DERR-2025-000251

Limited Site Investigation Report
First Step House
237 East 800 South
Salt Lake City, Salt Lake County, Utah
February 28, 2024 | Terracon Project No. 61247015
Prepared for:
First Step House of Salt Lake City Utah Company
201 South Main Street, Suite 2000
Salt Lake City, Utah 84111
6952 High Tech Drive, Suite B
Midvale, Utah 84047
P [phone]
Terracon.com
Facilities | Environmental | Geotechnical | Materials i
February 28, 2024
First Step House of Salt Lake City UT
440 South 500 East
Salt Lake City, Utah 84102
c/o Kathy McCabe
Align Complete Real Estate Services
[e-mail]
Attn: Mr. Shawn M. McMillen
P: [phone] x2114
E:[e-mail]
Re:Limited Site Investigation
First Step House
273 East 800 South
Salt Lake City, Utah
Terracon Project No. 61247015
Dear Mr. McMillen:
Terracon is pleased to provide this report regarding the Limited Site Investigation (LSI)
activities conducted at the above-referenced site. Terracon performed the LSI pursuant to our
proposal P61247015, dated January 22, 2024.
As fully detailed in this LSI report, the LSI results suggest that soils and groundwater
currently present on the site contain localized concentrations of petroleum hydrocarbons that
exceed regulatory screening levels. Terracon’s professional opinion is that these hydrocarbon
contaminants should be addressed prior to or concurrent with redevelopment of the site,
which may include soil excavation and disposal, groundwater treatment, or site management
to ensure that construction personnel and possible future inhabitants are not exposed to
contamination above regulatory screening levels. Enrollment into a state regulatory program
(i.e. State of Utah Voluntary Cleanup Program [VCP]) may also be considered.
We appreciate the opportunity to have performed these services for you. Please contact our
office at [phone] if you have questions regarding this information or if we can
provide any other services.
Sincerely,
Terracon Consultants, Inc.
Andrew S. Turner Daniel Dean
Project Manager Authorized Project Reviewer
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials ii
Executive Summary
This LSI was performed in general accordance with the Scope of Services outlined in the
Terracon Consultants, Inc. (Terracon) Proposal No. P61247015 dated January 22, 2024. A
total of four soil borings were advanced at the site to evaluate the historically known use of
the site as a gasoline service station identified as a Recognized Environmental Condition
(REC) in the Terracon Phase I Environmental Site Assessment (Phase I ESA—Project No.
61237405) dated January 22, 2024. Additionally, two sub-slab vapor pins were installed
within the current on-site building. Soil, groundwater, and soil gas samples were collected
and analyzed in accordance with the procedures outlined in Section 3.
A summary of our “Findings, Conclusions, and Recommendations” is provided below. It
should be recognized that details of the Limited Site Investigation were not included or fully
developed in these sections, and the report must be read in its entirety for a comprehensive
understanding of the items contained herein.
Findings
The lithology encountered at the site consisted of predominantly silt and clay to a depth of
at least 15 feet below ground surface (bgs). Groundwater was encountered in each of the
borings between approximately 10 and 11 feet bgs. Fill, consisting of mostly gravel and
sand, was present in each boring to depths ranging from approximately 2.0 to 5.8 feet bgs.
Soils from each of the borings were field-screened using a photoionization detector (PID) to
indicate the presence of volatile organic compounds (VOCs). Elevated PID readings above
background were recorded at borings B-3 and B-4, with the highest reading generally near
the soil/groundwater interface.
Soil and groundwater samples from the borings were analyzed at the laboratory for total
petroleum hydrocarbons (TPH) in the gasoline (GRO) and diesel (DRO) ranges, total
recoverable petroleum hydrocarbons (TRPH), and volatile organic compounds (VOCs). Soil
gas samples were analyzed for VOCs. Each analyte was compared to the applicable
regulatory screening levels, which included the United States Environmental Protection
Agency (EPA) Residential and Industrial Regional Screening Levels (RSLs), EPA Maximum
Contaminant Levels (MCLs), EPA Vapor Intrusion Screening Levels (VISLs), the Utah
Department of Environmental Quality (UDEQ), Underground Storage Tank (UST) program
Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1), and the Utah
Groundwater Quality Standards (UGWQS).
Concentrations of TPH-DRO and TRPH were reported above regulatory screening levels in
the soil and/or groundwater samples from one or more of the borings during this
investigation. Based upon the location and nature of these exceedances, this is consistent
with a historical release of petroleum hydrocarbons from a previous fueling station located
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials iii
at the site. Sub-slab soil gas samples collected from within the current building do not
indicate a vapor intrusion issue.
Conclusions
Based on field observations and analytical sample results, the site does appear to have been
impacted by a release associated with the REC (historic fueling center) identified in the
Phase I ESA. Both field observations and laboratory soil and groundwater sample results at
the site indicate such a release, and TPH-DRO and TRPH have reported concentrations
above the State of Utah screening levels (ISLs and Tier 1).
Recommendations
The Scope of the LSI was intended to assess the presence or absence of environmental
impacts based upon the information developed during the project. The scope was limited to
that presented in the proposal and as such was not intended to address the magnitude or
extent of environmental impacts.
Based on review of the analytical results from the soil, groundwater, and soil gas samples
collected during this LSI, some isolated areas of the site appear to be affected by a release
of chemicals of concern at concentrations exceeding applicable risk-based screening criteria.
Further investigation may be warranted and this may need to be addressed prior to site
redevelopment.
Terracon recommends that impacted subsurface soil and groundwater in the areas that
exceeded regulatory screening levels be investigated and addressed during any future
redevelopment activities. This may include the excavation and disposal of soil within the
impacted area (B-1), treatment and/or disposal of the impacted groundwater, and/or proper
site management to ensure that impacts do not pose a risk to future workers or inhabitants
of the site. Proper procedures should be followed with respect to worker health and safety,
and any impacted soil or groundwater encountered should be properly characterized,
treated and/or disposed in accordance with applicable local, state, or federal regulations.
Enrollment into a state regulatory program (i.e. State of Utah Voluntary Cleanup Program
[VCP]) may also be considered.
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials iv
Table Of Contents
Executive Summary ................................................................................. ii
Findings ........................................................................................................... ii
Conclusions ..................................................................................................... iii
Recommendations ............................................................................................. iii
1.0 Site Description and Background Information .......................................... 1
1.1 Standard Of Care ...................................................................................... 1
1.2 Additional Scope Limitations ......................................................................... 1
1.3 Reliance ................................................................................................. 2
2.0 Scope of Services ........................................................................... 2
3.0 Field Investigation ........................................................................... 3
3.1 Safety and Subsurface Utilities ...................................................................... 3
3.2 Media Sampling Discussion ......................................................................... 3
3.3 Geophysical Survey ................................................................................... 4
3.4 Field Procedures....................................................................................... 4
3.5 Site Restoration ........................................................................................ 6
3.6 Investigation Derived Waste ......................................................................... 6
4.0 Field Investigation Results ................................................................. 6
4.1 Geology/Hydrogeology ............................................................................... 6
4.2 Field Screening ........................................................................................ 6
5.0 Laboratory Analytical Results .............................................................. 6
5.1 Comparative Data Standards ........................................................................ 6
5.2 Quality Assurance/Quality Control .................................................................. 7
5.3 Soil Analytical Results ................................................................................ 7
5.4 Groundwater Analytical Results ..................................................................... 8
5.5 Soil Gas Analytical Results .......................................................................... 8
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials v
Appendices
Appendix A Exhibits
Exhibit 1 Topographic Site Overview
Exhibit 2 Soil Boring and Soil Gas Sampling Locations
Exhibit 3 Petroleum Hydrocarbon Exceedances in Soil
Exhibit 4 Petroleum Hydrocarbon Exceedances in Groundwater
Appendix B Tables
Table 1 VOCs and Petroleum Hydrocarbons in Soil
Table 2 VOCs and Petroleum Hydrocarbons in Groundwater
Table 3 VOCs in Soil Gas
Appendix C Soil Boring Logs
Appendix D Laboratory Analytical Report and Chain-of-Custody
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 1
1.0 Site Description and Background
Information
Site Name First Step House
Site Location/Address 273 East 800 South, Salt Lake City, Salt Lake County,
Utah
General Site Description
The site is an approximately 0.64-acre tract of land on
one parcel that contains a 8,930 square-foot building with
a basement, detached garage, and associated parking lot.
The site is currently occupied by the Disabled American
Veterans organization. The proposed future development
of the site is an apartment complex.
A Phase I Environmental Site Assessment (Phase I ESA) conducted on the subject site by
Terracon (January 23, 2024, Terracon Project No. 61237405) identified a Recognized
Environmental Condition (REC) associated with a historical fueling center and automotive
repair facility located at the site. Based on the lack of regulatory records or documentation
and the time frame that the station was in operation, the potential release of petroleum
hydrocarbons or other hazardous substances to the environment associated with this facility
was identified as a REC.
A Topographic Map showing the site location is included as Exhibit 1 and a Site Diagram
indicating the soil boring and sub-slab soil vapor locations is included as Exhibit 2 in
Appendix A.
1.1 Standard Of Care
Terracon’s services were performed in a manner consistent with generally accepted
practices of the profession undertaken in similar studies in the same geographical area
during the same time. Terracon makes no warranties, express or implied, regarding the
findings, conclusions, or recommendations. Terracon does not warrant the work of
laboratories, regulatory agencies, or other third parties supplying information used in the
preparation of the report. These services were performed in accordance with the Scope of
Services agreed with First Step House of Salt Lake City Utah, our client, as reflected in our
proposal and were not intended to be in strict conformance with ASTM E1903-19.
1.2 Additional Scope Limitations
Findings, conclusions, and recommendations resulting from these services are based upon
information derived from the on-site activities and other services performed under this
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 2
Scope of Services; such information is subject to change over time. Certain indicators of the
presence of hazardous substances, petroleum products, or other constituents may have
been latent, inaccessible, unobservable, nondetectable, or not present during these
services. We cannot represent that the site contains no hazardous substances, toxic
materials, petroleum products, or other latent conditions beyond those identified during this
LSI. Subsurface conditions may vary from those encountered at specific borings or wells or
during other surveys, tests, assessments, investigations, or exploratory services. The data,
interpretations, findings, and our recommendations are based solely upon data obtained at
the time and within the scope of these services.
1.3 Reliance
This report has been prepared for the exclusive use of First Step House of Salt Lake City
Utah and any authorization for use or reliance by any other party (except a governmental
entity having jurisdiction over the site) is prohibited without the express written
authorization of First Step House of Salt Lake City Utah and Terracon. Any unauthorized
distribution or reuse is at First Step House of Salt Lake City Utah’s sole risk.
Notwithstanding the foregoing, reliance by authorized parties will be subject to the terms,
conditions, and limitations stated in the proposal, this report, and Terracon’s contract with
First Step House of Salt Lake City Utah. The limitation of liability defined in the terms and
conditions is the aggregate limit of Terracon’s liability to First Step House of Salt Lake City
Utah and all relying parties unless otherwise agreed in writing.
2.0 Scope of Services
This LSI was undertaken in response to the results of our Phase I ESA report dated January
23, 2024 (Terracon Project No. 61237405) which identified the following RECs:
ESA REC No. 1
There was a former fueling center and automotive repair facility on-site
between 1959 and 1981. No regulatory records were identified for the
former fueling center. Based on the time frame that the service station
was in operation and the lack of closure records, there is a likelihood of
a release to the environment, which is considered a REC.
The objective of the LSI was to evaluate the presence of chemicals of concern associated
with the REC identified by the Phase I ESA.
This LSI report presents data from field activities that included the advancement of borings
and installation of sub-slab vapor points for the collection and analysis of soil, groundwater,
and soil gas samples for chemical analysis. The activities were conducted to assess potential
impacts to environmental media from a release related to the former fueling center located
at the site.
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 3
Sampling and Analytical Program
REC/AEC Test Hole
Designation
Total
Depth (ft)
Soil
Analysis
Groundwater
Analysis
Soil Gas
Analysis
Historical on-
site fueling
center
B-1 through
B-4 and SV-1
and SV-2
15
TPH-DRO,
TPH-GRO,
TRPH, VOCs
TPH-DRO,
TPH-GRO,
TRPH, VOCs
VOCs
EPA = United States Environmental Protection Agency; SW-846 analytical methods
TPH-DRO = total petroleum hydrocarbons gasoline range organics by EPA Method 8015
TPH-GRO = total petroleum hydrocarbons gasoline range organics by EPA Method 8260
TRPH = total recoverable petroleum hydrocarbons by EPA Method 9071/1664
VOCs = volatile organic compounds by EPA Method 8260, soil gas analysis by EPA Method TO-15
3.0 Field Investigation
3.1 Safety and Subsurface Utilities
Terracon is committed to the safety of all its employees. As such, and in accordance with
our Incident and Injury Free® safety goals, Terracon conducted the fieldwork under a site-
specific health and safety plan. The plan identified site-specific job hazards and proper pre-
task planning procedures. Work was performed using EPA Level D work attire consisting of a
hard hat, high-visibility vest, safety glasses, protective gloves, and protective footwear.
Terracon contacted 811 and requested location and markings for public subsurface utilities
before commencing intrusive activities at the site.
3.2 Media Sampling Discussion
A total of four soil borings and two sub-slab soil vapor points were installed at the site
(Exhibit 2 in Appendix A). The soil borings were advanced to an approximate depth of 15
feet below ground surface (bgs) for the collection of soil and groundwater samples. The
borings were placed at strategic locations around the building to evaluate the potential
impacts from a possible historical release identified by the Phase I ESA. The sub-slab vapor
points were installed within the current building.
Soil and groundwater samples were collected in laboratory-provided containers, properly
labeled, and placed on ice in a cooler for transportation to the laboratory. The sub-slab soil
gas samples were not placed on ice per laboratory instructions. The samples and completed
chain-of-custody forms were relinquished under chain of custody procedures to Pace
Analytical National Center for Testing & Innovation (Pace), a Utah-certified laboratory.
Samples were submitted for analysis on standard turnaround time basis. The samples were
analyzed using standard EPA or ASTM test methods, as detailed in Section 2.0.
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 4
Subsurface soil and groundwater samples were analyzed for the following: VOCs (including
benzene, toluene, ethylbenzene, total xylenes, naphthalene, and methyl tert-butyl ether),
TPH-GRO, TPH-DRO, and TRPH. The sub-slab soil gas samples were analyzed for VOCs.
3.3 Geophysical Survey
Prior to sampling, a Terracon representative mobilized to the site with a geophysical
professional to perform the geophysical survey at the proposed boring locations. The
geophysical professional utilized ground-penetrating radar (GPR) and magnetometer survey
methods to perform the survey. The purpose of the survey was to attempt to assess the
presence of unmarked subsurface utilities or other related anomalies that may be present at
the boring locations. The geophysical survey consisted of scanning the areas of interest first
with an electromagnetic (EM) instrument followed by a GPR scan to further evaluate EM
anomalies, if present. The geophysical survey identified some possible utilities in the
immediate area of a few of the planned boring locations. These locations were moved
slightly to avoid these utilities, but this is not expected to affect the results or conclusions of
this report.
3.4 Field Procedures
Soil borings were advanced with direct-push (“Geoprobe”) drilling equipment. The
mechanized drilling services were performed by a Utah-licensed well driller, Direct Push
Services. Terracon environmental personnel selected the boring locations, visually observed
the drilling activities, logged the soil borings, and collected field samples.
Sampling equipment was decontaminated using an Alconox® detergent wash and potable
water rinse prior to commencement of the project and between the collection of each
sample. Drilling equipment was cleaned using a high-pressure washer prior to beginning the
project and before beginning each soil boring.
The two sub-slab vapor pins were installed inside the building by drilling a 5/8-inch
diameter hole through the concrete floor of the building to a depth of approximately two to
three inches into the underlying soils. The sampling points were completed with a Vapor
PinTM assembly consisting of a brass barb fitting with a silicone sleeve to seal the 5/8-inch
diameter hole. Sub-slab vapor samples were collected following Terracon’s Standard
Operating Procedures for soil vapor sampling. Sub-slab vapor pins were allowed to
equilibrate overnight prior to sample collection. One soil vapor sample was collected from
each sub-slab vapor pin. The samples were collected in laboratory supplied, individually-
certified clean 1-liter SUMMA canisters with a flow regulator that restricts flow to no more
than 200 milliliters per minute.
Terracon conducted leak detection tests at each sample location. The first test was to
evaluate the sample train for leaks by conducting a shut-in test on the sample train after it
was fully assembled. The shut-in test was conducted by closing the valve to the vapor pin
and applying a vacuum to the closed sample train while monitoring the pressure on an inline
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 5
vacuum gauge for one minute. If the sample train held a constant vacuum pressure, the
sample train was deemed to be airtight. Following the shut-in test, the air that was
evacuated from the sample train to generate the vacuum was purged.
A second leak detection test was conducted by introducing helium gas at a concentration
between 15 and 20 percent into a sampling shroud placed over the vapor pin. If helium was
measured in the sampling train at a concentration of greater than 7,500 parts per million
(ppm), it indicated there was potential breakthrough in the sampling train and all
connections were re-examined, tightened where necessary, and re-tested. Three helium
tests were conducted at each location prior to sampling.
Field Screening
During advancement of the soil borings, soils were continuously cored in 5-foot intervals
and logged by Terracon to document subsurface soil types, color, relative moisture content,
and sensory evidence of environmental impacts. The soil samples were also field-screened
using a Portable Photoionization Detector (PID)—Mini Rae 2000 PID equipped with a 10.6 eV
ultraviolet lamp to evaluate the potential presence of total VOCs. The unit measures total
VOCs in sample headspace air relative to parts per million calibration gas equivalents in air
and identified simply as “PPM” on soil boring logs. This is not a direct equivalent
measurement of total VOCs, a specific contaminant in headspace air, or sample media in
parts per million analytical units produced by a laboratory. PID readings are qualitative
measurements used to guide sampling in the field.
Laboratory Sample Collection
Soil
The proposed Scope of Services stated that one soil sample would be collected at each
boring from the most significantly impacted depth interval based on PID readings and/or
other field observations indicative of soil contamination (odors, staining, etc.), or the top of
the apparent groundwater table. Field screening utilizing the PID and observations did
identify some potential VOC impacts in selected borings. In these borings, the soil samples
were taken at the zone exhibiting the highest PID readings, which generally corresponded to
the soil/groundwater interface. The remaining soil samples from the other borings were
taken from the soil/groundwater table interface.
Groundwater
One groundwater sample was collected from each boring from the 10-15 feet bgs depth
interval using a temporary slotted (screened) stainless steel piezometer and a peristaltic
pump.
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 6
3.5 Site Restoration
At the completion of field activities, Terracon abandoned borings B-1 through B-4 in general
accordance with state regulations and guidelines. The borings were backfilled with bentonite
chips to near surface grade, hydrated, and then completed with surface materials to match
the surrounding surface. Sub-slab soil vapor points were backfilled with quick-setting
concrete to match the surrounding surface.
3.6 Investigation Derived Waste
Soil cuttings and purged groundwater were disposed of onto the ground at the site.
4.0 Field Investigation Results
4.1 Geology/Hydrogeology
The lithology encountered at the site generally consisted of silt and clay to approximately 15
feet bgs. Groundwater was encountered in each of the borings between approximately 10
and 11 feet bgs. Groundwater flow direction was not evaluated as part of this investigation,
but is presumed to generally follow site topography and flow generally to the southwest.
4.2 Field Screening
The field screening results are presented on the boring logs found in Appendix C. Elevated
PID readings were detected in screened soils from borings B-3 and B-4.
5.0 Laboratory Analytical Results
The laboratory analytical report and chain-of-custody records are attached in Appendix D.
The following sections describe the results of the testing. The detection of an analyte at a
concentration above a screening level does not necessarily indicate an adverse impact to
human health or the environment; however, an exceedance of a screening level may
