-party (AQS, Inc.) is presented as Appendix
C for detailed review. Based on the independent third-party data validation, all data are considered to be
valid.

CONCLUSIONS AND RECOMMENDATIONS

Wasatch successfully completed two groundwater monitoring events at the Site. Several monitoring wells
were not accessible for depth to groundwater measurements. However, this did not limit the objectives of
this work. Based on the independent third-party data validation, all data are valid.

All analytes detected in groundwater exhibited concentrations below their applicable Utah ISLs and
SSCLs. Given the groundwater data, it is Wasatch’s opinion that the groundwater remediation efforts
were effective, significant rebound of petroleum hydrocarbons in groundwater has not occurred, and
significant rebound is likely not to occur. Therefore, Wasatch requests that no additional groundwater
monitoring be required, and that a Site Management Plan and Environmental Covenant be completed for
the Site to facilitate regulatory closure of the releases at the Site as stated in the DERR-approved RAP.

Should you have any questions, please contact us.

Sincerely,
WASATCH ENVIRONMENTAL, INC.

Blake Downey, P.G.
Vice President and Senior Project Hydrogeologist

FIGURES
Figure 1 – Site Location Map
Figure 2 – Monitoring Well Location Map
Figure 3 – May 6, 2025, Piezometric Surface Map

TABLE
Table 1 – Groundwater Analytical Data - Volatile Organic Compounds and Petroleum Hydrocarbons

APPENDICES
Appendix A – Photolog
Appendix B – Laboratory Analytical Reports
Appendix C – Data Validation Report

Distribution: (1) Mr. Lincoln Grevengoed – DERR, VCP Section
(1) Mr. Devan Knight – Vice President

Figures

The use or reuse of this information is restricted to the referenced document unless otherwise authorized.
Wasatch Environmental Copyright 2006
FORMER SOMMERS AUTO WRECKING WEI 2469-002I
Figure 1 Site Location Map
Approximate
Location of Site
1 inch is equal
to 840 feet
The use or reuse of this information is restricted to the referenced document unless otherwise authorized.
Wasatch Environmental Copyright 2006
Figure 2Monitoring Well Location Map
FORMER SOMMERS AUTO WRECKING WEI 2469-002I
1 inch is equal
to 50 feet
3300 South
Monitoring Well Location
MW-2
MW-3
MW-4
MW-5
MW-1
70
0

W
es
t
MW-6
MW-7
Approximate Site Boundary
The use or reuse of this information is restricted to the referenced document unless otherwise authorized.
Wasatch Environmental Copyright 2006
Figure 3May 6, 2025, Piezometric Surface Map
SOMMERS AUTO WRECKING WEI 2469-002I
1 inch is equal
to 50 feet
3300 South
70
0

W
es
t
Monitoring Well Location
MW-2
(93.90)
MW-3
(Not Measured)
MW-4
(Note Measured)
MW-5
(95.91)
MW-1
(91.73)
92.6
94.1
93.6
93.192.1
Piezometric Surface Contour
Approximate Site Boundary
MW-6
(95.58)
MW-7
(93.40)
94.6
95.1
95.6
Ge
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Table

GP-1 ---------9/10/21 <5.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 NA <2.00 <20.0 NA NA NA NA NA NA
GP-2 ---------
14,200 457 2,910 92.3 <20.0 320 609 2,020 10,700 NA 888 39,700 11,800 NA NA NA NA NA
55.9 <20.0 <20.0 <20.00 24.7 <20.0 52.4 <20.0 <20.0 NA <20.0 <200 NA NA NA NA NA NA
116 32.6 16.0 14.5 18.5 40.4 92.1 3.79 83.7 NA 2.23 1,020 NA NA NA NA NA NA
2,670 NA 119 NA 183 NA 501 NA NA 232 130 7,860 715,000 NA NA NA NA NA
72 NA 25.8 NA 17.3 NA 8.47 NA NA 184 41.1 620 8,680 NA NA NA NA NA
37.9 NA 12.4 NA 19.2 NA 2.25 NA NA 94 44.1 233 2,400 NA NA NA NA NA
8 NA <12 NA <8 NA <12 NA NA 115 14 345 <1,000 NA NA NA NA NA
8 NA <12 NA <8 NA <12 NA NA 118 14 351 <1,000 NA NA NA NA NA
1,780 1,400 NA 0.142 0.139 <0.125 NA
1,730 1,200 NA 0.131 0.147 1.19 NA
MW-2 97.48 3.58 93.90 5/6/2025 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-3 97.98 **5/6/2025 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-4 96.86 **5/6/2025 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-5 100.00 4.09 95.91 5/6/2025 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-6 96.69 1.11 95.58 5/6/2025 NA <1 NA <2 NA 2 NA <2 NA NA <8 <2 <25.0 <1,000 NA <25 <25
MW-7 97.54 4.14 93.40 5/6/2025 NA <1 NA <2 NA 5 NA <2 NA NA <8 <2 <25 <1,000 NA <25 25
NOTES:
Only analytes detected in one or more samples at concentrations above the laboratory reporting limit are presented.
BOLD = Measured concentration exceeds the applicable Utah Initial Screening Level.
Groundwater Sampling 2023
Grounwater Sampling 2024
Groundwater Analytical Data - Volatile Organic Compounds and Petroleum Hydrocarbons
Table 1
**Outdoor Air Vapor Inhalation Calculated SSCLs
all concentrations are expressed in micrograms per liter (µg/L)
South Salt Lake, Utah
647 West 3300 South
Former Sommers Auto Wrecking
Sample I.D.
Top-of-
Casing
Elevation
Depth to
Water
(feet)
Elevation
(feet)
Sample
Collection
Date
Volatile Organic Compounds Petroleum Hydrocarbons
Et
h
e
r

Appendix A
Photolog

Photo 1. Typically sampling of MW-6.Photo 2. Typical sampling of MW-7.
Photo 3. Typical sampling containers.Photo 4. Drum storage of purge water.

