DERR-2025-005259

Stantec Consulting Services Inc.
2890 East Cottonwood Parkway; Suite 300
Salt Lake City UT 84121-7283
Tel: [phone]

V//230706007/05-reports/delivs/2024/ Spring 2024SumRept

June 24, 2024

Mr. Joseph Katz
Environmental Scientist, Project Manager
Division of Environmental Response and Remediation
Utah Department of Environmental Quality
P.O. Box 144840
Salt Lake City, Utah
84114-4840

RE: Site Center’s Summary Letter-Report, Associated with Spring 2024 Sampling Indoor Air at
Suite #38 (It’s About Time) and Sub-Slab Soil Gas Monitoring Probes

Former Ft. Union Dry Cleaners
Midvale, Salt Lake County, Utah

Stantec Consulting Services Inc. (“Stantec”) has prepared this letter-report on behalf of Site
Centers to provide the Utah Department of Environmental Quality, Voluntary Cleanup Program
(UDEQ, VCP) with a brief summary of activities associated with recent air quality sampling at The
Shops at Ft. Union shopping mall in Midvale, Utah (VCP Site # C079). Sampling included
collecting an indoor air sample at Suite #38 (It’s About Time) and four sub-slab soil gas samples
within different tenant suites at the site.
This letter-report presents tabulated analytical results, figures, and copies of the laboratory result
reports. If you have any questions or concerns, please contact either myself at [phone] or
Site Center’s Project Manager, Mr. Michael McCrone at [phone] .
Respectfully,

John G. Russell, III, CPG
Sr. Hydrogeologist, Environmental Risk Manager

CC: M. McCrone/Site Centers
A. Peck/Holland & Hart
R. Pratt/Stantec

SPRING 2024 SUMMARY LETTER-REPORT
1
EXECUTIVE SUMMARY
On behalf of Site Centers, Stantec has prepared this report to present the results of the
respective April 26th and May 8, 2024 regional sub-slab soil gas sampling and Suite #38 (It’s About
Time) indoor air sampling field activities and analytical results associated with The Shops at Ft.
Union mall in Midvale, Utah. Reference Figures 1 and 2 for general and site-specific, location
maps. Figure 3 identifies individual tenant suites located within the shopping mall area, including
Suite #34 a former dry cleaning operation.
As proposed in our February 2024 Suite #38 Sampling Summary Report, Suite #38 was the only
tenant suite proposed for sampling during the next scheduled Spring 2024 indoor air sampling
event because all other suites’ indoor air analyte concentrations were below corollary United
States Environmental Protection Agency (US EPA) Commercial Indoor Air Vapor Intrusion
Screening Levels (VISLs) during at least two to three consecutive, prior sampling events. As
documented in historical summary reports, the UDEQ apprised Stantec that any suites not
sampled may require sampling as part of final VCP site closure proceedings.
Following review of the February 2024 Suite #38 indoor air sampling results, which indicated an
increase in trichloroethylene (TCE) concentrations in Suite #38 indoor air, Stantec and the UDEQ
discussed the possibility that, if Site Centers wanted, we could conduct another round of sub-
slab soil gas sampling to investigate if and to what degree subsurface soil gas beneath localized
portions of the building might or might not be impacted by TCE and tetrachloroethylene (PCE)
concentrations. The only other times sub-slab soil gas samples had been collected at the site
were during April 2013 and November 2019. Re-sampling of sub-slab soil gas probes would be
used in pursuit of possible VCP site closure, depending on the sub-slab soil gas and indoor air
quality analytical results.
As proposed in Site Centers’ February 2024 summary report, Stantec inspected the shopping
mall suites within which sub-slab soil gas monitoring probes were installed in 2013 (and the lone
probe inside Suite #38 in 2019), investigating if the probes were readily-accessible for soil gas
sampling or possibly covered by new flooring and inaccessible for locating/sampling. Many
suites’ flooring materials have been upgraded and/or replaced over the years, as part of suite
remodeling by various tenants. In April 2024, Stantec identified that the only sub-slab soil gas
monitoring probes available for sampling were the following probes: Suites #46 (Sally Beauty),
#38 (It’s About Time), and two different probes inside Suite #50 (Office Max).
Stantec observed that the lone sub-slab soil gas monitoring probe inside Suite #34 had been
covered by new flooring associated with recent remodeling of the suite. Upon apprising the
UDEQ of the finding, and reporting that we preferred not to disturb the new tenant’s operations
through installation of a new probe inside the suite, the UDEQ stipulated that a new
replacement probe would need to be installed and sampled, either inside Suite #34 or
somewhere between Suite #34 and Suite #38. The highest sub-slab soil gas PCE and TCE
concentrations during the preceding 2013 and 2019 soil gas sampling events were associated
with the probes located at these two specific suites.
2
SPRING 2024 SUMMARY LETTER-REPORT
Stantec/Site Centers decided against installing a probe inside Suite #36 to avoid disrupting the
new tenant’s established flooring and operations. During subsequent discussions with the UDEQ,
it was agreed that, if a new probe was installed inside the vacant hallway located west of and
contiguous to Suites #34 and #36, that probe could serve as a suitable sub-slab soil gas
monitoring location near Suite #34. The UDEQ also noted that we would need to submit a
“Proposed Work Plan” for proposed sub-slab soil gas probe installation and UDEQ approval, prior
to installation of the proposed probe.
On behalf of Site Centers, Stantec initiated conversation with the mall owner as to possible
locations for a proposed sub-slab soil gas monitoring probe within the hallway. Stantec
inspected the hallway west of Suite #34 and observed that it had been covered recently with
new flooring. In consideration of the new flooring in the hallway, anticipated time required for
Proposed Work Plan development/UDEQ approval, the availability of laboratory-certified
summa canisters and regulators, and Stantec field staff availability for conducting the soil gas
and indoor air sampling events within a similar timeframe, Stantec proceeded with sampling the
four existing sub-slab soil gas monitoring probes within Suites #46, #38, and two different probes
inside Suite #50 and then collected the indoor air sample inside Suite #38, shortly thereafter.
The Suite #38 indoor air sample was analyzed for the following Volatile Organic Compounds
(VOCs) by Method TO-15 Selected Ion Monitoring (SIM): tetrachloroethylene (aka,
perchloroethylene, ‘PERC’, or PCE) and possible PCE degradative byproducts TCE; cis- and
trans-dichloroethylene (cis/trans-DCE); 1,2-dichloroethane (1,2-DCA); and vinyl chloride. Table 1
presents recent indoor air results associated with laboratory Method TO-15 SIM analyses,
including the May 8, 2024 results. In summary, all analyte concentrations associated with the
Suite #38 indoor air sample were below corollary VISLs, except for TCE at 5.6 micrograms per
cubic meter (i.e., µg/m3), which exceeded the TCE VISL of 2.99 µg/m3. PCE was quantified at
0.47 µg/m3 in the indoor air sample for the first time since November 2019; however, the
concentration was well below the respective PCE VISL of 47.2 µg/m3.
Table 2 includes historical indoor air results associated with VOC analysis by standard Method
TO-15, as well as numerous other VOC constituents besides PCE and its degradative byproducts.
The UDEQ, VCP and Site Centers agreed that indoor air samples collected after the March 2017
sampling event would be analyzed for PCE and its five degradative byproducts by the SIM
method, in order for the laboratory Method Detection and Reporting Limits to satisfy corollary US
EPA Commercial Indoor Air VISL concentrations.
Table 3 presents the analytical laboratory results associated with the April 26, 2024 sub-slab soil
gas sampling event. Table 3 includes corollary US EPA May 2024 Commercial Sub-Slab Soil Gas
VISL concentrations associated with the VOC SIM results, including: PCE, TCE, cis/trans-DCE, 1,2-
DCA, and vinyl chloride. Copies of historical 2013 and 2019 sub-slab soil gas analytical results are
presented herein, following Table 3.
Figure 4 presents a summary of the 2013, 2019, and 2024 PCE and TCE sub-slab soil gas analytical
results. PCE concentrations in sub-slab soil gas probes increased since 2019, while TCE
concentrations decreased from 2019 to 2024.
SPRING 2024 SUMMARY LETTER-REPORT
3

1.0 APRIL AND MAY 2024 SUB-SLAB SOIL GAS AND INDOOR AIR SAMPLING
EVENTS
1.1 Suite #38 Indoor Air Sampling Protocol
On May 8, 2024, Stantec collected an indoor air sample from suite #38 (It’s About Time) in similar
fashion and protocol as sampled in the past and most recently during February 2024. The indoor
air sample was collected in a 6-liter, stainless-steel, laboratory-certified, summa canister,
equipped with an 8-hour flow rate regulator that was provided by ALS Laboratories of Salt Lake
City, Utah. The sampling location within the suite was similar to historical sampling locations atop
the floor, thereby representing a low-elevation, sampling point within the suite. The summa
canister was labeled and hand-delivered to ALS for quantitative analysis of PCE; TCE; cis- and
trans-1,2-DCE; 1,2-DCA; and vinyl chloride by the TO-15 SIM analytical methodology.
1.1.1 Indoor Air Analytical Results
Table 1 provides a summary of the analytical results associated with the May 8th sampling event
and recent analytical results by the TO-15, SIM laboratory method. Historical TO-15 VOC data
are presented in Table 2. A copy of the May 2024 laboratory result report is attached as
Appendix A.
All analyte concentrations were below corollary Commercial Indoor Air VISLs, except for TCE at
5.6 µg/m3, which exceeded the TCE VISL of 2.99 µg/m3. PCE was quantified for the first time since
November 2019 at 0.47 µg/m3, well below its corollary Commercial Indoor Air VISL of 47 µg/m3.
The TCE concentration was less than the February 2024 concentration of 7.6 µg/m3 and has
decreased significantly over the past several years.

1.2 Sub-Slab Soil Gas Sampling Protocol
On April 26, 2024, Stantec collected sub-slab soil gas samples from Suites #46 (Sally Beauty), #38
(It’s About Time), and two different probes inside Suite #50 (Office Max). Stantec collected the
samples in accordance with protocol utilized at the site in the past and as outlined within Site
Centers’/Stantec’s July 2019 Amended, Proposed Work Plan for Sub-Slab Soil Gas and Indoor Air
Sampling report that was approved previously by the UDEQ. In similar fashion as all previous
sampling events, Stantec coordinated with ALS for securing laboratory-certified, 6-liter, stainless
steel, summa canisters for use in collecting the sub-slab soil gas samples.
At each sampling probe, the summa canister was attached to the probe’s Swagelok®
compression fitting by means of new, disposable poly-tubing equipped with an in-line, air-tight,
manifolded valve-control system. An in-line, compression tee valve and interconnected tubing
were used to evacuate dead-air space within the probe and tubing by means of a portable
vacuum pump, prior to sub-slab soil gas sample collection. Once the dead-air within the probe
and sample delivery tubing were purged, then the vacuum pump assembly was isolated and a
soil gas sample was collected directly within the summa canister. The canister valve was opened
slowly, such that the flow of soil gas into the canister did not exceed 200 milliliters per minute
(ml/min), and then the valve was closed, with negative pressure remaining inside the canister.
SPRING 2024 SUMMARY LETTER-REPORT
4
The canisters were labeled as to sample time and date and then hand-delivered on the
afternoon of April 26, 2024 to ALS Global of Salt Lake City, Utah.
1.2.1 Sub-Slab Soil Gas Analytical Results
A copy of ALS’ laboratory result report is presented in Appendix B herein. Table 3 presents a
tabulation of the April 2024 sub-slab soil gas analytical results. Figure 4 highlights the PCE and TCE
analytical results associated with the 2024 sub-slab soil gas sampling results. Copies of historical
2013 and 2019 sub-slab soil gas data, excerpted from past Stantec reports, are presented
following Figure 4. Two of the sub-slab soil gas monitoring probes did not exist as of the 2013
sampling event, namely Suites #38 and #46.
In summary, PCE concentrations at sub-slab soil gas probes increased since 2019, while TCE
concentrations decreased from 2019 to 2024. The highest PCE and TCE concentrations were
quantified within the sub-slab soil gas sample collected beneath Suite #38. All 2024 TCE and PCE
sub-slab soil gas results are below the respective Commercial Sub-Slab Soil Gas VISL
concentrations (indicating low possibility for potential vapor intrusion into the building). Suite #38
indoor air quality results indicate presence of PCE, trans-DCE, and TCE at low concentrations,
with only TCE exceeding the Indoor Air Commercial VISL for TCE.
2.0 QUALITY ASSURANCE AND QUALITY CONTROL
The following sections discuss the Quality Assurance/Quality Control (QA/QC) measures utilized
during the indoor air and sub-slab soil gas sampling events. If any QA/QC issues were identified
by Stantec and/or ALS, each such potential concern is discussed below in terms of either the
Suite #38 indoor air or the sub-slab soil gas analyses and corollary laboratory result report.
2.1 Sample Requirements, Containers, and Preservation
The summa canisters and dedicated regulators were provided and certified by the laboratory.
The summa canisters were hand-delivered by Stantec staff to the laboratory the same day as
sample collection or the following day. Stantec’s review of Chain-of-Custody and laboratory QC
Reports indicated that there were no reports of issues as regards the summa canisters and
regulators.
2.2 Chain-of-Custody, Holding Time, and Record Keeping
Chain-of-Custody, sample labeling, and record keeping procedures were in accordance with
measures used previously and are deemed adequate for the objectives of the project. The
sample canisters remained in secure custody of the sampler until hand-delivery to the
laboratory. The samples were analyzed within prescribed Holding Times and the results are
deemed adequate for use. In summary, the results are deemed satisfactory and useable for this
investigation.
SPRING 2024 SUMMARY LETTER-REPORT
5
2.3 Cross-Contamination
The summa canisters and regulators were provided by the laboratory and were individually-
cleaned and certified, prior to sample collection. Stantec’s sampler wore nitrile gloves during
sampling activities.
2.4 Data Quality Indicators and QA/QC Samples
Stantec’s review of the laboratory’s Quality Control Reports, copies of which are included within
Appendices A and B respectively, indicates no serious issues as regards analytical methodology
and results. The QC Report associated with the May 2024 Suite #38 indoor air sample and
analysis reported a Laboratory Control Sample (LCS)/LCS Duplicate “flag” for Percent Recovery
performance limit exceedance for vinyl chloride. This is not considered significant and has little
to no bearing on the analytical results, which are similar to historical results associated with the
suite.
The QC Report associated with the sub-slab soil gas samples and analyses reported a LCS/LCSD
discrepancy for Percent Recovery performance limit exceedance for vinyl chloride and trans-
1,2-DCE. However, this is not deemed a significant concern as the 2024 sub-slab soil gas results
are similar to historical 2013 and 2019 analytical data.
Laboratory data reporting requisites were similar to historical analytical protocol and
methodologies, and appear valid and reflect adequate precision, accuracy,
representativeness, completeness, and comparability (PARCC) and to be otherwise adequate
for their intended use. Stantec’s comparative analysis of historical indoor air quality and sub-slab
soil gas results and QA/QC data indicate that the 2024 analytical results appear valid and
useable for ongoing monitoring of progress toward satisfying corollary VISL Cleanup Levels.
3.0 RECOMMENDATIONS
We propose that an indoor air sample be collected from only suite #38 (It’s About Time) during
the next two scheduled sampling events in August and November 2024.
Stantec proposes that, if suite #38 satisfies all corollary PCE, TCE, and byproduct VISL
concentrations during two (2) consecutive quarterly sampling events, then Stantec will conduct
two (2) consecutive, semi-annual sampling events that include sampling/analysis of all 11 suites.
The semi-annual sampling events are proposed for generalized Spring and Fall timeframes and
will entail similar sampling locations, protocol, and SIM laboratory analysis as practiced
historically.
If the two semi-annual sampling events indicate that all 11 suites satisfy all VISL (Commercial)
concentrations, then Site Centers proposes formal UDEQ “Closure” of the VCP project, including
Stantec’s decommissioning of the two soil vapor extraction (SVE) vacuum units and cement
grout abandonment of groundwater monitoring well MW-2 and all sub-slab soil gas probes -
based on current and ongoing, projected-future Commercial land use.
SPRING 2024 SUMMARY LETTER-REPORT
6

