DERR-2025-003750

W-Metals, GRO, DRO, O&G
Soil Frac
PAHs
Metals, GRO, DRO, O&G
Notes:
NE
Barium
Chromium
Lead
Mercury
Cadmium
Silver
Sample ID
Date
SALT LAKE CITY, UTAH
Tabular data summary includes analytes that were detected in at least one soil sample. Refer to official laboratory report for laboratory reporting limits and method detection limits
for other constituents not presented in this summary.
TPH-GRO
NE - Not Established
Selenium
(all values expressed in micro grams per liter [µg/L)
EPA MCL
EPA MCL - United States Environmental Protection Agency (EPA) Maximum Contaminant Level (MCL)
UDEQ - Utah Department of Environmental Quality, Division of Environmental Response and Remediation
O&G w/SGT
PROPOSED LIBERTY LOFT SITE
217 EAST 400 SOUTH 227 EAST 400 SOUTH, and 377 SOUTH 200 EAST
TPH-DRO
TPH GRO/DRO - Total Petroleum Hydrocarbons as Gasoline and Diesel
EPA Residential Soil RSL[1]
O&G w/ SGT- Oil and Grease w/ Silica Gel Treatment
TPH-GRO & DRO (EPA Method 8015)
O&G w/SGT (EPA Method 9071)
<2.00
0.290 J
P1 - RPD value not applicable for sample concentrations less than 5 times the reporting limit.
1.48 J
1.33 J
0.212 J
1.34 J
B - The same analyte is found in the associated blank.
1229-1265 SOUTH 300 WEST
LIBERTY CORNER APARTMENTS
0.366 J
NA
1.86 J
J - Identification of analyte is acceptable; the reported value is an estimate.
[1] - United States Environmental Protection Agency (EPA) Regional Screening Levels (RSL) November 2023, TR = 1x10-6, HQ = 1.0
Bold concentration indicates an exceedence of the USEPA MCL
(all values expressed in milligrams per kilogram [mg/kg)
UDEQ Initial Screening Level
SOIL FRACTIONATION ANALYTICAL DATA SUMMARY
DATE
SAMPLE I.D.
UNITS
C11 - C12 Aliphatics
C13 - C16 Aliphatics
C17 - C21 Aliphatics
C22 - C35 Aliphatics
C11 - C13 Alkyl Naphthalenes

C5-C6 Aliphatics
C7-C8 Aliphatics
C9-C10 Aliphatics
C9-C10 Alkyl Benzenes
Equip. Blank #2
Equip. Blank #3
VOCs, TPH-GRO, TPH-DRO, AND OIL & GREASE SOIL ANALTICAL DATA SUMMARY
mg/kg -milligrams per kilogram
mg/kg
RCRA 8 METALS GROUNDWATER ANALTICAL DATA SUMMARY
RCRA Metals (EPA Method 6020)
EX-1 South Wall @ 5-6'
EX-1 West SW Wall @ 5-6'
EX-1 South Floor @ 10-11'
EX-1 West NW Wall @ 5-6'
EX-1 West NW Wall @ 9-10'
1.96 J
0.581 J
<0.657
0.556 J
<0696
0.390 J
0.992 J
<0.743
0.881 J
<0.654
0.565 J
0.819 J
<0.659
0.407 J
0.442 J
<0.117
<0.0526
EX-1 West SW Wall @ 9-10'
<0.0557
0.0357 J
<0.0523
<0.0541
17.7 J
2.30 J
<5.23
0.0522 J
<0.131
0.0465 J
<131
<139
87.3 J
104 J, P1
80.6 J
SS-2 @ 2-3'
SS-3 @ 2-3'
SS-4 @ 2-3'
0.143 J
<2.13
0.272 J
0.140 J
<2.16
0.264 J
<2.25
0.123 J

0.277 J
<0.0426
<0.0432
<0.0450
1.67 J
0.0624 J
0.0456 J
84.0 J,J6,P1
<108
<113
Arsenic*
Bold values indicated an exceedence of the USEPA Residential RSLs and/or an exceedence of UDEQ Initial Screening Levels, and/or the arsenic BTV.
* - Site Specific Background Threshold Value (BTV) for Arsenic is 13.6 mg/kg
EX-3 North @ 2'-3'
EX-3 East @ 2'-3'
EX-3 South @ 2'-3'
EX-3 West @ 2'-3'
0.762 J
EX-4 North @ 2-3'
EX-3 Floor @ 4'
EX-4 East @ 2-3'
EX-4 South @ 2-3'
EX-4 West @ 2-3'
EX-4 Floor @ 4'
0.528 J
0.137 J
EX-5 North @ 2-3'
EX-5 South @ 2-3'
EX-5 East @ 2-3'
EX-5 West @ 2-3'
EX-5 Floor @ 4'
EX-1
EX-6, SB-17 Area
Blind Dup #2
Blind Dup #3
Blind Dup #2 was collected from EX-4 Floor at 4'
EX-6 North @ 2-3'
EX-6 North @ 5-6'
EX-6 East @ 2-3'
EX-6 East @ 5-6'
EX-6 South @ 2-3'
EX-6 South @ 5-6'
EX-6 West @ 2-3'
EX-6 West @ 5-6'
EX-6 Floor @ 6'
80.9 J
<0.0574
0.438 J
0.903 J
<0.718
1.87 J
EX-1 South Wall @ 9-10'
62.7 J
106 J
68.5 J
EX-1 North Wall @ 8-10'
EX-1 East NE Wall @ 8-10'
EX-1 East NE Wall @ 5-6'
EX-1 East SE Wall @ 5-6'
EX-1 East SE Wall @ 8-10'

