DSHW-2023-207337 - 0901a0688124dfb6

State of Utah Mail - 953 South Edison Salt Lake
Deq submit <[e-mail]>
953 South Edison Salt Lake
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David W. Christiansen < Tue, Aug 1, 2023 at 7:56 PM
To: [e-mail]
Attached is the 953 South Edison, Salt Lake City report.
Regards,
David W. Christiansen
Applied Geoscience & Environmental
8701-763-9884
PH II 953 Edison UT JULY 2023_DEQ VERSION 6.0 (revision45).pdf
9270K
DSHW-2023-207337
PHASE II ENVIRONMENTAL SITE ASSESSMENT
LIMITED SUBSURFACE INVESTIGATION REPORT
AUTO SHOP REPAIR FACILITY
953 EDISON STREET
SALT LAKE CITY, UTAH 84111
Prepared For
MR. JONAH HORNSBY
1075 EAST HOLLYWOOD AVENUE
SALT LAKE CITY UT 84105
Prepared By
APPLIED GEOSCIENCE & ENVIRONMENTAL
5455 WEST 10030 NORTH
HIGHLAND, UTAH 84003
[phone]
AG&E Project Number: WDM-103D-UT
Date Issued: August 1, 2023
VERSION 6.0
Parcel No. 16-07-180-015-0000
Parcel No. 16-07-180-014-0000
i

TABLE OF CONTENTS
1.0 INTRODUCTION................................................................................................................1
1.1 PURPOSE AND OBJECTIVES ........................................................................................1
2.0 BACKGROUND INFORMATION ...................................................................................1
2.1 DEQ Subsurface Investigation of The Edison Street Plume ..............................................2
3.0 METHODOLOGY ..............................................................................................................2
3.1 Sampling Locations ............................................................................................................2
3.2 Soil Sampling .....................................................................................................................3
3.3 Monitoring well Installation ...............................................................................................3
3.4 Groundwater Sampling .......................................................................................................3
3.5 Vapor Point Locations and Vapor Sampling ......................................................................4
3.6 Exposure and Risk Standards .............................................................................................5
4.0 RESULTS .............................................................................................................................6
4.1 Soil Analytical Results .......................................................................................................6
4.2 Groundwater Elevations .....................................................................................................6
4.3 Groundwater Analytical results ..........................................................................................8
4.4 Vapor Analytical Results ...................................................................................................9
4.4.1 Indoor Air Quality Sample: .....................................................................................11
4.4.2 Sub-Slab Attenuation Factor (AFss) ........................................................................11
5.0 INCOMPLETE VAPOR INTRUSION PATHWAY – MULTIPLE LINES OF
EVIDENCE (MLE) ......................................................................................................................12
6.0 FATE AND TRANSPORT OF CIS-1,2-DICHLOROETHENE ...................................13
7.0 DISCUSSION .....................................................................................................................14
7.1 DEQ Comments and responses ........................................ Error! Bookmark not defined.
7.2 West Parcel No 015 (buildings, west parking) .................................................................15
7.3 East Parcel No 014 ( east parking lot) ..............................................................................17
8.0 CONCLUSIONS AND RECOMMENDATIONS ...........................................................18
8.1 DEQ Assessment of the Edison Street Plume ..................................................................18
8.2 West Parcel No 015 (building, west parking) ...................................................................18
8.3 East Parcel No 014 ( east parking lot) ..............................................................................18
9.0 SUMMARY ........................................................................................................................18
10.0 APPENDICES ....................................................................................................................19

1
1.0 INTRODUCTION
Applied Geoscience & Environmental (AG&E) conducted a Limited Phase II Subsurface Investigation
(LSI) in July of 2021, October of 2021, and March of 2022 which included subslab vapor sampling,
installation of five groundwater monitoring wells, indoor air quality sampling and static water level
monitoring for the auto shop repair facility located at 953 South Edison Street in Salt Lake City, Utah
(subject property or the site) at the request of Mr. Jonah Hornsby (Client). Groundwater sampling and
water table elevation measurements were again measured in April and May of 2023. This work has been
completed to further evaluate tetrachloroethene (PCE) and associated daughter products, and benzene
which were discovered in groundwater during previous LSI’s conducted in September 2019 and February
2020.
The subject property consists of two (2) parcels, Parcel No. 1607-180-015-0000 (“West Parcel” or “Parcel
015), which is developed with an auto repair facility; and Parcel No. 1607-180-014-0000 (“East Parcel”
or “Parcel 014”), which consists of an asphalt paved parking lot. The two parcels are separated by a
public vehicle access alley way (Parcel Map Appendix A Figure6) and are assessed separately with regard
to risk exposure scenarios evaluation herein.
In the final section of this report (see Section 7.0,Recommendations), each parcel is evaluated
independently in terms of “site closure” possibilities, separately for the West Parcel (Parcel 015) and the
East Parcel (Parcel 014).
1.1 PURPOSE AND OBJECTIVES
The purpose of the current study is to assess the exposure to human health and the risk to the
environment due to target constituents of concern at the East and West parcels.
The general objectives of this investigation include:
• Determine soil contaminant levels during soil borings and monitoring well installation.
• Determine the groundwater flow directions and the groundwater table configuration based on
depth to water measurements, surveyed top of casing (TOC) elevations, and surveyed well
locations of the installed groundwater monitoring wells (MW-1 to MW-5).
• Determine the extent of PCE, cis-1,2-DCE, and benzene in groundwater on the subject property.
• Determine the potential for vapor intrusion of constituents of concern including PCE, PCE
daughter products, and benzene inside the building by collecting sub-slab vapor samples and
comparing the results to the United States Environmental Protection Agency(US EPA) Vapor
Intrusion Screening Levels (VISLs) for industrial facilities; and to a limited extent, residential
usage.
• Conduct a preliminary indoor air quality study to assess the auto shop indoor air quality.
2.0 BACKGROUND INFORMATION
Based on a Phase I Environmental subject property Assessment (ESA) report dated July 17, 2019
prepared for the subject property by AG&E, it was recommended that a Phase II LSI be performed in
order to determine whether or not the former auto shop repair facility had adversely impacted the
subject property with its historical auto shop repair facility activities associated with a used oil
underground storage tank (UST) and two oil/water separators. The Phase II LSI conducted on
September 20, 2019 found PCE and cis-1,2-dichloroethene (cis-1,2-DCE), a daughter product of PCE,
in groundwater above the U.S. Environmental Protection Agency (EPA) Maximum Contaminant
Levels (MCLs). A second Phase II LSI conducted in September 2019 foundcis-1,2-DCE in
groundwater. In addition, the site located at 933 South Edison Street approximately105 feet to the

2
north of the subject property is known to have PCE, TCE, cis-1,2-DCE, and vinyl chloride in
groundwater likely as a result of historical dry cleaning operations on that site. A boring was emplaced
in the alleyway just to the northeast of the subject property where the cis-1,2-DCE was detected above
MCLs, indicating the possibility it may be coming from the site to the north. Benzene was detected
in groundwater to the east of the building and on the west end of the parking lot in the September 2020
LSI (Section 4.2).
2.1 DEQ SUBSURFACE INVESTIGATION OF THE EDISON STREET PLUME
A Site Inspection Work Plan (SI) has been prepared by the Department of Environmental Response
and Remediation (DERR) to investigate the Edison Street Plume. The study area and sample locations
include sites located north and east of the subject property; however, no sampling is planned for the
subject property other than the possible, routine opportunity samples (DEQ, September 2021). This
DERR/US EPA SI is a separate study from this current Phase II LSI presented herein.
The following is a direct quote or excerpt from the SI workplan (2021) as follows:
“Under authority of the Comprehensive Environmental Response, Compensation and Liability Act
(CERCLA) of 1980, the Superfund Amendments and Reauthorization Act (SARA) of 1986, and in
accordance with the National Oil and Hazardous Substances Pollution Contingency Plan (NCP), the
Utah Department of Environmental Quality (UDEQ), Division of Environmental Response and
Remediation (DERR) has prepared this Abbreviated subject property Sampling Work Plan (Work
Plan) as part of the subject property Inspection (SI) of the Edison Street Plume, UTN000821003,
(referred to as the “subject property”) in Salt Lake City, Salt Lake County, Utah. This SI will be
conducted under a cooperative agreement between the DERR and the United States Environmental
Protection Agency, Region 8 (EPA)”.
“DERR completed a Preliminary Assessment (PA) for the Edison Street Plume in March 2020. This
PA was initiated because chlorinated solvents, including tetrachloroethene (PCE), trichloroethene
(TCE), cis-1,2-dichloroethene (cis-1,2-DCE), and vinyl chloride (VC), were detected in groundwater
at the subject property during a subsurface investigation in 2014. Information used to prepare this
Work Plan was obtained from the PA report, field observations during a site visit, and from additional
sources cited within this document.”
3.0 METHODOLOGY
3.1 SAMPLING LOCATIONS
This current Phase II LSI consisted of five (5) soil boring locations. The soil borings were identified
as SB-8 to SB-12 and were advanced at the subject property by Direct Push Services, LLC (Direct
Push) using a track mounted Geoprobe™ push probe rig. The soil borings were emplaced to a depth
of 15 feet below ground surface (bgs). Each boring was inspected for visible evidence of
contamination and to provide data on subsurface soil type, and soil boring logs were completed to
record the lithology, sample recovery, and other field observations. Field screening results obtained
during soil boring and geology logging activities, included visual and odoriferous observations along
with vapor screening using a MiniRae 3000, parts per million (ppm) range photoionization detector
(PID) vapor testing for potential evidence of volatile organic compounds (VOCs) contamination. The
soil boring locations are shown in Appendix A and the soil boring logs are located in Appendix C.

3
3.2 SOIL SAMPLING
On July 8, 2021 continuous core soil samples were extracted from the borings with five-foot long
stainless-steel 1½-inch inner diameter hollow stainless steel sampling rods lined with disposable
acetate sleeves. One soil sample was collected from each boring within the capillary fringe. In order
to prevent any cross-contamination and to protect the integrity of each sample, prior to removing the
soil sample from the plastic sleeve, a clean pair of nitrile gloves were donned by the sampler to remove
the sample from the plastic sleeve and then placed in clear, silica glass sample jars. This was
conducted rapidly so as to minimize volatilization. The sample jars were sealed by a Teflon-lined,
threaded plastic cap. The soil samples were labeled (i.e., location, depth, date, time, sampler's initials)
and immediately placed in an ice-filled insulated cooler for transportation to Chemtech – Ford
Analytical Laboratory, located at 9632 South 500 West Sandy, Utah 84070, under proper chain of
custody protocol. Chemtech – Ford Analytical Laboratory is a State of Utah Department of
Environmental Quality (UDEQ) certified laboratory. Mr. David Christiansen of AG&E personally
delivered the samples under proper chain of custody protocol to the laboratory on July 8, 2021. The
soil samples collected were analyzed for VOCs using US EPA 8260B/C /5035A.
3.3 MONITORING WELL INSTALLATION
All of the five (5) soil borings were converted to groundwater monitoring wells to evaluate and monitor
groundwater conditions. The monitor wells are identified as MW-1 to MW-5 and were constructed as
follows:
• Installation of 10 feet of 2-inch diameter, 0.010-inch machine slotted polyvinyl chloride (PVC)
well screen with a threaded bottom cap from 15 feet bgs up to 5 feet bgs;
• Installation of 2-inch diameter, threaded, flush-joint blank PVC riser pipe from approximately 5
feet bgs to a couple inches below the ground surface;
• Addition of pre-sieved 10/20 grade silica sand for annular sand pack around the well screen from
the bottom of the boring to approximately one (1) foot above the top of the well screen;
• Placement of approximately 3 to 3.5 feet of hydrated bentonite pellets above the sand pack; and;
• Addition of cement to the surface and construction of an 8-inch diameter traffic rated flush
mounted well monument.
• The TOC of the monitoring wells were surveyed relative to a datum point. The survey data and
depth-to-water data was used to calculate the elevation of the static water levels and the resultant
groundwater flow direction at the subject property at the time of the study in July 2021.
• The depth to water was measured again in March 2022 to evaluate seasonal water table changes.
• Groundwater elevations and contours were first evaluated and drafted manually; and then the
computer program 3d Field was used to draw contours using 3d Field “minimal curvature” method.
3.4 GROUNDWATER SAMPLING
On July 21, 2021 the monitor wells (MW-1 to MW-5) were developed and allowed to equilibrate for
at least 24 hours after development prior to purging and sampling. Groundwater was sampled on July
27, 2021. Prior to sampling, each monitoring well was purged of a minimum of three well casing
volumes of groundwater or until purged dry. Groundwater samples were collected from each monitor
well identified as MW-1 to MW-5. Subsequent to sufficient recharge, one groundwater sample was
collected from each monitoring well using either new 3/8 inch Teflon tubing connected to a peristaltic
pump or from disposable bailers. MW-1, MW-2 and MW-3 were sampled with bailers and MW-4
and MW-5 were sampled with a low flow peristaltic pump. The low flow pump sampling flow rate
ranged from 100 milliliters (mls) per minute to 200 mls per minute depending on the productivity of
the well. This is based on the GeoPump II stated flow rate of 1.67 mls per revolution on the pump and

4
is controlled by a potentiometer with a range of 30 to 300 revolutions per minute (rpms). Regardless,
flow rates were reduced to a point at which there was no observable perturbation or trauma to the
water sample as evidenced by the elimination of rippling of the water or bubbles being added to the
water.
In 2023, two (2) more sampling events were conducted in the spring. All sampling was conducted
with bailers at that time. Low flow VOC bailer sampling tips were used to collect samples to minimize
perturbation of the water samples. The groundwater samples collected for VOCs were dispensed into
40-milliliter (ml) clear glass vials with Teflon® septa caps which were treated with a hydrochloric
acid preservative by the laboratory. The vials were filled slowly until a meniscus formed at the top of
each vial, then each vial was sealed with a septa cap. This procedure eliminates headspace within the
vials. The sample jars were then labeled (i.e., location, date, time, sampler's initials) and immediately
placed in an ice-filled insulated cooler for transportation to Chemtech-Ford Laboratory, located at
9632 South 500 West, Sandy, Utah under proper chain of custody protocol. Mr. David Christiansen
of AG&E personally delivered the samples under proper chain of custody protocol to the laboratory.
The groundwater samples collected were analyzed for VOCs using US EPA Method 8260B/C/5030A.
It is recognized that duplicates are typically collected for each sampling event regardless of the sample
population and for every 10 samples; however, for the subject property, it was evaluated as to whether
to prolong sampling with unproductive wells in a busy alley way and collect duplicates or terminate
field work and transport the samples already collected to the lab in order to maintain the integrity of
the samples. Regardless, duplicates will be collected if there is a next sampling event, if any, provided
the productivity of the wells allows for reasonable collection of the additional volume.
3.5 VAPOR POINT LOCATIONS AND VAPOR SAMPLING
Four (4) vapor points were driven into holes cored through the concrete slab inside three (3) different
sections of the building located on the West Parcel No 015: The main shop area, the back storage
area, and the auto body shop (Figure 3 Spatial Relationship to Edison Street Plume). The total area
of the building is approximately 9,400 square feet. Vapor points were placed at the west central section
of the northwest auto body shop (VP-1), at the northeast (VP-2) and southwest (VP-3) areas of the
storage areas of the building, and finally in the center (VP-4) of the main shop. O-rings supplied by
the manufacturer were forced around the vapor point at the slab surface to prevent the short circuiting
of sub-slab vapors with ambient room air. Expendable vapor points were not used for this project.
New inert tubing was connected to the vapor sampling points and to a six-liter stainless steel SUMMA
canister which was cleaned by the lab prior to use. The lab placed the SUMMA under a vacuum and
the regulators were set to “passively” draw samples for approximately 20 to 30 minutes. The
beginning and ending pressure in each canister was recorded during sampling, as well as location,
time, SUMMA and regulator identification numbers. The vapor points were allowed to “rest” and
equilibrate with the subsurface prior to sampling. Also prior to sampling, a PID was used to measure
volatiles in the subsurface and to evacuate stagnant air from the sample line so as maximize vapor
recovery in the canisters. Vapor points were driven prior to drilling and soil sampling to minimize
cross contamination between the vapor cores and other drilling locations on the subject property. No
other drilling was conducted inside the buildings at the time of the investigation.
On October 19, 2021 a preliminary assessment of the indoor air quality of the work place environment
was conducted by placing a SUMMA canister in a central location of the auto body shop at “waist”
level. The SUMMA was set to draw air for 8-hours to reflect a standard work day inside the auto body
shop. This was done to assess worker exposure to all vapors and was compared to US EPA RSLs for
industrial indoor air standards.

5
When the canisters were finished drawing vapors, the valves were closed, the regulators were left
attached to the canisters, and the canisters were personally hand delivered by Mr. Lance Hess of Hess
Environmental, Inc. under proper chain of custody protocol to ALS laboratories located at960 West
LeVoy Drive, Salt Lake City Utah84123 on the same day. The samples were analyzed using US EPA
Toxic Organics -15 (TO-15) methods for air analysis.
3.6 EXPOSURE AND RISK STANDARDS
Generally, we compared soil analytical results to the US EPA Regional Screening Level tables which
reflect industrial standards (Table 1). We used the Target Hazard Quotient (THQ) of 1.0 to determine
the risk exposure and find this reasonable given that the intended use of the subject property is
industrial now and into the foreseeable future and it is our understanding that there is no residential
zoning currently planned. For those constituents that were below industrial standards and were above
laboratory quantifiable limits, we evaluated and compared those constituent levels to US EPA RSLs
for residential soil levels. We describe risk assessment methods and calculations in their respective
sections below, including industrial RSL soil contaminant concentration levels protective of
groundwater with a dilution factor of20.
Groundwater concentrations are compared to the US EPA MCLs. We also used the Vapor Intrusion
Screening Level calculator to determine the Target Groundwater Concentrations (TGC) for vapor
intrusion. The determination of the TGC was conducted only for those compounds which tested above
the laboratory quantifiable limits (Table 2).
Vapor exposure calculations were conducted using the US EPA Vapor Intrusion Screening Level
(VISL) model. The calculations were conducted using the industrial risk exposure scenario with a
THQ of 1.0. Sub-slab vapor results were compared to industrial RSL target levels for sub-slab soil
vapors and predicted indoor air quality modeled results were compared to industrial RSL values for
indoor air. Given the use of the subject property as an auto repair shop, some of the compounds are
not entirely related directly to the release. We suspect most auto repair shops have a similar indoor
air quality signature, though we have not conducted such research at this time.
Potential for vapor impacts from groundwater contamination are summarized in (Table 4). We also
included select sub-slab vapor analytical results for comparison with residential RSL target sub-slab
concentrations (Table 5).
The subject property consists of two (2) parcels, the West Parcel and East Parcel. The two parcels are
separated by a public vehicle access alley way (Parcel Map Appendix A Figure6) and as such are
generally assessed separately with regard to risk exposure scenarios evaluation herein.

6
4.0 RESULTS
4.1 SOIL ANALYTICAL RESULTS
The property geology consists predominately of clayey silts and silty clays. Soil sample analysis showed
that cis-1,2-dichloroethene was detected at 0.006 milligram per kilogram (mg/kg) in SB-9 which is below
the United States Environmental Protection Agency (US EPA) Regional Screening Level (RSL) of 15.6
mg/kg. Trichloroethene (TCE) was detected at 0.004 mg/kg which is below the US EPA RSL residential
level of 0.94 mg/kg. No other VOCs were detected above their laboratory minimum reporting limit
(MRL).Soil analytical results were below RSL residential standards for both the west Parcel No. 015 and
the east Parcel No. 014. The oil water separators and the waste oil UST, based on all soil sample analytical
results, have not impacted the soils at the locations and depths sampled.
Vinyl Chloride
The laboratory soil analytical reporting limits for vinyl chloride for the September 5, 2019 and February
21, 2020 sampling events exceeded the screening levels for soil concentrations protective of groundwater.
The reporting limits are then assumed to be maximum exposure point concentrations input into risk and
exposure calculations. Quantifiable levels of soil contamination, however, are protective of groundwater,
including vinyl chloride, for the soil sampling event conducted on July 8, 2021 wherein the reporting limit
was less than 0.007 mg/kg at the sampling interval of nine (9) to 9.5 feet below ground surface. The vinyl
chloride results in July were below the US EPA screening levels for vinyl chloride. The five (5) boreholes
were drilled throughout the study area and samples were collected from just above the water table. These
results show the soil concentrations of vinyl chloride are protective of groundwater. We no longer
consider vinyl chloride in soils a threat to groundwater.
For comparison, the specific RSL for the Salt Lake Region for vinyl chloride modeled at 2.2 meters depth
below ground surface is 4.14 mg/kg (Table 1) and is intended standard for the outdoor worker exposure
scenario regarding to volatilization and fugitive dust control, such as during landscaping, deep
excavations or other outdoor work.
The soil sampling results are summarized in Table 1 which are located in Appendix B and the
laboratory report is presented in Appendix D.
4.2 GROUNDWATER ELEVATIONS
Water Table and Groundwater Flow
Water levels were measured on July 21, 2021, March 4, 2022, April 19, 2023 and May 15, 2023.
Water levels were measured prior to sampling and are shown in the table below (see also, Figure 2,
Figure 5, and Figure 6):

Water Table Elevation
Well ID Date
TOC
Elevation
(Feet)
Depth to
GW (Feet)
Water Table Elevation
(feet MSL)
Greatest
Change in
Elevation Since
7/21/21(ft)
MW-1 7/21/2021 4239.59 8.22 4231.37 -

7
MW-2 7/21/2021 4239.67
7.86 4231.81 -
MW-3 7/21/2021 4239.33 7.35 4231.98 -
MW-4 7/21/2021 4239.5
7.59 4231.91 -
MW-5 7/21/2021 4240.27
8.48 4231.79 -
MW-1 3/4/2022 4239.59 7.25 4232.338 -
MW-2 3/4/2022 4239.67
7.52 4232.152 -
MW-3 3/4/2022 4239.33 6.85 4232.48 -
MW-4 3/4/2022 4239.5

7.07
4232.429 -
MW-5 3/4/2022 4240.27
7.80 4232.466 -
MW-1 4/19/23 4239.59 6.99
4232.598

-
MW-2 4/19/23

4239.67

7.40 4232.272

-
MW-3 4/19/23 4239.33 6.75 4232.58

-
MW-4 4/19/23 4239.5

6.95
4232.549

-
MW-5 4/19/23 4240.27

7.64 4232.626

-
MW-1 5/15/23 4239.59 7.29 4232.298 1.23
MW-2 5/15/23

4239.67
7.55 4232.122 0.46
MW-3 5/15/23 4239.33 7.00 4232.33 0.6
MW-4 5/15/23 4239.5
7.18 4232.319 0.82
MW-5 5/15/23 4240.27
7.87 4232.396 0.84

TOC = Top of casing
MSL = Mean sea level
GW = groundwater
The largest net change in water table elevations was at MW-1, located in the west parking lot. The
next largest net change was in MW-5. The smallest net change was at MW-2, MW-3 and MW-4 in
the east parking lot, Parcel 014. The overall maximum change, an increase in this case, of the water
table elevation was 1.23 feet between July of 2021, a low water table season, and May of 2023, a high
water table season. There has been some discussion regarding seasonal water table elevations
fluctuations causing a period of high contaminant concentrations. It is our experience, however, that
a maximum net change of the water table of only 1.23 feet should over nearly two (2) years does not
impact groundwater concentrations to any significant extent. This suggests that the sample results
from the monitoring wells to date for benzene are representative of the aquifer. Sample results for
benzene were once again below MCLs in April and May of 2023 (Table 2).
As inferred from the topography of the Salt Lake Valley near the subject property, the regional
groundwater flow direction is expected to be in a southwest direction to a zone very close to the subject
property (Figure 4; Groundwater Flow From Inferred Topography; USGS, 1998, Fort Douglas
Quadrangle Topographical Map and the USGS, 1998, Salt Lake City North Quadrangle). The water
table at a point very close to the subject property swings into more of a westerly direction inferred by
the topographical contours on the Salt Lake South 1998 Quadrangle. Recent water table elevation
measurements show that groundwater flow direction varies in an overall southwesterly direction
consistent with the Salt Lake South Quadrangle surface elevations (Figure 5 March 2022 Water Table
Map) to a southerly direction (Figure 6 April 2023 Water Table Map). Water table elevations
measured in May of 2023 (Figure 7 May 2023 Water Table Map) showed a similar water table
configuration with that of March 2022 with a slightly stronger component of flow from northeast to
southwest. A brief glance at the Red Butte Creek and Emigration Creek drainage systems reveals that

8
they follow the same general flow path and trends. They flow to the southwest away from the
mountain front and then they turn to the west.
Whereas the groundwater flow direction as measured in July of 2021 showed a more westerly vector
component of groundwater flow (Figure 3) than in March of 2022 (Figure 5) and in May of 2023
(Figure 6), which showed a stronger southwesterly flow direction. In April 2023 groundwater flow
direction exhibited a more southerly vector component of groundwater flow (Figure 6). Several
factors can affect flow direction. Seasonal water table fluctuations can affect groundwater flow
direction. Also, any unknown construction fill that might be buried beneath the subsurface could
affect flow direction like a gravel backfilled abandoned basement which may intersect the water table.
Some of the wells may be screened across localized geologic anomalies in the hydrostratigraphic units,
such as a gravel lens under a slightly confining layer, for example. Unknown pumping events that
impact the water table can alter flow directions. Anything causing an artificial compression of the
water table can affect the water table elevation and thus, localized flow direction, such as a passing
train. The water table surface elevation maps, Figure 5 (March 2022), Figure 6 (April 2023), and
Figure 7 (May 2023) are located in Appendix A.
As groundwater flows from the northeast to the southwest or from the north to the south toward the
subject property, PCE and other contaminants will flow toward the subject property. As the plume
approaches the subject property, and the westerly vector components of chemical transport become
larger, then other mechanisms work to spread the contamination laterally onto the subject property
creating the well known, characteristic feathered “plume” shape. Longitudinal solute dispersion can
occur along the advection component of flow and transverse dispersion can occur as various factors
cause lateral vector components of groundwater flow to increase. Chemical diffusion can occur from
areas of high chemical density and to zones of low chemical density. Chemicals such as PCE and cis-
1,2-dichloroethene (DCE) tend to flow at higher linear velocities than many other organic chemicals
in groundwater facilitating the transport of these chemicals both laterally and longitudinally.
Whereas as we do not know of any sources of PCE located immediately to the east of the property,
which is currently composed of residential homes and then a park 2,700 feet to the east, no actionable
contamination was detected on the east parking lot parcel during well sampling in July 2021, and the
conceptual flow model described above is the simplest explanation for the PCE on the site and it is the
simplest explanation thus far as to why the plume missed the east parcel. A working hypothesis
suggests that there may be more than one source of PCE to the north and northeast of the subject
property. Records show that the property located approximately 140 feet to the north located at 933
South Edison Street was a former drycleaning facility in which the groundwater is impacted with PCE.
As such when seasonal groundwater flow fluctuations are to the south, this would facilitate transport
of PCE and PCE daughter products to the subject property resulting in impacts to the property
including vapor intrusion.
We look forward to DEQ’s characterization of the Edison Street plume and any modeling they may
conduct to bring light to source of the plume, the responsible parties (RPs), any new ideas regarding
fate and transport of the groundwater contamination and impacts to the indoor air quality of the
residential homes over or near the Edison Street Plume.
4.3 GROUNDWATER ANALYTICAL RESULTS
The target constituent of concern PCE was detected in MW-5 at 3.2 µg/L which is below the US EPA
MCL of 5 µg/L. MW-5 is in close proximity to SB-7 which was emplaced during the February 2020
LSI. The corresponding groundwater sample SBW-7 collected from SB-7 detected PCE at 1.5 µg/L.
PCE was also below the VISL TGC.

