DERR-2025-005253

Stantec Consulting Services Inc.
2890 East Cottonwood Parkway; Suite 300
Salt Lake City UT 84121-7283
Tel: [phone]
October 31, 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, August 2024 Sampling Indoor Air at Suite #38
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 Stantec’s collection of an indoor air
sample at suite #38 (It’s About Time, tenant) on August 9, 2024 at The Shops at Ft. Union shopping
mall in Midvale, Utah (VCP Site # C079). The sampling event was conducted in accordance with
measures proposed within Site Center’s/Stantec’s June 2024 Summary Letter-Report, Associated
with Spring 2024 Sampling Indoor Air at Suite #38 (It’s About Time) and Sub-Slab Soil Gas
Monitoring Probes summary document.
In summary, trichloroethylene (TCE) concentrations inside Suite #38 continue to decline in 2024,
with the most recent August TCE concentration at 3.70 micrograms per cubic meter (i.e., µg/m3).
This letter-report presents tabulated analytical results, figures, and copies of the August 2024
laboratory result report. As noted in Section 3.0, Site Centers requests feedback from the VCP
regarding the path to formal closure of the site. [Please let me know when you are available for a
call once you have reviewed the report.]
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 and C. Reddersen/Site Centers
A.Peck/Holland & Hart

Suite #38 Indoor Air August 2024 Sampling Summary Letter-Report
October 31, 2024

2

1.0 BACKGROUND

On behalf of Site Centers, Stantec has prepared this report to present the results of the August 9,
2024 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 that utilized perchloroethylene (PCE) as
a cleaning agent.
As proposed in recent summary letter-reports, including our most recent Spring 2024 summary
report, Suite #38 was the only tenant suite proposed for sampling during the next scheduled
Summer 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.
The indoor air sample was collected in similar fashion as prior samples were collected within the
suite. The sample was analyzed for the following Volatile Organic Compounds (VOCs) by Method
TO-15 Selected Ion Monitoring (SIM): tetrachloroethylene (PCE) and possible degradative
byproducts TCE, cis/trans-Dichloroethylene (DCE), 1,2-Dichloroethane (DCA), and vinyl chloride.

Table 1 presents recent indoor air results associated with laboratory Method TO-15 SIM analyses,
including the February 2024 results. Table 2 presents historical analytical results that included
analysis of VOCs by Method TO-15, which includes numerous other VOC constituents besides PCE
and its degradative byproducts. The UDEQ and Site Centers agreed that indoor air sampling
events conducted after the March 2017 sampling event would be performed for PCE and its five
degradative byproducts by the SIM method, in order for the laboratory to lower its Method
Detection and Reporting Limits to satisfy corollary US EPA Commercial Indoor Air VISL
concentrations of low micrograms per cubic meter (i.e., µg/m3).

2.0 AUGUST 2024 INDOOR AIR SAMPLING EVENT
2.1 SAMPLING PROTOCOL
On August 9, 2024, Stantec collected an indoor air sample from within suite #38, in similar fashion
and protocol as conducted historically. The indoor air sample was collected in a 6-liter, stainless-
steel, laboratory-certified, summaTM canister, equipped with a laboratory-certified, 8-hour flow rate
regulator that was provided by ALS Environmental Laboratories in Salt Lake City, Utah. The sample
canister was located atop the floor, thereby representing a low-elevation, sampling point within
the suite. The summa canister was labeled and hand-delivered to ALS on the same day as
sampling 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.

Suite #38 Indoor Air August 2024 Sampling Summary Letter-Report
October 31, 2024

3

2.2 ANALYTICAL RESULTS
Table 1 provides a summary of the analytical results associated with the August sampling event
and recent analytical results by the TO-15, SIM laboratory method, while historical TO-15 VOC data
are presented in Table 2. A copy of ALS’ August 2024 laboratory result report is attached as
Appendix A.
All analyte concentrations in suite #38 were below corollary Commercial VISLs, except for TCE at
3.7 µg/m3, which barely exceeded its VISL of 2.99 µg/m3. As may be noted by review of historical
analytical results presented in Tables 1 and 2, TCE and PCE concentrations have declined
significantly since sampling began several years ago.

2.3 QUALITY ASSURANCE AND QUALITY CONTROL
The following sections discuss the Quality Assurance/Quality Control (QA/QC) measures utilized
during the indoor air sampling event.
2.3.1 SAMPLE REQUIREMENTS, CONTAINERS, AND PRESERVATION

The summa canister and dedicated regulator were provided and certified by the laboratory. The
summa canister was hand-delivered by Stantec staff to the laboratory the day of sample
collection.
2.3.2 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 canister and regulator remained in secure custody of the sampler until hand-delivery to
the laboratory. The indoor air sample was analyzed within prescribed Holding Times, and the
results are deemed adequate for this investigation.
2.3.3 CROSS-CONTAMINATION

The summa canister was provided by the laboratory, and the canister and regulator were
individually-cleaned and certified, prior to sample collection. Stantec’s sampler wore nitrile gloves
during sampling activities.
2.3.4 DATA QUALITY INDICATORS AND QA/QC SAMPLES

The laboratory’s Quality Control Report, included within Appendix A herein, did not identify any
QA/QC concerns or issues. 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 air quality results and QA/QC data
indicate that the August 2024 analytical results appear valid and useable for ongoing monitoring
of progress toward satisfying corollary VISL Screening Levels.