Appendix B
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
Wasatch Environmental
Attn: Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
Work Order: 25E0391
Project: Sommers Auto
5/14/2025
Approved By:
Melissa Connolly, 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 20
_____________________________________________________________________________________________
Wasatch Environmental
Project: Sommers Auto
Project Manager: Blake Downey
Laboratory ID Sample Name
25E0391-01 MW-6
25E0391-02 EB-1
25E0391-03 MW-7
25E0391-04 MW-77
25E0391-05 Trip Blank
______________________________________________________________________________________________
Work Order Report Narrative
Sample Preparation
All samples were prepared within method specified holding times. No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags.
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
There are no corrective actions associated with this work order.
www.ChemtechFord.com
Project Name: Sommers Auto CtF WO#: 25E0391
Page 2 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: MW-6
Lab ID: 25E0391-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:00
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/7/255/7/250.001 EPA 8260D/5030BNDBenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDEthylbenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030B0.002Methyl-tert-butyl ether (MTBE)
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDNaphthalene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDToluene
mg/L 5/7/255/7/250.008 EPA 8260D/5030BNDXylenes, total
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 5/7/255/7/250.0250 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/8/255/8/251.0 EPA 8015 CNDDiesel Range Organics
Semi-Volatile Compounds
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/35111C22-C35 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
mg/L 5/9/255/8/251EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 5/8/255/8/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAcenaphthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAcenaphthylene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAnthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDCarbazole
ug/L 5/8/255/8/2510EPA 8270E/3511NDChrysene
ug/L 5/8/255/8/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDDibenzofuran
ug/L 5/8/255/8/2510EPA 8270E/3511NDFluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDFluorene
ug/L 5/8/255/8/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 3 of 20Page 3 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: MW-6 (cont.)
Lab ID: 25E0391-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:00
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds (cont.)
ug/L 5/8/255/8/2510EPA 8270E/3511NDNaphthalene
ug/L 5/8/255/8/2510EPA 8270E/3511NDNitrobenzene
ug/L 5/8/255/8/2510EPA 8270E/3511NDPhenanthrene
ug/L 5/8/255/8/2510EPA 8270E/3511NDPyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 4 of 20Page 4 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: EB-1
Lab ID: 25E0391-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:20
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/7/255/7/250.001 EPA 8260D/5030BNDBenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDEthylbenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDNaphthalene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDToluene
mg/L 5/7/255/7/250.008 EPA 8260D/5030BNDXylenes, total
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 5/7/255/7/250.0250 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/8/255/8/251.0 EPA 8015 CNDDiesel Range Organics
Semi-Volatile Compounds
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC22-C35 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
mg/L 5/9/255/8/251EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 5/8/255/8/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAcenaphthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAcenaphthylene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAnthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDCarbazole
ug/L 5/8/255/8/2510EPA 8270E/3511NDChrysene
ug/L 5/8/255/8/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDDibenzofuran
ug/L 5/8/255/8/2510EPA 8270E/3511NDFluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDFluorene
ug/L 5/8/255/8/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 5 of 20Page 5 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: EB-1 (cont.)
Lab ID: 25E0391-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:20
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds (cont.)
ug/L 5/8/255/8/2510EPA 8270E/3511NDNaphthalene
ug/L 5/8/255/8/2510EPA 8270E/3511NDNitrobenzene
ug/L 5/8/255/8/2510EPA 8270E/3511NDPhenanthrene
ug/L 5/8/255/8/2510EPA 8270E/3511NDPyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 6 of 20Page 6 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: MW-7
Lab ID: 25E0391-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:50
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/7/255/7/250.001 EPA 8260D/5030BNDBenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDEthylbenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030B0.005Methyl-tert-butyl ether (MTBE)
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDNaphthalene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDToluene
mg/L 5/7/255/7/250.008 EPA 8260D/5030BNDXylenes, total
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030B0.025C7-C8 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 5/7/255/7/250.0250 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/8/255/8/251.0 EPA 8015 CNDDiesel Range Organics
Semi-Volatile Compounds
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/35111C22-C35 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
mg/L 5/9/255/8/251EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 5/8/255/8/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAcenaphthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAcenaphthylene
ug/L 5/8/255/8/2510EPA 8270E/3511NDAnthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 5/8/255/8/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDCarbazole
ug/L 5/8/255/8/2510EPA 8270E/3511NDChrysene
ug/L 5/8/255/8/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 5/8/255/8/2510EPA 8270E/3511NDDibenzofuran
ug/L 5/8/255/8/2510EPA 8270E/3511NDFluoranthene
ug/L 5/8/255/8/2510EPA 8270E/3511NDFluorene
ug/L 5/8/255/8/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 7 of 20Page 7 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: MW-7 (cont.)
Lab ID: 25E0391-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:50
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds (cont.)
ug/L 5/8/255/8/2510EPA 8270E/3511NDNaphthalene
ug/L 5/8/255/8/2510EPA 8270E/3511NDNitrobenzene
ug/L 5/8/255/8/2510EPA 8270E/3511NDPhenanthrene
ug/L 5/8/255/8/2510EPA 8270E/3511NDPyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 8 of 20Page 8 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: MW-77
Lab ID: 25E0391-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:55
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/7/255/7/250.001 EPA 8260D/5030BNDBenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDEthylbenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030B0.006Methyl-tert-butyl ether (MTBE)
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDNaphthalene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDToluene
mg/L 5/7/255/7/250.008 EPA 8260D/5030BNDXylenes, total
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 5/7/255/7/250.0250 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/8/255/8/251.0 EPA 8015 CNDDiesel Range Organics
Semi-Volatile Compounds
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC22-C35 Aliphatic hydrocarbons
mg/L 5/9/255/8/251EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
mg/L 5/9/255/8/251EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 5/9/255/8/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 5/9/255/8/2510EPA 8270E/3511NDAcenaphthene
ug/L 5/9/255/8/2510EPA 8270E/3511NDAcenaphthylene
ug/L 5/9/255/8/2510EPA 8270E/3511NDAnthracene
ug/L 5/9/255/8/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 5/9/255/8/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 5/9/255/8/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 5/9/255/8/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 5/9/255/8/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 5/9/255/8/2510EPA 8270E/3511NDCarbazole
ug/L 5/9/255/8/2510EPA 8270E/3511NDChrysene
ug/L 5/9/255/8/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 5/9/255/8/2510EPA 8270E/3511NDDibenzofuran
ug/L 5/9/255/8/2510EPA 8270E/3511NDFluoranthene
ug/L 5/9/255/8/2510EPA 8270E/3511NDFluorene
ug/L 5/9/255/8/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 9 of 20Page 9 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: MW-77 (cont.)
Lab ID: 25E0391-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 15:55
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds (cont.)
ug/L 5/9/255/8/2510EPA 8270E/3511NDNaphthalene
ug/L 5/9/255/8/2510EPA 8270E/3511NDNitrobenzene
ug/L 5/9/255/8/2510EPA 8270E/3511NDPhenanthrene
ug/L 5/9/255/8/2510EPA 8270E/3511NDPyrene
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 10 of 20Page 10 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
Sample ID: Trip Blank
Lab ID: 25E0391-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/6/25 0:00
Preparation
Date/Time
Sampled By: Ryan Panasy
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/7/255/7/250.001 EPA 8260D/5030BNDBenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDEthylbenzene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDNaphthalene
mg/L 5/7/255/7/250.002 EPA 8260D/5030BNDToluene
mg/L 5/7/255/7/250.008 EPA 8260D/5030BNDXylenes, total
mg/L 5/7/255/7/250.025 EPA 8260D/5030BNDGasoline Range Organics
Project Name: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 11 of 20Page 11 of 20
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469
5/6/25 16:45 @ 10.7 °C
5/14/2025
Sommers Auto
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: Sommers Auto CtF WO#: 25E0391
www.ChemtechFord.com
Page 12 of 20Page 12 of 20
Page 13 of 20
QC Report for Work Order (WO) - 25E0391
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8015 C
QC Sample ID: BZE0362-BLK1 Batch: BZE0362
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 mg/LUnits:
Diesel Range Organics ND 1.0 1.00
LCS - EPA 8015 C
QC Sample ID: BZE0362-BS1 Batch: BZE0362
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 mg/LUnits:
Diesel Range Organics 124 50 - 150 50 40.0 1.0 1.00
Matrix Spike - EPA 8015 C
QC Sample ID: BZE0362-MS1 QC Source Sample: 25E0391-01Batch: BZE0362
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 mg/LUnits:
Diesel Range Organics 116 50 - 150 46 ND 40.0 1.0 1.00
Matrix Spike Dup - EPA 8015 C
QC Sample ID: BZE0362-MSD1 QC Source Sample: 25E0391-01Batch: BZE0362
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 mg/LUnits:
Diesel Range Organics 119 2.68 50 - 150 20 48 ND 40.0 1.0 1.00
CtF WO#: 25E0391
www.ChemtechFord.com Page 14 of 20
QC Report for Work Order (WO) - 25E0391
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8260D
QC Sample ID: BZE0301-BLK1 Batch: BZE0301
Date Prepared: 05/07/2025 Date Analyzed: 05/07/2025 mg/LUnits:
Benzene ND 0.0004 1.00
Ethylbenzene ND 0.001 1.00
Methyl-tert-butyl ether (MTBE)ND 0.0006 1.00
Naphthalene ND 0.001 1.00
Toluene ND 0.001 1.00
Xylenes, total ND 0.003 1.00
LCS - EPA 8260D
QC Sample ID: BZE0301-BS1 Batch: BZE0301
Date Prepared: 05/07/2025 Date Analyzed: 05/07/2025 mg/LUnits:
Benzene 120 70 - 130 0.012 0.0100 0.0004 1.00
Ethylbenzene 119 70 - 130 0.012 0.0100 0.001 1.00
Methyl-tert-butyl ether (MTBE)97.0 70 - 130 0.010 0.0100 0.0006 1.00
Naphthalene 94.2 70 - 130 0.009 0.0100 0.001 1.00