9
Trichloroethene (TCE), a daughter product of PCE, was detected in MW-5 at 1.5 µg/L which is below
the US EPA MCL of 5 µg/L. The corresponding groundwater sample SBW-7 collected from SB-7
detected TCE at 0.4 µg/L. TCE was also below the VISL TGC.
Trans-1,2-dichloroethene (trans-1,2-DCE), a daughter product of PCE, was detected in MW-5 at
1.1 µg/L which is below the US EPA MCL of 100 µg/L. The corresponding groundwater sample
SBW-7 collected from SB-7 detected trans 1,2-DCEat 4.2 µg/L. Trans 1,2-DCE TCE was also below
the VISL TGC.
Cis-1,2-Dichloroethene (cis 1,2-DCE), a daughter product of PCE, was detected in MW-5 at 151 µg/L
which is above the US EPA MCL of 70 µg/L. No VISL TGCs are provided, however, for this
constituent. The corresponding groundwater sample SBW-7 collected from SB-7 detected cis 1,2-
DCE at 1,070 µg/L. Cis 1,2-DCE was detected in MW-2 at 5.1 µg/L which is below the US EPA
MCL of 70 µg/L. Cis 1,2-DCE, however, was non-detect at MW-3 and MW-4 on the east Parcel
No. 014.
Toluene was detected in MW-2 at 0.4 µg/L which is below the MCL of 1,000 µg/L and the VISL
TGC.
Benzene was detected in groundwater samples SBW-5, SBW-6, and SBW-7 collected from soil
borings SB-5, SB-6, and SB-7 emplaced during the February 2020 LSI. SB-5, SB-6, and SB-7 are in
close proximity to MW-3, MW-4, and MW-5 which were installed in July of 2021. Benzene was
detected in SBW-5 and SBW-6 at 5.4 and 10.7 µg/L respectively, which exceeds the MCL of 5 µg/L
during the February 2020 LSI. Benzene was detected in SBW-7 at 4.7 µg/L which is below the MCL
of 5 µg/L in February 2000 LSI. Benzene was not detected in the groundwater in any of the monitor
wells during the July 2021 sampling event. Sample results for benzene were once again below MCLs
in April and May of 2023 (Table 2). We do not recommend additional sampling and analysis for
benzene.
The observed differences in concentrations between studies may have resulted for several reasons
including rapid push probe drill assessment versus groundwater sampling from a well, natural
attenuation, or time of year.
The oil/water separators and the waste oil UST, based on all the groundwater analytical results, do not
appear to have impacted the groundwater to any significant extent. Soil borings SB1-SB4 were drilled
adjoining the oil/water separators and the Waste Oil UST and showed minimal impacts to the
subsurface; however, the higher observed concentrations were migrating to the west, having originated
from off-site to the east. Regardless, PCE is addressed herein regardless of origin.
The groundwater sampling results are summarized in Tables 2 and 4 which are located in Appendix B
and the laboratory report is presented in Appendix D.
4.4 VAPOR ANALYTICAL RESULTS
Initial screening of these vapor points with the PID indicated vapor contamination under the slabs, as
high was 1.4 parts per million (ppm) (Table 3). The PID meter was sampling air at a relatively high
flow rate and as a result the vapor concentrations would briefly peak, and then rapidly return to zero.
Each of the four (4) soil gas vapor point concentrations were under the VISL target sub-slab
concentration of1,570 ug/m3for PCE; however, PCE concentrations ranged as high as 1,000 ug/m3.
We expect that those contaminants which were already under target sub-slab concentrations in the
vadose zone would further attenuate by a factor of at least 0.03 by the time they intruded into building
air, if at all. No other constituent concentrations exceeded RSLs for industrial indoor air exposure

10
scenarios; however, the additive effects and cumulative risks from these compounds are evaluated
using the VISL calculator.
VISL modeling using six (6) detected compounds (See Division Table 5) in soil gas produced a
residential cancer risk (CR) of 3.6x10-6. This falls within the risk range of 10-6 to 10-4 and a Site
Management Plan (SMP) and a recorded Environmental Covenant (EC)is required to protect human
health and the environment for all land use scenarios. The land use, however, will continue to be
industrial in nature at the west parcel which currently contains the auto repair facility. Utah code in
Subpart (1) clarifies that a cancer exposure risk under 1x10-6 allows unrestricted land use, including
residential and other uses.
Laboratory analytical results of soil vapor samples for VOCs also showed a spatial correlation with
PCE occurrence in groundwater. VP-1 and VP-2 were the northern most vapor points and each had
the highest concentrations of PCE vapors, as high as 1,000 ug/m3 in VP-1. The highest concentrations
of the groundwater constituent, dichloroethene, and the only constituent to exceed MCLs, came from
MW-5, the northern most well. PCE was detected in MW-5, located next to the up gradient northeast
corner of the building (Figures 3 and5, Water Table Contour Map). PCE, however, was not detected
in the other wells. All constituents collected from the monitoring wells were below the VISL
calculator TGCs (Table 3).
What this means is that the higher sample analytical results, for both groundwater and vapors, tended
to occur nearest the northern and northeastern subject property boundary further showing that PCE
and daughter products originated from sources up gradient, or north (and northeast), of the subject
property. These results, given the SI being conducted by DEQ of the “Edison Plume” north and east
of the subject property and the lack of sampling at the subject property show that the subject property
is not the source of the contamination (Figure 3 Figure Showing Correlation). Maximum site
groundwater concentrations for PCE (3.7 ug/l) were below the VISL TGC of 65.2 ug/l which is
expected because the measured subslab, both highest and cumulative average levels were below the
target subslab vapor level of 1,570 ug/l.
We modeled predicted indoor air vapor concentrations using the US EPA Vapor Intrusion Screening
Level (VISL) calculator only for those soil gas (sub-slab) constituent results which exceeded the
industrial indoor air RSLs, in this case, PCE. Considering that any concentrations already below the
RSLs would only attenuate to even lower concentrations as they diffused upward, these compounds
did not warrant further assessment. The US EPA Method To-15 evaluates individual species.
All four sub-slab vapor points exceeded the indoor air quality US EPA RSL of 47.2 ug/m3 for PCE
and we therefore evaluated PCE further using VISL; however, as stated earlier, other constituents
which were already under the US EPA RSL target indoor air quality level would ameliorate even more
if intrusion were experienced and thus are eliminated from additional evaluations. We conducted
VISL modeling for PCE using the highest measured concentration of 1,000 ug/m3 from VP-1. The
predicted air concentration result was 30 ug/m3, below the industrial indoor air quality RSL of 47.2
ug/m3 (Table 3). Each of the vapor points sub-slab concentrations were below the VISL target sub-
slab concentration of 1,570 ug/m3.
Potential vapor impact to indoor air from groundwater contamination as measured in the monitoring
wells was calculated and none of the selected compounds exceeded industrial target indoor
concentrations. The calculated hazard quotient (HQ) was less than one (1) for cumulative vapor
impacts from the groundwater contamination, which is an acceptable exposure in the industrial
exposure scenario (Table 4).
Preliminary VISL modeling was conducted of PCE and five (5) other potentially impactful vapors
using residential standards. Of the six (6) compounds, PCE exhibited measured sub-slab vapor

11
concentrations which exceeded the VISL residential target sub-slab levels. The predicted indoor air
concentration for PCE was above the VISL target indoor concentrations for residential
usage (Table 5).
4.4.1 Indoor Air Quality Sample:
An indoor air sample (VP-5), was collected during October 2021. Concentrations of 1,2,4-trimethylbenzene,
ethyl benzene, benzene and hexane exceeded the U.S. EPA RSL for Industrial Air. The indoor air sample
contained a PCE concentration of 2.4 ug/m3 and corroborates the VISL modeling results which shows
attenuated levels of PCE (Table 3).
It is likely the indoor air quality constituents, however, are largely related to the activities conducted in the
auto shop and not from the Edison Street plume because these levels inside the shop were higher than each of
the subslab vapor concentrations. This concept is developed in Section 5.0 and Section 6.0 in more detail;
however, in summary, the vapor migration pathway is incomplete and is not connected to the indoor air based
on other multiple lines of evidence (MLE).
Laboratory analysis of indoor air sample VP-5 indicated the presence of several VOCs of various
concentrations, notably benzene, ethyl benzene, hexane, PCE, heptane, and total xylenes. Exposure to
these contaminants could result in a cumulative CR of 2.67x10-5 as modeled by the US EPA VISL
calculator (see Division Table 5). This suggests a poor indoor air quality at the shop and institutional
controls (ICs) through an SMP and an EC must be relied upon for the protection of human health and
the environment.
4.4.2 Sub-Slab Attenuation Factor (AFss)
For the purposes of the following discussion, it is noted that “…the Division will disregard any
inferences made with regards to the recommended default AFss.” The purpose of the following
discussion is to assess the level of protectiveness of the default AFss, which is used in the calculations.
The sub-slab attenuation factor (AFss) value of 0.03 was developed by the US EPA for VISL modeling
for both residential and industrial facilities with the rationale that many residential homes are
converted to commercial usage. The US EPA, however, allows for an adjustment of the AFss value
for non-residential, industrial buildings by “the project manager”, DWMRC, in this case (The US
EPA Technical Guide For Assessing and Mitigating the Vapor Intrusion Pathway from Subsurface
Vapor Sources to Indoor Air, June 2015), from Appendix A.4 of the guidance document, as follows:
“There are theoretical considerations to support expectations that larger nonresidential buildings
that are constructed on thick slabs will have lower attenuation factors than residential buildings.
These considerations include:
• Given that the size (e.g., interior height and footprint area) and air exchange rate tend to be larger
for many nonresidential buildings (see, for example, Table A-5), it is expected that building
ventilation rates for many nonresidential buildings would be higher than those for residential
buildings. A higher ventilation rate is expected to result in greater overall vapor dilution as vapors
migrate from a subsurface vapor source into a building. On this basis, many nonresidential
buildings would be expected to have lower attenuation factors than those for residential buildings,
all else being equal.
• Comparing buildings with slab-on-grade construction, nonresidential buildings tend to have
thicker slabs than residential buildings. With thicker slabs, a given amount of differential settling
would be expected to lead to less cracking in the slab and would be less likely to create cracks that
extend across the entire slab thickness. Buildings with thicker slabs would, therefore, be expected
to exhibit lower soil gas entry rates, all else being equal.

12
• Where appropriate, EPA may consider appropriate building-specific data, information, and
analysis when evaluating vapor intrusion into large nonresidential buildings.”
What this means is that the EPA officers, or other regulatory officers and project managers in the
various states, may allow for the adjustment of the AFss based on specific building data in the current
context of the project. The statement does not refer, however, to future modifications of the guideline.
This is why the AFss is a variable which can be adjusted during the calculations and not a fixed input
parameter in the model.
The large 9,400 square foot facility, the foundation slab for the large industrial structure and a higher
ventilation rate due to a variety of factors justify lowering the AFss. In the event of vapor intrusion,
vapors would mix in the air in the large rooms. We also consider that the roll up doors are not sealed
and are a constant source of fresh air whether they are rolled up or down. When the doors are down
during cold weather, the heaters are running further mixing the air. The slab appeared to be about
10 inches thick or perhaps 20% thicker than residential slab. Clearly, this structure is not an average
residential home nor was it converted from a home to an industrial facility, the overriding concern in
the US EPA guidance documents. This represents a preponderance of evidence substantiating the
basis for an adjustment of the AFss.
The AFss of 0.03, therefore, is overprotective in this particular industrial setting and results presented
in this report. The results, however, are nonetheless based on the recommended default AFss of
0.03,but are conservative at this site. We again clarify, however, that “…the Division will disregard
any inferences made with regards to the recommended default AFss.”
5.0 INCOMPLETE VAPOR INTRUSION PATHWAY – MULTIPLE
LINES OF EVIDENCE (MLE)
The vapors do not appear to be entering the building from the subsurface and this is based on Multiple
Lines of Evidence (MLE). What this means is that the vapor intrusion pathway is incomplete and
there is not a vapor pathway connecting the subsurface with the building interior. The MLE include
four (4) lines of evidence showing that there is no vapor pathway connecting the building interior with
the subsurface including utility locations, local geology which is pervasive throughout the study area,
the construction of an industrial building, and soil, groundwater and vapor analytical results.
There is one (1) sewer line trending north-south in the alley way adjoining the east side of the site
building. This utility corridor may be the preferential pathway connecting the PCE source located
north of the site with the subsurface to the south. We did not discover, however, any utility pathway
connecting the building interior to the subsurface, including the north-south sewer line.
The geology at the site is predominantly silty clays and clayey silts throughout the study area. The clays
and silts range from dense to soft. These low permeability strata, barring any fractures, ruptures or other
cracks creating contiguous conduits, work to reduce vertical vapor migration into the building interior
and also works to further isolate the building interior from the adjoining sewer corridor (Borehole Logs,
Appendices).
Additionally, this building was constructed from the ground up with the intention of using it for
industrial purposes and was not converted from residential as determined during the Phase I
Environmental Assessment. This is a concern in the US EPA vapor intrusion guidance documents,
that residential dwellings are commonly converted to industrial usage. This is not, however, the case
at the site. The foundational slab in the building is nearly 10 inches thick, and is generally in good
condition. The open air space and air handling inside the building far exceeds that of the average
residential structure (Section 4.3.2).

13
The indoor air quality data shows that individual chemical levels such as benzene, ethyl benzene,
hexane, heptane, and total xylenes, are higher inside the building than in the subslab vapor samples,
common chemicals inside auto body repair shops. What this means is that, after attenuation, the vast
majority of the indoor air quality impacts are from the operations of the auto repair shop because
subslab vapor would attenuate not increase as they migrated vertically upward. This is a chemical
fingerprint pointing to a vapor intrusion pathway that is most likely not connected to the indoor air.
The simpler explanation is that the indoor air quality results are largely (perhaps not entirely) derived
from the shop operations (Table 3). The argument could be made that there is at least a small
contribution of vapors from the subsurface including subslab vapors or groundwater into the indoor
air quality. The issue with this logic, however, is elucidated by vinyl chloride and Cis-1,2-
dichoroethene (See Section 6.0).
Vinyl chloride, while detected in the groundwater, is predicted by VISL to impact the indoor air. No
vinyl chloride, however, was detected inside the building further suggesting the potential for an
incomplete vapor intrusion pathway. Furthermore, no vinyl chloride was detected in the subslab vapor
samples consistent with the geologic low permeability model described above. Cis-1,2-
dichloroethene, while detected in groundwater, was non-detect (<0.59ug/m3) in the indoor air. This
chemical signature alone is sufficient to show that the subsurface vapors are not entirely connected to
the indoor air without any other lines of evidence by evaluating vinyl chloride and Cis-1,2-
dichloroethene as tracers compound (See Section 6.0).
Based on these multiple lines of evidence (MLE), however, the vapor intrusion pathway is most likely
incomplete and is potentially not entirely connected to the indoor air quality inside the building.
6.0 FATE AND TRANSPORT OF CIS-1,2-DICHLOROETHENE
The highest concentrations of the compounds cis-1,2-dichloroethene (DCE) and PCE were detected
in MW-5 at the northeast, up gradient corner of the building during the July 2021 sampling event. PCE
was below MCLs; however, DCE was at 151 mg/l, above MCLs; however, is not evaluated for RSL
TGC. DCE is well known as a daughter product of PCE and TCE via reduction during anaerobic
biodegradation wherein PCE is used by microbes as an electron acceptor.
With a relatively high Henry’s law constant of 0.167 (unit less) at 25 degrees Celsius, DCE will
preferentially volatilize into the vapor phase in a similar fashion to benzene, which is used here for
comparison, which has a Henry’s law constant of 0.227 (unit less). The vapor pressure of DCE is
intermediate between benzene and vinyl chloride. This is why vapor stripping is an effective approach
in DCE remediation.
DCE exhibits a slightly higher solubility at 6,410 mg/l versus the solubility of benzene at 1,790 mg/l
and PCE at 206 mg/l; and DCE is highly soluble in benzene. Considering a higher solubility and a
lower octanol-water partition coefficient than benzene and PCE (US EPA RSL Calculator), DCE will
preferentially stay in the groundwater as opposed to adsorbing to the surrounding aquifer matrix more
so than benzene and PCE along a given flow path and will migrate closer to the linear velocity of
groundwater than will benzene, for example. Given the occurrence of DCE outside of the northeast,
up gradient corner of the building, we expect to see increasing DCE concentrations away from or down
gradient from a PCE source. This shows that the source of the Edison Street plume is off-site and up
gradient to the northeast or north because the DCE would tend to increase in concentrations down
gradient closer to the property building as it evolved along the groundwater flow path. What this
means is that the DCE near the building did not originate from under the building. Regardless, PCE
is addressed herein regardless of origin.

14
Also note that the DCE was non-detect inside the building vapor sample (VP-5) and in the soil vapor
samples. Given the relatively high Henry’s Law Constant and vapor pressure of DCE, we would
expect some impact to the indoor air quality of the building and the vadose zone. The groundwater
concentration in July of 2021 of DCE was as high as 151ug/l, exceeding US EPA MCLs. The
concentrations were 1,070 ug/l in February of 2020. DCE however, as noted above, did not appear in
the indoor air and the subsurface vapor samples. This line of evidence points to an incomplete vapor
intrusion pathway within the subsurface and is not tributary to the indoor air of the building.
7.0 DISCUSSION
The higher sample analytical results, for both groundwater and vapors, tended to occur nearest the
northern and northeastern subject property boundary showing that PCE and daughter products
originated from sources up gradient, or north (and northeast), of the subject property (Figure 3 Spatial
Correlation). These results and given that the SI being conducted by the US EPA and DEQ of the
“Edison Plume” north and east of the subject property but not on the subject property, show that the
subject property is not the source of the groundwater contamination. Historical property usage data
also bear this out as stated in the Phase I ESA (2021). The original purpose of the Phase II LSI was
fulfilled, which was to determine the impacts on the subsurface from the oil/water separators and the
waste oil UST. They do not appear to have impacted the subsurface to any significant extent based
on soil sample results and groundwater sample results from the monitoring wells.
Benzene in groundwater has been below actionable levels from 2019 to the recent sampling events in
2023 except for one sample on 2/21/2020. Groundwater samples collected on 2/21/2020 were
collected from rapid assessment soil borings, rather than groundwater monitoring wells. As such, it
is highly probable that the groundwater contamination levels are artificially higher than would be
expected due to entrainment of soil/clay particles. These particles will have organic compounds
adsorbed, thus raising the apparent concentrations in the groundwater. The point being is that the
samples collected at the time represented worse-case concentrations levels but are not representative
of groundwater conditions.
The large 9,400 square foot facility, the foundation slab for the large industrial structure and a higher
ventilation rate due to a variety of factors show that this facility did not originate as a residential
structure. The slab appeared to be about 10 inches thick or perhaps 20% thicker than the average
residential slab. The recommended default AFss of 0.03 used in this study, therefore, is overprotective
in this particular industrial setting and results presented are conservative. Regardless, the vapor
intrusion pathway is potentially incomplete based on MLE and chemical fingerprinting (Section 5.0).
We clarify, however, that “…the Division will disregard any inferences made with regards to the
recommended default AFss.”

Potentially Responsible Party (PRP)
The subject property is not the source of the Edison Street subsurface plume and therefore, the subject
property owners are not a potentially responsible party (PRP) for the subsurface plume. We suspect
that the indoor air quality of the building due to auto repair work is similar to other auto body repair
shops but have not conducted such a study.
For the record solely, we look forward to the identification of Potentially Responsible Party (PRP) for
the subsurface Edison plume.

15
7.1 WEST PARCEL NO 015 (BUILDINGS, WEST PARKING)
Soil
Volatile organic compounds (VOCs) in soils were either not detected or did not exceed their respective
Regional Screening Levels (RSLs) under both residential and industrial exposure standards. The
reporting limits for vinyl chloride, however, exceeded RSLs for the first two (2) sampling events but
were well below RSLs during the final sampling event. There are no residual contaminants measured
in the soil that would threaten groundwater. No other calculations or evaluations are necessary for
soil contamination at the property except for laboratory quantification limits of vinyl chloride,
addressed in the next section.
Vinyl Chloride in Soil
Soil levels protective of groundwater were not exceeded in most of the constituents of concern. The
laboratory detection limit, however, for vinyl chloride was higher than the screening levels during the
first two (2) sampling events. During the sampling event in July of 2021, the laboratory analytical
detection limits were below the screening limits, and no quantifiable vinyl chloride was reported(Table
1). Vinyl chloride was not detected in the indoor air of the building or in the subslab vapor samples
(Table 3). These observations show that the July 2021 sample event is representative of the vinyl
chloride disposition in the subsurface and is “non-detect” in the soils. The only reportable vinyl
chloride was detected in the groundwater is MW-5; however, MW-5 is not on the subject property and
the vinyl chloride is daughter product of up-gradient PCE degradation. Vinyl chloride concentrations
in soils are protective of groundwater.
Groundwater
PCE, trichloroethene (TCE), trans-1,2-dichloroethene (trans 1,2-DCE), benzene and toluene were
each below their respective MCLs and TGCs. The groundwater sample SBW-7 collected from soil
boring SB-7 detected cis 1,2-DCE at 1,070 µg/L. Cis-1,2-Dichloroethene (cis 1,2-DCE) was detected
in MW-5 as high as 570 µg/L (Table 2; May 15, 2023) which is above the US EPA MCL of 70 µg/L.
Vinyl chloride was above the US EPA MCL of 2.0 ug/l but below the RSL TGC of 2.45.
Benzene has been below actionable levels from 2019 to the recent sampling events in 2023 except for
the one (1) sample event cited above on 2/21/2020. Groundwater samples at that time were collected
from rapid assessment soil borings, rather than groundwater monitoring wells. As such, it is highly
probable that the groundwater contamination levels are artificially higher than would be expected due
to entrainment of soil/clay particles. These particles will have organic compounds adsorbed, thus
raising the apparent concentrations in the groundwater.
Benzene was either not detected in groundwater samples or was below the TGC of the last three (3)
groundwater sampling events since the monitoring wells were installed. Regardless, the groundwater
table elevation has only fluctuated a maximum of 1.23 feet since sampling began. This is insufficient
seasonal fluctuation to account for net changes in benzene in groundwater over nearly a two (2) year
period.
VISL modeling was used to calculate the cumulative impacts of the chemicals of concern under the
groundwater to vapor pathway. VISL calculations using groundwater contaminant data suggest a VI
CR of 1.36x10-6. Indoor air quality is most likely not impacted by groundwater contamination due to
an incomplete vapor pathway to receptors based on MLE. Vinyl chloride was not detected inside the
indoor air or in the subslab vapor samples further substantiating the geologic low permeable model

16
and other MLE showing an incomplete vapor pathway in the subsurface (Section 5.0). Furthermore,
vinyl chloride was not detected in the groundwater beneath the subject property.
Vapors
All PCE vapor concentrations were below the industrial VISL target sub-slab concentration of
1,570 ug/m3. The VISL predicted air concentration based on the highest subslab vapor result was 30
ug/m3, below the RSL industrial indoor air exposure limit of 47.2 ug/m3. All VISL modeling was
based on the default AFss of 0.030, conservative and overprotective for a dedicated industrial facility
(Table 3).
Preliminary VISL modeling was conducted of PCE and five (5) other potentially impactful vapors
using residential standards. Of the six (6) compounds, PCE exhibited measured sub-slab vapor
concentrations which exceeded the VISL residential target sub-slab levels. The predicted indoor air
concentration for PCE was above the VISL target indoor concentrations for residential usage
(Table 5). DCE, a daughter product of PCE, was non-detect in each of the vapor samples. An SMP
and EC will include no future residential usage of the west parcel No. 015.
The subslab vapor concentrations for benzene, ethyl benzene and tetrachloroethylene are insufficient
to account for the indoor air quality sample results further substantiating the conclusion that the vapor
pathway is incomplete and this concept is further developed in Section 5.0. This strongly suggests the
contribution to the indoor air quality for these compounds from the subsurface is nominal, if we
evaluate the pathway using vinyl chloride and cis-1,2-dichloroethene as a tracer or surrogate
compounds.
VISL modeling was used to calculate the cumulative impacts of the chemicals of concern under the
groundwater to vapor pathway under a commercial exposure scenario. VISL calculations using
groundwater contaminant data suggest a VI CR of 1.36x10-6 exceeding the VISL screening level of
1x10-6 for VI CR (DEQ Tables).
VISL modeling was used to calculate the cumulative impacts of the chemicals of concern for sub-slab
concentrations under commercial exposure scenarios for carcinogenic compounds and non-
carcinogenic effects of all compounds. The cumulative carcinogenic risk was 8.19x10-7 and the
cumulative hazard index for non-carcinogenic effects was 0.869 or less than one (1).
VISL modeling was used to calculate the cumulative impacts of the chemicals of concern for sub-slab
concentrations under residential exposure scenarios. VISL calculations in each scenario exceeded the
VISL screening level of 1x10-6 for VI CR (DEQ Tables).
VISL modeling was used to calculate the cumulative impacts of the chemicals of concern for indoor
air concentrations under commercial exposure scenarios. VISL calculations exceeded the VISL
screening level of 1x10-6 for VI CR with a cumulative CR of 2.67x10-5. The calculated HI was 1.296
for indoor air, greater than 1.
Incomplete Vapor Pathway
The recorded geology in the subsurface as predominantly silty clays throughout the study works to reduce
vertical vapor migration and isolation from utilities. Additionally, the construction of the building is
industrial, not residential, further limiting exposure from subslab vapors. Vinyl chloride and ci-1,2-
dichloroethene, however, were not detected inside the indoor air of the building even though high levels
of Cis-1,2-dichloroethene were detected in the groundwater, suggesting that the vapor migration pathway
was incomplete. Based on the multiple lines of evidence (MLE) in their totality, this suggests that the
vapor intrusion pathway is incomplete (see Section 5.0).

17
7.2 EAST PARCEL NO 014 ( EAST PARKING LOT)
The water table aquifer is non-potable. Drinking water supplies are provided by the Salt Lake City
Department of Public Utilities. All groundwater concentrations were below all residential standards
in the East Parcel No 014. Benzene was below detection limits of the laboratory; however, this could
be attributed to seasonal water table fluctuations or different sampling techniques, i.e.… rapid push
soil borehole versus a monitoring well.
Some concern has been discussed about water table elevations fluctuating seasonally and causing a
period of high contaminant concentrations. The maximum change in the water table elevations was
1.23 feet between July of 2021, a low water table season, and May 2023, a high water table season.
The net increase in the water table in the east parcel No 014 was only 0.84 feet based on data from
MW-2, MW-3 and MW-4. It is our experience, however, that an increase of the water table of only
0.84 to 1.23 feet should not impact groundwater concentrations to any significant extent.
Soil
Regarding the east parcel, the ultimate goal is to achieve unrestricted residential usage. Soil samples
collected on 7/21/21 were below all RSL actionable levels for all constituents. This includes benzene.
All soil concentrations were below the soil to groundwater RSLs. No other calculations are made
regarding soil. All soil concentrations were below all residential standards in the East Parcel No 014.
All soil concentrations were below the soil to groundwater RSLs. As such, no other calculations are
warranted for the East Parcel 014.
Groundwater
Benzene has been below actionable levels from 2019 to the recent sampling events in 2023 except for
one sample on 2/21/2020. Groundwater samples at that time were collected from rapid assessment
soil borings, rather than groundwater monitoring wells. As such, it is highly probable that the
groundwater contamination levels are artificially higher than would be expected due to entrainment of
soil/clay particles. These particles will have organic compounds adsorbed, thus raising the apparent
concentrations in the groundwater. What this means is that the samples collected at the time
represented worse-case concentrations levels and aquifer conditions have been demonstrated since
well installation.
Benzene groundwater concentrations since the installation of monitoring wells have been below
actionable levels including MCLs or below quantification limits of the laboratory including samples
collected from 2012 to 2023. This includes three (3) sampling events from all five (5) monitoring
wells, including the east parcel.
Based on the non-actionable levels of benzene in groundwater over time and the relatively stable water
table elevation over time, with a net change of less than 1.23 feet, we recommend no additional
sampling at the east parcel. In the event the Division requires additional sampling, this may be
included within an SMP; however, one is not planned at this time for the East Parcel (See Section 8
below).
Vapor
Regarding monitoring wells MW-2, MW-3 and MW-4, the wells closest to the East Parcel, the
groundwater concentrations have been below the VISL TGC for benzene for each of the three (3)
groundwater monitoring events wherein samples were collected from the monitoring wells. The
cumulative CR for VI is 7.56x10-7 based on the groundwater to vapor pathway at the east parcel

18
(Appendices). Vapor intrusion does not appear to a concern where groundwater is the source of the
vapors at the east parcel.
8.0 CONCLUSIONS AND RECOMMENDATIONS
8.1 DEQ ASSESSMENT OF THE EDISON STREET PLUME
Whereas the subject property is used as an auto body shop and the data show that the source of the
subsurface PCE and its daughter degradation products are from subsurface sources up gradient. For
the record solely, we look forward to the discovery of the potentially responsible parties (PRP). We
acknowledge that the Division is not asking for a determination as to whether the subject property is
the source of the PCE.
8.2 WEST PARCEL NO 015 (BUILDING, WEST PARKING)
Recommendation for West Parcel 015
It is widely known and accepted that the Salt Lake Valley water table aquifer away from the mountain
fronts is not potable. Given the vapor intrusion risk, however, AG&E recommends the preparation of
a Site Management Plan (SMP) and the recording of an Environmental Covenant (EC) for the West
Parcel No 015 which includes limiting the subject property to industrial usage and no consumption of
water or access to the shallow water table aquifer.
Also we envision engineering use limitations written into the SMP and EC such as, for example, the
implementation of improved heating, ventilation and air conditioning systems (HVAC), and better
building ventilation, air cleaning filters or waste management processes by the tenant to ameliorate
the indoor air quality. Regular hazardous materials inventory and other best practices for managing
hazardous wastes including best practices for managing indoor air quality as per the auto repair
industry will be reviewed as part of the SMP.
8.3 EAST PARCEL NO 014 ( EAST PARKING LOT)
Recommendation for East Parcel 014
The cumulative CR for VI is 7.56x10-7 based on the groundwater to vapor pathway at the east parcel
(Appendices). No other calculations or sampling are warranted for the East Parcel 014. We
recommend unlimited use for the East Parcel as allowed under local, county, and State regulations
including the Utah Division of Water Quality. Furthermore, we do not recommend an SMP or an EC
for the east parcel.
9.0 SUMMARY
The conclusions were based on the results of a Limited Subsurface Investigation (LSI) conducted
between 2019 and May 2023 for the subject property located at 953 South Edison Street, Salt Lake City,
Utah 84111.
Based on the results of this LSI, the risk assessment calculations, the current and intended future use
of the West Parcel as an auto repair shop, with no residential zoning planned, an SMP and EC is
recommended for site closure at the west parcel.
We recommend unlimited use of the East Parcel as allowed under local and county regulations.

