DERR-2024-005268

2410 WEST CALIFORNIA AVENUE • SALT LAKE CITY, UTAH 84104
PHONE [phone] • FAX [phone]
Website: www.wasatch-environmental.com • e-Mail: [e-mail]
Mr. James Blankenau November 22, 2023
Intermountain Health, Canyons Project No.: 1314-094B
383 West Vine Street, 4th Floor
Murray, Utah 84124

SUBJECT: Limited Subsurface Investigation
Former Sears Automotive Center
754 South State Street, Salt Lake City, Utah
Facility No. 4000924, Release ID OGP

Wasatch Environmental, Inc., (Wasatch) has completed limited subsurface investigation (LSI) activities at
the former Sears Automotive Center property (Property), located at 754 South State Street in Salt Lake
City, Utah. The investigation activities consisted of advancing eight soil borings during two mobilizations
to collect soil and groundwater samples to investigate the nature and extent of a release of petroleum
hydrocarbons identified during removal of three formerly abandoned in place underground storage tanks
(USTs), located beneath the former Sears Automotive Center building, which was demolished in fall
2022.

BACKGROUND

Intermountain Health, the current owner of the Property was sent a Petroleum Release Requirement
letter from the Utah Division of Environmental Response and Remediation (DERR) on December 30,
2022. The letter outlines the requirements to document the initial abatement activities and to conduct site
investigation activities to define the vertical and lateral extent of petroleum impacts to soil and
groundwater. During UST removal and additional soil over excavation, closure and confirmation soil
samples were greater than the Utah Initial Screening Levels (ISLs). Specifically, confirmation soil
samples SS-7 oex @ 13’ and SS-9 oex @ 12’ were greater than the ISLs for total petroleum
hydrocarbons as diesel-range organics (TPH-DRO) and for total recoverable petroleum hydrocarbons
(TRPH).

OBJECTIVE

The objective of this investigation is to satisfy the requirements of the Petroleum Release Requirement
letter by fully defining the lateral and vertical extent of petroleum impacts in soil and groundwater.

METHODOLOGY

On June 6, 2023, Wasatch Geologist Jake Scott (Utah UST Groundwater and Soil Sampler GS 1829)
advanced four soil borings (GP-1 through GP-4) and collected soil and groundwater samples in the
hydraulically downgradient direction (south and southwest) of the removed tanks in an attempt to fully
define the lateral extent of petroleum impacts above the ISLs. A groundwater sample collected south of
the tank pit (GP-3 GW) was greater than the Utah ISL and the Utah Risked Based Corrective Action
(RBCA) Screening Level for TPH-DRO and TRPH. Soil samples at three locations (GP-2 @ 8’, GP-4 @
8’ and GP-4 @ 13’ were greater than the Utah ISLs. The June 2023 boring locations are shown on
Figure 1.

On October 12, 2023, Wasatch advanced an additional four soil borings (GP-5 through GP-8) and
collected soil and groundwater samples in the hydraulically downgradient direction (south and southwest)
in an attempt to fully define the lateral extent of petroleum impacts above the ISLs. Boring location GP-5

Wasatch Environmental Inc.
Page 2
was placed in the area where elevated petroleum hydrocarbons were identified during the June 2023
investigation results.

The direct-push borings were advanced to a depth of 15 feet below ground surface (bgs). Soil samples
were collected using 5-foot long by 1.5-inch diameter, discrete interval push samplers equipped with
disposable polybutyrate liners. Drill rods were decontaminated between each soil boring. The soil cores
were field logged by an experienced environmental scientist. The field logging included a description of
color, consistency, odor, staining, and soil type based on the Unified Soil Classification System. The soil
cores were screened in the field using a Photoionization Detector (PID) equipped with an 11.6 electron
volt lamp. The PID was calibrated with a 100-parts per million (ppm) isobutylene standard calibration gas.
The PID is utilized to identify soils that may have been impacted by volatile organic compounds (VOCs)
such as those found in petroleum fuels and some solvents.

Soil samples were collected from each boring at the depth intervals exhibiting the most significant
indications of contamination based on field screening and field observations (i.e., soil staining, odors, and
elevated PID readings), or the depth in which contamination was likely to be located, based on the
closure sampling results. If no obvious indications of contamination were observed, samples were
collected from depths most likely to be impacted based on Property features or observed lithology.

Soil samples were collected using gloved hands. Soil samples were collected into laboratory-supplied 2-
oz glass jars, and immediately placed in a cooler with ice. All soil samples were delivered under chain-of-
custody protocol to Chemtech-Ford, a Utah-Certified analytical laboratory for analysis of methyl tert-butyl
ether (MTBE), benzene, ethylbenzene, toluene, total xylenes, naphthalene (MBTEXN), and total
petroleum hydrocarbons as gasoline-range organics (TPH-GRO) using U.S. EPA Method 8260D, TPH-
DRO, using U.S. EPA Method 8015A with silica gel treatment (SGT), and TRPH using U.S. EPA Method
1664. Additionally, some of the soil samples were analyzed for diesel fractionation using the U.S. EPA
Method 8270E to aid in a potential risk-based closure assessment.

Groundwater Sampling
In conjunction with the boring activities, one groundwater sample was collected from each boring from a
screened interval of 16 to 20 feet bgs. Groundwater samples were collected using a stainless-steel well-
point, a peristaltic pump, and ¼-inch outside diameter, low-density polyethylene tubing. Groundwater
was initially purged from each location prior to sampling to reduce the turbidity of the samples.