indicate that additional investigation or action is warranted.
5.1 Comparative Data Standards
Soil sample analytes were compared to applicable regulatory screening levels, including the
EPA Residential and Industrial Regional Screening Levels (RSLs), and the Utah Department
of Environmental Quality (UDEQ) Initial Screening Levels (ISLs) and risk-based Tier 1
Screening Levels (Tier 1).
Groundwater sample analytes were compared to the applicable regulatory screening levels,
which included the EPA Maximum Contaminant Levels (MCLs), EPA Vapor Intrusion
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 7
Screening Levels (VISLs), Utah ISLs and Tier 1 Screening Levels, and Utah Groundwater
Quality Standards (UGWQS).
Sub-slab soil gas samples were compared to the EPA VISLs.
5.2 Quality Assurance/Quality Control
Refer to Appendix D for the laboratory analytical report. The laboratory report contains
additional information regarding the sample preparation, analysis, and results that should
be considered in the interpretation of the data.
Quality assurance/quality control (QA/QC) of laboratory analytical data was maintained
using the following methods and procedures:
■established reporting limits (RLs) with the laboratory that meet project Data Quality
Objectives (DQOs)
■laboratory QA/QC controls, such as laboratory control sample (LCS), laboratory
control sample duplicate (LCSD), matrix spike (MS), and matrix spike duplicate
(MSD)
■collection of samples in laboratory-provided containers
■chain-of-custody protocols
■storage and transportation of samples in secured, chilled containers (soil and
groundwater)
■decontamination of reusable sampling equipment
Constituent concentrations qualified with J-flag (J), if present, indicate the constituent was
detected at a concentration above the laboratory method detection limit (MDL), but below
the laboratory reporting limit (RL). Constituent concentrations qualified with a J-flag are
considered estimated values. Additionally, the laboratory conducts a QC of the data sets to
ensure data meets data quality objectives, and certain qualifiers (e.g., B, J3, J4) are
assigned to specific data as needed. Terracon reviewed the laboratory reports and did not
identify any QC standards substantially out of the control limits and/or that would negatively
impact the data. Individual datum has been notated by the laboratory for specific criteria, as
indicated in the reports attached as Appendix D.
5.3 Soil Analytical Results
The soil analytical data and corresponding screening levels are summarized in Table 1 in
Appendix B. Sample locations are shown on Exhibit 2 (Appendix A).
TRPH and TPH-DRO was reported above the Utah ISLs but below the Tier 1 screening levels
at 11 feet bgs in boring B-1 (northwest portion of the current building). Soil exceedances
Limited Site Investigation Report
First Step House | Salt Lake City, Utah
February 28, 2024 | Terracon Project No. 61247015
Facilities | Environmental | Geotechnical | Materials 8
are shown on Exhibit 3 (Appendix A). Petroleum hydrocarbons and several VOCs were
detected in estimated concentrations (J value) well below regulatory screening levels in the
other soil samples collected.
5.4 Groundwater Analytical Results
The groundwater analytical data and corresponding screening levels are summarized in
Table 2 in Appendix B. Sample locations are shown on Exhibit 2 (Appendix A).
TPH-DRO was detected above the Utah Tier 1 Screening Level in groundwater from boring
B-1. Additionally, TRPH was detected above the Utah Tier 1 Screening Level in groundwater
from boring B-4 (southeast portion of the site). Groundwater exceedances are shown on
Exhibit 4 (Appendix A). Petroleum hydrocarbons were detected in groundwater from the
other borings at estimated (J value) concentrations well below screening levels. No VOCs
were detected above laboratory reporting limits.
5.5 Soil Gas Analytical Results
Several VOCs were detected in soil gas in both sub-slab soil vapor points. However, all of
these analytes had concentrations well below regulatory screening levels (VISLs).
Appendix A
Exhibits
Appendix B
Tables
Table 1 - VOCs and Petroleum Hydrocarbons in Soil
First Step House - 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units RSL
Residential
RSL
Industrial ISL Tier 1 Result Q Result Q Result Q Result Q
TPH-GRO 8260B mg/kg NE NE 150 1500 <20.3 <0.627 <0.624 <0.640
TPH-DRO 8015 mg/kg NE NE 500 5000 804 <5.01 2.41 J <5.12
TRPH 9071B mg/kg NE NE 1000 10000 2530 50 J 74.2 J 87.9 J
ACETONE 8260B mg/kg 70000 1100000 NE NE <2.03 <0.0627 <0.0624 <0.0640
ACRYLONITRILE 8260B mg/kg 0.25 1.1 NE NE <0.406 <0.0125 <0.0125 <0.0128
BENZENE 8260B mg/kg 1.2 5.1 0.2 0.9 <0.0406 0.000855 J 0.00175 0.00095 J
BROMOBENZENE 8260B mg/kg 290 1800 NE NE <0.0406 <0.00125 <0.00125 <0.00128
BROMODICHLOROMETHANE 8260B mg/kg 0.29 1.3 NE NE <0.0406 <0.00125 <0.00125 <0.00128
BROMOFORM 8260B mg/kg 19 86 NE NE <0.0406 <0.00125 <0.00125 <0.00128
BROMOMETHANE 8260B mg/kg 6.8 30 NE NE <0.203 <0.00627 <0.00624 <0.00640
N-BUTYLBENZENE 8260B mg/kg 3900 58000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
SEC-BUTYLBENZENE 8260B mg/kg 7800 120000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
TERT-BUTYLBENZENE 8260B mg/kg 7800 120000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
CARBON TETRACHLORIDE 8260B mg/kg 0.65 2.9 NE NE <0.0406 <0.00125 J3 J4 <0.00125 J3 J4 <0.00128 J3 J4
CHLOROBENZENE 8260B mg/kg 280 1300 NE NE <0.0406 <0.00125 <0.00125 <0.00128
CHLORODIBROMOMETHANE 8260B mg/kg 8.3 39 NE NE <0.0406 <0.00125 <0.00125 <0.00128
CHLOROETHANE 8260B mg/kg 5400 23000 NE NE <0.203 <0.00627 <0.00624 <0.00640
CHLOROFORM 8260B mg/kg 0.32 1.4 NE NE <0.203 <0.00627 <0.00624 <0.00640
CHLOROMETHANE 8260B mg/kg 110 460 NE NE <0.101 <0.00313 <0.00312 <0.00320
2-CHLOROTOLUENE 8260B mg/kg 1600 23000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
4-CHLOROTOLUENE 8260B mg/kg 1600 23000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,2-DIBROMO-3-CHLOROPROPANE 8260B mg/kg 0.0053 0.064 NE NE <0.203 <0.00627 <0.00624 <0.00640
1,2-DIBROMOETHANE 8260B mg/kg 0.036 0.16 NE NE <0.0406 <0.00125 <0.00125 <0.00128
DIBROMOMETHANE 8260B mg/kg 24 99 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,2-DICHLOROBENZENE 8260B mg/kg 1800 9300 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,3-DICHLOROBENZENE 8260B mg/kg NE NE NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,4-DICHLOROBENZENE 8260B mg/kg 2.6 11 NE NE <0.0406 <0.00125 <0.00125 <0.00128
DICHLORODIFLUOROMETHANE 8260B mg/kg 87 370 NE NE <0.203 <0.00627 <0.00624 <0.00640
1,1-DICHLOROETHANE 8260B mg/kg 3.6 16 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,2-DICHLOROETHANE 8260B mg/kg 0.46 2 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,1-DICHLOROETHENE 8260B mg/kg 230 1000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
CIS-1,2-DICHLOROETHENE 8260B mg/kg 63 370 NE NE <0.0406 <0.00125 <0.00125 <0.00128
TRANS-1,2-DICHLOROETHENE 8260B mg/kg 70 300 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,2-DICHLOROPROPANE 8260B mg/kg 2.5 11 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,1-DICHLOROPROPENE 8260B mg/kg NE NE NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,3-DICHLOROPROPANE 8260B mg/kg 1600 23000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
CIS-1,3-DICHLOROPROPENE 8260B mg/kg NE NE NE NE <0.0406 J4 <0.00125 <0.00125 <0.00128
TRANS-1,3-DICHLOROPROPENE 8260B mg/kg NE NE NE NE <0.0406 <0.00125 <0.00125 <0.00128
2,2-DICHLOROPROPANE 8260B mg/kg NE NE NE NE <0.0406 <0.00125 J3 <0.00125 J3 <0.00128 J3
DI-ISOPROPYL ETHER 8260B mg/kg 2200 9400 NE NE <0.0406 <0.00125 <0.00125 <0.00128
ETHYLBENZENE 8260B mg/kg 5.8 25 5 23 <0.0406 <0.00125 <0.00125 <0.00128
HEXACHLORO-1,3-BUTADIENE 8260B mg/kg 1.2 5.3 NE NE <0.0406 <0.00125 <0.00125 <0.00128
ISOPROPYLBENZENE 8260B mg/kg 1900 9900 NE NE <0.0406 <0.00125 <0.00125 <0.00128
P-ISOPROPYLTOLUENE 8260B mg/kg NE NE NE NE <0.0406 <0.00125 <0.00125 <0.00128
2-BUTANONE (MEK)8260B mg/kg 27000 190000 NE NE <0.406 <0.0125 <0.0125 <0.0128
Lab Sample ID L1704701-01 L1704701-02
Date Collected 2/8/2024 2/8/2024 2/8/2024 2/8/2024
Client Sample ID
L1704701-03 L1704701-04
B-1-11 B-2-10.5 B-3-9.5 B-4-11
Page 1 of 2
Table 1 - VOCs and Petroleum Hydrocarbons in Soil
First Step House - 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units RSL
Residential
RSL
Industrial ISL Tier 1 Result Q Result Q Result Q Result Q
Lab Sample ID L1704701-01 L1704701-02
Date Collected 2/8/2024 2/8/2024 2/8/2024 2/8/2024
Client Sample ID
L1704701-03 L1704701-04
B-1-11 B-2-10.5 B-3-9.5 B-4-11
METHYLENE CHLORIDE 8260B mg/kg 57 1000 NE NE <0.203 <0.00627 <0.00624 <0.00640
4-METHYL-2-PENTANONE (MIBK)8260B mg/kg 33000 140000 NE NE <0.406 <0.0125 J3 <0.0125 J3 <0.0128 J3
METHYL TERT-BUTYL ETHER 8260B mg/kg 47 210 0.3 0.3 <0.0406 <0.00125 <0.00125 <0.00128
NAPHTHALENE 8260B mg/kg 2 8.6 51 51 <0.203 <0.00627 <0.00624 <0.00640
N-PROPYLBENZENE 8260B mg/kg 3800 24000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
STYRENE 8260B mg/kg 6000 35000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,1,1,2-TETRACHLOROETHANE 8260B mg/kg 2 8.8 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,1,2,2-TETRACHLOROETHANE 8260B mg/kg 0.6 2.7 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,1,2-TRICHLOROTRIFLUOROETHANE 8260B mg/kg 6700 28000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
TETRACHLOROETHENE 8260B mg/kg 24 100 NE NE <0.0406 <0.00125 <0.00125 <0.00128
TOLUENE 8260B mg/kg 4900 47000 9 25 <0.203 <0.00627 0.00166 J <0.00640
1,2,3-TRICHLOROBENZENE 8260B mg/kg 63 930 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,2,4-TRICHLOROBENZENE 8260B mg/kg 24 110 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,1,1-TRICHLOROETHANE 8260B mg/kg 8100 36000 NE NE <0.0406 <0.00125 J3 J4 <0.00125 J3 J4 <0.00128 J3 J4
1,1,2-TRICHLOROETHANE 8260B mg/kg 1.1 5 NE NE <0.0406 <0.00125 <0.00125 <0.00128
TRICHLOROETHENE 8260B mg/kg 0.94 6 NE NE <0.0406 <0.00125 <0.00125 <0.00128
TRICHLOROFLUOROMETHANE 8260B mg/kg 23000 350000 NE NE <0.203 <0.00627 <0.00624 <0.00640
1,2,3-TRICHLOROPROPANE 8260B mg/kg 0.0051 0.11 NE NE <0.101 <0.00313 <0.00312 <0.00320
1,2,4-TRIMETHYLBENZENE 8260B mg/kg 300 1800 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,2,3-TRIMETHYLBENZENE 8260B mg/kg 340 2000 NE NE <0.0406 <0.00125 <0.00125 <0.00128
1,3,5-TRIMETHYLBENZENE 8260B mg/kg 270 1500 NE NE <0.0406 <0.00125 <0.00125 <0.00128
VINYL CHLORIDE 8260B mg/kg 0.059 1.7 NE NE <0.0406 <0.00125 <0.00125 <0.00128
XYLENES, TOTAL 8260B mg/kg 580 2500 142 142 <0.122 <0.00376 0.000628 J <0.00384
Qualifiers (Q):
J4: The sample matrix interfered with the ability to make any accurate determination; spike value is high.
NE:Not Established.<:Less than Reported Detection Limit (RDL).
mg/kg:Milligrams per kilogram.
Color shaded value exceeds screening level.
J: The identification of the analyte is acceptable; the reported value is an estimate.
J3: The associated batch QC was outside the established quality control range for
EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential
(Res.) and industrial (Ind.) properties (November 2023; TR=1E-06; THQ=1.0).
Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for
petroleum releases at leaking underground storage tank sites
Bold value exceeds Method Detection Limit (MDL).
Page 2 of 2
Table 2 - VOCs and Petroleum Hydrocarbons in Groundwater
First Step House - 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units MCL VISL
Residential
VISL
Commercial ISL Tier 1 UGWQS Result Q Result Q Result Q Result Q
TPH-GRO 8260B mg/l NE NE NE 1 10 NE <0.500 <0.500 <0.500 <0.500
TPH-DRO 3511/8015 mg/l NE NE NE 1 10 NE 10.7 0.0537 B J 0.442 <0.200
TRPH 1664A mg/l NE NE NE 10 10 NE <5.68 1.3 J 2.47 J 43.3 J
ACETONE 8260B mg/l NE 22500 94500 NE NE NE <0.0500 <0.0500 <0.0500 <0.0500
ACROLEIN 8260B mg/l NE 0.00418 0.0176 NE NE NE <0.0500 J4 <0.0500 J4 <0.0500 J4 <0.0500 J4
ACRYLONITRILE 8260B mg/l NE 0.00732 0.032 NE NE NE <0.0100 <0.0100 <0.0100 <0.0100
BENZENE 8260B mg/l 0.005 0.00159 0.00693 0.005 0.3 0.005 <0.00100 <0.00100 <0.00100 <0.00100
BROMOBENZENE 8260B mg/l NE 0.62 2.6 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
BROMODICHLOROMETHANE 8260B mg/l 0.08 0.000876 0.00382 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
BROMOFORM 8260B mg/l 0.08 0.117 0.51 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
BROMOMETHANE 8260B mg/l NE 0.0174 0.073 NE NE NE <0.00500 <0.00500 <0.00500 <0.00500
N-BUTYLBENZENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
SEC-BUTYLBENZENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
TERT-BUTYLBENZENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
CARBON TETRACHLORIDE 8260B mg/l 0.005 0.000415 0.00181 NE NE 0.005 <0.00100 <0.00100 <0.00100 <0.00100
CHLOROBENZENE 8260B mg/l 0.1 0.41 1.72 NE NE 0.1 <0.00100 <0.00100 <0.00100 <0.00100
CHLORODIBROMOMETHANE 8260B mg/l 0.08 NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
CHLOROETHANE 8260B mg/l NE 23 96.5 NE NE NE <0.00500 <0.00500 <0.00500 <0.00500
2-CHLOROETHYL VINYL ETHER 8260B mg/l NE NE NE NE NE NE <0.0500 <0.0500 <0.0500 <0.0500
CHLOROFORM 8260B mg/l 0.08 0.000814 0.00355 NE NE NE <0.00500 <0.00500 <0.00500 <0.00500
CHLOROMETHANE 8260B mg/l NE 0.26 1.09 NE NE NE <0.00250 <0.00250 <0.00250 <0.00250
2-CHLOROTOLUENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
4-CHLOROTOLUENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,2-DIBROMO-3-CHLOROPROPANE 8260B mg/l 0.0002 0.0000281 0.00034 NE NE 0.0002 <0.00500 <0.00500 <0.00500 <0.00500
1,2-DIBROMOETHANE 8260B mg/l 0.00005 0.000176 0.000769 NE NE 0.00005 <0.00100 <0.00100 <0.00100 <0.00100
DIBROMOMETHANE 8260B mg/l NE 0.124 0.521 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,2-DICHLOROBENZENE 8260B mg/l 0.6 2.66 11.2 NE NE 0.6 <0.00100 <0.00100 <0.00100 <0.00100
1,3-DICHLOROBENZENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,4-DICHLOROBENZENE 8260B mg/l 0.075 0.00259 0.0113 NE NE 0.075 <0.00100 <0.00100 <0.00100 <0.00100
DICHLORODIFLUOROMETHANE 8260B mg/l NE 0.00744 0.0312 NE NE NE <0.00500 <0.00500 <0.00500 <0.00500
1,1-DICHLOROETHANE 8260B mg/l NE 0.00764 0.0334 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,2-DICHLOROETHANE 8260B mg/l 0.005 0.00224 0.00978 NE NE 0.005 <0.00100 <0.00100 <0.00100 <0.00100
1,1-DICHLOROETHENE 8260B mg/l 0.007 0.195 0.821 NE NE 0.007 <0.00100 <0.00100 <0.00100 <0.00100
CIS-1,2-DICHLOROETHENE 8260B mg/l 0.07 NE NE NE NE 0.07 <0.00100 <0.00100 <0.00100 <0.00100
TRANS-1,2-DICHLOROETHENE 8260B mg/l 0.1 0.109 0.457 NE NE 0.1 <0.00100 <0.00100 <0.00100 <0.00100
1,2-DICHLOROPROPANE 8260B mg/l 0.005 0.00658 0.0287 NE NE 0.005 <0.00100 <0.00100 <0.00100 <0.00100
1,1-DICHLOROPROPENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,3-DICHLOROPROPANE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
CIS-1,3-DICHLOROPROPENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
Lab Sample ID
Client Sample ID B-4
Date Collected 01/24/2024 01/24/2024 01/23/2024 01/24/2024
L1704701-05 L1704701-06 L1704701-07 L1704701-08
B-1 B-2 B-3
Page 1 of 3
Table 2 - VOCs and Petroleum Hydrocarbons in Groundwater
First Step House - 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units MCL VISL
Residential
VISL
Commercial ISL Tier 1 UGWQS Result Q Result Q Result Q Result Q
Lab Sample ID
Client Sample ID B-4
Date Collected 01/24/2024 01/24/2024 01/23/2024 01/24/2024
L1704701-05 L1704701-06 L1704701-07 L1704701-08
B-1 B-2 B-3
TRANS-1,3-DICHLOROPROPENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
2,2-DICHLOROPROPANE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
DI-ISOPROPYL ETHER 8260B mg/l NE 6.97 29.3 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
ETHYLBENZENE 8260B mg/l 0.7 0.00349 0.0152 0.7 4 0.7 <0.00100 <0.00100 <0.00100 <0.00100
HEXACHLORO-1,3-BUTADIENE 8260B mg/l NE 0.000303 0.00132 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
ISOPROPYLBENZENE 8260B mg/l NE 0.887 3.73 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
P-ISOPROPYLTOLUENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
2-BUTANONE (MEK)8260B mg/l NE 2240 9410 NE NE NE <0.0100 <0.0100 <0.0100 <0.0100
METHYLENE CHLORIDE 8260B mg/l 0.005 0.763 9.23 NE NE 0.005 <0.00500 <0.00500 <0.00500 <0.00500
4-METHYL-2-PENTANONE (MIBK)8260B mg/l NE 555 2330 NE NE NE <0.0100 <0.0100 <0.0100 <0.0100
METHYL TERT-BUTYL ETHER 8260B mg/l NE 0.45 1.97 0.2 0.2 NE <0.00100 <0.00100 <0.00100 <0.00100
NAPHTHALENE 8260B mg/l NE 0.00459 0.0201 0.7 0.7 NE <0.00500 <0.00500 <0.00500 <0.00500
N-PROPYLBENZENE 8260B mg/l NE 2.43 10.2 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
STYRENE 8260B mg/l 0.1 9.28 39 NE NE 0.1 <0.00100 <0.00100 <0.00100 <0.00100
1,1,1,2-TETRACHLOROETHANE 8260B mg/l NE 0.00371 0.0162 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,1,2,2-TETRACHLOROETHANE 8260B mg/l NE 0.00323 0.0141 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,1,2-TRICHLOROTRIFLUOROETHANE 8260B mg/l NE 0.242 1.02 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
TETRACHLOROETHENE 8260B mg/l 0.005 0.0149 0.0652 NE NE 0.005 <0.00100 <0.00100 <0.00100 <0.00100
TOLUENE 8260B mg/l 1 19.2 80.7 1 3 1 <0.00100 <0.00100 <0.00100 <0.00100
1,2,3-TRICHLOROBENZENE 8260B mg/l NE NE NE NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,2,4-TRICHLOROBENZENE 8260B mg/l 0.07 0.0359 0.151 NE NE 0.07 <0.00100 <0.00100 <0.00100 <0.00100
1,1,1-TRICHLOROETHANE 8260B mg/l 0.2 7.42 31.1 NE NE 0.2 <0.00100 <0.00100 <0.00100 <0.00100
1,1,2-TRICHLOROETHANE 8260B mg/l 0.005 0.00521 0.0228 NE NE 0.005 <0.00100 <0.00100 <0.00100 <0.00100
TRICHLOROETHENE 8260B mg/l 0.005 0.00119 0.00743 NE NE 0.005 <0.00100 <0.00100 <0.00100 <0.00100
TRICHLOROFLUOROMETHANE 8260B mg/l NE NE NE NE NE NE <0.00500 <0.00500 <0.00500 <0.00500
1,2,3-TRICHLOROPROPANE 8260B mg/l NE 0.0223 0.0937 NE NE NE <0.00250 <0.00250 <0.00250 <0.00250
1,2,4-TRIMETHYLBENZENE 8260B mg/l NE 0.248 1.04 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
1,2,3-TRIMETHYLBENZENE 8260B mg/l NE 0.351 1.47 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
Page 2 of 3
Table 2 - VOCs and Petroleum Hydrocarbons in Groundwater
First Step House - 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units MCL VISL
Residential
VISL
Commercial ISL Tier 1 UGWQS Result Q Result Q Result Q Result Q
Lab Sample ID
Client Sample ID B-4
Date Collected 01/24/2024 01/24/2024 01/23/2024 01/24/2024
L1704701-05 L1704701-06 L1704701-07 L1704701-08
B-1 B-2 B-3
1,3,5-TRIMETHYLBENZENE 8260B mg/l NE 0.175 0.733 NE NE NE <0.00100 <0.00100 <0.00100 <0.00100
VINYL CHLORIDE 8260B mg/l 0.002 0.000147 0.00245 NE NE 0.002 <0.00100 <0.00100 <0.00100 <0.00100
XYLENES, TOTAL 8260B mg/l 10 0.385 1.62 10 10 10 <0.00300 <0.00300 <0.00300 <0.00300
J4: The sample matrix interfered with the ability to make any accurate determination; spike value is high.
J: The identification of the analyte is acceptable; the reported value is an estimate.
B: The same analyte is found in the associated blank.
NE:Not Established.<:Less than Reported Detection Limit (RDL).mg/l:Milligrams per liter.
Bold value exceeds Method Detection Limit (MDL).Color shaded value exceeds screening level.
EPA VISL: Target Groundwater Concentration (TGC) Vapor Intrusion Screening Level (VISL); April 2023.
Qualifiers (Q):
EPA RSL: Environmental Protection Agency Regional Screening level for drinking water (April 2023).
EPA MCL: Environmental Protection Agency Maximum Contaminant Level for drinking water (May 2023).
UDEQ: Utah Department of Environmental Quality's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for
petroleum hydrocarbons in groundwater at underground storage tank sites.
UGWQS:Utah Ground Water Quality Standards.
Page 3 of 3
Table 3 - VOCs in Soil Gas
First Step House, 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units VISL
Residential
VISL
Commercial Result Q Result Q
ACETONE TO-15 µg/m3 1070000 4510000 23.6 56.3
ALLYL CHLORIDE TO-15 µg/m3 15.6 68.1 <0.626 <0.626
BENZENE TO-15 µg/m3 12 52.4 <0.639 <0.639
BENZYL CHLORIDE TO-15 µg/m3 1.91 8.34 <1.04 <1.04
BROMODICHLOROMETHANE TO-15 µg/m3 2.53 11 <1.34 <1.34
BROMOFORM TO-15 µg/m3 85.1 372 <6.21 <6.21
BROMOMETHANE TO-15 µg/m3 174 730 <0.776 <0.776
1,3-BUTADIENE TO-15 µg/m3 3.12 13.6 <4.43 <4.43
CARBON DISULFIDE TO-15 µg/m3 24300 102000 1.75 1.54
CARBON TETRACHLORIDE TO-15 µg/m3 15.6 68.1 <1.26 <1.26
CHLOROBENZENE TO-15 µg/m3 1740 7300 <0.924 <0.924
CHLOROETHANE TO-15 µg/m3 348000 1460000 <0.528 <0.528
CHLOROFORM TO-15 µg/m3 4.07 17.8 <0.973 <0.973
CHLOROMETHANE TO-15 µg/m3 3130 13100 0.539 0.853
2-CHLOROTOLUENE TO-15 µg/m3 NE NE <1.03 <1.03
CYCLOHEXANE TO-15 µg/m3 209000 876000 <0.689 <0.689
CHLORODIBROMOMETHANE TO-15 µg/m3 NE NE <1.70 <1.70
1,2-DIBROMOETHANE TO-15 µg/m3 0.156 0.681 <1.54 <1.54
1,2-DICHLOROBENZENE TO-15 µg/m3 6950 29200 <1.20 <1.20
1,3-DICHLOROBENZENE TO-15 µg/m3 NE NE <1.20 <1.20
1,4-DICHLOROBENZENE TO-15 µg/m3 8.51 37.2 <1.20 <1.20
1,2-DICHLOROETHANE TO-15 µg/m3 3.6 15.7 <0.810 <0.810
1,1-DICHLOROETHANE TO-15 µg/m3 58.5 256 <0.802 3.37
1,1-DICHLOROETHENE TO-15 µg/m3 6950 29200 <0.793 <0.793
CIS-1,2-DICHLOROETHENE TO-15 µg/m3 NE NE <0.793 <0.793
TRANS-1,2-DICHLOROETHENE TO-15 µg/m3 NE NE <0.793 <0.793
1,2-DICHLOROPROPANE TO-15 µg/m3 25.3 110 <0.924 <0.924
CIS-1,3-DICHLOROPROPENE TO-15 µg/m3 NE NE <0.908 <0.908
TRANS-1,3-DICHLOROPROPENE TO-15 µg/m3 NE NE <0.908 <0.908
1,4-DIOXANE TO-15 µg/m3 18.7 81.8 <2.27 <2.27
ETHANOL TO-15 µg/m3 NE NE 173 187
ETHYLBENZENE TO-15 µg/m3 37.4 164 <0.867 1.4
4-ETHYLTOLUENE TO-15 µg/m3 NE NE <0.982 <0.982
TRICHLOROFLUOROMETHANE TO-15 µg/m3 NE NE 1.43 2.74
Date Collected 1/25/2024 1/25/2024
Lab Sample ID L1705083-01 L1705083-02
Client Sample ID SV-1 SV-2
Table 3 - VOCs in Soil Gas
First Step House, 273 East 800 South, Salt Lake City, Utah
Terracon Project No. 61247015
Analyte Method Units VISL
Residential
VISL
Commercial Result Q Result Q
Date Collected 1/25/2024 1/25/2024
Lab Sample ID L1705083-01 L1705083-02
Client Sample ID SV-1 SV-2
DICHLORODIFLUOROMETHANE TO-15 µg/m3 3480 14600 2.43 2.7
1,1,2-TRICHLOROTRIFLUOROETHANETO-15 µg/m3 174000 730000 <1.53 <1.53
1,2-DICHLOROTETRAFLUOROETHANETO-15 µg/m3 NE NE <1.40 <1.40
HEPTANE TO-15 µg/m3 13900 58400 <0.818 0.945
HEXACHLORO-1,3-BUTADIENE TO-15 µg/m3 4.25 18.6 <6.73 <6.73
N-HEXANE TO-15 µg/m3 24300 102000 2.89 <2.22
ISOPROPYLBENZENE TO-15 µg/m3 13900 58400 <0.983 <0.983
METHYLENE CHLORIDE TO-15 µg/m3 3380 40900 23 2.44
METHYL BUTYL KETONE TO-15 µg/m3 1040 4380 <5.11 <5.11
2-BUTANONE (MEK)TO-15 µg/m3 174000 730000 <3.69 5.66
4-METHYL-2-PENTANONE (MIBK)TO-15 µg/m3 104000 438000 <5.12 <5.12
METHYL METHACRYLATE TO-15 µg/m3 24300 102000 <0.819 <0.819
METHYL TERT-BUTYL ETHER TO-15 µg/m3 360 1570 <0.721 <0.721
NAPHTHALENE TO-15 µg/m3 2.75 12 <3.30 <3.30
2-PROPANOL TO-15 µg/m3 6950 29200 25.6 18.4
PROPENE TO-15 µg/m3 104000 438000 <2.15 3.79
STYRENE TO-15 µg/m3 34800 146000 <0.851 <0.851
1,1,2,2-TETRACHLOROETHANE TO-15 µg/m3 1.61 7.05 <1.37 <1.37
TETRACHLOROETHENE TO-15 µg/m3 360 1570 <1.36 8.01
TETRAHYDROFURAN TO-15 µg/m3 69500 292000 <0.590 <0.590
TOLUENE TO-15 µg/m3 174000 730000 2.88 3.2
1,2,4-TRICHLOROBENZENE TO-15 µg/m3 69.5 292 <4.66 <4.66
1,1,1-TRICHLOROETHANE TO-15 µg/m3 174000 730000 <1.09 3.2
1,1,2-TRICHLOROETHANE TO-15 µg/m3 5.85 25.6 <1.09 <1.09
TRICHLOROETHENE TO-15 µg/m3 15.9 99.7 <1.07 <1.07
1,2,4-TRIMETHYLBENZENE TO-15 µg/m3 2090 8760 <0.982 <0.982
1,3,5-TRIMETHYLBENZENE TO-15 µg/m3 2090 8760 <0.982 <0.982
2,2,4-TRIMETHYLPENTANE TO-15 µg/m3 NE NE <0.934 <0.934
VINYL CHLORIDE TO-15 µg/m3 5.59 92.9 <0.511 <0.511
VINYL BROMIDE TO-15 µg/m3 2.92 12.8 <0.875 <0.875
VINYL ACETATE TO-15 µg/m3 6950 29200 <2.22 <2.22
XYLENES, TOTAL TO-15 µg/m3 3480 14600 3.55 5.95
M&P-XYLENE TO-15 µg/m3 3480 14600 2.67 4.47
O-XYLENE TO-15 µg/m3 3480 14600 0.871 1.46
NE:Not Established.<:Less than Reported Detection Limit (RDL).µg/m3:micrograms per cubic meter.
Bold value exceeds Method Detection Limit (MDL).
Qualifiers (Q):
EPA VISL: Environmental Protection Agency Target Sub-Slab and Near-source Soil Gas Concentration
(TSSNSGC) Vapor Intrusion Screening Level (VISL); November 2023.
Appendix C
Soil Boring Logs
0.3
2.0
4.2
6.0
10.5
12.5
15.0
Sample B-1-11 at 11'
ASPHALT, Approximately 3 inches asphalt.
FILL - POORLY GRADED GRAVEL WITH CLAY AND SAND (GP), olive brown, slightly moist, fine subangular gravel, fine
to coarse-grained subrounded sand, variable medium plasticity clay.
LEAN CLAY (CL), light brownish gray, moist, soft, medium plasticity.
SILT (ML), olive brown, moist, soft, non-plastic, some fine sand with SM intervals.
LEAN CLAY (CL), light brownish gray, moist, soft, medium plasticity, some silty intervals, fin caliche nodules, slight odor.
LEAN CLAY (CL), light brownish gray, moist to wet, soft, medium plasticity, some silt with sandy silt locally, thin sandy wet
lenses to 1 inch with fine to coarse-grained sand.
LEAN CLAY (CL), light brownish gray, moist, soft to firm, low to medium plasticity, fine wet reddish brown to yellowish
brown SM interbeds.
Boring Terminated at 15 Feet
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.5
1.2
0.6
0.0
0.0
GR
A
P
H
I
C