19
Should any additional information regarding the environmental condition of the subject property
become available, it should be provided to AG&E and Hess Environmental, Inc. for review and
reevaluation of the above recommendations.
Sincerely,

Applied Geoscience & Environmental

David W. Christiansen, President
State of Utah Licensed Professional Geologist #5278314-2250

Hess Environmental, Inc.

Lance Hess, M.S., P.G., Utah GWSS, Utah CC, 40-hr Hazwoper
Principal Hydrogeologist

10.0 APPENDICES
Appendix A Figures
Figure 1 Property Layout and Soil Boring Map
Figure 2 Well Location and Groundwater Contour Map (July 21, 2021)
Figure 3 Spatial Correlation: Edison Street Plume
Figure 4 Groundwater Flow as Inferred from Topography
Figure 5 Groundwater Contour Map (March 4, 2022)
Figure 6 Groundwater Contour Maps (May 15, 2023)
Figure 7 Parcel Map

Appendix B Analytical Data Summary Tables
Table 1 Soil Sample Data
Table 2 Groundwater Sample Data
Table 3 Air Quality Results
Table 4 Predicted Vapor Intrusion Risk From Groundwater
Table 5 Residential Vapor Intrusion Risk

Appendix C Soil Boring Logs
Appendix D Laboratory Analytical Report
Appendix E Utah Department of Environmental Quality Comments
Appendix F VISL Output Tables

APPENDIX A
FIGURES
Figure 1 Subject property Layout and Soil Boring Map
Figure 2 Well Location and Groundwater Contour Map (July 2021)
Figure 3 Spatial Correlation with Edison Street Plume
Figure 4 Groundwater Flow as Inferred from Topography
Figure 5 Groundwater Contour Map (March 2022)
Figure 6 Groundwater Contour Map (April 2023)
Figure 7 Groundwater Contour Map (May 2023)
Figure 8 Parcel Map

Figure 1. Property Layout and Soil
Boring Map
Property Boundary
PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

Legend

SB-1 Soil Boring

VP-1 Vapor Point

Sanitary Sewer
Overhead Electric
Natural Gas
APPROXIMATE SCALE IN FEET
50′ 50′ 0′
SB-2
SB-4 SB-3
Oil/Water
Separators
S
OE
SB-1
SB-5
SB-11
OE

OE

OE

OE

OE

OE

OE
OE

G
G

S
S
S
S
S
S
S
S
S
SB-7
Property With
Known PCE in
Groundwater
SB-8
SB-6
SB-10
SB-12
TO DEQ EDISON
STREET PLUME
STUDY
Used Oil UST
SB-9

Figure 2. Well Location and
Groundwater Map (July 21, 2021)
Property Boundary
PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

Legend
MW-1 Monitor Well

VP-1 Vapor Point

Water Table Level Surface
Dashed Where Inferred
General Groundwater Flow

50ʹ 50' 0'
APPROXIMATE SCALE IN FEET
42
3
1
.
4
0

42
3
1
.
6
0

42
3
1
.
8
0

42
3
2
.
0
0

Figure 3. North and northeast samples highest closest to PCE sources being investigated
by DEQ (Spatial correlation, ug/m3) showing PCE did not originate on site. High levels of
DCE are expected farther along the groundwater pathway away from the source as PCE
degrades proving that DCE and PCE are from off site
PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

MW-5
(PCE=3.2)
(DCE=151)
Groundwater flow direction
from March 2022 and April
of 2023 from Edison Street
plume DEQ study area to
subject property
To known and
suspected sources of
PCE
VP-4
(PCE=390)
VP-3
(PCE=270)
VP-1
(PCE=1000)

VP-2
(PCE=430)

Figure 4. Groundwater Table Flow Map
Inferred from topographic maps
Property Boundary
PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

Figure 5. Water Table Contour Map March 4, 2022
(3D Field, Minimum Curvature)

PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

Figure 6. Water Table Contour Map April 19, 2023
(3D Field, Minimum Curvature)

PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

Figure 7. Water Table Contour Map May 15, 2023
(3D Field, Minimum Curvature)

PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

Figure 8. Parcel Map
Property Boundary
PROPERTY Auto Shop Repair Facility 953 South Edison Street Salt Lake City, Utah
Applied Geoscience & Environmental 5455 West 10030 North Highland, Utah 84003 801-763-9884

N

APPENDIX B
ANALYTICAL DATA SUMMARY TABLES
Table 1 Soil Sample Data
Table 2 Groundwater Sample Data
Table 3 Air Quality Results
Table 4 Predicted Vapor Intrusion From Groundwater
Concentrations
Table 5 Residential VISL Output Tables

Table 1: Summary of Analytical Results in Soil (mg/kg)
MT
B
E
Be
n
z
e
n
e
To
l
u
e
n
e
Et
h
y
l
b
e
n
z
e
n
e
Xy
l
e
n
e
s
,

T
o
t
a
l
Na
p
h
t
h
a
l
e
n
e
1,
1
-
D
i
c
h
l
o
r
o
e
t
h
e
n
e

1,
1
,
2
-
Tr
i
c
h
l
o
r
o
e
t
h
a
n
e
1,
1
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
1,
2
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
Ca
r
b
o
n

D
i
s
u
l
f
i
d
e
Ca
r
b
o
n

Te
t
r
a
c
h
l
o
r
i
d
e
ci
s
-
1
,
2
-
Di
c
h
l
o
r
o
e
t
h
e
n
e
Me
t
h
y
l
e
n
e

C
h
l
o
r
i
d
e
Me
t
h
y
l

E
t
h
y
l

K
e
t
o
n
e
te
r
t
-
B
u
t
y
l
b
e
n
z
e
n
e
Te
t
r
a
c
h
l
o
r
o
e
t
h
e
n
e

(P
C
E
)
Tr
i
c
h
l
o
r
o
e
t
h
e
n
e

(T
C
E
)
Tr
a
n
s
-
1
,
2
-
di
c
h
l
o
r
o
e
t
h
e
n
e
Vi
n
y
l

C
h
l
o
r
i
d
e
3
SB-1 6’-7’ 9/5/2019 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.35 <0.03 <0.03 <0.69 <0.35 <0.03 <0.03 <0.03 <0.03 <0.03
SB-2 6’-7’ 9/5/2019 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.35 <0.03 <0.03 <0.69 <0.35 <0.03 <0.03 <0.03 <0.03 <0.03
SB-3 6’-7’ 9/5/2019 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.35 <0.03 <0.03 <0.68 <0.34 <0.03 <0.03 <0.03 <0.03 <0.03
SB-4 6’-7’ 9/5/2019 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.04 <0.04 <0.04 <0.04 <0.41 <0.04 <0.04 <0.83 <0.41 <0.04 <0.04 <0.04 <0.04 <0.04
SB-5(MW-3)9’-10’ 2/21/2020 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.36 <0.04 <0.04 <0.04 <0.71 <0.04 <0.04 <0.04 <0.04 <0.04
SB-6 (MW-4)9’-10’ 2/21/2020 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.34 <0.03 <0.03 <0.03 <0.34 <0.03 <0.03 <0.03 <0.03 <0.03
SB-7 (MW-5)9’-10’ 2/21/2020 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.04 <0.35 <0.04 <0.04 <0.04 <0.35 <0.04 <0.04 <0.04 <0.04 <0.04
SB-8 (MW-1)9’-9.5’ 7/8/2021 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.13 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007
SB-9 (MW-2)9’-9.5’ 7/8/2021 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 0.006 <0.13 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007
SB-10 (MW-3)9’-9.5’ 7/8/2021 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.14 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007
SB-11 (MW-4)9’-9.5’ 7/8/2021 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.14 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007
SB-12 (MW-5)9’-9.5’ 7/8/2021 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.007 <0.13 <0.007 <0.007 <0.007 0.004 <0.007 <0.007
205 5.1 47,000
*25.4 2500 8.6 1000 5.05 15.5 2.04 3470 2.87 2340 1020 193,000 117,000 103 6.04 302 1.68
0.412 0.0357 0.014
4.14
General Notes
Analyzed VOCs not listed in the table were below laboratory minimum reporting levels
Soil levels protective of groundwater only modeled where the result was above the detection limit. The vinyl chloride detection limit was above concentrations protective of groundwater on 9/5/2019 and 2/21/2020.
Definitions
VOCs = volatile organic compounds EPA = Environmental Protection Agency
mg/kg = milligrams per kilogram - similar to parts per million (ppm) RSLs = Regional Screening Levels
MBTEXN = methyl tertiary-butyl ether (MTBE), benzene, toluene, ethyl benzene, total xylenes, and naphthalene NE = Not established
MTBE = methyl tertiary-butyl ether – = Not Analyzed
SLs = Screening Levels Bold analyte result = Exceeds UDEQ ISLs or EPA RSLs
*Please note that the RSL calulator will sometimes provide one more significant digit than the RSL tables. 1 = Current EPA RSLs
"SB-5(MW-3)" =SB-5 locale or near locale was converted to a monitoring well. 2 = MCL-based screening level with a Dilution Factor (DAF) of 20 input into the model.
3 = Vinly Chloride reporting limits were above the screening levels for impact to groundwater on 9/5/2019 and 2/21/21.
The reporting limits, howeer, were below the screening levels on the most recent round of sampling, 7/8/2021.
Salt Lake Regional RSLs for Soil
VOCs (mg/kg)
MBTEXN Other VOCs
US EPA RSLs Protective of Groundwater 2
US EPA Industrial RSLs1
Depth Date
Sample
Name
Table 2: Summary of Analytical Results in Groundwater (ug/l or ppb)
Sample 
Name MT
B
E
Be
n
z
e
n
e
To
l
u
e
n
e
Et
h
y
l
b
e
n
z
e
n
e
Xy
l
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n
e
s
,

T
o
t
a
l
Na
p
h
t
h
a
l
e
n
e
1,
1
-
D
i
c
h
l
o
r
o
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t
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1,
1
,
2
-
Tr
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t
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1,
1
-
D
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t
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1,
2
-
D
i
c
h
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o
r
o
e
t
h
a
n
e
1,
2
,
4
-
Tr
i
m
e
t
h
y
l
b
e
n
z
e
n
e
1,
3
,
5
-
Tr
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m
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t
h
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l
b
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n
z
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n
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Ac
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t
o
n
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Ca
r
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n

D
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Ca
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n

Te
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ci
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-
1
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2
-
Di
c
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Me
t
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e

C
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d
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Me
t
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E
t
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l

K
e
t
o
n
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te
r
t
-
B
u
t
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b
e
n
z
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Te
t
r
a
c
h
l
o
r
o
e
t
h
e
n
e

(P
C
E
)
Tr
i
c
h
l
o
r
o
e
t
h
e
n
e

(T
C
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)
Tr
a
n
s
-
1
,
2
-
di
c
h
l
o
r
o
e
t
h
e
n
e

(
1
,
2
-
DC
E
)
Vi
n
y
l

C
h
l
o
r
i
d
e
SBW-1 9/5/2019 <5.0 0.6 <1.0 <1.0 <1.0 <1.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 <10.0 <1.0 <1.0 140 <2.0 <10.0 <1.0 2.0 <1.0 1.8 <1.0
SBW-2 9/5/2019 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 4.4 0.5 5 <1.0 <1.0 <10.0 <1.0 <1.0 52.6 <2.0 <10.0 <1.0 <1.0 <1.0 0.7 <1.0
SBW-3 9/5/2019 <5.0 0.4 0.7 <1.0 <1.0 <1.0 <5.0 5.2 <1.0 <1.0 <1.0 <1.0 <10.0 <1.0 <1.0 <5.0 <2.0 <10.0 <1.0 6.84 <1.0 0.4 <1.0
SBW-4 9/5/2019 <5.0 1.2 1.5 <1.0 0.3 <1.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 <10.0 <1.0 <1.0 <5.0 <2.0 <10.0 <1.0 <1.0 <1.0 3.6 <1.0
SBW-5 2/21/2020 <1.0 5.4 8.4 1.6 3.3 1.4 <1.0 <1.0 <1.0 <1.0 0.5 <1.0 <10.0 0.9 <1.0 <1.0 <2.0 <10.0 <1.0 <1.0 <1.0 <1.0 <1.0
SBW-6 2/21/2020 <1.0 10.7 16.1 3 6.9 3.1 <1.0 <1.0 <1.0 <1.0 1 0.4 <10.0 <1.0 <1.0 <1.0 <2.0 <10.0 <1.0 <1.0 <1.0 <1.0 <1.0
SBW-7 2/21/2020 <1.0 4.7 5.2 0.7 1.6 0.8 1 <1.0 <1.0 0.4 <1.0 <1.0 <10.0 0.8 <1.0 1,070 <2.0 <10.0 <1.0 1.5 0.4 4.2 4.4
MW-1 7/27/2021 <1.0 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <2.0 <10.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-2 7/27/2021 <1.0 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 5.1 <2.0 <10.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-3 7/27/2021 <1.0 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <2.0 <10.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-4 7/27/2021 <1.0 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 0.9 <1.0 <1.0 <2.0 <10.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-5 7/27/2021 <1.0 <0.4 0.4 <1.0 <1.0 <1.0 <1.0 <1.0 0.6 <1.0 <1.0 <1.0 <10 <1.0 <1.0 151 <2.0 <10.0 <1.0 3.2 1.5 1.1 <1.0
MW-1 4/19/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-2 4/19/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 3.2 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-3 4/19/2023 <0.4 1.2 1.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-4 4/19/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-5 4/19/2023 <0.4 0.6 0.8 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 537 <2.0 <1.0 <1.0 <1.0 <1.0 8.7 2.2
MW-1 5/15/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-2 5/15/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 3.4 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-3 5/15/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-4 5/15/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
MW-5 5/15/2023 <0.4 0.9 1.3 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 568 <2.0 <1.0 <1.0 <1.0 <1.0 12.2 2.1
MW-5
(field dup.) 5/15/2023 <0.4 1.0 1.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 570 <2.0 <1.0 <1.0 <1.0 <1.0 12.2 2.3
trip blank 5/15/2023 <0.4 <0.4 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <2.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
NE 5 1,000 700 1,000 NE NE NE NE 5 NE NE NE 5 5 70 5 5,600 NE 5 5 100 2
1970 6.93 80,700 15.2 1,620 20.1 821 22.8 33.4 9.78 1040 7.33 NE 5210 1.81 NE 9230 9,410,000 NE 65.2 7.43 457 2.45
General Notes
Analyzed VOCs not listed in the table were below laboratory minimum reporting levels
Definitions
VOCs = volatile organic compounds field dup. = field duplicate
g/L = micrograms per liter, similar to parts per billion (ppb)EPA = Environmental Protection Agency
TRPH = total recoverable petroleum hydrocarbons RSLs = Regional Screening Levels
MBTEXN = methyl tertiary-butyl ether (MTBE), benzene, toluene, ethyl benzene, total xylenes, and naphthalene NE = Not established
MTBE = methyl tertiary-butyl ether – = Not Analyzed
SLs = Screening Levels Bold analyte result = Exceeds EPA MCLs
VISL Target GW Conc. = Vapor Intrusion Screening Levels Target Groundwater Concentrations 2 = Current U.S. EPA RSLs
NA =Not applicable OR not applicable because the constiutent was below laboratory quantifiable limits or "non-detect" SBW-5,6, and 7 converted to MW-3,4, and 5 respectively.
VISL Target GW Conc.
US EPA MCLs2
Date
VOCs (g/L)
MBTEXN Other VOCs
Te
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VP-1 sub-slab 7/8/2021 1000 48.0 0.71 0.41 7.30 1.9 13.0 1.50 2.1 4.0 210 1.6 1.9 ND 3.3 1.1 1.8 14.0 5.5 17.0 0.81 1.7 14.0 ND ND 250 0.2
VP-2 sub-slab 7/8/2021 430 1.90 0.51 ND 2.20 ND 43.0 nd 1.7 7.6 390 3.6 12.0 1.2 3.7 2.7 2.0 15.0 4.9 19.0 0.79 1.2 7.3 1.1 1.0 210 1.2
VP-3 sub-slab 7/8/2021 270 2.00 ND ND 3.60 ND 7.50 ND 1.7 2.2 260 0.50 1.8 ND 1.8 ND ND 6.9 3.0 1.4 0.72 1.2 4.7 ND ND 93.0 1.4
VP-4 sub-slab 7/8/2021 390 1.70 ND ND 1.90 ND 4.80 ND ND 1.1 80 ND ND ND 1.6 ND ND 5.2 2.0 2.7 0.71 1.2 3.1 ND ND 110 0.5
V5indoor Indoor Air 10/19/2021 2.4 2.0 1.3 3.6 48 14 9.6 12 ND 3.8 1900 26 ND 22 44 71 44 100 64 ND 1.8 1.1 150 ND ND 2300 na
VISL Predicted Air Conc. Result 30 0.780 0.533
47.2 438 394 0.41 260 260 22,000 NE 130 13,000 140,000 1.6 3100 26,000 4.91 61 1800 NE 440 21,900 1,230 NE 22,000 0.533 NE Unfract
VISL Target Sub-Slab Conc. 1570 14600 13100 13.6 8760 8760 730000 4380 4.38E+05 NE 52.4 1.02E+05 8.76E+05 164 1.02E+05 5.84E+04 1.46E-04 1.46E-04 7.30E+05 4.09E+04 NE 7.30E+05 17.8 NE
Non-carcinogenic VISL (THQ=1)1750 438 394 8.76 263 263 21,900 NE 131 13100 NE 131 3070 26300 4380 3070 1750 438 438 21900 2630 21900 428 NE
Cumulative HI SubSlab 0.571429 0.10959 0.001802 0.05 0.02776 0.00722 0.00196 NE 0.0160305 0.0005802 0.027 0.0039088 4.5627E-05 0.0008 0.0008795 0.001143 0.0342466 0.012557 0.000868 0.000308 NE 0.0006393 0.00257 NE
Cumulative HI Indoor Air 0.001371 0.00457 0.003299 0.41 0.18251 0.05323 0.00044 NE 0 0.0002901 0.198 0 0.0008365 0.01 0.023127 0.025143 0.2283105 0.146119 0 0.0006844 NE 0.0068493 0 NE
Notes:
RSLs= US EPA Regional Screening Levels (current)
Freon = total freon of the three (3) different types Freon 114, Freon 11, and Freon 113
ND= below laboratory quantifiable limits ("Non-detect")
Results are first compared RSLs. Those results exceeding RSLs are then compared to Industrial VISL Target Sublab and Predicted Air Concentrations.
NE = not established
VISL Target Subslab = Modeled output of the maximum recommend concentration of subslab soil gas.
VISL Predicted Air Conc = Indoor air concentration calculated or modeled from the subslab soil gas result (based on highest subslab gas result).
Afss = 0.03. This is a commercial structure. Adjustments to Afss, however, are allowed for current project by US EPA VISL guidelines and is a variable in the model for industrial facilities.
VISL Hazard Quotient = 1
Unfract = Unfractionated between medium and low aliphatics and aromatics for the RSL calculator.
Table 3: Indoor and Soil Vapor Analytical Results as well as VISL Modeling Results.
All concentrations are expressed in micrograms per cubic meter (μg/m3) unless noted otherwise
Date
U.S. EPA RSL for Industrial Air
Subslab
Sample
Name Depth (Feet)
Table 4. Predicted Vapor Intrusion from Groundwater Contamination.
Chemical
Site
Groundwater
Concentration
(µg/L)
Site
Indoor Air
Concentration
(µg/m3)
Target Indoor Air
Concentration
(µg/m3)
VI
Hazard
HQ (unitless)
Carbon Disulfide 0.90 0.53 3070.0 1.73E-04
Dichloroethane, 1,1- 0.60 0.14 7.67 -
Dichloroethylene, cis-1,2- 151.00 - - -
Dichloroethylene, trans-1,2- 1.10 0.42 175.00 2.41E-03
Dichloropropene, cis-1,3- 0.00 - - -
Tetrachloroethylene 3.20 2.32 47.20 1.32E-02
Toluene 0.40 0.11 21900.0 4.96E-06
Trichloroethylene 1.50 0.60 2.99 6.90E-02
*Sum

- - 8.48E-02
ug/L = Micrograms per liter or parts per billion
ug/m3  = micrograms  per cubic meter
HQ= hazard quotient 
Chemical
Measured Site
Sub-Slab and
Exterior Soil
Gas
Concentration
Target
Sub-Slab and
Near-source Soil
Gas
Concentration
Modeled Result:
Site
Indoor Air
Concentration
Target
Indoor Air
Concentration
Benzene 3.60 12.000 0.108 0.360
Butadiene, 1,3- 0.410 3.120 0.012 0.094
Chloroform 1.10 4.070 0.033 0.122
Ethylbenzene 3.70 37.40 0.111 1.120
Tetrachloroethylene 1000.00 139.00 30.00 4.170
Trimethylbenzene, 1,2,4- 7.30 209.00 0.219 6.260
Bold Red indicates exceedances
VISL = US EPA Vapor Intrusion Screening Levels
ug/m3 = micrograms per cubic meter
Table 5. Residental Vapor Intrusion Risk Scenario Results from VISL (ug/m3).
Output generated 21NOV2021:17:25:54

APPENDIX C
SOIL BORING LOGS

Boring:SB‐1
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h

(
F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
Gr
a
p
h
i
c

L
o
g
US
C
S
0
0
6.5‐
7
0
So
i
l

S
a
m
p
l
e
WDM‐103B‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
9/5/2019
Direct Push Services, LLC
Visual Classification
Asphalt/Road base
SB‐1
Light gray silty clay with brown mottling.  Dense.  No staining.  No odor.
5
10
44/
60
39/
60
36/
6015
ML
CL
End boring at 15 feet bgs. Groundwater encountered at about 9.5 feet bgs.  No 
odor.
Dark brown  clayey silt.  Dense.  Moist.  No staining.  No odor.
Brown silty clay.  Soft.  Wet.  No staining.  No odor.
Boring:SB‐2
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h

(
F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
Gr
a
p
h
i
c

L
o
g
US
C
S
0
0
6.5‐
7
0
So
i
l

S
a
m
p
l
e
WDM‐103B‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
9/5/2019
Direct Push Services, LLC
Visual Classification
Concrete
End boring at 10 feet bgs. Groundwater encountered at about 8 feet bgs.  No 
odor.
SB‐2
5
10
24/
60
34/
60
Brown to dark brown clayey silt.  Dark gray staining between 6 to 7 feet.  
Slight petroleum odor between about 6 to 7 feet.
Light gray silty clay.  Soft.  Wet.  No staining.  No odor.
ML
CL
Boring:SB‐3
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h

(
F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
Gr
a
p
h
i
c

L
o
g
US
C
S
0
0
6.5‐
7
0
So
i
l

S
a
m
p
l
e
WDM‐103B‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
9/5/2019
Direct Push Services, LLC
Visual Classification
Concrete
End boring at 10 feet bgs. Groundwater encountered at about 8 feet bgs.  No 
odor.
SB‐3
5
10
34/
60
44/
60
Brown to dark brown clayey silt.  No staining.  No odor.
Brown silty clay.  Soft.  Wet.  No staining.  No odor.
ML
CL
Boring:SB‐4
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h

(
F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
Gr
a
p
h
i
c

L
o
g
US
C
S
0
0
6.5‐
7
0
ML
Brown silty clay.  Soft.  Wet.  No staining.  No odor.
Brown to dark brown clayey silt.  No staining.  No odor.
CL
End boring at 10 feet bgs. Groundwater encountered at about 8 feet bgs.  No 
odor.
SB‐4
5
10
32/
60
44/
60
So
i
l

S
a
m
p
l
e
WDM‐103B‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
9/5/2019
Direct Push Services, LLC
Visual Classification
Concrete
Boring:SB‐5
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h
 (F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
 (p
p
m
)
Gr
a
p
h
i
c
 Lo
g
US
C
S
0
9‐
0 
0
Light gray silty clay with orgainc fragments.  Soft.  Wet.  No staining.  No odor.
End boring at 15 feet bgs. Groundwater encountered at about 8 feet bgs.  No 
odor.
5
10
36/
60
38/
60
40/
6015
SB‐5
ML
CL
Redish to dark brown clayey silt.  Dense. Moist. No staining.  No odor.
So
i
l
 Sa
m
p
l
e
WDM‐103C‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
2/21/2020
Direct Push Services, LLC
Visual Classification
Asphalt/Road base
Boring:SB‐6
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h
 (F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
 (p
p
m
)
Gr
a
p
h
i
c
 Lo
g
US
C
S
0
9‐
0 
0
So
i
l
 Sa
m
p
l
e
WDM‐103C‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
2/21/2020
Direct Push Services, LLC
Visual Classification
Asphalt/Road base
28/
6015
SB‐6
5
10
55/
60
40/
60
Reddish to dark brown clayey silt.  Varies dense to soft. Moist. No staining.  No 
odor.
Light gray silty clay with orgainc fragments.  Soft.  Wet.  No staining.  No odor.
ML
CL
End boring at 15 feet bgs. Groundwater encountered at about 8 feet bgs.  No 
odor.
Boring:SB‐7
Page 1 of 1
Project Name: Project Number:
Date: Project Location
Drilling Contractor: Salt Lake City, UT
Logged By: Drilling Method:
Notes:
De
p
t
h
 (F
e
e
t
)
Sa
m
p
l
e
Re
c
o
v
e
r
y
PI
D
 (p
p
m
)
Gr
a
p
h
i
c
 Lo
g
US
C
S
0
9‐
0 
0
Reddish to dark brown clayey silt.  Varies dense to soft. Moist.  Wet below 8 
feet. No staining.  No odor.
End boring at 15 feet bgs. Groundwater encountered at about 8 feet bgs.  No 
odor.
5
10
28/
60
30/
60
25/
6015
SB‐7
Light gray silty clay with orgainc fragments.  Soft.  Wet.  No staining.  No odor.CL
ML
So
i
l
 Sa
m
p
l
e
WDM‐103C‐UT
953 South Edison Street
PushprobeDavid W. Christiansen
Auto Shop Repair Facility
2/21/2020
Direct Push Services, LLC
Visual Classification
Asphalt/Road base