Groundwater samples were collected with gloved hands. Groundwater samples collected for TPH-GRO,
and MBTEXN were dispensed into 40-milliliter (mL) capacity amber glass vials preserved with
hydrochloric acid and secured with Teflon® septa caps. The vials were filled slowly until a meniscus
formed at the top of each vial, then each vial was sealed with a septa cap. This procedure eliminates
headspace within the vials and minimizes the loss of volatiles. Groundwater samples collected for TPH-
DRO and TPH-DRO fractionation were dispensed into 80-mL, unpreserved, amber glass vials. The
sample vials were labeled with the sample location, sample identification, date and time of sample
collection, and requested analysis. All groundwater samples were placed in a cooler with ice and
transported under chain-of-custody protocol to Chemtech Ford for analysis of MBTEXN and TPH-GRO
using U.S. EPA Method 8260D, TPH-DRO using U.S. EPA Method 8015A with SGT, and TRPH using
U.S. EPA Method 1664. Additionally, groundwater samples GP-3 GW and GP-7 were analyzed for diesel
fractionation using the U.S. EPA Method 8270E to aid in a potential risk-based closure assessment.

Following the completion of sampling activities, the borings were backfilled with medium bentonite chips
and hydrated to match the existing surface at each boring location.

FIELD OBSERVATIONS AND LABORATORY ANALYTICAL RESULTS

Soils at the Property consist of silty clay (CL) and clay (CH). The depth to groundwater at the Property
was approximately 13 feet bgs during the June 2023 sampling event and approximately 15 feet bgs
during the October 2023 sampling event. The clay soils did not yield water easily and therefore, no
groundwater samples could be recovered at GP-2, GP-4, or GP-5. Screen depths were typically set at 16

Wasatch Environmental Inc.
Page 3
to 20 feet bgs. Trace PID readings were observed in most soil borings at a depth around 10 feet bgs. At
GP-2, PID readings were 27 ppm from 8 to 9 feet bgs. Boring logs are presented in Appendix A.

Table 1 summarizes the soil analytical results. Analyte concentrations in soil were compared to the Utah
ISLs) and the Utah RBCA Tier 1 Screening levels. The laboratory analytical report and chain-of-custody
documentation are presented in Appendix B.

As shown in Table 1, TPH-DRO and TRPH were identified at concentrations greater than ISLs in soil
samples GP-2 @ 8’, GP-4 @ 8’, GP-4 @ 13’ and GP-6. Additionally, the reported concentration of TPH-
DRO at GP-2 @ 8’ (8,190 milligrams per kilogram (mg/kg)) was also greater than the Utah RBCA Tier I
Screening Level of 5,000 mg/kg. TPH-GRO was identified in GP-2 @ 8’ at a concentration of 7.52 mg/kg,
well below the ISL of 150 mg/kg. TPH-GRO was not detected above laboratory minimum reporting limits
in the other soil samples collected. No MBTEXN compounds were detected above laboratory minimum
reporting limits in any of the soil samples collected.

Groundwater analytical data is summarized in Table 2. Analyte concentrations in groundwater were
compared to the Utah ISLs and the Utah RBCA Tier 1 Screening Levels. Sample locations are shown in
Figure 1. The laboratory analytical report and chain-of-custody documentation are presented in Appendix
B.

As shown on Table 2, TPH-DRO and TRPH groundwater impacts were identified in sample GP-3 GW at
concentrations above the Utah RBCA Tier 1 Screening Levels. TPH-DRO and TRPH were not identified
at concentrations above laboratory minimum reporting limits in the other groundwater samples. No
MBTEXN or TPH-GRO compounds were detected above laboratory minimum reporting limits in any of the
groundwater samples collected.

Wasatch fractionated soil samples GP-3 @ 13’, GP-5, and GP-7 and groundwater samples GP-3 GW and
GP-7. Wasatch utilized site-specific parameters (including residential receptors) and the analytical data
from soil sample GP-7 and groundwater sample GP-7 in the DERR site specific cleanup level (SSCL)
spreadsheet. The results are shown on the DERR SSCL spreadsheet (Appendix C). Based on these
results, benzene leaching from soil to groundwater (groundwater ingestion) was a completed pathway.
However, it appears that this was caused by the laboratory detection limit (half of the detection limit was
used) because all soil and groundwater samples were below laboratory method detection in all samples
collected for benzene and all the other MBTEXN compounds. The other pathways were not complete.

Similarly, six semi-volatile organic compounds were greater than the SSCLs for groundwater ingestion
and surface soil exposure pathways (i.e., dermal contact, inhalation of soil particles, ingestion of soil
particles, or construction worker exposure) even though none of these compounds were identified at
concentrations greater than the laboratory method detection limits.

CONCLUSIONS AND RECOMMENDATIONS

Wasatch completed eight soil borings that facilitated the collection of soil and groundwater samples south
and southwest of the removed USTs to define the nature and extent of soil and groundwater impacts.
Based on the analytical results, groundwater impacts are limited to the vicinity of GP-2, GP-3, and GP-4.
The groundwater samples collected downgradient at GP-6, GP-7, and GP-8 were not impacted. Soil
impacts by TPH-DRO and TRPH at concentrations greater than Utah ISLs were identified at samples GP-
6, GP-7, and GP-8, however the SSCL spreadsheet calculations did not indicate an ongoing concern with
the current soil concentrations. Soil impacts are generally located between 8 and 13 feet bgs and extend
approximately 20 feet south of the existing excavation. Intermountain proposed conducting corrective
action to address these soil impacts once site plans for redevelopment and future land use are finalized.

Wasatch Environmental Inc.
Page 4

Our services consist of professional opinions and recommendations made in accordance with generally
accepted environmental engineering principles and practices. This warranty is in lieu of all other
warranties either expressed or implied.

Should you have any questions, please contact us.

Sincerely,

WASATCH ENVIRONMENTAL, INC.