Toluene 117 70 - 130 0.012 0.0100 0.001 1.00
Xylenes, total 117 70 - 130 0.035 0.0300 0.003 1.00
Matrix Spike - EPA 8260D
QC Sample ID: BZE0301-MS1 QC Source Sample: 25E0391-01Batch: BZE0301
Date Prepared: 05/07/2025 Date Analyzed: 05/07/2025 mg/LUnits:
Benzene 85.0 70 - 130 0.021 ND 0.0250 0.001 1.00
Ethylbenzene 85.9 70 - 130 0.021 ND 0.0250 0.002 1.00
Methyl-tert-butyl ether (MTBE)83.8 70 - 130 0.023 0.002 0.0250 0.002 1.00
Naphthalene 73.0 70 - 130 0.018 ND 0.0250 0.002 1.00
Toluene 89.6 70 - 130 0.022 ND 0.0250 0.002 1.00
Xylenes, total 85.8 70 - 130 0.064 ND 0.0750 0.008 1.00
Matrix Spike Dup - EPA 8260D
QC Sample ID: BZE0301-MSD1 QC Source Sample: 25E0391-01Batch: BZE0301
Date Prepared: 05/07/2025 Date Analyzed: 05/07/2025 mg/LUnits:
Benzene 89.1 4.71 70 - 130 20 0.022 ND 0.0250 0.001 1.00
Ethylbenzene 86.1 0.233 70 - 130 25 0.022 ND 0.0250 0.002 1.00
Methyl-tert-butyl ether (MTBE)91.3 7.77 70 - 130 20 0.025 0.002 0.0250 0.002 1.00
Naphthalene 82.5 12.2 70 - 130 25 0.021 ND 0.0250 0.002 1.00
Toluene 86.0 4.10 70 - 130 20 0.022 ND 0.0250 0.002 1.00
Xylenes, total 86.3 0.581 70 - 130 20 0.065 ND 0.0750 0.008 1.00
CtF WO#: 25E0391
www.ChemtechFord.com Page 15 of 20
QC Report for Work Order (WO) - 25E0391
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8270E
QC Sample ID: BZE0401-BLK1 Batch: BZE0401
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 ug/LUnits:
2-Methylnaphthalene ND 10 1.00
Acenaphthene ND 10 1.00
Acenaphthylene ND 10 1.00
Anthracene ND 10 1.00
Benzo (a) anthracene ND 10 1.00
Benzo (a) pyrene ND 10 1.00
Benzo (b) fluoranthene ND 10 1.00
Benzo (g,h,i) perylene ND 10 1.00
Benzo (k) fluoranthene ND 10 1.00
C11-12 Aliphatic hydrocarbons ND 1 1.00
C11-C13 Alkyl Naphthalenes ND 1 1.00
C13-C16 Aliphatic hydrocarbons ND 1 1.00
C17-C21 Aliphatic hydrocarbons ND 1 1.00
C22-C35 Aliphatic hydrocarbons ND 1 1.00
Carbazole ND 10 1.00
Chrysene ND 10 1.00
Dibenz (a,h) anthracene ND 10 1.00
Dibenzofuran ND 10 1.00
Fluoranthene ND 10 1.00
Fluorene ND 10 1.00
Indeno (1,2,3-cd) pyrene ND 10 1.00
Naphthalene ND 10 1.00
Nitrobenzene ND 10 1.00
Phenanthrene ND 10 1.00
Pyrene ND 10 1.00
Total C12-C22 PAH ND 1 1.00
LCS - EPA 8270E
QC Sample ID: BZE0401-BS1 Batch: BZE0401
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 ug/LUnits:
2-Methylnaphthalene 62.7 50 - 150 31 50.0 10 1.00
Acenaphthene 76.0 47 - 145 38 50.0 10 1.00
Acenaphthylene 79.0 50 - 150 39 50.0 10 1.00
Anthracene 85.4 50 - 150 43 50.0 10 1.00
Benzo (a) anthracene 87.7 50 - 150 44 50.0 10 1.00
Benzo (a) pyrene 78.3 50 - 150 39 50.0 10 1.00
Benzo (b) fluoranthene 84.9 50 - 150 42 50.0 10 1.00
Benzo (g,h,i) perylene 93.8 50 - 150 47 50.0 10 1.00
Benzo (k) fluoranthene 82.8 50 - 150 41 50.0 10 1.00
Carbazole 95.7 50 - 150 48 50.0 10 1.00
Chrysene 86.8 50 - 150 43 50.0 10 1.00
Dibenz (a,h) anthracene 81.7 50 - 150 41 50.0 10 1.00
Dibenzofuran 80.1 50 - 150 40 50.0 10 1.00
Fluoranthene 93.4 50 - 150 47 50.0 10 1.00
Fluorene 83.8 50 - 150 42 50.0 10 1.00
Indeno (1,2,3-cd) pyrene 81.9 50 - 150 41 50.0 10 1.00
Naphthalene 68.6 50 - 150 34 50.0 10 1.00
Nitrobenzene 104 50 - 150 52 50.0 10 1.00
Phenanthrene 85.1 50 - 150 43 50.0 10 1.00
Pyrene 88.2 33 - 125 44 50.0 10 1.00
Matrix Spike - EPA 8270E
CtF WO#: 25E0391
www.ChemtechFord.com Page 16 of 20
QC Report for Work Order (WO) - 25E0391
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Matrix Spike - EPA 8270E (cont.)
QC Sample ID: BZE0401-MS1 QC Source Sample: 25E0391-01Batch: BZE0401
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 ug/LUnits:
2-Methylnaphthalene 73.5 50 - 150 37 ND 50.0 10 1.00
Acenaphthene 81.1 50 - 150 41 ND 50.0 10 1.00
Acenaphthylene 83.9 50 - 150 42 ND 50.0 10 1.00
Anthracene 86.4 50 - 150 43 ND 50.0 10 1.00
Benzo (a) anthracene 87.2 50 - 150 44 ND 50.0 10 1.00
Benzo (a) pyrene 78.2 50 - 150 39 ND 50.0 10 1.00
Benzo (b) fluoranthene 84.0 50 - 150 42 ND 50.0 10 1.00
Benzo (g,h,i) perylene 92.5 50 - 150 46 ND 50.0 10 1.00
Benzo (k) fluoranthene 94.4 50 - 150 47 ND 50.0 10 1.00
Carbazole 93.1 50 - 150 47 ND 50.0 10 1.00
Chrysene 87.2 50 - 150 44 ND 50.0 10 1.00
Dibenz (a,h) anthracene 81.3 50 - 150 41 ND 50.0 10 1.00
Dibenzofuran 83.9 50 - 150 42 ND 50.0 10 1.00
Fluoranthene 92.7 50 - 150 46 ND 50.0 10 1.00
Fluorene 85.3 50 - 150 43 ND 50.0 10 1.00
Indeno (1,2,3-cd) pyrene 81.2 50 - 150 41 ND 50.0 10 1.00
Naphthalene 76.6 50 - 150 38 ND 50.0 10 1.00
Nitrobenzene 106 50 - 150 53 ND 50.0 10 1.00
Phenanthrene 85.1 50 - 150 43 ND 50.0 10 1.00
Pyrene 88.8 50 - 150 44 ND 50.0 10 1.00
Matrix Spike Dup - EPA 8270E
QC Sample ID: BZE0401-MSD1 QC Source Sample: 25E0391-01Batch: BZE0401
Date Prepared: 05/08/2025 Date Analyzed: 05/08/2025 ug/LUnits:
2-Methylnaphthalene 74.8 1.74 50 - 150 30 37 ND 50.0 10 1.00
Acenaphthene 82.1 1.27 50 - 150 30 41 ND 50.0 10 1.00
Acenaphthylene 84.2 0.359 50 - 150 30 42 ND 50.0 10 1.00
Anthracene 89.7 3.79 50 - 150 30 45 ND 50.0 10 1.00
Benzo (a) anthracene 89.0 1.99 50 - 150 30 44 ND 50.0 10 1.00
Benzo (a) pyrene 79.1 1.15 50 - 150 30 40 ND 50.0 10 1.00
Benzo (b) fluoranthene 89.3 6.12 50 - 150 30 45 ND 50.0 10 1.00
Benzo (g,h,i) perylene 97.4 5.18 50 - 150 30 49 ND 50.0 10 1.00
Benzo (k) fluoranthene 86.3 9.02 50 - 150 30 43 ND 50.0 10 1.00
Carbazole 93.3 0.193 50 - 150 30 47 ND 50.0 10 1.00
Chrysene 91.8 5.15 50 - 150 30 46 ND 50.0 10 1.00
Dibenz (a,h) anthracene 84.0 3.33 50 - 150 20 42 ND 50.0 10 1.00
Dibenzofuran 86.5 2.97 50 - 150 30 43 ND 50.0 10 1.00
Fluoranthene 94.0 1.33 50 - 150 30 47 ND 50.0 10 1.00
Fluorene 89.8 5.20 50 - 150 30 45 ND 50.0 10 1.00
Indeno (1,2,3-cd) pyrene 84.0 3.36 50 - 150 30 42 ND 50.0 10 1.00
Naphthalene 76.0 0.870 50 - 150 30 38 ND 50.0 10 1.00
Nitrobenzene 108 1.39 50 - 150 30 54 ND 50.0 10 1.00
Phenanthrene 89.8 5.39 50 - 150 30 45 ND 50.0 10 1.00
Pyrene 93.9 5.65 50 - 150 30 47 ND 50.0 10 1.00
CtF WO#: 25E0391
www.ChemtechFord.com Page 17 of 20
Surrogates Report for Work Order (WO) - 25E0391
Spk ValueResultUCL DF BatchLCL% RecAnalyteQC ID
Blank - EPA 8015 C
BZE0362-BLK1 Bromofluorobenzene 99.0 50 BZE0362 1.001503.96 4.00
LCS - EPA 8015 C
BZE0362-BS1 Bromofluorobenzene 121 50 BZE0362 1.001504.82 4.00
Matrix Spike - EPA 8015 C
BZE0362-MS1 Bromofluorobenzene 115 50 BZE0362 1.001504.59 4.00
Matrix Spike Dup - EPA 8015 C
BZE0362-MSD1 Bromofluorobenzene 117 50 BZE0362 1.001504.67 4.00
Blank - EPA 8260D
BZE0301-BLK1 Toluene-d8 104 83.3 BZE0301 1.001220.0104 0.0100
LCS - EPA 8260D
BZE0301-BS1 Toluene-d8 103 83.3 BZE0301 1.001220.0103 0.0100
Matrix Spike - EPA 8260D
BZE0301-MS1 Toluene-d8 104 83.3 BZE0301 1.001220.0261 0.0250
Matrix Spike Dup - EPA 8260D
BZE0301-MSD1 Toluene-d8 104 83.3 BZE0301 1.001220.0259 0.0250
BZE0401-LBK1 2-Fluorophenol 77.5 10 BZE0401 1.00117194 250
BZE0401-LBK1 Phenol-d5 48.0 10 BZE0401 1.0090.1 120 250
BZE0401-LBK1 Nitrobenzene-d5 133 25 BZE0401 1.00189 166 125
BZE0401-LBK1 2-Fluorobiphenyl 65.1 16 BZE0401 1.0015281.3 125
BZE0401-LBK1 2,4,6-Tribromophenol 119 10 BZE0401 1.00180 298 250
BZE0401-LBK1 Terphenyl-dl4 115 41 BZE0401 1.00174 144 125
Blank - EPA 8270E
BZE0401-BLK1 2-Fluorophenol 77.6 10 BZE0401 1.00117194 250
BZE0401-BLK1 Phenol-d5 50.5 10 BZE0401 1.0090.1 126 250
BZE0401-BLK1 Nitrobenzene-d5 132 25 BZE0401 1.00189 165 125
BZE0401-BLK1 2-Fluorobiphenyl 16 BZE0401 1.001520.00 0.125
BZE0401-BLK1 2-Fluorobiphenyl 55.8 16 BZE0401 1.0015269.7 125
BZE0401-BLK1 2,4,6-Tribromophenol 109 10 BZE0401 1.00180 273 250
BZE0401-BLK1 Terphenyl-dl4 41 BZE0401 1.001740.00 0.125
BZE0401-BLK1 Terphenyl-dl4 118 41 BZE0401 1.00174 147 125
LCS - EPA 8270E
BZE0401-BS1 2-Fluorophenol 75.0 10 BZE0401 1.00117188 250
BZE0401-BS1 Phenol-d5 46.9 10 BZE0401 1.0090.1 117 250
BZE0401-BS1 Nitrobenzene-d5 118 25 BZE0401 1.00189 147 125
BZE0401-BS1 2-Fluorobiphenyl 62.5 16 BZE0401 1.0015278.1 125
BZE0401-BS1 2,4,6-Tribromophenol 122 10 BZE0401 1.00180 304 250
BZE0401-BS1 Terphenyl-dl4 105 41 BZE0401 1.00174 132 125
Matrix Spike - EPA 8270E
BZE0401-MS1 2-Fluorophenol 54.3 10 BZE0401 1.00117136 250
BZE0401-MS1 Phenol-d5 36.5 10 BZE0401 1.0090.1 91.2 250
BZE0401-MS1 Nitrobenzene-d5 124 25 BZE0401 1.00189 155 125
BZE0401-MS1 2-Fluorobiphenyl 81.1 16 BZE0401 1.00152 101 125
BZE0401-MS1 2,4,6-Tribromophenol 82.0 10 BZE0401 1.00180 205 250
BZE0401-MS1 Terphenyl-dl4 105 41 BZE0401 1.00174 131 125
Matrix Spike Dup - EPA 8270E
BZE0401-MSD1 2-Fluorophenol 66.0 10 BZE0401 1.00117165 250
BZE0401-MSD1 Phenol-d5 43.7 10 BZE0401 1.0090.1 109 250
BZE0401-MSD1 Nitrobenzene-d5 126 25 BZE0401 1.00189 157 125
BZE0401-MSD1 2-Fluorobiphenyl 76.1 16 BZE0401 1.0015295.1 125
CtF WO#: 25E0391
www.ChemtechFord.com Page 18 of 20
Matrix Spike Dup - EPA 8270E (cont.)
BZE0401-MSD1 2,4,6-Tribromophenol 85.9 10 BZE0401 1.00180 215 250
BZE0401-MSD1 Terphenyl-dl4 112 41 BZE0401 1.00174 140 125
CtF WO#: 25E0391
www.ChemtechFord.com Page 19 of 20
UCLLCL%RecResultAnalyteLabNumber
Surrogate Recoveries (Field Samples)
SpkLvl Qualifier
8270 PAH
25E0391-01 2-Fluorobiphenyl 75.5 60.4 16 152125
25E0391-01 2-Fluorophenol 105 42.2 10 117250
25E0391-01 Nitrobenzene-d5 169 135 25 189125
25E0391-01 Phenol-d5 62.2 24.9 10 90.1250
25E0391-01 Terphenyl-dl4 127 101 41 174125
25E0391-01 2,4,6-Tribromophenol 225 89.9 10 180250
DRO
25E0391-01 Bromofluorobenzene 4.10 102 50 1504.00
MBTEXN-GRO
25E0391-01 Toluene-d8 0.0252 101 83.3 1220.0250
8270 PAH
25E0391-02 Terphenyl-dl4 135 108 41 174125
25E0391-02 Phenol-d5 102 40.9 10 90.1250
25E0391-02 Nitrobenzene-d5 171 137 25 189125
25E0391-02 2-Fluorophenol 174 69.7 10 117250
25E0391-02 2,4,6-Tribromophenol 393 157 10 180250
25E0391-02 2-Fluorobiphenyl 72.3 57.8 16 152125
DRO
25E0391-02 Bromofluorobenzene 4.35 109 50 1504.00
MBTEXN-GRO
25E0391-02 Toluene-d8 0.0255 102 83.3 1220.0250
8270 PAH
25E0391-03 2-Fluorophenol 112 44.9 10 117250
25E0391-03 Nitrobenzene-d5 163 130 25 189125
25E0391-03 Phenol-d5 68.6 27.4 10 90.1250
25E0391-03 Terphenyl-dl4 129 103 41 174125
25E0391-03 2-Fluorobiphenyl 70.8 56.6 16 152125
25E0391-03 2,4,6-Tribromophenol 226 90.2 10 180250
DRO
25E0391-03 Bromofluorobenzene 4.45 111 50 1504.00
MBTEXN-GRO
25E0391-03 Toluene-d8 0.0266 106 83.3 1220.0250
8270 PAH
25E0391-04 Terphenyl-dl4 140 112 41 174125
25E0391-04 Phenol-d5 87.2 34.9 10 90.1250
25E0391-04 Nitrobenzene-d5 170 136 25 189125
25E0391-04 2-Fluorophenol 117 46.9 10 117250
25E0391-04 2,4,6-Tribromophenol 187 74.9 10 180250
25E0391-04 2-Fluorobiphenyl 74.7 59.8 16 152125
DRO
25E0391-04 Bromofluorobenzene 4.56 114 50 1504.00
MBTEXN-GRO
25E0391-04 Toluene-d8 0.0260 104 83.3 1220.0250
MBTEXN-GRO
25E0391-05 Toluene-d8 0.0256 102 83.3 1220.0250
CtF WO#: 25E0391
www.ChemtechFord.com Page 20 of 20
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
Wasatch Environmental
Attn: Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
Work Order: 25H0329
Project: Former Sommers Auto Wercking
8/14/2025
Approved By:
Melissa Connolly, 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 26
_____________________________________________________________________________________________
Wasatch Environmental
Project: Former Sommers Auto Wercking
Project Manager: Blake Downey
Laboratory ID Sample Name
25H0329-01 MW-6
25H0329-02 MW-60
25H0329-03 MW-7
25H0329-04 Equipment Blank
25H0329-05 Tirp Blank
______________________________________________________________________________________________
Work Order Report Narrative
Sample Preparation
All samples were prepared within method specified holding times. No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order, with the following exception: DRO was detected in BZH0564-BLK1. All the associated samples
were non-detect, which makes the blank concentration negligible according to method criteria.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags. Cyclohexanone
had low recovery of the LCS in BZH0443-BS1. EPA GC/MS methods consider QC acceptalbe if 80% of the analytes pass
limits.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags.