In the event that suite #38 does not satisfy all VISLs, then this lone suite will be sampled on a
quarterly basis until all corollary VISL concentrations are satisfied during two consecutive,
quarterly sampling events – at which time, the above-proposed, semi-annual sampling program
at all 11 suites will commence. In the event that one or more of the 11 suites does not satisfy all
VISLs during any future sampling event, then only those corresponding suite(s) would be
sampled on a quarterly basis - until all corollary VISL concentrations in those specific suites are
satisfied during two consecutive, quarterly sampling events.
Once the suite(s) of concern satisfy all corollary VISL concentrations for two consecutive
quarterly sampling events, then we propose implementing the above-proposed, semi-annual
sampling program at all 11 suites in pursuit of VCP project closure. Once all 11 suites achieve two
consecutive, semi-annual sampling events that satisfy VISLs, then Site Centers would request
formal UDEQ VCP project closure.
FIGURES
Site Center’s Summary Letter-Report
Spring 2024 Sampling Indoor Air at Suite #38 (It’s
About Time) and Sub-Slab Soil Gas Monitoring Probes
Former Ft. Union Dry Cleaners
Midvale, Salt Lake County, Utah
Design by Revised by
Figure 2 – General Site Location Map
LEGEND The Shops at Fort Union
Date Revised JR JR 8/20/13
CH-1
CH-4
CH-3
CH-2
Not to Scale
Generalized, Outer Perimeter of Property Comprising
The Shops at Ft. Union
Generalized, Areal Extent of VCP Subject Site
Design by Revised by
Figure 3 – Tenant Suites
LEGEND The Shops at Fort Union
Date Revised JR JR 8/21/13
CH-1
CH-4
CH-3
CH-2
Not to Scale
Tenant Suite # Tenant Name (Aug. 2013) Square Feet (sq. ft.)
GN
DC
SR
AT
MC
MWJD
FSSB
OM
US
Figure 4
Sub-Slab Soil Gas Monitoring Probe Layout
Date Drawn: May 2024
SVE Skid EXISTING Sub-Slab, Soil Gas Monitoring Probes
SVE Extraction Points Sub-Slab Soil Gas Commercial VISLs: PCE: 1,570 TCE: 99.7 Solid PVC Piping
Horizontal SVE, perforated PVC trench Indoor Air Commercial VISLs: PCE: 47.2 and TCE: 2.99
Suite #52
SVE-1SVE-2
Drawn by: JR
Suite #50
Suite #34
20-ft. deep,
SVE Well W-2
Buried Utility Corridor incl. Sewer &
Water, grades from South toward
North, generally west of Suite #34
Suite #40
Suite #38
Suite #36
Suite #32
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2
Suite
#46
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4
4
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#
5
6
3POM: TCE PCE
2013: < 0.81 1,500
2019: 3.7 23
2024: 2.6 220
4POM: TCE PCE
2013: < 0.81 1,400
2019: 4.6 57
2024: 0.55 94
7PAT : TCE PCE
2013: Did not exist
2019: 150 250
2024: 26 620
2PSB: TCE PCE
2013: Did not exist
2019: 3.1 14
2024: < 0.27 12
All PCE & TCE LAB results in micrograms per cubic meter; ug/m3
2019 FIGURE
Sub-Slab Soil Gas Results
and Tabulated Laboratory Results
Figure 5. Nov. 2019 PCE Results, Sub-Slab Soil
Gas Monitoring Probes
Date Drawn: 12-30-19
2013-Installed Sub-Slab, Soil Gas Monitoring Probes
Nov.2019-Installed Sub-Slab, Soil Gas Monitoring Probe
PCE Concentration adjacent to probe
(micrograms per cubic meter; ug/m3)
Suite #52
SVE-1SVE-2
Drawn by: JR
Suite #50
Suite #34
Suite #40
Suite #38
Suite #36
Suite #32
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4
2
Suite
#46
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6
Black-encircled probes were only 2013-installed, sub-slab soil gas monitoring probes located during September 2019 that were not covered by flooring or equipment.
6PS 2PSB
1PDC
3POM
4POM
7PAT
51
14
23
40
57
250
Tetrachloroethene
(PCE)
Trichloroethene
(TCE)Vinyl chloride trans-
1,2-Dichloroethene**
cis-
1,2-Dichloroethene**
1,2-
Dichloroethane
1PDC (Suite #34)11/21/19 51 E 5.9 E <0.13 <0.20 <0.20 <0.20
2PSB (Suite #46)11/21/19 14 E 3.1 <0.13 <0.20 <0.20 0.30
3POM (Suite #50)11/21/19 23 E 3.7 <0.13 <0.20 <0.20 <0.20
4POM (Suite #50)11/21/19 57 E 4.6 <0.13 <0.20 <0.20 0.36
6PS (Suite #56)11/21/19 40 E 1.8 <0.13 <0.20 <0.20 <0.20
7PAT (Suite #38)11/21/19 250 E 150 E <0.13 4.6 E <0.20 0.27
1570.00 99.70 92.90 NE NE 15.70
E -Iindicates that the analyte result exceeds calibration range.
NE - Not Established
Table 1
Sub-Slab Soil Gas Probe Analytical Results
The Shops at Fort Union
Midvale, Utah
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PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3)
*VOCs - Volatile Organic Compounds.
VISL
**US EPA has no VISL, currently – will coordinate risk-based VISLs with UDEQ when warranted.
VISL = US EPA Dec. 2019 Commercial, Sub-Slab Vapor Intrusion Screening Level, THQ=1 (ug/m3), Target Risk Level of 1E-06. VISL online calculator used to generate these VISLs:
https://www.epa.gov/vaporintrusion/vapor-intrusion-screening-level-calculator
Values in bold indicate concentrations above respective VISLs.
2013 FIGURE
Sub-Slab Soil Gas Results
and Tabulated Laboratory Results
Figure 4 – 2013 Locations (Approximate) and PCE Concentrations of Sub-Slab Samples
Dry Cleaner
PCE = 1700 µg/m3 Famous Footwear
PCE = 91 µg/m3
Office Max (NW Storage)
PCE = 94 µg/m3
Melty Way
PCE = 270 µg/m3
Office Max (Loading Dock)
PCE = 1400 µg/m3
Smith’s (Electrical)
PCE = 10 µg/m3
Smith’s (SE Storage)
PCE = 2.7 µg/m3
Office Max (NE Storage)
PCE = 1500 µg/m3
Basemap Source: ©2013 Microsoft, 3Di, ©2012Nokia
Location Dry Cleaner Boiler Room Office Max Loading Dock Office Max Storage (NE)Melty Way Office Max Storage (NW)Famous Footwear
Sample ID Sub-slab 2 Sub-slab OMSE Sub-slab OMNE Sub-slab MW Sub-slab OMNW Sub-slab 1
Date Collected 3/15/13 4/8/13 4/8/13 4/8/13 4/8/13 3/8/13
Tetrachloroethene 1700 1400 1500 270 94 91 21
Dichlorodifluoromethane 2.5 13000 19 3.8 4.0 5.8 4,400
Chloromethane 1.3 <0.31 0.52 <0.31 1.8 1.5 3,900
Freon 114 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NE
Bromomethane <0.58 <0.58 <0.58 <0.58 <0.58 <0.58 220
Freon 11 1.3 27 2.1 1.6 1.5 1.8 31,000
Freon 113 <1.1 1.9 1.9 1.2 1.2 <1.1 1,300,000
Acetone 66 17 45 91 21 83 1,400,000
Carbon disulfide 3.2 <0.47 <0.47 0.91 0.47 1.1 31,000
Methylene chloride 3.1 1.3 1.8 25 1.2 1.9 260
Vinyl Acetate <0.53 <0.53 3.2 <0.53 <0.53 <0.53 8,800
2-Butanone <0.44 2.7 2.9 6.1 <0.44 8.1 220,000
Ethyl Acetate 1.3 3.6 3.4 8.0 1.1 4.7 NE
Hexane 1.1 2.3 2.5 2.6 2.1 15 31,000
Chloroform <0.73 <0.73 <0.73 1.3 0.87 <0.73 5.3
Tetrahydrofuran <0.44 <0.44 <0.44 0.78 <0.44 <0.44 NE
1,2-Dichloroethane <0.61 <0.61 <0.61 <0.61 <0.61 <0.61 4.7
Carbon tetrachloride <0.94 <0.94 <0.94 <0.94 <0.94 <0.94 20
Benzene 0.95 1.6 1.6 1.7 1.9 5.8 16
Cyclohexane <0.52 <0.52 2.2 1.4 1.5 <0.52 260,000
Heptane 1.2 1.4 1.5 2.8 1.4 7.4 NE
4-Methyl-2-pentanone <0.61 26 31 14 3.7 <0.61 130,000
Toluene 8.7 11 11 8.6 11 36 220,000
Ethyl Benzene 1.0 1.9 2.1 3.2 2.3 3.4 49
m,p-Xylene 3.5 4.3 5.1 15 6.5 11 4,400
o-Xylene 1.1 1.7 2.0 10 2.4 3.2 4,400
Styrene <0.64 7.4 2.2 3.7 2.4 2.2 44,000
4-Ethyl toluene <0.74 <0.74 <0.74 0.84 <0.74 <0.74 NE
1,3,5-Trimethylbenzene <0.74 <0.74 <0.74 1.1 0.81 0.82 NE
1,2,4-Trimethylbenzene 1.5 1.3 1.4 3.5 2.3 2.3 310
NE - Not Established
Table 1
Fort Union Family Center
Midvale, Utah
US EPA VISLs
2013 SUB-SLAB SOIL VAPOR
ANALYTICAL RESULTS
*Only those analytes actually detected in at least one
sample are tabulated in this table
VISL = US EPA November 2011 Vapor Intrusion
Screening Level (ug/m3)
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ONLY THOSE ANALYTES ACTUALLY QUANTIFIED BY THE LABORATORY IN AT LEAST ONE SAMPLE ARE REPORTED BELOW:
Location
Sample ID
Date Collected
Tetrachloroethene
Dichlorodifluoromethane
Chloromethane
Freon 114
Bromomethane
Freon 11
Freon 113
Acetone
Carbon disulfide
Methylene chloride
Vinyl Acetate
2-Butanone
Ethyl Acetate
Hexane
Chloroform
Tetrahydrofuran
1,2-Dichloroethane
Carbon tetrachloride
Benzene
Cyclohexane
Heptane
4-Methyl-2-pentanone
Toluene
Ethyl Benzene
m,p-Xylene
o-Xylene
Styrene
4-Ethyl toluene
1,3,5-Trimethylbenzene
1,2,4-Trimethylbenzene
NE - Not Established
Table 1
Fort Union Family Center
Midvale, Utah
2013 SUB-SLAB SOIL VAPOR
ANALYTICAL RESULTS
*Only those analytes actually detected in at least one
sample are tabulated in this table
VISL = US EPA November 2011 Vapor Intrusion
Screening Level (ug/m3)
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Smith's Electrical Room Smith's Storage (SE)
Sub-slab SNE Sub-slab SSE
4/8/13 4/8/13
10 2.7 21
1.5 2.6 4,400
4.2 1.8 3,900
1.1 <1.0 NE
0.64 <0.58 220
3.3 1.7 31,000
1.7 1.2 1,300,000
14 27 1,400,000
0.73 0.60 31,000
1.6 0.86 260
<0.53 <0.53 8,800
<0.44 3.1 220,000
<0.54 3.1 NE
2.4 1.3 31,000
<0.73 <0.73 5.3
3.8 <0.44 NE
<0.61 0.76 4.7
<0.94 0.94 20
1.7 1.4 16
<0.52 <0.52 260,000
<0.61 0.73 NE
<0.61 <0.61 130,000
6.8 6.2 220,000
0.82 1.7 49
3.7 5.9 4,400
1.2 2.4 4,400
<0.64 2.0 44,000
<0.74 <0.74 NE
<0.74 <0.74 NE
1.4 1.6 310
US EPA VISLs
ONLY THOSE ANALYTES ACTUALLY QUANTIFIED BY THE LABORATORY ARE
REPORTED BELOW:
TABLES