L
O
G
See Exhibit 2LOCATION
DEPTH
The stratification lines represent the approximate transition between differing soil types and/or rock types;
in-situ these transitions may be gradual or may occur at different depths than shown.
273 East 800 South
Salt Lake City, Utah
SITE:
Page 1 of 1
Advancement Method:
Direct Push
Abandonment Method:
Hydrated Bentonite
Notes:
Project No.: 61247015
Drill Rig: Geoprobe 6620 DT
Boring Started: 02-08-2024
BORING LOG NO. B-1
First Step House of Salt Lake City Utah
Driller: DPS
Boring Completed: 02-08-2024
Exhibit:
See Appendices for description of laboratory
procedures and additional data (if any).
CLIENT:
See Appendices for description of field procedures.
See Appendices for explanation of symbols and
abbreviations.
PROJECT: First Step House
B-1
6949 S High Tech Dr Ste 100
Midvale, UT
MATERIAL DESCRIPTION
TH
I
S

B
O
R
I
N
G

L
O
G

I
S

N
O
T

V
A
L
I
D

I
F

S
E
P
A
R
A
T
E
D

F
R
O
M

O
R
I
G
I
N
A
L

R
E
P
O
R
T
.

E
N
V
I
R
O
N
M
E
N
T
A
L

S
M
A
R
T

L
O
G

B
O
R
I
N
G

L
O
G
S

-

F
I
R
S
T

S
T
E
P
.
G
P
J

T
E
R
R
A
C
O
N
_
D
A
T
A
T
E
M
P
L
A
T
E
.
G
D
T

2
/
1
2
/
2
4
WA
T
E
R

L
E
V
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L
OB
S
E
R
V
A
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I
O
N
S
SA
M
P
L
E

T
Y
P
E
DE
P
T
H

(
f
t
)
5
10
15
OV
A
/
P
I
D
(p
p
m
)
Groundwater encountered 11 ft.
WATER LEVEL OBSERVATIONS
80
90
100
RE
C
O
V
E
R
Y

(
%
)
0.3
3.0
5.8
8.0
10.5
11.8
15.0
Sample B-2-10.5 at 10.5'
TOPSOIL, Approximately 3 inches topsoil.
FILL - SANDY SILT (ML), olive brown to reddish brown, moist, soft, non-plastic, some sandy silt zones and isolated fine
gravels, minor brick/debris, minor clay.
FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP), olive brown to light brownish gray, slightly moist, fine
subangular gravel, fine to coarse-grained subrounded sand, some clay, apparent concrete pieces.
SILT (ML), light brownish gray, slightly moist, soft, non-plastic, some fine sand and clay.
LEAN CLAY (CL), light brownish gray, moist, soft, medium plasticity, some silt top of zone, caliche nodules.
SANDY SILT (ML), light brownish gray to reddish brown, wet, soft, non-plastic, fine sand, some clay, SM locally.
LEAN CLAY (CL), light brownish gray, moist, soft to firm, low to medium plasticity, thin SM and sandy silt interbeds with fine
sand.
Boring Terminated at 15 Feet
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
GR
A
P
H
I
C

L
O
G
See Exhibit 2LOCATION
DEPTH
The stratification lines represent the approximate transition between differing soil types and/or rock types;
in-situ these transitions may be gradual or may occur at different depths than shown.
273 East 800 South
Salt Lake City, Utah
SITE:
Page 1 of 1
Advancement Method:
Direct Push
Abandonment Method:
Hydrated Bentonite
Notes:
Project No.: 61247015
Drill Rig: Geoprobe 6620 DT
Boring Started: 02-08-2024
BORING LOG NO. B-2
First Step House of Salt Lake City Utah
Driller: DPS
Boring Completed: 02-08-2024
Exhibit:
See Appendices for description of laboratory
procedures and additional data (if any).
CLIENT:
See Appendices for description of field procedures.
See Appendices for explanation of symbols and
abbreviations.
PROJECT: First Step House
B-2
6949 S High Tech Dr Ste 100
Midvale, UT
MATERIAL DESCRIPTION
TH
I
S

B
O
R
I
N
G

L
O
G

I
S

N
O
T

V
A
L
I
D

I
F

S
E
P
A
R
A
T
E
D

F
R
O
M

O
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I
G
I
N
A
L

R
E
P
O
R
T
.

E
N
V
I
R
O
N
M
E
N
T
A
L

S
M
A
R
T

L
O
G

B
O
R
I
N
G

L
O
G
S

-

F
I
R
S
T

S
T
E
P
.
G
P
J

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R
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A
C
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N
_
D
A
T
A
T
E
M
P
L
A
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E
.
G
D
T

2
/
1
2
/
2
4
WA
T
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R

L
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V
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L
OB
S
E
R
V
A
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I
O
N
S
SA
M
P
L
E

T
Y
P
E
DE
P
T
H

(
f
t
)
5
10
15
OV
A
/
P
I
D
(p
p
m
)
Groundwater encountered 10.5 ft.
WATER LEVEL OBSERVATIONS
70
100
100
RE
C
O
V
E
R
Y

(
%
)
0.2
2.5
4.0
5.0
10.0
11.3
15.0
Sample B-3-9.5 at 9.5'
TOPSOIL, Approximately 2 inches topsoil.
FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP), olive brown, moist, fine subangular gravel, fine to
coarse-grained subrounded sand, some apparent brick/debris.
FILL - SILTY SAND (SM), light brownish gray, moist, fine sand, minor coarser sand.
FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP), olive brown, moist, fine subangular gravel, fine to
coarse-grained subrounded sand, some apparent brick/debris.
SILT (ML), olive brown, moist, soft, non-plastic, some clay and fine sand, low recovery.
SANDY SILT (ML), light brownish gray, wet, soft, non-plastic, fine sand, some thin SM interbeds, minor clay.
LEAN CLAY (CL), light brownish gray, moist to wet, soft to firm, medium plasticity, some thin silty lenses.
Boring Terminated at 15 Feet
0.2
4.3
1.3
1.0
1.1
7.6
8.7
10.1
18.1
18.8
14.3
7.2
8.1
13.0
1.3
GR
A
P
H
I
C

L
O
G
See Exhibit 2LOCATION
DEPTH
The stratification lines represent the approximate transition between differing soil types and/or rock types;
in-situ these transitions may be gradual or may occur at different depths than shown.
273 East 800 South
Salt Lake City, Utah
SITE:
Page 1 of 1
Advancement Method:
Direct Push
Abandonment Method:
Hydrated Bentonite
Notes:
Project No.: 61247015
Drill Rig: Geoprobe 6620 DT
Boring Started: 02-08-2024
BORING LOG NO. B-3
First Step House of Salt Lake City Utah
Driller: DPS
Boring Completed: 02-08-2024
Exhibit:
See Appendices for description of laboratory
procedures and additional data (if any).
CLIENT:
See Appendices for description of field procedures.
See Appendices for explanation of symbols and
abbreviations.
PROJECT: First Step House
B-3
6949 S High Tech Dr Ste 100
Midvale, UT
MATERIAL DESCRIPTION
TH
I
S

B
O
R
I
N
G

L
O
G

I
S

N
O
T

V
A
L
I
D

I
F

S
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P
A
R
A
T
E
D

F
R
O
M

O
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I
G
I
N
A
L

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P
O
R
T
.

E
N
V
I
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O
N
M
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T
A
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S
M
A
R
T

L
O
G

B
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R
I
N
G

L
O
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S

-

F
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T

S
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P
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G
P
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G
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2
/
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/
2
4
WA
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L
OB
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N
S
SA
M
P
L
E

T
Y
P
E
DE
P
T
H

(
f
t
)
5
10
15
OV
A
/
P
I
D
(p
p
m
)
Groundwater encountered 10 ft.
WATER LEVEL OBSERVATIONS
40
30
70
RE
C
O
V
E
R
Y

(
%
)
2.6
7.3
11.0
12.8
15.0
Sample B-4-11 at 11'
FILL - POORLY GRADED GRAVEL WITH SAND (GP), olive brown to reddish brown, moist, fine subangular gravel, fine to
coarse-grained subrounded sand, apparent brick/debris, SP with gravel locally.
SILT (ML), olive brown, moist, soft, non-plastic, minor clay and find sand, increasing clay wiht depth.
Light brownish gray starting 5.5 ft.
LEAN CLAY (CL), light brownish gray, moist to wet, soft, medium plasticity, caliche nodules.
SANDY SILT (ML), light brownish gray, wet, soft, mon-plastic, fine sand, some wet SP zones to 2 inches.
LEAN CLAY (CL), light brownish gray, moist, soft to firm, medium plasticity, some thin reddish brown silty lenses.
Boring Terminated at 15 Feet
3.4
2.9
35.3
3.4
2.1
2.9
44.1
22.7
18.5
11.6
31.8
62.2
5.1
15.7
9.1
GR
A
P
H
I
C

L
O
G
See Exhibit 2LOCATION
DEPTH
The stratification lines represent the approximate transition between differing soil types and/or rock types;
in-situ these transitions may be gradual or may occur at different depths than shown.
273 East 800 South
Salt Lake City, Utah
SITE:
Page 1 of 1
Advancement Method:
Direct Push
Abandonment Method:
Hydrated Bentonite
Notes:
Project No.: 61247015
Drill Rig: Geoprobe 6620 DT
Boring Started: 02-08-2024
BORING LOG NO. B-4
First Step House of Salt Lake City Utah
Driller: DPS
Boring Completed: 02-08-2024
Exhibit:
See Appendices for description of laboratory
procedures and additional data (if any).
CLIENT:
See Appendices for description of field procedures.
See Appendices for explanation of symbols and
abbreviations.
PROJECT: First Step House
B-4
6949 S High Tech Dr Ste 100
Midvale, UT
MATERIAL DESCRIPTION
TH
I
S

B
O
R
I
N
G

L
O
G

I
S

N
O
T

V
A
L
I
D

I
F

S
E
P
A
R
A
T
E
D

F
R
O
M

O
R
I
G
I
N
A
L

R
E
P
O
R
T
.

E
N
V
I
R
O
N
M
E
N
T
A
L

S
M
A
R
T

L
O
G

B
O
R
I
N
G

L
O
G
S

-

F
I
R
S
T

S
T
E
P
.
G
P
J

T
E
R
R
A
C
O
N
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D
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T
A
T
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M
P
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A
T
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.
G
D
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2
/
1
2
/
2
4
WA
T
E
R

L
E
V
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L
OB
S
E
R
V
A
T
I
O
N
S
SA
M
P
L
E

T
Y
P
E
DE
P
T
H

(
f
t
)
5
10
15
OV
A
/
P
I
D
(p
p
m
)
Groundwater encountered 11 ft.
WATER LEVEL OBSERVATIONS
80
80
70
RE
C
O
V
E
R
Y