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
There are no corrective actions associated with this work order.
www.ChemtechFord.com
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
Page 2 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: MW-6
Lab ID: 25H0329-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 13:55
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with Silica Gel Cleanup
mg/L 8/12/258/12/251.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 8/8/258/8/250.002 EPA 8260D/5030BNDBenzene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDEthylbenzene
mg/L 8/8/258/8/250.003 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDNaphthalene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDToluene
mg/L 8/8/258/8/250.015 EPA 8260D/5030BNDXylenes, total
mg/L 8/8/258/8/250.050 EPA 8260D/5030B0.050C5-C6 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 8/8/258/8/250.0500 EPA 8260D/[CALC]NDGasoline Range Organics
Semi-Volatile Compounds
ug/L 8/6/258/6/2510EPA 8270E/3511ND1-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAnthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDCarbazole
ug/L 8/6/258/6/2510EPA 8270E/3511NDChrysene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenzofuran
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluorene
ug/L 8/6/258/6/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDNaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPhenanthrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPyrene
Semi-Volatile Compounds - Fractionation
mg/L 8/6/258/6/250.0200 [CALC]/[CALC]NDC11-C13 Alkyl Naphthalenes
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 3 of 26Page 3 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: MW-6 (cont.)
Lab ID: 25H0329-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 13:55
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds - Fractionation (cont.)
mg/L 8/6/258/6/250.150 [CALC]/[CALC]NDTotal C12-C22 PAH
mg/L 8/6/258/6/252EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 8/6/258/6/255EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/35112C22-C35 Aliphatic hydrocarbons
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 4 of 26Page 4 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: MW-60
Lab ID: 25H0329-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 14:05
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with Silica Gel Cleanup
mg/L 8/12/258/12/251.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 8/8/258/8/250.002 EPA 8260D/5030BNDBenzene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDEthylbenzene
mg/L 8/8/258/8/250.003 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDNaphthalene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDToluene
mg/L 8/8/258/8/250.015 EPA 8260D/5030BNDXylenes, total
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 8/8/258/8/250.0500 EPA 8260D/[CALC]NDGasoline Range Organics
Semi-Volatile Compounds
ug/L 8/6/258/6/2510EPA 8270E/3511ND1-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAnthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDCarbazole
ug/L 8/6/258/6/2510EPA 8270E/3511NDChrysene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenzofuran
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluorene
ug/L 8/6/258/6/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDNaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPhenanthrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPyrene
Semi-Volatile Compounds - Fractionation
mg/L 8/6/258/6/250.0200 [CALC]/[CALC]NDC11-C13 Alkyl Naphthalenes
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 5 of 26Page 5 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: MW-60 (cont.)
Lab ID: 25H0329-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 14:05
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds - Fractionation (cont.)
mg/L 8/6/258/6/250.150 [CALC]/[CALC]NDTotal C12-C22 PAH
mg/L 8/6/258/6/252EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 8/6/258/6/255EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/35112C22-C35 Aliphatic hydrocarbons
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 6 of 26Page 6 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: MW-7
Lab ID: 25H0329-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 14:20
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with Silica Gel Cleanup
mg/L 8/12/258/12/251.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 8/8/258/8/250.002 EPA 8260D/5030BNDBenzene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDEthylbenzene
mg/L 8/8/258/8/250.003 EPA 8260D/5030B0.006Methyl-tert-butyl ether (MTBE)
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDNaphthalene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDToluene
mg/L 8/8/258/8/250.015 EPA 8260D/5030BNDXylenes, total
mg/L 8/8/258/8/250.050 EPA 8260D/5030B0.062C5-C6 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 8/8/258/8/250.0500 EPA 8260D/[CALC]0.0624Gasoline Range Organics
Semi-Volatile Compounds
ug/L 8/6/258/6/2510EPA 8270E/3511ND1-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAnthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDCarbazole
ug/L 8/6/258/6/2510EPA 8270E/3511NDChrysene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenzofuran
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluorene
ug/L 8/6/258/6/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDNaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPhenanthrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPyrene
Semi-Volatile Compounds - Fractionation
mg/L 8/6/258/6/250.0200 [CALC]/[CALC]NDC11-C13 Alkyl Naphthalenes
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 7 of 26Page 7 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: MW-7 (cont.)
Lab ID: 25H0329-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 14:20
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds - Fractionation (cont.)
mg/L 8/6/258/6/250.150 [CALC]/[CALC]NDTotal C12-C22 PAH
mg/L 8/6/258/6/252EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 8/6/258/6/255EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/35112C22-C35 Aliphatic hydrocarbons
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 8 of 26Page 8 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: Equipment Blank
Lab ID: 25H0329-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 14:50
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with Silica Gel Cleanup
mg/L 8/12/258/12/251.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 8/8/258/8/250.002 EPA 8260D/5030BNDBenzene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDEthylbenzene
mg/L 8/8/258/8/250.003 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDNaphthalene
mg/L 8/8/258/8/250.005 EPA 8260D/5030BNDToluene
mg/L 8/8/258/8/250.015 EPA 8260D/5030BNDXylenes, total
mg/L 8/8/258/8/250.050 EPA 8260D/5030B0.071C5-C6 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/L 8/8/258/8/250.050 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/L 8/8/258/8/250.0500 EPA 8260D/[CALC]0.0710Gasoline Range Organics
Semi-Volatile Compounds
ug/L 8/6/258/6/2510EPA 8270E/3511ND1-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511ND2-Methylnaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAcenaphthylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDAnthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (a) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 8/6/258/6/2510EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDCarbazole
ug/L 8/6/258/6/2510EPA 8270E/3511NDChrysene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenz (a,h) anthracene
ug/L 8/6/258/6/2510EPA 8270E/3511NDDibenzofuran
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluoranthene
ug/L 8/6/258/6/2510EPA 8270E/3511NDFluorene
ug/L 8/6/258/6/2510EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDNaphthalene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPhenanthrene
ug/L 8/6/258/6/2510EPA 8270E/3511NDPyrene
Semi-Volatile Compounds - Fractionation
mg/L 8/6/258/6/250.0200 [CALC]/[CALC]NDC11-C13 Alkyl Naphthalenes
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 9 of 26Page 9 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: Equipment Blank (cont.)
Lab ID: 25H0329-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 14:50
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Semi-Volatile Compounds - Fractionation (cont.)
mg/L 8/6/258/6/250.150 [CALC]/[CALC]NDTotal C12-C22 PAH
mg/L 8/6/258/6/252EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
mg/L 8/6/258/6/255EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/3511NDC17-C21 Aliphatic hydrocarbons
mg/L 8/6/258/6/252EPA 8270E/3511NDC22-C35 Aliphatic hydrocarbons
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 10 of 26Page 10 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: Tirp Blank
Lab ID: 25H0329-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 0:00
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1,1,2-Tetrachloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1,1-Trichloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1,2,2-Tetrachloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1,2-Trichloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1,2-Trichlorotrifluoroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1-Dichloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1-Dichloroethene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,1-Dichloropropene
ug/L 8/8/258/8/2510.0 EPA 8260D/5030BND2-Hexanone
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2,3-Trichlorobenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2,3-Trichloropropane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2,4-Trichlorobenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2,4-Trimethylbenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2-Dibromo-3-chloropropane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2-Dibromoethane (EDB)
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2-Dichlorobenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2-Dichloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,2-Dichloropropane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,3,5-Trimethylbenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,3-Dichlorobenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,3-Dichloropropane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND1,4-Dichlorobenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND2,2-Dichloropropane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND2-Chlorotoluene
ug/L 8/8/258/8/252.0 EPA 8260D/5030BND2-Nitropropane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BND4-Chlorotoluene
ug/L 8/8/258/8/2520.0 EPA 8260D/5030BNDAcetone
ug/L 8/8/258/8/255.0 EPA 8260D/5030BNDAcrylonitrile
ug/L 8/8/258/8/250.4 EPA 8260D/5030BNDBenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDBromobenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDBromochloromethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDBromodichloromethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDBromoform
ug/L 8/8/258/8/252.0 EPA 8260D/5030BNDBromomethane
ug/L 8/8/258/8/252.0 EPA 8260D/5030BNDCarbon Disulfide
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDCarbon Tetrachloride
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDChlorobenzene
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 11 of 26Page 11 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
Sample ID: Tirp Blank (cont.)
Lab ID: 25H0329-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/5/25 0:00
Preparation
Date/Time
Sampled By: Jack Scott
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDChloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDChloroform
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDChloromethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDcis-1,2-Dichloroethene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDcis-1,3-Dichloropropene