Christopher J. Nolan, P.G.
Senior Project Manager
Utah UST Certified Consultant CC 118

FIGURE

Figure 1 – Sample Location Map

TABLES

Table 1 – Summary of Soil Analytical Results
Table 2 – Summary of Groundwater Analytical Results

APPENDICES

Appendix A – Boring Logs
Appendix B – Laboratory Analytical Reports
Appendix C – DERR Site-Specific Cleanup Level Documentation

Figure

Former Sears Automotive
Service Center
Approximate
Location of
Removed
Fuel USTs Approximate
Location of
Removed
Oil/Heating Oil USTs
Approximate
Location of
Closed In Place
Used Oil USTs
Approximate
Location of
Former
Gas/Service Station
Approximate
Location of
Former
Sears Gas Station
The use or reuse of this information is restricted to the referenced document unless otherwise authorized.
Wasatch Environmental Copyright 2006
Sample Location Map Figure 1
FORMER SEARS WEI 1314-094B
UST
Excavation
GP-1
GP-2 GP-3
GP-4
GP-7
GP-8 GP-6
GP-5
LEGEND
Boring Locations
Previous Boring Locations - June 2023
1 inch = 60 feet

Data Tables

TP
H
-
D
R
O
TR
P
H
TP
H
-
G
R
O
Me
t
h
y
l

t
e
r
t
i
a
r
y
-
b
u
t
y
l

e
t
h
e
r
Be
n
z
e
n
e
Et
h
y
l
b
e
n
z
e
n
e
Na
p
h
t
h
a
l
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
Southwest of Tank Pit GP-1 @ 13'13.0 6/16/2023 <63 <312 <0.265 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-2 @ 8'8.0 6/16/2023 8,190 7,770 7.52 <0.11 <0.11 <0.28 <0.28 <0.28 <0.28
South of Tank Pit GP-2 @ 15'15.0 6/16/2023 110 <318 <0.275 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-3 @ 13'13.0 6/16/2023 128 420 <0.254 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-4 @ 8'8.0 6/16/2023 4,470 3,570 <0.294 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-4 @ 13'13.0 6/16/2023 1,300 1,010 <0.301 <0.01 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-5 10 10/13/2023 219 <329 <0.328 <0.03 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-6 10 10/13/2023 564 859 <0.292 <0.01 <0.01 <0.03 <0.03 <0.03 0.03
South of Tank Pit GP-7 10 10/13/2023 490 1,380 <0.283 <0.03 <0.01 <0.03 <0.03 <0.03 <0.03
South of Tank Pit GP-8 10 10/13/2023 273 1,270 <0.229 <0.009 <0.009 <0.02 <0.02 <0.02 <0.02
500 1,000 150 0.3 0.2 5 51 9 142
5,000 10,000 1,500 0.3 0.9 23 51 25 142
NOTES:
< = concentration was below the laboratory reporting limit
BOLD = Value is greater than the Utah Initial Screening Level
Utah Risk-Based Corrective Action Tier 1 Screening Levels
Table 1
Summary of Soil Analytical Results
Sears Automotive
Salt Lake City, Utah
all concentrations are expressed in milligrams per kilogram (mg/kg)
Utah Initial Screening Levels
Sample Location Sample I.D.Depth
(feet)
Sample
Collection
Date
Petroleum Hydrocarbons
TP
H
-
D
R
O
TR
P
H
TP
H
-
G
R
O
Me
t
h
y
l

t
e
r
t
i
a
r
y
-
b
u
t
y
l

e
t
h
e
r
Be
n
z
e
n
e
Et
h
y
l
b
e
n
z
e
n
e
Na
p
h
t
h
a
l
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
Southwest of Tank Pit GP-1 GW 6/16/2023 <1.0 <5 <0.125 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012
South of Tank Pit GP-3 GW 6/16/2023 11.8 28 <0.125 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012
South of Tank Pit GP-6 10/13/2023 <1.0 <5 <0.125 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012
South of Tank Pit GP-7 10/13/2023 <1.0 <8 <0.125 <0.012 <0.005 <0.012 <0.012 <0.012 <0.012
South of Tank Pit GP-8 10/13/2023 <1.0 NA <0.125 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012
1.0 10 1.0 0.2 0.005 0.7 0.7 1.0 10
10 10 10 0.2 0.3 4.0 0.7 3.0 10
NOTES:
< = concentration was below the laboratory reporting limit
BOLD = measured concentration is greater than the applicable Utah Initial Screening Level
NA - Not analyzed
Utah Risk-Based Corrective Action Tier 1 Screening Levels
Table 2
Summary of Groundwater Analytical Results
Former Sears Automotive
754 South State Street
Salt Lake City, Utah
all concentrations are expressed in milligrams per liter (mg/L)
Utah Initial Screening Levels
Sample Location Sample I.D.
Sample
Collection
Date
Petroleum Hydrocarbons

Appendix A
Boring Logs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-1
Ground Surface
CH
Jake Scott
15’
6-16-23
End of Boring
Blue/
Tan
PI
D

(
p
p
b
)
No Recovery (0’-10’)
Clay (10’-15’): high-plasticity, molted blue and tan,
saturated
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
~13’
Soft 4.3
temporary piezometer
screen set 11’-15’
Temporary Well
Construction
Geoprobe 7822DT
BORING LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-2
Ground Surface
20’
Unkown
PI
D

(
p
p
b
)
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
Jake Scott
6-16-23
CH
End of Boring
Brown/
Gray
Clay (15’-20’): high-plasticity, saturated Stiff
27.7
CLBrownSilty Clay (0’-10’): low-plasticity, some fine-grained sand
and small to medium sub-rounded to sub-angular gravel in
the upper 0’-5.5’ interval, slight hydrocarbon odor in the
8’-10’ interval, moist
Medium
Stiff
No Recovery (10’-15’)
27.0
7.4
Tan
Temporary Well
Construction
BORING LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-3
Ground Surface
20’
~13’
PI
D

(
p
p
b
)
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
Jake Scott
6-16-23
CH
End of Boring
Green/
Gray
Clay (18.5’-20’): high-plasticity, molted green and gray,
organic odor, saturated
Medium
Stiff
0.5
temporary
piezometer
screen
set 16’-20’
CLBrownSilty Clay (0’-18.5’): low to moderate-plasticity, some fine-
grained sand and small to medium sub-rounded to sub-
angular gravel in the upper 0’-5.5’ interval, moist, saturated
at 13’
Medium
Stiff
1.1
0.7
Tan
0.6
0.6
Stiff
Temporary Well
Construction
BORING LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-4
Ground Surface
15’
~12.5’
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
PI
D