(
%
)
Appendix D
Laboratory Analytical Report and Chain-of-Custody
ANALYTICAL REPORT
February 20, 2024
Terracon - Salt Lake City, UT
Sample Delivery Group:L1704701
Samples Received:02/12/2024
Project Number:61247015
Description:First Step
Report To:Andrew Turner
6949 South High Tech Drive
Midvale, UT 84047
Entire Report Reviewed By:
February 20, 2024
[Preliminary Report]
Chris Ward
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 1 of 42
February 20, 2024
Jason Romer
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 1 of 42
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 5
Sr: Sample Results 7
B1-11 L1704701-01 7
B-2-10.5 L1704701-02 9
B-3-9.5 L1704701-03 11
B-4-11 L1704701-04 13
B-1 L1704701-05 15
B-2 L1704701-06 17
B-3 L1704701-07 19
B-4 L1704701-08 21
Qc: Quality Control Summary 23
Total Solids by Method 2540 G-2011 23
Wet Chemistry by Method 1664A 24
Wet Chemistry by Method 9071B 25
Volatile Organic Compounds (GC/MS) by Method 8260B 26
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 38
Semi-Volatile Organic Compounds (GC) by Method 8015 39
Gl: Glossary of Terms 40
Al: Accreditations & Locations 41
Sc: Sample Chain of Custody 42
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 2 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 2 of 42
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
B1-11 L1704701-01 Solid 02/08/24 08:50 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2224775 1 02/13/24 09:58 02/13/24 10:07 KDW Mt. Juliet, TN
Wet Chemistry by Method 9071B WG2226740 1 02/14/24 12:25 02/15/24 17:04 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2227797 25 02/13/24 08:46 02/16/24 16:39 JAH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2225022 25 02/13/24 16:38 02/14/24 18:06 JAS Mt. Juliet, TN
Collected by Collected date/time Received date/time
B-2-10.5 L1704701-02 Solid 02/08/24 09:40 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2224775 1 02/13/24 09:58 02/13/24 10:07 KDW Mt. Juliet, TN
Wet Chemistry by Method 9071B WG2226740 1 02/14/24 12:25 02/15/24 17:04 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2227177 1 02/13/24 08:46 02/15/24 14:22 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2225022 1 02/13/24 16:38 02/14/24 16:15 JAS Mt. Juliet, TN
Collected by Collected date/time Received date/time
B-3-9.5 L1704701-03 Solid 02/08/24 11:55 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2224775 1 02/13/24 09:58 02/13/24 10:07 KDW Mt. Juliet, TN
Wet Chemistry by Method 9071B WG2226740 1 02/14/24 12:25 02/15/24 17:04 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2227177 1 02/13/24 08:46 02/15/24 14:43 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2225022 1 02/13/24 16:38 02/14/24 16:27 JAS Mt. Juliet, TN
Collected by Collected date/time Received date/time
B-4-11 L1704701-04 Solid 02/08/24 10:50 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2224775 1 02/13/24 09:58 02/13/24 10:07 KDW Mt. Juliet, TN
Wet Chemistry by Method 9071B WG2226740 1 02/14/24 12:25 02/15/24 17:04 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2227177 1 02/13/24 08:46 02/15/24 15:04 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2225022 1 02/13/24 16:38 02/14/24 16:27 JAS Mt. Juliet, TN
Collected by Collected date/time Received date/time
B-1 L1704701-05 GW 02/08/24 09:05 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2226978 1 02/15/24 02:05 02/15/24 18:03 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2226411 1 02/14/24 21:38 02/14/24 21:38 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2225046 2 02/13/24 17:18 02/14/24 18:02 KAP Mt. Juliet, TN
Collected by Collected date/time Received date/time
B-2 L1704701-06 GW 02/08/24 09:50 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2226978 1 02/15/24 02:05 02/15/24 18:03 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2226411 1 02/14/24 21:58 02/14/24 21:58 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2225046 2 02/13/24 17:18 02/14/24 18:22 KAP Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
B-3 L1704701-07 GW 02/08/24 12:05 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2226978 1 02/15/24 02:05 02/15/24 18:03 WAW Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2226411 1 02/14/24 22:19 02/14/24 22:19 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2225046 2 02/13/24 17:18 02/14/24 18:43 KAP Mt. Juliet, TN
Collected by Collected date/time Received date/time
B-4 L1704701-08 GW 02/08/24 11:00 02/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2226978 10 02/15/24 02:05 02/15/24 18:03 CLG Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2226411 1 02/14/24 22:39 02/14/24 22:39 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2225046 2 02/13/24 17:18 02/14/24 19:03 KAP Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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CASE NARRATIVE
Unless qualified or notated within the narrative below, all sample aliquots were received at the correct
temperature, in the proper containers, with the appropriate preservatives, and within method specified
holding times. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental
samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality
Control are within established criteria except where addressed in this case narrative, a
non-conformance form or properly qualified within the sample results. By my digital signature below, I
affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the
potential to affect the quality of the data have been identified by the laboratory, and no information or
data have been knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Chris Ward
Project Manager
Sample Delivery Group (SDG) Narrative
pH outside of method requirement.
Batch Method Lab Sample ID
WG2226411 8260B L1704701-05, 06
Wet Chemistry by Method 1664A
The sample matrix interfered with the ability to make any accurate determination; spike value is low.
Batch Lab Sample ID Analytes
WG2226978 (MS) R4034395-4, (MSD) R4034395-5 TPH - Oil & Grease
Volatile Organic Compounds (GC/MS) by Method 8260B
The associated batch QC was above the established quality control range for accuracy.
Batch Lab Sample ID Analytes
WG2226411 (LCS) R4034071-1, L1704701-05, 06,
07, 08
Acrolein
WG2227177 (LCS) R4034634-1, L1704701-02, 03,
04
1,1,1-Trichloroethane and Carbon tetrachloride
The associated batch QC was below the established quality control range for accuracy.
Batch Lab Sample ID Analytes
WG2227797 (LCS) R4035729-1, L1704701-01 cis-1,3-Dichloropropene
The associated batch QC was outside the established quality control range for precision.
Batch Lab Sample ID Analytes
WG2227177 (LCSD) R4034634-2, L1704701-02, 03,
04
1,1,1-Trichloroethane, 2,2-Dichloropropane, 4-Methyl-2-pentanone (MIBK) and Carbon
tetrachloride
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
The same analyte is found in the associated blank.
Batch Analyte Lab Sample ID
WG2225046 TPH (GC/FID) High Fraction L1704701-06
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Jason Romer
Project Manager
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CASE NARRATIVE
Semi-Volatile Organic Compounds (GC) by Method 8015
Surrogate recovery cannot be used for control limit evaluation due to dilution.
Batch Analyte Lab Sample ID
WG2225022 o-Terphenyl L1704701-01
The sample matrix interfered with the ability to make any accurate determination; spike value is low.
Batch Lab Sample ID Analytes
WG2225022 (MSD) R4033986-4 TPH (GC/FID) High Fraction
The associated batch QC was outside the established quality control range for precision.
Batch Lab Sample ID Analytes
WG2225022 (MSD) R4033986-4 TPH (GC/FID) High Fraction
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 01
L1704701
B1-11
Collected date/time: 02/08/24 08:50
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 76.3 1 02/13/2024 10:07 WG2224775
Wet Chemistry by Method 9071B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH - Oil & Grease 2530 43.3 131 1 02/15/2024 17:04 WG2226740
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction U 7.43 20.3 25 02/16/2024 16:39 WG2227797
Acetone U 0.840 2.03 25 02/16/2024 16:39 WG2227797
Acrylonitrile U 0.0819 0.406 25 02/16/2024 16:39 WG2227797
Benzene U 0.0152 0.0406 25 02/16/2024 16:39 WG2227797
Bromobenzene U 0.0112 0.0406 25 02/16/2024 16:39 WG2227797
Bromodichloromethane U 0.0294 0.0406 25 02/16/2024 16:39 WG2227797
Bromoform U 0.0172 0.0406 25 02/16/2024 16:39 WG2227797
Bromomethane U 0.0475 0.203 25 02/16/2024 16:39 WG2227797
n-Butylbenzene U 0.0105 0.0406 25 02/16/2024 16:39 WG2227797
sec-Butylbenzene U 0.00816 0.0406 25 02/16/2024 16:39 WG2227797
tert-Butylbenzene U 0.00836 0.0406 25 02/16/2024 16:39 WG2227797
Carbon tetrachloride U 0.0101 0.0406 25 02/16/2024 16:39 WG2227797
Chlorobenzene U 0.00779 0.0406 25 02/16/2024 16:39 WG2227797
Chlorodibromomethane U 0.00909 0.0406 25 02/16/2024 16:39 WG2227797
Chloroethane U 0.0406 0.203 25 02/16/2024 16:39 WG2227797
Chloroform U 0.0419 0.203 25 02/16/2024 16:39 WG2227797
Chloromethane U 0.0264 0.101 25 02/16/2024 16:39 WG2227797
2-Chlorotoluene U 0.00913 0.0406 25 02/16/2024 16:39 WG2227797
4-Chlorotoluene U 0.0281 0.0406 25 02/16/2024 16:39 WG2227797
1,2-Dibromo-3-Chloropropane U 0.0771 0.203 25 02/16/2024 16:39 WG2227797
1,2-Dibromoethane U 0.0101 0.0406 25 02/16/2024 16:39 WG2227797
Dibromomethane U 0.0142 0.0406 25 02/16/2024 16:39 WG2227797
1,2-Dichlorobenzene U 0.0172 0.0406 25 02/16/2024 16:39 WG2227797
1,3-Dichlorobenzene U 0.0243 0.0406 25 02/16/2024 16:39 WG2227797
1,4-Dichlorobenzene U 0.0337 0.0406 25 02/16/2024 16:39 WG2227797
Dichlorodifluoromethane U 0.0116 0.203 25 02/16/2024 16:39 WG2227797
1,1-Dichloroethane U 0.0109 0.0406 25 02/16/2024 16:39 WG2227797
1,2-Dichloroethane U 0.0183 0.0406 25 02/16/2024 16:39 WG2227797
1,1-Dichloroethene U 0.0144 0.0406 25 02/16/2024 16:39 WG2227797
cis-1,2-Dichloroethene U 0.0193 0.0406 25 02/16/2024 16:39 WG2227797
trans-1,2-Dichloroethene U 0.0203 0.0406 25 02/16/2024 16:39 WG2227797
1,2-Dichloropropane U 0.00665 0.0406 25 02/16/2024 16:39 WG2227797
1,1-Dichloropropene U 0.0152 0.0406 25 02/16/2024 16:39 WG2227797
1,3-Dichloropropane U 0.00913 0.0406 25 02/16/2024 16:39 WG2227797
cis-1,3-Dichloropropene U J4 0.0172 0.0406 25 02/16/2024 16:39 WG2227797
trans-1,3-Dichloropropene U 0.0274 0.0406 25 02/16/2024 16:39 WG2227797
2,2-Dichloropropane U 0.0152 0.0406 25 02/16/2024 16:39 WG2227797
Di-isopropyl ether U 0.00897 0.0406 25 02/16/2024 16:39 WG2227797
Ethylbenzene U 0.0122 0.0406 25 02/16/2024 16:39 WG2227797
Hexachloro-1,3-butadiene U 0.0139 0.0406 25 02/16/2024 16:39 WG2227797
Isopropylbenzene U 0.0172 0.0406 25 02/16/2024 16:39 WG2227797
p-Isopropyltoluene U 0.00827 0.0406 25 02/16/2024 16:39 WG2227797
2-Butanone (MEK)U 0.190 0.406 25 02/16/2024 16:39 WG2227797
Methylene Chloride U 0.0406 0.203 25 02/16/2024 16:39 WG2227797
4-Methyl-2-pentanone (MIBK)U 0.0386 0.406 25 02/16/2024 16:39 WG2227797
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 01
L1704701
B1-11
Collected date/time: 02/08/24 08:50
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.0142 0.0406 25 02/16/2024 16:39 WG2227797
Naphthalene U 0.203 0.203 25 02/16/2024 16:39 WG2227797
n-Propylbenzene U 0.00836 0.0406 25 02/16/2024 16:39 WG2227797
Styrene U 0.00905 0.0406 25 02/16/2024 16:39 WG2227797
1,1,1,2-Tetrachloroethane U 0.0120 0.0406 25 02/16/2024 16:39 WG2227797
1,1,2,2-Tetrachloroethane U 0.00936 0.0406 25 02/16/2024 16:39 WG2227797
1,1,2-Trichlorotrifluoroethane U 0.0174 0.0406 25 02/16/2024 16:39 WG2227797
Tetrachloroethene U 0.0132 0.0406 25 02/16/2024 16:39 WG2227797
Toluene U 0.0500 0.203 25 02/16/2024 16:39 WG2227797
1,2,3-Trichlorobenzene U 0.0124 0.0406 25 02/16/2024 16:39 WG2227797
1,2,4-Trichlorobenzene U 0.0157 0.0406 25 02/16/2024 16:39 WG2227797
1,1,1-Trichloroethane U 0.0150 0.0406 25 02/16/2024 16:39 WG2227797
1,1,2-Trichloroethane U 0.0172 0.0406 25 02/16/2024 16:39 WG2227797
Trichloroethene U 0.00811 0.0406 25 02/16/2024 16:39 WG2227797
Trichlorofluoromethane U 0.0144 0.203 25 02/16/2024 16:39 WG2227797
1,2,3-Trichloropropane U 0.00990 0.101 25 02/16/2024 16:39 WG2227797
1,2,4-Trimethylbenzene U 0.00857 0.0406 25 02/16/2024 16:39 WG2227797
1,2,3-Trimethylbenzene U 0.0116 0.0406 25 02/16/2024 16:39 WG2227797
1,3,5-Trimethylbenzene U 0.0108 0.0406 25 02/16/2024 16:39 WG2227797
Vinyl chloride U 0.00917 0.0406 25 02/16/2024 16:39 WG2227797
Xylenes, Total U 0.0203 0.122 25 02/16/2024 16:39 WG2227797
(S) Toluene-d8 102 75.0-131 02/16/2024 16:39 WG2227797
(S) 4-Bromofluorobenzene 101 67.0-138 02/16/2024 16:39 WG2227797
(S) 1,2-Dichloroethane-d4 92.0 70.0-130 02/16/2024 16:39 WG2227797
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/FID) High Fraction 804 25.2 131 25 02/14/2024 18:06 WG2225022
(S) o-Terphenyl 38.2 J7 18.0-148 02/14/2024 18:06 WG2225022
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1704701
B-2-10.5
Collected date/time: 02/08/24 09:40
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 79.8 1 02/13/2024 10:07 WG2224775
Wet Chemistry by Method 9071B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH - Oil & Grease 50.0 J 41.4 125 1 02/15/2024 17:04 WG2226740
Sample Narrative:
L1704701-02 WG2226740: Total Oil&Grease is non-detect. Extract was not processed through silica gel.
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction U 0.229 0.627 1 02/15/2024 14:22 WG2227177
Acetone U 0.0259 0.0627 1 02/15/2024 14:22 WG2227177
Acrylonitrile U 0.00253 0.0125 1 02/15/2024 14:22 WG2227177
Benzene 0.000855 J 0.000470 0.00125 1 02/15/2024 14:22 WG2227177
Bromobenzene U 0.000345 0.00125 1 02/15/2024 14:22 WG2227177
Bromodichloromethane U 0.000909 0.00125 1 02/15/2024 14:22 WG2227177
Bromoform U 0.000532 0.00125 1 02/15/2024 14:22 WG2227177
Bromomethane U 0.00147 0.00627 1 02/15/2024 14:22 WG2227177
n-Butylbenzene U 0.000323 0.00125 1 02/15/2024 14:22 WG2227177
sec-Butylbenzene U 0.000252 0.00125 1 02/15/2024 14:22 WG2227177
tert-Butylbenzene U 0.000258 0.00125 1 02/15/2024 14:22 WG2227177
Carbon tetrachloride U J3 J4 0.000311 0.00125 1 02/15/2024 14:22 WG2227177
Chlorobenzene U 0.000241 0.00125 1 02/15/2024 14:22 WG2227177
Chlorodibromomethane U 0.000281 0.00125 1 02/15/2024 14:22 WG2227177
Chloroethane U 0.00125 0.00627 1 02/15/2024 14:22 WG2227177
Chloroform U 0.00129 0.00627 1 02/15/2024 14:22 WG2227177
Chloromethane U 0.000815 0.00313 1 02/15/2024 14:22 WG2227177
2-Chlorotoluene U 0.000282 0.00125 1 02/15/2024 14:22 WG2227177
4-Chlorotoluene U 0.000866 0.00125 1 02/15/2024 14:22 WG2227177
1,2-Dibromo-3-Chloropropane U 0.00238 0.00627 1 02/15/2024 14:22 WG2227177
1,2-Dibromoethane U 0.000313 0.00125 1 02/15/2024 14:22 WG2227177
Dibromomethane U 0.000439 0.00125 1 02/15/2024 14:22 WG2227177
1,2-Dichlorobenzene U 0.000533 0.00125 1 02/15/2024 14:22 WG2227177
1,3-Dichlorobenzene U 0.000752 0.00125 1 02/15/2024 14:22 WG2227177
1,4-Dichlorobenzene U 0.00104 0.00125 1 02/15/2024 14:22 WG2227177
Dichlorodifluoromethane U 0.000360 0.00627 1 02/15/2024 14:22 WG2227177
1,1-Dichloroethane U 0.000336 0.00125 1 02/15/2024 14:22 WG2227177
1,2-Dichloroethane U 0.000564 0.00125 1 02/15/2024 14:22 WG2227177
1,1-Dichloroethene U 0.000445 0.00125 1 02/15/2024 14:22 WG2227177
cis-1,2-Dichloroethene U 0.000595 0.00125 1 02/15/2024 14:22 WG2227177
trans-1,2-Dichloroethene U 0.000627 0.00125 1 02/15/2024 14:22 WG2227177
1,2-Dichloropropane U 0.000206 0.00125 1 02/15/2024 14:22 WG2227177
1,1-Dichloropropene U 0.000470 0.00125 1 02/15/2024 14:22 WG2227177
1,3-Dichloropropane U 0.000282 0.00125 1 02/15/2024 14:22 WG2227177
cis-1,3-Dichloropropene U 0.000533 0.00125 1 02/15/2024 14:22 WG2227177
trans-1,3-Dichloropropene U 0.000846 0.00125 1 02/15/2024 14:22 WG2227177
2,2-Dichloropropane U J3 0.000470 0.00125 1 02/15/2024 14:22 WG2227177
Di-isopropyl ether U 0.000277 0.00125 1 02/15/2024 14:22 WG2227177
Ethylbenzene U 0.000376 0.00125 1 02/15/2024 14:22 WG2227177
Hexachloro-1,3-butadiene U 0.000429 0.00125 1 02/15/2024 14:22 WG2227177
Isopropylbenzene U 0.000533 0.00125 1 02/15/2024 14:22 WG2227177
p-Isopropyltoluene U 0.000256 0.00125 1 02/15/2024 14:22 WG2227177
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1704701
B-2-10.5
Collected date/time: 02/08/24 09:40
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
2-Butanone (MEK)U 0.00587 0.0125 1 02/15/2024 14:22 WG2227177
Methylene Chloride U 0.00125 0.00627 1 02/15/2024 14:22 WG2227177
4-Methyl-2-pentanone (MIBK)U J3 0.00119 0.0125 1 02/15/2024 14:22 WG2227177
Methyl tert-butyl ether U 0.000439 0.00125 1 02/15/2024 14:22 WG2227177
Naphthalene U 0.00624 0.00627 1 02/15/2024 14:22 WG2227177
n-Propylbenzene U 0.000258 0.00125 1 02/15/2024 14:22 WG2227177
Styrene U 0.000280 0.00125 1 02/15/2024 14:22 WG2227177
1,1,1,2-Tetrachloroethane U 0.000371 0.00125 1 02/15/2024 14:22 WG2227177
1,1,2,2-Tetrachloroethane U 0.000290 0.00125 1 02/15/2024 14:22 WG2227177
1,1,2-Trichlorotrifluoroethane U 0.000534 0.00125 1 02/15/2024 14:22 WG2227177
Tetrachloroethene U 0.000407 0.00125 1 02/15/2024 14:22 WG2227177
Toluene U 0.00154 0.00627 1 02/15/2024 14:22 WG2227177
1,2,3-Trichlorobenzene U 0.000384 0.00125 1 02/15/2024 14:22 WG2227177
1,2,4-Trichlorobenzene U 0.000486 0.00125 1 02/15/2024 14:22 WG2227177
1,1,1-Trichloroethane U J3 J4 0.000464 0.00125 1 02/15/2024 14:22 WG2227177
1,1,2-Trichloroethane U 0.000533 0.00125 1 02/15/2024 14:22 WG2227177
Trichloroethene U 0.000251 0.00125 1 02/15/2024 14:22 WG2227177
Trichlorofluoromethane U 0.000446 0.00627 1 02/15/2024 14:22 WG2227177
1,2,3-Trichloropropane U 0.000306 0.00313 1 02/15/2024 14:22 WG2227177
1,2,4-Trimethylbenzene U 0.000265 0.00125 1 02/15/2024 14:22 WG2227177
1,2,3-Trimethylbenzene U 0.000360 0.00125 1 02/15/2024 14:22 WG2227177
1,3,5-Trimethylbenzene U 0.000333 0.00125 1 02/15/2024 14:22 WG2227177
Vinyl chloride U 0.000283 0.00125 1 02/15/2024 14:22 WG2227177
Xylenes, Total U 0.000627 0.00376 1 02/15/2024 14:22 WG2227177
(S) Toluene-d8 113 75.0-131 02/15/2024 14:22 WG2227177
(S) 4-Bromofluorobenzene 99.0 67.0-138 02/15/2024 14:22 WG2227177
(S) 1,2-Dichloroethane-d4 105 70.0-130 02/15/2024 14:22 WG2227177
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/FID) High Fraction U 0.964 5.01 1 02/14/2024 16:15 WG2225022
(S) o-Terphenyl 48.6 18.0-148 02/14/2024 16:15 WG2225022
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 03
L1704701
B-3-9.5
Collected date/time: 02/08/24 11:55
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 80.1 1 02/13/2024 10:07 WG2224775
Wet Chemistry by Method 9071B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH - Oil & Grease 74.2 J 41.2 125 1 02/15/2024 17:04 WG2226740
Sample Narrative:
L1704701-03 WG2226740: Total Oil&Grease is non-detect. Extract was not processed through silica gel.
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction U 0.228 0.624 1 02/15/2024 14:43 WG2227177
Acetone U 0.0258 0.0624 1 02/15/2024 14:43 WG2227177
Acrylonitrile U 0.00252 0.0125 1 02/15/2024 14:43 WG2227177
Benzene 0.00175 0.000468 0.00125 1 02/15/2024 14:43 WG2227177
Bromobenzene U 0.000343 0.00125 1 02/15/2024 14:43 WG2227177
Bromodichloromethane U 0.000905 0.00125 1 02/15/2024 14:43 WG2227177
Bromoform U 0.000529 0.00125 1 02/15/2024 14:43 WG2227177
Bromomethane U 0.00146 0.00624 1 02/15/2024 14:43 WG2227177
n-Butylbenzene U 0.000322 0.00125 1 02/15/2024 14:43 WG2227177
sec-Butylbenzene U 0.000251 0.00125 1 02/15/2024 14:43 WG2227177
tert-Butylbenzene U 0.000257 0.00125 1 02/15/2024 14:43 WG2227177
Carbon tetrachloride U J3 J4 0.000310 0.00125 1 02/15/2024 14:43 WG2227177
Chlorobenzene U 0.000240 0.00125 1 02/15/2024 14:43 WG2227177