ug/L J-LOW-L8/8/258/8/2510.0 EPA 8260D/5030BNDCyclohexanone
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDDibromochloromethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDDibromomethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDDichlorodifluoromethane
ug/L 8/8/258/8/252.0 EPA 8260D/5030BNDEthyl Acetate
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDEthylbenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDEthyl Ether
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDHexachlorobutadiene
ug/L 8/8/258/8/2520.0 EPA 8260D/5030BNDIsobutanol
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDIsopropylbenzene
ug/L 8/8/258/8/252.0 EPA 8260D/5030BNDMethyl Ethyl Ketone
ug/L 8/8/258/8/255.0 EPA 8260D/5030BNDMethyl Isobutyl Ketone
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDMethylene Chloride
ug/L 8/8/258/8/250.6 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDNaphthalene
ug/L 8/8/258/8/2550.0 EPA 8260D/5030BNDn-Butyl Alcohol
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDn-Butylbenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDn-Propyl Benzene
ug/L 8/8/258/8/256.0 EPA 8260D/5030BNDPentachloroethane
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDp-Isopropyltoluene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDsec-Butyl Benzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDStyrene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDtert-Butylbenzene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDTetrachloroethene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDToluene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDtrans-1,2-Dichloroethene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDtrans-1,3-Dichloropropene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDTrichloroethene
ug/L 8/8/258/8/251.0 EPA 8260D/5030BNDTrichlorofluoromethane
ug/L 8/8/258/8/250.8 EPA 8260D/5030BNDVinyl Chloride
ug/L 8/8/258/8/253.0 EPA 8260D/5030BNDXylenes, total
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 12 of 26Page 12 of 26
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
Wasatch Environmental
Blake Downey
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2469-002I
8/5/25 15:04 @ 10.3 °C
8/14/2025
Former Sommers Auto Wercking
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. EPA GC/MS methods consider QC acceptable if 80% of analytes meet limits.
Project Name: Former Sommers Auto Wercking CtF WO#: 25H0329
www.ChemtechFord.com Page 13 of 26Page 13 of 26
Page 14 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8260D - 8260 Low Level Volatiles
QC Sample ID: BZH0443-BLK1 Batch: BZH0443
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: ug/L
1,1,1,2-Tetrachloroethane ND 1.0 1.00
1,1,1-Trichloroethane ND 1.0 1.00
1,1,2,2-Tetrachloroethane ND 1.0 1.00
1,1,2-Trichloroethane ND 1.0 1.00
1,1,2-Trichlorotrifluoroethane ND 1.0 1.00
1,1-Dichloroethane ND 1.0 1.00
1,1-Dichloroethene ND 1.0 1.00
1,1-Dichloropropene ND 1.0 1.00
1,2,3-Trichlorobenzene ND 1.0 1.00
1,2,3-Trichloropropane ND 1.0 1.00
1,2,4-Trichlorobenzene ND 1.0 1.00
1,2,4-Trimethylbenzene ND 1.0 1.00
1,2-Dibromo-3-chloropropane ND 1.0 1.00
1,2-Dibromoethane (EDB)ND 1.0 1.00
1,2-Dichlorobenzene ND 1.0 1.00
1,2-Dichloroethane ND 1.0 1.00
1,2-Dichloropropane ND 1.0 1.00
1,3,5-Trimethylbenzene ND 1.0 1.00
1,3-Dichlorobenzene ND 1.0 1.00
1,3-Dichloropropane ND 1.0 1.00
1,4-Dichlorobenzene ND 1.0 1.00
2,2-Dichloropropane ND 1.0 1.00
2-Chlorotoluene ND 1.0 1.00
2-Hexanone ND 10.0 1.00
2-Nitropropane ND 2.0 1.00
4-Chlorotoluene ND 1.0 1.00
Acetone ND 20.0 1.00
Acrylonitrile ND 5.0 1.00
Benzene ND 0.4 1.00
Bromobenzene ND 1.0 1.00
Bromochloromethane ND 1.0 1.00
Bromodichloromethane ND 1.0 1.00
Bromoform ND 1.0 1.00
Bromomethane ND 2.0 1.00
Carbon Disulfide ND 2.0 1.00
Carbon Tetrachloride ND 1.0 1.00
Chlorobenzene ND 1.0 1.00
Chloroethane ND 1.0 1.00
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
cis-1,2-Dichloroethene ND 1.0 1.00
cis-1,3-Dichloropropene ND 1.0 1.00
Cyclohexanone ND 10.0 1.00
Dibromochloromethane ND 1.0 1.00
Dibromomethane ND 1.0 1.00
Dichlorodifluoromethane ND 1.0 1.00
Ethyl Acetate ND 2.0 1.00
Ethyl Ether ND 1.0 1.00
Ethylbenzene ND 1.0 1.00
Hexachlorobutadiene ND 1.0 1.00
CtF WO#: 25H0329
www.ChemtechFord.com Page 15 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8260D - 8260 Low Level Volatiles (cont.)
QC Sample ID: BZH0443-BLK1 Batch: BZH0443
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: ug/L
Isobutanol ND 20.0 1.00
Isopropylbenzene ND 1.0 1.00
Methyl Ethyl Ketone ND 2.0 1.00
Methyl Isobutyl Ketone ND 5.0 1.00
Methylene Chloride ND 1.0 1.00
Methyl-tert-butyl ether (MTBE)ND 0.6 1.00
Naphthalene ND 1.0 1.00
n-Butyl Alcohol ND 50.0 1.00
n-Butylbenzene ND 1.0 1.00
n-Propyl Benzene ND 1.0 1.00
Pentachloroethane ND 6.0 1.00
p-Isopropyltoluene ND 1.0 1.00
sec-Butyl Benzene ND 1.0 1.00
Styrene ND 1.0 1.00
tert-Butylbenzene ND 1.0 1.00
Tetrachloroethene ND 1.0 1.00
Toluene ND 1.0 1.00
trans-1,2-Dichloroethene ND 1.0 1.00
trans-1,3-Dichloropropene ND 1.0 1.00
Trichloroethene ND 1.0 1.00
Trichlorofluoromethane ND 1.0 1.00
Vinyl Chloride ND 0.8 1.00
Xylenes, total ND 3.0 1.00
LCS - EPA 8260D - 8260 Low Level Volatiles
QC Sample ID: BZH0443-BS1 Batch: BZH0443
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: ug/L
1,1,1,2-Tetrachloroethane 120 70-130 12.0 10.0 1.0 1.00
1,1,1-Trichloroethane 130 70-130 13.0 10.0 1.0 1.00
1,1,2,2-Tetrachloroethane 105 70-130 10.5 10.0 1.0 1.00
1,1,2-Trichloroethane 112 70-130 11.2 10.0 1.0 1.00
1,1,2-Trichlorotrifluoroethane 132 70-130 13.2 10.0 1.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
1,1-Dichloroethane 123 70-130 12.3 10.0 1.0 1.00
1,1-Dichloroethene 121 70-130 12.1 10.0 1.0 1.00
1,1-Dichloropropene 123 70-130 12.3 10.0 1.0 1.00
1,2,3-Trichlorobenzene 114 70-130 11.4 10.0 1.0 1.00
1,2,3-Trichloropropane 106 70-130 10.6 10.0 1.0 1.00
1,2,4-Trichlorobenzene 118 70-130 11.8 10.0 1.0 1.00
1,2,4-Trimethylbenzene 132 70-130 13.2 10.0 1.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
1,2-Dibromo-3-chloropropane 104 70-130 10.4 10.0 1.0 1.00
1,2-Dibromoethane (EDB)113 70-130 11.3 10.0 1.0 1.00
1,2-Dichlorobenzene 117 70-130 11.7 10.0 1.0 1.00
1,2-Dichloroethane 105 70-130 10.5 10.0 1.0 1.00
1,2-Dichloropropane 116 70-130 11.6 10.0 1.0 1.00
1,3,5-Trimethylbenzene 123 70-130 12.3 10.0 1.0 1.00
1,3-Dichlorobenzene 121 70-130 12.1 10.0 1.0 1.00
1,3-Dichloropropane 112 70-130 11.2 10.0 1.0 1.00
CtF WO#: 25H0329
www.ChemtechFord.com Page 16 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
LCS - EPA 8260D - 8260 Low Level Volatiles (cont.)
QC Sample ID: BZH0443-BS1 Batch: BZH0443
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: ug/L
1,4-Dichlorobenzene 118 70-130 11.8 10.0 1.0 1.00
2,2-Dichloropropane 132 70-130 13.2 10.0 1.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
2-Chlorotoluene 121 70-130 12.1 10.0 1.0 1.00
2-Hexanone 118 70-130 29.5 25.0 10.0 1.00
2-Nitropropane 383 70-130 38.3 10.0 2.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
4-Chlorotoluene 74.6 70-130 7.46 10.0 1.0 1.00
Acetone 130 70-130 32.4 25.0 20.0 1.00
Acrylonitrile 117 70-130 11.7 10.0 5.0 1.00
Benzene 122 70-130 12.2 10.0 0.4 1.00
Bromobenzene 121 70-130 12.1 10.0 1.0 1.00
Bromochloromethane 133 70-130 13.3 10.0 1.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Bromodichloromethane 111 70-130 11.1 10.0 1.0 1.00
Bromoform 116 70-130 11.6 10.0 1.0 1.00
Bromomethane 240 70-130 24.0 10.0 2.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Carbon Disulfide 137 70-130 13.7 10.0 2.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Carbon Tetrachloride 122 70-130 12.2 10.0 1.0 1.00
Chlorobenzene 124 70-130 12.4 10.0 1.0 1.00
Chloroethane 121 70-130 12.1 10.0 1.0 1.00
Chloroform 115 70-130 11.5 10.0 1.0 1.00
Chloromethane 118 70-130 11.8 10.0 1.0 1.00
cis-1,2-Dichloroethene 128 70-130 12.8 10.0 1.0 1.00
cis-1,3-Dichloropropene 118 70-130 11.8 10.0 1.0 1.00
Cyclohexanone 24.6 70-130 12.3 50.0 10.0 1.00
J-LOW-L - Estimated low due to low recovery of LCS. EPA GC/MS methods consider QC acceptable if 80% of analytes meet limits.
Dibromochloromethane 139 70-130 13.9 10.0 1.0 1.00
Dibromomethane 112 70-130 11.2 10.0 1.0 1.00
Dichlorodifluoromethane 158 70-130 15.8 10.0 1.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Ethyl Acetate 109 70-130 81.8 75.0 2.0 1.00
Ethyl Ether 111 70-130 11.1 10.0 1.0 1.00
Ethylbenzene 130 70-130 13.0 10.0 1.0 1.00
Hexachlorobutadiene 97.9 70-130 9.79 10.0 1.0 1.00
Isobutanol 146 70-130 14.6 10.0 20.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Isopropylbenzene 124 70-130 12.4 10.0 1.0 1.00
Methyl Ethyl Ketone 89.0 70-130 22.2 25.0 2.0 1.00
Methyl Isobutyl Ketone 112 70-130 27.9 25.0 5.0 1.00
Methylene Chloride 115 70-130 11.5 10.0 1.0 1.00
Methyl-tert-butyl ether (MTBE)105 70-130 10.5 10.0 0.6 1.00
Naphthalene 119 70-130 11.9 10.0 1.0 1.00
n-Butyl Alcohol 105 70-130 52.6 50.0 50.0 1.00
CtF WO#: 25H0329
www.ChemtechFord.com Page 17 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
LCS - EPA 8260D - 8260 Low Level Volatiles (cont.)
QC Sample ID: BZH0443-BS1 Batch: BZH0443
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: ug/L
n-Butylbenzene 93.4 70-130 9.34 10.0 1.0 1.00
n-Propyl Benzene 126 70-130 12.6 10.0 1.0 1.00
Pentachloroethane 132 70-130 13.2 10.0 6.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
p-Isopropyltoluene 124 70-130 12.4 10.0 1.0 1.00
sec-Butyl Benzene 121 70-130 12.1 10.0 1.0 1.00
Styrene 124 70-130 12.4 10.0 1.0 1.00
tert-Butylbenzene 122 70-130 12.2 10.0 1.0 1.00
Tetrachloroethene 130 70-130 13.0 10.0 1.0 1.00
Toluene 123 70-130 12.3 10.0 1.0 1.00
trans-1,2-Dichloroethene 123 70-130 12.3 10.0 1.0 1.00
trans-1,3-Dichloropropene 124 70-130 12.4 10.0 1.0 1.00
Trichloroethene 124 70-130 12.4 10.0 1.0 1.00
Trichlorofluoromethane 134 70-130 13.4 10.0 1.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Vinyl Chloride 137 70-130 13.7 10.0 0.8 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
Xylenes, total 131 70-130 39.2 30.0 3.0 1.00
HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this
parameter.
CtF WO#: 25H0329
www.ChemtechFord.com Page 18 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8270E - 8270 PAH
QC Sample ID: BZH0226-BLK1 Batch: BZH0226
Date Prepared: 08/06/2025 Date Analyzed: 08/06/2025 Units: ug/L
1-Methylnaphthalene ND 10 1.00
2-Methylnaphthalene ND 10 1.00
Acenaphthene ND 10 1.00
Acenaphthylene ND 10 1.00
Anthracene ND 10 1.00
Benzo (a) anthracene ND 10 1.00
Benzo (a) pyrene ND 10 1.00
Benzo (b) fluoranthene ND 10 1.00
Benzo (g,h,i) perylene ND 10 1.00
Benzo (k) fluoranthene ND 10 1.00
Carbazole ND 10 1.00
Chrysene ND 10 1.00
Dibenz (a,h) anthracene ND 10 1.00
Dibenzofuran ND 10 1.00
Fluoranthene ND 10 1.00
Fluorene ND 10 1.00
Indeno (1,2,3-cd) pyrene ND 10 1.00
Naphthalene ND 10 1.00
Phenanthrene ND 10 1.00
Pyrene ND 10 1.00
LCS - EPA 8270E - 8270 PAH
QC Sample ID: BZH0226-BS1 Batch: BZH0226
Date Prepared: 08/06/2025 Date Analyzed: 08/06/2025 Units: ug/L
1-Methylnaphthalene 101 45-130 152 150 10 1.00
2-Methylnaphthalene 92.8 50-150 46 50.0 10 1.00
Acenaphthene 109 47-145 55 50.0 10 1.00
Acenaphthylene 113 50-150 57 50.0 10 1.00
Anthracene 117 50-150 58 50.0 10 1.00
Benzo (a) anthracene 119 50-150 60 50.0 10 1.00
Benzo (a) pyrene 118 50-150 59 50.0 10 1.00
Benzo (b) fluoranthene 126 50-150 63 50.0 10 1.00
Benzo (g,h,i) perylene 116 50-150 58 50.0 10 1.00
Benzo (k) fluoranthene 126 50-150 63 50.0 10 1.00
Carbazole 130 50-150 65 50.0 10 1.00
Chrysene 121 50-150 60 50.0 10 1.00
Dibenz (a,h) anthracene 118 50-150 59 50.0 10 1.00
Dibenzofuran 109 50-150 55 50.0 10 1.00
Fluoranthene 123 50-150 62 50.0 10 1.00
Fluorene 109 50-150 55 50.0 10 1.00
Indeno (1,2,3-cd) pyrene 119 50-150 59 50.0 10 1.00
Naphthalene 102 50-150 51 50.0 10 1.00
Phenanthrene 118 50-150 59 50.0 10 1.00