APPENDIX D
LABORATORY ANALYTICAL REPORT

The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Applied Geoscience and Environmental
Attn: David Christiansen
5455 West 10030 North
Highland, UT 84003
Work Order: 19I0311
Project: WDM-103B-UT
9/16/2019
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-1
Lab ID: 19I0311-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 8:45
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/10/199/9/190.1 SM 2540G72.3Total Solids
mg/kg dry 9/13/199/13/19336EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035ANDAcetone
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromoform
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromomethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 2 of 23Page 2 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-1 (cont.)
Lab ID: 19I0311-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 8:45
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDCarbon Tetrachloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloroform
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDibromomethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDIsobutanol
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDNaphthalene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDStyrene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDToluene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 3 of 23Page 3 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-2
Lab ID: 19I0311-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 9:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/10/199/9/190.1 SM 2540G72.3Total Solids
mg/kg dry 9/13/199/13/19324EPA 1664A350TRPH (SGT-HEM)
Volatile Organic Compounds
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035ANDAcetone
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromoform
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromomethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 4 of 23Page 4 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-2 (cont.)
Lab ID: 19I0311-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 9:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDCarbon Tetrachloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloroform
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDibromomethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDIsobutanol
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 9/9/199/9/190.35 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDNaphthalene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 9/9/199/9/190.69 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDStyrene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDToluene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 5 of 23Page 5 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-3
Lab ID: 19I0311-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 11:35
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/10/199/9/190.1 SM 2540G73.7Total Solids
mg/kg dry 9/13/199/13/19327EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 9/9/199/9/190.34 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 9/9/199/9/190.34 EPA 8260B/5035ANDAcetone
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromoform
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDBromomethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 6 of 23Page 6 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-3 (cont.)
Lab ID: 19I0311-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 11:35
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDCarbon Tetrachloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloroethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloroform
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDChloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.68 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDibromomethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 9/9/199/9/190.68 EPA 8260B/5035ANDIsobutanol
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 9/9/199/9/190.34 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 9/9/199/9/190.34 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 9/9/199/9/190.68 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDNaphthalene
mg/kg dry 9/9/199/9/190.68 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 9/9/199/9/190.68 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDStyrene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDToluene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 9/9/199/9/190.03 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 7 of 23Page 7 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-4
Lab ID: 19I0311-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:28
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/10/199/9/190.1 SM 2540G60.5Total Solids
mg/kg dry 9/13/199/13/19412EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 9/9/199/9/190.41 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 9/9/199/9/190.41 EPA 8260B/5035ANDAcetone
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDBenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDBromobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDBromoform
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDBromomethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 8 of 23Page 8 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SB-4 (cont.)
Lab ID: 19I0311-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:28
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDCarbon Tetrachloride
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDChloroethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDChloroform
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDChloromethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.83 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDDibromomethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 9/9/199/9/190.83 EPA 8260B/5035ANDIsobutanol
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 9/9/199/9/190.41 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 9/9/199/9/190.41 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 9/9/199/9/190.83 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDNaphthalene
mg/kg dry 9/9/199/9/190.83 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 9/9/199/9/190.83 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDStyrene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDToluene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 9/9/199/9/190.04 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 9 of 23Page 9 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-1
Lab ID: 19I0311-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 8:58
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
mg/L 9/16/199/16/195EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030AND2-Hexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3,5-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,4-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030AND2-Nitropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcetone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcrylonitrile
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.6Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromoform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 10 of 23Page 10 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-1 (cont.)
Lab ID: 19I0311-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 8:58
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloromethane
ug/L 9/9/199/9/195.0 EPA 8260B/5030A140cis-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDCyclohexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDEthyl Acetate
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthyl Ether
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDIsobutanol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 9/9/199/9/192.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDNaphthalene
ug/L 9/9/199/9/1940.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDNitrobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDStyrene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A2.0Tetrachloroethene
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.7Toluene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A1.8trans-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A1.0Trichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.9Vinyl Chloride
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 11 of 23Page 11 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-1 (cont.)
Lab ID: 19I0311-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 8:58
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 12 of 23Page 12 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-2
Lab ID: 19I0311-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 11:16
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
mg/L 9/12/199/12/195EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.51,1-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030AND2-Hexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A5.01,2-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3,5-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,4-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030AND2-Nitropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcetone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcrylonitrile
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromoform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 13 of 23Page 13 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-2 (cont.)
Lab ID: 19I0311-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 11:16
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030A13.4cis-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDCyclohexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDEthyl Acetate
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthyl Ether
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDIsobutanol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 9/9/199/9/192.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDNaphthalene
ug/L 9/9/199/9/1940.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDNitrobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDStyrene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDTetrachloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDToluene
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.7trans-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDTrichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.7Vinyl Chloride
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 14 of 23Page 14 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-2 (cont.)
Lab ID: 19I0311-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 11:16
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 15 of 23Page 15 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-3
Lab ID: 19I0311-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:06
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
mg/L 9/12/199/12/195EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030AND2-Hexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3,5-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,4-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030AND2-Nitropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcetone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcrylonitrile
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.4Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromoform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 16 of 23Page 16 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-3 (cont.)
Lab ID: 19I0311-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:06
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030A3.3cis-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDCyclohexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDEthyl Acetate
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthyl Ether
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDIsobutanol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 9/9/199/9/192.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDNaphthalene
ug/L 9/9/199/9/1940.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDNitrobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDStyrene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A6.8Tetrachloroethene
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.7Toluene
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.4trans-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A2.7Trichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDVinyl Chloride
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 17 of 23Page 17 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-3 (cont.)
Lab ID: 19I0311-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:06
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDXylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 18 of 23Page 18 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-4
Lab ID: 19I0311-08Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:46
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
mg/L 9/12/199/12/195EPA 1664ANDTRPH (SGT-HEM)
Volatile Organic Compounds
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030AND2-Hexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2,4-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3,5-Trimethylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND1,4-Dichlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030AND2-Nitropropane
ug/L 9/9/199/9/191.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcetone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDAcrylonitrile
ug/L 9/9/199/9/191.0 EPA 8260B/5030A1.2Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromoform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDBromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Disulfide
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 19 of 23Page 19 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-4 (cont.)
Lab ID: 19I0311-08Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:46
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChlorobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloroform
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDChloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030A17.8cis-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDCyclohexanone
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDibromomethane
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDEthyl Acetate
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDEthyl Ether
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDIsobutanol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 9/9/199/9/1910.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 9/9/199/9/192.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDNaphthalene
ug/L 9/9/199/9/1940.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 9/9/199/9/1920.0 EPA 8260B/5030ANDNitrobenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDStyrene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A4.0Tetrachloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A1.5Toluene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A3.6trans-1,2-Dichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L 9/9/199/9/191.0 EPA 8260B/5030A1.5Trichloroethene
ug/L 9/9/199/9/191.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.8Vinyl Chloride
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 20 of 23Page 20 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Sample ID: SBW-4 (cont.)
Lab ID: 19I0311-08Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/5/19 12:46
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L J9/9/199/9/191.0 EPA 8260B/5030A0.3Xylenes, total
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 21 of 23Page 21 of 24
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
9/5/19 13:50 @ 7.4 °C
9/16/2019
WDM-103B-UT
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: WDM-103B-UT CtF WO#: 19I0311
www.ChemtechFord.com
Page 22 of 23Page 22 of 24
Pa
g
e

2
3

o
f

2
4
Page 24 of 24
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Applied Geoscience and Environmental
Attn: David Christiansen
5455 West 10030 North
Highland, UT 84003
Work Order: 20B0963
Project: WDM-103C-UT
2/25/2020
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SB-5
Lab ID: 20B0963-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:10
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/202/24/200.1 SM 2540G70.3Total Solids
Volatile Organic Compounds
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 2/24/202/24/200.36 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 2/24/202/24/200.36 EPA 8260B/5035ANDAcetone
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromoform
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromomethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDCarbon Disulfide
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDCarbon Tetrachloride
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 2 of 15Page 2 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SB-5 (cont.)
Lab ID: 20B0963-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:10
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChloroform
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 2/24/202/24/200.71 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDDibromomethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 2/24/202/24/200.71 EPA 8260B/5035ANDIsobutanol
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 2/24/202/24/200.36 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 2/24/202/24/200.36 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 2/24/202/24/200.71 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDNaphthalene
mg/kg dry 2/24/202/24/200.71 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 2/24/202/24/200.71 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDStyrene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDToluene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 3 of 15Page 3 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SB-6
Lab ID: 20B0963-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:42
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/202/24/200.1 SM 2540G73.8Total Solids
Volatile Organic Compounds
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 2/24/202/24/200.34 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 2/24/202/24/200.34 EPA 8260B/5035ANDAcetone
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDBenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDBromobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDBromoform
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDBromomethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDCarbon Disulfide
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDCarbon Tetrachloride
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 4 of 15Page 4 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SB-6 (cont.)
Lab ID: 20B0963-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:42
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDChloroethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDChloroform
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDChloromethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 2/24/202/24/200.68 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDDibromomethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 2/24/202/24/200.68 EPA 8260B/5035ANDIsobutanol
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 2/24/202/24/200.34 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 2/24/202/24/200.34 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 2/24/202/24/200.68 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDNaphthalene
mg/kg dry 2/24/202/24/200.68 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 2/24/202/24/200.68 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDStyrene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDToluene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 2/24/202/24/200.03 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 5 of 15Page 5 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SB-7
Lab ID: 20B0963-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 10:10
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%2/25/202/24/200.1 SM 2540G71.3Total Solids
Volatile Organic Compounds
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,1-Trichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,2-Trichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1-Dichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1-Dichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,1-Dichloropropene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,3-Trichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,3-Trichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,4-Trichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2,4-Trimethylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dibromoethane (EDB)
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dichloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,2-Dichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,3,5-Trimethylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,3-Dichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,3-Dichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND1,4-Dichlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND2,2-Dichloropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND2-Chlorotoluene
mg/kg dry 2/24/202/24/200.35 EPA 8260B/5035AND2-Nitropropane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND4-Chlorotoluene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035AND4-Isopropyltoluene
mg/kg dry 2/24/202/24/200.35 EPA 8260B/5035ANDAcetone
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromochloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromodichloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromoform
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDBromomethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDCarbon Disulfide
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDCarbon Tetrachloride
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 6 of 15Page 6 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SB-7 (cont.)
Lab ID: 20B0963-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 10:10
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChlorobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChloroethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChloroform
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDChloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDcis-1,2-Dichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDcis-1,3-Dichloropropene
mg/kg dry 2/24/202/24/200.70 EPA 8260B/5035ANDCyclohexanone
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDDibromochloromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDDibromomethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDDichlorodifluoromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDEthyl Acetate
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDEthyl Ether
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDEthylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDHexachlorobutadiene
mg/kg dry 2/24/202/24/200.70 EPA 8260B/5035ANDIsobutanol
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDIsopropylbenzene
mg/kg dry 2/24/202/24/200.35 EPA 8260B/5035ANDMethyl Ethyl Ketone
mg/kg dry 2/24/202/24/200.35 EPA 8260B/5035ANDMethyl Isobutyl Ketone
mg/kg dry 2/24/202/24/200.70 EPA 8260B/5035ANDMethylene Chloride
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDNaphthalene
mg/kg dry 2/24/202/24/200.70 EPA 8260B/5035ANDn-Butyl Alcohol
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDn-Butylbenzene
mg/kg dry 2/24/202/24/200.70 EPA 8260B/5035ANDNitrobenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDn-Propyl Benzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDsec-Butyl Benzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDStyrene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDtert-Butylbenzene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDTetrachloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDToluene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDtrans-1,2-Dichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDtrans-1,3-Dichloropropene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDTrichloroethene
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDTrichlorofluoromethane
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDVinyl Chloride
mg/kg dry 2/24/202/24/200.04 EPA 8260B/5035ANDXylenes, total
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 7 of 15Page 7 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SBW-5
Lab ID: 20B0963-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:20
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030AND2-Hexanone
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.51,2,4-Trimethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3,5-Trimethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,4-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030AND2-Nitropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDAcetone
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDAcrylonitrile
ug/L 2/24/202/24/201.0 EPA 8260B/5030A5.4Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromochloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromoform
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromomethane
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.9Carbon Disulfide
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChlorobenzene
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 8 of 15Page 8 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SBW-5 (cont.)
Lab ID: 20B0963-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:20
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloroform
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDcis-1,2-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030ANDCyclohexanone
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDibromomethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDEthyl Acetate
ug/L 2/24/202/24/201.0 EPA 8260B/5030A1.6Ethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDEthyl Ether
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDIsobutanol
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 2/24/202/24/202.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 2/24/202/24/201.0 EPA 8260B/5030A1.4Naphthalene
ug/L 2/24/202/24/2040.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030ANDNitrobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDStyrene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTetrachloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030A8.4Toluene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtrans-1,2-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTrichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDVinyl Chloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030A3.3Xylenes, total
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 9 of 15Page 9 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SBW-6
Lab ID: 20B0963-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030AND2-Hexanone
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030A1.01,2,4-Trimethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.41,3,5-Trimethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,4-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030AND2-Nitropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDAcetone
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDAcrylonitrile
ug/L 2/24/202/24/201.0 EPA 8260B/5030A10.7Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromochloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromoform
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromomethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDCarbon Disulfide
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChlorobenzene
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 10 of 15Page 10 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SBW-6 (cont.)
Lab ID: 20B0963-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 9:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloroform
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDcis-1,2-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030ANDCyclohexanone
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDibromomethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDEthyl Acetate
ug/L 2/24/202/24/201.0 EPA 8260B/5030A3.0Ethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDEthyl Ether
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDIsobutanol
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 2/24/202/24/202.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 2/24/202/24/201.0 EPA 8260B/5030A3.1Naphthalene
ug/L 2/24/202/24/2040.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030ANDNitrobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDStyrene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTetrachloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030A16.1Toluene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtrans-1,2-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTrichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDVinyl Chloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030A6.9Xylenes, total
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 11 of 15Page 11 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SBW-7
Lab ID: 20B0963-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 10:20
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,1,2-Tetrachloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,1-Trichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2,2-Tetrachloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2-Trichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1,2-Trichlorotrifluoroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030A1.01,1-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,1-Dichloropropene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030AND2-Hexanone
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,3-Trichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,3-Trichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,4-Trichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2,4-Trimethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dibromo-3-chloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dibromoethane (EDB)
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichlorobenzene
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.41,2-Dichloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,2-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3,5-Trimethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND1,3-Dichloropropane
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.41,4-Dichlorobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND2,2-Dichloropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND2-Chlorotoluene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030AND2-Nitropropane
ug/L 2/24/202/24/201.0 EPA 8260B/5030AND4-Chlorotoluene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDAcetone
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDAcrylonitrile
ug/L 2/24/202/24/201.0 EPA 8260B/5030A4.7Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromochloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromodichloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromoform
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDBromomethane
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.8Carbon Disulfide
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDCarbon Tetrachloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChlorobenzene
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 12 of 15Page 12 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Sample ID: SBW-7 (cont.)
Lab ID: 20B0963-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/21/20 10:20
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloroethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloroform
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDChloromethane
ug/L 2/24/202/24/2050.0 EPA 8260B/5030A1070cis-1,2-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDcis-1,3-Dichloropropene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030ANDCyclohexanone
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDibromochloromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDibromomethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDDichlorodifluoromethane
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDEthyl Acetate
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.7Ethylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDEthyl Ether
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDHexachlorobutadiene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDIsobutanol
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDIsopropylbenzene
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDMethyl Ethyl Ketone
ug/L 2/24/202/24/2010.0 EPA 8260B/5030ANDMethyl Isobutyl Ketone
ug/L 2/24/202/24/202.0 EPA 8260B/5030ANDMethylene Chloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDMethyl-tert-butyl ether (MTBE)
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.8Naphthalene
ug/L 2/24/202/24/2040.0 EPA 8260B/5030ANDn-Butyl Alcohol
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDn-Butylbenzene
ug/L 2/24/202/24/2020.0 EPA 8260B/5030ANDNitrobenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDn-Propyl Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDp-Isopropyltoluene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDsec-Butyl Benzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDStyrene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtert-Butylbenzene
ug/L 2/24/202/24/201.0 EPA 8260B/5030A1.5Tetrachloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030A5.2Toluene
ug/L 2/24/202/24/201.0 EPA 8260B/5030A4.2trans-1,2-Dichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDtrans-1,3-Dichloropropene
ug/L J2/24/202/24/201.0 EPA 8260B/5030A0.4Trichloroethene
ug/L 2/24/202/24/201.0 EPA 8260B/5030ANDTrichlorofluoromethane
ug/L 2/24/202/24/201.0 EPA 8260B/5030A4.4Vinyl Chloride
ug/L 2/24/202/24/201.0 EPA 8260B/5030A1.6Xylenes, total
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 13 of 15Page 13 of 16
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
2/21/20 11:10 @ 8.9 °C
2/25/2020
WDM-103C-UT
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: WDM-103C-UT CtF WO#: 20B0963
www.ChemtechFord.com
Page 14 of 15Page 14 of 16
Page 15 of 16
Page 16 of 16
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Applied Geoscience and Environmental
Attn: David Christiansen
5455 West 10030 North
Highland, UT 84003
Work Order: 21G0471
Project: WDM-103
7/14/2021
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-8
Lab ID: 21G0471-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 9:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%7/12/217/12/210.1 SM 2540G74.8Total Solids
Volatile Organic Compounds
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromoethane (EDB)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3,5-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,4-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2-Chlorotoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035AND2-Nitropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Chlorotoluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Isopropyltoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDAcetone
mg/kg dry 7/12/217/12/210.003 EPA 8260B/C /5035ANDBenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromodichloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromoform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Disulfide
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Tetrachloride
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 2 of 13Page 2 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-8 (cont.)
Lab ID: 21G0471-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 9:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDCyclohexanone
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDichlorodifluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Acetate
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Ether
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDHexachlorobutadiene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDIsobutanol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDIsopropylbenzene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Ethyl Ketone
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Isobutyl Ketone
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDMethylene Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDNaphthalene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDn-Butyl Alcohol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Butylbenzene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDNitrobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Propyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDsec-Butyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDStyrene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtert-Butylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTetrachloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDToluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichlorofluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDVinyl Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDXylenes, total
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 3 of 13Page 3 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-9
Lab ID: 21G0471-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 11:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%7/12/217/12/210.1 SM 2540G74.9Total Solids
Volatile Organic Compounds
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromoethane (EDB)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3,5-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,4-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2-Chlorotoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035AND2-Nitropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Chlorotoluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Isopropyltoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDAcetone
mg/kg dry 7/12/217/12/210.003 EPA 8260B/C /5035ANDBenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromodichloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromoform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Disulfide
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Tetrachloride
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 4 of 13Page 4 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-9 (cont.)
Lab ID: 21G0471-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 11:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloromethane
mg/kg dry J7/12/217/12/210.007 EPA 8260B/C /5035A0.006cis-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDCyclohexanone
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDichlorodifluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Acetate
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Ether
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDHexachlorobutadiene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDIsobutanol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDIsopropylbenzene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Ethyl Ketone
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Isobutyl Ketone
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDMethylene Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDNaphthalene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDn-Butyl Alcohol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Butylbenzene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDNitrobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Propyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDsec-Butyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDStyrene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtert-Butylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTetrachloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDToluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichlorofluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDVinyl Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDXylenes, total
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 5 of 13Page 5 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-10
Lab ID: 21G0471-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 12:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%7/12/217/12/210.1 SM 2540G72.6Total Solids
Volatile Organic Compounds
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromoethane (EDB)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3,5-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,4-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2-Chlorotoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035AND2-Nitropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Chlorotoluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Isopropyltoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDAcetone
mg/kg dry 7/12/217/12/210.003 EPA 8260B/C /5035ANDBenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromodichloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromoform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Disulfide
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Tetrachloride
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 6 of 13Page 6 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-10 (cont.)
Lab ID: 21G0471-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 12:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDCyclohexanone
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDichlorodifluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Acetate
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Ether
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDHexachlorobutadiene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDIsobutanol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDIsopropylbenzene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Ethyl Ketone
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Isobutyl Ketone
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDMethylene Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDNaphthalene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDn-Butyl Alcohol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Butylbenzene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDNitrobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Propyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDsec-Butyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDStyrene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtert-Butylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTetrachloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDToluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichlorofluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDVinyl Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDXylenes, total
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 7 of 13Page 7 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-11
Lab ID: 21G0471-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 13:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%7/12/217/12/210.1 SM 2540G72.6Total Solids
Volatile Organic Compounds
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromoethane (EDB)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3,5-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,4-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2-Chlorotoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035AND2-Nitropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Chlorotoluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Isopropyltoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDAcetone
mg/kg dry 7/12/217/12/210.003 EPA 8260B/C /5035ANDBenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromodichloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromoform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Disulfide
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Tetrachloride
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 8 of 13Page 8 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-11 (cont.)
Lab ID: 21G0471-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 13:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDCyclohexanone
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDichlorodifluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Acetate
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Ether
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDHexachlorobutadiene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDIsobutanol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDIsopropylbenzene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Ethyl Ketone
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Isobutyl Ketone
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDMethylene Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDNaphthalene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDn-Butyl Alcohol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Butylbenzene
mg/kg dry 7/12/217/12/210.14 EPA 8260B/C /5035ANDNitrobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Propyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDsec-Butyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDStyrene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtert-Butylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTetrachloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDToluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichlorofluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDVinyl Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDXylenes, total
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 9 of 13Page 9 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-12
Lab ID: 21G0471-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 14:40
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Inorganic
%7/12/217/12/210.1 SM 2540G74.1Total Solids
Volatile Organic Compounds
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,1-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2,2-Tetrachloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1,2-Trichlorotrifluoroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,1-Dichloropropene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,3-Trichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2,4-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromo-3-chloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dibromoethane (EDB)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3,5-Trimethylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,3-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND1,4-Dichlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2,2-Dichloropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND2-Chlorotoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035AND2-Nitropropane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Chlorotoluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035AND4-Isopropyltoluene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDAcetone
mg/kg dry 7/12/217/12/210.003 EPA 8260B/C /5035ANDBenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromodichloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromoform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDBromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Disulfide
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDCarbon Tetrachloride
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 10 of 13Page 10 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Sample ID: SB-12 (cont.)
Lab ID: 21G0471-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/8/21 14:40
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChlorobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloroform
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDChloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDcis-1,3-Dichloropropene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDCyclohexanone
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromochloromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDibromomethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDDichlorodifluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Acetate
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthyl Ether
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDEthylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDHexachlorobutadiene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDIsobutanol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDIsopropylbenzene
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Ethyl Ketone
mg/kg dry 7/12/217/12/210.07 EPA 8260B/C /5035ANDMethyl Isobutyl Ketone
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDMethylene Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDMethyl-tert-butyl ether (MTBE)
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDNaphthalene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDn-Butyl Alcohol
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Butylbenzene
mg/kg dry 7/12/217/12/210.13 EPA 8260B/C /5035ANDNitrobenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDn-Propyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDsec-Butyl Benzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDStyrene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtert-Butylbenzene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035A0.02Tetrachloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDToluene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,2-Dichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDtrans-1,3-Dichloropropene
mg/kg dry J7/12/217/12/210.007 EPA 8260B/C /5035A0.004Trichloroethene
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDTrichlorofluoromethane
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDVinyl Chloride
mg/kg dry 7/12/217/12/210.007 EPA 8260B/C /5035ANDXylenes, total
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 11 of 13Page 11 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/8/21 16:01 @ 5.1 °C
7/14/2021
WDM-103
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: WDM-103 CtF WO#: 21G0471
www.ChemtechFord.com
Page 12 of 13Page 12 of 14
Page 13 of 14
Page 14 of 14
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Applied Geoscience and Environmental
Attn: David Christiansen
5455 West 10030 North
Highland, UT 84003
Work Order: 21G1605
Project: WDM - Edison
7/30/2021
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-1
Lab ID: 21G1605-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:49
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030AND2-Hexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromo-3-chloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromoethane (EDB)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3,5-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,4-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030AND2-Nitropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND4-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcetone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcrylonitrile
ug/L 7/28/217/28/210.4 EPA 8260B/C /5030ANDBenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromodichloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromoform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Disulfide
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Tetrachloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChlorobenzene
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 2 of 13Page 2 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-1 (cont.)
Lab ID: 21G1605-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:49
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,3-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDCyclohexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDichlorodifluoromethane
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDEthyl Acetate
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthyl Ether
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDHexachlorobutadiene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDIsobutanol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDIsopropylbenzene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Ethyl Ketone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Isobutyl Ketone
ug/L 7/28/217/28/212.0 EPA 8260B/C /5030ANDMethylene Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDNaphthalene
ug/L 7/28/217/28/2140.0 EPA 8260B/C /5030ANDn-Butyl Alcohol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Butylbenzene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDNitrobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Propyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDp-Isopropyltoluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDsec-Butyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDStyrene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtert-Butylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTetrachloroethene
ug/L J7/28/217/28/211.0 EPA 8260B/C /5030A0.3Toluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,3-Dichloropropene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichlorofluoromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDVinyl Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDXylenes, total
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 3 of 13Page 3 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-2
Lab ID: 21G1605-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:32
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030AND2-Hexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromo-3-chloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromoethane (EDB)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3,5-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,4-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030AND2-Nitropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND4-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcetone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcrylonitrile
ug/L 7/28/217/28/210.4 EPA 8260B/C /5030ANDBenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromodichloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromoform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Disulfide
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Tetrachloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChlorobenzene
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 4 of 13Page 4 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-2 (cont.)
Lab ID: 21G1605-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:32
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030A5.1cis-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,3-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDCyclohexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDichlorodifluoromethane
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDEthyl Acetate
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthyl Ether
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDHexachlorobutadiene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDIsobutanol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDIsopropylbenzene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Ethyl Ketone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Isobutyl Ketone
ug/L 7/28/217/28/212.0 EPA 8260B/C /5030ANDMethylene Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDNaphthalene
ug/L 7/28/217/28/2140.0 EPA 8260B/C /5030ANDn-Butyl Alcohol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Butylbenzene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDNitrobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Propyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDp-Isopropyltoluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDsec-Butyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDStyrene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtert-Butylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTetrachloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDToluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,3-Dichloropropene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichlorofluoromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDVinyl Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDXylenes, total
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 5 of 13Page 5 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-3
Lab ID: 21G1605-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:17
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030AND2-Hexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromo-3-chloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromoethane (EDB)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3,5-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,4-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030AND2-Nitropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND4-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcetone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcrylonitrile
ug/L 7/28/217/28/210.4 EPA 8260B/C /5030ANDBenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromodichloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromoform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Disulfide
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Tetrachloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChlorobenzene
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 6 of 13Page 6 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-3 (cont.)
Lab ID: 21G1605-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:17
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,3-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDCyclohexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDichlorodifluoromethane
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDEthyl Acetate
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthyl Ether
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDHexachlorobutadiene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDIsobutanol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDIsopropylbenzene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Ethyl Ketone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Isobutyl Ketone
ug/L 7/28/217/28/212.0 EPA 8260B/C /5030ANDMethylene Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDNaphthalene
ug/L 7/28/217/28/2140.0 EPA 8260B/C /5030ANDn-Butyl Alcohol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Butylbenzene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDNitrobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Propyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDp-Isopropyltoluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDsec-Butyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDStyrene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtert-Butylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTetrachloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDToluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,3-Dichloropropene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichlorofluoromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDVinyl Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDXylenes, total
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 7 of 13Page 7 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-4
Lab ID: 21G1605-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:02
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030AND2-Hexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromo-3-chloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromoethane (EDB)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3,5-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,4-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030AND2-Nitropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND4-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcetone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcrylonitrile
ug/L 7/28/217/28/210.4 EPA 8260B/C /5030ANDBenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromodichloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromoform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromomethane
ug/L J7/28/217/28/211.0 EPA 8260B/C /5030A0.9Carbon Disulfide
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Tetrachloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChlorobenzene
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 8 of 13Page 8 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-4 (cont.)
Lab ID: 21G1605-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:02
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,3-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDCyclohexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDichlorodifluoromethane
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDEthyl Acetate
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthyl Ether
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDHexachlorobutadiene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDIsobutanol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDIsopropylbenzene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Ethyl Ketone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Isobutyl Ketone
ug/L 7/28/217/28/212.0 EPA 8260B/C /5030ANDMethylene Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDNaphthalene
ug/L 7/28/217/28/2140.0 EPA 8260B/C /5030ANDn-Butyl Alcohol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Butylbenzene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDNitrobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Propyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDp-Isopropyltoluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDsec-Butyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDStyrene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtert-Butylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTetrachloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDToluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,3-Dichloropropene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichlorofluoromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDVinyl Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDXylenes, total
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 9 of 13Page 9 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-5
Lab ID: 21G1605-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,1-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2,2-Tetrachloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1,2-Trichlorotrifluoroethane
ug/L J7/28/217/28/211.0 EPA 8260B/C /5030A0.61,1-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,1-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030AND2-Hexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,3-Trichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2,4-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromo-3-chloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dibromoethane (EDB)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3,5-Trimethylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,3-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND1,4-Dichlorobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2,2-Dichloropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND2-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030AND2-Nitropropane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030AND4-Chlorotoluene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcetone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDAcrylonitrile
ug/L 7/28/217/28/210.4 EPA 8260B/C /5030ANDBenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromodichloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromoform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDBromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Disulfide
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDCarbon Tetrachloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChlorobenzene
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 10 of 13Page 10 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Sample ID: MW-5 (cont.)
Lab ID: 21G1605-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/27/21 10:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloroform
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDChloromethane
ug/L 7/28/217/28/2112.5 EPA 8260B/C /5030A151cis-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDcis-1,3-Dichloropropene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDCyclohexanone
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromochloromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDibromomethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDDichlorodifluoromethane
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDEthyl Acetate
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDEthyl Ether
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDHexachlorobutadiene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDIsobutanol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDIsopropylbenzene
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Ethyl Ketone
ug/L 7/28/217/28/2110.0 EPA 8260B/C /5030ANDMethyl Isobutyl Ketone
ug/L 7/28/217/28/212.0 EPA 8260B/C /5030ANDMethylene Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDNaphthalene
ug/L 7/28/217/28/2140.0 EPA 8260B/C /5030ANDn-Butyl Alcohol
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Butylbenzene
ug/L 7/28/217/28/2120.0 EPA 8260B/C /5030ANDNitrobenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDn-Propyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDp-Isopropyltoluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDsec-Butyl Benzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDStyrene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtert-Butylbenzene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030A3.2Tetrachloroethene
ug/L J7/28/217/28/211.0 EPA 8260B/C /5030A0.4Toluene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030A1.1trans-1,2-Dichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDtrans-1,3-Dichloropropene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030A1.5Trichloroethene
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDTrichlorofluoromethane
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDVinyl Chloride
ug/L 7/28/217/28/211.0 EPA 8260B/C /5030ANDXylenes, total
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 11 of 13Page 11 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
7/27/21 14:26 @ 12.0 °C
7/30/2021
WDM - Edison
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: WDM - Edison CtF WO#: 21G1605
www.ChemtechFord.com
Page 12 of 13Page 12 of 14
Page 13 of 14
Page 14 of 14
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Applied Geoscience and Environmental
Attn: David Christiansen
5455 West 10030 North
Highland, UT 84003
Work Order: 23D1457
Project: Edison
4/25/2023
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-1
Lab ID: 23D1457-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 11:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L J-LOW-L4/20/234/20/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L 4/20/234/20/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcetone
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDBenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromoform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromomethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 2 of 13Page 2 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-1 (cont.)
Lab ID: 23D1457-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 11:55
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 4/20/234/20/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 4/20/234/20/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 4/20/234/20/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDStyrene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDToluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 3 of 13Page 3 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-2
Lab ID: 23D1457-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 12:25
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L J-LOW-L4/20/234/20/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L 4/20/234/20/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcetone
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDBenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromoform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromomethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 4 of 13Page 4 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-2 (cont.)
Lab ID: 23D1457-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 12:25
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030A3.2cis-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 4/20/234/20/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 4/20/234/20/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 4/20/234/20/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDStyrene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDToluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 5 of 13Page 5 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-3
Lab ID: 23D1457-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 12:45
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L J-LOW-L4/20/234/20/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L 4/20/234/20/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcetone
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 4/20/234/20/230.4 EPA 8260D /5030A1.2Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromoform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromomethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 6 of 13Page 6 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-3 (cont.)
Lab ID: 23D1457-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 12:45
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 4/20/234/20/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 4/20/234/20/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 4/20/234/20/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDStyrene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030A1.4Toluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 7 of 13Page 7 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-4
Lab ID: 23D1457-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 13:25
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L J-LOW-L4/20/234/20/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L 4/20/234/20/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcetone
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDBenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromoform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromomethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 8 of 13Page 8 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-4 (cont.)
Lab ID: 23D1457-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 13:25
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 4/20/234/20/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 4/20/234/20/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 4/20/234/20/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDStyrene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDToluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 9 of 13Page 9 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-5
Lab ID: 23D1457-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 13:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L J-LOW-L4/20/234/20/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L 4/20/234/20/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 4/20/234/20/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcetone
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 4/20/234/20/230.4 EPA 8260D /5030A0.6Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromoform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDBromomethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 10 of 13Page 10 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Sample ID: MW-5 (cont.)
Lab ID: 23D1457-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/19/23 13:50
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloroform
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDChloromethane
ug/L 4/20/234/20/23100EPA 8260D /5030A537cis-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 4/20/234/20/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 4/20/234/20/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 4/20/234/20/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 4/20/234/20/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 4/20/234/20/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 4/20/234/20/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDStyrene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L J4/20/234/20/231.0 EPA 8260D /5030A0.8Toluene
ug/L 4/20/234/20/231.0 EPA 8260D /5030A8.7trans-1,2-Dichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 4/20/234/20/231.0 EPA 8260D /5030A2.2Vinyl Chloride
ug/L 4/20/234/20/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 11 of 13Page 11 of 13
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
4/19/23 14:50 @ 9.9 °C
4/25/2023
Edison
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
J-LOW-L = Estimated low due to low recovery of LCS
Project Name: Edison CtF WO#: 23D1457
www.ChemtechFord.com
Page 12 of 13Page 12 of 13
Page 13 of 13
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Applied Geoscience and Environmental
Attn: David Christiansen
5455 West 10030 North
Highland, UT 84003
Work Order: 23E1268
Project: Edison
5/22/2023
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-1
Lab ID: 23E1268-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 15:20
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDBenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 2 of 17Page 2 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-1 (cont.)
Lab ID: 23E1268-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 15:20
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDToluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 3 of 17Page 3 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-2
Lab ID: 23E1268-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 15:35
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDBenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 4 of 17Page 4 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-2 (cont.)
Lab ID: 23E1268-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 15:35
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030A3.4cis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDToluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 5 of 17Page 5 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-3
Lab ID: 23E1268-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 16:05
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDBenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 6 of 17Page 6 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-3 (cont.)
Lab ID: 23E1268-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 16:05
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDToluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 7 of 17Page 7 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-4
Lab ID: 23E1268-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 16:45
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDBenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 8 of 17Page 8 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-4 (cont.)
Lab ID: 23E1268-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 16:45
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDToluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 9 of 17Page 9 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-5
Lab ID: 23E1268-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 17:00
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030A0.9Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 10 of 17Page 10 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-5 (cont.)
Lab ID: 23E1268-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 17:00
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/2350.0 EPA 8260D /5030A568cis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030A1.3Toluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030A12.2trans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030A2.1Vinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 11 of 17Page 11 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-5 Duplicate
Lab ID: 23E1268-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 17:00
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030A1.0Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 12 of 17Page 12 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: MW-5 Duplicate (cont.)
Lab ID: 23E1268-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 17:00
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/2350.0 EPA 8260D /5030A570cis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030A1.4Toluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030A12.2trans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030A2.3Vinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 13 of 17Page 13 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: Trip Blank
Lab ID: 23E1268-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 0:00
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,1-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2,2-Tetrachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1,2-Trichlorotrifluoroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,1-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030AND2-Hexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,3-Trichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2,4-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromo-3-chloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dibromoethane (EDB)
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3,5-Trimethylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,3-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND1,4-Dichlorobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2,2-Dichloropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND2-Chlorotoluene
ug/L J-LOW-C5/16/235/16/232.0 EPA 8260D /5030AND2-Nitropropane
ug/L 5/16/235/16/231.0 EPA 8260D /5030AND4-Chlorotoluene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcetone
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDAcrylonitrile
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDBenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromobenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromodichloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromoform
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDBromomethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDCarbon Disulfide
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDCarbon Tetrachloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChlorobenzene
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 14 of 17Page 14 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Sample ID: Trip Blank (cont.)
Lab ID: 23E1268-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/15/23 0:00
Preparation
Date/Time
Sampled By: David Christiansen
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds (cont.)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDChloroform
ug/L J-LOW-L5/16/235/16/231.0 EPA 8260D /5030ANDChloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDcis-1,3-Dichloropropene
ug/L 5/16/235/16/2310.0 EPA 8260D /5030ANDCyclohexanone
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromochloromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDibromomethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDDichlorodifluoromethane
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDEthyl Acetate
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDEthyl Ether
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDHexachlorobutadiene
ug/L 5/16/235/16/2320.0 EPA 8260D /5030ANDIsobutanol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDIsopropylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDMethyl Ethyl Ketone
ug/L 5/16/235/16/235.0 EPA 8260D /5030ANDMethyl Isobutyl Ketone
ug/L 5/16/235/16/232.0 EPA 8260D /5030ANDMethylene Chloride
ug/L 5/16/235/16/230.4 EPA 8260D /5030ANDMethyl-tert-butyl ether (MTBE)
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDNaphthalene
ug/L 5/16/235/16/2350.0 EPA 8260D /5030ANDn-Butyl Alcohol
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDn-Propyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDPentachloroethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDp-Isopropyltoluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDsec-Butyl Benzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDStyrene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtert-Butylbenzene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTetrachloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDToluene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,2-Dichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDtrans-1,3-Dichloropropene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichloroethene
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDTrichlorofluoromethane
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDVinyl Chloride
ug/L 5/16/235/16/231.0 EPA 8260D /5030ANDXylenes, total
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 15 of 17Page 15 of 17
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Applied Geoscience and Environmental
David Christiansen
5455 West 10030 North
Highland, UT 84003
PO#:
Receipt:
Date Reported:
Project Name:
5/16/23 8:28 @ 6.0 °C
5/22/2023
Edison
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Flag Descriptions
J-LOW-C = Estimated low due to low recovery of CCV
J-LOW-L = Estimated low due to low recovery of LCS
Project Name: Edison CtF WO#: 23E1268
www.ChemtechFord.com
Page 16 of 17Page 16 of 17
Page 17 of 17