Chlorodibromomethane U 0.000280 0.00125 1 02/15/2024 14:43 WG2227177
Chloroethane U 0.00125 0.00624 1 02/15/2024 14:43 WG2227177
Chloroform U 0.00129 0.00624 1 02/15/2024 14:43 WG2227177
Chloromethane U 0.000811 0.00312 1 02/15/2024 14:43 WG2227177
2-Chlorotoluene U 0.000281 0.00125 1 02/15/2024 14:43 WG2227177
4-Chlorotoluene U 0.000863 0.00125 1 02/15/2024 14:43 WG2227177
1,2-Dibromo-3-Chloropropane U 0.00237 0.00624 1 02/15/2024 14:43 WG2227177
1,2-Dibromoethane U 0.000312 0.00125 1 02/15/2024 14:43 WG2227177
Dibromomethane U 0.000437 0.00125 1 02/15/2024 14:43 WG2227177
1,2-Dichlorobenzene U 0.000531 0.00125 1 02/15/2024 14:43 WG2227177
1,3-Dichlorobenzene U 0.000749 0.00125 1 02/15/2024 14:43 WG2227177
1,4-Dichlorobenzene U 0.00104 0.00125 1 02/15/2024 14:43 WG2227177
Dichlorodifluoromethane U 0.000358 0.00624 1 02/15/2024 14:43 WG2227177
1,1-Dichloroethane U 0.000335 0.00125 1 02/15/2024 14:43 WG2227177
1,2-Dichloroethane U 0.000562 0.00125 1 02/15/2024 14:43 WG2227177
1,1-Dichloroethene U 0.000443 0.00125 1 02/15/2024 14:43 WG2227177
cis-1,2-Dichloroethene U 0.000593 0.00125 1 02/15/2024 14:43 WG2227177
trans-1,2-Dichloroethene U 0.000624 0.00125 1 02/15/2024 14:43 WG2227177
1,2-Dichloropropane U 0.000205 0.00125 1 02/15/2024 14:43 WG2227177
1,1-Dichloropropene U 0.000468 0.00125 1 02/15/2024 14:43 WG2227177
1,3-Dichloropropane U 0.000281 0.00125 1 02/15/2024 14:43 WG2227177
cis-1,3-Dichloropropene U 0.000531 0.00125 1 02/15/2024 14:43 WG2227177
trans-1,3-Dichloropropene U 0.000843 0.00125 1 02/15/2024 14:43 WG2227177
2,2-Dichloropropane U J3 0.000468 0.00125 1 02/15/2024 14:43 WG2227177
Di-isopropyl ether U 0.000276 0.00125 1 02/15/2024 14:43 WG2227177
Ethylbenzene U 0.000375 0.00125 1 02/15/2024 14:43 WG2227177
Hexachloro-1,3-butadiene U 0.000427 0.00125 1 02/15/2024 14:43 WG2227177
Isopropylbenzene U 0.000531 0.00125 1 02/15/2024 14:43 WG2227177
p-Isopropyltoluene U 0.000255 0.00125 1 02/15/2024 14:43 WG2227177
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 11 of 42
SAMPLE RESULTS - 03
L1704701
B-3-9.5
Collected date/time: 02/08/24 11:55
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
2-Butanone (MEK)U 0.00584 0.0125 1 02/15/2024 14:43 WG2227177
Methylene Chloride U 0.00125 0.00624 1 02/15/2024 14:43 WG2227177
4-Methyl-2-pentanone (MIBK)U J3 0.00119 0.0125 1 02/15/2024 14:43 WG2227177
Methyl tert-butyl ether U 0.000437 0.00125 1 02/15/2024 14:43 WG2227177
Naphthalene U 0.00622 0.00624 1 02/15/2024 14:43 WG2227177
n-Propylbenzene U 0.000257 0.00125 1 02/15/2024 14:43 WG2227177
Styrene U 0.000278 0.00125 1 02/15/2024 14:43 WG2227177
1,1,1,2-Tetrachloroethane U 0.000370 0.00125 1 02/15/2024 14:43 WG2227177
1,1,2,2-Tetrachloroethane U 0.000288 0.00125 1 02/15/2024 14:43 WG2227177
1,1,2-Trichlorotrifluoroethane U 0.000532 0.00125 1 02/15/2024 14:43 WG2227177
Tetrachloroethene U 0.000406 0.00125 1 02/15/2024 14:43 WG2227177
Toluene 0.00166 J 0.00154 0.00624 1 02/15/2024 14:43 WG2227177
1,2,3-Trichlorobenzene U 0.000382 0.00125 1 02/15/2024 14:43 WG2227177
1,2,4-Trichlorobenzene U 0.000484 0.00125 1 02/15/2024 14:43 WG2227177
1,1,1-Trichloroethane U J3 J4 0.000462 0.00125 1 02/15/2024 14:43 WG2227177
1,1,2-Trichloroethane U 0.000531 0.00125 1 02/15/2024 14:43 WG2227177
Trichloroethene U 0.000250 0.00125 1 02/15/2024 14:43 WG2227177
Trichlorofluoromethane U 0.000444 0.00624 1 02/15/2024 14:43 WG2227177
1,2,3-Trichloropropane U 0.000305 0.00312 1 02/15/2024 14:43 WG2227177
1,2,4-Trimethylbenzene U 0.000263 0.00125 1 02/15/2024 14:43 WG2227177
1,2,3-Trimethylbenzene U 0.000358 0.00125 1 02/15/2024 14:43 WG2227177
1,3,5-Trimethylbenzene U 0.000332 0.00125 1 02/15/2024 14:43 WG2227177
Vinyl chloride U 0.000282 0.00125 1 02/15/2024 14:43 WG2227177
Xylenes, Total 0.000628 J 0.000624 0.00375 1 02/15/2024 14:43 WG2227177
(S) Toluene-d8 103 75.0-131 02/15/2024 14:43 WG2227177
(S) 4-Bromofluorobenzene 94.9 67.0-138 02/15/2024 14:43 WG2227177
(S) 1,2-Dichloroethane-d4 95.5 70.0-130 02/15/2024 14:43 WG2227177
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/FID) High Fraction 2.41 J 0.960 4.99 1 02/14/2024 16:27 WG2225022
(S) o-Terphenyl 34.6 18.0-148 02/14/2024 16:27 WG2225022
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 12 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 12 of 42
SAMPLE RESULTS - 04
L1704701
B-4-11
Collected date/time: 02/08/24 10:50
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 78.1 1 02/13/2024 10:07 WG2224775
Wet Chemistry by Method 9071B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH - Oil & Grease 87.9 J 42.3 128 1 02/15/2024 17:04 WG2226740
Sample Narrative:
L1704701-04 WG2226740: Total Oil&Grease is non-detect. Extract was not processed through silica gel.
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction U 0.234 0.640 1 02/15/2024 15:04 WG2227177
Acetone U 0.0265 0.0640 1 02/15/2024 15:04 WG2227177
Acrylonitrile U 0.00259 0.0128 1 02/15/2024 15:04 WG2227177
Benzene 0.000948 J 0.000480 0.00128 1 02/15/2024 15:04 WG2227177
Bromobenzene U 0.000352 0.00128 1 02/15/2024 15:04 WG2227177
Bromodichloromethane U 0.000929 0.00128 1 02/15/2024 15:04 WG2227177
Bromoform U 0.000543 0.00128 1 02/15/2024 15:04 WG2227177
Bromomethane U 0.00150 0.00640 1 02/15/2024 15:04 WG2227177
n-Butylbenzene U 0.000330 0.00128 1 02/15/2024 15:04 WG2227177
sec-Butylbenzene U 0.000257 0.00128 1 02/15/2024 15:04 WG2227177
tert-Butylbenzene U 0.000264 0.00128 1 02/15/2024 15:04 WG2227177
Carbon tetrachloride U J3 J4 0.000318 0.00128 1 02/15/2024 15:04 WG2227177
Chlorobenzene U 0.000246 0.00128 1 02/15/2024 15:04 WG2227177
Chlorodibromomethane U 0.000287 0.00128 1 02/15/2024 15:04 WG2227177
Chloroethane U 0.00128 0.00640 1 02/15/2024 15:04 WG2227177
Chloroform U 0.00132 0.00640 1 02/15/2024 15:04 WG2227177
Chloromethane U 0.000833 0.00320 1 02/15/2024 15:04 WG2227177
2-Chlorotoluene U 0.000288 0.00128 1 02/15/2024 15:04 WG2227177
4-Chlorotoluene U 0.000885 0.00128 1 02/15/2024 15:04 WG2227177
1,2-Dibromo-3-Chloropropane U 0.00243 0.00640 1 02/15/2024 15:04 WG2227177
1,2-Dibromoethane U 0.000320 0.00128 1 02/15/2024 15:04 WG2227177
Dibromomethane U 0.000448 0.00128 1 02/15/2024 15:04 WG2227177
1,2-Dichlorobenzene U 0.000544 0.00128 1 02/15/2024 15:04 WG2227177
1,3-Dichlorobenzene U 0.000769 0.00128 1 02/15/2024 15:04 WG2227177
1,4-Dichlorobenzene U 0.00106 0.00128 1 02/15/2024 15:04 WG2227177
Dichlorodifluoromethane U 0.000368 0.00640 1 02/15/2024 15:04 WG2227177
1,1-Dichloroethane U 0.000343 0.00128 1 02/15/2024 15:04 WG2227177
1,2-Dichloroethane U 0.000576 0.00128 1 02/15/2024 15:04 WG2227177
1,1-Dichloroethene U 0.000455 0.00128 1 02/15/2024 15:04 WG2227177
cis-1,2-Dichloroethene U 0.000608 0.00128 1 02/15/2024 15:04 WG2227177
trans-1,2-Dichloroethene U 0.000640 0.00128 1 02/15/2024 15:04 WG2227177
1,2-Dichloropropane U 0.000210 0.00128 1 02/15/2024 15:04 WG2227177
1,1-Dichloropropene U 0.000480 0.00128 1 02/15/2024 15:04 WG2227177
1,3-Dichloropropane U 0.000288 0.00128 1 02/15/2024 15:04 WG2227177
cis-1,3-Dichloropropene U 0.000544 0.00128 1 02/15/2024 15:04 WG2227177
trans-1,3-Dichloropropene U 0.000865 0.00128 1 02/15/2024 15:04 WG2227177
2,2-Dichloropropane U J3 0.000480 0.00128 1 02/15/2024 15:04 WG2227177
Di-isopropyl ether U 0.000283 0.00128 1 02/15/2024 15:04 WG2227177
Ethylbenzene U 0.000384 0.00128 1 02/15/2024 15:04 WG2227177
Hexachloro-1,3-butadiene U 0.000438 0.00128 1 02/15/2024 15:04 WG2227177
Isopropylbenzene U 0.000544 0.00128 1 02/15/2024 15:04 WG2227177
p-Isopropyltoluene U 0.000261 0.00128 1 02/15/2024 15:04 WG2227177
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 13 of 42
SAMPLE RESULTS - 04
L1704701
B-4-11
Collected date/time: 02/08/24 10:50
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
2-Butanone (MEK)U 0.00599 0.0128 1 02/15/2024 15:04 WG2227177
Methylene Chloride U 0.00128 0.00640 1 02/15/2024 15:04 WG2227177
4-Methyl-2-pentanone (MIBK)U J3 0.00122 0.0128 1 02/15/2024 15:04 WG2227177
Methyl tert-butyl ether U 0.000448 0.00128 1 02/15/2024 15:04 WG2227177
Naphthalene U 0.00638 0.00640 1 02/15/2024 15:04 WG2227177
n-Propylbenzene U 0.000264 0.00128 1 02/15/2024 15:04 WG2227177
Styrene U 0.000286 0.00128 1 02/15/2024 15:04 WG2227177
1,1,1,2-Tetrachloroethane U 0.000379 0.00128 1 02/15/2024 15:04 WG2227177
1,1,2,2-Tetrachloroethane U 0.000296 0.00128 1 02/15/2024 15:04 WG2227177
1,1,2-Trichlorotrifluoroethane U 0.000546 0.00128 1 02/15/2024 15:04 WG2227177
Tetrachloroethene U 0.000416 0.00128 1 02/15/2024 15:04 WG2227177
Toluene U 0.00158 0.00640 1 02/15/2024 15:04 WG2227177
1,2,3-Trichlorobenzene U 0.000392 0.00128 1 02/15/2024 15:04 WG2227177
1,2,4-Trichlorobenzene U 0.000497 0.00128 1 02/15/2024 15:04 WG2227177
1,1,1-Trichloroethane U J3 J4 0.000474 0.00128 1 02/15/2024 15:04 WG2227177
1,1,2-Trichloroethane U 0.000544 0.00128 1 02/15/2024 15:04 WG2227177
Trichloroethene U 0.000256 0.00128 1 02/15/2024 15:04 WG2227177
Trichlorofluoromethane U 0.000456 0.00640 1 02/15/2024 15:04 WG2227177
1,2,3-Trichloropropane U 0.000313 0.00320 1 02/15/2024 15:04 WG2227177
1,2,4-Trimethylbenzene U 0.000270 0.00128 1 02/15/2024 15:04 WG2227177
1,2,3-Trimethylbenzene U 0.000368 0.00128 1 02/15/2024 15:04 WG2227177
1,3,5-Trimethylbenzene U 0.000341 0.00128 1 02/15/2024 15:04 WG2227177
Vinyl chloride U 0.000289 0.00128 1 02/15/2024 15:04 WG2227177
Xylenes, Total U 0.000640 0.00384 1 02/15/2024 15:04 WG2227177
(S) Toluene-d8 102 75.0-131 02/15/2024 15:04 WG2227177
(S) 4-Bromofluorobenzene 94.8 67.0-138 02/15/2024 15:04 WG2227177
(S) 1,2-Dichloroethane-d4 94.6 70.0-130 02/15/2024 15:04 WG2227177
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
TPH (GC/FID) High Fraction U 0.985 5.12 1 02/14/2024 16:27 WG2225022
(S) o-Terphenyl 36.1 18.0-148 02/14/2024 16:27 WG2225022
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 14 of 42
SAMPLE RESULTS - 05
L1704701
B-1
Collected date/time: 02/08/24 09:05
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH - Oil & Grease U 0.824 5.68 1 02/15/2024 18:03 WG2226978
Sample Narrative:
L1704701-05 WG2226978: Total Oil&Grease is non-detect. Extract was not processed through silica gel.
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/MS) Low Fraction U 0.108 0.500 1 02/14/2024 21:38 WG2226411
Acetone U 0.0113 0.0500 1 02/14/2024 21:38 WG2226411
Acrolein U J4 0.00254 0.0500 1 02/14/2024 21:38 WG2226411
Acrylonitrile U 0.000671 0.0100 1 02/14/2024 21:38 WG2226411
Benzene U 0.0000941 0.00100 1 02/14/2024 21:38 WG2226411
Bromobenzene U 0.000118 0.00100 1 02/14/2024 21:38 WG2226411
Bromodichloromethane U 0.000136 0.00100 1 02/14/2024 21:38 WG2226411
Bromoform U 0.000129 0.00100 1 02/14/2024 21:38 WG2226411
Bromomethane U 0.000605 0.00500 1 02/14/2024 21:38 WG2226411
n-Butylbenzene U 0.000157 0.00100 1 02/14/2024 21:38 WG2226411
sec-Butylbenzene U 0.000125 0.00100 1 02/14/2024 21:38 WG2226411
tert-Butylbenzene U 0.000127 0.00100 1 02/14/2024 21:38 WG2226411
Carbon tetrachloride U 0.000128 0.00100 1 02/14/2024 21:38 WG2226411
Chlorobenzene U 0.000116 0.00100 1 02/14/2024 21:38 WG2226411
Chlorodibromomethane U 0.000140 0.00100 1 02/14/2024 21:38 WG2226411
Chloroethane U 0.000192 0.00500 1 02/14/2024 21:38 WG2226411
2-Chloroethyl vinyl ether U 0.000575 0.0500 1 02/14/2024 21:38 WG2226411
Chloroform U 0.000111 0.00500 1 02/14/2024 21:38 WG2226411
Chloromethane U 0.000960 0.00250 1 02/14/2024 21:38 WG2226411
2-Chlorotoluene U 0.000106 0.00100 1 02/14/2024 21:38 WG2226411
4-Chlorotoluene U 0.000114 0.00100 1 02/14/2024 21:38 WG2226411
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 02/14/2024 21:38 WG2226411
1,2-Dibromoethane U 0.000126 0.00100 1 02/14/2024 21:38 WG2226411
Dibromomethane U 0.000122 0.00100 1 02/14/2024 21:38 WG2226411
1,2-Dichlorobenzene U 0.000107 0.00100 1 02/14/2024 21:38 WG2226411
1,3-Dichlorobenzene U 0.000110 0.00100 1 02/14/2024 21:38 WG2226411
1,4-Dichlorobenzene U 0.000120 0.00100 1 02/14/2024 21:38 WG2226411
Dichlorodifluoromethane U 0.000374 0.00500 1 02/14/2024 21:38 WG2226411
1,1-Dichloroethane U 0.000100 0.00100 1 02/14/2024 21:38 WG2226411
1,2-Dichloroethane U 0.0000819 0.00100 1 02/14/2024 21:38 WG2226411
1,1-Dichloroethene U 0.000188 0.00100 1 02/14/2024 21:38 WG2226411
cis-1,2-Dichloroethene U 0.000126 0.00100 1 02/14/2024 21:38 WG2226411
trans-1,2-Dichloroethene U 0.000149 0.00100 1 02/14/2024 21:38 WG2226411
1,2-Dichloropropane U 0.000149 0.00100 1 02/14/2024 21:38 WG2226411
1,1-Dichloropropene U 0.000142 0.00100 1 02/14/2024 21:38 WG2226411
1,3-Dichloropropane U 0.000110 0.00100 1 02/14/2024 21:38 WG2226411
cis-1,3-Dichloropropene U 0.000111 0.00100 1 02/14/2024 21:38 WG2226411
trans-1,3-Dichloropropene U 0.000118 0.00100 1 02/14/2024 21:38 WG2226411
2,2-Dichloropropane U 0.000161 0.00100 1 02/14/2024 21:38 WG2226411
Di-isopropyl ether U 0.000105 0.00100 1 02/14/2024 21:38 WG2226411
Ethylbenzene U 0.000137 0.00100 1 02/14/2024 21:38 WG2226411
Hexachloro-1,3-butadiene U 0.000337 0.00100 1 02/14/2024 21:38 WG2226411
Isopropylbenzene U 0.000105 0.00100 1 02/14/2024 21:38 WG2226411
p-Isopropyltoluene U 0.000120 0.00100 1 02/14/2024 21:38 WG2226411
2-Butanone (MEK)U 0.00119 0.0100 1 02/14/2024 21:38 WG2226411
Methylene Chloride U 0.000430 0.00500 1 02/14/2024 21:38 WG2226411
4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 02/14/2024 21:38 WG2226411
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 15 of 42
SAMPLE RESULTS - 05
L1704701
B-1
Collected date/time: 02/08/24 09:05
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Methyl tert-butyl ether U 0.000101 0.00100 1 02/14/2024 21:38 WG2226411
Naphthalene U 0.00100 0.00500 1 02/14/2024 21:38 WG2226411
n-Propylbenzene U 0.0000993 0.00100 1 02/14/2024 21:38 WG2226411
Styrene U 0.000118 0.00100 1 02/14/2024 21:38 WG2226411
1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 02/14/2024 21:38 WG2226411
1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 02/14/2024 21:38 WG2226411
1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 02/14/2024 21:38 WG2226411
Tetrachloroethene U 0.000300 0.00100 1 02/14/2024 21:38 WG2226411
Toluene U 0.000278 0.00100 1 02/14/2024 21:38 WG2226411
1,2,3-Trichlorobenzene U 0.000230 0.00100 1 02/14/2024 21:38 WG2226411
1,2,4-Trichlorobenzene U 0.000481 0.00100 1 02/14/2024 21:38 WG2226411
1,1,1-Trichloroethane U 0.000149 0.00100 1 02/14/2024 21:38 WG2226411
1,1,2-Trichloroethane U 0.000158 0.00100 1 02/14/2024 21:38 WG2226411
Trichloroethene U 0.000190 0.00100 1 02/14/2024 21:38 WG2226411
Trichlorofluoromethane U 0.000160 0.00500 1 02/14/2024 21:38 WG2226411
1,2,3-Trichloropropane U 0.000237 0.00250 1 02/14/2024 21:38 WG2226411
1,2,4-Trimethylbenzene U 0.000322 0.00100 1 02/14/2024 21:38 WG2226411
1,2,3-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 21:38 WG2226411
1,3,5-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 21:38 WG2226411
Vinyl chloride U 0.000234 0.00100 1 02/14/2024 21:38 WG2226411
Xylenes, Total U 0.000174 0.00300 1 02/14/2024 21:38 WG2226411
(S) Toluene-d8 106 80.0-120 02/14/2024 21:38 WG2226411
(S) 4-Bromofluorobenzene 98.4 77.0-126 02/14/2024 21:38 WG2226411
(S) 1,2-Dichloroethane-d4 94.4 70.0-130 02/14/2024 21:38 WG2226411
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) High Fraction 10.7 0.0494 0.200 2 02/14/2024 18:02 WG2225046
(S) o-Terphenyl 92.5 31.0-160 02/14/2024 18:02 WG2225046
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 16 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 16 of 42
SAMPLE RESULTS - 06
L1704701
B-2
Collected date/time: 02/08/24 09:50
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH - Oil & Grease 1.30 J 0.784 5.41 1 02/15/2024 18:03 WG2226978
Sample Narrative:
L1704701-06 WG2226978: Total Oil&Grease is non-detect. Extract was not processed through silica gel.
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/MS) Low Fraction U 0.108 0.500 1 02/14/2024 21:58 WG2226411
Acetone U 0.0113 0.0500 1 02/14/2024 21:58 WG2226411
Acrolein U J4 0.00254 0.0500 1 02/14/2024 21:58 WG2226411
Acrylonitrile U 0.000671 0.0100 1 02/14/2024 21:58 WG2226411
Benzene U 0.0000941 0.00100 1 02/14/2024 21:58 WG2226411
Bromobenzene U 0.000118 0.00100 1 02/14/2024 21:58 WG2226411
Bromodichloromethane U 0.000136 0.00100 1 02/14/2024 21:58 WG2226411
Bromoform U 0.000129 0.00100 1 02/14/2024 21:58 WG2226411
Bromomethane U 0.000605 0.00500 1 02/14/2024 21:58 WG2226411
n-Butylbenzene U 0.000157 0.00100 1 02/14/2024 21:58 WG2226411
sec-Butylbenzene U 0.000125 0.00100 1 02/14/2024 21:58 WG2226411
tert-Butylbenzene U 0.000127 0.00100 1 02/14/2024 21:58 WG2226411
Carbon tetrachloride U 0.000128 0.00100 1 02/14/2024 21:58 WG2226411
Chlorobenzene U 0.000116 0.00100 1 02/14/2024 21:58 WG2226411
Chlorodibromomethane U 0.000140 0.00100 1 02/14/2024 21:58 WG2226411
Chloroethane U 0.000192 0.00500 1 02/14/2024 21:58 WG2226411
2-Chloroethyl vinyl ether U 0.000575 0.0500 1 02/14/2024 21:58 WG2226411
Chloroform U 0.000111 0.00500 1 02/14/2024 21:58 WG2226411
Chloromethane U 0.000960 0.00250 1 02/14/2024 21:58 WG2226411
2-Chlorotoluene U 0.000106 0.00100 1 02/14/2024 21:58 WG2226411
4-Chlorotoluene U 0.000114 0.00100 1 02/14/2024 21:58 WG2226411
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 02/14/2024 21:58 WG2226411
1,2-Dibromoethane U 0.000126 0.00100 1 02/14/2024 21:58 WG2226411
Dibromomethane U 0.000122 0.00100 1 02/14/2024 21:58 WG2226411
1,2-Dichlorobenzene U 0.000107 0.00100 1 02/14/2024 21:58 WG2226411
1,3-Dichlorobenzene U 0.000110 0.00100 1 02/14/2024 21:58 WG2226411
1,4-Dichlorobenzene U 0.000120 0.00100 1 02/14/2024 21:58 WG2226411
Dichlorodifluoromethane U 0.000374 0.00500 1 02/14/2024 21:58 WG2226411
1,1-Dichloroethane U 0.000100 0.00100 1 02/14/2024 21:58 WG2226411
1,2-Dichloroethane U 0.0000819 0.00100 1 02/14/2024 21:58 WG2226411
1,1-Dichloroethene U 0.000188 0.00100 1 02/14/2024 21:58 WG2226411
cis-1,2-Dichloroethene U 0.000126 0.00100 1 02/14/2024 21:58 WG2226411
trans-1,2-Dichloroethene U 0.000149 0.00100 1 02/14/2024 21:58 WG2226411
1,2-Dichloropropane U 0.000149 0.00100 1 02/14/2024 21:58 WG2226411
1,1-Dichloropropene U 0.000142 0.00100 1 02/14/2024 21:58 WG2226411
1,3-Dichloropropane U 0.000110 0.00100 1 02/14/2024 21:58 WG2226411
cis-1,3-Dichloropropene U 0.000111 0.00100 1 02/14/2024 21:58 WG2226411
trans-1,3-Dichloropropene U 0.000118 0.00100 1 02/14/2024 21:58 WG2226411
2,2-Dichloropropane U 0.000161 0.00100 1 02/14/2024 21:58 WG2226411
Di-isopropyl ether U 0.000105 0.00100 1 02/14/2024 21:58 WG2226411
Ethylbenzene U 0.000137 0.00100 1 02/14/2024 21:58 WG2226411
Hexachloro-1,3-butadiene U 0.000337 0.00100 1 02/14/2024 21:58 WG2226411
Isopropylbenzene U 0.000105 0.00100 1 02/14/2024 21:58 WG2226411
p-Isopropyltoluene U 0.000120 0.00100 1 02/14/2024 21:58 WG2226411
2-Butanone (MEK)U 0.00119 0.0100 1 02/14/2024 21:58 WG2226411
Methylene Chloride U 0.000430 0.00500 1 02/14/2024 21:58 WG2226411
4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 02/14/2024 21:58 WG2226411
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 17 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 17 of 42
SAMPLE RESULTS - 06
L1704701
B-2
Collected date/time: 02/08/24 09:50
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Methyl tert-butyl ether U 0.000101 0.00100 1 02/14/2024 21:58 WG2226411
Naphthalene U 0.00100 0.00500 1 02/14/2024 21:58 WG2226411
n-Propylbenzene U 0.0000993 0.00100 1 02/14/2024 21:58 WG2226411
Styrene U 0.000118 0.00100 1 02/14/2024 21:58 WG2226411
1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 02/14/2024 21:58 WG2226411
1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 02/14/2024 21:58 WG2226411