Pyrene 122 33-125 61 50.0 10 1.00
Matrix Spike - EPA 8270E - 8270 PAH
QC Sample ID: BZH0226-MS1 QC Source Sample: 25H0329-01Batch: BZH0226
Date Prepared: 08/06/2025 Date Analyzed: 08/06/2025 Units: ug/L
1-Methylnaphthalene 106 45-130 159 ND 150 10 1.00
2-Methylnaphthalene 98.5 50-150 49 ND 50.0 10 1.00
Acenaphthene 116 50-150 58 ND 50.0 10 1.00
CtF WO#: 25H0329
www.ChemtechFord.com Page 19 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Matrix Spike - EPA 8270E - 8270 PAH (cont.)
QC Sample ID: BZH0226-MS1 QC Source Sample: 25H0329-01Batch: BZH0226
Date Prepared: 08/06/2025 Date Analyzed: 08/06/2025 Units: ug/L
Acenaphthylene 117 50-150 58 ND 50.0 10 1.00
Anthracene 126 50-150 63 ND 50.0 10 1.00
Benzo (a) anthracene 130 50-150 65 ND 50.0 10 1.00
Benzo (a) pyrene 128 50-150 64 ND 50.0 10 1.00
Benzo (b) fluoranthene 138 50-150 69 ND 50.0 10 1.00
Benzo (g,h,i) perylene 132 50-150 66 ND 50.0 10 1.00
Benzo (k) fluoranthene 136 50-150 68 ND 50.0 10 1.00
Carbazole 134 50-150 67 ND 50.0 10 1.00
Chrysene 131 50-150 65 ND 50.0 10 1.00
Dibenz (a,h) anthracene 133 50-150 66 ND 50.0 10 1.00
Dibenzofuran 118 50-150 59 ND 50.0 10 1.00
Fluoranthene 135 50-150 68 ND 50.0 10 1.00
Fluorene 118 50-150 59 ND 50.0 10 1.00
Indeno (1,2,3-cd) pyrene 134 50-150 67 ND 50.0 10 1.00
Naphthalene 104 50-150 52 ND 50.0 10 1.00
Phenanthrene 128 50-150 64 ND 50.0 10 1.00
Pyrene 133 50-150 66 ND 50.0 10 1.00
Matrix Spike Dup - EPA 8270E - 8270 PAH
QC Sample ID: BZH0226-MSD1 QC Source Sample: 25H0329-01Batch: BZH0226
Date Prepared: 08/06/2025 Date Analyzed: 08/06/2025 Units: ug/L
1-Methylnaphthalene 107 0.798 45-130 20 161 ND 150 10 1.00
2-Methylnaphthalene 97.9 0.605 50-150 30 49 ND 50.0 10 1.00
Acenaphthene 113 2.48 50-150 30 57 ND 50.0 10 1.00
Acenaphthylene 115 1.95 50-150 30 57 ND 50.0 10 1.00
Anthracene 118 6.46 50-150 30 59 ND 50.0 10 1.00
Benzo (a) anthracene 119 8.87 50-150 30 59 ND 50.0 10 1.00
Benzo (a) pyrene 118 7.94 50-150 30 59 ND 50.0 10 1.00
Benzo (b) fluoranthene 128 7.91 50-150 30 64 ND 50.0 10 1.00
Benzo (g,h,i) perylene 120 9.66 50-150 30 60 ND 50.0 10 1.00
Benzo (k) fluoranthene 115 16.8 50-150 30 58 ND 50.0 10 1.00
Carbazole 124 7.99 50-150 30 62 ND 50.0 10 1.00
Chrysene 120 9.10 50-150 30 60 ND 50.0 10 1.00
Dibenz (a,h) anthracene 120 10.1 50-150 20 60 ND 50.0 10 1.00
Dibenzofuran 113 4.90 50-150 30 56 ND 50.0 10 1.00
Fluoranthene 124 8.50 50-150 30 62 ND 50.0 10 1.00
Fluorene 112 4.95 50-150 30 56 ND 50.0 10 1.00
Indeno (1,2,3-cd) pyrene 119 11.9 50-150 30 59 ND 50.0 10 1.00
Naphthalene 91.5 12.7 50-150 30 46 ND 50.0 10 1.00
Phenanthrene 118 7.69 50-150 30 59 ND 50.0 10 1.00
Pyrene 123 7.44 50-150 30 62 ND 50.0 10 1.00
CtF WO#: 25H0329
www.ChemtechFord.com Page 20 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8270E - 8270 TPH Fractionation
QC Sample ID: BZH0226-BLK1 Batch: BZH0226
Date Prepared: 08/06/2025 Date Analyzed: 08/06/2025 Units: mg/L
C11-12 Aliphatic hydrocarbons ND 2 1.00
C13-C16 Aliphatic hydrocarbons ND 5 1.00
C17-C21 Aliphatic hydrocarbons ND 2 1.00
C22-C35 Aliphatic hydrocarbons ND 2 1.00
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8015 C - DRO with silica gel cleanup
QC Sample ID: BZH0564-BLK1 Batch: BZH0564
Date Prepared: 08/12/2025 Date Analyzed: 08/12/2025 Units: mg/L
Diesel Range Organics 2 1.0 1.00
QB-01 - The method blank contains analyte at a concentration above the MRL; however, either the blank concentration is less than 10% of the sample result, or
the sample result is below the MRL, which is negligible according to method criteria.
LCS - EPA 8015 C - DRO with silica gel cleanup
QC Sample ID: BZH0564-BS1 Batch: BZH0564
Date Prepared: 08/12/2025 Date Analyzed: 08/12/2025 Units: mg/L
Diesel Range Organics 103 25-120 7 7.20 1.0 1.00
Matrix Spike - EPA 8015 C - DRO with silica gel cleanup
QC Sample ID: BZH0564-MS1 QC Source Sample: 25H0329-01Batch: BZH0564
Date Prepared: 08/12/2025 Date Analyzed: 08/12/2025 Units: mg/L
Diesel Range Organics 55.3 25-120 28 ND 50.4 7.0 1.00
Matrix Spike Dup - EPA 8015 C - DRO with silica gel cleanup
QC Sample ID: BZH0564-MSD1 QC Source Sample: 25H0329-01Batch: BZH0564
Date Prepared: 08/12/2025 Date Analyzed: 08/12/2025 Units: mg/L
Diesel Range Organics 69.5 22.6 25-120 20 35 ND 50.4 7.0 1.00
RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits.
CtF WO#: 25H0329
www.ChemtechFord.com Page 21 of 26
QC Report for Work Order (WO) - 25H0329
% Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte
Blank - EPA 8260D - MBTEXN-GRO
QC Sample ID: BZH0445-BLK1 Batch: BZH0445
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: mg/L
Benzene ND 0.0004 1.00
Ethylbenzene ND 0.001 1.00
Methyl-tert-butyl ether (MTBE)ND 0.0006 1.00
Naphthalene ND 0.001 1.00
Toluene ND 0.001 1.00
Xylenes, total ND 0.003 1.00
LCS - EPA 8260D - MBTEXN-GRO
QC Sample ID: BZH0445-BS1 Batch: BZH0445
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: mg/L
Benzene 95.1 70-130 0.010 0.0100 0.0004 1.00
Ethylbenzene 106 70-130 0.011 0.0100 0.001 1.00
Methyl-tert-butyl ether (MTBE)83.0 70-130 0.008 0.0100 0.0006 1.00
Naphthalene 82.4 70-130 0.008 0.0100 0.001 1.00
Toluene 97.5 70-130 0.010 0.0100 0.001 1.00
Xylenes, total 102 70-130 0.031 0.0300 0.003 1.00
Matrix Spike - EPA 8260D - MBTEXN-GRO
QC Sample ID: BZH0445-MS1 QC Source Sample: 25H0329-01Batch: BZH0445
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: mg/L
Benzene 82.0 70-130 0.041 ND 0.0500 0.002 1.00
Ethylbenzene 91.5 70-130 0.046 ND 0.0500 0.005 1.00
Methyl-tert-butyl ether (MTBE)88.3 70-130 0.044 ND 0.0500 0.003 1.00
Naphthalene 86.7 70-130 0.043 ND 0.0500 0.005 1.00
Toluene 88.6 70-130 0.044 ND 0.0500 0.005 1.00
Xylenes, total 93.4 70-130 0.140 ND 0.150 0.015 1.00
Matrix Spike Dup - EPA 8260D - MBTEXN-GRO
QC Sample ID: BZH0445-MSD1 QC Source Sample: 25H0329-01Batch: BZH0445
Date Prepared: 08/08/2025 Date Analyzed: 08/08/2025 Units: mg/L
Benzene 81.6 0.489 70-130 20 0.041 ND 0.0500 0.002 1.00
Ethylbenzene 92.5 1.09 70-130 25 0.046 ND 0.0500 0.005 1.00
Methyl-tert-butyl ether (MTBE)90.9 2.90 70-130 20 0.045 ND 0.0500 0.003 1.00
Naphthalene 87.7 1.15 70-130 25 0.044 ND 0.0500 0.005 1.00
Toluene 89.0 0.450 70-130 20 0.044 ND 0.0500 0.005 1.00
Xylenes, total 93.6 0.250 70-130 20 0.140 ND 0.150 0.015 1.00
CtF WO#: 25H0329
www.ChemtechFord.com Page 22 of 26
Surrogates Report for Work Order (WO) - 25H0329
Spk ValueResultUCL DF BatchLCL% RecAnalyteQC ID
Blank - EPA 8015 C
BZH0564-BLK1 Bromofluorobenzene 70.9 30 BZH0564 1.001304.05 5.71
BZH0564-BLK1 Capric Acid 0 BZH0564 1.0010.00 14.3
LCS - EPA 8015 C
BZH0564-BS1 Bromofluorobenzene 56.9 30 BZH0564 1.001303.25 5.71
BZH0564-BS1 Capric Acid 0 BZH0564 1.0010.00 14.3
Matrix Spike - EPA 8015 C
BZH0564-MS1 Bromofluorobenzene 49.6 30 BZH0564 1.0013019.8 40.0
BZH0564-MS1 Capric Acid 0 BZH0564 1.0010.00 100
Matrix Spike Dup - EPA 8015 C
BZH0564-MSD1 Bromofluorobenzene 31.3 30 BZH0564 1.0013012.5 40.0
BZH0564-MSD1 Capric Acid 0 BZH0564 1.0010.00 100
Blank - EPA 8260D
BZH0443-BLK1 1,2-Dichloroethane-d4 110 64.2 BZH0443 1.0012611.0 10.0
BZH0443-BLK1 4-Bromofluorobenzene 104 71.4 BZH0443 1.0012510.4 10.0
BZH0443-BLK1 Toluene-d8 99.4 63.2 BZH0443 1.001299.94 10.0
BZH0445-BLK1 Toluene-d8 97.6 83.3 BZH0445 1.001220.00976 0.0100
LCS - EPA 8260D
BZH0443-BS1 1,2-Dichloroethane-d4 98.4 64.2 BZH0443 1.001269.84 10.0
BZH0443-BS1 4-Bromofluorobenzene 94.3 71.4 BZH0443 1.001259.43 10.0
BZH0443-BS1 Toluene-d8 99.1 63.2 BZH0443 1.001299.91 10.0
BZH0445-BS1 Toluene-d8 94.8 83.3 BZH0445 1.001220.00948 0.0100
Matrix Spike - EPA 8260D
BZH0443-MS1 1,2-Dichloroethane-d4 98.4 64.2 BZH0443 1.0012649.2 50.0
BZH0443-MS1 4-Bromofluorobenzene 95.0 71.4 BZH0443 1.0012547.5 50.0
BZH0443-MS1 Toluene-d8 96.8 63.2 BZH0443 1.0012948.4 50.0
BZH0445-MS1 Toluene-d8 96.7 83.3 BZH0445 1.001220.0484 0.0500
Matrix Spike Dup - EPA 8260D
BZH0443-MSD1 1,2-Dichloroethane-d4 103 64.2 BZH0443 1.0012651.6 50.0
BZH0443-MSD1 4-Bromofluorobenzene 99.0 71.4 BZH0443 1.0012549.5 50.0
BZH0443-MSD1 Toluene-d8 95.7 63.2 BZH0443 1.0012947.8 50.0
BZH0445-MSD1 Toluene-d8 95.6 83.3 BZH0445 1.001220.0478 0.0500
Blank - EPA 8270E
BZH0226-BLK1 2-Fluorophenol 56.1 10 BZH0226 1.00117140 250
BZH0226-BLK1 Phenol-d5 29.9 10 BZH0226 1.0090.1 74.7 250
BZH0226-BLK1 Nitrobenzene-d5 138 25 BZH0226 1.00189 172 125
BZH0226-BLK1 2-Fluorobiphenyl 112 16 BZH0226 1.00152 140 125
BZH0226-BLK1 2,4,6-Tribromophenol 87.6 10 BZH0226 1.00180 219 250
BZH0226-BLK1 Terphenyl-dl4 70.2 41 BZH0226 1.0017487.8 125
LCS - EPA 8270E
BZH0226-BS1 2-Fluorophenol 70.8 10 BZH0226 1.00117177 250
BZH0226-BS1 Phenol-d5 42.9 10 BZH0226 1.0090.1 107 250
BZH0226-BS1 Nitrobenzene-d5 129 25 BZH0226 1.00189 161 125
BZH0226-BS1 2-Fluorobiphenyl 100 16 BZH0226 1.00152 125 125
BZH0226-BS1 2,4,6-Tribromophenol 86.3 10 BZH0226 1.00180 216 250
BZH0226-BS1 Terphenyl-dl4 65.8 41 BZH0226 1.0017482.3 125
Matrix Spike - EPA 8270E
BZH0226-MS1 2-Fluorophenol 36.7 10 BZH0226 1.0011791.7 250
BZH0226-MS1 Phenol-d5 22.0 10 BZH0226 1.0090.1 55.1 250
BZH0226-MS1 Nitrobenzene-d5 130 25 BZH0226 1.00189 162 125
BZH0226-MS1 2-Fluorobiphenyl 109 16 BZH0226 1.00152 136 125
BZH0226-MS1 2,4,6-Tribromophenol 64.5 10 BZH0226 1.00180 161 250
CtF WO#: 25H0329
www.ChemtechFord.com Page 23 of 26
Matrix Spike - EPA 8270E (cont.)
BZH0226-MS1 Terphenyl-dl4 66.8 41 BZH0226 1.0017483.5 125
Matrix Spike Dup - EPA 8270E
BZH0226-MSD1 2-Fluorophenol 64.8 10 BZH0226 1.00117162 250
BZH0226-MSD1 Phenol-d5 42.0 10 BZH0226 1.0090.1 105 250
BZH0226-MSD1 Nitrobenzene-d5 122 25 BZH0226 1.00189 153 125
BZH0226-MSD1 2-Fluorobiphenyl 103 16 BZH0226 1.00152 129 125
BZH0226-MSD1 2,4,6-Tribromophenol 83.1 10 BZH0226 1.00180 208 250
BZH0226-MSD1 Terphenyl-dl4 61.6 41 BZH0226 1.0017477.0 125
CtF WO#: 25H0329
www.ChemtechFord.com Page 24 of 26
UCLLCL%RecResultAnalyteLabNumber
Surrogate Recoveries (Field Samples)
SpkLvl Qualifier
8270 PAH
25H0329-01 2-Fluorobiphenyl 120 96.1 16 152125
25H0329-01 2-Fluorophenol 112 44.8 10 117250
25H0329-01 Nitrobenzene-d5 159 127 25 189125
25H0329-01 Phenol-d5 68.4 27.3 10 90.1250
25H0329-01 Terphenyl-dl4 79.2 63.4 41 174125
25H0329-01 2,4,6-Tribromophenol 165 66.1 10 180250
DRO with silica gel cleanup
25H0329-01 Bromofluorobenzene 3.32 58.1 30 1305.71
25H0329-01 Capric Acid 0.00 0 114.3
MBTEXN-GRO
25H0329-01 Toluene-d8 0.0504 101 83.3 1220.0500
8270 PAH
25H0329-02 Terphenyl-dl4 82.6 66.1 41 174125
25H0329-02 Phenol-d5 74.7 29.9 10 90.1250
25H0329-02 Nitrobenzene-d5 160 128 25 189125
25H0329-02 2-Fluorophenol 119 47.8 10 117250
25H0329-02 2,4,6-Tribromophenol 168 67.1 10 180250
25H0329-02 2-Fluorobiphenyl 117 93.6 16 152125
DRO with silica gel cleanup
25H0329-02 Bromofluorobenzene 4.06 71.0 30 1305.71
25H0329-02 Capric Acid 0.00 0 114.3
MBTEXN-GRO
25H0329-02 Toluene-d8 0.0489 97.8 83.3 1220.0500
8270 PAH
25H0329-03 2-Fluorophenol 86.3 34.5 10 117250
25H0329-03 Nitrobenzene-d5 158 126 25 189125
25H0329-03 Phenol-d5 50.8 20.3 10 90.1250
25H0329-03 Terphenyl-dl4 75.7 60.5 41 174125
25H0329-03 2-Fluorobiphenyl 119 95.5 16 152125
25H0329-03 2,4,6-Tribromophenol 146 58.4 10 180250
DRO with silica gel cleanup
25H0329-03 Bromofluorobenzene 2.82 49.4 30 1305.71
25H0329-03 Capric Acid 0.00 0 114.3
MBTEXN-GRO
25H0329-03 Toluene-d8 0.0493 98.6 83.3 1220.0500
8270 PAH
25H0329-04 2-Fluorobiphenyl 123 98.5 16 152125
25H0329-04 Terphenyl-dl4 117 93.5 41 174125
25H0329-04 Phenol-d5 123 49.1 10 90.1250
25H0329-04 2-Fluorophenol 193 77.2 10 117250
25H0329-04 2,4,6-Tribromophenol 214 85.7 10 180250
25H0329-04 Nitrobenzene-d5 161 128 25 189125
DRO with silica gel cleanup
25H0329-04 Bromofluorobenzene 3.60 63.0 30 1305.71
25H0329-04 Capric Acid 0.00 0 114.3
MBTEXN-GRO
25H0329-04 Toluene-d8 0.0489 97.8 83.3 1220.0500
CtF WO#: 25H0329
www.ChemtechFord.com Page 25 of 26
8260 Low Level Volatiles
25H0329-05 Toluene-d8 9.56 95.6 63.2 12910.0
25H0329-05 1,2-Dichloroethane-d4 11.3 113 64.2 12610.0
25H0329-05 4-Bromofluorobenzene 9.87 98.7 71.4 12510.0
CtF WO#: 25H0329
www.ChemtechFord.com Page 26 of 26