APPENDIX E
UTAH DEPARTMENT OF ENVIRONMENTAL QUALITY COMMENTS

Comments for 953 South Edison Site
UTCA-0042
September 30, 2021

General Comments
1 – Based on the conclusions in the report, it appears that the two parcels (i.e., east versus west, or
however you wish to differentiate them)) may not meet similar standards. We therefore request that
the narratives and analytical data for the two parcels be separated for clarity. If a Site Management Plan
(SMP) and an Environmental Covenant (EC) are required for either site, then a public comment period
will be necessary and document clarity is essential.
2 – If one or both parcels no not qualify for NFA, restricted use will warrant the submittal of a draft SMP
and EC, to the Division’s Executive Secretary for review and approval. As mentioned above, the draft
SMP will be submitted for Public Comment before approval by the Executive Secretary. The approved
SMP ad EC will then need to be recorded with the county.
3. With respect to No Further Action (NFA), parcels must utilize residential standard and met additional
standards(see specific comment below). Currently, NFA has not been satisfactorily demonstrated.
4. Division management has recently discussed document submittals and the need for hardcopies. We
bring to your attention the following link: [e-mail] The Division will process documents
using this portal and will be able to satisfy State Archive requirements. Please submit official documents
using the referenced link.

Specific Comments
1. Laboratory Analytical Results

Trichloroethene (PCE). Please make the correction to TCE

2. Laboratory Analytical Results for Groundwater

The Division does not support the use of DERR ISL standards. Please delete any
reference to the use of DERR ISL standards and revise the report using the US EPA RSL
Table as source for standards for evaluation

3. Discussion of Vapor Results

Please see comment above and delete reference to DERR ISL.

Also, third paragraph. Please be specific when you use the term “US EPA RSL of
47.2ug/m3 for PCE”. This value is for the indoor air concentration for the commercial
industrial land use scenario, so it will be appropriate to refer to it as such to avoid any
confusion on a reader’s part.

Be specific when the term “RSL” is used throughout the document. The RSL Table has
various standards listed for specific parameters and as such the identified parameter needs
to be included with the RSL description.

Paragraph 4. It is correct to say that EPA recognizes that larger nonresidential buildings
with thick slabs and other factors like ventilation rates, etc., will have lower AFs than
residential buildings. However, EPA concludes that when appropriate, it will consider
appropriate building-specific data and analysis when evaluating VI into larger
nonresidential buildings. Thus, until such time that EPA comes out with building-specific
AFs corresponding to building information, the appropriate AF to used should be 0.03 for
subs lab attenuation factor. The AF = 0.25 has no technical foundation but conjecture and
arbitrary.

The use of a lower AF = 0.025 does not change the result or conclusion as opposed to
using the default AF = 0.03. Please revised your calculation results using an AF = 0.03
and change the indoor air concentration to 30 ug/m3 and the Target Sub slab Soil Gas
Concentration to 1570 ug/m3.

4. Conclusion and Recommendation

Please discussion groundwater concentration results with reference to EPA RSL Table
standards and delete reference to DERR ISL standard. Also since there are VOCs
detected in groundwater another appropriate metric to use in evaluating groundwater
standards should be the VISL Target Groundwater Concentration (TGC) for vapor
intrusion assessment in addition to the MCL which is appropriate for the ingestion
pathway. Please include TGC values for the VOCs in your Tables.

Subsurface Vapors. Please comment #3 above on AFs

5. Recommendations

Please note that the term “No Further Action” (NFA) by definition means unlimited land
use or unrestricted land use. So, for a site to qualify for an NFA four criteria must be met.
 Risk evaluation should be under the residential land use exposure scenario
 Ecological risk at the site must be insignificant or obtain a waiver
 Groundwater contamination level (quality) must be below MCL and other
standards like TGC if there are VOC contamination for vapor intrusion.
 Residual soil contamination must be less than the soil screening level (SSLs) for
protection of groundwater; (migration of contaminants to groundwater). The
Division by default accepts the use a dilution attenuation factor (DAF) of 20 for
initial evaluation.
Division of Waste Management and Radiation Control Comments
Phase II Environmental Site Assessment Limited Subsurface Investigation Report
953 Edison Street Auto Shop Repair Facility
(red font is completed)redo all graphics
General Comments
1.OSHA PELs are referenced throughout the Report in sections 3.5, 3.6, 4.3, 5.1, and Table 3.
OSHA standards are not relevant at RCRA sites, and therefore not appropriate for RCRA site
data evaluation.The assumptions under which OSHA standards are derived are not
consistent with RCRA sites,and their use should be avoided.The 8-hour air sample should
not be compared to the OSHA PELs as this is not an industrial hygiene workplace exposure
investigation.The indoor air sample can instead be compared to the U.S.EPA RSL Indoor
Worker air concentration or the VISL commercial/industrial air concentration limits.Please
revise the report to remove all OSHA references as this is not applicable to the site.
Groundwater Sampling
2.Section 3.4 of the Report states, “one groundwater sample was collected from each
monitoring well using either new 3/8-inch Teflon tubing connected to a peristaltic pump or
from disposable bailers.” Please clarify whether both sampling methods were used or
whether the pump or bailer were used for sampling.If both sampling methods were used,
please include information specifying which wells were sampled by each method and include
the flowrate for the peristaltic pump.
3.Field duplicate samples were not collected during the July 27,2021,sampling event.Section
3.4 of the Report states the reason for this was “the low sample population did not justify
duplicate field samples.”A small sample number is not a justification for not collecting
duplicate field samples. Duplicate field samples are an integral part of the Quality
Assurance/Quality Control of sample collection and analysis.The duplicate sample is used
to estimate sampling and laboratory precision. At least one duplicate field sample should be
collected for every sampling event, and at least one field duplicate should be collected for
every 10 samples.
4.The narrative in Section 4.2 of the Report states that the groundwater flow is in an overall
westerly to southwesterly direction. The two figures “Aerial View of Subject Property”and
the “Soil Boring Map”illustrate differing groundwater flow directions, southwesterly and
westerly respectively.If groundwater flow is westerly,as shown in the “Soil Boring Map”, it
may not support the conclusion that contaminants are moving onsite from the northern
property. The data from the MW wells should provide enough data to refine the groundwater
flow direction.Please revise the report to reflect this comment.
5.Related to the discussion in Comment #4, the Report figures are labeled incorrectly. The
“Soil Boring Map” does not illustrate locations of the soil borings. This map illustrates the
locations of the groundwater monitoring wells, water table surface, and general groundwater
flow direction. The “Aerial View of Subject Property” figure illustrates the location of the
soil borings, oil/water separators, used oil UST, and groundwater flow direction.
Additionally, both figures are labeled as “Property XXXX” with no reference to the name or
address of the subject property.Please revise the report to reflectthis comment.
6.The narrativein Section 4.2,Page 6 (paragraphs 2, 3, 4, and 5)of the Report compares PCE,
TCE, trans-1,2-DCE, and cis-1,2-DCE concentrations between the 2020SBW-7 and the 2021
MW-5 groundwater samples.The conclusions drawn from these comparisons are thatthe
above constituents have either increased or decreased in the vicinity of MW-5 from 2020 to
2021. These conclusions cannot be drawn from this data.While MW-5 is in close proximity
to the former location of SB-7,using data from two separate sample locations with two
separate sampling methods (soil boring groundwater grab sample vs. developed monitoring
well groundwater sample) is not appropriate.The “increases” and “decreases” discussed in
the report narrative may or may not be actual differences.
A similar discussion regarding cis-1,2-DCE concentrations is included in Section 5.1 of the
Report.
7.The narrative in Section 4.2, Page 6, (paragraph 6)states that benzene, which was detected
during the 2020 sampling event (SBW-5,-6, &-7), was concluded either to have attenuated to
non-detection in the 2021 samples from MW-3,-4, &-5,or the plume is not as widespread as
suggested as the previous direct push assessment in 2020.While the previous locations of
SBW-5,-6, &-7 are in close proximity to the locations of MW-3,-4, &-5,the SBW samples
were collected as a direct push soil boring grab sample and the MW samples were collected
from a developed monitoring well in a different location –albeit slight. The differing
groundwater collection methods may result in concentration differences for a number of
reasons.
Additionally, a groundwater sample from a single sampling even does not necessarily
indicate attenuation of a constituent as there may be seasonal groundwater differences or
annual groundwater differences. The SBW samples were collected during the month of
February 2020 and the MW samples were collected during July 2021.
The benzene attenuation discussion is also included in Sections 5.1 and 6.2 of the Report.
Vapor Point Locations and Vapor Sampling
8.The narrative in the first and fifth paragraphs in Section 4.3 of the Report compares the four
soil gas vapor sample concentrations to the industrial indoor air U.S. EPA RSLs for PCE.
Soil vapor concentrations cannot be compared directly to the industrial indoor air U.S. EPA
RSLs. The attenuation factor of 0.03 must first be applied to the soil gas vapor
concentrations.Please revise the textto reflect this comment.
9.The narrative in the second paragraph in Section 4.3 of the Report compares VOC
groundwater concentrations to the U.S. EPA MCLs in the context of general spatial
correlation with the soil vapor results. While the intent of the comparison is understood,
groundwater VOC concentrations are more appropriately compared to the Target
Groundwater Concentrations (TGWC)for Vapor Intrusion from the VISL calculator since
the pathway of concern here is the vapor intrusion inhalation pathway.Comparison with the
MCL would be appropriate if the groundwater ingestion pathway is complete.Please revise
text to reflect the use of the TGWC.
10.Four sub-slab soil gas vapor samples (VP-1,-2,-3, &-4) were collected during the 2021
investigation.The narrative in Section 4.3, paragraph two,states that the concentration of
these soil gas vapor samples for VOCs show a generally positive spatial correlation with the
groundwater results.The Report does not include an illustration of the vapor point locations.
Additionally, the information is not presented in a manner that would support the discussed
spatial correlation.Please include a figure that illustratessampling locations and results for
groundwater and soil vapor to support this statement.
11.The narrative included in Section 4.3 paragraphfour of the Report states that TPH compounds
were not fractionated for the indoor air vapor concentration prediction/modeling.It is
unclear what is meant by this statement.Section 3.5 of the Report states that soil vapor
samples were collected into SUMMA canisters and analyzed by U.S. EPA Method TO-15.
The analytical report verifies that U.S. EPA Method TO-15 was used for analysis.U.S. EPA
Method TO-15 does measure the individual VOCs.Please revise the text.
12.The narrative in Section 4.3 paragraph seven states that preliminary VISL modeling was
conducted of PCE and five other potentially impactful vapors using residential standards.
While the residential vapor intrusion risk results from the VISL modeling are presented in
Table 5, the output from the VISL calculations were not included as part of the report. Please
provide the VISL calculating outputas supporting information for the results.
13.Indoor air sample V5 was collected during October 2021. Concentrations of 1,2,4-
trimethylbenzene,ethyl benzene, and hexane exceeded the U.S. EPA RSL for Industrial Air.
While it is likely these constituents are related to the activities conducted in the auto shop, the
report does not contain a discussion of these sample results.Please include some narrative on
these results.
Report Recommendations
14.The narrative in Section 6.1 states that cis-1,2-DCE concentrationsare decreasingover time
and AG&E’s opinion is that no additional investigation is necessary.AG&E also
recommends that an Environmental Covenant and Site Management Plant be recorded for the
West Parcel No. 015. The Division cannot make a determination until after comments are
addressed and the requested information is incorporated into the Report.
15.The narrative in Section 6.2 states that AG&E recommends and requests a letter of No
Further Action based on benzene not being detected in the 2021 groundwater samples, and
the belief that benzene has attenuated,and no other compounds exceed residential levels.
The use of NFA is not appropriate in this context. NFA is used in context of unrestricted
land use. No further investigation, however, might be the more appropriate term for this
request. [Please see the previous set of comments from the Division.]
Furthermore, a single sampling event does not provide sufficient information to base a
conclusion of constituent attenuation. Additional groundwater samples collected over time
will be required to reach this conclusion.At this time,the Division cannot make a
determination until additional information is provided to resolve the question of benzene
presence.
Edison Phase II LSI March 24, 2022 Revision DWMRC Comments (Dated April 25, 2022)

1. OSHA Standards:
Comment #1 provided in an email from the Division, dated January 21, 2022, requested the
removal of all references to OSHA standards. These standards are not relevant at RCRA sites
and therefore not appropriate for RCRA site data evaluation. As these references to OSHA
standards have not been removed and references to NIOSH standards have also been included in
the most recent revision, any statements made in reference to these standards cannot be evaluated
by the Division. Additionally, the Division cannot concur with any statements or conclusions
related to these standards included in the report and therefore will disregard these statements.

2. Section 4.2 Groundwater Analytical Data:
Benzene was detected during the 2020 groundwater sampling event at locations SBW-5, SBW-6,
and SBW-7 at concentrations of 5.4 ug/L, 10.7 ug/L, and 4.7 ug/L respectively. As stated in the
report, the MCL for benzene is 5 ug/L and the results for SBW-5 and SBW-6 exceeded the
MCL. Subsequent groundwater sample results from the 2021 sampling event exhibited non-
detected concentrations of benzene in the closely corresponding monitoring wells MW-3, MW-4,
and MW-5. As the samples from these two events were collected using different methods (direct
push grab samples vs. developed monitoring well samples) and during different seasons
(February 2020 vs. July 2021), the non-detect data from the most recent samples will need to be
verified with additional sampling. A conclusion that benzene concentrations no longer exist in
groundwater at these locations cannot be determined with a single non-detect sample. As
benzene may be directly associated with the historical activities on the subject property, please
propose additional sampling to address this comment. Additional sampling should be proposed
during the timeframe when highest water levels are expected at the site.

3. Section 4.2 Groundwater Analytical Data:
The narrative in the 5th paragraph discusses benzene results and states in the second sentence,
“Benzene was not detected in groundwater samples SBW-5, SBW-6, and SBW-7 which
correlated with soil boring SB-5, SB-6, and SB-7 emplaced during the February 2020 LSI.” The
narrative further states in the fourth and fifth sentences, “Benzene was detected in SBW-5 and
SBW-6 at 5.4 and 10.7 ug/L, respectively, which exceeds the MCL of 5 ug/L during the February
20201 LSI. Benzene was detected in SBW-7 at 4.7 ug/L which is below the MCL of 5
ug/L.” Please correct the second sentence in this paragraph to be consistent with the information
in the rest of the report.

4. Section 4.3 Vapor Analytical Results
Vapor Intrusion (VI) evaluation at a site is based on Multiple Lines of Evidence (MLE).
Constituents detected in soil gas samples cannot be eliminated based solely on
comparison to target indoor air concentration (TIAC), especially if measured indoor air
data are not available. Soil gas data must be compared to the VISL target soil gas
concentration (TSGC) first to determine if they are exceeded. If multiple chemicals are
present in the soil gas, as it is in this case, the VISL calculator can be used to determine
the additive effects and cumulative risk, (See Division Table 3.). Calculated risk (VISL)
posed by PCE=1000ug/m3, benzene=26ug/m3 and ethylbenzene=44ug/m3 from soil gas
data was 1.4x10-6. This risk level is slightly above the 1x10-6 point of departure (POD).

If you only consider PCE soil gas concentration of 1000ug/m3 and a sub slab soil gas
attenuation factor (AF) of 0.03, predicted PCE indoor air concentration will be 0.03x1000
= 30 ug/m3. This value is below the PCE target industrial indoor air concentration of
47ug/m3. Since there are multiple chemicals detected in the soil gas one must address
their joint toxicity effects, (see Division Table 3). The report failed to evaluate the joint
multiple chemical effects.

The last sentence in Paragraph 2 states that all constituents collected from the monitoring
wells were below the RSL TGCs (Edison Table 3). Please revise the text to indicate that
the source of TGCs values is the VISL calculator. The RSL Table is the source for soil,
water, and air standards and does not include standards for VI.

VISL modeling using six (6) detected compounds (See Division Table 5) in soil gas
produced a residential cancer risk (CR) of 3.6x10-6. This falls in the acceptable risk range
and an SMP and EC will be required to protect human health and the environment if the
proposed land use was residential. Here again, VI assessment at a site is based on MLE
and not on only one line of evidence.

5. Section 4.3.1 Indoor Air Quality Sample VP-5
Please note again that OSHA standards are not applicable at RCRA sites. These standards
can not be used as a basis in support of any position by Edison. Indoor air samples from
VP-5 indicated the presence of several VOCs, notably benzene, ethylbenzene, hexane,
PCE, heptane, and total xylenes. Exposure to these contaminants will result in a CR of
2.67x10-6 as modeled by the VISL calculator, (see Division Table 6). This suggests that
the indoor air quality at the shop is very poor and institutional controls (ICs) through an
SMP and an EC must be relied upon for the protection of human health and the
environment. A conclusion that the VI pathway is complete, must be based on MLE,
absent that the Division recommends an SMP and an EC based on the limited lines of
evidence.

6. Section 4.3.2 Sub Slab Attenuation Factors AFss
It is correct that EPA indicates that for theoretical considerations, larger non-residential
buildings constructed of thick slabs will have low AFss as compared to residential
buildings. Based on this, EPA contends that where appropriate, building-specific data,
information, and analysis may be considered when evaluating VI into larger non-
residential building.