Site Center’s Summary Letter-Report
Spring 2024 Sampling Indoor Air at Suite #38 (It’s
About Time) and Sub-Slab Soil Gas Monitoring Probes
Former Ft. Union Dry Cleaners
Midvale, Salt Lake County, Utah
Tetrachloroethene
(PCE)Vinyl chloride trans-1,2-
Dichloroethene**
cis-
1,2-Dichloroethene**
1,2-
Dichloroethane
Trichloroethene
(TCE)
GN 02/15/24 NS NS NS NS NS NS
GN 11/17/23 NS NS NS NS NS NS
GN 08/08/23 < 0.34 <0.13 <0.20 <0.20 < 0.20 0.75
GN 04/27/23 < 0.34 <0.13 <0.20 <0.20 < 0.20 0.33
GN 01/25/23 0.43 <0.13 <0.20 <0.20 0.25 0.95
GN 10/07/22 <0.34 <0.13 <0.20 <0.20 < 0.2 29.0
GN 06/29/22 <0.34 <0.13 <0.20 <0.20 0.26 1.5
GN 11/21/19 <0.34 <0.13 <0.20 <0.20 0.62 280
GN 05/09/19 0.41 <0.13 <0.20 <0.20 0.97 960.0
GN 06/07/18 0.67 <0.13 <0.20 <0.20 0.29 3.0
GN 03/20/18 0.56 <0.13 <0.20 <0.20 0.27 58.0
Indoor-GN 12/05/17 0.82 <0.13 <0.20 <0.20 <0.20 8.3
Indoor-GN 08/10/17 0.60 <0.13 <0.20 <0.20 <0.20 6.1
DC 02/15/24 NS NS NS NS NS NS
DC 11/17/23 NS NS NS NS NS NS
DC 08/08/23 < 0.34 < 0.13 0.21 <0.20 <0.20 1.20
DC 04/27/23 0.39 < 0.13 < 0.20 <0.20 <0.20 0.70
DC 01/25/23 0.68 < 0.13 0.23 <0.20 <0.20 0.97
DC 10/07/22 0.41 <0.13 <0.2 < 0.2 0.74 160.0
DC 06/29/22 <0.34 0.15 0.20 <0.20 0.59 7.7
DC 11/21/19 <0.34 <0.13 <0.20 <0.20 0.69 240
DUP 11/21/19 <0.34 <0.13 <0.20 <0.20 0.61 270
DUP 05/09/19 0.50 <0.13 0.32 <0.20 2.6 2500
DC 05/09/19 0.54 <0.13 0.29 <0.20 3.1 3000
DUP 06/07/18 0.84 <0.13 <0.20 <0.20 2.6 31
DC 06/07/18 0.93 <0.13 <0.20 <0.20 2.0 25
DC-DUP 03/20/18 1.3 <0.13 <0.20 <0.20 9.6 180
DC 03/20/18 0.54 <0.13 <0.20 <0.20 0.75 150
DC-DUP 03/20/18 0.47 <0.13 <0.20 <0.20 0.61 160
DUP 12/06/17 <0.34 <0.13 <0.20 <0.20 0.93 59
Indoor-DC 12/06/17 0.36 <0.13 <0.20 <0.20 <0.20 76
DUP 08/10/17 0.66 0.22 <0.20 <0.20 0.49 30
Indoor-DC 08/10/17 0.60 0.22 <0.20 <0.20 2.3 480
SR 02/15/24 NS NS NS NS NS NS
SR 11/17/23 < 0.34 < 0.13 0.51 < 0.20 < 0.20 1.30
SR 08/08/23 0.58 < 0.13 0.26 < 0.20 < 0.20 1.60
SR 04/27/23
SR 01/25/23 0.84 < 0.13 0.28 <0.20 2.40 2.20
SR 10/07/22 0.50 < 0.13 < 0.20 < 0.20 0.95 150
SR 06/29/22 0.84 < 0.13 0.51 <0.20 < 0.20 45
SR 11/21/19 0.54 <0.13 0.78 <0.20 2.3 480
SR 05/09/19 0.65 <0.13 1.80 <0.20 8.1 3,100
SR 06/07/18 1.3 <0.13 <0.20 <0.20 9.6 180
SR 03/20/18 0.4 <0.13 <0.20 <0.20 2.6 460
Indoor-SR 12/05/17 1.8 <0.13 <0.20 <0.20 0.96 11
Indoor-SR 08/10/17 2.1 <0.13 <0.20 <0.20 8.9 75
AT 05/08/24 0.47 <0.13 15.00 <0.20 < 0.20 5.60
AT 02/15/24 < 0.34 <0.13 2.10 <0.20 < 0.20 7.60
AT 11/17/23 < 0.34 <0.13 0.50 <0.20 < 0.20 3.20
AT 08/08/23 < 0.34 <0.13 0.46 <0.20 < 0.20 3.40
AT 04/27/23 < 0.34 <0.13 0.25 <0.20 < 0.20 2.80
AT 01/25/23 < 0.34 <0.13 0.90 <0.20 < 0.20 9.80
AT 10/07/22 < 0.34 < 0.13 1.40 < 0.20 0.21 19
AT 06/29/22 < 0.34 <0.13 4.30 <0.20 0.28 22
AT 11/21/19 0.74 <0.13 <0.20 <0.20 0.27 25
AT 05/09/19 0.36 <0.13 <0.20 <0.20 1.20 850
AT 06/07/18 0.67 <0.13 <0.20 <0.20 0.67 55
AT 03/20/18 0.49 <0.13 <0.20 <0.20 0.53 180
Indoor-AT 12/06/17 0.51 <0.13 <0.20 <0.20 0.44 2,200
Indoor-AT 08/10/17 0.50 <0.13 <0.20 <0.20 0.33 290
Table 1
Indoor Air Analytical Results
The Shops at Fort Union
Midvale, Utah
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PCE and By-Product VOCs* - Selected Ion Mode-SIM Micrograms per cubic-meter
Suite #32
Groovy Nails
Suite #34
Former Ft. Union
Dry Cleaners
Suite #36
Family Shoe
Repair
Suite #38
It's All About Time
Tenant operations were posted: 'Closed'
Tetrachloroethene
(PCE)Vinyl chloride trans-1,2-
Dichloroethene**
cis-
1,2-Dichloroethene**
1,2-
Dichloroethane
Trichloroethene
(TCE)
Table 1
Indoor Air Analytical Results
The Shops at Fort Union
Midvale, Utah
`
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PCE and By-Product VOCs* - Selected Ion Mode-SIM Micrograms per cubic-meter
MC 02/15/24 NS NS NS NS NS NS
MC 11/17/23 NS NS NS NS NS NS
MC 08/08/23 0.69 < 0.13 0.32 <0.20 < 0.20 1.80
MC 04/27/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 1.20
MC 01/25/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 0.44
MC 10/07/22 0.47 < 0.13 < 0.20 < 0.20 0.36 5.60
MC 06/29/22 <0.34 0.13 <0.20 <0.20 0.58 0.73
MC 11/21/19 <0.34 <0.13 <0.20 <0.20 <0.20 1.0
MC 05/09/19 0.86 <0.13 <0.20 <0.20 0.51 160.0
MC 06/07/18 0.91 <0.13 <0.20 <0.20 0.85 7.9
MC 03/20/18 0.95 <0.13 <0.20 0.46 <0.20 1.3
Indoor-MC 12/05/17 1.7 <0.13 <0.20 <0.20 <0.20 1.8
Indoor-MC 08/10/17 0.80 0.19 <0.20 <0.20 0.80 21
MWJD 02/15/24 NS NS NS NS NS NS
MWJD 11/17/23 NS NS NS NS NS NS
MWJD 08/08/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 0.28
MWJD 04/27/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 < 0.27
MWJD 01/25/23 < 0.34 < 0.13 <0.20 <0.20 0.26 < 0.27
MWJD 10/07/22 < 0.34 < 0.13 <0.20 <0.20 < 0.20 1.0
MWJD 06/29/22 < 0.34 0.25 <0.20 <0.20 0.67 <0.27
MWJD 11/21/19 0.34 <0.13 <0.20 <0.20 <0.20 <0.27
MWJD 05/09/19 0.34 <0.13 <0.20 <0.20 0.81 60.0
MWJD 06/07/18 0.60 0.17 <0.20 <0.20 1.10 3.4
MWJD 03/20/18 < 0.34 <0.13 <0.20 <0.20 <0.20 < 0.27
Indoor-MWJD 12/05/17 0.44 <0.13 <0.20 <0.20 <0.20 1.2
Indoor-MWJD 08/10/17 0.40 0.32 <0.20 <0.20 0.69 4.0
FS 02/15/24 NS NS NS NS NS NS
FS 11/17/23 NS NS NS NS NS NS
FS 08/08/23 <0.34 < 0.13 <0.20 <0.20 < 0.20 0.66
FS 04/27/23 <0.34 < 0.13 <0.20 <0.20 0.23 0.45
FS 01/25/23 <0.34 < 0.13 <0.20 <0.20 0.25 0.36
FS 10/07/22 <0.34 0.25 <0.20 <0.20 0.64 3.6
FS 06/29/22 <0.34 0.25 <0.20 <0.20 0.83 0.3
FS 11/21/19 <0.34 <0.13 <0.20 <0.20 0.28 1.4
FS 05/09/19 0.54 0.21 <0.20 <0.20 1.0 110.0
FS 06/07/18 1.2 0.18 <0.20 <0.20 1.6 6.0
FS 03/20/18 0.5 <0.13 <0.20 <0.20 0.7 0.6
Indoor-FS 12/05/17 0.56 <0.13 <0.20 <0.20 <0.20 3.4
Indoor-FS 08/10/17 2.6 0.49 <0.20 <0.20 1.5 6.1
SB 02/15/24 NS NS NS NS NS NS
SB 11/17/23 NS NS NS NS NS NS
SB 08/08/23 0.41 <0.13 <0.20 <0.20 < 0.20 < 0.27
SB 04/27/23 <0.34 <0.13 <0.20 <0.20 < 0.20 0.30
SB 01/25/23 <0.34 <0.13 <0.20 <0.20 0.20 < 0.27
SB 10/07/22 <0.34 <0.13 <0.20 <0.20 0.46 2.80
SB 06/29/22 <0.34 <0.13 <0.20 <0.20 0.63 < 0.27
SB 11/21/19 <0.34 <0.13 <0.20 <0.20 0.30 0.80
SB 05/09/19 0.69 0.19 <0.20 <0.20 1.8 92.0
SB 06/07/18 0.76 0.23 <0.20 <0.20 1.3 5.5
SB 03/20/18 0.36 <0.13 <0.20 <0.20 1.50 0.51
Indoor-SB 12/05/17 1.2 <0.13 <0.20 <0.20 <0.20 1.7
Indoor-SB 08/10/17 0.56 0.28 <0.20 <0.20 0.87 5.5
Suite #44
Fantastic Sam's
Suite #46
Sally Beauty
Supply
Suite #42
MW-JD
Suite #40
The Mail Center
Tetrachloroethene
(PCE)Vinyl chloride trans-1,2-
Dichloroethene**
cis-
1,2-Dichloroethene**
1,2-
Dichloroethane
Trichloroethene
(TCE)
Table 1
Indoor Air Analytical Results
The Shops at Fort Union
Midvale, Utah
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PCE and By-Product VOCs* - Selected Ion Mode-SIM Micrograms per cubic-meter
OM 02/15/24 NS NS NS NS NS NS
OM 11/17/23 NS NS NS NS NS NS
OM 08/08/23 NS NS NS NS NS NS
OM 04/27/23 < 0.34 < 0.13 < 0.20 < 0.20 < 0.21 < 0.27
OM 01/25/23 < 0.34 < 0.13 < 0.20 < 0.20 < 0.21 < 0.27
OM 10/07/22 < 0.34 < 0.13 < 0.20 < 0.20 0.21 4.40
OM 06/29/22 < 0.34 < 0.13 < 0.20 < 0.20 < 0.20 < 0.27
OM 11/21/19 0.50 <0.13 <0.20 <0.20 0.36 1.10
OM 05/09/19 0.75 <0.13 <0.20 <0.20 1.90 51.00
OM 06/07/18 0.55 <0.13 <0.20 <0.20 0.48 0.52
OM 03/20/18 < 0.34 <0.13 <0.20 <0.20 <0.20 0.58
Indoor-OM 12/06/17 0.56 <0.13 <0.20 <0.20 <0.20 6.0
Indoor-OM 08/10/17 0.47 <0.13 <0.20 <0.20 0.27 2.4
Suite #50
Office Max
U 02/15/24 NS NS NS NS NS NS
U 11/17/23 NS NS NS NS NS NS
U 08/08/23 NS NS NS NS NS NS
U 04/27/23 NS NS NS NS NS NS
U 01/25/23 <0.34 <0.13 <0.20 <0.20 <0.20 < 0.27
U 10/07/22 <0.34 <0.13 <0.20 <0.20 <0.20 < 0.27
U 06/29/22 <0.34 <0.13 <0.20 <0.20 <0.20 < 0.27
U 11/21/19 <0.34 <0.13 <0.20 <0.20 <0.20 3.2
U 05/09/19 <0.34 <0.13 <0.20 <0.20 0.47 1.8
U 06/07/18 <0.34 <0.13 <0.20 <0.20 0.25 <0.27
U 03/20/18 0.34 <0.13 <0.20 <0.20 <0.20 0.35
Indoor-U 12/06/17 <0.34 <0.13 <0.20 <0.20 <0.20 0.30
Indoor-U 08/10/17 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
S 02/15/24 NS NS NS NS NS NS
S 11/17/23 NS NS NS NS NS NS
S 08/08/23 NS NS NS NS NS NS
S 04/27/23 NS NS NS NS NS NS
S 01/25/23 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
S 10/07/22 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
S 06/29/22 <0.34 <0.13 <0.20 <0.20 0.29 <0.27
S 11/21/19 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
S 05/09/19 <0.34 <0.13 <0.20 <0.20 <0.20 1.9
S 06/07/18 0.81 <0.13 <0.20 <0.20 0.22 <0.27
S 03/20/18 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
Indoor-S 12/05/17 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
Indoor-S 08/10/17 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27
47.20 92.9 ------0.47 2.99
*VOC s - V olatil e O rganic Compoy und s.
Values in bold indicate concentrations above
VISL = US EPA May 2024 Commercial, Indoor Vapor Intrusion Screening Level, THQ=1 (ug/m3), Target Risk Level of 1E-06. VISL online calculator used to
generate these VISLs:
https://www.epa.gov/vaporintrusion/vapor-intrusion-screening-level-calculator
NS: Not Sampled
Suite #52
Ulta Beauty
Suite #56
Smith's Food and
Drug