Appendix C
Data Validation Report

Data Validation Report

Sample Delivery Group (SDG): 25H0329, 25E0391
Laboratory: Chemtech-Ford Analytical, Salt Lake City, Utah
Project/Site Name: Former Sommers Auto, Job # 2469-002F
AQS Report Date: 9/12/2025
Matrix: Water
Validation Level: Level III
Validated By: J. Workman

1.0 Introduction

This Sample Delivery Group (SDG) includes the samples listed below.

Sample ID Lab ID Matrix Sample Date VO
C
/
G
R
O

82
6
0
D
,

8
0
1
5

SV
O
C
/
D
R
O
82
7
0
,

8
0
1
5
C

MW-6 25E0391-01 Water 5/6/2025 x x
EB-1 25E0391-02 Water 5/6/2025 x x
MW-7 25E0391-03 Water 5/6/2025 x x
MW-77 25E0391-04 Water 5/6/2025 x x
Trip Blank 25E0391-05 Water 5/6/2025 x x

MW-6 25H0329-01 Water 8/5/2025 x x
MW-60 25H0329-02 Water 8/5/2025 x x
MW-7 25H0329-03 Water 8/5/2025 x x
Equipment Blank 25H0329-04 Water 8/5/2025 x x
Trip Blank 25H0329-05 Water 8/5/2025 x x
Note: Highlighted samples are field duplicates.

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1.1 Project Overview

Data validation was based on the US Environmental Protection Agency’s National Functional Guidelines
for Organic and Inorganic Data Review (EPA 1999 and 2004), the referenced EPA methods and project-
specific control limits, where applicable. Where specific guidance is not available, the data has been
evaluated in a conservative manner consistent with industry standards using professional experience.

This review was based exclusively on data reports, Quality Control (QC) summaries and raw data
provided by the laboratory. The following are definitions of the data qualifiers, in addition to the
laboratory qualifiers, that may be used in this report.

J+ Data are qualified as estimated, with a high bias likely to occur. False positives or false
negatives are unlikely to have been reported.
J- Data are qualified as estimated, with a low bias likely to occur. False positives or false negatives
are unlikely to have been reported.
J Data are qualified as estimated; it is not possible to assess the direction of the potential bias.
False positives or false negatives are unlikely to have been reported.
R Data are qualified as rejected. There is a significant potential for the reporting of false
negatives or false positives.
UJ Indicates the compound or analyte was analyzed for but not detected. The sample detection
limit is an estimated value.
B The compound or analyte was found in an associated blank as well as in the sample.
None Indicates the data was not significantly impacted by the finding, therefore qualification was not
required.

2.0 Data Review

2.1 Sample Receipt

Copies of the chain-of-custody (COC) forms were included in the laboratory data package. COCs were
reviewed for accuracy, completeness, and evidence of correct sample preservation. No sample receipt
problems were noted.

2.2 Holding Times

All samples were analyzed within required holding times.

2.3 Reporting Levels

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The data user should ensure that all reporting levels meet project requirements. All samples were run
undiluted, at normal laboratory reporting levels.

2.4 Initial and Continuing Calibration

The laboratory did not provide initial or continuing calibration information. It is assumed that all initial
and ongoing calibration requirements were met.

2.5 Blanks

Field and method blanks were free of contamination.

2.6 Surrogate Recoveries

Surrogate recoveries were within method limits, with the following exceptions:

Sample(s) Analyte(s) Notes Qualifiers
25E0391
EB-1
MW-6
MW-7
MW-77
8270 SVOC Base/Neutral
(BN) compounds
Surrogate recovery was low for
2-Fluorobiphenyl
Flag detects and
non-detects as
estimated (J and
UJ)
25E0391
EB-1
MW-6
MW-7
MW-77
8270 SVOC Acid compounds Surrogate recovery was low for
2-Fluorophenol
Phenol-d5
Flag detects and
non-detects as
estimated (J and
UJ)
25E0391
MW-6
MW-77
EB-1
8270 SVOC Nitroaromatic
and other polar compounds
Surrogate recovery was high for
Nitrobenzene-d5
Flag detects as
estimated (J)
25E0391
EB-1

8270 SVOC Acid compounds Surrogate recovery was high for
2,4,6-Tribromophenol
Flag detects as
estimated (J)
25H0329
MW-6
MW-60
MW-7
8270 SVOC Acid compounds Surrogate recovery was low for
2-Fluorophenol
Phenol-d5
Flag detects and
non-detects as
estimated (J and
UJ)
25H0329
MW-7
8270 SVOC Acid compounds Surrogate recovery was high for
2,4,6-Tribromophenol
Flag detects as
estimated (J)
25H0329 8015C DRO Surrogate recovery was zero for None required
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MW-60
MW-7
Equipment
Blank
Capric Acid. However, this is a
reverse surrogate used to ensure
that the silica gel cleanup is
working.

2.7 Laboratory Control Samples (LCSs)

The laboratory did not provide LCS information. The case narrative indicated that, except as noted, all
method QC requirements were met.

Sample(s) Analyte(s) Notes Qualifiers
25H0329
Trip Blank
Cyclohexanone LCS recovery was low. Flag detects and
non-detects as
estimated (J and
UJ)
25H0329
Trip Blank
Xylenes, total
1,1,2-Trichlorotrifluoroethane
1,2,4-Trimethylbenzene
2,2-Dichloropropane
Pentachloroethane
Bromochloromethane
Trichlorofluoromethane
Carbon Disulfide
Vinyl Chloride
Dibromochloromethane
Isobutanol
Dichlorodifluoromethane
LCS recovery was high. Flag detects as
estimated (J)
25H0329
Trip Blank
Bromomethane
2-Nitropropane
LCS recovery was very high. Flag detects as
estimated (J)

2.8 Matrix Spikes (MSs)

Matrix spike recoveries were within method limits with the following exceptions:

Sample(s) Analyte(s) Notes Qualifiers
25H0329
MW-6
Benzo (g,h,i) perylene
Benzo (k) fluoranthene
Carbazole
Chrysene
Dibenz (a,h) anthracene
Fluoranthene
MS and/or MSD recovery was
low.
Flag detects and
non-detects as
estimated (J
and UJ)
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Indeno (1,2,3-cd) pyrene
Pyrene
25H0329
MW-6
8015C DRO MS/MSD recovery was zero for
Capric Acid. However, this is a
reverse surrogate used to ensure
that the silica gel cleanup is
working.
None required
25H0329
MW-6

Diesel Range Organics MS/MSD RPD was high. Flag detects and
non-detects as
estimated (J
and UJ)

2.9 Field Duplicates

Field duplicates are shown in Appendix 1. Duplicate recovery is only evaluated for analyte
concentrations greater than four times the laboratory reporting limit. For groundwater field duplicates,
a calculated RPD of 20% is considered acceptable. For soil duplicates, a calculated RPD of 50% is
considered acceptable. Duplicate RPDs met project requirements.

2.10 Other QC Elements

No other QC problems were noted.

3.0 Validation Summary

As determined by this evaluation, all analyses in these SDGs appear to have been conducted according
to method requirements. Some results have been qualified as estimated (J flags). As qualified, all data
are acceptable for use.

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APPENDIX 1. Field Duplicate Summary

MW-7 MW-77
Analyte 25E0391-03 25E0391-04 Units RPD Q
Diesel Range Organics ND ND mg/L ---
Gasoline Range Organics ND ND mg/L ---
Benzene ND ND mg/L ---
Ethylbenzene ND ND mg/L ---
Methyl-tert-butyl ether (MTBE) 0.005 0.006 mg/L 18%
Naphthalene ND ND mg/L ---
Toluene ND ND mg/L ---
Xylenes, total ND ND mg/L ---
C5-C6 Aliphatic hydrocarbons ND ND mg/L ---
C7-C8 Aliphatic hydrocarbons 0.025 ND mg/L --- <4xRL
C9-C10 Aliphatic hydrocarbons ND ND mg/L ---
C9-C10 Alkyl Benzenes ND ND mg/L ---
2-Methylnaphthalene ND ND ug/L ---
Acenaphthene ND ND ug/L ---
Acenaphthylene ND ND ug/L ---
Anthracene ND ND ug/L ---
Benzo (a) anthracene ND ND ug/L ---
Benzo (a) pyrene ND ND ug/L ---
Benzo (b) fluoranthene ND ND ug/L ---
Benzo (g,h,i) perylene ND ND ug/L ---
Benzo (k) fluoranthene ND ND ug/L ---
Carbazole ND ND ug/L ---
Chrysene ND ND ug/L ---
Dibenz (a,h) anthracene ND ND ug/L ---
Dibenzofuran ND ND ug/L ---
Fluoranthene ND ND ug/L ---
Fluorene ND ND ug/L ---
Indeno (1,2,3-cd) pyrene ND ND ug/L ---
Naphthalene ND ND ug/L ---
Nitrobenzene ND ND ug/L ---
Phenanthrene ND ND ug/L ---
Pyrene ND ND ug/L ---
C11-12 Aliphatic hydrocarbons ND ND mg/L ---
C13-C16 Aliphatic hydrocarbons ND ND mg/L ---
C17-C21 Aliphatic hydrocarbons ND ND mg/L ---
C22-C35 Aliphatic hydrocarbons 1 ND mg/L --- <4xRL
C11-C13 Alkyl Naphthalenes ND ND mg/L ---
Total C12-C22 PAH ND ND mg/L ---

MW-6 MW-60
Analyte 25H0329-01 25H0329-02 Units RPD Q
C11-C13 Alkyl Naphthalenes ND ND mg/L ---
Total C12-C22 PAH ND ND mg/L ---
Diesel Range Organics ND ND mg/L ---
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Gasoline Range Organics ND ND mg/L ---
Benzene ND ND mg/L ---
Ethylbenzene ND ND mg/L ---
Methyl-tert-butyl ether (MTBE) ND ND mg/L ---
Naphthalene ND ND mg/L ---
Toluene ND ND mg/L ---
Xylenes, total ND ND mg/L ---
C5-C6 Aliphatic hydrocarbons 0.050 ND mg/L --- <4xRL
C7-C8 Aliphatic hydrocarbons ND ND mg/L ---
C9-C10 Aliphatic hydrocarbons ND ND mg/L ---
C9-C10 Alkyl Benzenes ND ND mg/L ---
1-Methylnaphthalene ND ND ug/L ---
2-Methylnaphthalene ND ND ug/L ---
Acenaphthene ND ND ug/L ---
Acenaphthylene ND ND ug/L ---
Anthracene ND ND ug/L ---
Benzo (a) anthracene ND ND ug/L ---
Benzo (a) pyrene ND ND ug/L ---
Benzo (b) fluoranthene ND ND ug/L ---
Benzo (g,h,i) perylene ND ND ug/L ---
Benzo (k) fluoranthene ND ND ug/L ---
Carbazole ND ND ug/L ---
Chrysene ND ND ug/L ---
Dibenz (a,h) anthracene ND ND ug/L ---
Dibenzofuran ND ND ug/L ---
Fluoranthene ND ND ug/L ---
Fluorene ND ND ug/L ---
Indeno (1,2,3-cd) pyrene ND ND ug/L ---
Naphthalene ND ND ug/L ---
Phenanthrene ND ND ug/L ---
Pyrene ND ND ug/L ---
C11-12 Aliphatic hydrocarbons ND ND mg/L ---
C13-C16 Aliphatic hydrocarbons ND ND mg/L ---
C17-C21 Aliphatic hydrocarbons ND ND mg/L ---
C22-C35 Aliphatic hydrocarbons 2 2 mg/L 0%
<4xRL = sample concentration was less than 4x the reporting limit.