1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 02/14/2024 21:58 WG2226411
Tetrachloroethene U 0.000300 0.00100 1 02/14/2024 21:58 WG2226411
Toluene U 0.000278 0.00100 1 02/14/2024 21:58 WG2226411
1,2,3-Trichlorobenzene U 0.000230 0.00100 1 02/14/2024 21:58 WG2226411
1,2,4-Trichlorobenzene U 0.000481 0.00100 1 02/14/2024 21:58 WG2226411
1,1,1-Trichloroethane U 0.000149 0.00100 1 02/14/2024 21:58 WG2226411
1,1,2-Trichloroethane U 0.000158 0.00100 1 02/14/2024 21:58 WG2226411
Trichloroethene U 0.000190 0.00100 1 02/14/2024 21:58 WG2226411
Trichlorofluoromethane U 0.000160 0.00500 1 02/14/2024 21:58 WG2226411
1,2,3-Trichloropropane U 0.000237 0.00250 1 02/14/2024 21:58 WG2226411
1,2,4-Trimethylbenzene U 0.000322 0.00100 1 02/14/2024 21:58 WG2226411
1,2,3-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 21:58 WG2226411
1,3,5-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 21:58 WG2226411
Vinyl chloride U 0.000234 0.00100 1 02/14/2024 21:58 WG2226411
Xylenes, Total U 0.000174 0.00300 1 02/14/2024 21:58 WG2226411
(S) Toluene-d8 106 80.0-120 02/14/2024 21:58 WG2226411
(S) 4-Bromofluorobenzene 95.8 77.0-126 02/14/2024 21:58 WG2226411
(S) 1,2-Dichloroethane-d4 93.6 70.0-130 02/14/2024 21:58 WG2226411
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) High Fraction 0.0537 B J 0.0494 0.200 2 02/14/2024 18:22 WG2225046
(S) o-Terphenyl 81.0 31.0-160 02/14/2024 18:22 WG2225046
Sample Narrative:
L1704701-06 WG2225046: Dilution due to matrix impact during extraction procedure
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 18 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 18 of 42
SAMPLE RESULTS - 07
L1704701
B-3
Collected date/time: 02/08/24 12:05
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH - Oil & Grease 2.47 J 0.853 5.88 1 02/15/2024 18:03 WG2226978
Sample Narrative:
L1704701-07 WG2226978: Total Oil&Grease is non-detect. Extract was not processed through silica gel.
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/MS) Low Fraction U 0.108 0.500 1 02/14/2024 22:19 WG2226411
Acetone U 0.0113 0.0500 1 02/14/2024 22:19 WG2226411
Acrolein U J4 0.00254 0.0500 1 02/14/2024 22:19 WG2226411
Acrylonitrile U 0.000671 0.0100 1 02/14/2024 22:19 WG2226411
Benzene U 0.0000941 0.00100 1 02/14/2024 22:19 WG2226411
Bromobenzene U 0.000118 0.00100 1 02/14/2024 22:19 WG2226411
Bromodichloromethane U 0.000136 0.00100 1 02/14/2024 22:19 WG2226411
Bromoform U 0.000129 0.00100 1 02/14/2024 22:19 WG2226411
Bromomethane U 0.000605 0.00500 1 02/14/2024 22:19 WG2226411
n-Butylbenzene U 0.000157 0.00100 1 02/14/2024 22:19 WG2226411
sec-Butylbenzene U 0.000125 0.00100 1 02/14/2024 22:19 WG2226411
tert-Butylbenzene U 0.000127 0.00100 1 02/14/2024 22:19 WG2226411
Carbon tetrachloride U 0.000128 0.00100 1 02/14/2024 22:19 WG2226411
Chlorobenzene U 0.000116 0.00100 1 02/14/2024 22:19 WG2226411
Chlorodibromomethane U 0.000140 0.00100 1 02/14/2024 22:19 WG2226411
Chloroethane U 0.000192 0.00500 1 02/14/2024 22:19 WG2226411
2-Chloroethyl vinyl ether U 0.000575 0.0500 1 02/14/2024 22:19 WG2226411
Chloroform U 0.000111 0.00500 1 02/14/2024 22:19 WG2226411
Chloromethane U 0.000960 0.00250 1 02/14/2024 22:19 WG2226411
2-Chlorotoluene U 0.000106 0.00100 1 02/14/2024 22:19 WG2226411
4-Chlorotoluene U 0.000114 0.00100 1 02/14/2024 22:19 WG2226411
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 02/14/2024 22:19 WG2226411
1,2-Dibromoethane U 0.000126 0.00100 1 02/14/2024 22:19 WG2226411
Dibromomethane U 0.000122 0.00100 1 02/14/2024 22:19 WG2226411
1,2-Dichlorobenzene U 0.000107 0.00100 1 02/14/2024 22:19 WG2226411
1,3-Dichlorobenzene U 0.000110 0.00100 1 02/14/2024 22:19 WG2226411
1,4-Dichlorobenzene U 0.000120 0.00100 1 02/14/2024 22:19 WG2226411
Dichlorodifluoromethane U 0.000374 0.00500 1 02/14/2024 22:19 WG2226411
1,1-Dichloroethane U 0.000100 0.00100 1 02/14/2024 22:19 WG2226411
1,2-Dichloroethane U 0.0000819 0.00100 1 02/14/2024 22:19 WG2226411
1,1-Dichloroethene U 0.000188 0.00100 1 02/14/2024 22:19 WG2226411
cis-1,2-Dichloroethene U 0.000126 0.00100 1 02/14/2024 22:19 WG2226411
trans-1,2-Dichloroethene U 0.000149 0.00100 1 02/14/2024 22:19 WG2226411
1,2-Dichloropropane U 0.000149 0.00100 1 02/14/2024 22:19 WG2226411
1,1-Dichloropropene U 0.000142 0.00100 1 02/14/2024 22:19 WG2226411
1,3-Dichloropropane U 0.000110 0.00100 1 02/14/2024 22:19 WG2226411
cis-1,3-Dichloropropene U 0.000111 0.00100 1 02/14/2024 22:19 WG2226411
trans-1,3-Dichloropropene U 0.000118 0.00100 1 02/14/2024 22:19 WG2226411
2,2-Dichloropropane U 0.000161 0.00100 1 02/14/2024 22:19 WG2226411
Di-isopropyl ether U 0.000105 0.00100 1 02/14/2024 22:19 WG2226411
Ethylbenzene U 0.000137 0.00100 1 02/14/2024 22:19 WG2226411
Hexachloro-1,3-butadiene U 0.000337 0.00100 1 02/14/2024 22:19 WG2226411
Isopropylbenzene U 0.000105 0.00100 1 02/14/2024 22:19 WG2226411
p-Isopropyltoluene U 0.000120 0.00100 1 02/14/2024 22:19 WG2226411
2-Butanone (MEK)U 0.00119 0.0100 1 02/14/2024 22:19 WG2226411
Methylene Chloride U 0.000430 0.00500 1 02/14/2024 22:19 WG2226411
4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 02/14/2024 22:19 WG2226411
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 19 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 19 of 42
SAMPLE RESULTS - 07
L1704701
B-3
Collected date/time: 02/08/24 12:05
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Methyl tert-butyl ether U 0.000101 0.00100 1 02/14/2024 22:19 WG2226411
Naphthalene U 0.00100 0.00500 1 02/14/2024 22:19 WG2226411
n-Propylbenzene U 0.0000993 0.00100 1 02/14/2024 22:19 WG2226411
Styrene U 0.000118 0.00100 1 02/14/2024 22:19 WG2226411
1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 02/14/2024 22:19 WG2226411
1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 02/14/2024 22:19 WG2226411
1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 02/14/2024 22:19 WG2226411
Tetrachloroethene U 0.000300 0.00100 1 02/14/2024 22:19 WG2226411
Toluene U 0.000278 0.00100 1 02/14/2024 22:19 WG2226411
1,2,3-Trichlorobenzene U 0.000230 0.00100 1 02/14/2024 22:19 WG2226411
1,2,4-Trichlorobenzene U 0.000481 0.00100 1 02/14/2024 22:19 WG2226411
1,1,1-Trichloroethane U 0.000149 0.00100 1 02/14/2024 22:19 WG2226411
1,1,2-Trichloroethane U 0.000158 0.00100 1 02/14/2024 22:19 WG2226411
Trichloroethene U 0.000190 0.00100 1 02/14/2024 22:19 WG2226411
Trichlorofluoromethane U 0.000160 0.00500 1 02/14/2024 22:19 WG2226411
1,2,3-Trichloropropane U 0.000237 0.00250 1 02/14/2024 22:19 WG2226411
1,2,4-Trimethylbenzene U 0.000322 0.00100 1 02/14/2024 22:19 WG2226411
1,2,3-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 22:19 WG2226411
1,3,5-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 22:19 WG2226411
Vinyl chloride U 0.000234 0.00100 1 02/14/2024 22:19 WG2226411
Xylenes, Total U 0.000174 0.00300 1 02/14/2024 22:19 WG2226411
(S) Toluene-d8 107 80.0-120 02/14/2024 22:19 WG2226411
(S) 4-Bromofluorobenzene 96.9 77.0-126 02/14/2024 22:19 WG2226411
(S) 1,2-Dichloroethane-d4 94.8 70.0-130 02/14/2024 22:19 WG2226411
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) High Fraction 0.442 0.0494 0.200 2 02/14/2024 18:43 WG2225046
(S) o-Terphenyl 83.0 31.0-160 02/14/2024 18:43 WG2225046
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 10:18 20 of 42
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Salt Lake City, UT 61247015 L1704701 02/20/24 11:37 20 of 42
SAMPLE RESULTS - 08
L1704701
B-4
Collected date/time: 02/08/24 11:00
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH - Oil & Grease 43.3 J 8.06 55.6 10 02/15/2024 18:03 WG2226978
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/MS) Low Fraction U 0.108 0.500 1 02/14/2024 22:39 WG2226411
Acetone U 0.0113 0.0500 1 02/14/2024 22:39 WG2226411
Acrolein U J4 0.00254 0.0500 1 02/14/2024 22:39 WG2226411
Acrylonitrile U 0.000671 0.0100 1 02/14/2024 22:39 WG2226411
Benzene U 0.0000941 0.00100 1 02/14/2024 22:39 WG2226411
Bromobenzene U 0.000118 0.00100 1 02/14/2024 22:39 WG2226411
Bromodichloromethane U 0.000136 0.00100 1 02/14/2024 22:39 WG2226411
Bromoform U 0.000129 0.00100 1 02/14/2024 22:39 WG2226411
Bromomethane U 0.000605 0.00500 1 02/14/2024 22:39 WG2226411
n-Butylbenzene U 0.000157 0.00100 1 02/14/2024 22:39 WG2226411
sec-Butylbenzene U 0.000125 0.00100 1 02/14/2024 22:39 WG2226411
tert-Butylbenzene U 0.000127 0.00100 1 02/14/2024 22:39 WG2226411
Carbon tetrachloride U 0.000128 0.00100 1 02/14/2024 22:39 WG2226411
Chlorobenzene U 0.000116 0.00100 1 02/14/2024 22:39 WG2226411
Chlorodibromomethane U 0.000140 0.00100 1 02/14/2024 22:39 WG2226411
Chloroethane U 0.000192 0.00500 1 02/14/2024 22:39 WG2226411
2-Chloroethyl vinyl ether U 0.000575 0.0500 1 02/14/2024 22:39 WG2226411
Chloroform U 0.000111 0.00500 1 02/14/2024 22:39 WG2226411
Chloromethane U 0.000960 0.00250 1 02/14/2024 22:39 WG2226411
2-Chlorotoluene U 0.000106 0.00100 1 02/14/2024 22:39 WG2226411
4-Chlorotoluene U 0.000114 0.00100 1 02/14/2024 22:39 WG2226411
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 02/14/2024 22:39 WG2226411
1,2-Dibromoethane U 0.000126 0.00100 1 02/14/2024 22:39 WG2226411
Dibromomethane U 0.000122 0.00100 1 02/14/2024 22:39 WG2226411
1,2-Dichlorobenzene U 0.000107 0.00100 1 02/14/2024 22:39 WG2226411
1,3-Dichlorobenzene U 0.000110 0.00100 1 02/14/2024 22:39 WG2226411
1,4-Dichlorobenzene U 0.000120 0.00100 1 02/14/2024 22:39 WG2226411
Dichlorodifluoromethane U 0.000374 0.00500 1 02/14/2024 22:39 WG2226411
1,1-Dichloroethane U 0.000100 0.00100 1 02/14/2024 22:39 WG2226411
1,2-Dichloroethane U 0.0000819 0.00100 1 02/14/2024 22:39 WG2226411
1,1-Dichloroethene U 0.000188 0.00100 1 02/14/2024 22:39 WG2226411
cis-1,2-Dichloroethene U 0.000126 0.00100 1 02/14/2024 22:39 WG2226411
trans-1,2-Dichloroethene U 0.000149 0.00100 1 02/14/2024 22:39 WG2226411
1,2-Dichloropropane U 0.000149 0.00100 1 02/14/2024 22:39 WG2226411
1,1-Dichloropropene U 0.000142 0.00100 1 02/14/2024 22:39 WG2226411
1,3-Dichloropropane U 0.000110 0.00100 1 02/14/2024 22:39 WG2226411
cis-1,3-Dichloropropene U 0.000111 0.00100 1 02/14/2024 22:39 WG2226411
trans-1,3-Dichloropropene U 0.000118 0.00100 1 02/14/2024 22:39 WG2226411
2,2-Dichloropropane U 0.000161 0.00100 1 02/14/2024 22:39 WG2226411
Di-isopropyl ether U 0.000105 0.00100 1 02/14/2024 22:39 WG2226411
Ethylbenzene U 0.000137 0.00100 1 02/14/2024 22:39 WG2226411
Hexachloro-1,3-butadiene U 0.000337 0.00100 1 02/14/2024 22:39 WG2226411
Isopropylbenzene U 0.000105 0.00100 1 02/14/2024 22:39 WG2226411
p-Isopropyltoluene U 0.000120 0.00100 1 02/14/2024 22:39 WG2226411
2-Butanone (MEK)U 0.00119 0.0100 1 02/14/2024 22:39 WG2226411
Methylene Chloride U 0.000430 0.00500 1 02/14/2024 22:39 WG2226411
4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 02/14/2024 22:39 WG2226411
Methyl tert-butyl ether U 0.000101 0.00100 1 02/14/2024 22:39 WG2226411
Naphthalene U 0.00100 0.00500 1 02/14/2024 22:39 WG2226411
n-Propylbenzene U 0.0000993 0.00100 1 02/14/2024 22:39 WG2226411
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 08
L1704701
B-4
Collected date/time: 02/08/24 11:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Styrene U 0.000118 0.00100 1 02/14/2024 22:39 WG2226411
1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 02/14/2024 22:39 WG2226411
1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 02/14/2024 22:39 WG2226411
1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 02/14/2024 22:39 WG2226411
Tetrachloroethene U 0.000300 0.00100 1 02/14/2024 22:39 WG2226411
Toluene U 0.000278 0.00100 1 02/14/2024 22:39 WG2226411
1,2,3-Trichlorobenzene U 0.000230 0.00100 1 02/14/2024 22:39 WG2226411
1,2,4-Trichlorobenzene U 0.000481 0.00100 1 02/14/2024 22:39 WG2226411
1,1,1-Trichloroethane U 0.000149 0.00100 1 02/14/2024 22:39 WG2226411
1,1,2-Trichloroethane U 0.000158 0.00100 1 02/14/2024 22:39 WG2226411
Trichloroethene U 0.000190 0.00100 1 02/14/2024 22:39 WG2226411
Trichlorofluoromethane U 0.000160 0.00500 1 02/14/2024 22:39 WG2226411
1,2,3-Trichloropropane U 0.000237 0.00250 1 02/14/2024 22:39 WG2226411
1,2,4-Trimethylbenzene U 0.000322 0.00100 1 02/14/2024 22:39 WG2226411
1,2,3-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 22:39 WG2226411
1,3,5-Trimethylbenzene U 0.000104 0.00100 1 02/14/2024 22:39 WG2226411
Vinyl chloride U 0.000234 0.00100 1 02/14/2024 22:39 WG2226411
Xylenes, Total U 0.000174 0.00300 1 02/14/2024 22:39 WG2226411
(S) Toluene-d8 107 80.0-120 02/14/2024 22:39 WG2226411
(S) 4-Bromofluorobenzene 96.6 77.0-126 02/14/2024 22:39 WG2226411
(S) 1,2-Dichloroethane-d4 96.0 70.0-130 02/14/2024 22:39 WG2226411
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) High Fraction U 0.0494 0.200 2 02/14/2024 19:03 WG2225046
(S) o-Terphenyl 77.0 31.0-160 02/14/2024 19:03 WG2225046
Sample Narrative:
L1704701-08 WG2225046: Dilution due to matrix impact during extraction procedure
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2224775
Total Solids by Method 2540 G-2011 L1704701-01,02,03,04
Method Blank (MB)
(MB) R4033445-1 02/13/24 10:07
MB Result MB Qualifier MB MDL MB RDL
Analyte %%%
Total Solids 0.00200
L1704671-01 Original Sample (OS) • Duplicate (DUP)
(OS) L1704671-01 02/13/24 10:07 • (DUP) R4033445-3 02/13/24 10:07
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte %%%%
Total Solids 86.0 85.4 1 0.703 10
Laboratory Control Sample (LCS)
(LCS) R4033445-2 02/13/24 10:07
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte %%%%
Total Solids 50.0 50.0 100 90.0-110
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226978
Wet Chemistry by Method 1664A L1704701-05,06,07,08
Method Blank (MB)
(MB) R4034395-1 02/15/24 18:03
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TPH - Oil & Grease U 0.725 5.00
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034395-2 02/15/24 18:03 • (LCSD) R4034395-3 02/15/24 18:03
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l %%%%%
TPH - Oil & Grease 20.0 24.1 24.6 121 123 64.0-132 2.05 34
L1704413-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1704413-01 02/15/24 18:03 • (MS) R4034395-4 02/15/24 18:03 • (MSD) R4034395-5 02/15/24 18:03
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
TPH - Oil & Grease 20.0 12.2 19.7 17.4 37.5 26.0 1 64.0-132 J6 J6 12.4 34
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226740
Wet Chemistry by Method 9071B L1704701-01,02,03,04
Method Blank (MB)
(MB) R4034382-1 02/15/24 17:04
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH - Oil & Grease U 33.0 100
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034382-2 02/15/24 17:04 • (LCSD) R4034382-3 02/15/24 17:04
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg %%%%%
TPH - Oil & Grease 2000 2330 2300 117 115 80.0-120 1.30 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226411
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-05,06,07,08
Method Blank (MB)
(MB) R4034071-3 02/14/24 12:37
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TPH (GC/MS) Low Fraction U 0.108 0.500
Acetone U 0.0113 0.0500
Acrolein U 0.00254 0.0500
Acrylonitrile U 0.000671 0.0100
Benzene U 0.0000941 0.00100
Bromobenzene U 0.000118 0.00100
Bromodichloromethane U 0.000136 0.00100
Bromoform U 0.000129 0.00100
Bromomethane U 0.000605 0.00500
n-Butylbenzene U 0.000157 0.00100
sec-Butylbenzene U 0.000125 0.00100
tert-Butylbenzene U 0.000127 0.00100
Carbon tetrachloride U 0.000128 0.00100
Chlorobenzene U 0.000116 0.00100
Chlorodibromomethane U 0.000140 0.00100
Chloroethane U 0.000192 0.00500
2-Chloroethyl vinyl ether U 0.000575 0.0500
Chloroform U 0.000111 0.00500
Chloromethane U 0.000960 0.00250
2-Chlorotoluene U 0.000106 0.00100
4-Chlorotoluene U 0.000114 0.00100
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500
1,2-Dibromoethane U 0.000126 0.00100
Dibromomethane U 0.000122 0.00100
1,2-Dichlorobenzene U 0.000107 0.00100
1,3-Dichlorobenzene U 0.000110 0.00100
1,4-Dichlorobenzene U 0.000120 0.00100
Dichlorodifluoromethane U 0.000374 0.00500
1,1-Dichloroethane U 0.000100 0.00100
1,2-Dichloroethane U 0.0000819 0.00100
1,1-Dichloroethene U 0.000188 0.00100
cis-1,2-Dichloroethene U 0.000126 0.00100
trans-1,2-Dichloroethene U 0.000149 0.00100
1,2-Dichloropropane U 0.000149 0.00100
1,1-Dichloropropene U 0.000142 0.00100
1,3-Dichloropropane U 0.000110 0.00100
cis-1,3-Dichloropropene U 0.000111 0.00100
trans-1,3-Dichloropropene U 0.000118 0.00100
2,2-Dichloropropane U 0.000161 0.00100
Di-isopropyl ether U 0.000105 0.00100
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226411
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-05,06,07,08
Method Blank (MB)
(MB) R4034071-3 02/14/24 12:37
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Ethylbenzene U 0.000137 0.00100
Hexachloro-1,3-butadiene U 0.000337 0.00100
Isopropylbenzene U 0.000105 0.00100
p-Isopropyltoluene U 0.000120 0.00100
2-Butanone (MEK)U 0.00119 0.0100
Methylene Chloride U 0.000430 0.00500
4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100
Methyl tert-butyl ether U 0.000101 0.00100
Naphthalene U 0.00100 0.00500
n-Propylbenzene U 0.0000993 0.00100
Styrene U 0.000118 0.00100
1,1,1,2-Tetrachloroethane U 0.000147 0.00100
1,1,2,2-Tetrachloroethane U 0.000133 0.00100
1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100
Tetrachloroethene U 0.000300 0.00100
Toluene U 0.000278 0.00100
1,2,3-Trichlorobenzene U 0.000230 0.00100
1,2,4-Trichlorobenzene U 0.000481 0.00100
1,1,1-Trichloroethane U 0.000149 0.00100
1,1,2-Trichloroethane U 0.000158 0.00100
Trichloroethene U 0.000190 0.00100
Trichlorofluoromethane U 0.000160 0.00500
1,2,3-Trichloropropane U 0.000237 0.00250
1,2,4-Trimethylbenzene U 0.000322 0.00100
1,2,3-Trimethylbenzene U 0.000104 0.00100
1,3,5-Trimethylbenzene U 0.000104 0.00100
Vinyl chloride U 0.000234 0.00100
Xylenes, Total U 0.000174 0.00300
(S) Toluene-d8 108 80.0-120
(S) 4-Bromofluorobenzene 96.9 77.0-126
(S) 1,2-Dichloroethane-d4 94.1 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4034071-1 02/14/24 11:07
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
Acetone 0.0250 0.0214 85.6 19.0-160
Acrolein 0.0250 0.0769 308 10.0-160 J4
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226411
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-05,06,07,08
Laboratory Control Sample (LCS)
(LCS) R4034071-1 02/14/24 11:07
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
Acrylonitrile 0.0250 0.0220 88.0 55.0-149
Benzene 0.00500 0.00473 94.6 70.0-123
Bromobenzene 0.00500 0.00450 90.0 73.0-121
Bromodichloromethane 0.00500 0.00444 88.8 75.0-120
Bromoform 0.00500 0.00396 79.2 68.0-132
Bromomethane 0.00500 0.00440 88.0 10.0-160
n-Butylbenzene 0.00500 0.00412 82.4 73.0-125
sec-Butylbenzene 0.00500 0.00458 91.6 75.0-125
tert-Butylbenzene 0.00500 0.00441 88.2 76.0-124
Carbon tetrachloride 0.00500 0.00472 94.4 68.0-126
Chlorobenzene 0.00500 0.00453 90.6 80.0-121
Chlorodibromomethane 0.00500 0.00411 82.2 77.0-125
Chloroethane 0.00500 0.00501 100 47.0-150
2-Chloroethyl vinyl ether 0.0250 0.0252 101 51.0-160
Chloroform 0.00500 0.00461 92.2 73.0-120
Chloromethane 0.00500 0.00528 106 41.0-142
2-Chlorotoluene 0.00500 0.00462 92.4 76.0-123
4-Chlorotoluene 0.00500 0.00433 86.6 75.0-122
1,2-Dibromo-3-Chloropropane 0.00500 0.00351 70.2 58.0-134
1,2-Dibromoethane 0.00500 0.00430 86.0 80.0-122
Dibromomethane 0.00500 0.00456 91.2 80.0-120
1,2-Dichlorobenzene 0.00500 0.00436 87.2 79.0-121
1,3-Dichlorobenzene 0.00500 0.00432 86.4 79.0-120
1,4-Dichlorobenzene 0.00500 0.00440 88.0 79.0-120
Dichlorodifluoromethane 0.00500 0.00591 118 51.0-149
1,1-Dichloroethane 0.00500 0.00474 94.8 70.0-126
1,2-Dichloroethane 0.00500 0.00452 90.4 70.0-128
1,1-Dichloroethene 0.00500 0.00483 96.6 71.0-124
cis-1,2-Dichloroethene 0.00500 0.00464 92.8 73.0-120