(
p
p
b
)
Jake Scott
6-16-23
5.1
CLDark
Brown
Silty Clay (0’-18.5’): low to moderate-plasticity, some fine-
grained sand and small to medium sub-rounded to angular
gravel in the upper 0’-5’ interval, slight hydrocarbon
odor in the 7’-8’ interval, moist, saturated at 12.5’
Medium
Stiff
0.1
Tan Stiff
End of Boring
Temporary Well
Construction
2.2
1.3
Geoprobe 7822DT
BORING LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-5
Ground Surface
25’
~15’
PI
D

(
p
p
b
)
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
Jake Scott
10-12-23
Geoprobe 7822DT
CH
Continued on next page
Green/
Gray
Clay (19’-25’): high-plasticity, molted green and gray,
saturated
Soft
4.0
CLDark
Brown/
Tan
Silty Clay (0’-19’): low-plasticity, small to large sub-
rounded to sub-angular gravel in the upper 0’-5.5’ interval,
moist, saturated at 15’
Medium
Stiff/
Stiff
1.9
5.6
3.3
4.1
Temporary Well
Construction
0.7
1.7
0.7
0.1
BORING LOG
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Bl
o
w
s
/
F
o
o
t
PI
D

(
p
p
m
)
Wa
t
e
r

L
e
v
e
l
BORING LOG
BORING NO.:PROJECT NO.:Environmental Science and Engineering
End of Boring
Ground Surface
25’
~15’
Jake Scott
10-12-23
Geoprobe 7822DT
GP-51314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
temporary
piezometer
screen
set 21’-25’
Temporary Well
Construction
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-6
Ground Surface
20’
~15.5’
PI
D

(
p
p
b
)
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
Jake Scott
CH
End of Boring
Green/
Gray
Clay (18’-20’): high-plasticity, molted green and gray,
organic odor, saturated
Soft
2.8
temporary
piezometer
screen
set 16’-20’
2.6
3.2
1.9
0.9
Temporary Well
Construction
Geoprobe 7822DT
10-12-23
CLDark
Brown/
Tan
Silty Clay (0’-18’): low-plasticity, small to large sub-
rounded to sub-angular gravel in the upper 0’-4’ interval,
moist, saturated at 15.5’
Medium
Stiff/
Stiff
0.2
1.5
1.7
BORING LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-7
Ground Surface
20’
~15.5’
PI
D

(
p
p
b
)
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
Jake Scott
Temporary Well
Construction
Geoprobe 7822DT
10-12-23
CH
End of Boring
Green/
Gray
Clay (17.5’-20’): high-plasticity, molted green and gray,
organic odor, saturated
Soft
temporary
piezometer
screen
set 16’-20’
CLDark
Brown/
Tan
Silty Clay (0’-17.5’): low-plasticity, small to large sub-
rounded to sub-angular gravel in the upper 0’-4’ interval,
moist, saturated at 15.5’
Medium
Stiff/
Stiff
BORING LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DATE DRILLED:
LOGGED BY:
REFERENCE ELEVATION:
DRILL RIG:
TOTAL DEPTH:
DEPTH TO GROUNDWATER:
DESCRIPTION AND CLASSIFICATION
Description and Remarks Color
Soil
Type Consist.De
p
t
h

(
f
e
e
t
)
Sa
m
p
l
e
r
Wat
e
r

L
e
v
e
l
PI
D

(
p
p
m
)
BORING NO.:PROJECT NO.:Environmental Science and Engineering GP-8
Ground Surface
20’
~15.5’
PI
D

(
p
p
b
)
1314-094B
Sears UST LSI
709 South Main Street
S alt Lake, Utah
Jake Scott
Temporary Well
Construction
Geoprobe 7822DT
10-12-23
CH
End of Boring
Green/
Gray
Clay (18’-20’): high-plasticity, molted green and gray,
organic odor, saturated
Soft
0.6
temporary
piezometer
screen
set 16’-20’
4.8
10.3
4.1
2.7
CLDark
Brown/
Tan
Silty Clay (0’-18’): low-plasticity, small to large sub-
rounded to sub-angular gravel in the upper 0’-5’ interval,
moist, saturated at 15.5’
Medium
Stiff/
Stiff
BORING LOG