However, until such time that EPA compiles building-specific data and information, VI
evaluation, regardless of building type must adhere to the current recommended standards
and AFss.

7. Section 5.0 Fate and Transport of Cis-1,2-Dichloroethene
The Section provides arguments suggesting that the source of PCE and hence daughter
products is due to a plume originating from off-site and upgradient of the site and that
DCE detected near the subject property building did not originate from under the
building.

Regardless of the source of PCE and other breakdown products, the Responsible Party
(RP) is obligated to ensure a safe environmental site conditions for protection of human
health and the environment. As indicated by the results of the several screening
evaluations based of detected contaminant levels in soil, groundwater and indoor air, the
Edison site poses potential risk to human health and the environment. As stated several
times, a conclusion that VI is complete at a site must be based on MLE. Absent that, the
Division recommends an SMP and an EC to mitigate risks at the site based the limited
lines of evidence.

8. Section 6.0 Conclusions
Investigations being conducted by US EPA and DEQ DERR of the Edison Plume north
and east of the subject property are yet to be completed. However, data from the Limited
Phase II Report indicate environmental problems at the Edison Site.

9. Section 6.2 West Parcel No. 015 (Building, West Parking)
Groundwater
Please see comment number #15 below and Division Table 2. VISL calculations using
groundwater contaminant data suggest a VI CR of 3.4x10-6. This level is risk is consistent
with the risk management range and requires an SMP and an EC to mitigate risk at the
Building West Parcel.

10. Section 6.2 West Parcel No. 015 (Building, West Parking)
Subsurface Vapors
Please see comment #15 below and Division Table 3. PCE may be below the Industrial
Sub Slab Soil Gas concentration of 1570 ug/m3. However, PCE in addition to other
contaminants were detected in soil gas, notably benzene and ethylbenzene. The VISL
calculator indicates that the presence of multiple chemicals poses a CR of 1.4x10-6. In the
absence of MLE to conclude that the VI pathway is complete at the site, the Division will
recommend an SMP and an EC for the protection of human health and the environment.

As pointed out by the Division, OSHA standards are not appropriate or recognized at a
RCRA site for decision making. All conclusions and positions stated by Edison and based
on OSHA standards will be disregarded as having no foundation.

Potential VI impact assessment from detected groundwater contaminants, notably
benzene and vinyl chloride (Edison Table 2 SB-7(MW-5)), using the VISL calculator
suggests a CR of 3.4x10-6, (see Division Table 2). The Division will disregard all Edison
conclusions based on OSHA standards cited for benzene. As indicated in Edison Table 2,
vinyl chloride was detected and was used in the VISL calculation.

As the Edison Site is zoned for commercial/industrial use, the Division will disregard the
VISL modeling results for PCE using the residential land use exposure scenario. As
noted in Comments numbers 3 and 4 above and results of evaluations of data provided,
an SMP and an EC are appropriate at the site for the protection of human health and the
environment.

11. Section 7.2 West Parcel No 15 (Building, West Parking)
While it is accepted that the upper groundwater aquifer in the Salt Lake Valley will not
likely be used as potable water and that residential water use will rely on the supply of
municipal treated water, groundwater monitoring will still be required by the Division as
part of the conditions in the SMP. Detected VOCs in groundwater have been shown to
impact the VI pathway at the site.

The objective of the groundwater monitoring will be to assess trends in VOC
concentrations over time. Edison may request cessation of future groundwater monitoring
if groundwater data indicates detected VOC concentrations are all below levels that no
longer pose a VI threat at the site. Bear in mind that since multiple VOCs were detected
in groundwater, the cumulative effects of all detected contaminants will have to be
considered when requesting monitoring cessation.

The Division concurs with Edison that no additional investigation at the site will be
required at this time, but an SMP and an EC will be required at the site for protection of
human health and the environment.

12. Section 7.3 East Parcel No 14 (East Parking Lot)
Please see comment #2 above. While it is accepted that the upper groundwater aquifer in
the Salt Lake Valley will not likely be used as potable water and that residential water use
will rely on the supply of municipal treated water, groundwater monitoring will be
required to assess the benzene concentrations that were detected during initial sampling.
If, after additional groundwater monitoring, benzene is not detected above MCLs,
cessation of groundwater monitoring at this parcel may be requested. Without additional
sampling, there is not enough data to determine the condition of the upper aquifer at this
parcel, and therefore, groundwater access and use will need to be restricted in the form of
a SMP and EC.

13. Table 1.
Please review the contents of the Table for accuracy and provide the necessary inputs for
the missing values for completeness. The residential and industrial/commercial RSL data
are mixed up. For example, toluene industrial soil RSL screening value is 4.7x10-4
mg/kg, ethylbenzene industrial soil RSL is 25mk/kg, etc.

14. Table 1.
Vinyl chloride (VC) MCL based SSL for protection of groundwater is 6.9x10-4, DAF20 =
6.9x10-4 x 20 = 0.014 my/kg. The laboratory reporting limits (RLs) are not low enough to
confidently assesses VC impacts to groundwater. VC RL is shown to be ,0.03 for SB-1 to
SB-4. RLs for SB-8(MW-1) to SB-12(MW-5) have much lower RLs to adequately
assess contaminant migration to groundwater.

This suggests that the soil to groundwater migration pathway for the site has not been
adequately addressed. Please provide a discussion for this deficiency.

15. Table 2. Summary of Analytical Results in Groundwater
Detected VOCs in groundwater suggest that there is the potential for vapor intrusion
pathway. Based on initial VI assessment using the maximum concentration of
contaminants as the exposure point concentration (EPC) as input into the VISL
calculator, the potential indoor cancer risk posed by benzene and vinyl chloride is
3.3x10-6, (see Division Table 2). If the Edison is not able to perform a more detailed VI
assessment using multiple lines of evidence (MLE), a site management plan (SMP) and
an environmental covenant (EC) for the site is recommended for the protection of human
health and the environment.

Output generated 20APR2022:14:27:50
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Form-input
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATw (averaging time - composite worker)365 365
EDw (exposure duration - composite worker) yr 25 25
EFw (exposure frequency - composite worker) day/yr 250 250
ETw (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 20APR2022:14:27:50
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 1.57E+00 CA 5.24E+01 6.93E+00
Dichloroethylene, cis-1,2-156-59-2 Yes No No Inhal. Tox. Info No Inhal. Tox. Info ---
Vinyl Chloride 75-01-4 Yes Yes Yes Yes 2.79E+00 CA 9.29E+01 2.45E+00
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
No (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 1.57E+00 1.31E+02
1.04E+09 1.07E+09 25 3.00 CRC --No --
No (2)1.00E+10 1.00E+10 25 3.60 CRC 4.40E-06 I 8.00E-02 A Mut 2.79E+00 3.50E+02
Output generated 20APR2022:14:27:50
Commercial Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Groundwater
Concentration
Cgw \
(µg/L)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
Benzene 71-43-2 10.7 2.43E+00 1.98E-01 1.54E-06
Dichloroethylene, cis-1,2-156-59-2 1070 ---
Vinyl Chloride 75-01-4 4.4 5.00E+00 4.08E-01 1.79E-06
*Sum ---3.34E-06
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
5.54E-04 1.85E-02 7.80E-06 I 3.00E-02 IRIS 25 No
----25 No
1.14E-03 1.43E-02 4.40E-06 I 8.00E-02 ATSDR 25 Mut
-3.27E-02 ---
Output generated 20APR2022:14:27:50
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Dichloroethylene, cis-1,2-156-59-2 Yes No 96.94 PHYSPROP 2.00E+02 PHYSPROP 6.41E+03 PHYSPROP 70
Vinyl Chloride 75-01-4 Yes Yes 62.50 PHYSPROP 2.98E+03 EPI 8.80E+03 PHYSPROP 2
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
4.08E-03 1.67E-01 PHYSPROP 1.67E-01 333.25 PHYSPROP 5.36E+02 CRC 7217.97 CRC 3.00 CRC
2.78E-02 1.14E+00 PHYSPROP 1.14E+00 259.85 PHYSPROP 4.25E+02 CRC 4971.32 CRC 3.60 CRC
Output generated 20APR2022:14:27:50
Chemical Properties 5
Inhalation Unit Risk Toxicity Metadata
Chemical CASNUM
Inhalation
Unit Risk
(µg/m 3)-1
Toxicity
Source
EPA Cancer
Classification
Inhalation Unit Risk Tumor
Type
Inhalation
Unit Risk
Target
Organ
Inhalation
Unit Risk
Species
Inhalation Unit Risk
Method
Inhalation
Unit Risk
Route
Inhalation
Unit Risk
Treatment
Duration
Benzene 71-43-2 7.8E-6 IRIS Known/likely
human
carcinogen
Leukemia Blood Human Low-dose linearity
utilizing maximum
likelihood estimates
NA NA
Dichloroethylene,
cis-1,2-
156-59-2 -
Vinyl Chloride 75-01-4 4.4E-6 IRIS Known/likely
human
carcinogen
Liver angiosarcomas,
angiomas, hepatomas, and
neoplastic nodules
Liver Rat LED 10/ linear method NA NA
Inhalation Unit Risk Study Reference
Inhalation
Unit Risk
Notes
Rinsky et al. 1981, 1987, Paustenbach et al.
1993, Crump and Allen 1984, Crump 1992,
1994, U.S. EPA 1998
NA
Maltoni et al. 1981, Maltoni et al. 1984 NA
Output generated 20APR2022:14:27:50
Chemical Properties 6
Inhalation Chronic Toxicity Metadata
Chemical CASNUM
Chronic
Inhalation
Reference
Concentration
(mg/m 3)
Toxicity
Source
Inhalation
Chronic
Reference
Concentration
Basis
Inhalation
Chronic
Reference
Concentration
Confidence
Level
Inhalation Chronic
Reference Concentration
Critical Effect
Inhalation
Chronic
Reference
Concentration
Target Organ
Benzene 71-43-2 0.03 IRIS BMCL: 8.2 mg/m3 Medium Decreased lymphocyte count Blood
Dichloroethylene, cis-1,2-156-59-2 -
Vinyl Chloride 75-01-4 0.08 ATSDR LOAEL: 10 ppm NA Centrilobular hypertrophy Hepatic
Inhalation
Chronic
Reference
Concentration
Modifying
Factor
Inhalation
Chronic
Reference
Concentration
Uncertainty
Factor
Inhalation
Chronic
Reference
Concentration
Species
Inhalation
Chronic
Reference
Concentration
Route
Inhalation
Chronic
Reference
Concentration
Study
Duration
Inhalation Chronic
Reference
Concentration
Study Reference
Inhalation
Chronic
Reference
Concentration
Notes
1 300 Human NA NA Rothman et al. 1996 NA
NA 30 Rat Hepatic 19 weeks Thornton et al. 2002 NA
Output generated 20APR2022:12:45:33
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Form-input
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATw (averaging time - composite worker)365 365
EDw (exposure duration - composite worker) yr 25 25
EFw (exposure frequency - composite worker) day/yr 250 250
ETw (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 20APR2022:12:45:33
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 1.57E+00 CA 5.24E+01 6.93E+00
Ethylbenzene 100-41-4 Yes Yes Yes Yes 4.91E+00 CA 1.64E+02 1.52E+01
Tetrachloroethylene 127-18-4 Yes Yes Yes Yes 4.72E+01 CA 1.57E+03 6.52E+01
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
No (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 1.57E+00 1.31E+02
Yes (700)5.48E+07 5.44E+07 25 0.80 CRC 2.50E-06 C 1.00E+00 I No 4.91E+00 4.38E+03
No (5)1.65E+08 1.49E+08 25 -2.60E-07 I 4.00E-02 I No 4.72E+01 1.75E+02
Output generated 20APR2022:12:45:33
Commercial Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Sub-Slab and
Exterior Soil
Gas
Concentration
Csg \
(µg/m 3)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Benzene 71-43-2 26 7.80E-01 6.36E-02 4.96E-07 1.78E-04 5.94E-03 7.80E-06 I
Ethylbenzene 100-41-4 44 1.32E+00 1.08E-01 2.69E-07 3.01E-04 3.01E-04 2.50E-06 C
Tetrachloroethylene 127-18-4 1000 3.00E+01 2.45E+00 6.36E-07 6.85E-03 1.71E-01 2.60E-07 I
*Sum ---1.40E-06 -1.77E-01 -
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
3.00E-02 IRIS 25 No
1.00E+00 IRIS 25 No
4.00E-02 IRIS 25 No
--
Output generated 20APR2022:12:45:33
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Ethylbenzene 100-41-4 Yes Yes 106.17 PHYSPROP 9.60E+00 PHYSPROP 1.69E+02 PHYSPROP 700
Tetrachloroethylene 127-18-4 Yes Yes 165.83 PHYSPROP 1.85E+01 PHYSPROP 2.06E+02 PHYSPROP 5
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
7.88E-03 3.22E-01 PHYSPROP 3.22E-01 409.25 PHYSPROP 6.17E+02 CRC 8501.43 CRC 0.80 CRC
1.77E-02 7.24E-01 PHYSPROP 7.24E-01 394.45 PHYSPROP 6.20E+02 YAWS 8288.72 CRC -
Output generated 20APR2022:12:45:33
Chemical Properties 5
Inhalation Unit Risk Toxicity Metadata
Chemical CASNUM
Inhalation
Unit Risk
(µg/m 3)-1
Toxicity
Source
EPA Cancer
Classification
Inhalation
Unit Risk
Tumor Type
Inhalation
Unit Risk
Target
Organ
Inhalation
Unit Risk
Species Inhalation Unit Risk Method
Benzene 71-43-2 7.8E-6 IRIS Known/likely human
carcinogen
Leukemia Blood Human Low-dose linearity utilizing maximum likelihood
estimates
Ethylbenzene 100-41-4 2.5E-6 CALEPA D NA NA NA NA
Tetrachloroethylene 127-18-4 2.6E-7 IRIS likely to be
carcinogenic in
humans by all
routes of exposure
Hepatocellular
adenomas or
carcinomas
liver mouse Multistage model with linear extrapolation from the point
of departure (BMCL10), followed by extrapolation to
humans using the PBPK model of Chiu and Ginsberg
(2011)
Inhalation
Unit Risk
Route
Inhalation
Unit Risk
Treatment
Duration
Inhalation Unit Risk Study
Reference
Inhalation
Unit Risk
Notes
NA NA Rinsky et al. 1981, 1987,
Paustenbach et al. 1993, Crump
and Allen 1984, Crump 1992, 1994,
U.S. EPA 1998
NA
NA NA NA NA
NA NA JISA 1993 NA
Output generated 20APR2022:12:45:33
Chemical Properties 6
Inhalation Chronic Toxicity Metadata
Chemical CASNUM
Chronic
Inhalation
Reference
Concentration
(mg/m 3)
Toxicity
Source
Inhalation
Chronic
Reference
Concentration
Basis
Inhalation
Chronic
Reference
Concentration
Confidence
Level
Inhalation Chronic
Reference Concentration
Critical Effect
Inhalation
Chronic
Reference
Concentration
Target Organ
Inhalation
Chronic
Reference
Concentration
Modifying
Factor
Inhalation
Chronic
Reference
Concentration
Uncertainty
Factor
Benzene 71-43-2 0.03 IRIS BMCL: 8.2 mg/m3 Medium Decreased lymphocyte
count
Blood 1 300
Ethylbenzene 100-41-4 1 IRIS NOAEL (HEC):
434 mg/m3
Low Developmental toxicity Developmental 1 300
Tetrachloroethylene 127-18-4 0.04 IRIS LOAEL3: Multiple medium Neurotoxicity (color vision)
(reaction time, cognitive
effects)
Nervous
System
1 1000
Inhalation
Chronic
Reference
Concentration
Species
Inhalation
Chronic
Reference
Concentration
Route
Inhalation
Chronic
Reference
Concentration
Study
Duration
Inhalation Chronic
Reference
Concentration Study
Reference
Inhalation
Chronic
Reference
Concentration
Notes
Human NA NA Rothman et al. 1996 NA
Rabbit and Rat NA NA Andrew et al. 1981,
Hardin et al. 1981
NA
human NA NA Echeverria et al.
(1995) and Cavalleri et
al. (1994)
NA
Output generated 20APR2022:13:29:12
Resident Air Inputs 1
Variable
Resident
Air
Default
Value
Form-input
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
EDres (exposure duration) years 26 26
ED0-2 (mutagenic exposure duration first phase) years 2 2
ED2-6 (mutagenic exposure duration second phase) years 4 4
ED6-16 (mutagenic exposure duration third phase) years 10 10
ED16-26 (mutagenic exposure duration fourth phase) years 10 10
EFres (exposure frequency) days/year 350 350
EF0-2 (mutagenic exposure frequency first phase) days/year 350 350
EF2-6 (mutagenic exposure frequency second phase) days/year 350 350
EF6-16 (mutagenic exposure frequency third phase) days/year 350 350
EF16-26 (mutagenic exposure frequency fourth phase) days/year 350 350
ETres (exposure time) hours/day 24 24
ET0-2 (mutagenic exposure time first phase) hours/day 24 24
ET2-6 (mutagenic exposure time second phase) hours/day 24 24
ET6-16 (mutagenic exposure time third phase) hours/day 24 24
ET16-26 (mutagenic exposure time fourth phase) hours/day 24 24
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) years 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 20APR2022:13:29:12
Resident Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 3.60E-01 CA 1.20E+01 1.59E+00
Butadiene, 1,3-106-99-0 Yes Yes Yes Yes 9.36E-02 CA 3.12E+00 3.11E-02
Chloroform 67-66-3 Yes Yes Yes Yes 1.22E-01 CA 4.07E+00 8.14E-01
Ethylbenzene 100-41-4 Yes Yes Yes Yes 1.12E+00 CA 3.74E+01 3.49E+00
Tetrachloroethylene 127-18-4 Yes Yes Yes Yes 1.08E+01 CA 3.60E+02 1.49E+01
Trimethylbenzene, 1,2,4-95-63-6 Yes Yes Yes Yes 6.26E+01 NC 2.09E+03 2.48E+02
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
Yes (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 3.60E-01 3.13E+01
--6.13E+09 2.21E+09 25 2.00 CRC 3.00E-05 I 2.00E-03 I No 9.36E-02 2.09E+00
Yes (80)1.26E+09 1.19E+09 25 -2.30E-05 I 9.77E-02 A No 1.22E-01 1.02E+02
Yes (700)5.48E+07 5.44E+07 25 0.80 CRC 2.50E-06 C 1.00E+00 I No 1.12E+00 1.04E+03
No (5)1.65E+08 1.49E+08 25 -2.60E-07 I 4.00E-02 I No 1.08E+01 4.17E+01
--1.36E+07 1.44E+07 25 0.90 CRC -6.00E-02 I No -6.26E+01
Output generated 20APR2022:13:29:12
Resident Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Sub-Slab and
Exterior Soil
Gas
Concentration
Csg \
(µg/m 3)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Benzene 71-43-2 3.6 1.08E-01 3.85E-02 3.00E-07 1.04E-04 3.45E-03 7.80E-06 I
Butadiene, 1,3-106-99-0 0.41 1.23E-02 4.38E-03 1.31E-07 1.18E-05 5.90E-03 3.00E-05 I
Chloroform 67-66-3 1.1 3.30E-02 1.18E-02 2.70E-07 3.16E-05 3.24E-04 2.30E-05 I
Ethylbenzene 100-41-4 3.7 1.11E-01 3.95E-02 9.88E-08 1.06E-04 1.06E-04 2.50E-06 C
Tetrachloroethylene 127-18-4 1000 3.00E+01 1.07E+01 2.78E-06 2.88E-02 7.19E-01 2.60E-07 I
Trimethylbenzene, 1,2,4-95-63-6 7.3 2.19E-01 7.80E-02 -2.10E-04 3.50E-03 -
*Sum ---3.58E-06 -7.32E-01 -
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
3.00E-02 IRIS 25 No
2.00E-03 IRIS 25 No
9.77E-02 ATSDR 25 No
1.00E+00 IRIS 25 No
4.00E-02 IRIS 25 No
6.00E-02 IRIS 25 No
--
Output generated 20APR2022:13:29:12
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Butadiene, 1,3-106-99-0 Yes Yes 54.09 PHYSPROP 2.11E+03 PHYSPROP 7.35E+02 PHYSPROP -
Chloroform 67-66-3 Yes Yes 119.38 PHYSPROP 1.97E+02 PHYSPROP 7.95E+03 PHYSPROP 80
Ethylbenzene 100-41-4 Yes Yes 106.17 PHYSPROP 9.60E+00 PHYSPROP 1.69E+02 PHYSPROP 700
Tetrachloroethylene 127-18-4 Yes Yes 165.83 PHYSPROP 1.85E+01 PHYSPROP 2.06E+02 PHYSPROP 5
Trimethylbenzene, 1,2,4-95-63-6 Yes Yes 120.20 PHYSPROP 2.10E+00 PHYSPROP 5.70E+01 PHYSPROP -
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
7.36E-02 3.01E+00 EPI 3.01E+00 268.75 PHYSPROP 4.25E+02 CRC 5370.46 CRC 2.00 CRC
3.67E-03 1.50E-01 PHYSPROP 1.50E-01 334.25 PHYSPROP 5.36E+02 CRC 6988.53 CRC -
7.88E-03 3.22E-01 PHYSPROP 3.22E-01 409.25 PHYSPROP 6.17E+02 CRC 8501.43 CRC 0.80 CRC
1.77E-02 7.24E-01 PHYSPROP 7.24E-01 394.45 PHYSPROP 6.20E+02 YAWS 8288.72 CRC -
6.16E-03 2.52E-01 PHYSPROP 2.52E-01 442.45 PHYSPROP 6.49E+02 CRC 9368.80 TOXNET 0.90 CRC
Output generated 20APR2022:13:29:12
Chemical Properties 5
Inhalation Unit Risk Toxicity Metadata
Chemical CASNUM
Inhalation
Unit Risk
(µg/m 3)-1
Toxicity
Source
EPA Cancer
Classification
Inhalation Unit
Risk Tumor Type
Inhalation
Unit Risk
Target
Organ
Inhalation
Unit Risk
Species Inhalation Unit Risk Method
Benzene 71-43-2 7.8E-6 IRIS Known/likely human
carcinogen
Leukemia Blood Human Low-dose linearity utilizing maximum likelihood
estimates
Butadiene, 1,3-106-99-0 0.00003 IRIS Carcinogenic to
humans
Leukemia Blood Human Linear extrapolation from LEC01 (0.254 ppm);
LEC01 derived from linear relative rate model
(RR = 1 + (B)(x)) using lifetable analysis with
leukemia incidence data; an adjustment factor of
2 was applied.
Chloroform 67-66-3 0.000023 IRIS likely to be
carcinogenic to
humans
Hepatocellular
carcinoma
Liver Mouse Linearized multistage procedure, extra risk
Ethylbenzene 100-41-4 2.5E-6 CALEPA D NA NA NA NA
Tetrachloroethylene 127-18-4 2.6E-7 IRIS likely to be
carcinogenic in
humans by all routes
of exposure
Hepatocellular
adenomas or
carcinomas
liver mouse Multistage model with linear extrapolation from
the point of departure (BMCL10), followed by
extrapolation to humans using the PBPK model
of Chiu and Ginsberg (2011)
Trimethylbenzene,
1,2,4-
95-63-6 -
Output generated 20APR2022:13:29:12
Chemical Properties 6
Inhalation Unit Risk Toxicity Metadata
Inhalation
Unit Risk
Route
Inhalation
Unit Risk
Treatment
Duration
Inhalation Unit Risk Study
Reference
Inhalation
Unit Risk
Notes
NA NA Rinsky et al. 1981, 1987,
Paustenbach et al. 1993,
Crump and Allen 1984, Crump
1992, 1994, U.S. EPA 1998
NA
NA NA Health Canada 1998, U.S.
EPA 2002
NA
NA NA NCI 1976 NA
NA NA NA NA
NA NA JISA 1993 NA
Output generated 20APR2022:13:29:12
Chemical Properties 7
Inhalation Chronic Toxicity Metadata
Chemical CASNUM
Chronic
Inhalation
Reference
Concentration
(mg/m 3)
Toxicity
Source
Inhalation
Chronic
Reference
Concentration
Basis
Inhalation
Chronic
Reference
Concentration
Confidence
Level
Inhalation Chronic
Reference
Concentration Critical
Effect
Inhalation
Chronic
Reference
Concentration
Target Organ
Inhalation
Chronic
Reference
Concentration
Modifying
Factor
Inhalation
Chronic
Reference
Concentration
Uncertainty
Factor
Benzene 71-43-2 0.03 IRIS BMCL: 8.2 mg/m3 Medium Decreased lymphocyte
count
Blood 1 300
Butadiene, 1,3-106-99-0 0.002 IRIS BMCL 10 (HEC):
1.98 mg/m3
Medium Atrophy Ovaries 1 1000
Chloroform 67-66-3 0.0976524 ATSDR LOAEL: 2 ppm NA Hepatomegaly Hepatic NA 100
Ethylbenzene 100-41-4 1 IRIS NOAEL (HEC):
434 mg/m3
Low Developmental toxicity Developmental 1 300
Tetrachloroethylene 127-18-4 0.04 IRIS LOAEL3: Multiple medium Neurotoxicity (color
vision) (reaction time,
cognitive effects)
Nervous
System
1 1000
Trimethylbenzene,
1,2,4-
95-63-6 0.06 IRIS BMCL1SD (HEC):
18.15 mg/m3
Low to medium Decreased pain
sensitivity
Nervous
system
1 300
Inhalation
Chronic
Reference
Concentration
Species
Inhalation
Chronic
Reference
Concentration
Route
Inhalation
Chronic
Reference
Concentration
Study
Duration
Inhalation Chronic
Reference
Concentration Study
Reference
Inhalation
Chronic
Reference
Concentration
Notes
Human NA NA Rothman et al. 1996 NA
Mouse NA NA NTP 1993 NA
Human Hepatic 1-4 years Bomski et al. 1967 NA
Rabbit and Rat NA NA Andrew et al. 1981,
Hardin et al. 1981
NA
human NA NA Echeverria et al.
(1995) and Cavalleri
et al. (1994)
NA
Rat NA NA Korsak and Rydzynski
1996
NA
Output generated 20APR2022:16:37:55
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Form-input
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATw (averaging time - composite worker)365 365
EDw (exposure duration - composite worker) yr 25 25
EFw (exposure frequency - composite worker) day/yr 250 250
ETw (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 20APR2022:16:37:55
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 1.57E+00 CA 5.24E+01 6.93E+00
Ethylbenzene 100-41-4 Yes Yes Yes Yes 4.91E+00 CA 1.64E+02 1.52E+01
Heptane, N-142-82-5 Yes Yes Yes Yes 1.75E+03 NC 5.84E+04 2.14E+01
Hexane, Commercial NA Yes Yes Yes Yes 6.13E+01 CA 2.04E+03 8.33E-01
Tetrachloroethylene 127-18-4 Yes Yes Yes Yes 4.72E+01 CA 1.57E+03 6.52E+01
Xylenes 1330-20-7 Yes Yes Yes Yes 4.38E+02 NC 1.46E+04 1.62E+03
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
No (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 1.57E+00 1.31E+02
Yes (700)5.48E+07 5.44E+07 25 0.80 CRC 2.50E-06 C 1.00E+00 I No 4.91E+00 4.38E+03
--2.48E+08 2.78E+08 25 1.05 CRC -4.00E-01 P No -1.75E+03
--7.01E+08 6.99E+08 25 1.10 CRC 2.00E-07 X 6.00E-01 P No 6.13E+01 2.63E+03
No (5)1.65E+08 1.49E+08 25 -2.60E-07 I 4.00E-02 I No 4.72E+01 1.75E+02
Yes (10000)4.56E+07 2.87E+07 25 --1.00E-01 I No -4.38E+02
Output generated 20APR2022:16:37:55
Commercial Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
Benzene 71-43-2 2.60E+01 2.12E+00 1.65E-05 5.94E-03 1.98E-01 7.80E-06 I 3.00E-02 IRIS 25 No
Ethylbenzene 100-41-4 4.40E+01 3.59E+00 8.97E-06 1.00E-02 1.00E-02 2.50E-06 C 1.00E+00 IRIS 25 No
Heptane, N-142-82-5 4.40E+01 3.59E+00 -1.00E-02 2.51E-02 -4.00E-01 PPRTV 25 No
Hexane, Commercial NA 7.10E+01 5.79E+00 1.16E-06 1.62E-02 2.70E-02 2.00E-07 X 6.00E-01 PPRTV 25 No
Tetrachloroethylene 127-18-4 2.40E+00 1.96E-01 5.09E-08 5.48E-04 1.37E-02 2.60E-07 I 4.00E-02 IRIS 25 No
Xylenes 1330-20-7 1.64E+02 1.34E+01 -3.74E-02 3.74E-01 -1.00E-01 IRIS 25 No
*Sum --2.67E-05 -6.48E-01 ---
Output generated 20APR2022:16:37:55
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Ethylbenzene 100-41-4 Yes Yes 106.17 PHYSPROP 9.60E+00 PHYSPROP 1.69E+02 PHYSPROP 700
Heptane, N-142-82-5 Yes Yes 100.21 PHYSPROP 4.60E+01 PHYSPROP 3.40E+00 PHYSPROP -
Hexane, Commercial NA Yes Yes 86.18 PHYSPROP 1.51E+02 PHYSPROP 9.50E+00 PHYSPROP -
Tetrachloroethylene 127-18-4 Yes Yes 165.83 PHYSPROP 1.85E+01 PHYSPROP 2.06E+02 PHYSPROP 5
Xylenes 1330-20-7 Yes Yes 106.17 PHYSPROP 7.99E+00 PHYSPROP 1.06E+02 PHYSPROP 10000
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
7.88E-03 3.22E-01 PHYSPROP 3.22E-01 409.25 PHYSPROP 6.17E+02 CRC 8501.43 CRC 0.80 CRC
2.00E+00 8.18E+01 EPI 8.18E+01 371.65 PHYSPROP 5.40E+02 CRC 7593.21 CRC 1.05 CRC
1.80E+00 7.36E+01 EPI 7.36E+01 341.85 PHYSPROP 5.08E+02 CRC 6895.31 CRC 1.10 CRC
1.77E-02 7.24E-01 PHYSPROP 7.24E-01 394.45 PHYSPROP 6.20E+02 YAWS 8288.72 CRC -
6.63E-03 2.71E-01 PHYSPROP 2.71E-01 411.65 PHYSPROP 6.20E+02 YAWS 8523.00 Weast -
Output generated 20APR2022:16:37:55
Chemical Properties 5
Inhalation Unit Risk Toxicity Metadata
Chemical CASNUM
Inhalation
Unit Risk
(µg/m 3)-1
Toxicity
Source
EPA Cancer
Classification
Inhalation
Unit Risk
Tumor Type
Inhalation
Unit Risk
Target
Organ
Inhalation
Unit Risk
Species Inhalation Unit Risk Method
Benzene 71-43-2 7.8E-6 IRIS Known/likely
human carcinogen
Leukemia Blood Human Low-dose linearity utilizing maximum likelihood
estimates
Ethylbenzene 100-41-4 2.5E-6 CALEPA D NA NA NA NA
Heptane, N-142-82-5 -
Hexane,
Commercial
E5241997 2E-7 SCREEN SU Adenomas and
carcinomas
Pituitary
Gland
Mice NA
Tetrachloroethylene 127-18-4 2.6E-7 IRIS likely to be
carcinogenic in
humans by all
routes of exposure
Hepatocellular
adenomas or
carcinomas
liver mouse Multistage model with linear extrapolation from the
point of departure (BMCL10), followed by
extrapolation to humans using the PBPK model of
Chiu and Ginsberg (2011)
Xylenes 1330-20-7 -
Inhalation
Unit Risk
Route
Inhalation
Unit Risk
Treatment
Duration
Inhalation Unit Risk Study
Reference
Inhalation
Unit Risk
Notes
NA NA Rinsky et al. 1981, 1987,
Paustenbach et al. 1993, Crump
and Allen 1984, Crump 1992, 1994,
U.S. EPA 1998
NA
NA NA NA NA
Inhalation 2 years Biodynamics 1993b, Daughtrey et
al. 1999
NA
NA NA JISA 1993 NA
Output generated 20APR2022:16:37:55
Chemical Properties 6
Inhalation Chronic Toxicity Metadata
Chemical CASNUM
Chronic
Inhalation
Reference
Concentration
(mg/m 3)
Toxicity
Source
Inhalation
Chronic
Reference
Concentration
Basis
Inhalation
Chronic
Reference
Concentration
Confidence
Level
Inhalation Chronic
Reference
Concentration Critical
Effect
Inhalation
Chronic
Reference
Concentration
Target Organ
Inhalation
Chronic
Reference
Concentration
Modifying
Factor
Inhalation
Chronic
Reference
Concentration
Uncertainty
Factor
Benzene 71-43-2 0.03 IRIS BMCL: 8.2 mg/m3 Medium Decreased lymphocyte
count
Blood 1 300
Ethylbenzene 100-41-4 1 IRIS NOAEL (HEC):
434 mg/m3
Low Developmental toxicity Developmental 1 300
Heptane, N-142-82-5 0.4 PPRTV BDCL-1SD
(HEC): 1170
mg/m3
Low Loss of hearing sensitivity Ears NA 3000
Hexane,
Commercial
E5241997 0.6 PPRTV BMCL: 17.59
mg/m3
Medium Epithelial cell hyperplasia Nasal NA 30
Tetrachloroethylene 127-18-4 0.04 IRIS LOAEL3: Multiple medium Neurotoxicity (color
vision) (reaction time,
cognitive effects)
Nervous
System
1 1000
Xylenes 1330-20-7 0.1 IRIS NOAEL (HEC): 39
mg/m3
Medium Impaired motor
coordination (decreased
rotarod performance)
Nervous 1 300
Output generated 20APR2022:16:37:55
Chemical Properties 7
Inhalation Chronic Toxicity Metadata
Inhalation
Chronic
Reference
Concentration
Species
Inhalation
Chronic
Reference
Concentration
Route
Inhalation
Chronic
Reference
Concentration
Study Duration
Inhalation Chronic
Reference
Concentration
Study Reference
Inhalation Chronic
Reference
Concentration Notes
Human NA NA Rothman et al. 1996 NA
Rabbit and Rat NA NA Andrew et al. 1981,
Hardin et al. 1981
NA
Rat Inhalation 6 hr/d, 28 days Simonsen and Lund
1995
NA
Rat Inhalation 6 hr/d, 5 d/wk, 2
years
Biodynamics 1993a,
Daughtrey et al. 1999
BMD modeling was
performed followed by
conversion to HECs.
human NA NA Echeverria et al.
(1995) and Cavalleri
et al. (1994)
NA
Rat NA NA Korsak et al. 1994 NA
Edison Auto Phase II Report and Risk Assessment Comments – October 12, 2022