Data Quality Summary
for
Former Sommers Auto

Prepared for:

Wasatch Environmental, Inc.
2410 West California Ave.
Salt Lake City, Utah 84104

Prepared by:

AQS, Inc.
2112 Deer Run Drive
South Weber, Utah 84405

12 September 2025

Data Quality Summary AQS, Inc.

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Introduction

This data quality summary is prepared for Wasatch Environmental, Inc. and summarizes the precision,
accuracy, representativeness, completeness, and comparability (PARCC) results for Former Sommers
Auto, Job # 2469-002F.

A data validation report for each data set is provided separately. Data quality parameters and objectives
are defined in the project Quality Assurance Project Plan

Project samples are listed in Table 1. Acronyms used in this report are listed in Table 2.

Table 1. Project Samples

Sample ID Lab ID Matrix Sample Date
MW-6 25E0391-01 Water 5/6/2025
EB-1 25E0391-02 Water 5/6/2025
MW-7 25E0391-03 Water 5/6/2025
MW-77 25E0391-04 Water 5/6/2025
Trip Blank 25E0391-05 Water 5/6/2025

MW-6 25H0329-01 Water 8/5/2025
MW-60 25H0329-02 Water 8/5/2025
MW-7 25H0329-03 Water 8/5/2025
Equipment Blank 25H0329-04 Water 8/5/2025
Trip Blank 25H0329-05 Water 8/5/2025
Note: Highlighted samples are field duplicates.

Table 2. Acronyms

Acronym Definition
%R Percent Recovery
EB Equipment Blank
FD Field Duplicate
LCS Laboratory Control Sample
MS Matrix Spike
MSD Matrix Spike Duplicate
PARCC Precision, Accuracy, Representativeness, Completeness, Comparability
QC Quality Control
RPD Relative Percent Difference
TB Trip Blank
VOC Volatile Organic Compound

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Data Quality Objectives

The overall QA/QC objective for this project is to develop and implement procedures for field sampling,
chain-of-custody (COC), laboratory analyses, and reporting that will provide results which are valid and
legally defensible in a court of law. The purpose of implementing these procedures is to assess the data
obtained with respect to the data quality parameters of precision, representativeness, accuracy,
completeness, and comparability for both the laboratory analytical program and field sample collection
activities. The primary goal of the program is to ensure that the data generated are representative of
environmental conditions at the Site. To achieve this goal, a combination of quantitative procedures and
qualitative evaluations will be used to assess the data quality.
Precision

Precision is a measure of mutual agreement among individual measurements of the same property,
usually under prescribed similar conditions, and typically expressed in terms of the standard deviation or
relative percent difference (RPD).

Field Data Precision

Field precision is assessed through the collection and analysis of field duplicates and comparing the
analytical results of the field duplicates to the analytical results of the environmental samples.

For groundwater field duplicates, a calculated RPD of 20% is deemed acceptable. For soil and indoor air
duplicates, a calculated RPD of 50% is deemed acceptable.

FIELD DUPLICATE RPD
SDG # FD RPD # Unacceptable # Acceptable % Acceptable
25E0391 38 0 38 100.0%
25H0329 38 0 38 100.0%
Overall 76 0 76 100.0%

For this project, 100% of field duplicate results were acceptable.

Laboratory Data Precision

Laboratory precision will be assessed through the calculation of RPD and/or relative standard deviations
(RSD) for duplicate samples. Analytical precision will be measured by comparing analytical results for
matrix spike (MS) and matrix spike duplicate (MSD) samples and internal laboratory samples that may
be analyzed according to analytical method or laboratory standard operating procedure requirements.
Acceptance criteria for analytical precision will be based on established laboratory quality control limits
for individual analytes. Applicable control limits are based on statistically valid historical data compiled
by the laboratory which meet or exceed precision requirements specified by the analytical method.
Standard operating procedures are on file with the selected project laboratory.
Data Quality Summary AQS, Inc.

4

For laboratory duplicates, the RPDs within established laboratory control limits for each analyte are
acceptable.

MS/MSD RPD
SDG # MS RPD # Unacceptable # Acceptable % Acceptable
25E0391 159 0 159 100.0%
25H0329 27 0 27 100.0%
Overall 186 0 186 100.0%

For this project, 100% of MS/MSD duplicate results were acceptable.

Precision Assessment

Overall, 100% of the field and laboratory duplicates met project requirements. Precision for the project
is considered acceptable and under control.
Accuracy

Accuracy is the degree of agreement of a measurement with an accepted reference or true value. The
accuracy of the analytical data is assessed by examining possible sources of error that may bias the
analytical results.

Field Data Accuracy

Sources of the errors in the field can occur during sampling (i.e., cross contamination from sampling
equipment, etc.), field handling, and transportation. Accuracy in the field will be assessed by
documenting adherence to standard operating procedures for sample collection, preservation, and
handling, and through preparation and analysis of trip blanks and equipment blanks.

It is presumed that field operating procedures were followed. Sample receiving documentation indicates
that proper sample collection, preservation and handling procedures were followed.

FIELD BLANKS
SDG # Blank Results # Unacceptable # Acceptable % Acceptable
25E0391 159 0 159 100.0%
25H0329 111 0 111 100.0%
Overall 270 0 270 100.0%

For this project, 100% of the field blank results were acceptable.

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Laboratory Data Accuracy

Sources of errors in the laboratory can occur during sample preparation and analysis, duplicate and
control sample preparation, and due to instrument and quantification errors. Laboratory accuracy is
assessed through the analysis of standard reference materials (SRMs) in laboratory control samples,
MSs, MSDs, and surrogate compounds and the determination of their recoveries in terms of percentage.
Control limits are established by the laboratory for each analyte based on statistically valid historical
recovery results, which meet or exceed the requirements specified by the analytical method. In addition,
the project laboratory will analyze method blanks to determine the potential for contamination
introduced at any stage of sample preparation or analysis. Laboratory control limits and frequency for
spike recovery and method blank analysis are specified in standard operating procedures for each
analytical method, which are on file with the selected project laboratory.

Spike recoveries from laboratory control samples (LCSs) and MS/MSDs that are within established
laboratory control limits for each analyte are considered acceptable.

MS %R
SDG # MS/MSD %R # Unacceptable # Acceptable % Acceptable
25E0391 27 0 27 100.0%
25H0329 72 10 62 86.1%
Overall 99 10 89 89.9%

LCS %R
SDG # LCS %R # Unacceptable # Acceptable % Acceptable
25E0391 27 0 27 100.0%
25H0329 100 15 85 85.0%
Overall 127 15 112 88.2%

For this project, 89.9% of MS results and 88.2% of LCS results were acceptable.

Accuracy Assessment

Overall, 89.0% of the accuracy-related parameters met project requirements. Accuracy for the project is
considered acceptable and under control.
Representativeness

Representativeness is a qualitative parameter that expresses the degree to which sample data
accurately and precisely represent a characteristic of a population, parameter variations at a sampling
point, or an environmental condition. As such, representativeness requires the selection of appropriate
analytical methods, sampling protocols, and sampling locations such that results are representative of
the media being sampled and conditions being measured.

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Field Data Representativeness

Representativeness is dependent upon the proper design of the sampling program and will be satisfied
by ensuring that project requirements are followed.

For this project, it is presumed that environmental samples are collected from locations either
reasonably believed to be, or established to be, representative to identify source areas, evaluate the
nature of the release(s), and delineate the extent of contamination.

Laboratory Data Representativeness

Representativeness in the laboratory is ensured by carefully following standard laboratory analytical
methods and procedures, meeting sample holding times, specifying detection limits that are at or below
regulatory standards, and analyzing method blanks to check for laboratory contamination. Sample
results will not be considered representative if contaminants are detected in the method blanks, or if
the reporting limits are above the specified screening levels.

LABORATORY BLANKS
SDG # Blank Results # Unacceptable # Acceptable % Acceptable
25E0391 33 0 33 100.0%
25H0329 104 0 104 100.0%
Overall 137 0 137 100.0%

For this project, 100% of the method blank results were acceptable. Sample holding times were not
exceeded, all samples were properly preserved, receiving temperatures were not exceeded.

Representativeness Assessment

Overall, 100% of the representativeness-related parameters met project requirements.
Completeness

Completeness is an assessment of the number of valid measurements obtained in relation to the total
number of measurements planned for the successful achievement of the investigative objectives.
Completeness is expressed as the percentage of valid measurements to the total number of
measurements. The closer the numbers, the more complete the measurement process.

Field Data Completeness

Field completeness evaluates the number of valid measurements obtained from all measurements taken
in the project. The intent of this program is to attempt to achieve a goal of 100 percent field
completeness. Realizing that under normal conditions this goal may not be achievable, the field
completeness goal for this program is 90 percent. This completeness goal is considered adequate to
Data Quality Summary AQS, Inc.

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meet the DQOs for this Site based on prior consideration of PARCC parameters, the sampling plan
designs, and data collection activities proposed for each medium.

Laboratory Data Completeness

Laboratory completeness evaluates the number of valid measurements obtained from all the
measurements taken in the project. The intent of this program is to attempt to achieve a goal of 100
percent laboratory completeness. Realizing that under normal conditions this goal may not be
achievable, the laboratory completeness goal for this program is 90 percent.

For this project no sample results were rejected, and all were deemed valid (with some data validation
qualifiers) based on method and laboratory acceptance criteria. Some sample dilutions occurred due to
elevated analyte concentrations and were not evaluated for usability.

OVERALL COMPLETENESS
SDG # Sample Results # Unacceptable # Acceptable % Acceptable
25E0391 159 0 159 100.0%
25H0329 225 0 225 100.0%
Overall 384 0 384 100.0%

Completeness Assessment

100% of collected samples were deemed valid based on independent data validation. Completeness for
the project is considered acceptable and under control.
Comparability

Comparability is a qualitative parameter expressing the confidence with which one data set may be
compared to another. Data sets will be compared only when precision and accuracy meet the specified
acceptance criteria established in this section. Samples will be collected, and analytical results will be
reported according to standard procedures and methods to ensure comparability with other similar data
and results. The comparability goal will be achieved by following the SAP and the RAP, and the specific
procedures contained therein, and by collecting and analyzing representative samples, specifying
analysis by similar analytical procedures with comparable reporting limits and by reporting analytical
results in appropriate and consistent units.

Field Data Comparability

Comparability is dependent upon the proper design of the sampling program and will be satisfied by
ensuring that the SAP and RAP are followed and that proper sampling procedures are used.

For this project, field QC included sample duplicates only.

Data Quality Summary AQS, Inc.

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Laboratory Data Comparability

Analytical data will be considered comparable when similar sampling and analytical methods are used
and documented. Similar QA objectives will be used throughout the project to ensure comparability. At
the discretion of the Utah DERR, split samples may be collected for submittal to a third-party analytical
laboratory to assist in evaluation of comparability. The frequency at which split samples are collected
and analyzed will be specified by the Utah DERR following the receipt and approval of individual work
plans for the project.

For this project, both laboratories used standard analytical methods and standard units of measure.
Reporting limits were consistent except when high analyte concentrations required sample dilution.

Comparability Assessment

Comparability for the project is considered acceptable and under control.
Sensitivity

Sensitivity is the capability of a method or instrument to discriminate between measurement
response(s) representing differing levels of the variable of interest. The analytical laboratory, as part of
their standard operating procedures, follows published, approved analytical methods which validate the
methods including an evaluation of sensitivity, precision, and accuracy to ensure that the equipment can
operate properly prior to sample analysis. Wasatch will review the laboratory detection and/or
reporting limits to verify these limits are below applicable screening levels.

Reporting limits used by the laboratory were typical for the methods used and it is assumed that these
limits meet project requirements. All samples were run undiluted, at normal laboratory reporting levels.

Sensitivity Assessment

Sensitivity for the project is considered acceptable and under control.