Appendix B
Analytical Laboratory Reports

The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Wasatch Environmental
Attn: Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
Work Order: 23F1407
Project: Sears UST LSI
6/27/2023
Approved By:
Reed Hendricks, Director of Operations
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-1 @ 13
Lab ID: 23F1407-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 9:30
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2363EPA 8015 CNDDiesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23312EPA 1664BModNDOil & Grease (HEM)
%6/20/236/19/230.1 CTF800080.0Total Solids
mg/kg dry 6/19/236/19/23312EPA 1664BModNDTRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.265 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 2 of 11Page 2 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-1 @ GW
Lab ID: 23F1407-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 10:00
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 6/19/236/19/231.0 EPA 8015 CNDDiesel Range Organics
Inorganic
mg/L 6/19/236/19/235EPA 1664BNDOil & Grease (HEM)
mg/L 6/20/236/19/235EPA 1664BNDTRPH (SGT-HEM)
MBTEXn
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDBenzene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDEthylbenzene
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDNaphthalene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDToluene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/L 6/19/236/19/230.125 EPA 8260B/C 5030ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 3 of 11Page 3 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-2 @ 8
Lab ID: 23F1407-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 10:45
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2357EPA 8015 C8190Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23283EPA 1664BMod10900Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800088.1Total Solids
mg/kg dry 6/21/236/19/23283EPA 1664BMod7770TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.11 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/232.84 EPA 8260B/C 5035A7.52Gasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 4 of 11Page 4 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-2 @ 15
Lab ID: 23F1407-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 11:10
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2364EPA 8015 C110Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23318EPA 1664BModNDOil & Grease (HEM)
%6/20/236/19/230.1 CTF800078.4Total Solids
mg/kg dry 6/19/236/19/23318EPA 1664BModNDTRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.275 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 5 of 11Page 5 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-3 @ 13
Lab ID: 23F1407-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 11:55
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2363EPA 8015 C128Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23313EPA 1664BMod639Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800079.4Total Solids
mg/kg dry 6/21/236/19/23313EPA 1664BMod420TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.254 EPA 8260B/C 5035ANDGasoline Range Organics
Semi-Volatile Compounds
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDC11-12 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDC13-C16 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550B22.5C17-C21 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550B30.7C22-C35 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDC11-C13 Alkyl Naphthalenes
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDTotal C12-C22 PAH
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDAcenaphthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDAcenaphthylene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDAnthracene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (a) anthracene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (a) pyrene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (b) fluoranthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (g,h,i) perylene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (k) fluoranthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDChrysene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDFluoranthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDFluorene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDIndeno (1,2,3-cd) pyrene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDPhenanthrene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDPyrene
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 6 of 11Page 6 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-3 GW
Lab ID: 23F1407-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 12:10
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 6/19/236/19/231.0 EPA 8015 C11.8Diesel Range Organics
Inorganic
mg/L 6/19/236/19/236EPA 1664B39Oil & Grease (HEM)
mg/L 6/21/236/19/236EPA 1664B28TRPH (SGT-HEM)
MBTEXn
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDBenzene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDEthylbenzene
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDNaphthalene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDToluene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/L 6/19/236/19/230.125 EPA 8260B/C 5030ANDGasoline Range Organics
Semi-Volatile Compounds
ug/L 6/21/236/20/2310EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/35114C17-C21 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/3511NDC22-C35 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
ug/L 6/21/236/20/2310EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 6/21/236/20/2310EPA 8270E/3511NDAcenaphthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDAcenaphthylene
ug/L 6/21/236/20/2310EPA 8270E/3511NDAnthracene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (a) anthracene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (a) pyrene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDChrysene
ug/L 6/21/236/20/2310EPA 8270E/3511NDDibenzo (a,h) anthracene
ug/L 6/21/236/20/2310EPA 8270E/3511NDFluoranthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDFluorene
ug/L 6/21/236/20/2310EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 6/21/236/20/2310EPA 8270E/3511NDPhenanthrene
ug/L 6/21/236/20/2310EPA 8270E/3511NDPyrene
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 7 of 11Page 7 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-4 @ 8
Lab ID: 23F1407-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 13:15
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2359EPA 8015 C4470Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23292EPA 1664BMod4510Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800085.0Total Solids
mg/kg dry 6/21/236/19/23292EPA 1664BMod3570TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.294 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 8 of 11Page 8 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-4 @ 13
Lab ID: 23F1407-08Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 13:25
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2363EPA 8015 C1300Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23315EPA 1664BMod1330Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800079.0Total Solids
mg/kg dry 6/21/236/19/23315EPA 1664BMod1010TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.301 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 9 of 11Page 9 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 10 of 11Page 10 of 12
Page 11 of 12
Page 12 of 12
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Wasatch Environmental
Attn: Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
Work Order: 23F1407
Project: Sears UST LSI
6/27/2023
Approved By:
Reed Hendricks, Director of Operations
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-1 @ 13
Lab ID: 23F1407-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 9:30
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2363EPA 8015 CNDDiesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23312EPA 1664BModNDOil & Grease (HEM)
%6/20/236/19/230.1 CTF800080.0Total Solids
mg/kg dry 6/19/236/19/23312EPA 1664BModNDTRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.265 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 2 of 11Page 2 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-1 @ GW
Lab ID: 23F1407-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 10:00
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 6/19/236/19/231.0 EPA 8015 CNDDiesel Range Organics
Inorganic
mg/L 6/19/236/19/235EPA 1664BNDOil & Grease (HEM)
mg/L 6/20/236/19/235EPA 1664BNDTRPH (SGT-HEM)
MBTEXn
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDBenzene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDEthylbenzene
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDNaphthalene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDToluene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/L 6/19/236/19/230.125 EPA 8260B/C 5030ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 3 of 11Page 3 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-2 @ 8
Lab ID: 23F1407-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 10:45
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2357EPA 8015 C8190Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23283EPA 1664BMod10900Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800088.1Total Solids
mg/kg dry 6/21/236/19/23283EPA 1664BMod7770TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.11 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.11 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.28 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/232.84 EPA 8260B/C 5035A7.52Gasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 4 of 11Page 4 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-2 @ 15
Lab ID: 23F1407-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 11:10
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2364EPA 8015 C110Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23318EPA 1664BModNDOil & Grease (HEM)
%6/20/236/19/230.1 CTF800078.4Total Solids
mg/kg dry 6/19/236/19/23318EPA 1664BModNDTRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.275 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 5 of 11Page 5 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-3 @ 13
Lab ID: 23F1407-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 11:55
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2363EPA 8015 C128Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23313EPA 1664BMod639Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800079.4Total Solids
mg/kg dry 6/21/236/19/23313EPA 1664BMod420TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.254 EPA 8260B/C 5035ANDGasoline Range Organics
Semi-Volatile Compounds
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDC11-12 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDC13-C16 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550B22.5C17-C21 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550B30.7C22-C35 Aliphatic hydrocarbons
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDC11-C13 Alkyl Naphthalenes
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDTotal C12-C22 PAH
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDAcenaphthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDAcenaphthylene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDAnthracene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (a) anthracene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (a) pyrene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (b) fluoranthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (g,h,i) perylene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDBenzo (k) fluoranthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDChrysene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDFluoranthene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDFluorene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDIndeno (1,2,3-cd) pyrene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDPhenanthrene
mg/kg dry 6/19/236/19/230.50 EPA 8270E/3550BNDPyrene
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 6 of 11Page 6 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-3 GW
Lab ID: 23F1407-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 12:10
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 6/19/236/19/231.0 EPA 8015 C11.8Diesel Range Organics
Inorganic
mg/L 6/19/236/19/236EPA 1664B39Oil & Grease (HEM)
mg/L 6/21/236/19/236EPA 1664B28TRPH (SGT-HEM)
MBTEXn
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDBenzene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDEthylbenzene
mg/L 6/19/236/19/230.005 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDNaphthalene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDToluene
mg/L 6/19/236/19/230.012 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/L 6/19/236/19/230.125 EPA 8260B/C 5030ANDGasoline Range Organics
Semi-Volatile Compounds
ug/L 6/21/236/20/2310EPA 8270E/3511NDC11-12 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/3511NDC13-C16 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/35114C17-C21 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/3511NDC22-C35 Aliphatic hydrocarbons
ug/L 6/21/236/20/2310EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
ug/L 6/21/236/20/2310EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 6/21/236/20/2310EPA 8270E/3511NDAcenaphthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDAcenaphthylene
ug/L 6/21/236/20/2310EPA 8270E/3511NDAnthracene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (a) anthracene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (a) pyrene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 6/21/236/20/2310EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDChrysene
ug/L 6/21/236/20/2310EPA 8270E/3511NDDibenzo (a,h) anthracene
ug/L 6/21/236/20/2310EPA 8270E/3511NDFluoranthene
ug/L 6/21/236/20/2310EPA 8270E/3511NDFluorene
ug/L 6/21/236/20/2310EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 6/21/236/20/2310EPA 8270E/3511NDPhenanthrene
ug/L 6/21/236/20/2310EPA 8270E/3511NDPyrene
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 7 of 11Page 7 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-4 @ 8
Lab ID: 23F1407-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 13:15
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2359EPA 8015 C4470Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23292EPA 1664BMod4510Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800085.0Total Solids
mg/kg dry 6/21/236/19/23292EPA 1664BMod3570TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.294 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 8 of 11Page 8 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Sample ID: GP-4 @ 13
Lab ID: 23F1407-08Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/16/23 13:25
Preparation
Date/Time
Sampled By: Chris Nolan/Jake Scott
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/kg dry 6/26/236/23/2363EPA 8015 C1300Diesel Range Organics
Inorganic
mg/kg dry 6/19/236/19/23315EPA 1664BMod1330Oil & Grease (HEM)
%6/20/236/19/230.1 CTF800079.0Total Solids
mg/kg dry 6/21/236/19/23315EPA 1664BMod1010TRPH (SGT-HEM)
MBTEXn
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDBenzene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDEthylbenzene
mg/kg dry 6/22/236/22/230.01 EPA 8260D /5030ANDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDNaphthalene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDToluene
mg/kg dry 6/22/236/22/230.03 EPA 8260D /5030ANDXylenes, total
Gasoline Range
mg/kg dry 6/22/236/22/230.301 EPA 8260B/C 5035ANDGasoline Range Organics
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 9 of 11Page 9 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
1314-094B
6/16/23 14:50 @ 1.3 °C
6/27/2023
Sears UST LSI
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Project Name: Sears UST LSI CtF WO#: 23F1407
www.ChemtechFord.com
Page 10 of 11Page 10 of 12
Page 11 of 12
Page 12 of 12