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Indoor-GN 3/22/17 <1.0 1.5 0.7 <0.38 0.9 <1.1 7500 <0.47 2.4 510 <0.59 2,400 <0.53 2.1 <0.44 <0.61 <0.94 2.3 140 5 <0.73 15 0.6 420 1.3 5.1 1.3 <1.3 <1.5 <1.5 <1.5 <1.8 1.8
Indoor-GN 12/9/16 <1.0 0.9 0.8 <1.0 1.1 <1.1 950 <0.47 1.5 150 <0.59 4,300 19 2.7 <0.44 <0.61 <0.94 3.2 31 12 <0.73 27 0.7 86 1.7 6.4 1.9 0.96 1.3 1.3 2.7 <0.90 <1.8
Indoor-GN 10/13/16 <1.0 1.8 <0.31 <0.38 1.3 <1.1 5500 <0.47 <0.52 36 <0.59 700 25 2.8 <0.44 <0.61 <0.94 1.3 2.3 10 <0.73 6.4 <0.61 74 1.1 3.8 1.2 <0.64 <0.74 <0.74 1.0 <0.90 <1.8
Indoor-GN 6/29/16 1.0 1.3 1.2 <0.38 1.1 <1.1 12000 <0.47 2.8 92 <0.59 960 10 3.5 <0.44 <0.61 <0.94 0.61 1.2 3.5 <0.73 14 1.2 34 0.75 2.0 <0.65 1.2 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-GN 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 8600 <4.7 <5.2 83 <5.9 750 190 <7.3 <4.4 <6.1 <9.4 <4.8 9.3 <8.1 <7.3 28 <6.1 310 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-GN 12/2/15 <10 <7.4 <3.1 <3.8 <8.4 <11 12000 <4.7 <5.2 62 <5.9 460 23 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 47 <6.5 7.9 <6.5 <6.4 <4.7 <7.4 <7.4 <9.0 <18
Indoor-GN 8/14/15 1.5 3.2 1.7 <0.38 1.7 2.7 1200 0.54 1.8 190 <0.59 520 <0.53 2.80 <0.44 <0.61 <0.94 1.5 1.9 7.9 <0.73 3.6 <0.61 67 1.3 3.3 1.1 2.0 <0.74 <0.74 1.1 <0.90 <1.8
Indoor-GN 5/7/15 1.3 3.4 1.7 <0.38 4.3 2.5 7800 <0.47 6.5 150 <0.59 620 190 <0.73 <0.44 <0.61 <0.94 0.9 6.5 1.3 <0.73 4.5 1.7 260 1.6 4.6 1.5 1.7 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-GN 2/5/15 1.7 2.1 1.1 <0.38 1.3 <1.1 660 <0.47 2.7 91 <0.59 530 110 0.95 <0.44 <0.20 <0.94 1.2 8.6 <0.81 <0.73 4.2 <0.61 200 1.1 3.5 1.1 1.2 <0.74 <0.74 1.0 <0.90 <1.8
Indoor-GN 9/9/14 2.5 2.7 1.3 <0.38 1.6 <0.11 6700 <0.47 3.4 81 <0.59 410 10 1.10 <0.44 <0.61 <0.94 1.3 2.5 <0.81 <0.73 3.8 1.1 29 1.6 5.1 1.7 1.6 <0.74 <0.74 1.8 <0.90 <1.8
Indoor-GN 5/29/14 1.5 2.6 1.2 <0.38 1.0 <1.1 4400 <0.47 4.8 51 <0.59 450 85 <0.73 <0.44 <0.61 <0.94 19 51 <0.81 <0.73 37 <0.61 72 3.7 17 4.7 <0.64 1.0 0.84 3.7 <0.90 <1.8
Indoor-GN 2/11/14 420 <7.4 <3.1 <3.8 <8.4 <11 14000 <4.7 5.4 63 <5.9 330 160 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 260 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-GN 9/3/13 1700 2.2 1.1 <0.38 1.7 <1.1 12000 0.82 1.6 80 <0.59 890 2.4 <0.73 2.00 <0.61 <0.94 0.64 <0.52 <0.81 <0.73 7.5 <0.61 28 0.76 2.0 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
DUP-1 3/22/17 <1.0 2.3 1.2 <0.38 1.2 <1.1 760 <0.47 2.1 11 <0.59 <1.1 15 <0.73 <0.44 <0.61 <0.94 <0.48 210 7.8 <0.73 18 <0.61 460 <0.65 1.9 <0.65 <1.3 <1.5 <1.5 <1.5 <1.8 <1.8
Indoor-DC 3/22/17 <1.0 2.6 1.1 <0.38 1.3 <1.1 930 <0.47 1.7 13 <0.59 <1.1 18 <0.73 <0.44 <0.61 <0.94 <0.48 240 4.3 <0.73 23 <0.61 570 0.66 2.6 0.67 <1.3 <1.5 <1.5 <1.5 <1.8 <1.8
DUP-1 12/9/16 1.4 2.5 1.3 0.38 1.9 <1.1 1000 <0.47 3.2 20 <0.59 86 25 <0.73 <0.44 <0.61 <0.94 1.9 63 19 <0.73 31 0.9 150 0.98 4.2 1.6 0.9 2.2 2.6 5.1 <0.90 <1.8
Indoor-DC 12/9/16 1.4 2.6 1.5 0.39 2.7 1.5 1100 <0.47 3.5 20 <0.59 94 25 0.89 0.52 0.69 0.95 2.6 67 22 <0.73 31 1.3 160 1.5 5.7 2.2 1.4 3.0 3.3 6.2 1.1 <1.8
DUP-1 10/13/16 <1.0 2.5 1.0 <0.38 1.9 <1.1 2900 <0.47 1.5 51 <0.59 140 130 1.1 <0.44 <0.61 <0.94 1.5 33 35 <0.73 23 1.6 240 1.9 6.2 2.1 2.3 <0.74 0.9 2.5 <0.90 2.2
Indoor-DC 10/13/16 <1.0 2.2 0.9 <1.0 1.8 <1.1 3300 <0.47 1.2 60 <0.59 160 150 1.2 <0.44 <0.61 <0.94 1.5 40 46 <0.73 27 1.7 300 2.0 6.7 2.2 2.4 <0.74 0.9 2.5 <0.90 2.5
DUP-1 6/29/16 1.3 2.8 1.7 <0.38 1.4 <1.1 240 0.60 12 7.2 <0.59 34 67 <0.34 <0.44 <0.61 <0.94 0.58 8.1 9.7 <0.73 34 1.7 120 0.98 2.6 0.90 1.9 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-DC 6/29/16 1.2 2.6 1.9 <0.38 1.2 <1.1 510 <0.47 8.9 7.3 <0.59 35 62 <0.73 <0.44 <0.61 <0.94 <0.48 6.4 8.6 <0.73 27 1.7 130 0.92 2.4 0.85 2.0 <0.74 <0.74 0.90 <0.90 <1.8
DUP-1 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 1200 <4.7 5.9 63 <5.9 84 570 <7.3 <4.4 <6.1 <9.4 <4.8 24 <8.1 <7.3 36 <6.1 830 <6.5 7.4 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-DC 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 960 <4.7 6.1 14 <5.9 82 640 <7.3 <4.4 <6.1 <9.4 <4.8 25 <8.1 <7.3 19 <6.1 900 <6.5 6.8 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
DUP-1 12/2/15 <1.0 2.1 1.0 <0.38 1.1 <1.1 510 <0.47 0.96 12 <0.59 31 54 <0.73 0.53 <0.61 <0.94 1.5 10 4.9 <0.73 2.8 <0.61 73 0.87 3.9 1.3 <0.64 <0.74 <0.74 1.3 <0.90 <1.8
Indoor-DC 12/2/15 1.3 2.2 0.96 <0.38 1.2 <1.1 890 <0.47 0.96 17 <0.59 58 55 <0.73 0.86 <0.61 <0.94 1.8 12 8.1 <0.73 3.2 <0.61 75 1.1 4.7 1.6 0.73 <0.74 <0.74 1.7 <0.90 <1.8
DC 8/14/15 2.0 3.2 1.3 <0.38 1.2 <1.1 540 <0.47 2.4 15 <0.59 61 13 <0.73 <0.44 0.63 <0.94 0.61 1.4 26.0 <0.73 4.3 <0.61 28 1.60 3.6 1.30 3.10 <0.74 <0.74 1.6 <0.90 <1.8
OC DUP 8/14/15 1.5 3.5 1.6 <0.38 1.3 <1.1 310 <0.47 3.7 9.6 <0.59 36 19 <0.73 <0.44 <0.67 <0.94 0.65 <0.52 30.0 <0.73 5.1 <0.61 30 1.60 3.3 1.20 3.20 <0.74 <0.74 1.3 <0.90 <1.8
Indoor-DC 5/7/15 1.4 3.2 1.3 <0.38 1.8 1.2 780 0.94 11.0 44 <0.59 61 540 <0.73 <0.44 1.20 <0.94 0.6 16 2.8 <0.73 7.8 0.8 600 2.10 6.3 2.00 2.40 <0.74 <0.74 0.8 <0.90 <1.8
DUP-DC 5/7/15 1.3 2.8 1.1 <0.38 1.5 <1.1 640 <0.47 7.9 30 <0.59 51 430 <0.73 <0.44 <0.61 <0.94 0.6 12 1.8 <0.73 6.4 <0.61 540 1.80 5.6 1.80 2.10 <0.74 <0.74 0.8 <0.90 <1.8
Indoor-DC 2/5/15 1.4 3.0 1.3 <0.38 1.8 <1.1 370 <0.47 3.0 26 <0.59 <0.54 140 0.39 <0.44 <0.20 <0.94 1.1 15 <0.81 <0.73 3.0 <0.61 260 0.82 3.4 0.90 0.89 <0.74 <0.74 0.83 <0.90 <1.8
Indoor-DC 9/9/14 2.3 2.9 1.3 <0.38 1.4 <1.1 130 0.52 1.2 5.7 <0.59 16 10 <0.73 <0.44 <0.61 <0.94 0.70 1.6 <0.81 <0.73 5.5 2.1 15 4.5 20 2.3 2.0 2.9 0.85 4.6 <0.90 <1.8
DUP-1 9/9/14 2.0 2.5 1.5 <0.38 1.2 <1.1 260 <0.47 3.7 5.4 <0.59 14 11 <0.73 <0.44 <0.61 <0.94 1.10 2.4 <0.81 <0.73 5.4 1.9 17 1.5 5 1.6 1.9 <0.74 <0.74 2.2 <0.90 <1.8
Indoor-DC 5/29/14 30 3.5 1.3 <0.38 1.3 <1.1 640 5.1 6.7 9.4 <0.59 35 14 1.00 <0.44 <0.61 <0.94 1.1 4.3 <0.81 <0.73 3.0 <0.61 56 0.88 4.2 0.96 1.1 <0.74 <0.74 1.9 <0.90 <1.8
DUP-1 5/29/14 30 4.2 <0.31 <0.38 1.5 <1.1 470 <0.47 9.5 <0.44 <0.59 56 16 <0.73 <0.44 <0.61 <0.94 1.2 4.7 <0.81 <0.73 4.1 <0.61 57 1.70 5.4 1.3 1.3 <0.74 <0.74 2.2 <0.90 <1.8
Indoor-DC 2/11/14 1200 2.8 1.1 <0.38 2.0 <1.1 92 <0.47 0.80 1.5 <0.59 1.0 18 <0.73 <0.44 <0.61 <0.94 0.55 1.3 <0.81 <0.73 0.66 <0.61 35 <0.65 0.82 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
DUP-1 2/11/14 1400 3.3 1.2 <0.38 2.1 <1.1 110 2.1 1.1 <0.44 <0.59 <0.54 20 <0.73 <0.44 <0.61 <0.94 0.53 <0.52 <0.81 <0.73 0.64 <0.61 37 <0.65 0.81 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-DC 8/26/13 4600 --------------------------------0.60 ------------------------------
Indoor-SR 3/22/17 <1.0 2.1 1.0 <0.38 1.2 <1.1 6,600 <0.47 2.6 79 <0.59 NA 210 <0.73 <0.44 <0.61 <0.94 0.77 3,200 3.5 <0.73 310 <0.61 5,000 2.2 5.2 1.1 <1.3 <1.5 <1.5 1.5 <1.8 8.9
Indoor-SR 12/9/16 <1.0 2.4 1.3 <0.38 1.9 <1.1 970 <0.47 26 140 <0.59 41 190 <0.73 <0.44 <0.61 <0.94 1.5 700 23 <0.73 370 2.0 450 2.3 8 2.5 3 1.50 2.4 5.6 <0.90 2.1
Indoor-SR 10/13/16 <1.0 2.4 1.2 <0.38 1.3 <1.1 960 15.00 7 150 <0.59 110 660 <0.73 <0.44 <0.61 <0.94 5.5 180 26 <0.73 73 <0.61 990 4 14 4.4 2 0.94 1.8 4.6 <0.90 9
Indoor-SR 6/29/16 1.8 2.0 1.2 <0.38 0.94 <1.1 3,900 <0.47 190 120 <0.59 950 <0.53 <0.73 <0.44 <0.61 <0.94 1.1 300 17 <0.73 1,500 <0.60 8,900 10 33 8.9 24 0.98 2.0 6.1 2.8 99
Indoor-SR 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 2,400 <4.7 18 78 <5.9 180 2100 <7.3 <4.4 <6.1 <9.4 <4.8 120 <8.1 <7.3 110 <6.1 2400 <6.5 20 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-SR 12/2/15 <10 <7.4 <3.1 <3.8 <8.4 <11 4,600 <4.7 31 120 <5.9 1100 6200 <7.3 <4.4 <6.1 <9.4 <4.8 170 <8.1 <7.3 52 <6.1 6100 16 57 15 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-SR 8/14/15 2.7 4.1 1.9 <0.38 1.4 <1.1 1,200 <0.47 140 270 <0.59 630 1200.00 <0.73 <0.44 <0.61 <0.94 0.94 120 48.00 <0.73 130 <0.61 620 21 68 18 6.0 <0.74 0.75 2.5 <0.90 <1.8
Indoor-SR 5/7/15 1.2 2.4 1.4 <0.38 1.9 <1.1 4,700 1.20 84 340 <0.59 440 <0.53 <0.73 <0.44 3.50 <0.94 1.10 130 1.10 <0.73 45 1.4 3300 9 32 9 8.6 <0.74 <0.74 1.8 <0.90 9.8
Indoor-SR 2/5/15 2.5 2.4 1.2 <0.38 1.5 <1.1 800 <0.47 71 480 <0.59 430 1300.00 0.31 <0.44 <0.20 <0.94 1.80 320 <0.81 <0.73 51 4.5 700 12 42 11 3.0 1.4 2.40 8.0 14 19
Indoor-SR 9/10/14 2.5 2.4 1.2 <0.38 1.3 <1.1 1,200 <0.47 5.6 270 <0.59 16 1200.00 <0.73 <0.44 <0.61 <0.94 1.40 260 <0.81 <0.73 33 3.0 2600 5.3 20 5.5 1.3 0.83 2.20 5.7 <0.90 <1.8
Indoor-SR 5/30/14 16 3.0 1.5 <0.38 1.2 <1.1 1200 <0.47 13 120 <0.59 62 860.00 <0.73 <0.44 <0.61 <0.94 4.70 80 <0.81 <0.73 42 <0.61 1300 15 63 21 2.7 3.5 4.00 15 <0.90 8.0
Indoor-SR 2/11/14 400 2.7 1.1 <0.38 2.0 <1.1 3400 1.1 24 180 <0.59 26 1500 <0.73 <0.44 <0.61 <0.94 0.85 89 <0.81 <0.73 56 <0.61 2800 6.7 27 7.1 2.0 0.93 2.40 6.3 <0.90 29
Indoor-SR 9/3/13 2500 2.6 1.3 <0.38 1.4 <1.1 750 <0.47 18 44 <0.59 13 440 <0.73 <0.44 <0.61 <0.94 <0.48 35 0.93 <0.73 8.3 <0.61 620 1.7 8.8 1.9 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Suite #36