Suite #38 Indoor Air August 2024 Sampling Summary Letter-Report
October 31, 2024

4

3.0 CONCLUSIONS AND RECOMMENDATIONS
Based on analytical results during 2024, and recent declines in TCE concentrations inside Suite #38,
Site Centers would appreciate learning from the UDEQ how the VCP site might be closed formally.
To this end, Site Centers will not conduct another indoor air quality sampling event, until receiving
direction from the UDEQ in this regard.

FIGURES

Former Ft. Union Dry Cleaners
The Shops at Ft. Union
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

TABLES

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

Suite #38 Indoor Air August 2024 Sampling Summary Letter-Report
October 31, 2024

TABLE 1. RECENT INDOOR AIR ANALYTICAL RESULTS

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 08/09/24 < 0.34 <0.13 130.00 <0.20 < 0.20 3.70
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'
47.20 92.90 NE NE 0.472 2.99
*VOCs - Volatile Organic Compounds.
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
VISL
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 #42
MW-JD
Suite #40
The Mail Center
Suite #44
Fantastic Sam's
Suite #46
Sally Beauty
Supply
47.20 92.90 NE NE 0.472 2.99
*VOCs - Volatile Organic Compounds.
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
VISL
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 92.90 NE NE 0.472 2.99
*VOCs - Volatile Organic Compounds.
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
VISL

Suite #38 Indoor Air August 2024 Sampling Summary Letter-Report
October 31, 2024

TABLE 2. HISTORICAL INDOOR AIR ANALYTICAL RESULTS
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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