1.72 J
1.14 J
EX-1 North Floor @ 10-11'
EX-1 North Wall @ 5-6'
<159
<134
<132
C-Stockpile, S-2
C-Stockpile, S-3
C-Stockpile, S-1
C-Stockpile, S-4
C-Stockpile, S-5
<0.0549
0.299 J
0.686 J
<0.687
13. 4 B
0.787 J
0.158 J
0.888 J
<0.0532
<0.665
0.0799 J
0.567 J
0.510 B,J
0.128 J
0.0774 J
<0.0522
0.399 J
0.432 B,J
<0.652
0.0290 J
<0.0521
0.476 J
1.07 B,J
<0.651
0.0893 J
0.459 J
0.889 J
<0.686
0.0694 J
<0.0514
0.416 J
<0.642
0.0902 J
<5.14
0.495 J
0.637 B,J
<0.641
0.0606 J
0.535 J
0.656 B,J
0.261 J
1.06 J
0.690 B,J
0.383 J
0.0358 J
C-Stockpile, S-6**
** - Soil stockpile was transported to E.T Technologies
<0.900

<0.500
1.10 J
<0.110
0.138 J
<0.200
<100
<5000
1.26 J
0.307 B,J
0.639 B,J
*** - UDEQ Split Sample
Blind Dup #3 was collected from EX-5 East at 2-3'
0.0482 B,J
TABLE 1
TABLE 3
EX-5 North @ 2-3', SS***
EX-5 South @ 2-3', SS***
Arsenic
110 J
97.9 J
<128
<127
<130
50.8 J
<137
115 J
112 J,J3,J6,P1
<129
107 J
1.82 J
TABLE 2A
PAH SOIL ANALYTICAL DATA SUMMARY
1229 - 1265 SOUTH 300 WEST
(all concentrations are expressed in milligrams per kilograms, mg/kg)
Sample Location
Anthracene
Acenaphthene
Acenaphthylene
Benz(a)anthracene
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(g,h,i)perylene
Benzo(k)fluoranthene
Chrysene
Dibenz(a,h)anthracene
Fluoranthene
Fluorene
Indeno(1,2,3-cd)pyrene
Phenanthrene
Pyrene
1-Methylnaphthalene
2-Methylnaphthalene
2-Chlronaphthalene
Naphthalene
<0.00640
<0.0213
<0.00648
<0.0216
<0.00676
<0.0225

EX-2 North @ 2-3'
0.00673 J,J3
<0.00787 J3
0.00247 J
0.0201 J3
0.0211 J3
0.0240 J3
0.0140 J3
0.00818 J3
0.0244 J3
0.00304 J
0.0451 J3, J5,J6
0.0139 J3
<0.0262
0.0281 J3,J5
0.0404 J3,J5,J6
EX-2 North @ 5-6'
0.00388 J
0.00565 J
<0.0276
0.00655 J
Blind Dup #1
<0.00831
0.00729 J
0.00600 J
<0.0277
EX-2 East @ 2-3'
<0.00769
0.00220 J
0.00347 J
<0.0256
EX-2 East @ 5-6'
<0.00875
0.00461 J
0.00439 J
0.00359 J
<0.0292
0.00476 J
EX-2 South @ 2-3'
<0.00795
<0.0265
EX-2 South @ 5-6'
<0.00824
<0.0275
EX-2 West @ 2-3'
<0.00911
0.00574 J
0.00618 J
0.00687 J
0.00480 J
0.00790 J
0.00447 J
<0.0304
0.00656 J
0.00488 J
EX-2 West @ 5-6'
<0.00861
<0.0287
Ex-2 Floor @ 6'
<0.00770