Family Shoe Repair
Suite #34
Former Ft. Union
Dry Cleaners
Table 2
Historical VOC Indoor Air Analytical
Results
The Shops at Fort Union
Midvale, Utah
VOCs* - EPA Method TO-15 Micrograms per cubic-meter (µg/m3)
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Table 2
Historical VOC Indoor Air
Analytical Results
The Shops at Fort Union
Midvale, Utah
VOCs* - EPA Method TO-15 Micrograms per cubic-meter (µg/m3)
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Indoor-AT 3/22/17 <1.0 2.6 1.2 <0.38 1.4 <1.1 4,300 <0.47 5.3 8.7 <0.59 <1.1 15 <0.73 <0.44 <0.61 <0.94 1.8 120 2,700 <0.73 45 13 360 2.9 12 3.4 6.2 <1.5 <1.5 2.1 <1.8 <1.8
Indoor-AT 12/9/16 <1.0 2.7 <0.31 <0.38 2.7 <1.1 800 <0.47 4.1 5.1 <0.59 35 5.8 <0.73 0.45 <0.61 <0.94 2.9 8.7 2,000 <0.73 9 21 35 2.0 7.0 2.7 3.7 2.6 2.8 5.5 <0.90 <1.8
Indoor-AT 10/13/16 <1.0 2.4 <0.31 <0.38 1.5 <1.1 170 <0.47 2.2 <0.44 <0.59 16 15 <0.73 <0.44 <0.61 <0.94 1.6 2.0 2,600 <0.73 23 19 33 1.1 4.3 1.5 1.8 <0.74 <0.74 1.3 <0.90 <1.8
Indoor-AT 6/29/16 <1.0 2.1 1.8 <0.38 1.5 <1.1 1,000 <0.47 16 2.1 <0.59 54 2.5 <0.73 <0.44 <0.61 <0.94 <0.48 2.0 120 <0.73 44 48 9.4 <0.65 2.0 0.80 3.2 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-AT 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 3,000 <4.7 5.5 9.0 <5.9 120 610 <7.3 <4.4 <6.1 <9.4 <4.8 20 26 <7.3 63 90 740 <6.5 7.1 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-AT 12/2/12 <1.0 2.1 1.1 <0.38 1.1 <1.1 650 <0.47 0.76 2.3 <0.59 22 3.5 <0.73 <0.44 <0.61 <0.94 1.2 <0.52 66 <0.73 2.8 7.2 14 0.88 4.1 1.6 1.7 <0.74 <0.74 2.1 <0.90 <1.8
Indoor-AT 8/14/15 2.0 3.7 1.9 <0.38 1.2 <1.1 640 <0.47 1.8 6.8 <0.59 15 14.0 <0.73 <0.44 1.70 <0.94 0.65 <0.52 860.0 <0.73 12 2.3 34 2.3 4.8 1.8 11.0 <0.74 <0.74 1.7 <0.90 <1.8
Indoor-AT 5/7/15 1.3 2.4 1.2 <0.38 1.4 <1.1 420 4.2 8.6 7.7 <0.59 <0.54 20.0 <0.73 <0.44 1.80 <0.94 0.65 1.9 50.0 1.50 4 3.7 40 1.5 3.7 1.4 5.5 <0.74 <0.74 0.9 <0.90 <1.8
Indoor-AT 2/5/15 6.4 2.3 1.4 <0.38 1.5 <1.1 470 <0.47 1.9 5.2 <0.59 22 9.3 1.0 <0.44 <0.20 <0.94 1.70 1.8 8.6 <0.73 16 4.9 98 2.2 5.6 2.0 6.0 <0.74 <0.74 2.1 <0.90 <1.8
Indoor-AT 9/9/14 2.3 2.7 1.7 <0.38 1.3 <1.1 2,600 1.4 1.9 4.8 <0.59 160 3.7 <0.73 <0.44 1.10 <0.94 0.81 1.4 <0.81 <0.73 180 130 26 2.1 5.2 1.9 8.4 <0.74 <0.74 2.0 <0.90 <1.8
Indoor-AT 5/29/14 7.2 2.7 1.5 <0.38 1.6 <1.1 1400 6.3 4.7 10 <0.59 31 18 <0.73 <0.44 1.70 <0.94 1.90 5.8 <0.81 1.9 20 <0.61 75 2.0 5.7 1.7 6.7 <0.74 <0.74 1.2 <0.90 <1.8
Indoor-AT 2/12/14 200 3.5 1.7 <0.38 2.1 <1.1 1700 <0.47 2.5 12.0 <0.59 18 28 <0.73 <0.44 <0.61 <0.94 0.88 4.3 <0.81 <0.73 11 <0.61 62 1.2 4.0 1.3 3.0 <0.74 <0.74 1.7 <0.90 1.9
Indoor-AT 9/3/13 2800 2.9 1.9 <0.38 1.5 <1.1 410 <0.47 7.7 8.3 <0.59 11 95 <0.73 <0.44 4.20 <0.94 1.00 5.0 <0.81 <0.73 24 <0.61 160 1.5 5.6 1.8 7.8 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-MC 3/22/17 1.6 2.8 1.2 <0.38 1.4 <1.1 780 <0.47 3.9 4.0 <0.59 <1.1 4.0 0.82 <0.44 <0.61 <0.94 1.5 23 38 <0.73 3.9 0.70 110 1.7 7.4 2.1 3.1 <1.5 <1.5 1.9 <1.8 <1.8
Indoor-MC 12/9/16 <1.0 3.0 1.5 <0.38 1.5 <1.1 600 <0.47 2.2 3.5 <0.59 19 4.4 <0.73 <0.44 <0.61 <0.94 4.3 2.3 4 <0.73 2.2 <0.61 38 2.0 7.1 2.4 1.2 0.92 0.9 2.4 <0.90 <1.8
Indoor-MC 10/13/16 <1.0 <0.74 <0.31 <0.38 1.3 <1.1 780 <0.47 1.0 3.6 <0.59 11 9.1 <0.73 <0.44 <0.61 <0.94 1.6 <0.52 19 <0.73 4.6 0.66 32 1.5 4.8 1.7 1.3 <0.74 <0.74 1.4 <0.90 <1.8
Indoor-MC 6/29/16 <1.0 2.9 1.8 <0.38 1.5 <1.1 100 <0.47 2.0 2.6 <0.59 7.4 1.9 <0.73 <0.44 0.65 <0.94 0.66 1.4 3.0 <0.73 3.2 0.90 35 1.7 4.8 1.7 2.6 <0.74 <0.74 1.6 <0.90 <1.8
Indoor-MC 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 250 <4.7 <5.2 <4.4 <5.9 16 <5.3 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 7.0 <6.1 170 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-MC 12/2/15 <1.0 2.2 1.1 <0.38 1.1 <1.1 530 <0.47 0.55 2.2 <0.59 7.7 3.9 <0.73 1.7 <0.61 <0.94 1.7 0.92 2.2 <0.73 1.1 <0.61 34 1.1 4.6 1.7 0.96 1.6 1.1 5.0 <0.90 <1.8
Indoor-MC 8/14/15 <1.0 3.7 1.8 <0.38 1.3 <1.1 150 0.70 1.4 4.1 <0.59 19.0 8.2 >0.73 <0.48 0.81 <0.94 0.65 1.7 5.6 <0.73 3.9 <0.61 34 1.6 3.3 1.2 5.9 <0.74 <0.74 1.2 <0.90 <1.8
Indoor-MC 5/7/15 <1.0 2.7 1.1 <0.38 1.6 <1.1 180 <0.47 1.4 3.7 <0.59 10.0 22.0 >0.73 <0.44 <0.61 <0.94 0.89 2.7 1.5 <0.73 2.5 1.10 56 1.7 4.0 1.5 6.2 <0.74 <0.74 1.0 <0.90 <1.8
Indoor-MC 2/5/15 1.5 2.3 1.3 <0.38 1.3 <1.1 76 <0.47 1.5 2.0 <0.59 9.7 3.7 0.54 <0.44 <0.20 <0.94 1.80 1.9 <0.81 <0.73 2.2 <0.61 17 <0.65 <0.65 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-MC 9/9/14 4.5 2.6 1.6 <0.38 1.3 <1.1 58 <0.47 2.3 4.6 <0.59 16 2.0 >0.73 <0.44 <0.61 <0.94 0.93 3.6 <0.81 <0.73 3.1 0.77 30 1.4 3.7 1.3 2.3 <0.74 <0.74 1.6 <0.90 <1.8
Indoor-MC 5/29/14 2.0 4.1 1.3 <0.38 1.7 <1.1 73 <0.47 17 4.4 <0.59 5.4 26 <0.73 <0.44 <0.61 <0.94 5.20 12 <0.81 <0.73 7.9 <0.61 33 0.88 2.0 <0.65 1.3 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-MC 2/11/14 36 2.8 1.2 <0.38 2.1 <1.1 250 3.2 1.4 4.5 <0.59 5.5 20 <0.73 <0.44 <0.61 <0.94 1.60 2.6 <0.81 <0.73 1.9 <0.61 63 0.97 3.6 1.2 0.91 <0.74 <0.74 1.4 <0.90 <1.8
Indoor-MC 9/3/13 2000 2.8 1.6 <0.38 1.5 <1.1 94 <0.47 1.1 3.4 <0.59 5.5 8.4 <0.73 <0.44 <0.61 <0.94 0.50 2.2 <0.81 <0.73 0.88 <0.61 41 <0.65 1.7 0.67 0.75 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-MWJP 3/22/17 <1.0 4.0 1.3 <0.38 1.5 <1.1 460 <0.47 7.0 7.3 <0.59 <1.1 9.1 <0.73 <0.44 0.65 <0.94 0.90 34 24 0.73 5.0 1.2 160 6.7 29 8.0 5.9 <1.5 <1.5 2.8 <1.8 <1.8
Indoor-MW 6/29/16 <1.0 2.7 1.8 0.93 1.4 <1.1 82 <0.47 2.9 1.8 <0.59 3.8 1.6 <0.73 <0.44 0.93 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 3.1 <0.65 <0.65 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-MW 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 280 <4.7 <5.2 <4.4 <5.9 13 39 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 8.1 <7.3 18 <6.1 69 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-MW 12/2/15 <1.0 2.4 1.1 <0.38 1.3 <1.1 160 <0.47 0.96 3.0 <0.59 14 4.2 <0.73 <0.44 <0.61 <0.94 1.6 0.56 4.5 <0.73 2.0 0.79 13 2.1 14 4.9 0.68 1.9 2.2 6.5 <0.90 <1.8
Indoor-MW 8/14/15 33 3.0 2.1 1.30 1.2 <1.1 92 <0.47 2.9 4.5 <0.59 23 1.7 1.3 <0.44 1.60 <0.94 0.56 1.1 1 <0.73 3.2 <0.61 9 1.0 2.2 0.91 2.7 <0.74 <0.74 1.8 <0.90 <1.8
Indoor-MW 5/7/15 <1.0 2.7 1.7 0.55 1.6 <1.1 160 0.58 1.4 3.6 <0.59 22 5.2 1.1 0.70 0.96 <0.94 0.63 0.8 1 <0.73 3.4 <0.61 13 1.2 2.8 1.10 3.0 <0.74 <0.74 0.9 <0.90 <1.8
Indoor-MW 2/5/15 1.1 2.6 1.5 <0.38 1.4 <1.1 130 <0.47 1.3 3.2 <0.59 <0.54 3.1 1.5 <0.44 <0.20 <0.94 1.50 1.2 <0.81 <0.73 3.2 <0.61 12 1.0 2.8 0.99 2.7 <0.74 <0.74 1.1 <0.90 <1.8
Indoor-MW 9/9/14 <1.0 2.3 1.6 <0.38 1.2 <1.1 31 <0.47 1.2 3.7 <0.59 12 1.1 <0.73 <0.44 <0.61 <0.94 0.58 0.78 <0.81 <0.73 1.7 <0.61 4 <0.65 1.5 <0.65 1.8 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-MW 5/29/14 1.9 2.8 2.4 <0.38 <0.84 <1.1 26 <0.47 <0.52 4.0 <0.59 16 240 <0.73 <0.44 <0.61 <0.94 37.00 120 <0.81 <0.73 73 <0.61 130 8.4 26 5.9 1.7 <0.74 <0.74 1.5 <0.90 <1.8
Indoor-MW 2/11/14 56 3.0 1.4 <0.38 2.4 <1.1 700 3.9 2.2 9.6 <0.59 29 30 <0.73 <0.44 <0.61 <0.94 1.60 2.3 <0.81 <0.73 3.2 <0.61 60 0.93 3.4 1.2 2.4 <0.74 <0.74 1.4 <0.90 <1.8
Indoor-MW 9/3/13 1100 2.9 1.5 0.42 1.5 <1.1 94 <0.47 0.77 2.8 <0.59 5.8 2.2 <0.73 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 5 <0.65 1.3 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-FS 3/22/17 <1.0 3.5 1.5 <0.38 1.6 <1.1 460 <0.47 6.6 9.3 <0.59 <1.1 5.5 3.5 <0.44 0.89 <0.94 1.9 25 8.6 <0.73 4.2 0.75 150 4.6 18 5.0 4.0 <1.5 <1.5 3.4 <1.8 <1.8
Indoor-FS 12/9/16 <1.0 2.3 <0.31 <0.38 2.2 <1.1 650 <0.47 3.2 4.0 <0.59 31 3.9 2.9 0.46 <0.61 <0.94 3.5 3.30 13 <0.73 5.8 0.73 19 1.5 5.6 2.2 1.4 3.3 3.5 7.3 <0.90 <1.8
Indoor-FS 10/13/16 <1.0 1.8 <0.31 <0.38 1.6 <1.1 430 <0.47 2.1 3.0 <0.59 44 10 6.0 <0.44 <0.61 <0.94 1.8 2.10 9.7 <0.73 14 <0.61 28.0 2.0 6.0 2.2 1.9 0.8 0.90 2.3 <0.90 <1.8
Indoor-FS 6/29/16 <1.0 2.5 1.7 0.65 1.5 <1.1 130 <0.47 5.1 3 <0.59 12 1.7 <0.73 0.49 0.93 <0.94 0.89 <0.52 <0.81 <0.73 3.6 <0.61 9.7 1.2 2.8 0.97 1.5 <0.74 <0.74 0.82 <0.90 <1.8
Indoor-FS 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 330 <4.7 <5.2 17 <5.9 20 83 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 110 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-FS 12/2/15 <10 2.3 <0.31 <0.38 1.3 <1.1 440 <0.47 0.84 3.7 <0.59 24 5.2 <0.73 1.7 <0.61 <0.94 1.6 0.89 6.2 <0.73 2.4 1.1 19 1.1 4.8 1.7 1.1 <0.74 0.78 2.8 <0.90 <1.8
Indoor-FS 8/14/15 <1.0 2.7 1.5 0.81 1.1 <1.1 110 1.70 2.5 4.0 <0.59 42 2.6 <0.73 0.45 1.40 <0.94 1.6 1.4 <0.81 <0.73 4.7 <0.61 17 1.6 4.0 1.4 2.3 <0.74 <0.74 1.4 <0.90 <1.8
Indoor-FS 5/7/15 <1.0 1.2 1.1 <0.38 1.5 <1.1 240 <0.47 1.7 4.0 <0.59 24 3.5 0.8 0.55 0.90 <0.94 1.1 1.1 1 <0.73 5.1 <0.61 13 1.4 3.5 1.4 2.2 <0.74 <0.74 0.9 <0.90 <1.8
Indoor-FS 2/5/15 1.1 2.6 1.6 <0.38 1.6 1.2 240 <0.47 1.9 4.3 <0.59 <0.54 3.9 3.3 <0.44 <0.20 <0.94 2.0 1.6 <0.81 <0.73 5.7 <0.61 19 1.9 3.8 1.3 2.4 <0.74 <0.74 1.6 <0.90 <1.8