trans-1,2-Dichloroethene 0.00500 0.00486 97.2 73.0-120
1,2-Dichloropropane 0.00500 0.00461 92.2 77.0-125
1,1-Dichloropropene 0.00500 0.00493 98.6 74.0-126
1,3-Dichloropropane 0.00500 0.00457 91.4 80.0-120
cis-1,3-Dichloropropene 0.00500 0.00456 91.2 80.0-123
trans-1,3-Dichloropropene 0.00500 0.00433 86.6 78.0-124
2,2-Dichloropropane 0.00500 0.00468 93.6 58.0-130
Di-isopropyl ether 0.00500 0.00431 86.2 58.0-138
Ethylbenzene 0.00500 0.00437 87.4 79.0-123
Hexachloro-1,3-butadiene 0.00500 0.00473 94.6 54.0-138
Isopropylbenzene 0.00500 0.00433 86.6 76.0-127
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226411
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-05,06,07,08
Laboratory Control Sample (LCS)
(LCS) R4034071-1 02/14/24 11:07
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
p-Isopropyltoluene 0.00500 0.00449 89.8 76.0-125
2-Butanone (MEK)0.0250 0.0199 79.6 44.0-160
Methylene Chloride 0.00500 0.00480 96.0 67.0-120
4-Methyl-2-pentanone (MIBK)0.0250 0.0216 86.4 68.0-142
Methyl tert-butyl ether 0.00500 0.00456 91.2 68.0-125
Naphthalene 0.00500 0.00349 69.8 54.0-135
n-Propylbenzene 0.00500 0.00456 91.2 77.0-124
Styrene 0.00500 0.00416 83.2 73.0-130
1,1,1,2-Tetrachloroethane 0.00500 0.00423 84.6 75.0-125
1,1,2,2-Tetrachloroethane 0.00500 0.00477 95.4 65.0-130
1,1,2-Trichlorotrifluoroethane 0.00500 0.00472 94.4 69.0-132
Tetrachloroethene 0.00500 0.00452 90.4 72.0-132
Toluene 0.00500 0.00451 90.2 79.0-120
1,2,3-Trichlorobenzene 0.00500 0.00490 98.0 50.0-138
1,2,4-Trichlorobenzene 0.00500 0.00436 87.2 57.0-137
1,1,1-Trichloroethane 0.00500 0.00467 93.4 73.0-124
1,1,2-Trichloroethane 0.00500 0.00458 91.6 80.0-120
Trichloroethene 0.00500 0.00458 91.6 78.0-124
Trichlorofluoromethane 0.00500 0.00477 95.4 59.0-147
1,2,3-Trichloropropane 0.00500 0.00452 90.4 73.0-130
1,2,4-Trimethylbenzene 0.00500 0.00426 85.2 76.0-121
1,2,3-Trimethylbenzene 0.00500 0.00450 90.0 60.0-153
1,3,5-Trimethylbenzene 0.00500 0.00446 89.2 76.0-122
Vinyl chloride 0.00500 0.00520 104 67.0-131
Xylenes, Total 0.0150 0.0130 86.7 79.0-123
(S) Toluene-d8 103 80.0-120
(S) 4-Bromofluorobenzene 97.4 77.0-126
(S) 1,2-Dichloroethane-d4 93.8 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4034071-2 02/14/24 11:29
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
TPH (GC/MS) Low Fraction 5.00 5.69 114 66.0-132
(S) Toluene-d8 104 80.0-120
(S) 4-Bromofluorobenzene 108 77.0-126
(S) 1,2-Dichloroethane-d4 97.6 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227177
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-02,03,04
Method Blank (MB)
(MB) R4034634-4 02/15/24 11:28
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH (GC/MS) Low Fraction U 0.183 0.500
Acetone U 0.0207 0.0500
Acrylonitrile U 0.00202 0.0100
Benzene U 0.000375 0.00100
Bromobenzene U 0.000275 0.00100
Bromodichloromethane U 0.000725 0.00100
Bromoform U 0.000424 0.00100
Bromomethane U 0.00117 0.00500
n-Butylbenzene U 0.000258 0.00100
sec-Butylbenzene U 0.000201 0.00100
tert-Butylbenzene U 0.000206 0.00100
Carbon tetrachloride U 0.000248 0.00100
Chlorobenzene U 0.000192 0.00100
Chlorodibromomethane U 0.000224 0.00100
Chloroethane U 0.00100 0.00500
Chloroform U 0.00103 0.00500
Chloromethane U 0.000650 0.00250
2-Chlorotoluene U 0.000225 0.00100
4-Chlorotoluene U 0.000691 0.00100
1,2-Dibromo-3-Chloropropane U 0.00190 0.00500
1,2-Dibromoethane U 0.000250 0.00100
Dibromomethane U 0.000350 0.00100
1,2-Dichlorobenzene U 0.000425 0.00100
1,3-Dichlorobenzene U 0.000600 0.00100
1,4-Dichlorobenzene U 0.000830 0.00100
Dichlorodifluoromethane U 0.000287 0.00500
1,1-Dichloroethane U 0.000268 0.00100
1,2-Dichloroethane U 0.000450 0.00100
1,1-Dichloroethene U 0.000355 0.00100
cis-1,2-Dichloroethene U 0.000475 0.00100
trans-1,2-Dichloroethene U 0.000500 0.00100
1,2-Dichloropropane U 0.000164 0.00100
1,1-Dichloropropene U 0.000375 0.00100
1,3-Dichloropropane U 0.000225 0.00100
cis-1,3-Dichloropropene U 0.000425 0.00100
trans-1,3-Dichloropropene U 0.000675 0.00100
2,2-Dichloropropane U 0.000375 0.00100
Di-isopropyl ether U 0.000221 0.00100
Ethylbenzene U 0.000300 0.00100
Hexachloro-1,3-butadiene U 0.000342 0.00100
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227177
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-02,03,04
Method Blank (MB)
(MB) R4034634-4 02/15/24 11:28
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Isopropylbenzene U 0.000425 0.00100
p-Isopropyltoluene U 0.000204 0.00100
2-Butanone (MEK)U 0.00468 0.0100
Methylene Chloride U 0.00100 0.00500
4-Methyl-2-pentanone (MIBK)U 0.000950 0.0100
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00498 0.00500
n-Propylbenzene U 0.000206 0.00100
Styrene U 0.000223 0.00100
1,1,1,2-Tetrachloroethane U 0.000296 0.00100
1,1,2,2-Tetrachloroethane U 0.000231 0.00100
1,1,2-Trichlorotrifluoroethane U 0.000426 0.00100
Tetrachloroethene U 0.000325 0.00100
Toluene U 0.00123 0.00500
1,2,3-Trichlorobenzene U 0.000306 0.00100
1,2,4-Trichlorobenzene U 0.000388 0.00100
1,1,1-Trichloroethane U 0.000370 0.00100
1,1,2-Trichloroethane U 0.000425 0.00100
Trichloroethene U 0.000200 0.00100
Trichlorofluoromethane U 0.000356 0.00500
1,2,3-Trichloropropane U 0.000244 0.00250
1,2,4-Trimethylbenzene U 0.000211 0.00100
1,2,3-Trimethylbenzene U 0.000287 0.00100
1,3,5-Trimethylbenzene U 0.000266 0.00100
Vinyl chloride U 0.000226 0.00100
Xylenes, Total U 0.000500 0.00300
(S) Toluene-d8 106 75.0-131
(S) 4-Bromofluorobenzene 90.2 67.0-138
(S) 1,2-Dichloroethane-d4 84.8 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034634-1 02/15/24 08:38 • (LCSD) R4034634-2 02/15/24 08:59
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg %%%%%
Acetone 0.125 0.0994 0.0954 79.5 76.3 10.0-160 4.11 31
Acrylonitrile 0.125 0.0801 0.0772 64.1 61.8 45.0-153 3.69 22
Benzene 0.0250 0.0256 0.0262 102 105 70.0-123 2.32 20
Bromobenzene 0.0250 0.0214 0.0222 85.6 88.8 73.0-121 3.67 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227177
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-02,03,04
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034634-1 02/15/24 08:38 • (LCSD) R4034634-2 02/15/24 08:59
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg %%%%%
Bromodichloromethane 0.0250 0.0229 0.0235 91.6 94.0 73.0-121 2.59 20
Bromoform 0.0250 0.0201 0.0217 80.4 86.8 64.0-132 7.66 20
Bromomethane 0.0250 0.0218 0.0208 87.2 83.2 56.0-147 4.69 20
n-Butylbenzene 0.0250 0.0238 0.0252 95.2 101 68.0-135 5.71 20
sec-Butylbenzene 0.0250 0.0234 0.0240 93.6 96.0 74.0-130 2.53 20
tert-Butylbenzene 0.0250 0.0240 0.0241 96.0 96.4 75.0-127 0.416 20
Carbon tetrachloride 0.0250 0.0348 0.0250 139 100 66.0-128 J4 J3 32.8 20
Chlorobenzene 0.0250 0.0258 0.0256 103 102 76.0-128 0.778 20
Chlorodibromomethane 0.0250 0.0223 0.0234 89.2 93.6 74.0-127 4.81 20
Chloroethane 0.0250 0.0280 0.0255 112 102 61.0-134 9.35 20
Chloroform 0.0250 0.0280 0.0235 112 94.0 72.0-123 17.5 20
Chloromethane 0.0250 0.0244 0.0266 97.6 106 51.0-138 8.63 20
2-Chlorotoluene 0.0250 0.0236 0.0239 94.4 95.6 75.0-124 1.26 20
4-Chlorotoluene 0.0250 0.0227 0.0233 90.8 93.2 75.0-124 2.61 20
1,2-Dibromo-3-Chloropropane 0.0250 0.0207 0.0229 82.8 91.6 59.0-130 10.1 20
1,2-Dibromoethane 0.0250 0.0256 0.0262 102 105 74.0-128 2.32 20
Dibromomethane 0.0250 0.0227 0.0230 90.8 92.0 75.0-122 1.31 20
1,2-Dichlorobenzene 0.0250 0.0241 0.0250 96.4 100 76.0-124 3.67 20
1,3-Dichlorobenzene 0.0250 0.0248 0.0256 99.2 102 76.0-125 3.17 20
1,4-Dichlorobenzene 0.0250 0.0244 0.0256 97.6 102 77.0-121 4.80 20
Dichlorodifluoromethane 0.0250 0.0292 0.0293 117 117 43.0-156 0.342 20
1,1-Dichloroethane 0.0250 0.0296 0.0273 118 109 70.0-127 8.08 20
1,2-Dichloroethane 0.0250 0.0206 0.0213 82.4 85.2 65.0-131 3.34 20
1,1-Dichloroethene 0.0250 0.0273 0.0247 109 98.8 65.0-131 10.0 20
cis-1,2-Dichloroethene 0.0250 0.0264 0.0244 106 97.6 73.0-125 7.87 20
trans-1,2-Dichloroethene 0.0250 0.0292 0.0267 117 107 71.0-125 8.94 20
1,2-Dichloropropane 0.0250 0.0235 0.0251 94.0 100 74.0-125 6.58 20
1,1-Dichloropropene 0.0250 0.0239 0.0239 95.6 95.6 73.0-125 0.000 20
1,3-Dichloropropane 0.0250 0.0216 0.0232 86.4 92.8 80.0-125 7.14 20
cis-1,3-Dichloropropene 0.0250 0.0218 0.0232 87.2 92.8 76.0-127 6.22 20
trans-1,3-Dichloropropene 0.0250 0.0195 0.0217 78.0 86.8 73.0-127 10.7 20
2,2-Dichloropropane 0.0250 0.0298 0.0221 119 88.4 59.0-135 J3 29.7 20
Di-isopropyl ether 0.0250 0.0213 0.0205 85.2 82.0 60.0-136 3.83 20
Ethylbenzene 0.0250 0.0246 0.0246 98.4 98.4 74.0-126 0.000 20
Hexachloro-1,3-butadiene 0.0250 0.0258 0.0271 103 108 57.0-150 4.91 20
Isopropylbenzene 0.0250 0.0246 0.0240 98.4 96.0 72.0-127 2.47 20
p-Isopropyltoluene 0.0250 0.0222 0.0229 88.8 91.6 72.0-133 3.10 20
2-Butanone (MEK)0.125 0.0943 0.0907 75.4 72.6 30.0-160 3.89 24
Methylene Chloride 0.0250 0.0284 0.0270 114 108 68.0-123 5.05 20
4-Methyl-2-pentanone (MIBK)0.125 0.0718 0.0882 57.4 70.6 56.0-143 J3 20.5 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227177
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-02,03,04
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034634-1 02/15/24 08:38 • (LCSD) R4034634-2 02/15/24 08:59
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg %%%%%
Methyl tert-butyl ether 0.0250 0.0241 0.0232 96.4 92.8 66.0-132 3.81 20
Naphthalene 0.0250 0.0208 0.0235 83.2 94.0 59.0-130 12.2 20
n-Propylbenzene 0.0250 0.0225 0.0232 90.0 92.8 74.0-126 3.06 20
Styrene 0.0250 0.0231 0.0234 92.4 93.6 72.0-127 1.29 20
1,1,1,2-Tetrachloroethane 0.0250 0.0239 0.0238 95.6 95.2 74.0-129 0.419 20
1,1,2,2-Tetrachloroethane 0.0250 0.0215 0.0235 86.0 94.0 68.0-128 8.89 20
1,1,2-Trichlorotrifluoroethane 0.0250 0.0263 0.0240 105 96.0 61.0-139 9.15 20
Tetrachloroethene 0.0250 0.0279 0.0277 112 111 70.0-136 0.719 20
Toluene 0.0250 0.0254 0.0261 102 104 75.0-121 2.72 20
1,2,3-Trichlorobenzene 0.0250 0.0252 0.0272 101 109 59.0-139 7.63 20
1,2,4-Trichlorobenzene 0.0250 0.0265 0.0280 106 112 62.0-137 5.50 20
1,1,1-Trichloroethane 0.0250 0.0327 0.0240 131 96.0 69.0-126 J4 J3 30.7 20
1,1,2-Trichloroethane 0.0250 0.0222 0.0233 88.8 93.2 78.0-123 4.84 20
Trichloroethene 0.0250 0.0252 0.0246 101 98.4 76.0-126 2.41 20
Trichlorofluoromethane 0.0250 0.0255 0.0229 102 91.6 61.0-142 10.7 20
1,2,3-Trichloropropane 0.0250 0.0180 0.0201 72.0 80.4 67.0-129 11.0 20
1,2,4-Trimethylbenzene 0.0250 0.0239 0.0248 95.6 99.2 70.0-126 3.70 20
1,2,3-Trimethylbenzene 0.0250 0.0231 0.0239 92.4 95.6 66.0-132 3.40 20
1,3,5-Trimethylbenzene 0.0250 0.0236 0.0241 94.4 96.4 73.0-127 2.10 20
Vinyl chloride 0.0250 0.0301 0.0285 120 114 63.0-134 5.46 20
Xylenes, Total 0.0750 0.0761 0.0756 101 101 72.0-127 0.659 20
(S) Toluene-d8 98.3 100 75.0-131
(S) 4-Bromofluorobenzene 84.3 84.4 67.0-138
(S) 1,2-Dichloroethane-d4 89.4 90.0 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4034634-3 02/15/24 09:42
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
TPH (GC/MS) Low Fraction 5.00 4.07 81.4 52.0-154
(S) Toluene-d8 98.4 75.0-131
(S) 4-Bromofluorobenzene 97.9 67.0-138
(S) 1,2-Dichloroethane-d4 83.9 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227797
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-01
Method Blank (MB)
(MB) R4035729-3 02/16/24 15:03
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH (GC/MS) Low Fraction U 4.58 12.5
Acetone U 0.518 1.25
Acrylonitrile U 0.0505 0.250
Benzene U 0.00938 0.0250
Bromobenzene U 0.00688 0.0250
Bromodichloromethane U 0.0181 0.0250
Bromoform U 0.0106 0.0250
Bromomethane U 0.0293 0.125
n-Butylbenzene U 0.00645 0.0250
sec-Butylbenzene U 0.00503 0.0250
tert-Butylbenzene U 0.00515 0.0250
Carbon tetrachloride U 0.00620 0.0250
Chlorobenzene U 0.00480 0.0250
Chlorodibromomethane U 0.00560 0.0250
Chloroethane U 0.0250 0.125
Chloroform U 0.0258 0.125
Chloromethane U 0.0163 0.0625
2-Chlorotoluene U 0.00563 0.0250
4-Chlorotoluene U 0.0173 0.0250
1,2-Dibromo-3-Chloropropane U 0.0475 0.125
1,2-Dibromoethane U 0.00625 0.0250
Dibromomethane U 0.00875 0.0250
1,2-Dichlorobenzene U 0.0106 0.0250
1,3-Dichlorobenzene U 0.0150 0.0250
1,4-Dichlorobenzene U 0.0208 0.0250
Dichlorodifluoromethane U 0.00718 0.125
1,1-Dichloroethane U 0.00670 0.0250
1,2-Dichloroethane U 0.0113 0.0250
1,1-Dichloroethene U 0.00888 0.0250
cis-1,2-Dichloroethene U 0.0119 0.0250
trans-1,2-Dichloroethene U 0.0125 0.0250
1,2-Dichloropropane U 0.00410 0.0250
1,1-Dichloropropene U 0.00938 0.0250
1,3-Dichloropropane U 0.00563 0.0250
cis-1,3-Dichloropropene U 0.0106 0.0250
trans-1,3-Dichloropropene U 0.0169 0.0250
2,2-Dichloropropane U 0.00938 0.0250
Di-isopropyl ether U 0.00553 0.0250
Ethylbenzene U 0.00750 0.0250
Hexachloro-1,3-butadiene U 0.00855 0.0250
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227797
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-01
Method Blank (MB)
(MB) R4035729-3 02/16/24 15:03
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Isopropylbenzene U 0.0106 0.0250
p-Isopropyltoluene 0.00597 J 0.00510 0.0250
2-Butanone (MEK)U 0.117 0.250
Methylene Chloride U 0.0250 0.125
4-Methyl-2-pentanone (MIBK)U 0.0238 0.250
Methyl tert-butyl ether U 0.00875 0.0250
Naphthalene U 0.125 0.125
n-Propylbenzene U 0.00515 0.0250
Styrene U 0.00558 0.0250
1,1,1,2-Tetrachloroethane U 0.00740 0.0250
1,1,2,2-Tetrachloroethane U 0.00578 0.0250
1,1,2-Trichlorotrifluoroethane U 0.0107 0.0250
Tetrachloroethene U 0.00813 0.0250
Toluene U 0.0308 0.125
1,2,3-Trichlorobenzene U 0.00765 0.0250
1,2,4-Trichlorobenzene U 0.00970 0.0250
1,1,1-Trichloroethane U 0.00925 0.0250
1,1,2-Trichloroethane U 0.0106 0.0250
Trichloroethene U 0.00500 0.0250
Trichlorofluoromethane U 0.00890 0.125
1,2,3-Trichloropropane U 0.00610 0.0625
1,2,4-Trimethylbenzene U 0.00528 0.0250
1,2,3-Trimethylbenzene U 0.00718 0.0250
1,3,5-Trimethylbenzene U 0.00665 0.0250
Vinyl chloride U 0.00565 0.0250
Xylenes, Total U 0.0125 0.0750
(S) Toluene-d8 120 75.0-131
(S) 4-Bromofluorobenzene 98.6 67.0-138
(S) 1,2-Dichloroethane-d4 98.7 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4035729-1 02/16/24 12:38
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
Acetone 0.125 0.0818 65.4 10.0-160
Acrylonitrile 0.125 0.0654 52.3 45.0-153
Benzene 0.0250 0.0203 81.2 70.0-123
Bromobenzene 0.0250 0.0201 80.4 73.0-121
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227797
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-01
Laboratory Control Sample (LCS)
(LCS) R4035729-1 02/16/24 12:38
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
Bromodichloromethane 0.0250 0.0194 77.6 73.0-121
Bromoform 0.0250 0.0204 81.6 64.0-132
Bromomethane 0.0250 0.0182 72.8 56.0-147
n-Butylbenzene 0.0250 0.0212 84.8 68.0-135
sec-Butylbenzene 0.0250 0.0213 85.2 74.0-130
tert-Butylbenzene 0.0250 0.0221 88.4 75.0-127
Carbon tetrachloride 0.0250 0.0227 90.8 66.0-128
Chlorobenzene 0.0250 0.0255 102 76.0-128
Chlorodibromomethane 0.0250 0.0222 88.8 74.0-127
Chloroethane 0.0250 0.0225 90.0 61.0-134
Chloroform 0.0250 0.0226 90.4 72.0-123
Chloromethane 0.0250 0.0196 78.4 51.0-138
2-Chlorotoluene 0.0250 0.0220 88.0 75.0-124
4-Chlorotoluene 0.0250 0.0212 84.8 75.0-124
1,2-Dibromo-3-Chloropropane 0.0250 0.0200 80.0 59.0-130
1,2-Dibromoethane 0.0250 0.0262 105 74.0-128
Dibromomethane 0.0250 0.0196 78.4 75.0-122
1,2-Dichlorobenzene 0.0250 0.0231 92.4 76.0-124
1,3-Dichlorobenzene 0.0250 0.0233 93.2 76.0-125
1,4-Dichlorobenzene 0.0250 0.0229 91.6 77.0-121
Dichlorodifluoromethane 0.0250 0.0217 86.8 43.0-156
1,1-Dichloroethane 0.0250 0.0235 94.0 70.0-127
1,2-Dichloroethane 0.0250 0.0188 75.2 65.0-131
1,1-Dichloroethene 0.0250 0.0221 88.4 65.0-131
cis-1,2-Dichloroethene 0.0250 0.0220 88.0 73.0-125
trans-1,2-Dichloroethene 0.0250 0.0226 90.4 71.0-125
1,2-Dichloropropane 0.0250 0.0200 80.0 74.0-125
1,1-Dichloropropene 0.0250 0.0206 82.4 73.0-125
1,3-Dichloropropane 0.0250 0.0213 85.2 80.0-125
cis-1,3-Dichloropropene 0.0250 0.0180 72.0 76.0-127 J4
trans-1,3-Dichloropropene 0.0250 0.0194 77.6 73.0-127
2,2-Dichloropropane 0.0250 0.0234 93.6 59.0-135
Di-isopropyl ether 0.0250 0.0166 66.4 60.0-136
Ethylbenzene 0.0250 0.0236 94.4 74.0-126
Hexachloro-1,3-butadiene 0.0250 0.0225 90.0 57.0-150
Isopropylbenzene 0.0250 0.0234 93.6 72.0-127
p-Isopropyltoluene 0.0250 0.0197 78.8 72.0-133
2-Butanone (MEK)0.125 0.0511 40.9 30.0-160
Methylene Chloride 0.0250 0.0236 94.4 68.0-123
4-Methyl-2-pentanone (MIBK)0.125 0.0703 56.2 56.0-143
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2227797
Volatile Organic Compounds (GC/MS) by Method 8260B L1704701-01
Laboratory Control Sample (LCS)
(LCS) R4035729-1 02/16/24 12:38
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
Methyl tert-butyl ether 0.0250 0.0198 79.2 66.0-132
Naphthalene 0.0250 0.0216 86.4 59.0-130
n-Propylbenzene 0.0250 0.0204 81.6 74.0-126
Styrene 0.0250 0.0224 89.6 72.0-127
1,1,1,2-Tetrachloroethane 0.0250 0.0228 91.2 74.0-129
1,1,2,2-Tetrachloroethane 0.0250 0.0203 81.2 68.0-128
1,1,2-Trichlorotrifluoroethane 0.0250 0.0215 86.0 61.0-139
Tetrachloroethene 0.0250 0.0252 101 70.0-136
Toluene 0.0250 0.0245 98.0 75.0-121
1,2,3-Trichlorobenzene 0.0250 0.0248 99.2 59.0-139
1,2,4-Trichlorobenzene 0.0250 0.0250 100 62.0-137
1,1,1-Trichloroethane 0.0250 0.0228 91.2 69.0-126
1,1,2-Trichloroethane 0.0250 0.0226 90.4 78.0-123
Trichloroethene 0.0250 0.0208 83.2 76.0-126
Trichlorofluoromethane 0.0250 0.0195 78.0 61.0-142
1,2,3-Trichloropropane 0.0250 0.0176 70.4 67.0-129
1,2,4-Trimethylbenzene 0.0250 0.0226 90.4 70.0-126
1,2,3-Trimethylbenzene 0.0250 0.0222 88.8 66.0-132
1,3,5-Trimethylbenzene 0.0250 0.0214 85.6 73.0-127
Vinyl chloride 0.0250 0.0235 94.0 63.0-134
Xylenes, Total 0.0750 0.0724 96.5 72.0-127
(S) Toluene-d8 102 75.0-131
(S) 4-Bromofluorobenzene 89.5 67.0-138
(S) 1,2-Dichloroethane-d4 84.8 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4035729-2 02/16/24 12:59
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
TPH (GC/MS) Low Fraction 5.00 2.61 52.2 52.0-154
(S) Toluene-d8 101 75.0-131
(S) 4-Bromofluorobenzene 91.9 67.0-138
(S) 1,2-Dichloroethane-d4 81.3 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2225046
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1704701-05,06,07,08
Method Blank (MB)
(MB) R4033911-1 02/14/24 12:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TPH (GC/FID) High Fraction 0.0261 J 0.0247 0.100
(S) o-Terphenyl 65.5 31.0-160
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4033911-2 02/14/24 13:12 • (LCSD) R4033911-3 02/14/24 13:33
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l %%%%%
TPH (GC/FID) High Fraction 1.50 1.41 1.33 94.0 88.7 50.0-150 5.84 20
(S) o-Terphenyl 81.0 79.0 31.0-160
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2225022
Semi-Volatile Organic Compounds (GC) by Method 8015 L1704701-01,02,03,04
Method Blank (MB)
(MB) R4033986-1 02/14/24 15:50
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH (GC/FID) High Fraction U 0.769 4.00
(S) o-Terphenyl 50.3 18.0-148
Laboratory Control Sample (LCS)
(LCS) R4033986-2 02/14/24 16:03
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
TPH (GC/FID) High Fraction 50.0 36.0 72.0 50.0-150
(S) o-Terphenyl 61.7 18.0-148
L1704600-10 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1704600-10 02/14/24 17:29 • (MS) R4033986-3 02/14/24 17:42 • (MSD) R4033986-4 02/14/24 17:54
Spike Amount
(dry)
Original Result
(dry)MS Result (dry)MSD Result
(dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg mg/kg %%%%%
TPH (GC/FID) High Fraction 59.0 34.6 79.5 59.9 76.2 42.9 5 50.0-150 J3 J6 28.2 20
(S) o-Terphenyl 34.5 35.3 18.0-148
Sample Narrative:
OS: Sample resembles laboratory standard for Hydraulic Oil.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
(dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].
MDL Method Detection Limit.