The following comments are based on a partial draft revised report, dated July 31, 2022, which
includes the report narrative, Tables 1, 2, & 3, and a list of selected compounds for the composite
worker. Tables 4 and 5 and the analytical data have not been included. Therefore, the following
comments may not cover the report in its entirety.

1. Throughout the report, the statement is made that PCE and daughter products originated
from sources up gradient of the subject property. For the Division to render a final
decision on the status of the property, soil vapors detected at the subject property that
may be associated with groundwater PCE originating from offsite must be addressed.
Exposure/potential exposure of site workers to PCE must be addressed regardless of the
origin.

2. Section 3.6 Exposure and Risk Standards

Paragraph three of this section indicates sub-slab vapor results were compared to
industrial RSL target levels for soil gas. Please note that the RSL table does not include
any target levels for soil gas. If this was a mistake, please clarify and revise the text.

The last sentence also indicates sub-slab vapor results were compared to residential RSL
VISL (Table 5). Please revise the text and note that direct sub-slab soil gas comparison
to indoor air is not appropriate or meaningful since constituents will have to undergo
some attenuation before reaching the indoor space. Also please clarify what you mean by
“residential VISL RSL”.

3. Section 4.1 Soil Analytical Results

The narrative indicates trichloroethene (TCE) detected in soil was 0.004 mg/kg which
was below the US EPA RSL residential level of 8.1 mg/kg. Please note that the TCE
residential RSL is 0.94 mg/kg. Please revise the text accordingly.

4. Section 4.1 Soil Analytical Results
Vinyl Chloride

The second paragraph indicates that the site-specific RSL for the Salt Lake Region for
vinyl chloride modeled at 2.2 meters depth below ground surface is 4.14 mg/kg (Table 1)
as compared to the default RSL value of 1.68 mg/kg under the industrial exposure
scenario.

Please note that the two standards are not comparable. The industrial/commercial RSL
cited (1.68 mg/kg) relates to the Composite Worker exposure scenario and accounts for
direct exposure to soil (ingestion, dermal, inhalation). The site-specific RSL or soil
screening level (SSL) calculated value of 4.14 mg/kg is consistent with SSL for the
outdoor inhalation of fugitive dusts and volatiles. This is evaluated in conjunction with
Particulate Emission Factor (PEF) and Volatilization Factor (VF) equations and site-
specific dispersion factors (Q/C) for the outdoor/landscaper receptor that reflects the site
location/climate and site size.

The relationship made here between the Site-Specific SSL and geological conditions and
migration of vinyl chloride (VC) in the subsurface and protection of groundwater is not
accurate or of any relevance.

Evaluation of potential migration of soil VC to groundwater should be based on an
appropriate model. Please revise the text by addressing the cited RSLs and SSLs in the
appropriate context and relevance.

5. 4.2 Groundwater Elevations and Analytical Results

The groundwater benzene concentrations detected above MCL (MW-3 and MW-4)
during the February 2020 sampling event remain a concern. A single groundwater
sampling event (July 2021) is not sufficient to demonstrate that benzene is no longer a
concern. As previously discussed, seasonal fluctuations in the water table may contribute
to fluctuations in benzene concentrations observed in groundwater. While the March
2022 groundwater elevation measurements may contribute some information to this
issue, additional groundwater sampling is required to provide actual data regarding the
groundwater benzene concentrations at this site. Groundwater elevation measurements
cannot serve as a replacement for the required data. As previously requested, please
propose additional groundwater sampling to address the benzene concern

6. Section 4.3 Vapor Analytical Results

The narrative states, “in order to determine which constituents of concern required
further evaluation, we compared soil gas concentrations to the target RSL industrial
indoor air concentration exposure scenario.”

Please note that a direct comparison of soil gas concentrations to the RSL industrial
indoor air concentration exposure scenario is not a valid comparison. Soil gas entering
indoor space must go through attenuation processes. Please see comment number #2
above.

A valid comparison to soil gas data would be the VISL target sub-slab gas levels. In
situations where multiple chemicals are detected, all constituents must be considered in
vapor intrusion (VI) assessments and specifically considering additive effects.
Constituents cannot be eliminated using the approach indicated in the report.

Please reassess the soil gas data by following acceptable methodology and
recommendations in the EPA VI guidance document of June 2015. Note that soil gas
constituents cannot be eliminated based on comparison to indoor air RSLs.

The use of the acronyms RSL, VISL, and terminologies like soil-gas, indoor air, exposure
pathways, complete and incomplete is not clear and creates confusion. In many cases the
use of these acronyms and terminologies leads to misinterpretation or misrepresentation
of data or are not used in the appropriate context. The Division recommends the use of
these acronyms and terminologies to be accurate in the context that reflects their exact
meaning for making the right inferences.

7. 4.3 Vapor Analytical Results

The narrative in paragraph two states, “Soil gas data for PCE, benzene, ethyl benzene
was evaluated for additive effects and cumulative risk and compared to the VISL target
soil gas concentration.” Cumulative risk cannot be compared to the VISL target soil gas
concentration. The cumulative risk result only tells you the risk posed by the detected
compounds and what the risk level indicates – whether the risk is acceptable or not
acceptable. Please remove the comparison to VISL target soil gas concentrations.

If the Division’s interpretation is misunderstood or misinterpreted, please clarify that
statement in a clear manner.

8. 4.3 Vapor Analytical Results

The narrative in paragraph three states, “…the acceptable risk range of 10-6 to 10-4 and
an SMP and EC is required to protect human health and the environment ‘if the proposed
land use was residential’ according to DEQ.” This statement is incorrect. The
acceptable risk range of 10-6 to 10-4 applies to all land use scenarios (residential,
commercial/industrial, etc.).

Additionally, the narrative states that calculated cumulative risk of soil gas data was
3.6x10-6 using six detected compounds. This value exceeds the 1x10-6, the lower bound
of the acceptable risk range assuming the evaluation was based residential scenario.

Thus, if cumulative risk exceeds a CR of 1x10-6 but less than 1x10-4, the site falls within
the acceptable risk range or site management range, (residential or
commercial/industrial). A site management plan (SMP) and an environmental covenant
(EC) will be required to mitigate risk for the evaluated land use.
9. Section 4.3.2 Sub-slab Attenuation Factors AFss

It is correct that EPA indicates that for theoretical considerations, larger non-residential
buildings constructed of thick slabs will have low AFss as compared to residential
buildings. Based on this, EPA contends that where appropriate, building-specific data,
information, and analysis may be considered when evaluating VI into larger
nonresidential buildings.
However, until such time that EPA compiles building-specific data and information, VI
evaluation, regardless of building type must adhere to the current recommended standards
and the AFss as found in the 2015 Final VI Guidance Document.

Based on the above, Edison has no justifiable basis to make any adjustments to the AFss
and hence the Division will disregard any inferences made with regards to the
recommended default AFss.

10. 5.0 Completed Vapor Intrusion Pathway – Multiple Lines of Evidence

The narrative states, “vapors do not appear to be entering the building from the
subsurface and this is based on Multiple Lines of Evidence.” However, as stated in 4.3.1
Indoor Air Sample, “Indoor air samples from VP-5 indicated the presence of several
VOCs of various concentrations, notably benzene, ethyl benzene, hexane, PCE, heptane,
and total xylenes.” The narrative further attributes these concentrations to shop related
activities. Is PCE used at the auto shop as a degreaser or brake cleaner, or is it from
vapor intrusion related to PCE detected in the soil vapor? Was an inventory of the auto
shop conducted to determine what chemical compounds were utilized as part of daily
operations? Were any chemicals of concern (such as PCE containing products) removed
from the auto shop inventory prior to indoor air sampling to try to avoid confounding of
indoor air constituents? The question of why PCE is detected in indoor air is relevant and
must be answered.

11. 5.0 Completed Vapor Intrusion Pathway – Multiple Lines of Evidence

The narrative in the fifth paragraph states, “This is a chemical fingerprint pointing to a
vapor intrusion pathway that is completed in the subsurface…” This is a confusing and
non-standard use of the term “exposure pathway completion”. An exposure pathway is
considered ‘complete’ when a constituent (stressor) in the environment travels from the
source to a receptor. If an exposure is incomplete, then at least one part of the exposure
pathway is missing, and the receptor is not exposed. The use of the phrase “completed
or closed vapor pathway in the subsurface” is used again in the narrative in the sixth and
seventh paragraphs which a non-standard use and introduces confusion in interpretation.
If PCE is found in soil gas as well as indoor air and there is no evidence of contribution
from an ambient source, then VI is complete. On the other hand, VI may be “potentially”
complete if PCE is detected in soil gas but not indoor air. If there is evidence of a
confining layer beneath the building or throughout the site and PCE is not detected
indoor, then one may reasonably conclude that VI pathway is incomplete. However, this
conclusion should be supported by multiple lines of evidence, which in this case the
multiple lines of evidence argument presented is not valid.

12. 5.0 Completed Vapor Intrusion Pathway – Multiple Lines of Evidence

The narrative states Vinyl chloride was detected in groundwater at concentrations
predicted by VISL to impact indoor air. However, the narrative also states, “we can
disregard the groundwater to vapor intrusion pathway for vinyl chloride” based on no
detections of vinyl chloride in the sub slab vapor samples. The statement is not factual.
If the VC concentration exceeds the VISL target GW concentration for VI but VC is not
detected in soil gas, we cannot disregard GW as a source of VC. Further investigation
will be required since transport of vapors from groundwater into the vadose zone could
be ongoing. On the other hand, if the VC concentration is less than the VISL target GW
concentration, then VI is not an issue provided VC is not detected in soil gas.

Please revise the text basing your arguments on the groundwater data presented for the
years that data were collected.

13. 7.0 Conclusions

Please see Comment #9 above. The Division will disregard any inferences made with
regards to the possible adjustments to the default AFss when evaluating VI.

14. 7.0 Conclusions

The narrative states “the original purpose of the Phase II LSI was fulfilled – which was to
determine the impacts on the subsurface from the oil water separators and the waste oil
UST.” Benzene was detected in the groundwater at the site during the February 2020
sampling event above the MCL at MW-3 (SB-5) and MW-4 (SB-6). Benzene may be
associated with activities related to operation of an auto shop as it may be associated with
the oil water separators and waste oil UST. Benzene detections during the 2020
groundwater sampling must be addressed. Additional sampling will be necessary to
determine what the benzene concentrations are at these locations during a timeframe that
may produce similar groundwater conditions found during the 2020 sampling event.

15. 7.1 DEQ Comments and Responses

This section lists the number of comments made on each version of this report along with
a statement that “each of these comments has been addressed in the report.” Please note
that the Division determines whether comments have been addressed adequately and to
its satisfaction. If the comments have not been addressed, the comments will be included
in the next set of comments and the report will not be approved. For example, the
Division provided several repeated comments that were emailed on January 21, 2022, and
April 25, 2022. These comments included the request for additional groundwater
sampling to address the benzene concern. The comments have not yet been addressed.

16. 7.2 West Parcel No. 015 – Groundwater

The narrative states, “Benzene was not detected in any of the groundwater samples
sampled during the current study and is therefore below any TGC for benzene.” While
the most recent round of groundwater sampling did not detect benzene at any of the well
locations, benzene was detected above the MCL previously (2020) at locations MW-3
and MW-4. Additional sampling will be required during a timeframe that may produce
similar groundwater conditions found during the 2020 sampling event to verify current
conditions. A single GW monitoring event cannot serve as conclusive evidence of
absence of contaminants in GW. A trend needs to be established given that benzene had
been detected in the past. Please propose additional groundwater samples to address the
benzene concern.

17. 7.2 West Parcel No. 015 – Subsurface Vapors

Again, the narrative uses the term “vapor pathway completion” incorrectly by stating,
“..the conclusion that the vapor pathway is completed in the subsurface…” Please see
comment #11. Detection of VOCs in GW may suggest that the VI pathway is
“Potentially Complete” and further evaluation is warranted. The phrase “complete Vapor
Pathway in the subsurface” is confusing and non-standard. Please revise the text to
address this comment.

18. 7.3 East Parcel No. 014

The Division does not concur with your conclusion that no further sampling is required to
address the 2020 benzene detections. As discussed above in comment #5, seasonal
fluctuations in the water table may contribute to fluctuations in benzene concentrations
observed in groundwater. While the March 2022 groundwater water elevation
measurements may contribute some information to this issue, additional groundwater
sampling is required to provide actual data regarding the groundwater benzene
concentrations at this site. Groundwater elevation measurements cannot serve as a
replacement for the required data. A single GW monitoring event also cannot serve as
conclusive evidence of absence of contaminants in GW. A trend needs to be established
given that benzene had been detected in the past. Please propose additional groundwater
samples to address the benzene concern. This set of comments represents the third time
the Division has requested additional groundwater sampling.

19. 8.1 DEQ Assessment of the Edison Street Plume

The narrative states, “…we look forward to evaluating DEQ characterization work prior
to conducting more work at the subject property. We are hopeful that the report will
provide more insight not only as to the source(s) of the subsurface PCE but help to
identify the potentially responsible parties for the contamination in the subsurface.”

Unless PCE has been utilized at the subject property, the Division is not questioning
whether the subject property is the source of the PCE plume. However, a PCE plume
(with associated daughter products) that has impacted the subject property warrants
characterization and determination of hazards or risks posed by these contaminants and
appropriate mitigation and protective measures.

20. 8.3 East Parcel No. 014 Recommendations

The narrative states, “we concur that additional groundwater sampling during a period
of high-water table conditions, if conducted at all, would help determine whether the
benzene concentrations have decreased or remained below MCLs.” The Division has
requested additional groundwater sampling as part of the comments emailed on January
21, 2022, and April 25, 2022, to address the concern regarding the benzene
concentrations detected during the 2020 sampling event. Additional groundwater data is
required to make this determination.

21. 8.3 East Parcel No. 014 Recommendations

The narrative states, “Residential usage status may be completed under two different
scenarios…”

The first scenario includes additional groundwater sampling for benzene at a time
acceptable to DEQ and the owner. This scenario is preferred by the Division. However,
the above statement is not accurate. Residential land use must meet several criteria: GW
quality must be of a certain standard; meeting MCLs; meeting VISL levels if VOCs are
of concern; and meeting soil standards, among others. Without additional sampling, the
Division cannot make this determination.
Under the second scenario the property may qualify for residential use provided risks at
the site are within the acceptable risk range and controls can be imposed to mitigate risk.
The property, however, may not qualify for unlimited or unrestricted land use which
means no SMP and no controls.

22. Table 1, Table 2, and Table 3: Summary of Analytical Results

Footnotes reference EPA RSLs from May 2021, April 2019, and no specific reference
date, respectively. Please reference the current U.S. EPA RSLs and ensure you are
including the updated screening levels in each of the tables.

23. Tables 4 and 5 are missing from the report. Please provide the tables.

24. It is the Division’s impression that the report presented provides no distinctive direction
to finality. The objective of this report was to determine impacts of PCE and other
volatile organic compounds (VOCs) in soil gas or groundwater at the Edison Site. The
sources of PCE and other VOCs present is not the subject of this investigation and must
be reserved for another project.

The Division recommends that to conclude this project in an expeditious manner and to
bring a regulatory finality to the Edison site, Edison should prepare a final report by
addressing all the series of comments provided by the Division in a cogent or coherent
manner.

Edison should focus on discussing the soil data, the soil gas data, and the groundwater
data and how the data characterizes the environmental conditions at the site and how it
impacts the risks at the site. Specifically, Edison should address the following:

• Soil Gas data - vapor intrusion evaluation at the site based on the soil gas data
collected. Are the levels of constituents detected in soil gas significant enough to
impact indoor air quality through the vapor intrusion pathway? What are the
additive effects if multiple chemicals are detected? Calculate the cumulative
carcinogenic risk (CCR) and the hazard index (HI) for non-carcinogenic
compounds and discuss the level of risk quantified as it relates to site
management, corrective action, or no further action.

• Groundwater data - does the data support groundwater (GW) as a source of vapor
producing compounds that could influence VI at the site? Are levels of detected
constituents in GW greater than the target groundwater concentration (TGC) and
maximum contaminant level (MCL), and if not, is GW a vapor source that can
influence VI? What are the CCR and HI posed by detected contaminants at the
site if relevant?

• Soil data - are residual contaminants in soil at levels that may impact migration to
GW? What are the DAF-20 values and are they significant? Are the detected soil
constituents greater than commercial/industrial RSLs? The RSLs should be the
default values and not the calculated site-specific screening levels (SSLs) which
are relevant for dust inhalation exposures at sites, (VOCs and SVOCs). What will
be the cumulative effects or additive effects if there are multiple detected
constituents? Please calculate the CCR and HI if relevant.

The Division, through its comments, has consistently provided explicit guidelines to
Edison on the environmental conditions at the site based on the data provided. Data
provided indicates risks to receptors at the site from detected contaminants can easily be
mitigated through a site management plan (SMP) and an environmental covenant (EC).

If a final report can be prepared by addressing the Division’s comments and focusing
discussions on the data collected, there could be a resolution to this project.
Accomplishing this endeavor by considering the Division’s suggestions and comments
and incorporating these changes in the report, will facilitate an expeditious approval by
the Division.

If report approval is granted based on the suggested revisions, and additional
groundwater sampling is conducted to address the benzene concern, a draft SMP and EC
can be submitted that will address all controls and measures needed at the site for
mitigation of risks and the protection of workers.

25. Inclusion:

Included with these comments are past comments from the Division to aid Edison with
the necessary revisions of the report.

Division Comments of January 21, 2022.
Division Comments of April 25, 2022.