Indoor-FS 9/9/14 <1.0 2.5 1.8 <0.38 1.4 <1.1 75 <0.47 1.6 7.8 <0.59 27 1.5 <0.73 0.55 0.87 <0.94 0.83 1.3 <0.81 <0.73 5.6 <0.61 9 1.5 5.4 1.5 2.2 <0.74 <0.74 1.9 <0.90 <1.8
Indoor-FS 5/29/14 2.3 <0.74 6.9 0.61 1.0 <1.1 230 <0.47 6.6 0.63 <0.59 22 90 <0.73 <0.44 <0.61 <0.94 19 40 <0.81 <0.73 29 <0.61 72 2.3 8.9 1.5 1.3 <0.74 <0.74 0.87 <0.90 <1.8
Indoor-FS 2/11/14 49 3.1 1.2 <0.38 2.6 <1.1 1300 <0.47 2.8 15.0 <0.59 34 20 <0.73 <0.44 <0.61 <0.94 1.6 2.1 <0.81 <0.73 4.0 <0.61 48 0.98 3.3 1.1 1.4 <0.74 <0.74 1.4 <0.90 <1.8
Indoor-FS 9/3/13 1900 2.8 1.6 <0.38 0.88 <1.1 110 <0.47 1.0 3.9 <0.59 8.3 5.9 2.40 <0.44 1.30 <0.94 0.58 <0.52 <0.81 <0.73 0.99 2.3 14 <0.65 2.1 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Suite #44
Fantastic Sam's
Suite #42
Melty Way
Suite #40
The Mail Center
Suite #38
It's All About Time
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Table 2
Historical VOC Indoor Air
Analytical Results
The Shops at Fort Union
Midvale, Utah
VOCs* - EPA Method TO-15 Micrograms per cubic-meter (µg/m3)
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Indoor-SB 3/22/17 <1.0 4.0 1.3 <0.38 1.4 <1.1 830 <0.47 4.3 34 <0.59 150 <0.53 0.77 <0.44 0.92 <0.94 1.1 18 1.9 <0.73 16 <0.61 160 2.8 8.6 2.7 3.2 <1.5 <1.5 1.9 <1.8 <1.8
Indoor-SB 12/9/16 <1.0 2.9 <0.31 <0.38 1.9 <1.1 660 <0.47 3.6 3.1 <0.59 110 3.4 0.78 0.54 <0.61 <0.94 3.1 3.1 5.8 <0.73 22 <0.61 26 2.1 6.2 2.4 1.3 4.6 4.4 9.3 <0.90 <1.8
Indoor-SB 10/13/16 <1.0 2.9 <0.31 <0.38 1.7 <1.1 510 <0.47 2.8 <0.44 <0.59 98 7.8 1.1 <0.44 <0.61 <0.94 2.8 2.4 3.3 <0.73 31 <0.61 29 2.3 6.8 2.3 2.1 <0.74 <0.74 1.8 <0.90 <1.8
Indoor-SB 6/29/16 <1.0 2.4 1.6 <0.38 1.3 <1.1 460 0.84 3.5 2.1 <0.59 46 1.3 1.0 <0.44 <0.61 <0.94 0.87 <0.52 <0.81 <0.73 11 0.65 10 0.94 2.6 0.93 1.6 <0.74 <0.74 1.3 <0.90 <1.8
Indoor-SB 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 740 <4.7 7.2 43 <5.9 77 <5.3 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 16 <6.1 92 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-SB 12/2/15 <1.0 1.7 1.1 <0.38 1.3 <1.1 830 <0.47 1.5 2.6 <0.59 82 3.9 1.7 0.74 <0.61 <0.94 2.0 1.2 3.5 <0.73 8.8 0.83 20 2.0 7.6 2.0 1.5 1.3 1.6 6.2 <0.90 <1.8
Indoor-SB 8/14/15 <1.0 3.2 <0.31 <0.38 1.3 <1.1 410 <0.47 3.0 5 <0.59 150 <0.53 1.30 0.93 1.00 <0.94 0.56 <0.52 0.96 <0.73 14 <0.61 20 1.6 3.7 1.2 2.9 <0.74 <0.74 1.1 <0.90 <1.8
Indoor-SB 5/7/15 <1.0 2.4 1.3 <0.38 1.9 <1.1 680 4.30 26.0 5 <0.59 110 2.7 2.20 2.20 1.30 <0.94 0.9 1.7 <0.81 <0.73 16 1.00 18 2.3 6.0 2.7 2.9 <0.74 <0.74 1.0 <0.90 <1.8
Indoor-SB 2/5/15 5.0 2.4 1.4 <0.38 1.4 <1.1 410 <0.47 4.8 11 <0.59 210 2.8 7.70 1.50 <0.20 <0.94 1.7 1.9 <0.81 <0.73 24 <0.61 22 1.9 4.3 1.6 2.5 <0.74 <0.74 1.3 <0.90 <1.8
Indoor-SB 9/9/14 <1.0 2.5 1.6 <0.38 1.3 <1.1 160 0.47 3.0 19 <0.59 26 1.3 1.30 0.97 <0.61 <0.94 0.84 1.2 <0.81 <0.74 13 0.61 9 1.7 4.6 1.2 2.2 <0.74 <0.74 1.5 <0.90 <1.8
Indoor-SB 5/29/14 1.7 3.3 1.2 <0.38 1.0 <1.1 580 <0.47 8.8 21 <0.59 54 110 <0.73 <0.44 <0.82 <0.94 23 59 <0.81 <0.73 59 <0.61 79 3.6 8.8 2.3 1.3 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-SB 2/11/14 21 3.0 1.4 <0.38 2.2 <1.1 11000 <0.47 3.1 26 <0.59 100 8.5 <0.73 1.90 <0.82 <0.94 1.8 2.2 <0.81 <0.73 9.9 <0.61 31 1.5 5.0 1.5 1.1 <0.74 <0.74 1.8 <0.90 <1.8
Indoor-SB 9/3/13 1300 2.8 1.5 0.59 1.5 <1.1 780 1.7 3.4 35 <0.59 74 7.4 0.79 1.00 1.10 <0.94 0.84 1.8 <0.81 <0.73 18 1.7 72 0.84 2.8 0.87 0.83 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-OM 5/7/15 <1.0 2.3 1.0 <0.38 1.4 <1.1 23 <0.47 1.3 1.1 <0.59 2.4 1.1 <0.73 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 1.4 <0.61 5 1.2 2.3 0.9 1.7 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-OM 2/5/15 <1.0 3.4 1.4 <0.38 2.3 2.4 46 <0.47 2.5 2.6 <0.59 <0.54 3.5 0.42 <0.44 <0.20 <0.94 1.4 2.0 <0.81 <0.73 4.2 <0.61 16 3.2 5.1 1.9 5.2 <0.74 <0.74 0.93 <0.90 <1.8
Indoor-OM 9/9/14 <1.0 2.1 1.4 <0.38 1.1 <1.1 39 0.54 6.7 4.3 <0.59 1.8 5.9 <0.73 <0.44 <0.61 <0.94 2.1 3.6 <0.81 <0.73 3.2 1.0 14 2.1 8.1 2.6 1.4 <0.74 <0.74 2.7 <0.90 <1.8
Indoor-OM 5/29/14 <1.0 2.5 0.96 <0.38 0.97 <1.1 48 <0.47 7.1 <0.44 <0.59 1.3 68 <0.73 <0.44 <0.61 <0.94 13 32 <0.81 <0.73 23 <0.61 43 1.3 5.1 1.2 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-OM 2/11/14 45 5.4 1.4 <0.38 3.8 1.7 260 34 5.7 4.5 <0.59 9.0 13 1.00 <0.44 1.40 <0.94 1.5 2.9 <0.81 6.1 3.8 <0.61 34 2.1 4.4 1.4 3.6 <0.74 <0.74 1.1 <0.90 <1.8
Indoor-OM 9/3/13 57 2.9 1.7 <0.38 1.4 <1.1 30 <0.47 2.8 1.7 1.7 1.5 0.91 3.30 <0.44 <0.61 <0.94 <0.48 1.2 2.6 <0.73 2.5 <0.61 3 <0.65 1.6 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-U 3/22/17 <1.0 2.0 1.3 <0.38 1.3 <1.1 79 <0.47 20 1.9 <0.59 <1.1 0.70 <0.73 <0.44 <0.61 <0.94 0.54 <0.52 <0.81 <0.73 <0.61 <0.61 4.4 <0.65 0.86 <0.65 <1.3 <1.5 <1.5 <1.5 <1.8 <1.8
Indoor-U 12/9/16 <1.0 2.9 <0.31 <0.38 2.6 <1.1 530 <0.47 52 3.4 <0.59 49 46.0 <0.73 2.9 <0.61 <0.94 75 8.4 <0.81 <0.73 17 <0.61 290 22 120 32 <0.64 15 16 43 <0.90 <1.8
Indoor-U 10/13/16 <1.0 2.9 <0.31 <0.38 1.8 <1.1 340 0.64 24 5.2 <0.59 1200 4.3 <0.73 0.99 <0.61 <0.94 2.2 0.91 <0.81 <0.73 8.8 <0.61 14 1.4 5.6 1.7 0.79 <0.74 <0.74 1.3 <0.90 <1.8
Indoor-U 6/29/16 <1.0 2.5 1.4 <0.38 1.6 <1.1 31 <0.47 9.5 1.7 <0.59 14 0.58 <0.73 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 2.3 <0.65 0.73 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8
Indoor-U 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 63 <4.7 13 <4.4 <5.9 8.6 <5.3 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 8.6 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18
Indoor-U 12/2/15 <1.0 2.3 1.2 <0.38 1.2 <1.1 83 <0.47 6.0 2.4 <0.59 19 1.4 <0.73 <0.44 <0.61 <0.94 1.1 <0.52 <0.81 <0.73 1.3 <0.61 8.5 0.98 4.2 1.5 0.68 <0.74 0.85 2.8 <0.90 <1.8
Indoor-U 8/14/15 <1.0 2.5 1.6 <0.38 1.2 <1.1 140 <0.47 10 4.5 <0.59 21.0 0.81 <0.73 <0.44 <0.61 <0.94 <0.48 0.62 <0.81 <0.73 0.7 1.0 6 <0.65 1.2 <0.65 <0.64 <0.74 <0.74 0.96 <0.90 <1.8
Indoor-U 5/7/15 <1.0 2.4 1.1 <0.38 1.4 <1.1 160 <0.47 9.7 3.5 <0.59 32.0 1.30 <0.73 <0.44 <0.61 <0.94 0.58 0.52 <0.81 <0.73 1.6 1.5 9 1.4 3.3 1.3 2 <0.74 <0.74 1.5 <0.90 <1.8
Indoor-U 2/5/15 3.7 2.5 1.3 <0.38 1.3 <1.1 80 <0.47 11 3.3 <0.59 <0.54 2.00 0.69 <0.44 <0.20 <0.94 1.3 1.2 <0.81 <0.73 2.1 0.88 10 1.5 3.5 1.3 2.2 <0.74 <0.74 1.9 <0.90 <1.8
Indoor-U 9/9/14 <1.0 2.1 1.5 <0.38 1.1 <1.1 30 0.49 7.1 1.8 <0.59 7.0 2.90 <0.73 <0.44 <0.61 <0.94 1.2 1.7 <0.81 <0.73 1.3 0.95 7 0.99 4.5 1.4 <0.64 <0.74 <0.74 2.1 <0.90 <1.8
Indoor-U 5/29/14 <1.0 2.8 1.3 <0.38 0.89 <1.1 44 <0.47 20 4.2 <0.59 17 64.00 <0.73 <0.44 <0.61 <0.94 12 28 <0.81 <0.73 17 <0.61 38 1.2 5.1 1.3 <0.64 <0.74 <0.74 1.0 <0.90 <1.8
Indoor-U 2/11/14 6.9 3.7 1.6 <0.38 2.4 <1.1 260 <0.47 19 <0.44 <0.59 18 <0.53 <0.73 <0.44 <0.61 <0.94 1.0 2.2 1.6 <0.73 1.4 <0.61 11 0.74 2.7 0.91 0.79 <0.74 <0.74 1.6 <0.90 <1.8
Indoor-U 8/8/13 <1.0 --------------------------------0.51 ------------------------------
Indoor-S 5/7/15 <1.0 2.0 1.7 <0.38 1.4 <1.1 29 <0.47 2.3 1.6 <0.59 9.2 0.98 <0.73 <0.44 1.90 <0.94 0.62 <0.52 <0.81 <0.73 0.86 0.63 4 <0.65 2 0.67 1.10 <0.74 <0.74 <0.74 1.9 1.9
Indoor-S 2/5/15 <1.0 2.4 1.5 <0.38 1.6 <1.1 57 <0.47 3.3 2.3 <0.59 <0.54 1.8 0.69 5.40 <0.20 <0.94 1.7 1.0 <0.81 <0.73 0.94 <0.61 21 0.93 3.9 1.2 0.88 <0.74 <0.74 2.0 3.7 3.5
Indoor-S 9/9/14 <1.0 3.0 2.0 <0.38 1.6 <1.1 38 0.51 5.4 1.7 <0.59 8.0 1.4 <0.73 <0.44 <0.73 <0.94 0.88 0.83 <0.81 <0.73 0.95 0.72 6 <0.65 2.8 0.97 0.90 0.84 0.82 3.1 4.1 <1.8
Indoor-S 5/29/14 <1.0 2.4 1.2 <0.38 1.3 <1.1 23 <0.47 3.6 2.8 <0.59 9.8 26 <0.73 <0.44 <0.61 <0.94 5.6 8.6 <0.81 <0.73 4.8 <0.61 12 <0.65 1.8 <0.65 <0.64 <0.74 <0.74 1.2 1.8 <1.8
Indoor-S 2/11/14 1.7 4.1 1.8 <0.38 3.0 <1.1 38 <0.47 1.3 <0.44 <0.59 3.0 1.0 <0.73 <0.44 <0.61 1.00 1.3 1.4 <0.81 <0.73 0.71 <0.61 5 0.82 4.8 0.85 <0.64 <0.74 <0.74 1.2 5.5 <1.8
Indoor-S 9/3/13 <1.0 2.9 1.6 <0.38 1.7 <1.1 34 <0.47 2.4 2.7 <0.59 7.5 0.71 0.91 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 2 <0.65 2.1 0.66 0.75 <0.74 <0.74 <0.74 <0.90 <1.8
47 440 390 2.80 3,100 130,000 140,000 3,100 1,200 22,000 NE 310 3,100 0.53 8800.00 0.47 2.00 1.6 26,000 3.0 1.2 NE 13,000 22000 4.9 440 440 4,400 NE NE 31 1.1 880
NE - Not Established
VISL = US EPA May 2016 Commercial Vapor Intrusion Screening Level, THQ=1 (ug/m3)
*Only those analytes actually detected in at least one sample are tabulated
Suite #56
Smith's Food and Drug
Suite #52
Ulta Beauty
Suite #50 Office Max
Values in bold indicate concentrations above respective VISLs
VISL
Suite #46
Sally Beauty Supply
Tetrachloroethene
(PCE)
Trichloroethene
(TCE)Vinyl chloride trans-
1,2-Dichloroethene**
cis-
1,2-Dichloroethene**
1,2-
Dichloroethane
7PAT (Suite #38)04/26/24 620 26.0 <0.13 110 <0.20 <0.20
2PSB (Suite #46)04/26/24 12 < 0.27 <0.13 0.21 <0.20 <0.20
3POM (Suite #50)04/26/24 220 2.6 <0.13 0.20 <0.20 <0.20
4POM (Suite #50)04/26/24 94 0.6 <0.13 0.95 <0.20 0.26
1570.00 99.70 2.45 NE NE 15.70
NE - Not Established
Table 3
Sub-Slab Soil Gas Probe Analytical Results
The Shops at Fort Union
Midvale, Utah
Sa
m
p
l
e