0.00585 J
0.00639 J
0.00543 J
<0.0257
0.00571 J
U.S. EPA RSL for Residential Soil
LEGEND
PAH - Polyaromatic Hydrocarbons
J3 - The associaated batch QC was outside the estabsihed quality control range for precision.
J5 - The sample matrix interfered with the ability to make any accurate determination; spike value is high.
J6 - The sample matrix interfered with the ability to make any accurate determination; spike value is low.
Blind Dup #1 - Blind Duplicate #1 was collected from EX-2, North Wall @ 5-6'
[1] - United States Environmental Protection Agency (EPA) Regional Screening Levels (RSL) November 2024, TR = 1x10-6, HQ = 1.0
Bold values indicated an exceedence of the EPA Residential RSL and/or the UDEQ Initial Screening Level
TABLE 2B
PAH EQUIPMENT BLANK ANALYTICAL DATA SUMMARY
(all concentrations are expressed in micorgrams per liter, ug/L)
Equipment Blank #1
<0.00500
U.S. EPA MCL
TABLE 4
?5?/?8?/?2025
5.48
260.00
936.00
?5?/?6?/?2025
?5?/?5?/?2025
?5?/?5?/?2025
1000.00
1000.00
10000.00
10.00
2000.00
5.00
100.00
15.00
2.00
50.00
100.00
?5?/?15?/?2025
?4?/?22?/?2025
?4?/?22?/?2025
?4?/?22?/?2025
?5?/?2?/?2025
?5?/?2?/?2025
0.02
0.01
0.07
0.07
0.07
0.05
0.03
0.08
0.01
0.14
0.05
0.06
0.13
?5?/?2?/?2025
8.46E-03

8.32E-03
0.01
0.02
0.01
0.02
?5?/?2?/?2025
?5?/?2?/?2025
0.01
0.01
?5?/?2?/?2025
?5?/?2?/?2025
?5?/?2?/?2025
0.01
0.01
?5?/?2?/?2025
?5?/?2?/?2025
8.13E-03
0.01
0.01
51.00
18000.00
3600.00
1.10
0.11
1.10
11.00
110.00
0.11
2400.00
2400.00
1.10
1800.00
18.00
240.00
240.00
?5?/?2?/?2025
0.20
?4?/?22?/?2025
8.26
60.80
6.41
14.90
?4?/?22?/?2025
8.51
81.90
7.37
14.00
?4?/?22?/?2025
7.67
62.90
6.63
11.60
?5?/?1?/?2025
11.30
189.00
12.80
13.70
294.00
0.08
155.00

?5?/?1?/?2025
3.09
151.00
8.36
8.03
?5?/?1?/?2025
7.95
166.00
7.36
13.80
1.27
0.15
?5?/?1?/?2025
6.95
210.00
13.20
29.00
8.95
23.60
?5?/?1?/?2025
2.29
127.00
4.65
7.70
?5?/?1?/?2025
9.31
185.00
9.33
49.30
0.42
1.00
23.90
?5?/?1?/?2025
3.94
176.00
10.80
9.28
260.00
2290.00
?5?/?2?/?2025
7.75
283.00
27.80
13.40
0.88
?5?/?5?/?2025
5.70
180.00
24.00
13.20
19.50
?5?/?5?/?2025
13.80
266.00
16.20
151.00
0.37
0.57
38.30
?5?/?5?/?2025

29.80
242.00
13.60
372.00
3.10
0.88
0.58
34.30
?5?/?5?/?2025
2.55
143.00
0.33
14.70
8.25
6.74
?5?/?5?/?2025
20.00
148.00
15.30
106.00
0.20
11.70
?5?/?5?/?2025
3.52
183.00
18.80
11.40
?5?/?6?/?2025
3.92
190.00
16.20
15.00
5.43
?5?/?6?/?2025
3.86
162.00
19.40
9.66
?5?/?6?/?2025
6.30
170.00
22.50
13.80
?5?/?6?/?2025
8.92
145.00
16.80
39.10
0.09
5.81
?5?/?6?/?2025
12.50
164.00
17.80
47.70
0.11
0.16
6.11
?5?/?6?/?2025
16.30

190.00
16.30
178.00
0.50
46.20
?5?/?2?/?2025
812.00
?5?/?2?/?2025
922.00
?5?/?2?/?2025
942.00
?5?/?2?/?2025
?5?/?2?/?2025
?5?/?5?/?2025
9.70
153.00
?5?/?5?/?2025
14.60
868.00
?5?/?5?/?2025
?5?/?5?/?2025
8.44
85.50
?5?/?5?/?2025
17.50
410.00
?5?/?5?/?2025
16.10
294.00
?5?/?5?/?2025
13.40
?5?/?5?/?2025
10.60
?5?/?5?/?2025
14.20
?5?/?5?/?2025
12.50
164.00
?5?/?5?/?2025
10.20
?5?/?5?/?2025
13.70
?5?/?5?/?2025
16.80
?5?/?5?/?2025
7.77
?5?/?5?/?2025
132.00
704.00
175.00
?5?/?5?/?2025
8.51
9.76
?5?/?5?/?2025
11.50
49.70
268.00
?5?/?5?/?2025
6.07
13.20

?5?/?5?/?2025
17.50
12.90
?5?/?5?/?2025
3.08
7.01
?5?/?5?/?2025
20.40
45.30
?5?/?5?/?2025
7.91
13.20
?5?/?5?/?2025
12.80
19.50
150.00
500.00
1000.00
0.68
15000.00
71.00
200.00
11.00
390.00
390.00