Output generated 24JUN2023:20:00:38
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Site-Specific
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATcom (averaging time - composite worker)365 365
EDcom (exposure duration - composite worker) yr 25 25
EFcom (exposure frequency - composite worker) day/yr 250 250
ETcom (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 24JUN2023:20:00:38
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Butadiene, 1,3-106-99-0 Yes Yes Yes Yes 4.09E-01 CA 1.36E+01 1.36E-01 --
Hexane, N-110-54-3 Yes Yes Yes Yes 3.07E+03 NC 1.02E+05 4.17E+01 --
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
6.13E+09 2.21E+09 25 2.00 CRC 3.00E-05 I 2.00E-03 I No 4.09E-01 8.76E+00
7.01E+08 6.99E+08 25 1.10 CRC -7.00E-01 I No -3.07E+03
Output generated 24JUN2023:20:00:38
Commercial Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
Butadiene, 1,3-106-99-0 4.10E-01 3.34E-02 1.00E-06 9.36E-05 4.68E-02 3.00E-05 I 2.00E-03 IRIS 25 No
Hexane, N-110-54-3 2.70E+00 2.20E-01 -6.16E-04 8.81E-04 -7.00E-01 IRIS 25 No
*Sum --1.00E-06 -4.77E-02 ---
Output generated 24JUN2023:20:00:38
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Butadiene, 1,3-106-99-0 Yes Yes 54.09 PHYSPROP 2.11E+03 PHYSPROP 7.35E+02 PHYSPROP -
Hexane, N-110-54-3 Yes Yes 86.18 PHYSPROP 1.51E+02 PHYSPROP 9.50E+00 PHYSPROP -
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H`
and
HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
7.36E-02 3.01E+00 EPI 3.01E+00 268.75 PHYSPROP 4.25E+02 CRC 5370.46 CRC 2.00 CRC
1.80E+00 7.36E+01 EPI 7.36E+01 341.85 PHYSPROP 5.08E+02 CRC 6895.32 CRC 1.10 CRC
Output generated 26JUN2023:13:12:38
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Site-Specific
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATcom (averaging time - composite worker)365 365
EDcom (exposure duration - composite worker) yr 25 25
EFcom (exposure frequency - composite worker) day/yr 250 250
ETcom (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 26JUN2023:13:12:38
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 1.57E+00 CA 5.24E+01 6.93E+00
Butadiene, 1,3-106-99-0 Yes Yes Yes Yes 4.09E-01 CA 1.36E+01 1.36E-01
Chloroform 67-66-3 Yes Yes Yes Yes 5.33E-01 CA 1.78E+01 3.55E+00
Ethylbenzene 100-41-4 Yes Yes Yes Yes 4.91E+00 CA 1.64E+02 1.52E+01
Methylene Chloride 75-09-2 Yes Yes Yes Yes 1.23E+03 CA 4.09E+04 9.23E+03
Tetrachloroethylene 127-18-4 Yes Yes Yes Yes 4.72E+01 CA 1.57E+03 6.52E+01
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
No (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 1.57E+00 1.31E+02
--6.13E+09 2.21E+09 25 2.00 CRC 3.00E-05 I 2.00E-03 I No 4.09E-01 8.76E+00
Yes (80)1.26E+09 1.19E+09 25 -2.30E-05 I 9.77E-02 A No 5.33E-01 4.28E+02
Yes (700)5.48E+07 5.44E+07 25 0.80 CRC 2.50E-06 C 1.00E+00 I No 4.91E+00 4.38E+03
No (5)1.99E+09 1.73E+09 25 13.00 CRC 1.00E-08 I 6.00E-01 I Mut 1.23E+03 2.63E+03
No (5)1.65E+08 1.49E+08 25 -2.60E-07 I 4.00E-02 I No 4.72E+01 1.75E+02
Output generated 26JUN2023:13:12:38
Commercial Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Sub-Slab and
Exterior Soil
Gas
Concentration
Csg \
(µg/m 3)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Benzene 71-43-2 3.6 1.08E-01 8.81E-03 6.87E-08 2.47E-05 8.22E-04 7.80E-06 I
Butadiene, 1,3-106-99-0 0.41 1.23E-02 1.00E-03 3.01E-08 2.81E-06 1.40E-03 3.00E-05 I
Chloroform 67-66-3 1.1 3.30E-02 2.69E-03 6.19E-08 7.53E-06 7.72E-05 2.30E-05 I
Ethylbenzene 100-41-4 3.7 1.11E-01 9.05E-03 2.26E-08 2.53E-05 2.53E-05 2.50E-06 C
Methylene Chloride 75-09-2 0.81 2.43E-02 1.98E-03 1.98E-11 5.55E-06 9.25E-06 1.00E-08 I
Tetrachloroethylene 127-18-4 1000 3.00E+01 2.45E+00 6.36E-07 6.85E-03 1.71E-01 2.60E-07 I
*Sum ---8.19E-07 -1.74E-01 -
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
3.00E-02 IRIS 25 No
2.00E-03 IRIS 25 No
9.77E-02 ATSDR 25 No
1.00E+00 IRIS 25 No
6.00E-01 IRIS 25 Mut
4.00E-02 IRIS 25 No
--
Output generated 26JUN2023:13:12:38
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Butadiene, 1,3-106-99-0 Yes Yes 54.09 PHYSPROP 2.11E+03 PHYSPROP 7.35E+02 PHYSPROP -
Chloroform 67-66-3 Yes Yes 119.38 PHYSPROP 1.97E+02 PHYSPROP 7.95E+03 PHYSPROP 80
Ethylbenzene 100-41-4 Yes Yes 106.17 PHYSPROP 9.60E+00 PHYSPROP 1.69E+02 PHYSPROP 700
Methylene Chloride 75-09-2 Yes Yes 84.93 PHYSPROP 4.35E+02 PHYSPROP 1.30E+04 PHYSPROP 5
Tetrachloroethylene 127-18-4 Yes Yes 165.83 PHYSPROP 1.85E+01 PHYSPROP 2.06E+02 PHYSPROP 5
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
7.36E-02 3.01E+00 EPI 3.01E+00 268.75 PHYSPROP 4.25E+02 CRC 5370.46 CRC 2.00 CRC
3.67E-03 1.50E-01 PHYSPROP 1.50E-01 334.25 PHYSPROP 5.36E+02 CRC 6988.53 CRC -
7.88E-03 3.22E-01 PHYSPROP 3.22E-01 409.25 PHYSPROP 6.17E+02 CRC 8501.43 CRC 0.80 CRC
3.25E-03 1.33E-01 PHYSPROP 1.33E-01 313.15 PHYSPROP 5.08E+02 CRC 6706.50 CRC 13.00 CRC
1.77E-02 7.24E-01 PHYSPROP 7.24E-01 394.45 PHYSPROP 6.20E+02 YAWS 8288.72 CRC -
Output generated 26JUN2023:20:04:06
Resident Air Inputs 1
Variable
Resident
Air
Default
Value
Site-Specific
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
EDres (exposure duration) years 26 26
ED0-2 (mutagenic exposure duration first phase) years 2 2
ED2-6 (mutagenic exposure duration second phase) years 4 4
ED6-16 (mutagenic exposure duration third phase) years 10 10
ED16-26 (mutagenic exposure duration fourth phase) years 10 10
EFres (exposure frequency) days/year 350 350
EF0-2 (mutagenic exposure frequency first phase) days/year 350 350
EF2-6 (mutagenic exposure frequency second phase) days/year 350 350
EF6-16 (mutagenic exposure frequency third phase) days/year 350 350
EF16-26 (mutagenic exposure frequency fourth phase) days/year 350 350
ETres (exposure time) hours/day 24 24
ET0-2 (mutagenic exposure time first phase) hours/day 24 24
ET2-6 (mutagenic exposure time second phase) hours/day 24 24
ET6-16 (mutagenic exposure time third phase) hours/day 24 24
ET16-26 (mutagenic exposure time fourth phase) hours/day 24 24
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) years 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 26JUN2023:20:04:06
Resident Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 3.60E-01 CA 1.20E+01 1.59E+00
Dichloroethylene, cis-1,2-156-59-2 Yes Yes Yes Yes 4.17E+01 NC 1.39E+03 2.50E+02
Toluene 108-88-3 Yes Yes Yes Yes 5.21E+03 NC 1.74E+05 1.92E+04
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
Yes (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 3.60E-01 3.13E+01
No (70)1.04E+09 1.07E+09 25 3.00 CRC -4.00E-02 X No -4.17E+01
No (1000)1.41E+08 1.43E+08 25 1.10 CRC -5.00E+00 I No -5.21E+03
Output generated 26JUN2023:20:04:06
Resident Vapor Intrusion Risk 3
Chemical
CAS
Number
Site
Groundwater
Concentration
Cgw \
(µg/L)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
Benzene 71-43-2 1.2 2.72E-01 9.70E-02 7.56E-07
Dichloroethylene, cis-1,2-156-59-2 5.1 8.51E-01 3.03E-01 -
Toluene 108-88-3 1.4 3.80E-01 1.35E-01 -
*Sum ---7.56E-07
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
2.61E-04 8.70E-03 7.80E-06 I 3.00E-02 IRIS 25 No
8.16E-04 2.04E-02 -4.00E-02 SCREEN 25 No
3.64E-04 7.29E-05 -5.00E+00 IRIS 25 No
-2.92E-02 ---
Output generated 26JUN2023:20:04:06
Chemical Properties 4
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Dichloroethylene, cis-1,2-156-59-2 Yes Yes 96.94 PHYSPROP 2.00E+02 PHYSPROP 6.41E+03 PHYSPROP 70
Toluene 108-88-3 Yes Yes 92.14 PHYSPROP 2.84E+01 PHYSPROP 5.26E+02 PHYSPROP 1000
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
4.08E-03 1.67E-01 PHYSPROP 1.67E-01 333.25 PHYSPROP 5.36E+02 CRC 7217.97 CRC 3.00 CRC
6.64E-03 2.71E-01 PHYSPROP 2.71E-01 383.75 PHYSPROP 5.92E+02 CRC 7930.21 CRC 1.10 CRC
Output generated 26JUN2023:17:47:36
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Site-Specific
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATcom (averaging time - composite worker)365 365
EDcom (exposure duration - composite worker) yr 25 25
EFcom (exposure frequency - composite worker) day/yr 250 250
ETcom (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 26JUN2023:17:47:36
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Benzene 71-43-2 Yes Yes Yes Yes 1.57E+00 CA 5.24E+01 6.93E+00
Carbon Disulfide 75-15-0 Yes Yes Yes Yes 3.07E+03 NC 1.02E+05 5.21E+03
Dichloroethylene, cis-1,2-156-59-2 Yes Yes Yes Yes 1.75E+02 NC 5.84E+03 1.05E+03
Dichloroethylene, trans-1,2-156-60-5 Yes Yes Yes Yes 1.75E+02 NC 5.84E+03 4.57E+02
Tetrachloroethylene 127-18-4 Yes Yes Yes Yes 4.72E+01 CA 1.57E+03 6.52E+01
Toluene 108-88-3 Yes Yes Yes Yes 2.19E+04 NC 7.30E+05 8.07E+04
Trichloroethylene 79-01-6 Yes Yes Yes Yes 2.99E+00 CA 9.97E+01 7.43E+00
Vinyl Chloride 75-01-4 Yes Yes Yes Yes 2.79E+00 CA 9.29E+01 2.45E+00
Output generated 26JUN2023:17:47:36
Commercial Vapor Intrusion Screening Levels (VISL)3
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
No (5)3.98E+08 4.06E+08 25 1.20 CRC 7.80E-06 I 3.00E-02 I No 1.57E+00 1.31E+02
--1.47E+09 1.27E+09 25 1.30 CRC -7.00E-01 I No -3.07E+03
No (70)1.04E+09 1.07E+09 25 3.00 CRC -4.00E-02 X No -1.75E+02
No (100)1.73E+09 1.73E+09 25 6.00 CRC -4.00E-02 X No -1.75E+02
No (5)1.65E+08 1.49E+08 25 -2.60E-07 I 4.00E-02 I No 4.72E+01 1.75E+02
No (1000)1.41E+08 1.43E+08 25 1.10 CRC -5.00E+00 I No -2.19E+04
No (5)4.88E+08 5.15E+08 25 8.00 CRC 4.10E-06 I 2.00E-03 I Mut 2.99E+00 8.76E+00
No (2)1.00E+10 1.00E+10 25 3.60 CRC 4.40E-06 I 1.00E-01 I Mut 2.79E+00 4.38E+02
Output generated 26JUN2023:17:47:36
Commercial Vapor Intrusion Risk 4
Chemical
CAS
Number
Site
Groundwater
Concentration
Cgw \
(µg/L)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Benzene 71-43-2 1.2 2.72E-01 2.22E-02 1.73E-07 6.22E-05 2.07E-03 7.80E-06 I
Carbon Disulfide 75-15-0 0.9 5.30E-01 4.32E-02 -1.21E-04 1.73E-04 -
Dichloroethylene, cis-1,2-156-59-2 570 9.51E+01 7.75E+00 -2.17E-02 5.43E-01 -
Dichloroethylene, trans-1,2-156-60-5 12.2 4.68E+00 3.81E-01 -1.07E-03 2.67E-02 -
Tetrachloroethylene 127-18-4 3.2 2.32E+00 1.89E-01 4.91E-08 5.29E-04 1.32E-02 2.60E-07 I
Toluene 108-88-3 1.4 3.80E-01 3.10E-02 -8.68E-05 1.74E-05 -
Trichloroethylene 79-01-6 1.5 6.04E-01 4.93E-02 2.02E-07 1.38E-04 6.90E-02 4.10E-06 I
Vinyl Chloride 75-01-4 2.3 2.61E+00 2.13E-01 9.38E-07 5.97E-04 5.97E-03 4.40E-06 I
*Sum ---1.36E-06 -6.60E-01 -
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
3.00E-02 IRIS 25 No
7.00E-01 IRIS 25 No
4.00E-02 SCREEN 25 No
4.00E-02 SCREEN 25 No
4.00E-02 IRIS 25 No
5.00E+00 IRIS 25 No
2.00E-03 IRIS 25 Mut
1.00E-01 IRIS 25 Mut
--
Output generated 26JUN2023:17:47:36
Chemical Properties 5
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Benzene 71-43-2 Yes Yes 78.12 PHYSPROP 9.48E+01 PHYSPROP 1.79E+03 PHYSPROP 5
Carbon Disulfide 75-15-0 Yes Yes 76.14 PHYSPROP 3.59E+02 PHYSPROP 2.16E+03 PHYSPROP -
Dichloroethylene, cis-1,2-156-59-2 Yes Yes 96.94 PHYSPROP 2.00E+02 PHYSPROP 6.41E+03 PHYSPROP 70
Dichloroethylene, trans-1,2-156-60-5 Yes Yes 96.94 PHYSPROP 3.31E+02 EPI 4.52E+03 PHYSPROP 100
Tetrachloroethylene 127-18-4 Yes Yes 165.83 PHYSPROP 1.85E+01 PHYSPROP 2.06E+02 PHYSPROP 5
Toluene 108-88-3 Yes Yes 92.14 PHYSPROP 2.84E+01 PHYSPROP 5.26E+02 PHYSPROP 1000
Trichloroethylene 79-01-6 Yes Yes 131.39 PHYSPROP 6.90E+01 PHYSPROP 1.28E+03 PHYSPROP 5
Vinyl Chloride 75-01-4 Yes Yes 62.50 PHYSPROP 2.98E+03 EPI 8.80E+03 PHYSPROP 2
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H` and HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
5.55E-03 2.27E-01 PHYSPROP 2.27E-01 353.15 PHYSPROP 5.62E+02 CRC 7342.26 CRC 1.20 CRC
1.44E-02 5.89E-01 PHYSPROP 5.89E-01 319.15 PHYSPROP 5.52E+02 CRC 6391.01 CRC 1.30 CRC
4.08E-03 1.67E-01 PHYSPROP 1.67E-01 333.25 PHYSPROP 5.36E+02 CRC 7217.97 CRC 3.00 CRC
9.38E-03 3.83E-01 PHYSPROP 3.83E-01 321.85 PHYSPROP 5.16E+02 CRC 6907.27 CRC 6.00 CRC
1.77E-02 7.24E-01 PHYSPROP 7.24E-01 394.45 PHYSPROP 6.20E+02 YAWS 8288.72 CRC -
6.64E-03 2.71E-01 PHYSPROP 2.71E-01 383.75 PHYSPROP 5.92E+02 CRC 7930.21 CRC 1.10 CRC
9.85E-03 4.03E-01 PHYSPROP 4.03E-01 360.35 PHYSPROP 5.71E+02 YAWS 7504.78 CRC 8.00 CRC
2.78E-02 1.14E+00 PHYSPROP 1.14E+00 259.85 PHYSPROP 4.25E+02 CRC 4971.32 CRC 3.60 CRC
Output generated 26JUN2023:12:10:36
Commercial Air Inputs 1
Variable
Commercial
Air
Default
Value
Site-Specific
Value
AFgw (Attenuation Factor Groundwater) unitless 0.001 0.001
AFss (Attenuation Factor Sub-Slab) unitless 0.03 0.03
ATcom (averaging time - composite worker)365 365
EDcom (exposure duration - composite worker) yr 25 25
EFcom (exposure frequency - composite worker) day/yr 250 250
ETcom (exposure time - composite worker) hr 8 8
THQ (target hazard quotient) unitless 0.1 1
LT (lifetime) yr 70 70
TR (target risk) unitless 1.0E-06 1.0E-06
Output generated 26JUN2023:12:10:36
Commercial Vapor Intrusion Screening Levels (VISL)2
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion
from Soil
Source?
(Cvp > C i,a,Target?)
Is Chemical
Sufficiently
Volatile and Toxic
to
Pose Inhalation
Risk
Via Vapor
Intrusion from
Groundwater
Source?
(Chc > C i,a,Target?)
Target
Indoor Air
Concentration
(TCR=1E-06
or THQ=1)
MIN(Cia,c,Cia,nc )
(µg/m 3)
Toxicity
Basis
Target
Sub-Slab and
Near-source
Soil Gas
Concentration
(TCR=1E-06
or THQ=1)
Csg ,Target
(µg/m 3)
Target
Groundwater
Concentration
(TCR=1E-06
or THQ=1)
Cgw ,Target
(µg/L)
Carbon Disulfide 75-15-0 Yes Yes Yes Yes 3.07E+03 NC 1.02E+05 5.21E+03
Chloromethane 74-87-3 Yes Yes Yes Yes 3.94E+02 NC 1.31E+04 1.09E+03
Cyclohexane 110-82-7 Yes Yes Yes Yes 2.63E+04 NC 8.76E+05 4.29E+03
Dichlorodifluoromethane 75-71-8 Yes Yes Yes Yes 4.38E+02 NC 1.46E+04 3.12E+01
Dichloropropane, 2,2-594-20-7 Yes No No Inhal. Tox. Info No Inhal. Tox. Info ---
Heptane, N-142-82-5 Yes Yes Yes Yes 1.75E+03 NC 5.84E+04 2.14E+01
Hexane, N-110-54-3 Yes Yes Yes Yes 3.07E+03 NC 1.02E+05 4.17E+01
Hexanone, 2-591-78-6 Yes Yes Yes Yes 1.31E+02 NC 4.38E+03 3.45E+04
Methyl Ethyl Ketone (2-Butanone)78-93-3 Yes Yes Yes Yes 2.19E+04 NC 7.30E+05 9.41E+06
Methyl Isobutyl Ketone
(4-methyl-2-pentanone)
108-10-1 Yes Yes Yes Yes 1.31E+04 NC 4.38E+05 2.33E+06
Toluene 108-88-3 Yes Yes Yes Yes 2.19E+04 NC 7.30E+05 8.07E+04
Trichloroethane, 1,1,1-71-55-6 Yes Yes Yes Yes 2.19E+04 NC 7.30E+05 3.11E+04
Trimethylbenzene, 1,2,4-95-63-6 Yes Yes Yes Yes 2.63E+02 NC 8.76E+03 1.04E+03
Trimethylbenzene, 1,3,5-108-67-8 Yes Yes Yes Yes 2.63E+02 NC 8.76E+03 7.33E+02
Xylene, m-108-38-3 Yes Yes Yes Yes 4.38E+02 NC 1.46E+04 1.49E+03
Xylene, o-95-47-6 Yes Yes Yes Yes 4.38E+02 NC 1.46E+04 2.07E+03
Xylene, p-106-42-3 Yes Yes Yes Yes 4.38E+02 NC 1.46E+04 1.55E+03
Xylenes 1330-20-7 Yes Yes Yes Yes 4.38E+02 NC 1.46E+04 1.62E+03
Output generated 26JUN2023:12:10:36
Commercial Vapor Intrusion Screening Levels (VISL)3
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; D = DWSHA; W = TEF applied; E = RPF applied;
U = user provided; G = see RSL User's Guide Section 5; CA = cancer; NC = noncancer.
Is Target
Groundwater
Concentration
< MCL?
(Cgw < MCL?)
Pure Phase
Vapor
Concentration
Cvp\
(25 ℃)\
(µg/m 3)
Maximum
Groundwater
Vapor
Concentration
Chc\
(µg/m 3)
Temperature
for Maximum
Groundwater
Vapor
Concentration
(℃)
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
IUR
(ug/m 3)-1
IUR
Ref
RfC
(mg/m 3)
RfC
Ref
Mutagenic
Indicator
Carcinogenic
VISL
TCR=1E-06
Cia,c
(µg/m 3)
Noncarcinogenic
VISL
THQ=1
Cia,nc
(µg/m 3)
--1.47E+09 1.27E+09 25 1.30 U -7.00E-01 U No -3.07E+03
--1.17E+10 1.92E+09 25 8.10 U -9.00E-02 U No -3.94E+02
--4.39E+08 3.37E+08 25 1.30 U -6.00E+00 U No -2.63E+04
--3.15E+10 3.93E+09 25 --1.00E-01 U No -4.38E+02
8.20E+08 2.57E+08 25 ---No --
--2.48E+08 2.78E+08 25 1.05 U -4.00E-01 U No -1.75E+03
--7.00E+08 6.99E+08 25 1.10 U -7.00E-01 U No -3.07E+03
--6.25E+07 6.55E+07 25 1.00 U -3.00E-02 U No -1.31E+02
--3.51E+08 5.19E+08 25 1.40 U -5.00E+00 U No -2.19E+04
--1.07E+08 1.07E+08 25 1.20 U -3.00E+00 U No -1.31E+04
No (1000)1.41E+08 1.43E+08 25 1.10 U -5.00E+00 U No -2.19E+04
No (200)8.90E+08 9.07E+08 25 8.00 U -5.00E+00 U No -2.19E+04
--1.36E+07 1.44E+07 25 0.90 U -6.00E-02 U No -2.63E+02
--1.60E+07 1.73E+07 25 1.00 U -6.00E-02 U No -2.63E+02
--4.73E+07 4.73E+07 25 1.10 U -1.00E-01 U No -4.38E+02
--3.77E+07 3.77E+07 25 0.90 U -1.00E-01 U No -4.38E+02
--5.05E+07 4.57E+07 25 1.10 U -1.00E-01 U No -4.38E+02
Yes (10000)4.56E+07 2.87E+07 25 --1.00E-01 U No -4.38E+02
Output generated 26JUN2023:12:10:36
Commercial Vapor Intrusion Risk 4
Chemical
CAS
Number
Site
Sub-Slab and
Exterior Soil
Gas
Concentration
Csg \
(µg/m 3)
Site
Indoor Air
Concentration
Ci,a\
(µg/m 3)
VI
Carcinogenic
Risk
CDI
(µg/m 3)
Carbon Disulfide 75-15-0 12 3.60E-01 2.94E-02
Chloromethane 74-87-3 0.71 2.13E-02 1.74E-03
Cyclohexane 110-82-7 1.2 3.60E-02 2.94E-03
Dichlorodifluoromethane 75-71-8 48 1.44E+00 1.17E-01
Dichloropropane, 2,2-594-20-7 1 --
Heptane, N-142-82-5 2 6.00E-02 4.89E-03
Hexane, N-110-54-3 2.7 8.10E-02 6.60E-03
Hexanone, 2-591-78-6 2.1 6.30E-02 5.14E-03
Methyl Ethyl Ketone (2-Butanone)78-93-3 43 1.29E+00 1.05E-01
Methyl Isobutyl Ketone (4-methyl-2-pentanone)108-10-1 7.6 2.28E-01 1.86E-02
Toluene 108-88-3 14 4.20E-01 3.42E-02
Trichloroethane, 1,1,1-71-55-6 19 5.70E-01 4.65E-02
Trimethylbenzene, 1,2,4-95-63-6 7.3 2.19E-01 1.79E-02
Trimethylbenzene, 1,3,5-108-67-8 1.9 5.70E-02 4.65E-03
Xylene, m-108-38-3 15 4.50E-01 3.67E-02
Xylene, o-95-47-6 5.5 1.65E-01 1.35E-02
Xylene, p-106-42-3 20.5 6.15E-01 5.01E-02
Xylenes 1330-20-7 20.5 6.15E-01 5.01E-02
*Sum ---
Output generated 26JUN2023:12:10:36
Commercial Vapor Intrusion Risk 5
VI
Carcinogenic
Risk
CR
VI
Hazard
CDI
(mg/m 3)
VI
Hazard
HQ
IUR
(ug/m 3)-1
IUR
Ref
Chronic
RfC
(mg/m 3)
RfC
Ref
Temperature
(℃)\
for
Groundwater
Vapor
Concentration Mutagen?
-8.22E-05 1.17E-04 -7.00E-01 U 25 No
-4.86E-06 5.40E-05 -9.00E-02 U 25 No
-8.22E-06 1.37E-06 -6.00E+00 U 25 No
-3.29E-04 3.29E-03 -1.00E-01 U 25 No
-----25 No
-1.37E-05 3.42E-05 -4.00E-01 U 25 No
-1.85E-05 2.64E-05 -7.00E-01 U 25 No
-1.44E-05 4.79E-04 -3.00E-02 U 25 No
-2.95E-04 5.89E-05 -5.00E+00 U 25 No
-5.21E-05 1.74E-05 -3.00E+00 U 25 No
-9.59E-05 1.92E-05 -5.00E+00 U 25 No
-1.30E-04 2.60E-05 -5.00E+00 U 25 No
-5.00E-05 8.33E-04 -6.00E-02 U 25 No
-1.30E-05 2.17E-04 -6.00E-02 U 25 No
-1.03E-04 1.03E-03 -1.00E-01 U 25 No
-3.77E-05 3.77E-04 -1.00E-01 U 25 No
-1.40E-04 1.40E-03 -1.00E-01 U 25 No
-1.40E-04 1.40E-03 -1.00E-01 U 25 No
--9.38E-03 ---
Output generated 26JUN2023:12:10:36
Chemical Properties 6
Chemical
CAS
Number
Does the
chemical
meet
the
definition
for
volatility?
(HLC>1E-5
or VP>1)
Does the
chemical
have
inhalation
toxicity
data?
(IUR
and/or
RfC)MW
MW
Ref
Vapor
Pressure
VP
(mm Hg)
VP
Ref
S
(mg/L)
S
Ref
MCL
(ug/L)
Carbon Disulfide 75-15-0 Yes Yes 76.14 U 3.59E+02 U 2.16E+03 U -
Chloromethane 74-87-3 Yes Yes 50.49 U 4.30E+03 U 5.32E+03 U -
Cyclohexane 110-82-7 Yes Yes 84.16 U 9.69E+01 U 5.50E+01 U -
Dichlorodifluoromethane 75-71-8 Yes Yes 120.91 U 4.85E+03 U 2.80E+02 U -
Dichloropropane, 2,2-594-20-7 Yes No 112.99 U 1.35E+02 U 3.91E+02 U -
Heptane, N-142-82-5 Yes Yes 100.21 U 4.60E+01 U 3.40E+00 U -
Hexane, N-110-54-3 Yes Yes 86.18 U 1.51E+02 U 9.50E+00 U -
Hexanone, 2-591-78-6 Yes Yes 100.16 U 1.16E+01 U 1.72E+04 U -
Methyl Ethyl Ketone (2-Butanone)78-93-3 Yes Yes 72.11 U 9.06E+01 U 2.23E+05 U -
Methyl Isobutyl Ketone (4-methyl-2-pentanone)108-10-1 Yes Yes 100.16 U 1.99E+01 U 1.90E+04 U -
Toluene 108-88-3 Yes Yes 92.14 U 2.84E+01 U 5.26E+02 U 1000
Trichloroethane, 1,1,1-71-55-6 Yes Yes 133.41 U 1.24E+02 U 1.29E+03 U 200
Trimethylbenzene, 1,2,4-95-63-6 Yes Yes 120.20 U 2.10E+00 U 5.70E+01 U -
Trimethylbenzene, 1,3,5-108-67-8 Yes Yes 120.20 U 2.48E+00 U 4.82E+01 U -
Xylene, m-108-38-3 Yes Yes 106.17 U 8.29E+00 U 1.61E+02 U -
Xylene, o-95-47-6 Yes Yes 106.17 U 6.61E+00 U 1.78E+02 U -
Xylene, p-106-42-3 Yes Yes 106.17 U 8.84E+00 U 1.62E+02 U -
Xylenes 1330-20-7 Yes Yes 106.17 U 7.99E+00 U 1.06E+02 U 10000
Output generated 26JUN2023:12:10:36
Chemical Properties 7
HLC
(atm-m 3/mole)
Henry's
Law
Constant
(unitless)
H`
and
HLC
Ref
Henry's
Law
Constant
Used in
Calcs
(unitless)
Normal
Boiling
Point
BP
(K)
BP
Ref
Critical
Temperature
TC\
(K)
TC\
Ref
Enthalpy of
vaporization
at
the normal
boiling point
ΔHv,b\
(cal/mol)
ΔHv,b\
Ref
Lower
Explosive
Limit
LEL
(%
by
volume)
LEL
Ref
1.44E-02 5.89E-01 U 5.89E-01 319.15 U 5.52E+02 U 6390.00 U 1.30 U
8.82E-03 3.61E-01 U 3.61E-01 249.15 U 4.16E+02 U 5110.00 U 8.10 U
1.50E-01 6.13E+00 U 6.13E+00 353.85 U 5.53E+02 U 7160.00 U 1.30 U
3.43E-01 1.40E+01 U 1.40E+01 243.35 U 3.85E+02 U 4800.00 U -
1.61E-02 6.58E-01 U 6.58E-01 342.45 U 5.39E+02 U 7000.00 U -
2.00E+00 8.18E+01 U 8.18E+01 371.65 U 5.40E+02 U 7590.00 U 1.05 U
1.80E+00 7.36E+01 U 7.36E+01 341.85 U 5.08E+02 U 6900.00 U 1.10 U
9.32E-05 3.81E-03 U 3.81E-03 401.15 U 5.87E+02 U 8690.00 U 1.00 U
5.69E-05 2.33E-03 U 2.33E-03 352.65 U 5.37E+02 U 7480.00 U 1.40 U
1.38E-04 5.64E-03 U 5.64E-03 389.15 U 5.75E+02 U 8240.00 U 1.20 U
6.64E-03 2.71E-01 U 2.71E-01 384.15 U 5.92E+02 U 7930.00 U 1.10 U
1.72E-02 7.03E-01 U 7.03E-01 347.15 U 5.45E+02 U 7140.00 U 8.00 U
6.16E-03 2.52E-01 U 2.52E-01 442.15 U 6.49E+02 U 9370.00 U 0.90 U
8.77E-03 3.59E-01 U 3.59E-01 438.15 U 6.37E+02 U 9320.00 U 1.00 U
7.18E-03 2.94E-01 U 2.94E-01 412.15 U 6.17E+02 U 8520.00 U 1.10 U
5.18E-03 2.12E-01 U 2.12E-01 417.15 U 6.30E+02 U 8660.00 U 0.90 U
6.90E-03 2.82E-01 U 2.82E-01 411.15 U 6.16E+02 U 8530.00 U 1.10 U
6.63E-03 2.71E-01 U 2.71E-01 411.15 U 6.20E+02 U 8520.00 U -