I
D
Da
t
e

C
o
l
l
e
c
t
e
d
PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3)
*VOCs - Volatile Organic Compounds.
VISL
**US EPA has no VISL, currently – will coordinate risk-based VISLs with UDEQ when warranted.
VISL = US EPA May 2024 Commercial, Sub-Slab Vapor Intrusion Screening Level, THQ=1 (ug/m3), Target Risk Level of 1E-06. VISL online calculator used to generate these VISLs:
https://www.epa.gov/vaporintrusion/vapor-intrusion-screening-level-calculator
Values in bold indicate concentrations above respective VISLs.

APPENDIX A
ALS’ May 2024 Suite #38 Indoor Air Result Report
Site Center’s Summary Letter-Report
Spring 2024 Sampling Indoor Air at Suite #38 (It’s About Time)
and Sub-Slab Soil Gas Monitoring Probes
Former Ft. Union Dry Cleaners
Midvale, Salt Lake County, Utah
ANALYTICAL REPORT
John G. Russell
Stantec
3995 S 700 E
Salt Lake City, UT 84107
Phone:
Fax:
E-mail:
[phone]
[phone]
[e-mail]
Report Date:May 16, 2024
34-2413077Workorder:
DDR
203706007Purchase Order:
Project ID:
Project Manager Lisa M. Reid
Sampling SiteReceive DateCollect DateLab IDClient Sample ID
2413077001 05/08/24AT 05/09/24 DDR
Page 1 of 3 Thu, 05/16/24 9:55 AM ENVREP-V4.8
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX[phone] [phone]
ALS GROUP USA, CORP.An ALS Limited Company
||WEB|http://www.alsglobal.com/slt
ANALYTICAL REPORT
Project Manager:Lisa M. Reid
Client:Stantec Consulting
Services, Inc.
Workorder:34-2413077
Analytical Results
Sample ID:05/08/2024
05/09/20242413077001Lab ID:
Collected:
Received:
AT DDR
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:05/15/2024 12:13
Batch:
Instrument ID:
IVOA/6522 (HBN: 317639)
5975-LPreparation:Not Applicable
Result (ppb)Analyte
Result
(ug/m³)RL (ppb)Dilution Qual
Analysis Method - EPA TO-15 SIM by IH-AN-014
1<0.13ND 0.050Vinyl chloride
1153.7 0.050trans-1,2-Dichloroethene E
1<0.20ND 0.050cis-1,2-Dichloroethene
1<0.20ND 0.0501,2-Dichloroethane
15.61.0 0.050Trichloroethene E
10.470.069 0.050Tetrachloroethene
Comments
Quality Control:EPA TO-15 SIM by IH-AN-014 - (Batch: 317639)
The percent difference for target compounds in the CCV standard must be less than 30% relative to the initial calibration curve.
The following compounds did not meet this criteria: Vinyl Chloride and Carbon Tetrachloride.
Not all compounds in the LCS/LCSD were within performance limits. This is not a method requirement.
Report Authorization
Analyst Peer ReviewMethod
(/S/ is an electronic signature that complies with 21 CFR Part 11)
EPA TO-15 SIM by IH-AN-014 (317639)/S/ Paul Kelly
05/16/2024 09:05 05/16/2024 09:40
/S/ Robert Copenhafer
Laboratory Contact Information
[phone]
[e-mail]
www.alsglobal.com/slt
ALS Environmental
960 W Levoy Drive
Salt Lake City, Utah 84123
Phone:
Email:
Web:
Page 2 of 3 Thu, 05/16/24 9:55 AM ENVREP-V4.8
ANALYTICAL REPORT
Project Manager:Lisa M. Reid
Client:Stantec Consulting
Services, Inc.
Workorder:34-2413077
General Lab Comments
The results provided in this report relate only to the items tested.
Samples were received in acceptable condition unless otherwise noted.
The following was provided by the client: Sample ID, Collection Date, Sampling Location, Media Type, Sampling Parameter.
Collection Date, Media Type, and Sampling Parameter can potentially affect the validity of the results.
Samples have not been blank corrected unless otherwise noted.
This test report shall not be reproduced, except in full, without written approval of ALS.
ALS provides professional analytical services for all samples submitted. ALS is not in a position to interpret the data and
assumes no responsibility for the quality of the samples submitted.
All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted.
ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS
conforms to accreditation requirements and is applied to all analytical testing performed by ALS. The following table lists testing
sector, accreditation body, accreditation number and website. Please contact these accrediting bodies or your ALS project
manager for the current scope of accreditation that applies to your analytical testing.
Testing Sector
Accreditation Body
(Standard)
Certificate
Number Website
Industrial Hygiene AIHA (ISO 17025 &
AIHA IHLAP)
101574 http://www.aihaaccreditedlabs.org
DOECAP-AP L22-62 http://www.pjlabs.com
Washington C596 https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Lab
oratory-Accreditation
Dietary Supplements PJLA (ISO 17025) L22-61 http://www.pjlabs.com
MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity.
RL = Reporting Limit, a verified value of method/media/instrument sensitivity.
CRDL = Contract Required Detection Limit
Reg. Limit = Regulatory Limit.
ND = Not Detected, testing result not detected above the MDL or RL.
< Means this testing result is less than the numerical value.
** No result could be reported, see sample comments for details.
U = Qualifier indicates that the analyte was not detected above the MDL.
J = Qualifier Indicates that the analyte value is between the MDL and the RL. It is also used to indicate an estimated value for
B = Qualifier indicates that the analyte was detected in the blank.
E = Qualifier indicates that the analyte result exceeds calibration range.
P = Qualifier indicates that the RPD between the two columns is greater than 40%.
Result Symbol Definitions
Qualifier Symbol Definitions
tentatively identified compounds in mass spectrometry where a 1:1 response is assumed.
Q = Qualifier indicates that the analyte was outside the limits in a lab QC sample.
Page 3 of 3 Thu, 05/16/24 9:55 AM ENVREP-V4.8
Analysis:
Analyzed By:
IVOA/6522 (HBN: 317639)
Paul Kelly
Workorder:2413077
EPA TO-15 SIM by IH-AN-014
Batch:NA
Prepared By:NA
Batch:
Preparation:NAHistorical/Performance
ALS Laboratory Group
Limits:
Basis:
Analysis Information
Blank
MB:
Analyzed:
Units:
Analyte Result MDL RL
857626
05/15/2024 11:37
ppb
Vinyl chloride NA 0.0500ND
trans-1,2-Dichloroethene NA 0.0500ND
cis-1,2-Dichloroethene NA 0.0500ND
1,2-Dichloroethane NA 0.0500ND
Trichloroethene NA 0.0500ND
Tetrachloroethene NA 0.0500ND
Laboratory Control Sample - Laboratory Control Sample Duplicate
Dilution:1
ppb
Analyte Result % Rec QC Limits
LCS:
Analyzed:
857627
05/15/2024 09:43
Units:
Target
05/15/2024 10:27
857628LCSD:
Analyzed:
Result RPD QC Limits% Rec
Units:ppb
Dilution:1
0.310 25.00.09.6062.1144.466.968.30.5000.342Vinyl chloride
0.363 25.00.04.8272.7126.469.576.20.5000.381trans-1,2-Dichloroethene
0.371 25.00.03.7874.3167.452.277.10.5000.386cis-1,2-Dichloroethene
0.537 25.00.011.0107141.962.41200.5000.6001,2-Dichloroethane
0.521 25.00.02.58104166.633.81070.5000.535Trichloroethene
0.461 25.00.00.43792.2128.961.492.60.5000.463Tetrachloroethene
Comments
The percent difference for target compounds in the CCV standard must be less than 30% relative to the initial calibration curve. The
following compounds did not meet this criteria: Vinyl Chloride and Carbon Tetrachloride.
Not all compounds in the LCS/LCSD were within performance limits. This is not a method requirement.
Page 1 of 2 5/16/2024 9:56:00 AM
Quality Control Sample
Batch Report
QCS V5.0
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX[phone] [phone]
ALS GROUP USA, CORP.An ALS Limited Company
||WEB|http://www.alsglobal.com/slt
Analysis:
Analyzed By:
IVOA/6522 (HBN: 317639)
Paul Kelly
Workorder:2413077
EPA TO-15 SIM by IH-AN-014
Batch:NA
Prepared By:NA
Batch:
Preparation:NAHistorical/Performance
ALS Laboratory Group
Limits:
Basis:
Analysis Information
QC Report Authorization (/S/ is an electronic signature that complies with 21 CFR Part 11)
Analyst Peer ReviewWorkorder
- Sample result is greater than 4 times the spike added
- Analyte above reporting limit or outside of control limits
Symbols and Definitions
RPD - Relative % Difference (Spike / Spike Duplicate)
ND - Not Detected (U - Qualifier also flags analyte as not detected)
QC results are not adjusted for moisture correction, where applicable
- Sample and Matrix Duplicate less than 5 times the reporting limit NA - Not Applicable
- Result is above the calibration range
The Matrix Spike, Matrix Spike duplicate or Matrix Duplicate is
reported for your information only. The sample matrix may be
inappropriate for the method selected.
#-
/S/ Paul Kelly /S/ Robert Copenhafer
05/16/2024 09:05 05/16/2024 09:402413077
Page 2 of 2 5/16/2024 9:56:00 AM
Quality Control Sample
Batch Report
QCS V5.0
Client Samp Lab Sample ID Laboratory NamSDG Matrix Sample Type Date Collected Date Received Date Analyzed Analytical Method CAS No.Analyte Name Result Result Units Qualifie Dilutio Quantitatio RL QC Group Amount Spike Duplicate Result % Recovery Relative % Diff Minimum Recov Maximum Reco Minimum RPD Limit Maximum RPD Limit Result Type
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 3.7 ppb E 1 0.05 0.05 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 15 ug/m³E 1 0.2 0.2 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 1 ppb E 1 0.05 0.05 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 5.6 ug/m³E 1 0.27 0.27 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.069 ppb 1 0.05 0.05 317639 TRG
AT 2413077001 ALS-SLC 2413077 Air SAMPLE 5/8/2024 0:00 5/9/2024 15:05 5/15/2024 12:13 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.47 ug/m³1 0.34 0.34 317639 TRG
LAB QC 857626 ALS-SLC 2413077 Air MB 5/15/2024 11:37 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.05 ppb U 1 0.05 0.05 317639 TRG
LAB QC 857626 ALS-SLC 2413077 Air MB 5/15/2024 11:37 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.05 ppb U 1 0.05 0.05 317639 TRG
LAB QC 857626 ALS-SLC 2413077 Air MB 5/15/2024 11:37 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.05 ppb U 1 0.05 0.05 317639 TRG
LAB QC 857626 ALS-SLC 2413077 Air MB 5/15/2024 11:37 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.05 ppb U 1 0.05 0.05 317639 TRG
LAB QC 857626 ALS-SLC 2413077 Air MB 5/15/2024 11:37 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.05 ppb U 1 0.05 0.05 317639 TRG
LAB QC 857626 ALS-SLC 2413077 Air MB 5/15/2024 11:37 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.05 ppb U 1 0.05 0.05 317639 TRG
LAB QC 857627 ALS-SLC 2413077 Air LCS 5/15/2024 9:43 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride 0.342 ppb 1 0.05 0.05 317639 0.5 68.3 66.9 144 SC
LAB QC 857627 ALS-SLC 2413077 Air LCS 5/15/2024 9:43 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.381 ppb 1 0.05 0.05 317639 0.5 76.2 69.5 126 SC
LAB QC 857627 ALS-SLC 2413077 Air LCS 5/15/2024 9:43 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethene 0.386 ppb 1 0.05 0.05 317639 0.5 77.1 52.2 167 SC
LAB QC 857627 ALS-SLC 2413077 Air LCS 5/15/2024 9:43 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.6 ppb 1 0.05 0.05 317639 0.5 120 62.4 142 SC
LAB QC 857627 ALS-SLC 2413077 Air LCS 5/15/2024 9:43 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.535 ppb 1 0.05 0.05 317639 0.5 107 33.8 167 SC
LAB QC 857627 ALS-SLC 2413077 Air LCS 5/15/2024 9:43 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.463 ppb 1 0.05 0.05 317639 0.5 92.6 61.4 129 SC
LAB QC 857628 ALS-SLC 2413077 Air LCSD 5/15/2024 10:27 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride 0.31 ppb 1 0.05 0.05 317639 0.5 0.342 62.1 9.6 66.9 144 0 25 SC
LAB QC 857628 ALS-SLC 2413077 Air LCSD 5/15/2024 10:27 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.363 ppb 1 0.05 0.05 317639 0.5 0.381 72.7 4.82 69.5 126 0 25 SC
LAB QC 857628 ALS-SLC 2413077 Air LCSD 5/15/2024 10:27 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethene 0.371 ppb 1 0.05 0.05 317639 0.5 0.386 74.3 3.78 52.2 167 0 25 SC
LAB QC 857628 ALS-SLC 2413077 Air LCSD 5/15/2024 10:27 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.537 ppb 1 0.05 0.05 317639 0.5 0.6 107 11 62.4 142 0 25 SC
LAB QC 857628 ALS-SLC 2413077 Air LCSD 5/15/2024 10:27 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.521 ppb 1 0.05 0.05 317639 0.5 0.535 104 2.58 33.8 167 0 25 SC
LAB QC 857628 ALS-SLC 2413077 Air LCSD 5/15/2024 10:27 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.461 ppb 1 0.05 0.05 317639 0.5 0.463 92.2 0.437 61.4 129 0 25 SC
APPENDIX B
ALS’ April 2024 Sub-Slab Soil Gas Result Report
Site Center’s Summary Letter-Report
Spring 2024 Sampling Indoor Air at Suite #38
(It’s About Time) and Sub-Slab Soil Gas
Monitoring Probes
Former Ft. Union Dry Cleaners
Midvale, Salt Lake County, Utah
ANALYTICAL REPORT
John G. Russell
Stantec
3995 S 700 E
Salt Lake City, UT 84107
Phone:
Fax:
E-mail:
[phone]
[phone]
[e-mail]
Report Date:May 02, 2024
34-2411877Workorder:
DDR
DDRPurchase Order:
Project ID:
Project Manager Lisa M. Reid
Sampling SiteReceive DateCollect DateLab IDClient Sample ID
2411877001 NA3POM 04/26/24 DDR
2411877002 NA4POM 04/26/24 DDR
2411877003 NA2PSB 04/26/24 DDR
2411877004 NA7PAT 04/26/24 DDR
Page 1 of 4 Thu, 05/02/24 10:12 AM ENVREP-V4.8
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX[phone] [phone]
ALS GROUP USA, CORP.An ALS Limited Company
||WEB|http://www.alsglobal.com/slt
ANALYTICAL REPORT
Project Manager:Lisa M. Reid
Client:Stantec Consulting
Services, Inc.
Workorder:34-2411877
Analytical Results
Sample ID:04/26/2024
2411877001Lab ID:
Received:3POM DDR
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:05/01/2024 13:32
Batch:
Instrument ID:
IVOA/6511 (HBN: 317208)
5975-LPreparation:Not Applicable
Result (ppb)Analyte
Result
(ug/m³)RL (ppb)Dilution Qual
Analysis Method - EPA TO-15 SIM by IH-AN-014
1<0.13ND 0.050Vinyl chloride
10.200.050 0.050trans-1,2-Dichloroethene