Appendix C
DERR SSCL Documentation

Page 1 of 3
SSCL Calculator Prepared for:SSCL Calculator Prepared by:
Site name:
Site address:
Facility ID:
Release ID:
Contact name:
Contact phone:
Contact e-mail:
Site-Specific Cleanup Levels* for Residential/ Unknown Receptors
Air Groundwater Soil
SSCLair SSCLwing SSCLwesp SSCLwamb SSCLs-leach SSCLsesp SSCLsamb SSCLss
(See Eq. D.1)(See Eq. D.2)(See Eq. D.3)(See Eq. D.4)(See Eq. D.5)(See Eq. D.6)(See Eq. D.7)(See Eq. D.8)
Air Groundwater Groundwater Groundwater Subsurface soil Subsurface soil Subsurface soil Surface Soil
Inhalation Ingestion Indoor air
(enclosed space)
vapor inhalation
Outdoor air
(ambient) vapor
inhalation
Leaching to
groundwater
(groundwater
ingestion)
Indoor air
(enclosed space)
vapor inhalation
Outdoor air
(ambient) vapor
inhalation
Ingestion of soil,
inhalation of
vapors and
particles, and
dermal contact
µg/m3 air µg/m3 air mg/L water mg/L water mg/L water mg/L water mg/kg soil mg/kg soil mg/kg soil mg/kg soil mg/kg soil
Benzene (71-43-2)c 2.94E-01 2.94E-03 5.46E-01 4.44E+02 0.0025 GP-7 2.07E-03 8.23E-02 1.21E+01 3.48E+00 0.005 GP-7
Toluene (108-88-3)nc 5.22E+03 2.92E+00 1.03E+04 8.87E+06 0.006 <4.85E+00 2.91E+03 4.29E+05 3.72E+03 0.015 <
Ethylbenzene (100-41-4)nc 1.06E+03 3.65E+00 2.20E+03 1.97E+06 0.006 <1.30E+01 1.10E+03 1.63E+05 4.55E+03 0.015 <
Xylenes (1330-20-7)nc 1.06E+02 7.30E+00 2.11E+02 1.76E+05 0.006 <2.81E+01 1.62E+02 2.39E+04 6.08E+03 0.015 <
Naphthalene (91-20-3)nc 3.14E+00 7.30E-01 3.31E+01 1.04E+04 0.006 <3.96E+00 1.18E+02 1.74E+04 1.31E+03 0.015 <
MTBE (1634-04-04)nc 3.13E+03 1.83E-01 9.80E+03 1.99E+06 0.006 <4.73E-02 1.92E+03 2.83E+05 2.33E+02 0.015 <
Alkyl benzenes (C9-C10)
[average values]nc 2.19E+02 1.46E+00 4.75E+02 4.23E+05 0.062 <1.18E+01 5.52E+02 8.13E+04 1.77E+03 0.14 <
Alkyl naphthalenes (C11-C13)
[average values]nc 2.19E+02 1.46E+00 2.18E+03 6.93E+05 0.005 <6.43E+01 6.26E+04 9.23E+06 1.09E+04 1.23 <
Total PAHs (C12-C22)
[average values]nc 1.10E+02 1.10E+00 1.69E+02 1.06E+05 0.005 <4.28E+02 2.50E+04 3.69E+06 7.99E+03 1.23 <
Aliphatics (C5-C6)
[Hexane (110-54-3)]nc 2.19E+02 2.19E+00 3.50E+02 3.68E+05 0.062 <1.62E+01 3.65E+00 5.39E+02 2.60E+03 0.14 <
Aliphatics (C7-C8)
[Heptane (142-82-5)]nc 2.19E+02 2.19E+00 4.23E+02 4.46E+05 0.062 <5.70E+01 8.76E+00 1.29E+03 2.60E+03 0.14 <
Aliphatics (C9-C10)
[Nonane (111-84-2)]nc 1.06E+03 3.65E+00 2.39E+03 2.52E+06 0.062 <7.65E+02 1.70E+02 2.51E+04 4.55E+03 0.14 <
Aliphatics (C11-C12)
[Undecane (1120-21-4)]nc 1.06E+03 3.65E+00 2.71E+03 2.86E+06 0.054 7.22E+03 2.25E+03 3.32E+05 4.55E+03 2.49 GP-7
Aliphatics (C13-C16)
[Hexadecane (544-76-3)]nc 1.06E+03 3.65E+00 3.13E+03 3.30E+06 0.028 1.14E+05 4.13E+04 6.08E+06 4.63E+03 3.57
Aliphatics (C17-C21)
[Heptadecane (629-78-7)]nc 7.30E+03 7.30E+01 2.58E+04 2.72E+07 0.257 1.82E+08 3.99E+07 5.88E+09 9.32E+04 154
Aliphatics (C22-C35)
[Heptadecane (629-78-7)]nc 7.30E+03 7.30E+01 2.58E+04 2.72E+07 0.724 1.82E+08 3.99E+07 5.88E+09 9.32E+04 352
Highest
Air
Concentrations
Remaining at the
Site
Air
Comments
(e.g. Sample ID,
Sample Date, etc.)
Groundwater Comments
(e.g. Sample ID,
Sample Date, etc.)Chemical Name (CAS #)
Pr
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m
a
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y