ANALYTICAL RESULTS REPORT

Former Ft. Union Dry Cleaners
The Shops at Ft. Union
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:August 19, 2024
34-2422274Workorder:
AT
NAPurchase Order:
Project ID:
Project Manager Lisa M. Reid
Sampling SiteReceive DateCollect DateLab IDClient Sample ID
2422274001 NAAT 08/09/24
Page 1 of 3 Mon, 08/19/24 11:40 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:34-2422274
Analytical Results
Sample ID:08/09/2024
2422274001Lab ID:
Received:AT NA
Sampling Parameter:NAMatrix:
Media:
Air
Summa 6 Liter Canister
Sampling Site:
Analysis:EPA TO-15 SIM, Air
Analyzed:08/16/2024 10:25
Batch:
Instrument ID:
IVOA/6587 (HBN: 320124)
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
1130340.050trans-1,2-Dichloroethene E
1<0.20ND 0.050cis-1,2-Dichloroethene
1<0.20ND 0.0501,2-Dichloroethane
13.70.68 0.050Trichloroethene
1<0.34ND 0.050Tetrachloroethene
Comments
Quality Control:EPA TO-15 SIM by IH-AN-014 - (Batch: 320124)
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.
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 (320124)/S/ Paul Kelly
08/16/2024 14:08 08/19/2024 11:37
/S/ Thomas J. Masoian
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 Mon, 08/19/24 11:40 AM ENVREP-V4.8
ANALYTICAL REPORT
Project Manager:Lisa M. Reid
Client:Stantec Consulting
Services, Inc.
Workorder:34-2422274
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 Mon, 08/19/24 11:40 AM ENVREP-V4.8
Analysis:
Analyzed By:
IVOA/6587 (HBN: 320124)
Paul Kelly
Workorder:2422274
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
865822
08/16/2024 09:28
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:
865823
08/16/2024 07:37
Units:
Target
08/16/2024 08:19
865824LCSD:
Analyzed:
Result RPD QC Limits% Rec
Units:ppb
Dilution:1
0.247 25.00.08.6249.4144.466.953.90.5000.269Vinyl chloride
0.609 25.00.01.39122126.469.51230.5000.617trans-1,2-Dichloroethene
0.616 25.00.00.623123167.452.21230.5000.613cis-1,2-Dichloroethene
0.443 25.00.08.5988.6141.962.481.30.5000.4071,2-Dichloroethane
0.465 25.00.07.5793.1166.633.886.30.5000.431Trichloroethene
0.590 25.00.08.79118128.961.41080.5000.540Tetrachloroethene
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.
Not all compounds in the LCS/LCSD were within performance limits. This is not a method requirement.
Page 1 of 2 8/19/2024 11:41:00 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/6587 (HBN: 320124)
Paul Kelly
Workorder:2422274
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/ Thomas J. Masoian
08/16/2024 14:08 08/19/2024 11:372422274
Page 2 of 2 8/19/2024 11:41:00 AM
Quality Control Sample
Batch Report
QCS V5.0
Client Sa Lab Sam Laborato SDG Matrix Sample Date Collec Date Received Date Analyzed Analytical Method CAS NumbeAnalyte Name Flags Result Units Qual DilutQL RL QC Group SpikedDUP % Reco RPD Min RL Max RL Min RPD Max RPD Result T Procedure Code
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 34 ppb E 1 0.05 0.05 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 130 ug/m³E 1 0.2 0.2 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.68 ppb 1 0.05 0.05 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 3.7 ug/m³1 0.27 0.27 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 320124 TRG ETO15SIM.1
AT 2E+09 ALS-SLC 2E+06 Air SAMPLE 8/92024 8/9/2024 16:20 8/16/2024 10:25 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 320124 TRG ETO15SIM.1
LAB QC 865822 ALS-SLC 2E+06 Air MB 8/16/2024 9:28 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.05 ppb U 1 0.05 0.05 320124 TRG ETO15SIM1Q
LAB QC 865822 ALS-SLC 2E+06 Air MB 8/16/2024 9:28 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.05 ppb U 1 0.05 0.05 320124 TRG ETO15SIM1Q
LAB QC 865822 ALS-SLC 2E+06 Air MB 8/16/2024 9:28 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.05 ppb U 1 0.05 0.05 320124 TRG ETO15SIM1Q
LAB QC 865822 ALS-SLC 2E+06 Air MB 8/16/2024 9:28 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.05 ppb U 1 0.05 0.05 320124 TRG ETO15SIM1Q
LAB QC 865822 ALS-SLC 2E+06 Air MB 8/16/2024 9:28 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.05 ppb U 1 0.05 0.05 320124 TRG ETO15SIM1Q
LAB QC 865822 ALS-SLC 2E+06 Air MB 8/16/2024 9:28 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.05 ppb U 1 0.05 0.05 320124 TRG ETO15SIM1Q
LAB QC 865823 ALS-SLC 2E+06 Air LCS 8/16/2024 7:37 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride 0.269 ppb 1 0.05 0.05 320124 0.5 53.9 66.9 144 SC ETO15SIM1Q
LAB QC 865823 ALS-SLC 2E+06 Air LCS 8/16/2024 7:37 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.617 ppb 1 0.05 0.05 320124 0.5 123 69.5 126 SC ETO15SIM1Q
LAB QC 865823 ALS-SLC 2E+06 Air LCS 8/16/2024 7:37 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethene 0.613 ppb 1 0.05 0.05 320124 0.5 123 52.2 167 SC ETO15SIM1Q
LAB QC 865823 ALS-SLC 2E+06 Air LCS 8/16/2024 7:37 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.407 ppb 1 0.05 0.05 320124 0.5 81.3 62.4 142 SC ETO15SIM1Q
LAB QC 865823 ALS-SLC 2E+06 Air LCS 8/16/2024 7:37 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.431 ppb 1 0.05 0.05 320124 0.5 86.3 33.8 167 SC ETO15SIM1Q
LAB QC 865823 ALS-SLC 2E+06 Air LCS 8/16/2024 7:37 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.54 ppb 1 0.05 0.05 320124 0.5 108 61.4 129 SC ETO15SIM1Q
LAB QC 865824 ALS-SLC 2E+06 Air LCSD 8/16/2024 8:19 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride 0.247 ppb 1 0.05 0.05 320124 0.5 0.269 49.4 8.62 66.9 144 0 25 SC ETO15SIM1Q
LAB QC 865824 ALS-SLC 2E+06 Air LCSD 8/16/2024 8:19 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.609 ppb 1 0.05 0.05 320124 0.5 0.617 122 1.39 69.5 126 0 25 SC ETO15SIM1Q
LAB QC 865824 ALS-SLC 2E+06 Air LCSD 8/16/2024 8:19 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethene 0.616 ppb 1 0.05 0.05 320124 0.5 0.613 123 0.623 52.2 167 0 25 SC ETO15SIM1Q
LAB QC 865824 ALS-SLC 2E+06 Air LCSD 8/16/2024 8:19 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.443 ppb 1 0.05 0.05 320124 0.5 0.407 88.6 8.59 62.4 142 0 25 SC ETO15SIM1Q
LAB QC 865824 ALS-SLC 2E+06 Air LCSD 8/16/2024 8:19 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.465 ppb 1 0.05 0.05 320124 0.5 0.431 93.1 7.57 33.8 167 0 25 SC ETO15SIM1Q
LAB QC 865824 ALS-SLC 2E+06 Air LCSD 8/16/2024 8:19 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.59 ppb 1 0.05 0.05 320124 0.5 0.54 118 8.79 61.4 129 0 25 SC ETO15SIM1Q