1<0.20ND 0.050cis-1,2-Dichloroethene
1<0.20ND 0.0501,2-Dichloroethane
12.60.49 0.050Trichloroethene
1220320.050Tetrachloroethene E
Sample ID:04/26/2024
2411877002Lab ID:
Received:4POM DDR
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:05/01/2024 14:06
Batch:
Instrument ID:
IVOA/6511 (HBN: 317208)
5975-LPreparation:Not Applicable
Result (ppb)Analyte
Result
(ug/m³)RL (ppb)Dilution Qual
Analysis Method - EPA TO-15 SIM by IH-AN-014
1<0.13ND 0.050Vinyl chloride
10.950.24 0.050trans-1,2-Dichloroethene
1<0.20ND 0.050cis-1,2-Dichloroethene
10.260.064 0.0501,2-Dichloroethane
10.550.10 0.050Trichloroethene
194140.050Tetrachloroethene E
Sample ID:04/26/2024
2411877003Lab ID:
Received:2PSB DDR
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:05/01/2024 14:40
Batch:
Instrument ID:
IVOA/6511 (HBN: 317208)
5975-LPreparation:Not Applicable
Result (ppb)Analyte
Result
(ug/m³)RL (ppb)Dilution Qual
Analysis Method - EPA TO-15 SIM by IH-AN-014
1<0.13ND 0.050Vinyl chloride
10.210.052 0.050trans-1,2-Dichloroethene
Page 2 of 4 Thu, 05/02/24 10:12 AM ENVREP-V4.8
Results Continued on Next Page
ANALYTICAL REPORT
Project Manager:Lisa M. Reid
Client:Stantec Consulting
Services, Inc.
Workorder:34-2411877
Analytical Results
Sample ID:04/26/2024
2411877003Lab ID:
Received:2PSB DDR
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:05/01/2024 14:40
Batch:
Instrument ID:
IVOA/6511 (HBN: 317208)
5975-LPreparation:Not Applicable
Result (ppb)Analyte
Result
(ug/m³)RL (ppb)Dilution Qual
Analysis Method - EPA TO-15 SIM by IH-AN-014
1<0.20ND 0.050cis-1,2-Dichloroethene
1<0.20ND 0.0501,2-Dichloroethane
1<0.27ND 0.050Trichloroethene
1121.7 0.050Tetrachloroethene E
Sample ID:04/26/2024
2411877004Lab ID:
Received:7PAT DDR
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:05/01/2024 15:14
Batch:
Instrument ID:
IVOA/6511 (HBN: 317208)
5975-LPreparation:Not Applicable
Result (ppb)Analyte
Result
(ug/m³)RL (ppb)Dilution Qual
Analysis Method - EPA TO-15 SIM by IH-AN-014
1<0.13ND 0.050Vinyl chloride
1110280.050trans-1,2-Dichloroethene E
1<0.20ND 0.050cis-1,2-Dichloroethene
1<0.20ND 0.0501,2-Dichloroethane
1264.8 0.050Trichloroethene E
1620920.050Tetrachloroethene E
Comments
Workorder:2411877
The percent difference for target compounds in the CCV standard must be less than 30% relative to the initial calibration curve.
The following compounds did not meet this criteria: Vinyl Chloride and Carbon Tetrachloride.
Not all compounds in the LCS/LCSD were within performance limits. This is not a method requirement.
Report Authorization
Analyst Peer ReviewMethod
(/S/ is an electronic signature that complies with 21 CFR Part 11)
EPA TO-15 SIM by IH-AN-014 (317208)/S/ Paul Kelly
05/02/2024 09:18 05/02/2024 09:55
/S/ Thomas J. Masoian
Page 3 of 4 Thu, 05/02/24 10:12 AM ENVREP-V4.8
ANALYTICAL REPORT
Project Manager:Lisa M. Reid
Client:Stantec Consulting
Services, Inc.
Workorder:34-2411877
Laboratory Contact Information
[phone]
[e-mail]
www.alsglobal.com/slt
ALS Environmental
960 W Levoy Drive
Salt Lake City, Utah 84123
Phone:
Email:
Web:
General Lab Comments
The results provided in this report relate only to the items tested.
Samples were received in acceptable condition unless otherwise noted.
The following was provided by the client: Sample ID, Collection Date, Sampling Location, Media Type, Sampling Parameter.
Collection Date, Media Type, and Sampling Parameter can potentially affect the validity of the results.
Samples have not been blank corrected unless otherwise noted.
This test report shall not be reproduced, except in full, without written approval of ALS.
ALS provides professional analytical services for all samples submitted. ALS is not in a position to interpret the data and
assumes no responsibility for the quality of the samples submitted.
All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted.
ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS
conforms to accreditation requirements and is applied to all analytical testing performed by ALS. The following table lists testing
sector, accreditation body, accreditation number and website. Please contact these accrediting bodies or your ALS project
manager for the current scope of accreditation that applies to your analytical testing.
Testing Sector
Accreditation Body
(Standard)
Certificate
Number Website
Industrial Hygiene AIHA (ISO 17025 &
AIHA IHLAP)
101574 http://www.aihaaccreditedlabs.org
DOECAP-AP L22-62 http://www.pjlabs.com
Washington C596 https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Lab
oratory-Accreditation
Dietary Supplements PJLA (ISO 17025) L22-61 http://www.pjlabs.com
MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity.
RL = Reporting Limit, a verified value of method/media/instrument sensitivity.
CRDL = Contract Required Detection Limit
Reg. Limit = Regulatory Limit.
ND = Not Detected, testing result not detected above the MDL or RL.
< Means this testing result is less than the numerical value.
** No result could be reported, see sample comments for details.
U = Qualifier indicates that the analyte was not detected above the MDL.
J = Qualifier Indicates that the analyte value is between the MDL and the RL. It is also used to indicate an estimated value for
B = Qualifier indicates that the analyte was detected in the blank.
E = Qualifier indicates that the analyte result exceeds calibration range.
P = Qualifier indicates that the RPD between the two columns is greater than 40%.
Result Symbol Definitions
Qualifier Symbol Definitions
tentatively identified compounds in mass spectrometry where a 1:1 response is assumed.
Q = Qualifier indicates that the analyte was outside the limits in a lab QC sample.
Page 4 of 4 Thu, 05/02/24 10:12 AM ENVREP-V4.8
Analysis:
Analyzed By:
IVOA/6511 (HBN: 317208)
Paul Kelly
Workorder:2411877
EPA TO-15 SIM by IH-AN-014
Batch:NA
Prepared By:NA
Batch:
Preparation:NAHistorical/Performance
ALS Laboratory Group
Limits:
Basis:
Analysis Information
Blank
MB:
Analyzed:
Units:
Analyte Result MDL RL
856299
05/01/2024 11:51
ppb
Vinyl chloride NA 0.0500ND
trans-1,2-Dichloroethene NA 0.0500ND
cis-1,2-Dichloroethene NA 0.0500ND
1,2-Dichloroethane NA 0.0500ND
Trichloroethene NA 0.0500ND
Tetrachloroethene NA 0.0500ND
Laboratory Control Sample - Laboratory Control Sample Duplicate
Dilution:1
ppb
Analyte Result % Rec QC Limits
LCS:
Analyzed:
856300
05/01/2024 10:10
Units:
Target
05/01/2024 10:44
856301LCSD:
Analyzed:
Result RPD QC Limits% Rec
Units:ppb
Dilution:1
0.234 25.00.02.8546.8144.466.945.40.5000.227Vinyl chloride
0.345 25.00.02.7069.0126.469.570.90.5000.355trans-1,2-Dichloroethene
0.346 25.00.01.9669.3167.452.270.60.5000.353cis-1,2-Dichloroethene
0.545 25.00.02.94109141.962.41120.5000.5611,2-Dichloroethane
0.498 25.00.01.6399.7166.633.898.10.5000.490Trichloroethene
0.437 25.00.01.3987.4128.961.486.10.5000.431Tetrachloroethene
QC Report Authorization (/S/ is an electronic signature that complies with 21 CFR Part 11)
Analyst Peer ReviewWorkorder
- Sample result is greater than 4 times the spike added
- Analyte above reporting limit or outside of control limits
Symbols and Definitions
RPD - Relative % Difference (Spike / Spike Duplicate)
ND - Not Detected (U - Qualifier also flags analyte as not detected)
QC results are not adjusted for moisture correction, where applicable
- Sample and Matrix Duplicate less than 5 times the reporting limit NA - Not Applicable
- Result is above the calibration range
The Matrix Spike, Matrix Spike duplicate or Matrix Duplicate is
reported for your information only. The sample matrix may be
inappropriate for the method selected.
#-
/S/ Paul Kelly /S/ Thomas J. Masoian
05/02/2024 09:18 05/02/2024 09:552411877
Page 1 of 1 5/2/2024 10:13:00 AM
Quality Control Sample
Batch Report
QCS V5.0
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX[phone] [phone]
ALS GROUP USA, CORP.An ALS Limited Company
||WEB|http://www.alsglobal.com/slt
Client Sam Lab Sample Laboratory SDG Matri Sample TypDate Received Date Analyzed Analytical MCAS Numb Analyte Name Result Fla Result Units Result Dilut QL RL QC Group Spiked DUP % Recovery RPD Min. RL Max RecLimit Min RPD Limit Max RPD Limit Result Type Procedure Code
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.05 ppb 1 0.05 0.05 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.2 ug/m³1 0.2 0.2 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 79-01-6 Trichloroethene 0.49 ppb 1 0.05 0.05 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 79-01-6 Trichloroethene 2.6 ug/m³1 0.27 0.27 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 127-18-4 Tetrachloroethene 32 ppb E 1 0.05 0.05 317208 TRG ETO15SIM.1
3POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 13:32 EPA TO-15 127-18-4 Tetrachloroethene 220 ug/m³E 1 0.34 0.34 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.24 ppb 1 0.05 0.05 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.95 ug/m³1 0.2 0.2 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 107-06-2 1,2-Dichloroethane 0.064 ppb 1 0.05 0.05 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 107-06-2 1,2-Dichloroethane 0.26 ug/m³1 0.2 0.2 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 79-01-6 Trichloroethene 0.1 ppb 1 0.05 0.05 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 79-01-6 Trichloroethene 0.55 ug/m³1 0.27 0.27 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 127-18-4 Tetrachloroethene 14 ppb E 1 0.05 0.05 317208 TRG ETO15SIM.1
4POM 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:06 EPA TO-15 127-18-4 Tetrachloroethene 94 ug/m³E 1 0.34 0.34 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.052 ppb 1 0.05 0.05 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.21 ug/m³1 0.2 0.2 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 79-01-6 Trichloroethene <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 79-01-6 Trichloroethene <<0.27 ug/m³U 1 0.27 0.27 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 127-18-4 Tetrachloroethene 1.7 ppb E 1 0.05 0.05 317208 TRG ETO15SIM.1
2PSB 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 14:40 EPA TO-15 127-18-4 Tetrachloroethene 12 ug/m³E 1 0.34 0.34 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 28 ppb E 1 0.05 0.05 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 110 ug/m³E 1 0.2 0.2 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 79-01-6 Trichloroethene 4.8 ppb E 1 0.05 0.05 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 79-01-6 Trichloroethene 26 ug/m³E 1 0.27 0.27 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 127-18-4 Tetrachloroethene 92 ppb E 1 0.05 0.05 317208 TRG ETO15SIM.1
7PAT 2.41E+09 ALS-SLC 2411877 Air SAMPLE 4/26/2024 14:20 5/1/2024 15:14 EPA TO-15 127-18-4 Tetrachloroethene 620 ug/m³E 1 0.34 0.34 317208 TRG ETO15SIM.1
LAB QC 856299 ALS-SLC 2411877 Air MB 5/1/2024 11:51 EPA TO-15 75-01-4 Vinyl chloride <<0.05 ppb U 1 0.05 0.05 317208 TRG ETO15SIM1Q
LAB QC 856299 ALS-SLC 2411877 Air MB 5/1/2024 11:51 EPA TO-15 156-60-5 trans-1,2-Dichloroet <<0.05 ppb U 1 0.05 0.05 317208 TRG ETO15SIM1Q
LAB QC 856299 ALS-SLC 2411877 Air MB 5/1/2024 11:51 EPA TO-15 156-59-2 cis-1,2-Dichloroethe <<0.05 ppb U 1 0.05 0.05 317208 TRG ETO15SIM1Q
LAB QC 856299 ALS-SLC 2411877 Air MB 5/1/2024 11:51 EPA TO-15 107-06-2 1,2-Dichloroethane <<0.05 ppb U 1 0.05 0.05 317208 TRG ETO15SIM1Q
LAB QC 856299 ALS-SLC 2411877 Air MB 5/1/2024 11:51 EPA TO-15 79-01-6 Trichloroethene <<0.05 ppb U 1 0.05 0.05 317208 TRG ETO15SIM1Q
LAB QC 856299 ALS-SLC 2411877 Air MB 5/1/2024 11:51 EPA TO-15 127-18-4 Tetrachloroethene <<0.05 ppb U 1 0.05 0.05 317208 TRG ETO15SIM1Q
LAB QC 856300 ALS-SLC 2411877 Air LCS 5/1/2024 10:10 EPA TO-15 75-01-4 Vinyl chloride 0.227 ppb 1 0.05 0.05 317208 0.5 45.4 66.9 144 SC ETO15SIM1Q
LAB QC 856300 ALS-SLC 2411877 Air LCS 5/1/2024 10:10 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.355 ppb 1 0.05 0.05 317208 0.5 70.9 69.5 126 SC ETO15SIM1Q
LAB QC 856300 ALS-SLC 2411877 Air LCS 5/1/2024 10:10 EPA TO-15 156-59-2 cis-1,2-Dichloroethene 0.353 ppb 1 0.05 0.05 317208 0.5 70.6 52.2 167 SC ETO15SIM1Q
LAB QC 856300 ALS-SLC 2411877 Air LCS 5/1/2024 10:10 EPA TO-15 107-06-2 1,2-Dichloroethane 0.561 ppb 1 0.05 0.05 317208 0.5 112 62.4 142 SC ETO15SIM1Q
LAB QC 856300 ALS-SLC 2411877 Air LCS 5/1/2024 10:10 EPA TO-15 79-01-6 Trichloroethene 0.49 ppb 1 0.05 0.05 317208 0.5 98.1 33.8 167 SC ETO15SIM1Q
LAB QC 856300 ALS-SLC 2411877 Air LCS 5/1/2024 10:10 EPA TO-15 127-18-4 Tetrachloroethene 0.431 ppb 1 0.05 0.05 317208 0.5 86.1 61.4 129 SC ETO15SIM1Q
LAB QC 856301 ALS-SLC 2411877 Air LCSD 5/1/2024 10:44 EPA TO-15 75-01-4 Vinyl chloride 0.234 ppb 1 0.05 0.05 317208 0.5 0.227 46.8 2.85 66.9 144 0 25 SC ETO15SIM1Q
LAB QC 856301 ALS-SLC 2411877 Air LCSD 5/1/2024 10:44 EPA TO-15 156-60-5 trans-1,2-Dichloroethene 0.345 ppb 1 0.05 0.05 317208 0.5 0.355 69 2.7 69.5 126 0 25 SC ETO15SIM1Q
LAB QC 856301 ALS-SLC 2411877 Air LCSD 5/1/2024 10:44 EPA TO-15 156-59-2 cis-1,2-Dichloroethene 0.346 ppb 1 0.05 0.05 317208 0.5 0.353 69.3 1.96 52.2 167 0 25 SC ETO15SIM1Q
LAB QC 856301 ALS-SLC 2411877 Air LCSD 5/1/2024 10:44 EPA TO-15 107-06-2 1,2-Dichloroethane 0.545 ppb 1 0.05 0.05 317208 0.5 0.561 109 2.94 62.4 142 0 25 SC ETO15SIM1Q
LAB QC 856301 ALS-SLC 2411877 Air LCSD 5/1/2024 10:44 EPA TO-15 79-01-6 Trichloroethene 0.498 ppb 1 0.05 0.05 317208 0.5 0.49 99.7 1.63 33.8 167 0 25 SC ETO15SIM1Q
LAB QC 856301 ALS-SLC 2411877 Air LCSD 5/1/2024 10:44 EPA TO-15 127-18-4 Tetrachloroethene 0.437 ppb 1 0.05 0.05 317208 0.5 0.431 87.4 1.39 61.4 129 0 25 SC ETO15SIM1Q