C
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e
m
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c
a
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s

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f

C
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To
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H
y
d
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o
c
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F
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c
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Highest
Groundwater
Concentrations
Remaining at the
Site
Soil
Comments
(e.g. Sample ID,
Sample Depth,
Sample Date, etc.)
Highest
Soil
Concentrations
Remaining at the
Site
Name:
Company, Agency, other:
Phone:
E-mail:
UST Consultant Cert. #:
801 972-8400
[e-mail]
Christopher J. Nolan, P.G.
CC0118
Wasatch Environmental
[e-mail]
Date prepared:10/24/2023
Former Sears
750 South Main Street
4000924
OGP
Chris Nolan
DERR site-specific-cleanup-level-caculator Former Sears.xlsm Page 1 of 3
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Page 2 of 3
Site-Specific Cleanup Levels* for Residential/ Unknown Receptors
Air Groundwater Soil
SSCLair SSCLwing SSCLwesp SSCLwamb SSCLs-leach SSCLsesp SSCLsamb SSCLss
(See Eq. D.1)(See Eq. D.2)(See Eq. D.3)(See Eq. D.4)(See Eq. D.5)(See Eq. D.6)(See Eq. D.7)(See Eq. D.8)
Air Groundwater Groundwater Groundwater Subsurface soil Subsurface soil Subsurface soil Surface Soil
Inhalation Ingestion Indoor air
(enclosed space)
vapor inhalation
Outdoor air
(ambient) vapor
inhalation
Leaching to
groundwater
(groundwater
ingestion)
Indoor air
(enclosed space)
vapor inhalation
Outdoor air
(ambient) vapor
inhalation
Ingestion of soil,
inhalation of
vapors and
particles, and
dermal contact
µg/m3 air µg/m3 air mg/L water mg/L water mg/L water mg/L water mg/kg soil mg/kg soil mg/kg soil mg/kg soil mg/kg soil
Highest
Air
Concentrations
Remaining at the
Site
Air
Comments
(e.g. Sample ID,
Sample Date, etc.)
Groundwater Comments
(e.g. Sample ID,
Sample Date, etc.)Chemical Name (CAS #)
Pr
i
m
a
r
y