MDL (dry)Method Detection Limit.
RDL Reported Detection Limit.
RDL (dry)Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control
sample. The Original Sample may not be included within the reported SDG.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
B The same analyte is found in the associated blank.
J The identification of the analyte is acceptable; the reported value is an estimate.
J3 The associated batch QC was outside the established quality control range for precision.
J4 The associated batch QC was outside the established quality control range for accuracy.
J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low.
J7 Surrogate recovery cannot be used for control limit evaluation due to dilution.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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ANALYTICAL REPORT
February 19, 2024
Terracon - Salt Lake City, UT
Sample Delivery Group:L1705083
Samples Received:02/13/2024
Project Number:61247015
Description:First Step House
Report To:Andrew Turner
6949 South High Tech Drive
Midvale, UT 84047
Entire Report Reviewed By:
February 19, 2024
[Preliminary Report]
Chris Ward
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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February 19, 2024
Jason Romer
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
SV-1 L1705083-01 5
SV-2 L1705083-02 7
Qc: Quality Control Summary 9
Volatile Organic Compounds (MS) by Method TO-15 9
Gl: Glossary of Terms 13
Al: Accreditations & Locations 14
Sc: Sample Chain of Custody 15
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SV-1 L1705083-01 Air 02/09/24 09:37 02/13/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG2226907 1 02/15/24 16:19 02/15/24 16:19 GH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SV-2 L1705083-02 Air 02/09/24 08:47 02/13/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG2226907 1 02/15/24 16:47 02/15/24 16:47 GH Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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CASE NARRATIVE
Unless qualified or notated within the narrative below, all sample aliquots were received at the correct
temperature, in the proper containers, with the appropriate preservatives, and within method specified
holding times. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental
samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality
Control are within established criteria except where addressed in this case narrative, a
non-conformance form or properly qualified within the sample results. By my digital signature below, I
affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the
potential to affect the quality of the data have been identified by the laboratory, and no information or
data have been knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Chris Ward
Project Manager
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Jason Romer
Project Manager
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SAMPLE RESULTS - 01
L1705083
SV-1
Collected date/time: 02/09/24 09:37
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Acetone 67-64-1 58.10 1.25 2.97 9.95 23.6 1 WG2226907
Allyl chloride 107-05-1 76.53 0.200 0.626 ND ND 1 WG2226907
Benzene 71-43-2 78.10 0.200 0.639 ND ND 1 WG2226907
Benzyl Chloride 100-44-7 127 0.200 1.04 ND ND 1 WG2226907
Bromodichloromethane 75-27-4 164 0.200 1.34 ND ND 1 WG2226907
Bromoform 75-25-2 253 0.600 6.21 ND ND 1 WG2226907
Bromomethane 74-83-9 94.90 0.200 0.776 ND ND 1 WG2226907
1,3-Butadiene 106-99-0 54.10 2.00 4.43 ND ND 1 WG2226907
Carbon disulfide 75-15-0 76.10 0.200 0.622 0.561 1.75 1 WG2226907
Carbon tetrachloride 56-23-5 154 0.200 1.26 ND ND 1 WG2226907
Chlorobenzene 108-90-7 113 0.200 0.924 ND ND 1 WG2226907
Chloroethane 75-00-3 64.50 0.200 0.528 ND ND 1 WG2226907
Chloroform 67-66-3 119 0.200 0.973 ND ND 1 WG2226907
Chloromethane 74-87-3 50.50 0.200 0.413 0.261 0.539 1 WG2226907
2-Chlorotoluene 95-49-8 126 0.200 1.03 ND ND 1 WG2226907
Cyclohexane 110-82-7 84.20 0.200 0.689 ND ND 1 WG2226907
Dibromochloromethane 124-48-1 208 0.200 1.70 ND ND 1 WG2226907
1,2-Dibromoethane 106-93-4 188 0.200 1.54 ND ND 1 WG2226907
1,2-Dichlorobenzene 95-50-1 147 0.200 1.20 ND ND 1 WG2226907
1,3-Dichlorobenzene 541-73-1 147 0.200 1.20 ND ND 1 WG2226907
1,4-Dichlorobenzene 106-46-7 147 0.200 1.20 ND ND 1 WG2226907
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG2226907
1,1-Dichloroethane 75-34-3 98 0.200 0.802 ND ND 1 WG2226907
1,1-Dichloroethene 75-35-4 96.90 0.200 0.793 ND ND 1 WG2226907
cis-1,2-Dichloroethene 156-59-2 96.90 0.200 0.793 ND ND 1 WG2226907
trans-1,2-Dichloroethene 156-60-5 96.90 0.200 0.793 ND ND 1 WG2226907
1,2-Dichloropropane 78-87-5 113 0.200 0.924 ND ND 1 WG2226907
cis-1,3-Dichloropropene 10061-01-5 111 0.200 0.908 ND ND 1 WG2226907
trans-1,3-Dichloropropene 10061-02-6 111 0.200 0.908 ND ND 1 WG2226907
1,4-Dioxane 123-91-1 88.10 0.630 2.27 ND ND 1 WG2226907
Ethanol 64-17-5 46.10 2.50 4.71 91.9 173 1 WG2226907
Ethylbenzene 100-41-4 106 0.200 0.867 ND ND 1 WG2226907
4-Ethyltoluene 622-96-8 120 0.200 0.982 ND ND 1 WG2226907
Trichlorofluoromethane 75-69-4 137.40 0.200 1.12 0.254 1.43 1 WG2226907
Dichlorodifluoromethane 75-71-8 120.92 0.200 0.989 0.491 2.43 1 WG2226907
1,1,2-Trichlorotrifluoroethane 76-13-1 187.40 0.200 1.53 ND ND 1 WG2226907
1,2-Dichlorotetrafluoroethane 76-14-2 171 0.200 1.40 ND ND 1 WG2226907
Heptane 142-82-5 100 0.200 0.818 ND ND 1 WG2226907
Hexachloro-1,3-butadiene 87-68-3 261 0.630 6.73 ND ND 1 WG2226907
n-Hexane 110-54-3 86.20 0.630 2.22 0.820 2.89 1 WG2226907
Isopropylbenzene 98-82-8 120.20 0.200 0.983 ND ND 1 WG2226907
Methylene Chloride 75-09-2 84.90 0.200 0.694 6.63 23.0 1 WG2226907
Methyl Butyl Ketone 591-78-6 100 1.25 5.11 ND ND 1 WG2226907
2-Butanone (MEK)78-93-3 72.10 1.25 3.69 ND ND 1 WG2226907
4-Methyl-2-pentanone (MIBK)108-10-1 100.10 1.25 5.12 ND ND 1 WG2226907
Methyl methacrylate 80-62-6 100.12 0.200 0.819 ND ND 1 WG2226907
MTBE 1634-04-4 88.10 0.200 0.721 ND ND 1 WG2226907
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG2226907
2-Propanol 67-63-0 60.10 1.25 3.07 10.4 25.6 1 WG2226907
Propene 115-07-1 42.10 1.25 2.15 ND ND 1 WG2226907
Styrene 100-42-5 104 0.200 0.851 ND ND 1 WG2226907
1,1,2,2-Tetrachloroethane 79-34-5 168 0.200 1.37 ND ND 1 WG2226907
Tetrachloroethylene 127-18-4 166 0.200 1.36 ND ND 1 WG2226907
Tetrahydrofuran 109-99-9 72.10 0.200 0.590 ND ND 1 WG2226907
Toluene 108-88-3 92.10 0.500 1.88 0.765 2.88 1 WG2226907
1,2,4-Trichlorobenzene 120-82-1 181 0.630 4.66 ND ND 1 WG2226907
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 01
L1705083
SV-1
Collected date/time: 02/09/24 09:37
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1,1-Trichloroethane 71-55-6 133 0.200 1.09 ND ND 1 WG2226907
1,1,2-Trichloroethane 79-00-5 133 0.200 1.09 ND ND 1 WG2226907
Trichloroethylene 79-01-6 131 0.200 1.07 ND ND 1 WG2226907
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 ND ND 1 WG2226907
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 ND ND 1 WG2226907
2,2,4-Trimethylpentane 540-84-1 114.22 0.200 0.934 ND ND 1 WG2226907
Vinyl chloride 75-01-4 62.50 0.200 0.511 ND ND 1 WG2226907
Vinyl Bromide 593-60-2 106.95 0.200 0.875 ND ND 1 WG2226907
Vinyl acetate 108-05-4 86.10 0.630 2.22 ND ND 1 WG2226907
Xylenes, Total 1330-20-7 106.16 0.600 2.61 0.817 3.55 1 WG2226907
m&p-Xylene 179601-23-1 106 0.400 1.73 0.616 2.67 1 WG2226907
o-Xylene 95-47-6 106 0.200 0.867 0.201 0.871 1 WG2226907
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 95.3 WG2226907
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1705083
SV-2
Collected date/time: 02/09/24 08:47
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Acetone 67-64-1 58.10 1.25 2.97 23.7 56.3 1 WG2226907
Allyl chloride 107-05-1 76.53 0.200 0.626 ND ND 1 WG2226907
Benzene 71-43-2 78.10 0.200 0.639 ND ND 1 WG2226907
Benzyl Chloride 100-44-7 127 0.200 1.04 ND ND 1 WG2226907
Bromodichloromethane 75-27-4 164 0.200 1.34 ND ND 1 WG2226907
Bromoform 75-25-2 253 0.600 6.21 ND ND 1 WG2226907
Bromomethane 74-83-9 94.90 0.200 0.776 ND ND 1 WG2226907
1,3-Butadiene 106-99-0 54.10 2.00 4.43 ND ND 1 WG2226907
Carbon disulfide 75-15-0 76.10 0.200 0.622 0.494 1.54 1 WG2226907
Carbon tetrachloride 56-23-5 154 0.200 1.26 ND ND 1 WG2226907
Chlorobenzene 108-90-7 113 0.200 0.924 ND ND 1 WG2226907
Chloroethane 75-00-3 64.50 0.200 0.528 ND ND 1 WG2226907
Chloroform 67-66-3 119 0.200 0.973 ND ND 1 WG2226907
Chloromethane 74-87-3 50.50 0.200 0.413 0.413 0.853 1 WG2226907
2-Chlorotoluene 95-49-8 126 0.200 1.03 ND ND 1 WG2226907
Cyclohexane 110-82-7 84.20 0.200 0.689 ND ND 1 WG2226907
Dibromochloromethane 124-48-1 208 0.200 1.70 ND ND 1 WG2226907
1,2-Dibromoethane 106-93-4 188 0.200 1.54 ND ND 1 WG2226907
1,2-Dichlorobenzene 95-50-1 147 0.200 1.20 ND ND 1 WG2226907
1,3-Dichlorobenzene 541-73-1 147 0.200 1.20 ND ND 1 WG2226907
1,4-Dichlorobenzene 106-46-7 147 0.200 1.20 ND ND 1 WG2226907
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG2226907
1,1-Dichloroethane 75-34-3 98 0.200 0.802 0.840 3.37 1 WG2226907
1,1-Dichloroethene 75-35-4 96.90 0.200 0.793 ND ND 1 WG2226907
cis-1,2-Dichloroethene 156-59-2 96.90 0.200 0.793 ND ND 1 WG2226907
trans-1,2-Dichloroethene 156-60-5 96.90 0.200 0.793 ND ND 1 WG2226907
1,2-Dichloropropane 78-87-5 113 0.200 0.924 ND ND 1 WG2226907
cis-1,3-Dichloropropene 10061-01-5 111 0.200 0.908 ND ND 1 WG2226907
trans-1,3-Dichloropropene 10061-02-6 111 0.200 0.908 ND ND 1 WG2226907
1,4-Dioxane 123-91-1 88.10 0.630 2.27 ND ND 1 WG2226907
Ethanol 64-17-5 46.10 2.50 4.71 99.2 187 1 WG2226907
Ethylbenzene 100-41-4 106 0.200 0.867 0.324 1.40 1 WG2226907
4-Ethyltoluene 622-96-8 120 0.200 0.982 ND ND 1 WG2226907
Trichlorofluoromethane 75-69-4 137.40 0.200 1.12 0.488 2.74 1 WG2226907
Dichlorodifluoromethane 75-71-8 120.92 0.200 0.989 0.546 2.70 1 WG2226907
1,1,2-Trichlorotrifluoroethane 76-13-1 187.40 0.200 1.53 ND ND 1 WG2226907
1,2-Dichlorotetrafluoroethane 76-14-2 171 0.200 1.40 ND ND 1 WG2226907
Heptane 142-82-5 100 0.200 0.818 0.231 0.945 1 WG2226907
Hexachloro-1,3-butadiene 87-68-3 261 0.630 6.73 ND ND 1 WG2226907
n-Hexane 110-54-3 86.20 0.630 2.22 ND ND 1 WG2226907
Isopropylbenzene 98-82-8 120.20 0.200 0.983 ND ND 1 WG2226907
Methylene Chloride 75-09-2 84.90 0.200 0.694 0.702 2.44 1 WG2226907
Methyl Butyl Ketone 591-78-6 100 1.25 5.11 ND ND 1 WG2226907
2-Butanone (MEK)78-93-3 72.10 1.25 3.69 1.92 5.66 1 WG2226907
4-Methyl-2-pentanone (MIBK)108-10-1 100.10 1.25 5.12 ND ND 1 WG2226907
Methyl methacrylate 80-62-6 100.12 0.200 0.819 ND ND 1 WG2226907
MTBE 1634-04-4 88.10 0.200 0.721 ND ND 1 WG2226907
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG2226907
2-Propanol 67-63-0 60.10 1.25 3.07 7.48 18.4 1 WG2226907
Propene 115-07-1 42.10 1.25 2.15 2.20 3.79 1 WG2226907
Styrene 100-42-5 104 0.200 0.851 ND ND 1 WG2226907
1,1,2,2-Tetrachloroethane 79-34-5 168 0.200 1.37 ND ND 1 WG2226907
Tetrachloroethylene 127-18-4 166 0.200 1.36 1.18 8.01 1 WG2226907
Tetrahydrofuran 109-99-9 72.10 0.200 0.590 ND ND 1 WG2226907
Toluene 108-88-3 92.10 0.500 1.88 0.849 3.20 1 WG2226907
1,2,4-Trichlorobenzene 120-82-1 181 0.630 4.66 ND ND 1 WG2226907
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1705083
SV-2
Collected date/time: 02/09/24 08:47
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1,1-Trichloroethane 71-55-6 133 0.200 1.09 0.589 3.20 1 WG2226907
1,1,2-Trichloroethane 79-00-5 133 0.200 1.09 ND ND 1 WG2226907
Trichloroethylene 79-01-6 131 0.200 1.07 ND ND 1 WG2226907
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 ND ND 1 WG2226907
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 ND ND 1 WG2226907
2,2,4-Trimethylpentane 540-84-1 114.22 0.200 0.934 ND ND 1 WG2226907
Vinyl chloride 75-01-4 62.50 0.200 0.511 ND ND 1 WG2226907
Vinyl Bromide 593-60-2 106.95 0.200 0.875 ND ND 1 WG2226907
Vinyl acetate 108-05-4 86.10 0.630 2.22 ND ND 1 WG2226907
Xylenes, Total 1330-20-7 106.16 0.600 2.61 1.37 5.95 1 WG2226907
m&p-Xylene 179601-23-1 106 0.400 1.73 1.03 4.47 1 WG2226907
o-Xylene 95-47-6 106 0.200 0.867 0.337 1.46 1 WG2226907
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 100 WG2226907
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226907
Volatile Organic Compounds (MS) by Method TO-15 L1705083-01,02
Method Blank (MB)
(MB) R4034280-3 02/15/24 09:43
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Acetone U 0.584 1.25
Allyl chloride U 0.114 0.200
Benzene U 0.0715 0.200
Benzyl Chloride U 0.0598 0.200
Bromodichloromethane U 0.0702 0.200
Bromoform U 0.0732 0.600
Bromomethane U 0.0982 0.200
1,3-Butadiene U 0.104 2.00
Carbon disulfide U 0.102 0.200
Carbon tetrachloride U 0.0732 0.200
Chlorobenzene U 0.0832 0.200
Chloroethane U 0.0996 0.200
Chloroform U 0.0717 0.200
Chloromethane U 0.103 0.200
2-Chlorotoluene U 0.0828 0.200
Cyclohexane U 0.0753 0.200
Dibromochloromethane U 0.0727 0.200
1,2-Dibromoethane U 0.0721 0.200
1,2-Dichlorobenzene U 0.128 0.200
1,3-Dichlorobenzene U 0.182 0.200
1,4-Dichlorobenzene U 0.0557 0.200
1,2-Dichloroethane U 0.0700 0.200
1,1-Dichloroethane U 0.0723 0.200
1,1-Dichloroethene U 0.0762 0.200
cis-1,2-Dichloroethene U 0.0784 0.200
trans-1,2-Dichloroethene U 0.0673 0.200
1,2-Dichloropropane U 0.0760 0.200
cis-1,3-Dichloropropene U 0.0689 0.200
trans-1,3-Dichloropropene U 0.0728 0.200
1,4-Dioxane U 0.0833 0.630
Ethanol 0.478 J 0.265 2.50
Ethylbenzene U 0.0835 0.200
4-Ethyltoluene U 0.0783 0.200
Trichlorofluoromethane U 0.0819 0.200
Dichlorodifluoromethane U 0.137 0.200
1,1,2-Trichlorotrifluoroethane U 0.0793 0.200
1,2-Dichlorotetrafluoroethane U 0.0890 0.200
Heptane U 0.104 0.200
Hexachloro-1,3-butadiene U 0.105 0.630
n-Hexane U 0.206 0.630
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226907
Volatile Organic Compounds (MS) by Method TO-15 L1705083-01,02
Method Blank (MB)
(MB) R4034280-3 02/15/24 09:43
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Isopropylbenzene U 0.0777 0.200
Methylene Chloride U 0.0979 0.200
Methyl Butyl Ketone U 0.133 1.25
2-Butanone (MEK)U 0.0814 1.25
4-Methyl-2-pentanone (MIBK)U 0.0765 1.25
Methyl methacrylate U 0.0876 0.200
MTBE U 0.0647 0.200
Naphthalene U 0.350 0.630
2-Propanol U 0.264 1.25
Propene U 0.0932 1.25
Styrene U 0.0788 0.200
1,1,2,2-Tetrachloroethane U 0.0743 0.200
Tetrachloroethylene U 0.0814 0.200
Tetrahydrofuran U 0.0734 0.200
Toluene U 0.0870 0.500
1,2,4-Trichlorobenzene U 0.148 0.630
1,1,1-Trichloroethane U 0.0736 0.200
1,1,2-Trichloroethane U 0.0775 0.200
Trichloroethylene U 0.0680 0.200
1,2,4-Trimethylbenzene U 0.0764 0.200
1,3,5-Trimethylbenzene U 0.0779 0.200
2,2,4-Trimethylpentane U 0.133 0.200
Vinyl chloride U 0.0949 0.200
Vinyl Bromide U 0.0852 0.200
Vinyl acetate U 0.116 0.630
Xylenes, Total U 0.135 0.600
m&p-Xylene U 0.135 0.400
o-Xylene U 0.0828 0.200
(S) 1,4-Bromofluorobenzene 94.7 60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034280-1 02/15/24 08:45 • (LCSD) R4034280-2 02/15/24 09:15
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
Acetone 3.75 4.04 4.02 108 107 70.0-130 0.496 25
Allyl chloride 3.75 4.01 4.11 107 110 70.0-130 2.46 25
Benzene 3.75 3.81 3.87 102 103 70.0-130 1.56 25
Benzyl Chloride 3.75 4.65 4.74 124 126 70.0-152 1.92 25
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226907
Volatile Organic Compounds (MS) by Method TO-15 L1705083-01,02
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034280-1 02/15/24 08:45 • (LCSD) R4034280-2 02/15/24 09:15
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
Bromodichloromethane 3.75 3.74 3.77 99.7 101 70.0-130 0.799 25
Bromoform 3.75 3.43 3.55 91.5 94.7 70.0-130 3.44 25
Bromomethane 3.75 3.96 4.08 106 109 70.0-130 2.99 25
1,3-Butadiene 3.75 4.03 4.13 107 110 70.0-130 2.45 25
Carbon disulfide 3.75 3.91 3.94 104 105 70.0-130 0.764 25
Carbon tetrachloride 3.75 3.84 3.86 102 103 70.0-130 0.519 25
Chlorobenzene 3.75 3.74 3.84 99.7 102 70.0-130 2.64 25
Chloroethane 3.75 4.05 4.06 108 108 70.0-130 0.247 25
Chloroform 3.75 3.91 3.91 104 104 70.0-130 0.000 25
Chloromethane 3.75 3.95 3.94 105 105 70.0-130 0.253 25
2-Chlorotoluene 3.75 3.93 4.00 105 107 70.0-130 1.77 25
Cyclohexane 3.75 3.89 3.99 104 106 70.0-130 2.54 25
Dibromochloromethane 3.75 3.60 3.65 96.0 97.3 70.0-130 1.38 25
1,2-Dibromoethane 3.75 3.76 3.89 100 104 70.0-130 3.40 25
1,2-Dichlorobenzene 3.75 3.90 3.94 104 105 70.0-130 1.02 25
1,3-Dichlorobenzene 3.75 3.95 3.98 105 106 70.0-130 0.757 25
1,4-Dichlorobenzene 3.75 4.00 4.03 107 107 70.0-130 0.747 25
1,2-Dichloroethane 3.75 3.92 3.90 105 104 70.0-130 0.512 25
1,1-Dichloroethane 3.75 3.95 3.98 105 106 70.0-130 0.757 25
1,1-Dichloroethene 3.75 4.05 4.07 108 109 70.0-130 0.493 25
cis-1,2-Dichloroethene 3.75 3.92 3.97 105 106 70.0-130 1.27 25
trans-1,2-Dichloroethene 3.75 4.03 4.09 107 109 70.0-130 1.48 25
1,2-Dichloropropane 3.75 3.83 3.83 102 102 70.0-130 0.000 25
cis-1,3-Dichloropropene 3.75 3.86 3.87 103 103 70.0-130 0.259 25
trans-1,3-Dichloropropene 3.75 3.88 3.98 103 106 70.0-130 2.54 25
1,4-Dioxane 3.75 3.75 3.87 100 103 70.0-140 3.15 25
Ethanol 3.75 3.86 3.79 103 101 55.0-148 1.83 25
Ethylbenzene 3.75 3.92 3.98 105 106 70.0-130 1.52 25
4-Ethyltoluene 3.75 4.08 4.21 109 112 70.0-130 3.14 25
Trichlorofluoromethane 3.75 4.01 4.00 107 107 70.0-130 0.250 25
Dichlorodifluoromethane 3.75 3.99 4.02 106 107 64.0-139 0.749 25
1,1,2-Trichlorotrifluoroethane 3.75 3.91 3.96 104 106 70.0-130 1.27 25
1,2-Dichlorotetrafluoroethane 3.75 3.98 3.99 106 106 70.0-130 0.251 25
Heptane 3.75 3.95 3.95 105 105 70.0-130 0.000 25
Hexachloro-1,3-butadiene 3.75 3.72 3.72 99.2 99.2 70.0-151 0.000 25
n-Hexane 3.75 3.84 3.93 102 105 70.0-130 2.32 25
Isopropylbenzene 3.75 3.97 3.99 106 106 70.0-130 0.503 25
Methylene Chloride 3.75 3.95 4.00 105 107 70.0-130 1.26 25
Methyl Butyl Ketone 3.75 4.04 4.02 108 107 70.0-149 0.496 25
2-Butanone (MEK)3.75 3.97 4.07 106 109 70.0-130 2.49 25
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2226907
Volatile Organic Compounds (MS) by Method TO-15 L1705083-01,02
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4034280-1 02/15/24 08:45 • (LCSD) R4034280-2 02/15/24 09:15
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
4-Methyl-2-pentanone (MIBK)3.75 3.97 3.92 106 105 70.0-139 1.27 25
Methyl methacrylate 3.75 3.79 3.86 101 103 70.0-130 1.83 25
MTBE 3.75 4.13 4.11 110 110 70.0-130 0.485 25
Naphthalene 3.75 4.48 4.46 119 119 70.0-159 0.447 25
2-Propanol 3.75 3.87 3.91 103 104 70.0-139 1.03 25
Propene 3.75 4.05 3.98 108 106 64.0-144 1.74 25
Styrene 3.75 4.03 4.09 107 109 70.0-130 1.48 25
1,1,2,2-Tetrachloroethane 3.75 3.78 3.84 101 102 70.0-130 1.57 25
Tetrachloroethylene 3.75 3.75 3.79 100 101 70.0-130 1.06 25
Tetrahydrofuran 3.75 3.82 3.91 102 104 70.0-137 2.33 25
Toluene 3.75 3.86 3.84 103 102 70.0-130 0.519 25
1,2,4-Trichlorobenzene 3.75 4.47 4.51 119 120 70.0-160 0.891 25
1,1,1-Trichloroethane 3.75 3.90 3.90 104 104 70.0-130 0.000 25
1,1,2-Trichloroethane 3.75 3.75 3.82 100 102 70.0-130 1.85 25
Trichloroethylene 3.75 3.79 3.84 101 102 70.0-130 1.31 25
1,2,4-Trimethylbenzene 3.75 4.09 4.14 109 110 70.0-130 1.22 25
1,3,5-Trimethylbenzene 3.75 4.12 4.19 110 112 70.0-130 1.68 25
2,2,4-Trimethylpentane 3.75 4.01 4.10 107 109 70.0-130 2.22 25
Vinyl chloride 3.75 4.08 4.12 109 110 70.0-130 0.976 25
Vinyl Bromide 3.75 4.01 4.04 107 108 70.0-130 0.745 25
Vinyl acetate 3.75 3.81 3.87 102 103 70.0-130 1.56 25
Xylenes, Total 11.3 12.1 12.2 107 108 70.0-130 0.823 25
m&p-Xylene 7.50 8.01 8.11 107 108 70.0-130 1.24 25
o-Xylene 3.75 4.07 4.09 109 109 70.0-130 0.490 25
(S) 1,4-Bromofluorobenzene 100 101 60.0-140
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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