C
h
e
m
i
c
a
l
s

o
f

C
o
n
c
e
r
n
Highest
Groundwater
Concentrations
Remaining at the
Site
Soil
Comments
(e.g. Sample ID,
Sample Depth,
Sample Date, etc.)
Highest
Soil
Concentrations
Remaining at the
Site
Acenaphthylene (208-96-8)nc 1.10E+02 1.10E+00 4.33E+03 8.79E+05 0.005 <1.91E+01 5.70E+04 8.40E+06 8.14E+03 2.46 <
Acenaphthene (83-32-9)nc 6.21E+01 2.19E+00 2.02E+03 4.25E+05 0.005 <3.28E+01 2.27E+04 3.34E+06 1.46E+04 2.46 <
Fluorene (86-73-7)nc 4.02E+01 1.46E+00 1.77E+03 3.49E+05 0.005 <3.57E+01 3.29E+04 4.85E+06 1.01E+04 2.46 <
Phenanthrene (85-01-8)nc 1.10E+02 1.10E+00 7.13E+03 1.34E+06 0.005 <5.56E+01 2.78E+05 4.11E+07 8.31E+03 2.46 <
Anthracene (120-12-7)nc 3.13E+02 1.10E+01 1.89E+04 3.56E+06 0.005 <5.25E+02 6.96E+05 1.03E+08 7.94E+04 2.46 <
Fluoranthene (206-44-0)nc 4.16E+01 1.46E+00 3.87E+03 7.08E+05 0.005 <2.53E+02 5.17E+05 7.62E+07 1.10E+04 2.46 <
Pyrene (129-00-0)nc 3.13E+01 1.10E+00 2.64E+03 4.81E+05 0.005 <1.75E+02 3.26E+05 4.81E+07 8.21E+03 2.46 <
Benz(a)Anthracene (56-55-3)c 1.17E-01 1.17E-04 7.94E+00 1.45E+03 0.005 <7.40E-02 3.90E+03 5.75E+05 9.00E-01 2.46 <
Chrysene (218-01-09)c 1.17E+00 1.17E-02 1.19E+02 2.17E+04 0.005 <5.91E+00 4.68E+04 6.90E+06 8.97E+01 2.46 <
Benzo(b)Fluoranthene (205-99-2)c 1.17E-02 1.17E-04 1.15E+00 2.12E+02 0.005 <6.02E-02 4.57E+02 6.73E+04 8.97E-01 2.46 <
Benzo(k)-Fluoranthene (207-08-09)c 1.17E-01 1.17E-03 1.39E+01 2.52E+03 0.005 <8.78E-01 8.12E+03 1.20E+06 8.98E+00 2.46 <
Benzo(a)-Pyrene (50-32-8)c 1.40E-03 1.17E-05 1.03E-01 1.85E+01 0.005 <9.50E-03 6.47E+01 9.54E+03 8.98E-02 2.46 <
Indeno(1, 2, 3-Cd)Pyrene (193-39-
5)c 1.40E-02 1.17E-04 6.77E+02 1.05E+03 0.005 <5.82E-03 2.72E+04 3.91E+04 8.92E-01 2.46 <
Dibenzo-(a, h)Anthracene (53-70-3)c 1.40E-02 1.17E-04 1.76E+00 3.19E+02 0.005 <5.37E-01 6.30E+03 9.28E+05 9.00E-01 2.46 <
Benzo (g, h, i)-Perylene (191-24-2)nc 1.10E+02 1.10E+00 1.29E+04 2.33E+06 0.005 <2.12E+03 1.93E+07 2.84E+09 8.44E+03 2.46 <
Not used c Not used Not used Not used Not used Not used Not used Not used Not used
Not used c Not used Not used Not used Not used Not used Not used Not used Not used
Not used c Not used Not used Not used Not used Not used Not used Not used Not used
Not used c Not used Not used Not used Not used Not used Not used Not used Not used
Not used c Not used Not used Not used Not used Not used Not used Not used Not used
Not used c Not used Not used Not used Not used Not used Not used Not used Not usedAd
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(c
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In
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P
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(
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DERR site-specific-cleanup-level-caculator Former Sears.xlsm Page 2 of 3
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3:17 PM
Page 3 of 3
Site-Specific Cleanup Levels* for Residential/ Unknown Receptors
Air Groundwater Soil
SSCLair SSCLwing SSCLwesp SSCLwamb SSCLs-leach SSCLsesp SSCLsamb SSCLss
(See Eq. D.1)(See Eq. D.2)(See Eq. D.3)(See Eq. D.4)(See Eq. D.5)(See Eq. D.6)(See Eq. D.7)(See Eq. D.8)
Air Groundwater Groundwater Groundwater Subsurface soil Subsurface soil Subsurface soil Surface Soil
Inhalation Ingestion Indoor air
(enclosed space)
vapor inhalation
Outdoor air
(ambient) vapor
inhalation
Leaching to
groundwater
(groundwater
ingestion)
Indoor air
(enclosed space)
vapor inhalation
Outdoor air
(ambient) vapor
inhalation
Ingestion of soil,
inhalation of
vapors and
particles, and
dermal contact
µg/m3 air µg/m3 air mg/L water mg/L water mg/L water mg/L water mg/kg soil mg/kg soil mg/kg soil mg/kg soil mg/kg soil
Highest
Air
Concentrations
Remaining at the
Site
Air
Comments
(e.g. Sample ID,
Sample Date, etc.)
Groundwater Comments
(e.g. Sample ID,
Sample Date, etc.)Chemical Name (CAS #)
Pr
i
m
a
r
y

C
h
e
m
i
c
a
l
s

o
f

C
o
n
c
e
r
n
Highest
Groundwater
Concentrations
Remaining at the
Site
Soil
Comments
(e.g. Sample ID,
Sample Depth,
Sample Date, etc.)
Highest
Soil
Concentrations
Remaining at the
Site
Not used nc Not used Not used Not used Not used Not used Not used Not used Not used
Not used nc Not used Not used Not used Not used Not used Not used Not used Not used
Not used nc Not used Not used Not used Not used Not used Not used Not used Not used
Not used nc Not used Not used Not used Not used Not used Not used Not used Not used
Not used nc Not used Not used Not used Not used Not used Not used Not used Not used
Not used nc Not used Not used Not used Not used Not used Not used Not used Not used
* - Site-Specific Cleanup Levels assume a Natural Attenuation Factor of 1 (i.e. no natural attenuation). c - carcinogen; nc - non-carcinogen
Site-specific Parameters used in Calculations
Parameter Comments
Soil
Receptor
i
Lgw
Ls
Pavement
Precip.
Soil Zone
W
Ad
d
i
t
i
o
n
a
l

C
h
e
m
i
c
a
l
s

o
f

C
o
n
c
e
r
n
(n
o
n
-
c
a
r
c
i
n
o
g
e
n
t
s
)
Width of contaminated source area parallel to groundwater flow or wind direction
Annual precipitation
Is contamination present in the saturated zone?
Is contamination beneath pavement or bare soils?
Depth to contaminated soil
Depth to groundwater
Hydraulic gradient
Select the most sensitive Receptor that is present at the site
Soil type representative of site
Description
16.5
No
50
Value
Silty clay
Residential/ Unknown
0.005
13
8
UNPAVED: contamination beneath
bare soils
inches/year
Not applicable
ft
Units
Not applicable
Not applicable
ft-vertical/ft-lateral
ft
Not applicable
ft
DERR site-specific-cleanup-level-caculator Former Sears.xlsm Page 3 of 3
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